Deflection yoke

Details Deflection yoke Deflection yoke

1993-09-16

1995-03-14

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315370, 315399, G09G 128, G09G 104, H01J 2956

Patent

active

053979680

ABSTRACT:
Deflection yoke of self-convergence system for deflecting electron beams of a color picture tube, has a pair of saddle type horizontal deflection coils and a pair of saddle type vertical deflection coils of first and second coils connected in series each other, a winding of each of the first and the second coils has a start, a finish and a tap provided between the start and the finish, the deflection yoke further has a diode block composed of diodes connected in parallel and reversed polarity each other. The deflection yoke features that the diode block is connected between the start and the tap of the respective first and second coils, or between the taps of the respective first and second coils, or between the start of the first coil and the start of the second coil, so that misconvergence of the electron beams is minimized. In order to compensate a resistance increase of the vertical deflection coils when temperature thereof rises, a temperature compensation circuit may further be connected in series to the vertical deflection coils.

REFERENCES:
patent: 5008600 (1991-04-01), Hashimoto et al.
patent: 5079486 (1992-01-01), Honda et al.
patent: 5142205 (1992-08-01), Yabase et al.
patent: 5260627 (1993-11-01), Yokota et al.

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