# ethcircuits.com ## Posts - [How To Make a Mosquito Killer Circuit](https://ethcircuits.com/how-to-make-a-mosquito-killer-circuit/): How To Make a Mosquito Killer Circuit How to Make a Mosquito Killer Circuit: DIY High-Voltage Circuit Explained The mosquito is not only annoying, but it is also dangerous, being a carrier of many diseases, including malaria, dengue, and Zika virus. Most people, of course, rely on mosquito-killing agents put up by others. But why not try to make one yourself right at home? This article discusses the making of a high-voltage mosquito killer and will give a brief overview of its working principle, components needed, and working of the circuit, thus giving you a clear view of how simple […] - [LDR Circuit Diagram With Relay](https://ethcircuits.com/ldr-circuit-diagram-with-relay/): LDR Circuit Diagram With Relay In today’s article, we will explore an exciting project involving an LDR circuit diagram with relay. This project is not only simple to understand but also helps you grasp the basics of electronics. By the end, you will know how to create a light-dependent resistor (LDR) circuit that can control a relay. What is an LDR? Before diving into the LDR circuit diagram with relay, let’s first understand what an LDR is. An LDR, or light-dependent resistor, is a type of resistor that changes its resistance based on the amount of light falling on it. […] - [What does an inductor actually do?](https://ethcircuits.com/what-does-an-inductor-actually-do/): What does an inductor actually do? What Does an Inductor Actually Do? Why Do We Have Inductors in Circuits? Inductors are fundamental components in electrical circuits, playing a crucial role in shaping the behavior of electrical signals. Understanding what an inductor actually does and why we have inductors in circuits is key to grasping how modern electronic devices function. In this comprehensive guide, we’ll delve into the purpose and functionality of inductors, explore their applications, and answer common questions about these essential components. What Does an Inductor Actually Do? The Basic Principle of Inductors An inductor is a passive electrical […] - [How does a capacitor work?](https://ethcircuits.com/how-does-a-capacitor-work/): How Does a Capacitor Work? How Does a Capacitor Work? Understanding the Basics Capacitors, often referred to as “condensers,” are essential components in electronic circuits. They are devices that store electrical energy in an electrostatic field. This ability to store and release energy makes them invaluable in various applications, from power supplies to signal processing. The Anatomy of a Capacitor A capacitor typically consists of two conductive plates separated by an insulating material known as a dielectric. The dielectric can be made from various materials, including air, paper, ceramic, and electrolytic substances. The specific choice of dielectric determines the capacitor’s […] - [Why should you always include a resistor with an LED?](https://ethcircuits.com/why-should-you-always-include-a-resistor-with-an-led/): Why should you always include a resistor with an LED: A Comprehensive Guide Understanding the Role of Resistors in LED Circuits LEDs (Light-Emitting Diodes) are incredibly efficient and long-lasting light sources, widely used in various applications from electronics to automotive lighting. However, to ensure optimal performance and prevent damage, it’s crucial to include a resistor in the circuit. The Importance of Current Limiting LEDs are highly sensitive to current. If too much current flows through an LED, it can cause it to burn out or emit excessive heat, leading to premature failure. A resistor, placed in series with the LED, […] - [Electric Gas Lighter Circuit Diagram](https://ethcircuits.com/diy-electric-gas-lighter-circuit-diagram/): How to Make an Electric Gas Lighter at Home In this article, we will explore the process of making an electric gas lighter circuit at home. An electric gas lighter is a handy tool used to ignite gas stoves and ovens. It operates using an electric spark, which is generated through a simple circuit. We will cover the definition of an electric gas lighter, provide a detailed explanation of how the electric gas lighter circuit works, discuss the circuit diagram, and highlight important safety considerations.By the end of this article, you will have a comprehensive understanding of how to create […] - [How to Make a DIY Arc Lighter at Home](https://ethcircuits.com/diy-arc-lighter-circuit-diagram/): How to Make a DIY Arc Lighter at Home Readers, today I will be sharing a tutorial on how to make a homemade arc lighter using the tutorial found online. In place of a flame, an electric arc is used in these lighters to light things up on fire. This way they have proved themselves over time as modern, environmentally friendly alternatives to conventional lighters that one can use till they wear out. It requires that you come up with an easy assembly of common parts whose wiring is evident. As such you will be able to construct a working […] - [What is the PCB Fabrication Process?](https://ethcircuits.com/what-is-the-pcb-fabrication-process/): What is the PCB (Printed Circuit Boards) Fabrication Process? Introduction to PCB Fabrication: PCBs (printed circuit boards) play a significant role as components in electronic devices. PCBs are used to connect electronic devices via conductive channels. The PCB fabrication process creates these boards from scratch, to ensure accuracy and reliability in the production of electronic equipment. Designing the PCB Layout: To start the creation process of PCBs, designers focus on creating a diagrammatic plan that gives the outline of connections and components. The use of designing software of PCB boosts this process and also helps with the efficient placement of […] - [Over Load Protection Circuit Diagram](https://ethcircuits.com/overload-protection-circuit-over-current-protection/): Overload Protection Circuit | Over Current Protection Circuit This circuit is a modified version of the My Previous Circuit (Simple Short Circuit Protection) this circuit not only protect your device from short circuit it also protect from overload and overcurrent What is Overload  The term “overload” describes a slight and gradual increase in current value over a relatively long period. For Example:-  This is due to the excessive amount of current drawn by the motor, which can be many times the rated current. This is caused by too much load on the motor. The systems are protected With the help […] - [High Power Li-ion Battery Charger](https://ethcircuits.com/high-power-li-ion-battery-charger-circuit-diagram/): High Power Li-ion Battery Charger Circuit Diagram Lithium-ion batteries have seamlessly woven themselves into our daily routines, energizing essentials like smartphones and even propelling electric vehicles. Ensuring these batteries function optimally hinges on possessing a trustworthy and effective charger. This article is tailored to guide you through the process of crafting a high-current lithium battery charger circuit, providing you with a comprehensive understanding of each step involved. If you need a High Power Li-ion Battery Charger Circuit Diagram then this article is for you. If you want to charge 5 to 10 Lithium batteries in parallel then this circuit is […] - [Lion Battery Charger With LM317](https://ethcircuits.com/li-ion-battery-charger-circuit-diagram-with-lm317/): 3.7V Li-ion Battery Charger Circuit Diagram With LM317 This is a simple 3.7V Li-ion Battery Charger Circuit Diagram With LM317. Charging takes place first in the current mode – Rising voltage, the current is constant. After reaching the target voltage (Umax), the charger goes into voltage mode when the voltage is constant and the current asymptotically approaches zero. At the moment the current is small, the cell is charged. The target voltage of Li-ion and Li-Pol accumulators is usually 4.2 V (for some types 4.1 V) Target voltage is not the same as the nominal voltage. It is generally 3.7 […] - [How To Convert a Voltmeter into an Ammeter](https://ethcircuits.com/convert-a-voltmeter-into-an-ammeter/): How To Convert a Voltmeter into an Ammeter In the field of electronics, two significant tools used for measuring current and voltage are the ammeter and voltmeter. While these two instruments are used for different purposes, there may be situations where it is necessary to convert a voltmeter into an ammeter, particularly when professional equipment is not available or when one has budgetary constraints. In this article, we will guide you through the simple process of converting a voltmeter into