High voltage generating apparatus

Details High voltage generating apparatus High voltage generating apparatus

1977-01-04

1979-03-13

Wilbur, Maynard R.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Power supply from deflection circuit source

315382, 315 31TV, H01J 2970

Patent

active

041444809

ABSTRACT:
A high voltage generating apparatus suitable for a television receiver. A flyback transformer has a secondary winding divided into a plurality of parts by at least a diode and a primary winding connected to a variable voltage divider circuit for varying the primary-side flyback pulse voltage. The variable voltage divider circuit is connected to an end of a focus capacitor with the other end thereof connected to the cathode of the diode, so that a variable pulse voltage is applied to the focus capacitor to regulate the focus voltage.

REFERENCES:
patent: 3846666 (1974-11-01), Suzuki et al.
patent: 3866086 (1975-02-01), Miyoshi et al.
patent: 3936719 (1976-02-01), Miyoshi et al.

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