Alternating polarity power supply control apparatus

摘要

An electronic switching circuit is provided for controlling transfer of electrical power from an alternating polarity electrical power supply to a load means through use of a field-effect transistor device as the primary power controlling element. A bypass means is used to provide shunting between one of the terminating regions of the field-effect transistor device and its substrate in situations where the field-effect transistor device is passing substantial current.