an ammeter using some basic components. Convert a Voltmeter into an Ammeter In order to begin the conversion process, it […] - [Snapchat Planets (Snapchat Solar System)](https://ethcircuits.com/snapchat-planets-in-order-solar-system-explained/): Snapchat Planets In Order 2023: Solar System Explained Snapchat and its new updates! after I first heard about Snapchat Planets, I virtually concept it changed into a typo for plans. And it pressured me why humans are curious approximately Snapchat plans. but, after a little digging, I realized it’s simply Snapchat Planets in order. So, if you’re pressured, too, just dangle in there. In this text, i can speak the whole lot you need to understand about Snapchat Planets, its order, and so much extra. This article is a best guide to know everything about Snapchat Planets in order (Snapchat Solar System)  What do the planets mean on snapchat solar system As the name suggests, Snapchat Planets represent unique solar systems within the Snapchat platform. In this scenario, you take on the role of the sun, while the other planets […] - [How can you protect yourself from internet hoaxes?](https://ethcircuits.com/how-can-you-protect-yourself-from-internet-hoaxes/): How can you protect yourself from internet hoaxes ? To safeguard yourself from internet hoaxes, it is crucial to exercise caution and skepticism towards any information that appears too good to be true. Let’s delve into the details and explore how you can protect yourself from internet hoaxes. The most common online scams Increasing the cyber resilience of users to protect themselves from Internet scams means knowing as much as possible about these incidents and how cybercriminals can attack them. What you do not know or what you are not prepared for, can seriously harm you. These are the most […] - [How to Reset Amazon Fire Stick](https://ethcircuits.com/how-to-reset-amazon-fire-stick-and-remote/): How to Reset Amazon Fire Stick and Remote If you are experiencing problems with your Amazon Fire Stick like the screen goes blank or the interface is slow, then it might be time to reset your device. Here’s a quick guide to help you reset your Amazon Fire Stick to factory condition. Resetting the Fire Stick will usually resolve any issues you have with it, but keep in mind that you will also need to set it up from scratch again as resetting the Fire Stick will erase all data and settings. On your Fire TV, go to Settings. The […] - [Is Fox Now Free with Amazon Prime?](https://ethcircuits.com/is-fox-now-free-with-amazon-prime/): Is Fox Now Free with Amazon Prime? Introduction Fox Now is a streaming platform that provides on- demand access to a variety of Fox Network content, including popular television shows and live sports. Amazon Prime, on the other hand, is a subscription- grounded service with access to tons of pictures, television shows, and other entertainment options. While Amazon Prime offers a wide range of content. In the realm of streaming services, Amazon Prime has surfaced as a prominent player, offering a vast selection of pictures, television shows, and exclusive content. With its comprehensive subscription, druggies can pierce a multitude of […] - [How to Track a Scammer on WhatsApp](https://ethcircuits.com/how-to-track-a-scammer-on-whatsapp/): How to Track a Scammer on WhatsApp In state-of-the-art digital age, scams have end up increasingly more not unusual, and scammers are constantly seeking out new methods to lie to unsuspecting people. One famous platform for scammers is WhatsApp, a broadly used messaging app. if you have fallen sufferer to a rip-off or suspect someone is trying to rip-off you on WhatsApp, it’s important to know a way to music them down. In this text, we are able to offer you with powerful strategies to track a scammer on WhatsApp, ensuring your protection and shielding yourself from ability fraud. Introduction: […] - [36V/48V Battery Charger](https://ethcircuits.com/36v-or-48v-automatic-battery-charger-circuit/): 36V or 48V Automatic Battery Charger Circuit Diagram This 36V or 48V Automatic Battery Charger Circuit will charge any 36 Volt or 48 Volt battery.  This will charge 36 Volt battery up to an optimal 42 Volt full charge level and 48 Volt battery up to an optimal 54.6 Volt. Please check your battery maximum Voltage and use input voltage according to your battery maximum voltage, in this circuit we utilizing very ordinary components. The circuit is highly accurate with  its over charge cut off features. 36V or 48V Automatic Battery Charger Circuit Diagram 36V | 48V Battery Charger Circuit […] - [5V 10A Power Supply](https://ethcircuits.com/5v-10a-power-supply-circuit-diagram/): 5V 10A Power Supply Circuit Diagram With the help of this circuit you can make high ampere constant voltage Power supply like 5amp-10amp-20amp-50amp….. and so on. 7805 high current voltage regulator circuit can increase the load current capacity by adding a transistor. 78XX Three-terminal regulator manual contains positive regulators using NPN transistors, otherwise negative regulators (79xx) use PNP transistors. The following is an example of a 5V DC voltage regulator circuit using IC 7805, which aims to increase the load current of 1A IC 7805 to a higher level (10A). The outermost transistor uses the highest load current. Here I […] - [Download Simple li-ion Battery Charger Circuit Diagram](https://ethcircuits.com/download-simple-li-ion-battery-charger-circuit/): Download Simple li-ion Battery Charger Circuit Diagram Click Here To DownLoad Circuit & PCB Layout With LM358 Click Here To DownLoad Circuit & PCB Layout With LM317 Click Here To DownLoad Gerber File Download High Current Lithium Battrey Charger Circuit Diagram Download PCB Layout High Current Lithium Battery Charger Download Gerber File - [Mini UPS For WIFI Router](https://ethcircuits.com/wifi-router-ups-circuit-mini-ups-for-wifi-router/): WIFI Router UPS Circuit | Mini UPS For WIFI Router Circuit All People with a WIFI connection know their WIFI goes down whenever the power goes out. It is annoying when you are in an important meeting/webinar with Zoom, WebEx, or MS Teams, and there are interruptions due to power outages. I have a solution for you this amazing DIY wifi router ups circuit. This circuit has an automatic switching option between the Power supply and battery pack and this mini ups for wifi router circuit diagram is very easy to make. The backup time of this wifi router ups […] - [Battery Powered Adjustable Power Supply](https://ethcircuits.com/battery-powered-adjustable-power-supply-circuit/): Battery Powered Adjustable Power Supply Circuit The power supply presented here is a pocket sized ” Battery Powered Adjustable Power Supply “. It is portable and fully functional. You not have to now carry all types of batteries like 5V, 9V, 12V, 24V etc.. you get frustrated when every time you need different type of batteries and Different type of adapter for each and every device. While working if electricity goes this is also a big problem. Now this power supply will solve all these problems. It comes handy when you do not want a heavy duty power supply. This […] - [Arduino Relay Timer](https://ethcircuits.com/arduino-relay-timer-circuit-with-arduino-uno/): Arduino Relay Timer | Arduino Delay Microseconds In this article we are learning how to make a simple Arduino Relay Timer, which can be used to switch power on / off at intervals that are automatically adjusted ON and OFF. For example if you want the light to be ON 24 hours and OFF 2 hours, you can do this by quickly adjusting the program code. In the same way you can customize the output times to any other set of desired times by changing the code correctly. Arduino Relay Timer Program Code You just have to compile and upload […] - [Automatic Street Light Controller](https://ethcircuits.com/automatic-street-light-controller-circuit/): How To Make Automatic Street Light Controller Circuit Diagram Have you ever wondered how street lights automatically turn on at night and automatically off in the morning? Is anyone going to TURN ON/OFF these lights? There are a few ways to turn on street lights but the following circuit describes the Automatic Road Light Control Circuit that uses LDR perform this function automatically.  The circuit diagram here is that automatically switches on at night and then shuts off when the sun rises. In fact you can use this circuit to make any type of automatic night light. In This article […] - [1800 Watt Voltage Boost Converter](https://ethcircuits.com/1800-watt-constant-voltage-boost-converter-review/): 1800 Watt Constant Voltage Boost Converter Looking for 1800w boost converter? This boost converter has high efficiency, long service life and low power consumption. High quality boost converter with low price. You can use this boost converter for high current . Here you can find genuine review about 1800 watt Constant Voltage Boost Converter.   