Automatic AC Power Switch Automatic AC Power Switch Circuit Electrical appliances accidentally left on in (holiday) homes left unoccupied for a short or a long peri... Read More
Simplistic Solar Circuits Project With LEDs How to start adding solar energy to your small electronics projects . Use the sun to power small solar night lights and batteries , garden... Read More
One-transistor Voltage Converter Circuit One-transistor Voltage Converter Circuit Taking apart a solar-powered lamp revealed a single-transistor voltage converter circuit that al... Read More
Power-Back Surge Protection Power-Back Surge Protection Circuit Power-Back Surge Protector is a simple yet effective solution for protecting your valuable and sensitiv... Read More
3 Volts Car Adapter This 3 volts Car Adapter circuit is based on a standard LT1074CT switching regulator IC. The schematic shows the LT1074CT used as a positive... Read More