[Glitch] got his hands on a slew of relays which are meant for use in industrial equipment. They are designed to operate at 24V. He wanted to use these with common microcontrollers and instead of b… ...

Many integrated circuits have undocumented features or abilities. This is one of them. The TLC555 output (pin 3) can sink a 100mA load to 1.28V. The open ...

When a Relay driver circuit is used in Sensor based electronic circuits, false triggering may occurs due to unwanted relay clicking. The input signal level is not sharp in most sensor circuits and the ...

Prevent arcing and extra power loss in a relay circuit by timing its switching at zero-crossing with a high-voltage GreenPAK IC.

The relay itself can be triggered by a 9V battery via the transistor in the control circuit. Notice the protoboard in the image above.

Relay driver switches from full-wave to half-wave rectification after relay pulls in in order to save power.

Toshiba Electronic Devices & Storage Corporation releases a new MOSFET that adopts an active-clamp structure for relay drivers.