Back-up control circuit for controlling a magnetron of a microwave oven

摘要

A control circuit for controlling a magnetron of a microwave oven includes a microcomputer output control means for controlling the energy output of the microwave oven, and a means for controlling the magnetron in response to a time signal and a food temperature signal. The control circuit includes a back-up circuit to de-energize the magnetron when cooking is complete in the event of a malfunction of the microcomputer.