1800 watt Constant Voltage Boost Converter Specification Input voltage: DC10-60V Input current: 10-30V input voltage, maximum current 30A                          31-60V input voltage, maximum current 25A Static working current: 15mA (12V liters 20V, the higher the […] - [DC TO DC Converter Circuit with IC555](https://ethcircuits.com/dc-to-dc-converter-circuit-diagram-with-555-boost/): DC To DC Converter Circuit Diagram With IC 555 In this article, we design a dc to dc converter circuit diagram with ic 555 and MOSFET that can supply high voltage at the Output than its Input. This boost converter circuit operates from 5V to 12V and can generate variable voltages up to 50V. Let’s know how Voltage Booster circuit works. Everything is explained in this article with the help of video What is a Voltage Booster Circuit Voltage Booster Circuit is a dc to dc voltage converter that always has a higher output voltage than input and a lower output […] - [Arduino Finger Print Scanner](https://ethcircuits.com/arduino-fingerprint-scanner-with-code/): Arduino Fingerprint Scanner / Sensor With Code Hello guys, welcome again to some other Arduino tutorial. In today’s tutorial, We will make Arduino Fingerprint Scanner with Arduino UNO, and we are able to likely make a easy sensible instance of this sensor, so let’s analyze together! What is FingerPrint Scanner Module The fingerprint sensor is one type of sensor that’s utilized in a fingerprint detection tool. These gadgets are particularly in-built withinside the fingerprint detection module and it’s far used for laptop protection.  The essential functions of this tool particularly encompass accuracy, higher performance, robustness primarily based totally on one […] - [Over Voltage Protection For AC Appliances](https://ethcircuits.com/over-voltage-protection-circuit-diagram/): Over Voltage Protection Circuit Diagram For AC Appliances Mains 220V This circuit is a very useful auto-cut off circuit to the safety of any electric or electronics equipment from high voltage. This is very simple and easy circuit. This circuit automatically cuts the current supply to any appliance from the input circuit. And when the voltage decreased at a normal level then automatic on the supply.  Over Voltage Protection Circuit Diagram This is very easy circuit I used only a few components for this like BC547 transistor, Relay and some other components check circuit below Parts List Transistor BC547 ( […] - [Battery Capacity Tester Circuit](https://ethcircuits.com/battery-capacity-tester-constant-current-load/): Battery Capacity Tester | Constant Current Load Circuit | Dummy Load I’ll show you how to make a simple adjustable constant current load in this small project. This system is useful for evaluating the power of Chinese Li-Ion batteries. You may also use a load to assess how stable your power supply is. Dummy Load Circuit Diagram Parts List For Battery Capacity Tester Circuit IC LM358 1pc Q1 Mosfet IRFZ44N VR Variable Resistor 500k R1 Resistor 1 ohm 5watt PCB Layout For Constant Current Load You can download this paper and print on A4 paper and cut any color PCB […] - [DIY EMF Meter](https://ethcircuits.com/diy-emf-meter-or-ghost-detector-circuit-diagram/): DIY EMF ( Electromagnetic Field) Meter, Ghost Detector There are two types of currents with which the electromagnetic fields are created – direct current (DC) and alternating current (AC). The EMF meters measure the electromagnetic fields that are produced by AC. To create it more clearly, it’s the type of current that surges through electrical devices we use every day, such as the TV and microwave. The main feature of the alternating current that creates the electromagnetic field that the EMF measures are that this type of current moves in two directions up to fifty to sixty times in a […] - [How To Make an Inductor](https://ethcircuits.com/what-is-inductor-symbol-types-formula-permeability/): What is Inductor | Inductor Symbol | Types of Inductors | Inductor Formula | Relative Magnetic Permeability In this article I will try to explain everything about inductor:- what is inductor, inductor Symbol, Inductor Formula, Types of Inductor, Relative magnetic permeability, inductor uses, what is inductance and many other things about inductor What is Inductor The Inductor is perhaps the simplest of all electronic components, constructed much like a resistor – a simple length of wire that is coiled up. Inductors are typically found in a PCB assembly as they are an important part of an electrical structure. However, here, resistance […] - [Battery Under Voltage Protection Circuit](https://ethcircuits.com/battery-under-voltage-protection-circuit/): What is Under Voltage Protection Circuit This article introduces the concept of deep discharging in batteries. Deep discharging has the potential to destroy the batteries. With a simple circuit you can protect your battery. This is an under voltage Protection Circuit for 12V Battery that shuts off the load when the voltage drops below a set value. When the battery voltage rises to a set value, the module automatically restarts the load. Under Voltage Protection Circuit Diagram Here is a very simple Battery Deep Discharge protection circuit with only a few components. You can design your own PCB to make […] - [Buck Converter Adjustable 3Amp](https://ethcircuits.com/buck-converter-circuit-diagram-dc-to-dc-converter/): Buck Converter Circuit Diagram | DC To DC Step Down Converter Circuit The LM2576 Is a Very useful regulator and low-cost integrated circuits that provide all the active functions for a step-down (buck) switching regulator. In This article I will explain about very easy buck converter circuit diagram ( dc to dc step down converter) The ICs are capable of driving a 3A load with excellent line and load regulation. The devices are available in both adjustable output and in fixed output voltage versions (3.3V, 5V, 12V and 15V). The LM2576 requires only a minimum number of external components, in […] - [DIY BMS Circuit](https://ethcircuits.com/3s-4s-5s-diy-bms-circuit-for-lithium-ion-batteries/): What is BMS Circuit ( Battery Management System Lithium ion) Battery management systems may be as simple as electronics to measure voltage and stop charging when the desired voltage is reached. At that point, they might shut down the power flow; in the event of irregular or dangerous conditions they might issue an alarm.  Lithium-ion batteries are now very popular. Now-a-Days these batteries are used in maximum devices. But unlike other types of batteries, for example,  lead-acid or nickel batteries, lithium-ion batteries are very demanding for the charger parameters. Battery management system lithium ion batteries (Like 18650 Batteries) is very […] - [5 in 1 Gadget](https://ethcircuits.com/diy-5-in-1-gadget/): Diy 5 in 1 Gadget:- Inverter 220v, Emergency Light, Power bank, Torch,Variable Power supply Hello Friends, This is a very interesting Diy 5 in 1 gadget for you. You can carry this gadget anywhere with you. Features of this gadget as below 220 Volt Inverter Variable Power Supply 4V-27V Power Bank For Mobile Charging Emergency Light with very good Backup High Brightness Torch You can use this circuit as a mini inverter its make 220V AC From 3.7V DC Even this project can be made with scrap electronic-components available at your own home. Inverters are used to convert DC current(the […] - [Remote Control Light Bulb](https://ethcircuits.com/remote-control-light-bulb/): Remote Control Light Bulb Circuit Diagram With the help of this article you can make a Remote Control Light Bulb From your old used LED bulb. I used 18pc 1Watt 3.2 volt LED to make this Remote Control LED Bulb and used Simple RGB Strip Controller to operate this LED Bulb with Remote Control. You adjust the light from 3 watt to 18 watt with the help of remote Connection Diagram For Remote Control Light Bulb With RGB Strip Controller This is a very simple Remote Control Light Bulb Circuit Diagram. I shown all components in there original image so […] - [Emergency LED Bulb Circuit](https://ethcircuits.com/emergency-led-bulb-circuit/): Emergency LED Bulb Circuit Diagram With the help of this circuit you can change any LED Bulb into Emergency LED Bulb. This is a very simple emergency led bulb circuit diagram. Backup time of this led bulb is 4-5 Hr. We are using 3 1Watt White LED with this circuit normally 1 watt led is 3.2V and Current 