Sunday, May 29, 2016

Relay Circuits

Momentary Relay Activation Circuit



The relay will energize momentarily until the capacitor is fully (or partially) charged.



The relay coil produces brief high-voltage spikes when switched off. These voltage spikes can destroy transistors and ICs in the circuit. To prevent damage, a protection diode must be placed across the relay.

Low power Pushbutton ON/OFF Controller solution from Linear Technology

  All of the flexible timing circuitry required to debounce the on/off pushbutton is integrated within the LTC2950. For applications that ne...