Microwave oven including apparatus for varying power level

Details Microwave oven including apparatus for varying power level Microwave oven including apparatus for varying power level

1975-07-30

1977-04-12

Grimley, Arthur T.

Electric heating

Metal heating

Of cylinders

315352, 323 79, 331 86, H05B 906

Patent

active

040177025

ABSTRACT:
Apparatus for varying microwave power level is included in a microwave oven. The microwave oven includes a magnetron for producing microwaves used for heating and a half-wave voltage doubler for supplying half-wave pulsating DC voltage to the magnetron. In order to vary voltage and thus power output of the magnetron, the charging of the capacitor in the half-wave voltage doubler is controlled by a variable resistance connected in series with the rectifier in the otherwise conventional half-wave voltage doubler.

REFERENCES:
patent: 2799809 (1957-07-01), Lautenberger
patent: 3029386 (1962-04-01), Ricker
patent: 3350623 (1967-10-01), Clapp
patent: 3651371 (1972-03-01), Tingley
patent: 3684978 (1972-08-01), Otaguro
patent: 3780252 (1973-12-01), Crapuchettes
patent: 3792369 (1974-02-01), Levinson
patent: 3842233 (1974-10-01), Lamb
patent: 3872277 (1975-03-01), Niu
patent: 3876956 (1975-04-01), Levinson

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