Line scanning and accelerating voltage generating circuit

Details Line scanning and accelerating voltage generating circuit Line scanning and accelerating voltage generating circuit

1988-03-21

1989-09-05

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315395, H01J 2970, H01J 2976

Patent

active

048641960

ABSTRACT:
A line scanning circuit supplying a sawtooth current to a deflection coil and producing auxiliary voltages by way of a transformer. The currents through the coil and the windings of the transformer are both switched simultaneously by the same interrupter, but these inductances are separated by diodes and are each associated with an arrangement formed by a diode and a retrace capacitor to supply the current during the line retrace and the beginning of the trace of the scan. The transformer and the coil are fed independently of each other to allow a variation of the scanning amplitude without a change of the E.H.T.

REFERENCES:
patent: 4381477 (1983-04-01), Bergmans
patent: 4572994 (1986-02-01), Valkestijn et al.
Taub, Line Deflection/EHT Generator Circuit for CRT Display, IBM Technical Disclosure Bulletin, vol. 22, No. 8A, Jan. 1980, p. 3380.

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