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Title: Combination field chopper and battery charger

Abstract

A power transistor used in a chopper circuit to control field excitation of a vehicle motor when in a power mode is also used to control charging current from an a-c to d-c rectifier to the vehicle battery when in a battery charging mode. Two isolating diodes and a small high frequency filter inductor are the only elements required in the chopper circuit to reconfigure the circuit for power or charging modes of operation.

Inventors:
 [1];  [2];  [1]
  1. (Scotia, NY)
  2. (Pittsfield, MA)
Issue Date:
OSTI Identifier:
864022
Patent Number(s):
4292578
Assignee:
United States of America as represented by United States (Washingon, DC) OSTI
DOE Contract Number:  
AC03-79CS51294
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
combination; field; chopper; battery; charger; power; transistor; circuit; control; excitation; vehicle; motor; mode; charging; current; a-c; d-c; rectifier; isolating; diodes; frequency; filter; inductor; elements; required; reconfigure; modes; operation; power transistor; vehicle motor; charging mode; battery charger; chopper circuit; charging current; battery charging; /320/318/

Citation Formats

Steigerwald, Robert L., Crouch, Keith E., and Wilson, James W. A. Combination field chopper and battery charger. United States: N. p., 1981. Web.
Steigerwald, Robert L., Crouch, Keith E., & Wilson, James W. A. Combination field chopper and battery charger. United States.
Steigerwald, Robert L., Crouch, Keith E., and Wilson, James W. A. Thu . "Combination field chopper and battery charger". United States. https://www.osti.gov/servlets/purl/864022.
@article{osti_864022,
title = {Combination field chopper and battery charger},
author = {Steigerwald, Robert L. and Crouch, Keith E. and Wilson, James W. A.},
abstractNote = {A power transistor used in a chopper circuit to control field excitation of a vehicle motor when in a power mode is also used to control charging current from an a-c to d-c rectifier to the vehicle battery when in a battery charging mode. Two isolating diodes and a small high frequency filter inductor are the only elements required in the chopper circuit to reconfigure the circuit for power or charging modes of operation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}

Patent:

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