A wireless mobile phone battery charger is a device that charges a compatible cellphone or mobile phone placed close to it, through high frequency wireless current transfer, without any physical contact. In this post I have explained how to build a wireless cellphone battery charger circuit for facilitating a cordless cellphone charging without employing a […]
Archives for 2015
Very Simple BLDC Motor Driver Circuits using Back EMF
In this post we investigate what’s a BLDC motor and subsequently I have explained regarding the design of a sensorless BLDC motor driver circuit. BLDC CPU Fans Seen those fast moving fans in CPUs, voltage stabilizers, DVD players, and other similar equipment, which work with utmost efficiency, consuming minimum space, current and yet are able […]
Simple Digital Clock using LM8650 IC Circuit
The digital time clock explained here is a circuit which most electronic amateurs would love to make. You might have heard about digital clocks made from clock ICs such as the popular LM8361, MM5387 etc but these ICs could be today quite obsolete and/or complex to build. Circuit Operation The present design is much easier […]
Rotating Beacon LED Simulator Circuit
In this post I have explained a simple LED flashing beacon circuit which exactly simulates a rotating police beacon light by generating alternating pulses of suddenly rising and fading illumination effect on the connected LED. The idea was requested by Mr. Ankit Agarwal Technical Specifications Can you advice on how to make the following circuit […]
Simple Gate Open/Close Controller Circuit
The simple gate open and close controller circuit is designed to operate the gate through a couple of push buttons manually, it can be also modified for implementing the activation through a remote control. How it Works Referring to the shown, simple gate open, close controller circuit below, we can witness a rather straightforward configuration, […]
Mosquito Killer Circuit with Window Trap
In this post I have explained a simple mosquito electrocution net, or mesh circuit which can be easily built and installed on a home window for blocking and killing an in-surge of mosquitoes. The idea was requested by Mr. Ram. Technical Specifications Please help with any working circuit diagram for Mosquito, Insect Killer using Walton […]