High-voltage generating circuit

Details High-voltage generating circuit High-voltage generating circuit

1993-05-12

1995-08-01

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315370, 377 47, 327114, 327131, G09G 104, H03B 1900, H03K 408, H03K 2100

Patent

active

054382459

ABSTRACT:
A high-voltage generating circuit for use in a CRT display apparatus has a horizontal drive circuit which is supplied with a horizontal frequency signal synchronous with a horizontal synchronizing signal in an input signal, a high-voltage converter output circuit which can be turned on and off by an output signal from the horizontal drive circuit, and a flyback transformer connected to an output terminal of the high-voltage converter output circuit. A frequency multiplier connected between the horizontal drive circuit and a terminal supplying the horizontal frequency signal to the horizontal drive circuit multiples the frequency of the horizontal signal at the terminal by a multiplication factor variable depending on the frequency of the horizontal frequency signal.

REFERENCES:
patent: 3838344 (1974-09-01), Tanimoto
patent: 4851709 (1989-07-01), Bailey
Patent Abstracts of Japan, vol. 6, No. 91 JP-A-56035572 (Osawa).
Patent Abstracts of Japan, vol. 6, No. 173, JP-A-57089327 (Nishi).
Patent Abstracts of Japan, vol. 6, No. 107, JP-A-57037920 (Yano).

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