300ma maximum. with help of this circuit all 3 LED’s will consume 500-600ma so 18650battery(2650mah) will give 4-5hr backup LED PCB BOARDS MANUFACTURER AND ASSEMBLIES How Emergency LED Bulb Circuit Works It works like the general emergency light; it fixtures are used […] - [Battery Charging Time & Battery Charging Current](https://ethcircuits.com/battery-charging-time-battery-charging-current/): Battery Charging Time & Battery Charging Current A battery is an electrical storage device. Batteries do not make electricity, they store it, just as a water tank stores water for future use. As chemicals in the battery change, electrical energy is stored or released. In rechargeable batteries, this process can be repeated many times. Batteries are not 100% efficient – some energy is lost as heat and chemical reactions when charging and discharging Battery Types Lead-acid batteries It consists of lead-acid which is very cheap and seen mostly in cars and vehicles to power the lighting systems in it. These […] - [220v AC LED Chaser Circuit](https://ethcircuits.com/220-v-ac-led-chaser-circuit-diagram/): 220 V AC LED Chaser Circuit Light Chaser is a circuit where 1 LED light is switched on after another LED. That’s mean Leds are chasing each other. This is Very easy 220 V AC LED Chaser Circuit Diagram. This 3 Channel Light Chaser Circuit is mainly made of 2 ICs, 555 timer IC & 4017 Counter IC. Using these components we can decorate with forward & reverse wave only. You can modify this circuit from 3 Channel to 10 Channel its very easy i will explain every thing to you in this ( 220 V AC LED Chaser Circuit […] - [Automatic Battery Charger Circuit With IC555](https://ethcircuits.com/automatic-12v-portable-car-battery-charger-circuit/): Automatic 12v Portable Car Battery Charger Circuit Diagram This is the very simple Automatic 12v Portable Car Battery Charger Circuit Diagram. The IC 555 is so versatile, that it can be considered the single-chip solution for all circuit application needs. No doubt it’s been utilized here too for yet another useful application. A single IC 555, and a handful of passive component is all that’s needed for making this outstanding, fully automatic lead acid battery charger circuit. The proposed design will automatically sense and keep the attached battery up to date. Automatic 12v Portable Car Battery Charger Circuit Diagram The […] - [IR Receiver Arduino Uno & IR Remote Decoder](https://ethcircuits.com/ir-receiver-arduino-uno-ir-remote-decoder/): IR Receiver Arduino Uno & IR Remote Decoder Full Detail This is very interesting article with the help of this article first you can learn about IR Remote decoder using an Arduino and IR receiver. This tutorial will cover everything from setting up the software to using the IR Receiver and decoding the signals . These signals can be used later for multiple projects including IR Remote control Robot , Home automation and similar IR controlled projects. IR Sensor Connection For IR Receiver Arduino UNO I am using TSOP1738 With Arduino UNO you can also use TSOP1838. 1st pin of […] - [Rechargeable Wireless Mouse and Keyboard](https://ethcircuits.com/rechargeable-wireless-mouse-and-keyboard/): Rechargeable Wireless Mouse and Keyboard Friends, when you are working at desktop or laptop and suddenly mouse or keyboard stopped working. We hate this type of situation. You know it is because of batteries but at the same time you can’t arrange batteries and it’s not good to buy batteries again and again.  So in this article, I will explain how you can convert your normal wireless mouse and keyboard into rechargeable wireless mouse and keyboard and never have to purchase batteries for it ever again. Working Voltage & Current For Rechargeable wireless mouse and keyboard Mostly all wireless Mouse and […] - [Short Circuit Protection](https://ethcircuits.com/short-circuit-protection-circuit-diagram/): What is Short Circuit Protection Circuit Short circuit protection Circuit is often a desirable feature to add to power amplifiers or power supplies, for both safety concerns and protection of circuitry. A common example of short-circuit is when positive and negative terminal of a battery or Power Supply are connected together with a low-resistance conductor, like a wire. In this condition, battery or Power supply can set to fire and can even explode.  To avoid this short circuit condition, Short-circuit Protection Circuit is used. Short-circuit Protection Circuit will divert the flow of current or break the contact between the circuit and the […] - [Arduino Temperature Sensor](https://ethcircuits.com/arduino-temperature-sensor/): How To make Arduino Temperature Sensor In this article, I will explain how to interface LM35 and Arduino along with its program. Once we successfully interface arduino and lm35, we will go on to build a temperature display using arduino and a 16×2 LCD module which constantly monitors temperature around the measurement field/range of LM35 and displays the same on LCD module. So lets get to building the Arduino Temperature Sensor. We are using Arduino Uno as our board and LM35 can be connected to arduino as shown in circuit diagram. LM35 Introduction and Pinout LM35 is an analog, linear temperature […] - [Arduino Blinking LED Code](https://ethcircuits.com/arduino-blinking-led-code/): Arduino Blinking LED Code This example (Arduino Blinking LED Code) uses the built-in LED that most Arduino and Genuino boards have. This LED is connected to a digital pin and its number may vary from board type to board type. You Can just Copy this code and paste it in arduino software see my video for detail. If you want to lit an external LED with this sketch, you need to build this circuit, where you connect one end of the resistor to the output digital pin. Connect the long leg of the LED (the positive leg, called the anode) […] - [How To Make Timer Circuit With IC 4060](https://ethcircuits.com/simple-timer-circuit-diagram/): Best Timer Circuit Diagram With IC 4060 In this post we learn how to build a simple yet accurate timer circuit using the IC 4060 and some ordinary passive components. Timers were used in many applications in our day to day life. One can see the timers in washing machines,micro ovens etc. These devices uses timer to switch the loads for particular amount of time. You can use this circuit for charging Mobile phone for a specified predetermined length of time. This timer circuit could be yet again initiated simply by pressing the push button for the next charging cycle. Simple Timer Circuit Diagram The […] - [Li-Ion Battery Charger Auto Cut-off](https://ethcircuits.com/simple-li-ion-battery-charger-circuit-diagram/): Simple Li-ion Battery Charger Circuit Diagram With IC 358 3.7V Li-ion battery circuit using LM358. it’s a simple circuit that will charge a Li-ion battery properly. Has 2 LEDs, a monitor and a full charge indicator. In this article, you can learn How to make a simple automatic lithium-ion battery charger circuit diagram with auto-cut, current control features. Simple Li-ion Battery Charger Circuit Diagram Working Once the circuit is assembled and set up, the below shown design can be used for charging any spare Li-Ion Battery through the 5V Mobile Charger or USB port. First connect the battery across the […] - [Delay Timer Circuit Diagram](https://ethcircuits.com/simple-on-delay-timer-circuit-diagram/): What Is Off Delay Timer Circuit ? Delay timer is a device which is used to take some duration before switch on the main input supply to any equipment . … When switch on the circuit then capacitor start charging and amount of power go to the capacitor till charge, after some seconds it get fully charged Hello Friends, In this article, I will explain how to control AC appliances ON-OFF time using the The simple delay timer circuit is similar and has just a few more components. So, Let’s Starts with the materials required and diagram followed by explanation and video for […] - [FM Transmitter Circuit Diagram](https://ethcircuits.com/fm-transmitter-circuit-diagram/): What Is FM Transmitter? A personal FM transmitter is a low-power FM radio transmitter that broadcasts a signal from a portable audio device (such as an MP3 player) to a standard FM radio. … They are often used in cars but may also be in fixed locations such as broadcasting from a computer sound card throughout a building. FM TRANSMITTERS. They can be called SPY TRANSMITTERS, FM BUGS, or a number of other interesting names. All do the same thing.  