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:
- Issue Date:
- OSTI Identifier:
- 6151302
- Patent Number(s):
- 5189359
- 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 = {1993},
month = {2}
}