Magnetron mode detector

Details Magnetron mode detector Magnetron mode detector

1982-09-07

1985-03-12

Chatmon, Saxfield

Electric lamp and discharge devices: systems

With cathode or cathode heater supply circuit

Discharge device and/or rectifier in the cathode or heater...

315105, 217 1055B, 331 91, 324412, H05B 3700, H05B 4114

Patent

active

045047677

ABSTRACT:
A mode detector for microwave oven magnetrons is disclosed including means for sensing interruption of anode current and providing a discrete indication thereof. An alternative embodiment discloses means to count the number of such interruptions. A method of detecting incipient failure of the magnetron is disclosed wherein the discrete output of a mode detector is observed and a determination is made that an incipient failure exists when the mode detector output frequency exceeds a predetermined limit.

REFERENCES:
patent: 3302060 (1967-01-01), Blok et al.
patent: 3752948 (1973-08-01), Peterson
patent: 3784781 (1974-01-01), Foerstner et al.
patent: 4318165 (1982-03-01), Kornrumpf et al.
patent: 4415789 (1983-11-01), Nabue et al.

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