They transmit on the FM band in the range 88MHz to 108MHz. This circuit is the best you can get with one transistor. This Is Very Long Range […] - [Automatic Battery Charger for all Batteries](https://ethcircuits.com/automatic-battery-charger/): Automatic Battery Charger Circuit for 4v-6v-9v-12v This battery charger circuit provides the Automatic cut off the facility when the battery gets fully charged. Before the use of this circuit, you need to adjust the Cut off voltage range for the auto cut. This adjustment is done by the 10k preset, and a multimeter connected with the output terminals that go to the battery. This voltage range can be set by using any 4v to 15v DC supply which connects the terminals which go to the battery. And move the preset till the green led ON. Once the auto cut voltage […] - [Bench Power Supply/Battery Charger](https://ethcircuits.com/0-30v-0-10a-variable-power-supply-circuit/): 0-30V 0-10A Variable Power Supply Circuit Diagram | Adjustable Variable Power In This Article I have given you a very simple 0-30V 0-10A Variable Power Supply Circuit Diagram | Adjustable Power Supply Circuit Diagram . With the help of this Circuit u can easily make a very cheaper Bench Power supply at your home. Every lab needs to be equipped with essential equipment. Out of all I would say power supply is most important since it powers up the projects.  Batteries, DC adapters can do fine job but as demand grows and project gets bigger a professional and adjustable power […] - [Water Pump Auto on/off with Water Level Indicator](https://ethcircuits.com/automatic-water-pump-controller-circuit-diagram/): Automatic Water Pump Controller With Water Level Indicator I am using two different circuits for this. I made the Water Level Indicator circuit with IC ULN 2003.2nd circuit for Pump Control made with IC555. This circuit will off the pump when Tank is Full and you set up the Water Level where you want to ON the pump again Automatic Water Pump Controller Circuit Diagram 1.5v to 220V inverter circuit with Mobile charger transformer. In this project, we are going to make a very easy & simple low power inverter.  We have used various electronic-components to make this easy & […] - [Electric Shock Gloves](https://ethcircuits.com/electric-shock-gloves-circuit-diagram/): Electric shock Gloves Circuit Disclaimer: You should only use this for self-defense purposes and not for offensive acts. Especially don’t use it on friendly animals like pets, that’s just messed up. I am not responsible for vigilante use either (you know its awesome, but still illegal). You can test it on yourself just to see if it works if you want to though… MAKE AT YOUR OWN RISK!   Electric Shock Gloves Circuit Diagram For Input, You can use 3.7 volts any battery like mobile battery/18650 Battery or you can use 2 AA or AAA 1.5volt Battery in series. if you […] - [Soil Moisture Sensor](https://ethcircuits.com/soil-moisture-sensor-circuit-diagram/): Soil Moisture Sensor Circuit A variety of humidity tester circuits are available, but this is a circuit that is as simple as possible. Using only a transistor, LED and resistor, this Simple Soil Moisture sensor circuit can be used to check the humidity level of materials like soil, paper, etc. In this circuit, we have used an NPN transistor to detect soil moisture.  This is a very simple and interesting circuit for electronics lovers. This Soil moisture sensor circuit can be used in many applications like Automatic plant irrigation system, Greenhouse projects, etc. The circuit does not have a current-limiting resistor because the base […] - [Smallest inverter 3.7 V to 220V](https://ethcircuits.com/3-7v-to-220v-inverter-circuit-diagram/): 3.7v To 220v Inverter Circuit Diagram 3.7v to 220V inverter circuit diagram with Mobile charger transformer. In this project, we are going to make a very easy & simple low power inverter.  We have used various electronic-components to make this easy & simple project.  Even this project can be made with scrap electronic-components available at your own home. Inverters are used to convert DC current(the word DC stands for direct current) into AC current(the term AC stands for Alternative current).  An inverter circuit is used to alter/change the DC power to AC power. You can make this electronic-project without any […] - [Li-Fi Audio Transmission](https://ethcircuits.com/li-fi-audio-transmission-project/): What Is Li-Fi Audio Transmission? Hello Friends! Today we are going to perform an experiment on Li-Fi. First I’m going to tell you in brief about the Li-Fi project. Li-Fi (short for light fidelity) is a wireless communication technology which utilizes light to transmit data and position between devices. The term was first introduced by Harald Haas during a 2011 TEDGlobal talk in Edinburgh. In technical terms, the Li-Fi project is a light communication system that is capable of transmitting data at high speeds over visible light, ultraviolet, and infrared spectrums. In its present state, only LED lamps can be used for the transmission of visible light. In terms of its end […] - [Water Level Indicator](https://ethcircuits.com/water-level-indicator-with-alarm-circuit-diagram/): What Is Water Level Indicator ? The water level indicator circuit is defined as a system that gets information about the water level in tanks. By using the water level indicator with alarm circuit diagram we can overcome the overflow of water from the tankers. A water level indicator alarm circuit is a system that relays information back to a control panel to indicate whether a body of water has a high or low water level.  Some water level indicators use a combination of probe sensors or float switches to sense water levels. “The Water Level Indicator for water tank […] - [Blown Fuse Indicator](https://ethcircuits.com/blown-fuse-indicator/): Blown Fuse Indicator Circuit Diagram A fuse is an electrical safety device that provides overcurrent protection of an electrical circuit. Its essential component is a metal wire or strip that melts when too much current flows through it, thereby interrupting the current. It is a sacrificial device; once the fuse is blown, the circuit is open and must be replaced or rewired, depending on the type. In general, when the device signals a power failure, the cause may just be a blown fuse. Here is a blown fuse indicator circuit that shows the fuse status via LEDs. This compact circuit […] - [Clap Switch](https://ethcircuits.com/clap-switch-circuit/): What Is Clap Switch ? Clap switch is an interesting hobby circuit which turns on the lights with a clap sound. Condenser Mic basically converts sound energy into electrical energy, that in turns used to trigger IC 4017, through a Transistor.This is the Simplest Clap Switch Circuit diagram. Clap Switch Circuit Diagram Using IC 4017 Parts List For Clap Switch Circuit IC 4017 Transistor BC 547 MIC Capacitor 47uf/25v Resistor 10k, 1M, 100k, 470ohm 1/4watt Battery 9V How To Make Magic Tester Click Here PCB Layout Clap Switch Circuit Diagram 220V How To Make Clap Switch Circuit Watch This Video - [Electronics Dice](https://ethcircuits.com/digital-dice-circuit-diagram/): Digital Dice Circuit Hello Guys, today i will show you how to make digital dice circuit diagram using 555 timer and using ic 4017. For playing that when we turn on power supply to circuit. The LED will glow at either portion, since 1-6 LED, as place of real dice.  When we press switch, all LED(7 LED) will flash jointly, with high-speed up. But whenwe release switch, LEDs will stop flash, then either led glow.  Maybe since 1-6LEDs as form of the dice. In pressing switch each time, it will not glow at same position always. It will light at any point […] - [Battery Level Indicator for any Battery](https://ethcircuits.com/best-battery-level-indicator-circuit-diagram/): Best Battery Level Indicator Circuit Diagram Hello, Friends, This is the Best battery level indicator Circuit Diagram. You can use this circuit with any battery 3.7v/4v/6v/9v/12v etc.. you can adjust VR1-VR4 according to voltage Level. See the full video for detail. Explanation of Battery Level Indicator Circuit Diagram With LM324 A good quality battery monitor can also be made using a LM324 IC. LM324 independent low power operational amplifiers. In this circuit we have used all the four operational amplifiers, each op amp is working separately as a comparator to monitor a certain voltage point set by the 10K variable resistors. […] - [Tesla coil](https://ethcircuits.com/tesla-coil-circuit-diagram/): What Is Tesla Coil ? The Tesla Coil we’ve got here is on the smaller side, producing a few hundred thousand volts of electricity. It’s pretty neat because it can actually light up a fluorescent bulb that you hold in your hand! Now, let’s dive into how the Tesla coil circuit works. When you bring a fluorescent light bulb near the Tesla coil, it lights up and sparks, even without being plugged into anything! Here’s a bit of quick physics for you: the Tesla coil creates an electric field that kind of pushes electrons through the light bulb. It’s like […] - [Electronic Password Door Lock](https://ethcircuits.com/digital-password-door-lock-circuit-diagram/): What Is Digital Password Door Lock ? This Digital password door lock circuit diagram is a key code lock switch circuit, type of electronic circuit. To replace a conventional normal key switch, without inserts keys. But you can press the number code instead of unlockingkeys. We do not need to carry a load key, and do not worry about your keys arelost. We just must remember to commit to code only. Digital Password Door Lock Circuit Diagram Once the circuit is assembled and set up, the below shown design can be used for charging any spare Li-Ion Battery through the 5V Mobile Charger […] - [Induction Heater & Soldering Iron](https://ethcircuits.com/12v-induction-heater-circuit-diagram/): What is Induction Heating ? Induction heating is the process of heating an electrically conducting object by electromagnetic induction, through heat generated in the object by eddy currents.  