Display device having set protection function upon generation of

Details Display device having set protection function upon generation of Display device having set protection function upon generation of

1997-02-24

1999-08-31

Westin, Edward P.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Power supply from deflection circuit source

315408, H04N 318, H04N 320

Patent

active

059457937

ABSTRACT:
A display device having a set protecting function upon generation of an abnormal voltage includes a horizontal deflection circuit for providing a horizontal signal to a deflection yoke connector, a high voltage output circuit for supplying a high voltage to an anode in accordance with an oscillating signal applied from the horizontal deflection circuit, a power supply circuit for supplying power to the horizontal deflection circuit, and an abnormal voltage detector disposed between the deflection yoke connector, and the high voltage output circuit and the power supply circuit, for detecting whether the deflection yoke connector is connected and whether a part of the high voltage output circuit is damaged, to thereby control a power output of the power supply circuit in accordance with a detected result.

REFERENCES:
patent: 3629644 (1971-12-01), Waybright
patent: 3749966 (1973-07-01), Ahrens et al.
patent: 4047078 (1977-09-01), Meehan
patent: 4063133 (1977-12-01), Nero et al.
patent: 4074323 (1978-02-01), Griffey
patent: 4090111 (1978-05-01), Suzuki
patent: 4291257 (1981-09-01), Bohringer
patent: 4459517 (1984-07-01), Hicks
patent: 5034665 (1991-07-01), Wignot et al.

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