This post explains how to build a simple 12V 200 watt inverter circuit capable pf producing 220V or 120V outpur depending on the transformer used. The figure above shows the […]
Simple PIR Water Sprinkler Circuit
The automatic PIR motion sensor switch circuit will be able to quickly switch on a water sprinkler although it is possible to utilize it as a motion sensor light switch […]
3V to 110/220V Converter Circuit
The proposed 3V to 110V 0r 220V circuit listed below is actually a DC to DC converter having a ordinary 3-0-3V VAC center tapped power transformer rigged in a blocking-oscillator […]
High Current LM317 Power Supply Circuit
The high current LM317 power supply circuit shown down the page makes use of an supplemental winding or possibly a independent transformer to deliver power to the LM317 regulator in […]
Simplest Variable 0-100V Power Supply Circuit
This simplest variable 0-100V power supply circuit will allow the user to get a seamlessly adjustable output voltage, which could e fixed at any desired level. The power supply ca […]
IC 555 Li-Ion Battery Charger Circuit
This IC 555 Li-ion battery charger circuit was build to charge a couple of series Lithium cells (3.6 volts each, 1 Amp Hour capacity). The charger operates by supplying a […]