Automatic degaussing circuit with switch mode power supply

Details Automatic degaussing circuit with switch mode power supply Automatic degaussing circuit with switch mode power supply

1982-11-01

1984-12-18

Dixon, Harold

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Pulse storing

315 1, H01J 2906

Patent

active

044892535

ABSTRACT:
A degaussing circuit for a color television receiver has a continuously energized switch mode power supply feeding a voltage doubler coupled to a resonating capacitor connected in series with a degaussing coil for charging the capacitor while the receiver is off. A triac connects the capacitor and the degaussing coil in parallel when the television receiver low voltage on/off switch is turned on.

REFERENCES:
patent: 2962621 (1960-11-01), Fernald
patent: 3324344 (1967-06-01), Norley
patent: 3344307 (1967-09-01), Van Anrcoy et al.

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