Wireless Charging

Nokia has come up with a “wireless charging” method. They call it a wireless charging but it is just the other way of removing your power pin socket from your phone and getting high attention in media. Not going into the marketing strategies of Nokia wireless charging for Lumia 920 we better look at the technology […]

AC RMS voltage measurement with AVR microcontroller

Hello friend many times the readers are asking for an AC RMS voltage measurement system with AVR microcontroller or any other microcontroller.This task can be divided into two sub tasks. 1)Attenuating Line voltage to the level that can be applied to microcontroller pin. Here is the circuit used to measure AC line voltage (230V,50 Hz) […]

Boost DC-DC converter with Picaxe microcontroller

Here is a Boost circuit made with Picaxe microcontroller that converts 24V from 12V. This is a project based on PWM 100khz signal I got from port2 of a picaxe 8M2 this signal accumulates through a 10kohm resistance the gate of a mosfet irf640, the boost circuit elevates the voltage from 12 to 24VDC Here is a […]

Wireless Power Transfer Project

Wireless Power Transfer was invented by Nikola Tesla. He demonstrated this from his laboratory in Colorado Springs and achieved a transmission distance of over 25 miles. The theory behind this is simple. You take two identical secondary coils, use 1 as the transmitter and one as the receiver. These form a “tuned system”, whereby signals […]


This Genius Devil (warlockr) has been working with a wireless robot that can capture images and transfer it but he needed to drive an emergency bulb and camera mounted on the robot. He did not have any option to create a 12VDC to 120VAC , 60Hz inverter. He has not given much of description of […]

Ignition Coil

This Genius devil (Penguin) has dig out an ignition coil from an old car and is ready to do some madness with the circuit.he has made up to 44kV sparks from the ignition coil.We still remember his previous post about Marx generator where he has generated mind blowing 150kV!!!!If you want to see more about […]

Home made Coilgun

This is really a nice article about home made coil gun.Written by Genius Devil (Penguin) He is fond of high voltages and high currents so can be called man with POWER. (He has already designed a Marx generator that can produce voltage up to 150kV just from simple components) He has made this design with […]