Electric lamp and discharge devices: systems – Cathode ray tube circuits – Cathode-ray deflections circuits
Patent
1994-02-24
1999-11-09
Westin, Edward P.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Cathode-ray deflections circuits
H04N 316, G09G 104
Patent
active
059821159
ABSTRACT:
A non-switched, DC coupled vertical deflection circuit includes a source of a first DC supply voltage that is coupled to a first end terminal of a vertical deflection winding. An amplifier is energized by a second DC supply voltage having twice the magnitude of the first DC supply voltage and the same polarity. An output voltage of the amplifier having the same polarity of each of the first and second DC supply voltages is developed at a second end terminal of the deflection winding. The amplifier produces a deflection current at opposite polarities, during corresponding portions of a vertical trace interval.
REFERENCES:
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patent: 4544864 (1985-10-01), Haferl
patent: 4686432 (1987-08-01), Berland et al.
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patent: 4956585 (1990-09-01), Rilly
patent: 5229692 (1993-07-01), Wilber
Deutsche Thomson Brandt GmbH
Gardner Shane R.
Henig Sammy S.
Laks Joseph J.
Tripoli Joseph S.
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