An induction heater consists of an electromagnet and an electronic oscillator that passes a high-frequency alternating current through the electromagnet. You will get full explanation about 12v induction heater Circuit Diagram below and with only a few modifications we can use same circuit for a Induction Soldering Iron ( 2nd Circuit ). you can watch video for both the circuits for details. 12v Induction Heater Circuit Diagram Download This Circuit Parts List […] - [Battery Level Indicator](https://ethcircuits.com/12-volt-battery-level-indicator-circuit-diagram/): What is a Battery Level Indicator? In this project, I will show you how to design a simple Battery Level Indicator Circuit using easily available components. Battery level indicator indicates the status of the battery just by glowing LED’s.  This article explains you how design battery level indicator. So by using this circuit, we can increase the lifetime of battery. 12 Volt Battery Level Indicator Circuit Diagram Here is a Simple 12 Volt Battery Level Indicator Circuit Diagram. The terminal Voltage of the battery is indicated through four-level LED indicators. The nominal terminal voltage of a Lead Acid battery is 13.8 volts […] - [Wireless Tester / AC Line Tester](https://ethcircuits.com/wireless-tester-ac-line-tester/): Wireless Tester Circuit / AC Line Tester Turn Your Tester into Wireless Tester Parts List Any General purpose NPN Transistor like BC547/548, 2n2222, C945 LED Red 3mm Small 1.5V 2 or 3 Batteries L1 not compulsory  - [Magic / Continuity Tester](https://ethcircuits.com/how-to-make-a-magic-continuity-tester-at-home/): How To Make A Magic / Continuity Tester At Home Friends, In This article i will show you how to make a magic / continuity tester at home .with the help of this circuit you can change your Simple tester into a magic tester or continuity tester. With the help of this circuit you can check continuity and other many components. How to check components please see video at same page  Magic Tester / Continuity tester Circuit Download This Circuit Daigram Parts List  Transistor Bc547, BC557 Resistor 1M(1pc), 10k (1pc) all r 1/4 Watt LED(1Pc) Any Type Of Tester Buy […] - [PIR SENSOR LIGHT](https://ethcircuits.com/best-motion-sensor-light-switch-circuit-diagram/): Best Motion Sensor Light Switch Circuit Diagram In This Circuit PIR (Passive infrared ) Motion Sensor Is used which is used as a motion Detector. When Any Person, Animal Or Any Object Comes In The Range of the sensor. then Automatic Light Switched on. This Can Also used in Automatic Room Light, When Any Person Enter in The Room Then Light Automatic Turn on and Turn off after fixed time. This is the Best motion sensor light switch circuit diagram you can make this with a few components . Watch Video for Detail Best Motion Sensor Light Switch Circuit Diagram Use […] - [Visitor/People/Object Counter Circuit/Project](https://ethcircuits.com/visitor-people-object-counter-circuit-project/) - [Auto Off Staircase Light](https://ethcircuits.com/automatic-stair-lights/): Auto Off Staircase Light Circuit Diagram Friends this is very easy circuit for automatic stair lights , light will auto off after some time . Actually this is a simple delay timer circuit based on transistor BC547 if you want to light for extra time use 2200uf capacitor instead 1000uf This circuit diagram constructed by using simple and easily available components. The bulb is connected between phase line and relay N/O contact, the Pole terminal of relay is connected to the Neutral line of AC supply. Here 230V AC primary to 12V AC 500mA secondary stepdown transformer is used. Parts […] - [LED Fade Effect Circuit](https://ethcircuits.com/simple-fading-led-effect-circuit-diagram/): Fading LED Effect Circuit Diagram This is very Simple Fading LED Effect Circuit Diagram, 555 has been used in Astable mode and a transistor is used to amplify the current. In Astable mode 555 IC oscillate at a particular frequency (depending on RC components), means output at PIN 3 goes HIGH and LOW periodically. Fading LED Effect Circuit Diagram Working So in our circuit whenever the output at PIN 3 goes HIGH, the transistor starts working as an amplifier, and amplifies the current. This current goes into the capacitor and charge the capacitor to the 2/3 Vcc (555 IC principal), […] - [Simple LED Light Projects](https://ethcircuits.com/simple-led-light-projects/): Simple LED Light Projects In This article I will explain about Simple LED Light Projects. You  can make at home. These circuits and projects have already been tested and published along with circuit diagram, schematics, and a detailed working description for each one of them. For details you can watch my video. Circuit Diagram LED Light Projects This is very simple circuit diagram with the help of this circuit you can get 40-100 MA current depends on Capacitor C1 so no need any heatsink with LED Parts List Diode IN4007 4 pc, Capacitor 474/250V or 105/400V, C2-10uf To 100uf/50V, Resistor […] - [Solar Light/Garden Light](https://ethcircuits.com/solar-garden-light-circuit-diagram/): Solar Garden Light Circuit Diagram This is very easy Solar Garden Light Circuit Diagram with least parts the best arrangement is that is totally auto and the Solar board goes about as a light identifier. Switches the Lamp off at Dawn, charges the battery during daytime and switches the LED lights ON at sunset. The sun based board must give 3V and 100mA. Accepting a 2.4V/800mAh battery the charging will be finished in 8 hours. 6 LEDs 60 mA/hour furnishing a 13 hours brightening with light degrees of 30 lumens to 50 lumens. With 10 LEDs the light force will be 60 to […] - [Temperature Controlled Fan](https://ethcircuits.com/temperature-controlled-fan-circuit-diagram/): Temperature Controlled Fan Circuit Diagram In this Article, I will show you to how to make temperature controlled fan circuit diagram utilizing LM35 Temperature Sensor. This circuit can be utilized to naturally turn ON a switch when the ideal temperature is recognized. This Temperature Controlled Fan Circuit is a gadget or circuit, which is initiated dependent on the Temperature. Any Temperature Controlled Switch comprises of three sections: Sensor, fundamental control unit and the switch. How Temperature Controlled Fan Circuit Diagram Works The picture shown below is a basic Temperature Controlled fan Circuit utilizing LM35 Temperature Sensor, LM358 Op Amp, and […] - [High AMP Adj. Voltage Booster](https://ethcircuits.com/dc-to-dc-boost-converter-circuit-diagram-2/): Dc To Dc Boost Converter Circuit It requires only a few external components. The IC consists of many good features and functions. Built inside its circuitry which are, built-in 3A NPN switch at output, 52 kHz oscillator, current limit function, automatic overheat shutdown, automatic over-voltage shutdown etc.  The input voltage of the dc to dc boost converter circuit diagram is 3.5V to 40V DC. You can adjust the output voltage with a 100K variable resistor. The max output voltage of the circuit is 60V DC.  