The post explains a simple to build ultrasonic insect repellent circuit which can be installed in farms and used by the farmers for driving away all sorts of insects, bugs, […]
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How to Make Dog Barking Preventer Circuit using High Frequency Deterance
The discussed circuit is designed to discourage dogs from barking in the selected zone by the generation of a synchronized ultrasonic sound waves in response to a few initial barking […]
Simplest Windmill Generator Circuit
The post explains how to make a simple windmill generator circuit which can be used for charging batteries, or for operating any desired electrical equipment, all through day and night, […]
Simple Musical Door Bell Circuit
A very simple musical door bell circuit can be built and installed in homes, the design features a replaceable music chip option, and an adjustable ringtone duration, as per the […]
SMPS Voltage Stabilizer Circuit
The article explains a solid state switch-mode mains voltage stabilizer circuit without relays, using a ferrite core boost converter and a couple of half-bridge mosfet driver circuits. The idea was […]
PWM Solar Battery Charger Circuit
This simple, enhanced, 5V zero drop PWM solar battery charger circuit can be used in conjunction with any solar panel for charging cellphones or cell phone batteries in multiple numbers […]