The following schematic shows the Relay Wiring Circuit Diagram for controlling an Air Conditioner or other higher high-current device from a microcontroller. This circuit is necessary if you are using a relay with a coil that needs more power than the microcontroller can supply. The diode protects the circuit in case the polarity is reversed.

high current relay circuit diagram



Related Post

Car Audi Amplifier Circuits - RF Filtering by x2y.com
LM4962 Ceramic Speaker Driver Circuit Diagram Application and Datasheet
Circuit Diagram for Full-Duplex Intercom using TDA7052 Audio Power Amplifier IC
RCA Connector to TV|VCR Cable Connection Schematic Diagram
Samsung BD-P1500 Blu-Ray to TV with HDMI Cable Connection