Power supply apparatus and high frequency circuit system

Details Power supply apparatus and high frequency circuit system Power supply apparatus and high frequency circuit system

2007-01-30

2009-02-10

Owens, Douglas W. (Department: 2821)

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Combined cathode ray tube and circuit element structure

C330S007000

Reexamination Certificate

active

07489084

ABSTRACT:
A power supply apparatus for supplying predetermined supply voltages respectively to an anode electrode, a cathode electrode, a collector electrode, and a helix of an electron tube. The power supply apparatus comprises an anode switch for turning on/off the anode voltage output, and an anode switch control circuit for controlling the on/off operation of the anode switch such that a pulsed anode voltage is repeatedly applied to the anode electrode a plurality of times at a predetermined period when operation of a helix power supply and a collector power supply is stopped.

REFERENCES:
patent: 3566180 (1971-02-01), Ewton
patent: 4323853 (1982-04-01), Kurokawa
patent: 5744919 (1998-04-01), Mishin et al.
patent: 2005-045478 (2005-02-01), None

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