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Title: Solid state safety jumper cables

Abstract

Solid state jumper cables for connecting two batteries in parallel, having two bridge rectifiers for developing a reference voltage, a four-input decoder for determining which terminals are to be connected based on a comparison of the voltage at each of the four terminals to the reference voltage, and a pair of relays for effecting the correct connection depending on the determination of the decoder. No connection will be made unless only one terminal of each battery has a higher voltage than the reference voltage, indicating "positive" terminals, and one has a lower voltage than the reference voltage, indicating "negative" terminals, and that, therefore, the two high voltage terminals may be connected and the two lower voltage terminals may be connected. Current flows once the appropriate relay device is closed. The relay device is preferably a MOSFET (metal oxide semiconductor field effect transistor) combined with a series array of photodiodes that develop MOSFET gate-closing potential when the decoder output causes an LED to light.

Inventors:
 [1]
  1. 353 Church Rd., Beech Island, SC 29841
Issue Date:
Research Org.:
WESTINGHOUSE SAVANNAH RIVER CO
OSTI Identifier:
868674
Patent Number(s):
5189359
Assignee:
Kronberg, James W. (353 Church Rd., Beech Island, SC 29841)
DOE Contract Number:  
AC09-89SR18035
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
solid; safety; jumper; cables; connecting; batteries; parallel; bridge; rectifiers; developing; reference; voltage; four-input; decoder; determining; terminals; connected; based; comparison; pair; relays; effecting; correct; connection; depending; determination; unless; terminal; battery; indicating; positive; negative; current; flows; appropriate; relay; device; closed; preferably; mosfet; metal; oxide; semiconductor; field; effect; transistor; combined; series; array; photodiodes; gate-closing; potential; output; causes; led; light; field effect; metal oxide; current flow; reference voltage; current flows; effect transistor; oxide semiconductor; voltage terminals; semiconductor field; jumper cables; /320/

Citation Formats

Kronberg, James W. Solid state safety jumper cables. United States: N. p., 1993. Web.
Kronberg, James W. Solid state safety jumper cables. United States.
Kronberg, James W. Fri . "Solid state safety jumper cables". United States. https://www.osti.gov/servlets/purl/868674.
@article{osti_868674,
title = {Solid state safety jumper cables},
author = {Kronberg, James W},
abstractNote = {Solid state jumper cables for connecting two batteries in parallel, having two bridge rectifiers for developing a reference voltage, a four-input decoder for determining which terminals are to be connected based on a comparison of the voltage at each of the four terminals to the reference voltage, and a pair of relays for effecting the correct connection depending on the determination of the decoder. No connection will be made unless only one terminal of each battery has a higher voltage than the reference voltage, indicating "positive" terminals, and one has a lower voltage than the reference voltage, indicating "negative" terminals, and that, therefore, the two high voltage terminals may be connected and the two lower voltage terminals may be connected. Current flows once the appropriate relay device is closed. The relay device is preferably a MOSFET (metal oxide semiconductor field effect transistor) combined with a series array of photodiodes that develop MOSFET gate-closing potential when the decoder output causes an LED to light.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

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