SINGLE-SENSOR MICROCONTROLLER-BASED APPROACH FOR GROUND FAULT CIRCUIT INTERRUPTERS

摘要

A microcontroller-based temperature compensated circuit for ground-fault circuit interrupter to meet requirements of UL 943 using a single sensor (T1) to detect both ground-fault and grounded neutral fault conditions in both full-wave (CR1) and half-wave AC power supplies as part of a ground-fault circuit breaker (10) or a receptacle device.