Regulated deflection circuit

Details Regulated deflection circuit Regulated deflection circuit

1978-11-30

1980-06-24

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

358190, 315411, H01J 2970, H01J 2976

Patent

active

042097320

ABSTRACT:
To regulate the DC input voltage to a deflection circuit, a saturable reactor winding is series coupled with an unregulated DC voltage, a diode, a flyback transformer winding and an input terminal of the deflection circuit. During retrace, the diode is forward biased and conducts input current to the input terminal. During trace, the opposite polarity trace voltage commutates off the diode and decouples the input terminal from the unregulated DC voltage at a varied instant within trace in accordance with the impedance of the saturable reactor winding. The average DC voltage across the diode fluctuates with diode conduction angle variations and maintains a regulated input voltage at the input terminal despite fluctuations in the unregulated DC voltage.

REFERENCES:
patent: 3803447 (1974-04-01), Wolber

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