This highly versatile, reliable transformerless power supply features a stable, adjustable DC output with a relatively high current of around 110 mA. The pulsating direct voltage provided by rectifier D1—D4 […]
High Power Triac Dimmer Circuit for 1000 watt Loads
This mains AC triac light dimmer circuit can be used for controlling all high watt lamps from 100 watt to 1000 watt through an ordinary potentiometer adjustments. You can also […]
Simple SCR Circuits
In this post we will learn how to build a few SCR applications circuits such as battery charger, code oscillator, rain alarm, automatic night lamp etc. An SCR or a […]
Mains Surge Protector Circuit [Computer Power Strip]
The mains surge suppressor filter explained here is actually a type of passive low-pass filter which has a roll-off frequency of 50 Hz. This unit can be efficiently used as […]
Universal Digital, Programmable Timers Circuits
The MC14541B (or 4541) is a low cost IC that occupies a CMOS timer consisting of a 16-stage binary counter, an internal RC-oscillator circuit and an automatic power-up reset circuit, […]
Variable Tone Generator Circuit using Magnet
Wondering how to build a tone generator circuit whose frequency could be changed or adjusted simply by moving a magnet near its sensor coil? This article will explain exactly how […]