In this post I will comprehensively discuss how to build a high power 1000 watt induction heater circuit using IGBTs which are considered to be the most versatile and powerful switching devices, even superior to mosfets. Induction Heater Working Principle The principle on which induction heating works is very simple to understand. A magnetic field […]
New Circuit Projects
Lamp Outage Detector Circuit for Car Turn Signal
The O.E.M. turn signal flashing units installed in automobiles have two basic functions i.e. Flasher and Lamp outage detection. These flashers are usually built with an 8-pin IC like U2044B, U6432B etc. which are specifically made for automotive flashers. Designed and Written By Abu-Hafss Circuit Operation These flashers normally oscillate at about 1.4Hz. When a […]
TSOP1738 Infrared Sensor IC Datasheet, Pinout, Working
Video showing the Testing of TSOP1738 with 38 kHz Frequency The TSOP17XX series of ICs are infrared sensor devices designed for sensing infrared frequencies only with a specific range of modulated frequency, and interpreting them into a proportionate magnitude of electrical pulses at the output. This is specifically done to make the sensor immune to […]
Automatic Generator Choke Actuator Circuit
In this post I have explained a simple automatic generator choke actuator circuit using a straightforward delay OFF timer circuit and a solenoid device. The circuit was requested by Mr. Bob Perry. Technical Specifications I’m in need of a time delay schematic for the following project. I have an electric generator that I can start by […]
Footstep Activated LED Trouser Light Circuit
In this post I have explained how to transform your ordinary trousers into a chasing LED lit trousers which produces an shooting LED light chasing effect in response to your footstep movement or thumping. The Circuit Concept The proposed foot step activated chasing LED trouser will enable you to decorate any piece of clothing with LEDs […]
3.7 V Li-Ion Battery Charger Circuit with Automatic Cut-off
In this article we study a simple 3.7V li-ion battery charger circuit with auto-cut off, which can be charged from your computer USB port or any other 5 V regulated source. How it Works The circuit can be understood with the help of the following description: The IC LM358 is configured as a comparator. The […]
