Tracking power supply for AC and DC corotrons

Details Tracking power supply for AC and DC corotrons Tracking power supply for AC and DC corotrons

1978-11-01

1980-11-18

Beha, Jr., William H.

Photocopying

Including fiber optics

355 14CH, 361235, G03G 1500

Patent

active

042342490

ABSTRACT:
An electrophotographic copying system is disclosed that employs a mixture of AC and DC corotrons energized by a common power supply. The DC corotrons are energized with an unfiltered, rectified AC voltage derived from the same source as the AC voltage applied to the AC corotrons so that all the corotrons are driven by voltages having a common wave shape. One of the corotrons is regulated by a feedback circuit coupled between the regulated or master corotron and the power supply. The other corotrons track the regulation of the master corotron.

REFERENCES:
patent: 3287623 (1966-11-01), Valancius
patent: 3819942 (1974-06-01), Hastwell
patent: 4138635 (1979-02-01), Quinn

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