Device for preventing a high voltage transformer of a microwave

Details Device for preventing a high voltage transformer of a microwave Device for preventing a high voltage transformer of a microwave

1994-11-15

1997-04-29

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Circuit interruption by thermal sensing

361 37, H02H 504

Patent

active

056255209

ABSTRACT:
Disclosed is a device for preventing a high voltage transformer of a microwave oven from being overheated, which directly senses a temperature in a second coil of the high voltage transformer of the microwave oven and thereby supplies or cuts off power to the transformer according to the temperature. In the device, a thermostat is opened/closed according to the temperature of the second coil of the transformer so as to regulate power supply to the first coil of the transformer, and accordingly the transformer is prevented from being overheated.

REFERENCES:
patent: 3717793 (1973-02-01), Peterson
patent: 4454554 (1984-06-01), Coleman
patent: 4812798 (1989-03-01), Chappel

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