Power supply apparatus for traveling-wave tube which...

Details Power supply apparatus for traveling-wave tube which... Power supply apparatus for traveling-wave tube which...

2006-04-25

2006-04-25

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

C315S291000, C323S355000

Reexamination Certificate

active

07034472

ABSTRACT:
A power supply apparatus for a traveling-wave tube disclosed herein eliminates the need for isolation through a vacuum relay or the like, and is therefore fabricated in small size and at low cost. An oscillator circuit generates an oscillating signal at a frequency optionally selected from a plurality of frequencies. An inverter is applied with the oscillating signal from the oscillator circuit to generate an AC voltage signal at the frequency of the oscillating signal. A transformer transforms the AC voltage signal generated by the inverter disposed on the primary side and supplies the resulting signal to the secondary side. A rectifier circuit, which is disposed on the secondary side, rectifies the AC voltage signal transformed by the transformer for application to the traveling-wave tube. A frequency detector circuit detects the frequency of the AC voltage signal applied from the transformer to the rectifier circuit to generate a device control signal in accordance with the frequency. A control device controls the application of a voltage to an anode electrode of the traveling-wave tube in response to the device control signal.

REFERENCES:
patent: 5642268 (1997-06-01), Pratt et al.
patent: 5737197 (1998-04-01), Krichtafovitch et al.
patent: 11-149880 (1999-06-01), None

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