You can adjust the output voltage changing input supply and with 100k variable control. The […] - [Automatic Street Light Controller](https://ethcircuits.com/automatic-street-light-controller/): Automatic Street Light Controller Circuit This circuit automatically turn on at night and turn off at day time. This is very effective, small and cheap circuit could be designed with ease. You can check also other circuit direct on 220 volt Parts List IC555 LDR, LED Transistor BC547/548 Diode IN4007 Resistor 1mega variable, 1k, 220ohm, Capacitor 100uf/25volt, .01 or .1uf(103 or 104) Relay 12 volt . Click Here To Convert Simple Tester Into Magic Tester Automatic Street Light Controller Circuit Diagram For More Details Watch This Video - [1.5V DC To 220V AC Inverter](https://ethcircuits.com/1-5-v-dc-to-220-v-ac-inverter-circuit-diagram/): 1.5 V DC To 220 V AC Inverter Circuit Diagram 1.5 v DC to 220 v AC inverter circuit Diagram with Mobile charger transformer. In this Project, we are going to make a very easy & simple low power inverter. Even this project can be made with scrap electronic-components available at your own home.  Inverters are used to convert DC current(the word DC stands for direct current) into AC current(the term AC stands for Alternative current). An inverter circuit is used to alter/change the DC power to AC power. You can make this electronic-project without any problem or hesitation. This circuit for experiment purpose […] - [1.5 V To 5V Converter](https://ethcircuits.com/boost-converter-circuit/): How To Make 1.5 V To 5 V Boost Converter Circuit ? Here is an interesting circuit of 1.5 V to 5 V Boost converter Circuit to generate stable and secure 5V DC (at 500mA max) from an ordinary 1.5V AA sized cell. At the heart of this circuit is transistor 2n2222 you can use S9013.  This charger circuit will step up the voltage from 1.5V to 5V DC. The circuit uses only an AA or AAA 1.5v battery (1V to 2.4V).  The charger is composed of simple oscillator, a rectifier, and voltage regulator.  The feedback winding F is composed 5 turns […] - [Variable/Adjustable Power Supply](https://ethcircuits.com/variable-power-supply/): Variable Power Supply Circuit LM317 is a three terminal voltage regulator IC from National Semiconductors. The IC is capable of delivering up to 1A of output current.  Input voltage can be up to 40V and output voltage can be adjusted from 1.2V to 37V. You can make this circuit because this is very easy to make with only few components. See vedio for detail if you need any help comment.  A classic voltage regulator circuit using LM317 is shown above. Input voltage is fed to the pin3 (v in) of the IC and regulated output voltage is available from pin […] - [Blinking LED Circuit With IC555](https://ethcircuits.com/blinking-led-circuit-diagram-with-ic555/): Blinking Led Circuit With IC 555 Hello friends this is very simple circuit for LED blinking or Flashing. You can make Blinking Led circuit with ic555 (Timer IC) and some other components if want slow speed for blinking change 10uf capacitor and use 47uf or 100uf and you can also control the speed using 1mega variable control instead 33k resistor Blinking Led Circuit Diagram With Ic 555 How to make Clap Switch Click Here  Parts List Blinking LED Circuit 555 IC555 Resistor R1-10k, R2-33k or use variable control for slow or fast speed, R3-470ohm To 1K Capacitor C1-10uf/16V LED How To make This Circuit […] - [Emergency Mobile Charger](https://ethcircuits.com/9v-battery-to-mobile-charger-circuit-diagram/): 9v Battery To Mobile Charger Circuit Hello friends with this 9v to battery to mobile charger circuit you can easily charge your mobile. This circuit gives you 5-volt output with 300ma to 500ma current. Because 9-volt battery easily available and you can charge your mobile any time anywhere.  9v Battery To Mobile Charger Circuit Diagram How To Make Tesla Coil Click Here Parts List For Mobile Charger Circuit Diagram Parts List :- Voltage Regulator 7805 1pc Resistor 470 ohm to 1k 1pc LED 3mm 1pc USB Female Port Battery 9 volt Buy Improved Version Module Kit For arduino Click Here […] - [Emergency charger With 9V Battery](https://ethcircuits.com/emergency-charger-with-9v-battery/) - [12 V TO 220 V INVERTER](https://ethcircuits.com/12-volt-to-220-volt-inverter-circuit-diagram/): 12 Volt To 220 Volt Inverter Circuit There may be a huge number of inverter circuits available over the internet and electronic magazines. But this is the easiest and very effective circuit Diagram. Because this 12 volt to 220 volt inverter circuit diagram is made by very few components. The functioning of this circuit is rather unique and different from the normal inverters which involve discrete oscillator stage for powering the transistors. However here the two sections or the two arms of the circuit operate in a regenerative manner. 1.5v to 220V inverter circuit with a Mobile charger transformer. In this project, […] - [HIGH POWER DIMMER 10000 WATT](https://ethcircuits.com/high-wattage-dimmer-switch-circuit/): High Wattage Dimmer switch Circuit Upto 10000 watt This is a simple AC TRIAC dimmer circuit. You can use this circuit upto 10000watt only change the Triac of this circuit. If the TRIAC is a high temperature. It should be held with a large heat sink. With The help of this article you can make High Wattage Dimmer Switch Circuit at Home. How This Ac Dimmer Circuit Works The DIAC(Diode AC bi-directional switch) is a kind of diode. It switches AC voltage or trigger to a gate of the TRIAC. Adjust  VR to Adjust the speed or Brightness of Load. We […] - [Buck Converter Circuit LM2575](https://ethcircuits.com/buck-converter-circuit-lm2575/): How To Make a Buck Converter Circuit With IC LM2575 ? The LM2575 circuit is a simple step down dc regulated switching IC that can use to output current of 1A and voltage of 3.3V, 5V, 12V,15V ,and also an adjustable output. Voltage Step Down Converter Circuit With IC LM2575   For the electronics hobbyist tackling switching voltage regulators can be daunting. They can be complex and touchy to build. But this is very simple switching voltage regulators based on 5-pin LM25XX series manufactured by a number of companies.They come in both fixed  Continue Reading…..           Parts List For Step […] - [Wireless Power Transmission](https://ethcircuits.com/wireless-power-transmission-circuit/): How To Make Wireless Power Transmission Circuit ? Wireless Power Transmission technology is old technology and it was demonstrated by “Nikola Telsa” ( Wireless electercity tesla ). Wireless power transmission mainly uses three main systems such as microwaves, solar cells, and resonance.  Microwaves are used in an electrical device to transmit electromagnetic radiation from a source to a receiver. Accurately the name Wireless electricity states that the electrical power can be transferred from a source to a device without using wires.  Basically, it includes two coils they are a transmitter coil & a receiver coil. Where the transmitter coil is powered […] - [Simple LDR Circuit](https://ethcircuits.com/simple-ldr-circuit/) - [Remote Switch without Relay](https://ethcircuits.com/remote-switch-without-relay/) - [Push Switch Circuit](https://ethcircuits.com/push-switch-circuit/) - [Pump Auto On Off Circuit](https://ethcircuits.com/automatic-water-pump-controller-circuit-diagram-2/): Whats Is Automatic Water Pump Controller Circuit Diagram Automatic water Pump controller is a product made to automatically control the water level in water tank, which helps ensure constant water retention in the storage tank. This automatic water level controller is used to automatically fill the water tank when it is empty or below the fixed water level. Automatic water level controller turn on the Pump Motor whenever the water level drops below a certain level and shuts off the motor when the water rises above the set level. Automatic Water Pump Controller Circuit Diagram Click Here To Download This […] - [SIMPLE Light Dimmer Circuit](https://ethcircuits.com/220-v-ac-light-dimmer-circuit-diagram/): What is Light Dimmer / Fan Regulator The light dimmer circuit or fan regulator circuit  is used to control the brightness of the light or the speed of the fan according to our desire. The objective of the circuit is to vary in intensity the brightness of the light bulb or fan speed by using a fixed source. There is no need to replace the bulb with a higher wattage one to do so.  A simple Triac can do the work for you. Triacs are used in this circuit as a dimmer as they are easy to design and control, […] - [High Amp DC Power Supply](https://ethcircuits.com/high-current-dc-power-supply-circuit-diagram/): What Is High Current Dc Power Supply ? As the name implies, high current power supplies can deliver large amounts of current to a load. High current power supplies can be of two basic types: high current linear power supplies, and high current switch mode power supplies. High current linear power supplies consist of an input transformer, full wave rectifier bridge, and dissipative regulator circuit. They have very low ripple, very good regulation, and no switching frequency that can cause unwanted EMI.  