Browse Prior Art Database

SELF-RECTIFYING INVERTER FOR COROTRON POWER SUPPLY

IP.com Disclosure Number: IPCOM000025500D
Original Publication Date: 1985-Oct-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 46K

Publishing Venue

Xerox Disclosure Journal

Abstract

The drawing shows a circuit suitable for rectifying an asymmetric rectangular high voltage waveform using the threshold characteristic of a corotron. The AC power source is a "fly-back converter" which stores energy in the inductance of transformer T when the transistor t is in the conducting state, and delivers energy to the secondary load, e.g., DC corotron C1, at a high voltage and high impedance when transistor t is off.

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XEROX DISCLOSURE JOURNAL

SELF-RECTIFYING INVERTER FOR COROTRON POWER SUPPLY
R. C. Marshall

Proposed Classification
U.S. CI. 355/3CH

Int. Cl. G03g 15/00

The drawing shows a circuit suitable for rectifying an asymmetric rectangular high voltage waveform using the threshold characteristic of a corotron. The AC power source is a "fly-back converter" which stores energy in the inductance of transformer T when the transistor t is in the conducting state, and delivers energy to the secondary load, e.g., DC corotron C1, at a high voltage and high impedance when transistor t is off.

The same power source may be used simultaneously to energise an AC corotron C2 using the %oft-bias" technique by providing a capacitor C in series with the supply and a resistor R in parallel with the capacitor.

Volume 10 Number 5 September/October 1985 285

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286 XEROX DISCLOSURE JOURNAL

Volume 10 Number 5 September/October 1985

[This page contains 1 picture or other non-text object]