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.

Ultra-Precise, Current-Sense Amplifier

  The INAx290 is an ultra-precise, current-sense amplifier that can measure voltage drops across shunt resistors over a wide common-mode ran...