Microwave oven power supply circuit

Details Microwave oven power supply circuit Microwave oven power supply circuit

Filed on

1974-07-15

Date issued

1976-03-09

Examiner

Reynolds, Bruce A.

Patent Class

Electric heating

SubClass

Metal heating

SubSubClass

Of cylinders

Other Related Categories

H05B 906

Type

Patent

Status

active

Patent number

039433170

Description

ABSTRACT:
A microwave oven having a defrosting means including a bidirectional thyristor provided in a power source circuit and a control circuit for on-off controlling the thyristor, whereby microwave radiation can be intermittently irradiated on the foodstuff to obtain effective defrosting. Also, surge current at the time of start and end of the microwave oscillation is prevented.

REFERENCES:
patent: 3546483 (1970-12-01), Lundin
patent: 3735237 (1973-05-01), Derby
patent: 3780252 (1973-12-01), Crapuchettes
patent: 3784781 (1974-01-01), Foeustnev et al.
patent: 3842233 (1974-10-01), Lamb

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