Push-pull amplifier

Details Push-pull amplifier Push-pull amplifier

1978-10-30

1980-08-19

Hubler, Malcolm F.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315403, 330263, 330267, 330268, H01J 2970, H03F 326

Patent

active

042186382

ABSTRACT:
A vertical deflection amplifier includes a driver amplifier stage having a source of sawtooth deflection signals at the vertical rate and direct current feedback from the vertical deflection winding as inputs. The driver amplifier stage drives a pair of voltage translation stages each of which drives a transistor in a complementary-symmetry output stage. The voltage translation stages are independent of each other and are biased to operate as constant current sources with no signal present for controlling the quiescent current of the output stage. The improved vertical amplifier can thus be utilized to pass a horizontal rate signal combined with the vertical rate signal to effect image rotation when the deflection amplifier is used with an image pickup tube.

REFERENCES:
patent: 3426245 (1969-02-01), Yurasek et al.
patent: 3559086 (1971-01-01), Wyckoff, Jr.
patent: 3740657 (1973-06-01), Tharmaratnam
patent: 3781589 (1973-12-01), Brockmann
patent: 3786303 (1974-01-01), Hilburn
patent: 3852678 (1974-12-01), Frye
patent: 3965390 (1976-06-01), Spencer, Jr.
patent: 3969653 (1976-07-01), Fukaya
patent: 3979641 (1976-09-01), Arakawa et al.
patent: 3983452 (1976-09-01), Bazin

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