Cathode ray tube having vertical and horizontal line misconverge

Details Cathode ray tube having vertical and horizontal line misconverge Cathode ray tube having vertical and horizontal line misconverge

1998-04-14

2000-12-12

Ham, Seungsook

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315370, H01J 2951, H01J 2956, G09G 128, G09G 104

Patent

active

061603635

ABSTRACT:
A color picture tube apparatus comprising a YH correction circuit connected to a vertical deflection coil in series and having YH correction coils for generating four-pole magnetic fields, the YH correction circuit being formed of a double bridge circuit, wherein a diode bridge circuit is connected to at least one resistor in parallel, two resistors connected in series are connected to a variable resistor in parallel, the parallel connection is further connected across the output terminals of the diode bridge circuit, and the YH correction coils are connected between the connection point of the two resistors and the movable terminal of the variable resistor.

REFERENCES:
patent: 3781590 (1973-12-01), Chapman
patent: 5142205 (1992-08-01), Yabase et al.
patent: 5523658 (1996-06-01), Fukuma et al.

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