Solid state safety jumper cables

Patent Application · Tue Jan 22 00:00:00 EST 1991

OSTI ID:7177698

Kronberg, J W

This invention consists of 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 C{sup 2} 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.

• Research Organization: Westinghouse Savannah River Co., Aiken, SC (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC09-89SR18035
• Assignee: Dept. of Energy
• Patent Number(s): PATENTS-US-A7643317
• Application Number: ON: DE92019824; PPN: US 7-643317
• OSTI ID: 7177698
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
25 ENERGY STORAGE
42 ENGINEERING
ELECTRIC CABLES
DESIGN
AUTOMOBILES
CONNECTORS
ELECTRIC BATTERIES
ELECTRIC CONTACTS
INVENTIONS
MOSFET
RECTIFIERS
CABLES
CONDUCTOR DEVICES
ELECTRICAL EQUIPMENT
ELECTROCHEMICAL CELLS
EQUIPMENT
FIELD EFFECT TRANSISTORS
MOS TRANSISTORS
SEMICONDUCTOR DEVICES
TRANSISTORS
VEHICLES
330000* - Advanced Propulsion Systems
250900 - Energy Storage- Batteries
426000 - Engineering- Components
Electron Devices & Circuits- (1990-)