Title:
VOLTAGE DETECTING CIRCUIT FOR VEHICLE-MOUNTED BATTERY
Document Type and Number:
WIPO Patent Application WO/2018/021059
Kind Code:
A1
Abstract:
Provided is a voltage detecting circuit for a vehicle-mounted battery with which it is possible to protect a battery monitoring circuit even if a battery module is connected in reverse. A voltage detecting circuit (10) is configured as a device which monitors a battery module (2) in which a plurality of unit batteries (4) are connected in series. The voltage detecting circuit (10) includes: a plurality of voltage signal lines (12) electrically connected to inter-battery electrode portions of the plurality of unit batteries (4) that are connected in series, or to end electrode portions of the battery module (2); and semiconductor switches (14) which are provided in the voltage signal lines (12) and which turn on when the plurality of unit batteries (4) are in a forward-connected state, thereby setting the voltage signal lines (12) to a state of conduction, and which turn off when the plurality of unit batteries (4) are in a reverse-connected state, thereby setting the voltage signal lines (12) to a state of non-conduction.
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Inventors:
SATO SHINICHIRO (JP)
Application Number:
PCT/JP2017/025699
Publication Date:
February 01, 2018
Filing Date:
July 14, 2017
Export Citation:
Assignee:
AUTONETWORKS TECHNOLOGIES LTD (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H02J7/00; H02H7/20
Foreign References:
JP2015201912A | 2015-11-12 | |||
JP2002095159A | 2002-03-29 | |||
JP2003037933A | 2003-02-07 |
Attorney, Agent or Firm:
GRANDOM PATENT LAW FIRM (JP)
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