Apparatus for automatically degaussing a color picture tube in r

Details Apparatus for automatically degaussing a color picture tube in r Apparatus for automatically degaussing a color picture tube in r

1997-10-03

1999-10-05

Shingleton, Michael B

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Pulse storing

361150, 361165, 307101, H01F 1300

Patent

active

059629789

ABSTRACT:
An automatic degaussing circuit for a color picture tube (CPT) capable of automatically degaussing the CPT when a power conservation mode is released in a monitor having a power conservation function. The degaussing circuit includes a degaussing coil for eliminating electromagnetic waves produced from the CPT, a power conservation mode detecting section for detecting the release of the power conservation mode in accordance with a power conservation mode signal of the CPT inputted thereto and providing a degaussing control signal for controlling the operation of the degaussing coil if the release of the power conservation mode is detected, and a degaussing coil driving section for driving the degaussing coil for a predetermined time in accordance with the degaussing control signal when the power conservation mode is released.

REFERENCES:
patent: 5168195 (1992-12-01), Breidigan et al.
patent: 5241448 (1993-08-01), Stolte
patent: 5510682 (1996-04-01), Park
patent: 5526221 (1996-06-01), An
patent: 5604403 (1997-02-01), Levy et al.

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