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Title: Shunt switched resistor regulator with diode snubber

Abstract

This patent describes a shunt switched resistor regulator power supply for supplying a variable amount of power to a load comprising: a rectifier means for accepting AC input voltage and converting it to DC output voltage at a positive and a negative terminal; first, second, third, and fourth nodes wherein the first and the fourth nodes are coupled to the positive and negative terminals, respectively; a current limiting resistor coupled between the first and second nodes; a capacitor coupled between the second and fourth nodes; a resistor having parasitic inductance coupled between the second and third nodes; a switch coupled between the third and fourth nodes; and a diode having its anode coupled to the third node and having its cathode coupled to the second node; means coupled to the load terminals for sensing the power being delivered to the load and for controlling the switch to have a duty cycle which results in the desired load current flowing through and a desired voltage appearing across the load in accordance with control input signals received at a control input.

Inventors:
Publication Date:
OSTI Identifier:
6069983
Patent Number(s):
US 4814966
Assignee:
Spectra-Physics, Inc., San Jose, CA
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 30 Sep 1987
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; 42 ENGINEERING; POWER SUPPLIES; VOLTAGE REGULATORS; ALTERNATING CURRENT; CAPACITORS; DESIGN; DIRECT CURRENT; POWER CONDITIONING CIRCUITS; RECTIFIERS; RESISTORS; SEMICONDUCTOR DIODES; SHUNT REACTORS; CURRENTS; ELECTRIC CURRENTS; ELECTRICAL EQUIPMENT; ELECTRONIC CIRCUITS; ELECTRONIC EQUIPMENT; EQUIPMENT; SEMICONDUCTOR DEVICES; 200300* - Electric Power Engineering- Power Transmission & Distribution- (-1989); 420800 - Engineering- Electronic Circuits & Devices- (-1989)

Citation Formats

Ekstrand, J. Shunt switched resistor regulator with diode snubber. United States: N. p., 1989. Web.
Ekstrand, J. Shunt switched resistor regulator with diode snubber. United States.
Ekstrand, J. Tue . "Shunt switched resistor regulator with diode snubber". United States.
@article{osti_6069983,
title = {Shunt switched resistor regulator with diode snubber},
author = {Ekstrand, J},
abstractNote = {This patent describes a shunt switched resistor regulator power supply for supplying a variable amount of power to a load comprising: a rectifier means for accepting AC input voltage and converting it to DC output voltage at a positive and a negative terminal; first, second, third, and fourth nodes wherein the first and the fourth nodes are coupled to the positive and negative terminals, respectively; a current limiting resistor coupled between the first and second nodes; a capacitor coupled between the second and fourth nodes; a resistor having parasitic inductance coupled between the second and third nodes; a switch coupled between the third and fourth nodes; and a diode having its anode coupled to the third node and having its cathode coupled to the second node; means coupled to the load terminals for sensing the power being delivered to the load and for controlling the switch to have a duty cycle which results in the desired load current flowing through and a desired voltage appearing across the load in accordance with control input signals received at a control input.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {3}
}