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Title: Power supply for electrostatic air cleaner

Abstract

This patent describes a power supply for energizing an electrostatic air cleaner cell, a unidirectional voltage source; a transformer having a primary winding, a secondary winding, and a feedback winding, one end of the primary winding being connected to one side of the voltage source; a transistor having its collector connected to the other end of the primary winding and its emitter connected to the other side of the voltage source, the transistor being adapted to be repetitively rendered conductive and non-conductive; voltage multiplying means connected to the secondary winding and responsive to the alternating voltage induced into the secondary winding. First circuit means connects one end of the feedback winding to the one side of the voltage source. Second circuit means, in series with the first circuit means connect the one end of the feedback winding to the other side of the voltage source. Third circuit means connect the other end of the feedback winding to the base of the transistor. Fourth circuit means connect the other end of the feedback winding to the emitter of the transistor. First circuit means including resistance means for enabling current flow through the base-emitter circuit of the transistor to initiate conduction ofmore » the transistor, second circuit means including a capacitor and a rectifier connected in parallel to permit current flow during both polarities of the alternating voltage induced in the feedback winding. Third circuit means includes adjustable resistance means for establishing a desired biasing of the transistor, fourth circuit means including voltage regulator means for limiting the biasing of the transistor.« less

Inventors:
Publication Date:
OSTI Identifier:
6366195
Patent Number(s):
US 4654772
Assignee:
Fyrnetics, Inc., Elgin, IL
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 6 Mar 1986
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; AIR FILTERS; POWER SUPPLIES; ELECTROSTATIC PRECIPITATORS; AIR POLLUTION CONTROL; ALTERNATING CURRENT; DIRECT CURRENT; ELECTRIC POTENTIAL; ELECTRONIC CIRCUITS; FEEDBACK; TRANSFORMERS; TRANSISTORS; CONTROL; CURRENTS; ELECTRIC CURRENTS; ELECTRICAL EQUIPMENT; ELECTRONIC EQUIPMENT; EQUIPMENT; FILTERS; POLLUTION CONTROL; POLLUTION CONTROL EQUIPMENT; SEMICONDUCTOR DEVICES; 424000* - Engineering- Pollution Control Equipment- (1980-1989)

Citation Formats

Thorne, R L. Power supply for electrostatic air cleaner. United States: N. p., 1987. Web.
Thorne, R L. Power supply for electrostatic air cleaner. United States.
Thorne, R L. Tue . "Power supply for electrostatic air cleaner". United States.
@article{osti_6366195,
title = {Power supply for electrostatic air cleaner},
author = {Thorne, R L},
abstractNote = {This patent describes a power supply for energizing an electrostatic air cleaner cell, a unidirectional voltage source; a transformer having a primary winding, a secondary winding, and a feedback winding, one end of the primary winding being connected to one side of the voltage source; a transistor having its collector connected to the other end of the primary winding and its emitter connected to the other side of the voltage source, the transistor being adapted to be repetitively rendered conductive and non-conductive; voltage multiplying means connected to the secondary winding and responsive to the alternating voltage induced into the secondary winding. First circuit means connects one end of the feedback winding to the one side of the voltage source. Second circuit means, in series with the first circuit means connect the one end of the feedback winding to the other side of the voltage source. Third circuit means connect the other end of the feedback winding to the base of the transistor. Fourth circuit means connect the other end of the feedback winding to the emitter of the transistor. First circuit means including resistance means for enabling current flow through the base-emitter circuit of the transistor to initiate conduction of the transistor, second circuit means including a capacitor and a rectifier connected in parallel to permit current flow during both polarities of the alternating voltage induced in the feedback winding. Third circuit means includes adjustable resistance means for establishing a desired biasing of the transistor, fourth circuit means including voltage regulator means for limiting the biasing of the transistor.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {3}
}