Ground detection circuit for a three wire power supply

Details Ground detection circuit for a three wire power supply Ground detection circuit for a three wire power supply

H - Electricity

02

H

H02H 3/16 (2006.01)

Patent

CA 2168710

A three wire power supply circuit is provided comprising a circuit for monitoring the integrity of the ground connection of the power supply circuit. A circuit element is provided in the line-to-ground current path which conducts when current flows in the line-to-ground current path and is nonconductive when the ground connection is poor or absent. A microcontroller monitors the output of the circuit element and operates a buzzer or a light emitting diode to indicate when the ground connection is poor or absent.

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