A load switch is an electronic switch. It works like a relay to power supply rails in systems, but it has no moving parts. Load switches are increasingly found in today’s portable electronic devices, ...

This is a very simple touch light switch circuit that uses the 4011 IC, one transistor and a relay. The C1 capacitor stores the switching state at a certain time and is charged or discharged according ...

According to the U.S. Department of Energy, the electricity used to light businesses represents 25% of the energy they spend, so it's important to develop energy-saving devices. Now engineers at the ...

This simple 4093-based audio peak detector from December 2004 monitors music and turns on a small light when the sound gets ...