SAFETY CIRCUIT FOR MICROWAVE OVEN

摘要

PURPOSE: A safety circuit for a microwave oven is provided to prevent an excessive heating and burning of the microwave oven and to use conveniently and safely. CONSTITUTION: A safe circuit comprises:a third temperature switch(TCO3) connected to a side of a first temperature switch for being turned on/off according to the temperature of a magnetron; a fourth temperature switch(TCO4) connected to a side of a second temperature switch for being turned on/off according to the temperature of a cabinet; a microcomputer(10) detecting the on/off states of the third and the fourth switches for turning on/off a main relay(RY1) according to the on/off stated of the third and the fourth switches and outputting a certain signal; and an alarming/displaying unit(11) generating an alarm or displaying a message according to the certain signal outputted from the microcomputer.