Power supply device having control transistors connected in para

Details Power supply device having control transistors connected in para Power supply device having control transistors connected in para

1994-05-17

1996-10-22

Braun, Fred L.

Photocopying

Contact printing

Light boxes

323289, G03G 1500, G03G 2100

Patent

active

055682260

ABSTRACT:
A power supply device converts an input voltage to a transformer to high output voltages at a secondary side. A transistor is connected in parallel with each of two or more series-connected high voltage output circuits of different polarities on the secondary side. The base currents of the transistors paralleled with the output circuits are controlled so that the high voltage output can be continuously varied.

REFERENCES:
patent: 4638240 (1987-01-01), Pauker et al.
patent: 4670667 (1987-06-01), Petit
patent: 4887198 (1989-12-01), Lee
patent: 4891572 (1990-01-01), Suzuki

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