Automatic thawing apparatus for a microwave oven

Details Automatic thawing apparatus for a microwave oven Automatic thawing apparatus for a microwave oven

F - Mech Eng,Light,Heat,Weapons

24

C

F24C 7/02 (2006.01) F24C 7/08 (2006.01) H05B 6/68 (2006.01)

Patent

CA 2138475

An improved automatic thawing apparatus for a microwave oven capable of advantageously thawing food which includes a heating chamber for a food placement therein; a microwave generator for providing microwave energy into the heating chamber in order to heat the food therein; at least one amplifier for amplifying signals detected by a thawing state detection circuit to a predetermined level; a bias voltage control circuit for generating bias signals for initializing an output signal of the amplifier to a predetermined level in beginning of the thawing operation; and a control circuit for controlling the initialization of the output signal of the amplifier to the predetermined level by controlling the bias voltage control circuit, for judging the thawing state of the food in the heating chamber in response to the signal outputted from the amplifier, and for outputting control signals to the microwave generator in accordance with such judgement.

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