Microwave oven control circuit

Details Microwave oven control circuit Microwave oven control circuit

1976-12-30

1978-11-14

Truhe, J. V.

Electric heating

Metal heating

Of cylinders

315102, 315151, 315158, H05B 900, H05B 3702, H05B 3904

Patent

active

041257510

ABSTRACT:
A microwave oven control circuit in which the filament of a magnetron supplying microwave energy to the oven is heated to its electron emitting temperature around 1500.degree. C where it emits red spectrum radiation which is sensed by a photoconductive element through the magnetron microwave output structure to produce a control signal actuating the magnetron high voltage supply.

REFERENCES:
patent: 1970411 (1934-08-01), Andrews
patent: 2262044 (1941-11-01), Philpott
patent: 2805385 (1957-09-01), McBean
patent: 2915659 (1959-12-01), Goodman
patent: 3092755 (1958-04-01), Goodman
patent: 3396342 (1968-08-01), Feinberg
patent: 3412227 (1968-11-01), Anderson
patent: 3549942 (1970-12-01), Nijholt
patent: 3591826 (1971-07-01), Valles
patent: 3611017 (1971-10-01), Freeland

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