Slow turn-on in a deflection circuit

Details Slow turn-on in a deflection circuit Slow turn-on in a deflection circuit

1991-07-15

1992-08-25

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315380, G09G 104, H01J 2970

Patent

active

051422069

ABSTRACT:
A horizontal oscillator, responsive to an on/off control signal, generates an output signal that is coupled via a driver stage to a control terminal of a horizontal deflection output transistor. During a transition interval that follows a standby mode of operation, the duty cycle of the oscillator output signal is reduced relative to when a run mode of operation occurs to provide soft-start operation.

REFERENCES:
patent: 3956669 (1976-05-01), Del Ciello
patent: 4323825 (1982-04-01), Hayes
patent: 4396948 (1983-08-01), Fernsler et al.
patent: 4692853 (1987-09-01), Satre et al.
patent: 4868662 (1989-09-01), Hartman et al.
A Service Manual entitled RCA Color Television Basic Service Data CTC 115 Series, dated 1982, publ. by RCA Inc., Technical Publications Quebec, Canada, cover page & schematic p. 26.
A data sheet for IC MC 1391, made by Motorola.
A data sheet for IC CA1391 published by RCA Corporation.
A copending U.S. patent application, RCA Docket No. 85,536A, filed as a continuation patent application of the parent patent application, Ser. No. 481,426 entitled, A Deflection Driver in a Video Apparatus, in the name of Bruno E. Hennig.

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