Television receiver high frequency regulated power supply includ

Details Television receiver high frequency regulated power supply includ Television receiver high frequency regulated power supply includ

1981-04-02

1982-08-17

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Power supply from deflection circuit source

315400, 323310, H01J 2970

Patent

active

043451888

ABSTRACT:
A source of high frequency alternating input voltage is coupled to the primary winding of a high frequency low voltage ferroresonant transformer of a television receiver power supply. A capacitor is coupled across the secondary output winding of the ferroresonant transformer, and generates a circulating current that magnetically saturates the secondary core portion of the transformer to regulate the alternating polarity output voltage developed across the secondary output winding. A step-up high voltage transformer includes a primary winding and a high voltage secondary winding tightly coupled to the step-up transformer primary winding. The regulated alternating polarity output voltage developed by the low voltage ferroresonant transformer is coupled to the primary winding of the step-up high voltage transformer without prior DC rectification of the ferroresonant transformer output voltage. The applied, regulated ferroresonant transformer output voltage develops a regulated high voltage across the step-up transformer high voltage secondary winding. A high voltage rectifier arrangement develops an ultor voltage from the regulated high voltage.

REFERENCES:
patent: 3739255 (1973-06-01), Leppert
patent: 3798497 (1974-03-01), Manske
patent: 3868538 (1975-02-01), Blanchard
patent: 4240013 (1980-12-01), Wedam
Paper presented at 1977 Convention of Institute of Television Engineers of Japan entitled "Stabilized Power Supply Incorporating High-Frequency Ferro-Resonance Transformer", T. Kadota et al., dated 10-7-77.

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