Corona power supply circuit

Details Corona power supply circuit Corona power supply circuit

1975-10-20

1977-06-07

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Electric charge generating or conducting means

With specific power supply

321 2, 321 15, G03G 1500

Patent

active

040285960

ABSTRACT:
A portable power supply circuit for supplying a high voltage corona in a portable electrophotographic apparatus. An A.C. signal comprising a series of pulses is produced by an oscillating circuit. The pulses are shaped by a shaping circuit which draws current during only a portion of the operating cycle. These pulses are coupled through a step-up transformer to a multiplying circuit which multiplies the voltage at its input to the desired corona voltage. A control circuit senses the desired corona voltage and operates to inhibit passage of oscillations from the oscillating circuit to the pulse shaping circuit in order to minimize power consumption.

REFERENCES:
patent: 2965755 (1960-12-01), West
patent: 2985812 (1961-05-01), Peterson
patent: 3280368 (1966-10-01), Ahmed et al.
patent: 3287614 (1966-11-01), Sowiak
patent: 3355639 (1967-11-01), Semenhuk
patent: 3493840 (1970-02-01), Rosenberg
patent: 3567996 (1971-03-01), Gordon et al.
patent: 3815354 (1974-06-01), Strocka et al.
patent: 3819942 (1974-06-01), Hastwell et al.
patent: 3908164 (1975-09-01), Parker
RCA Application Note ICAN-6267, "Digital Integrated Circuits," 3/71, pp. 353-360.

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