High current linear power supplies are larger and heavier than switching power supplies and are less efficient.High current […] - [Emergency Light Circuit](https://ethcircuits.com/automatic-emergency-led-light-circuit-diagram/): Automatic Emergency Led Light Circuit Hello friends this is a very easy  automatic led on off emergency  light circuit. when light gone its automatically on and when light comes it will off and charge your battery slowly (100ma). Automatic Emergency Led Light Circuit Diagram How To Make 12v Induction Heater  Click Here Parts List For Automatic Emergency Led Light Circuit Diagram  Transistor 2n2222 1pc LED 1 Watt 1pc Diode IN4007 2pc Resistor 2.2ohm, 1k 1/4watt Battery 3.7 volt (18650 or any mobile battery)   . Parts List for power supply Diode IN4007 4pc, Zener diode 5 volt 1watt 1pc Capacitor 100uf/16v […] - [DC To DC Stepup Converter](https://ethcircuits.com/dc-to-dc-boost-converter-circuit-diagram/): What Is Dc To Dc Boost converter ? A Dc To Dc boost converter is a DC-to-DC power converter that steps up voltage from its input to its output. It is a class of switched-mode power supply containing at least two semiconductors and at least one energy storage element: a capacitor, inductor, or the two in combination. Dc To Dc Boost Converter Circuit Diagram This DC To DC Boost Converter circuit diagram is made with only a few components. The heart of this circuit is Transistor 2N3055, I used a home made coil in this circuit, for making please see full video […] - [Automatic Cooler Pump](https://ethcircuits.com/automatic-cooler-pump-controller/): How To Make Automatic Cooler Pump Controller Circuit Hey Friends its summer here and temperatures rising as high as 45 degree To 50 degree Celsius coolers are ready for use.  In the Cooler water is carried on from a lower tub to an upper tub for draining it on to a special grass fixed on the walls, now this requires a pump of 50 watts at least and it consumes more energy and water if running continuously. So I design this automatic cooler pump controller circuit or you can say this is a delay auto on-off timer circuit. The second problem is […] - [Component tester](https://ethcircuits.com/simple-continuity-tester-circuit-diagram/): What Is Continuity Tester ? A continuity tester is an item of electrical test equipment used to determine if an electrical path can be established between two points; that is if an electrical circuit can be made. This is simple continuity tester circuit diagram. Simple Continuity Tester Circuit Diagram | Component Tester How To Make Clap Switch Click Here Parts List For Continuity Tester Circuit Parts List:- Transistor BC547/548/2n2222 or any NPN Transistor Diode IN4001-4007 1pc, LED any color Resistor 1k, 100k, 100ohm 1pc each 3volt battery (comos Battery/cell) or 4.5Volt(1.5V*3 BAT) Probes red and Black or you can use wire also How To Make Simple […] - [Capacitor power Supply](https://ethcircuits.com/transformerless-power-supply-circuit-diagram/): What Is Capacitor Power Supply ? A capacitor power supply, also called a capacitive dropper, is a type of power supply that uses the capacitive reactance of a capacitor to reduce the mains voltage to a lower voltage.Capacitor Power Supply also Called As Transformerless power supply. Capacitor Power Supply Limitations There are two important limitations:  First, the high withstanding voltage required of the capacitor, along with the high-capacitance required for a given output current, mean that this type of supply is only practical for low-power applications. (The capacitance needed increases with the current to be drawn; high capacitance mains-voltage capacitors […] - [LED Flasher Circuit on 220 Volt](https://ethcircuits.com/led-flasher-circuit-on-220v-ac/): LED Flasher Circuit on 220 Volt AC Friends this is very simple circuit to flash LED on 220 volt ac directly. In this circuit we will use transistor collector and emitter and leave the base .  If u need more speed for flashing use 220uf capacitor and if you need slow speed use 1000uf or 2200uf capacitor . please see video for detail Parts List For LED Flasher Circuit Parts List:- Transistor BC547 Diode IN4007 , LED Capacitor 470uf/16 or 25 v Resistor 220k and 100 ohm 1/4watt Also Read This Post:- 1 Watt LED on 220 V AC Circuit Diagram Click Here […] - [Dusk To Dawn Light Bulb](https://ethcircuits.com/dusk-to-dawn-light-bulb/): Automatic Night Light Bulbs This circuit automatically turn on at night and turn off at day time. Finally, after searching through numerous circuits the internet, I figured that an effective, small and cheap circuit could be designed with ease. The circuit works on 220v AC It is always advised to take proper care and precaution while working with AC Mains Parts List:- Triac BT136, Diac DB3 LDR Resistor 100k/1watt How To Make Magic Tester Click Here Dusk To Dawn Light Bulb Circuit Diagram https://www.youtube.com/watch?v=SXJH9Lxo4DQhttps://www.youtube.com/watch?v=l3uy3IxkaVg - [12V to 220V Inv 50hz Frq](https://ethcircuits.com/12-v-to-220-v-inverter-circuit-diagram-50-hz/): 12 V To 220 V Inverter Circuit 50 Hz The heart Of this 12 V to 220 v inverter circuit diagram (50 hz) is  timer IC555, This Ic  is used as a switching pulse oscillator. IC 555 configured as Astable Multivibrator to give continuous switching pulse.  Two switching transistors TIP41A (NPN) and TIP42A (PNP) drives the transformer T1 according to the pulse input at the base. 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The following terminology applies to these Terms and Conditions, Privacy Statement and Disclaimer Notice and all Agreements: “Client”, “You” and “Your” refers to […] - [Disclaimer](https://ethcircuits.com/disclaimer/): Disclaimer for ethcircuits.com/ If you require any more information or have any questions about our site’s disclaimer, please feel free to contact us by email at elecntechhub@gmail.com Disclaimers for ethcircuits.com/ All the information on this website – http://ethcircuits.com/ – is published in good faith and for general information purpose only. ethcircuits.com/ does not make any warranties about the completeness, reliability and accuracy of this information. 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The information collected by log files […] - [Make USB Light At Home](https://ethcircuits.com/make-usb-light-at-home/) - [About Us](https://ethcircuits.com/about-us/): ABOUT ETHCIRCUITS ethcircuits.com/ is a portal to free Electronic Circuits / Schematics. All are carefully cross-referenced into a wide range of categories. These categories include amplifiers, power supplies, solar, hobby circuits, etc…. This site includes a collection of circuits designed by JATINDER KHATTER (founder of the website). This site is a vital resource for engineers, hobbyists, students, inventors & consultants. We offer quick solutions to electronic design problems.  Write For Us If you have a good content to share that will inspire our readers, we’d love to hear about it. We welcome guest bloggers of all experience levels and have […] - [Toggel/Touch Switch Circuit](https://ethcircuits.com/touch-switch-circuit-diagram-using-ic-555/): What Is Touch Switch Circuit? A touch switch is a type of switch that only has to be touched by an object to operate. It is used in many lamps and wall switches that have a metal exterior as well as on public computer terminals. A touchscreen includes an array of touch switches on a display. A touch switch is the simplest kind of tactile sensor. Touch Switch Circuit Diagram Using IC 555 Hey Friends its summer here and temperatures rising as high as 45 degree To 50 degree celsius.. coolers are out. In the Cooler water is carried on from a lower tub to an upper tub for […] - [Remote Tester](https://ethcircuits.com/remote-tester/) - [Remote Switch](https://ethcircuits.com/how-to-make-a-remote-control-transmitter-and-receiver/): How To Make a Remote Control Transmitter and Receiver Friends, with the help this article you can learn about How To Make a Remote Control Transmitter and Receiver.  With the help of these circuits you can ON/OFF your home appliances with the help of remote. How To Make a Remote Control Transmitter and Receiver Circuit You can make Remote Control Transmitter and Receiver circuit with the help of these circuit diagrams  IR Remote Control Receiver Circuit Diagram With Relay Remote Control Receiver Circuit Diagram Without Relay This is the same circuit but here we used Triac instead of Relay. If […] - [Contact Us](https://ethcircuits.com/contact-us/): [wpforms id=”2046″] [comment]: # (Generated by Hostinger Tools Plugin)