Digitally regulated power supply for use in electrostatic trans

Details Digitally regulated power supply for use in electrostatic trans Digitally regulated power supply for use in electrostatic trans

1977-11-02

1979-09-04

Pellinen, A. D.

Photocopying

Including fiber optics

307 41, 323 23, 363 26, G03G 1502, H02M 3335

Patent

active

041666909

ABSTRACT:
A digitally regulated power supply for the corona charging unit of an electrostatic copying machine in which a sample of the ionic current of the corona unit is utilized in conjunction with a digital regulator to regulate the power supply establishing the charge of the corona. The digital regulator in conjunction with at least one pulse width modulated power supply permits very fast rise and fall times of the power supply current. Further, between duty cycles of the machine, the digital regulator stores a representation of the correct operating point of the corona charging unit determined in the immediately prior duty cycle. In the next duty cycle, the representation is utilized by the digital regulator to initially regulate the power supply.

REFERENCES:
patent: 3819942 (1974-06-01), Hastwell et al.
patent: 3934141 (1976-01-01), Vargas
patent: 3961193 (1976-06-01), Hudson
patent: 4017744 (1977-04-01), Johnson
patent: 4074134 (1978-02-01), Roalson
DeBrita et al., "Integrated Binary Power Controller", IBMTDB, vol. 17, No. 8, Jan. 1975, pp. 2227-2229.
Ernst, "Dark Voltage Control System", IBMTDB, vol. 17, No. 5, Oct. 1974, p. 1408.
Calvo et al., "Analog-Digital Transistor Switching Regulator Controller", IBMTDB, vol. 17, No. 9, Feb. 1975, pp. 2666/7.

Affiliated with

Also associated with

Rating

Digitally regulated power supply for use in electrostatic trans does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digitally regulated power supply for use in electrostatic trans, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digitally regulated power supply for use in electrostatic trans will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2126814