Anyone can learn how to construct a special type of generator that produces extremely high frequency power which is explained through this article. This allows one to conduct experiments which are not easy with standard power supplies. One benefit of this high frequency electricity is that it is unlikely to shock anyone if they accidentally […]
500 Watt Induction Heater Circuit
This post is for 500 watt induction heater. Here the coil makes a strong magnetic field that changes very quickly. When anyone puts metal in the coil the metal heats up. This happens because of swirling currents in the metal called eddy currents. There is another effect from the metals properties that causes heating but […]
Stun Gun, Taser Gun Circuit
Tasers, also referred to as stuns give a powerful electric shock to stop an attacker. The purpose of this shock is to be frightening and painful not deadly. For a few seconds an attacker may lose control of their muscles due to an unexpected shock. Till that one have time to run. They may fall […]
Illuminate LEDs with 1.5V Battery using Joule Thief Circuit
This is a circuit that can make an LED light up from a dead battery! It works with white, blue and even ultraviolet LEDs and all you need is a battery that is almost empty at least 1.2V. The cool thing is the LED can even light up with just a tiny bit of power […]
Simple 220V SMPS Circuit using One Transistor
This article shows how to build a simple power supply circuit that plugs into the wall outlet 220V and uses only one transistor MJE13005. It does not need any fancy chips or extra parts to control the power. Instead of those parts it uses a special diode and a winding on the transformer to indirectly […]
5 Watt LED Driver Circuit (SMPS)
This article explains how to construct a power supply that uses a wall plug to directly power brilliant LEDs. Though it is specifically designed for white LEDs it can also function with blue, green, red, yellow and even ultraviolet (UV) lights. What is a 5 Watt LED Driver Circuit: A 5 watt light emitting diode […]