Microwave generator apparatus comprising controller for automati

Details Microwave generator apparatus comprising controller for automati Microwave generator apparatus comprising controller for automati

1997-05-06

1998-02-24

Pascal, Robert

Electric lamp and discharge devices: systems

With cathode or cathode heater supply circuit

339 86, 339 88, 339 91, 219716, 219761, H03B 910

Patent

active

057214700

ABSTRACT:
In a microwave generator apparatus including a magnetron having a filament and an anode and generating a microwave, a filament power source supplies a filament power to the filament of the magnetron, and an anode power source applies an anode voltage between the filament and the anode of the magnetron. Then a parasitic oscillation detecting circuit detects a parasitic oscillation voltage superimposed on the microwave generated by the magnetron, and a filament power controller, in response to the parasitic oscillation voltage detected by the parasitic oscillation detecting circuit, controls the filament power source to control the filament power so that the parasitic oscillation voltage is made smaller.

REFERENCES:
patent: 4939330 (1990-07-01), Berggren et al.
patent: 4939331 (1990-07-01), Berggren et al.
patent: 5149929 (1992-09-01), Minakawa et al.
patent: 5515011 (1996-05-01), Pasco

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