Convergence correcting device

Details Convergence correcting device Convergence correcting device

1993-01-19

1993-12-28

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

31536828, 315400, 335213, G09G 104, H01J 2970, H01H 100

Patent

active

052743080

ABSTRACT:
A convergence correcting device is disclosed in which a first correcting element varies an inductance of horizontal correcting coils so as to correct a misconvergence in a saturable region of a flux generated according to the horizontal correcting coils of the saturable reactor, and the second correcting element corrects a misconvergence by increasing a flux density at the vertical side of the saturable reactor after focusing magnetic fields generated from vertical correcting coils and the magnet.

REFERENCES:
patent: 4588930 (1986-05-01), Kobayashi et al.
patent: 4642528 (1987-02-01), Kobayashi et al.
patent: 4704564 (1987-11-01), Ito et al.

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