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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:
Publication Date:
OSTI Identifier:
6151302
Patent Number(s):
US 5189359; A
Application Number:
PPN: US 7-643317
Assignee:
IMS; EDB-93-120112
DOE Contract Number:  
AC09-89SR18035
Resource Type:
Patent
Resource Relation:
Patent File Date: 22 Jan 1991
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; ELECTRIC BATTERIES; ELECTRIC CABLES; BATTERY CHARGE STATE; ELECTRIC BRIDGES; ELECTRIC POTENTIAL; ORIENTATION; SAFETY; SEMICONDUCTOR RECTIFIERS; VOLTAGE REGULATORS; CABLES; CONDUCTOR DEVICES; ELECTRICAL EQUIPMENT; ELECTROCHEMICAL CELLS; EQUIPMENT; RECTIFIERS; SEMICONDUCTOR DEVICES; 250903* - Energy Storage- Batteries- Materials, Components, & Auxiliaries

Citation Formats

Kronberg, J.W.. Solid state safety jumper cables. United States: N. p., 1993. Web.
Kronberg, J.W.. Solid state safety jumper cables. United States.
Kronberg, J.W.. Tue . "Solid state safety jumper cables". United States.
@article{osti_6151302,
title = {Solid state safety jumper cables},
author = {Kronberg, J.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 = {Tue Feb 23 00:00:00 EST 1993},
month = {Tue Feb 23 00:00:00 EST 1993}
}