Power supply unit

Details Power supply unit Power supply unit

1988-04-29

1989-09-19

Salce, Patrick R.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 97, 355219, H02M 3335

Patent

active

048687294

ABSTRACT:
A power supply unit for an electrostatic printing apparatus such as a copying machine is disclosed. A transformer is driven by a drive circuit having a pulse generator and produces a high voltage in the course of decay of a pulse. An output of a secondary winding of the transformer is detected to control the drive circuit such that the output of the secondary winding is kept at a constant level.

REFERENCES:
patent: 3742330 (1973-06-01), Hodges et al.
patent: 4079295 (1978-03-01), den Hollander
patent: 4092709 (1978-03-01), Voigt et al.
patent: 4133025 (1979-01-01), Wurzberg
patent: 4253136 (1981-02-01), Nanko
patent: 4293904 (1981-10-01), Brooks et al.
patent: 4302803 (1981-11-01), Shelly
patent: 4318165 (1982-03-01), Kornrumpf et al.
patent: 4326245 (1982-04-01), Saleh
patent: 4327404 (1982-04-01), Horiguchi
patent: 4791528 (1988-12-01), Suzuki
New Electronics, vol. 14, No. 14, Flyback Converters for Multirail Switchers, by Robin Stephens, July, 1981.

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