Voltage regulator

Details Voltage regulator Voltage regulator

1980-11-21

1982-03-02

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Power supply from deflection circuit source

358190, H01J 2970

Patent

active

043180370

ABSTRACT:
A voltage regulator is described for use in a television receiver having a horizontal oscillator for exciting a horizontal sweep system and a power source for energizing the receiver. In a receiver which also includes a voltage source derived from the excited sweep system, the regulator preferably includes an input port for receiving current from the power source and a circuit responsive to that current for initially energizing the horizontal oscillator so that the sweep system becomes excited. The regulator also includes an input/output port for receiving current from the sweep-derived voltage source and an on/off switch which is turned on responsive to the input/output port being driven above a minimum voltage level. The "on" condition of the switch enables a series pass regulator for coupling current from the input port to the input/output port such that the latter port is held at a regulated voltage level. Current at a regulated voltage level is thus available at the input/output port for powering other circuitry within the receiver.

REFERENCES:
patent: 4112465 (1978-09-01), Willis
patent: 4240013 (1980-12-01), Wedam

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