Title:
VOLTAGE DETECTION CIRCUIT FOR VEHICLE
Document Type and Number:
WIPO Patent Application WO/2019/208172
Kind Code:
A1
Abstract:
This voltage detection circuit is realized with a simpler configuration and can separately detect the individual cell voltages of vehicle power storage units constituted by a plurality of power storage cells being connected in series. In a voltage detection circuit (1), if any circuit to be driven from among a plurality of individual detection circuits (10) is provided with a driving signal from a control circuit (2) and another circuit that is not to be driven is provided with a non-driving signal from the control circuit (2), a switch unit of the circuit that is not to be driven performs an OFF operation, thereby stopping the generation of an output voltage at the circuit that is not to be driven without a current flowing to a first transistor and a second transistor of the circuit that is not to be driven, and a switch unit of the circuit to be driven performs an ON operation, thereby causing a current to flow to a first transistor and a second transistor of the circuit to be driven and causing a voltage based on the end-to-end voltage of a power storage cell (104) corresponding to the circuit to be driven to be applied to an output conductive path (4).
Inventors:
SHIMAMOTO KAZUSHI (JP)
SUGISAWA YUUKI (JP)
SUGISAWA YUUKI (JP)
Application Number:
PCT/JP2019/015149
Publication Date:
October 31, 2019
Filing Date:
April 05, 2019
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:
G01R19/00; G01R31/392; H01M10/48
Foreign References:
| JP2007085847A | 2007-04-05 | |||
| JPH04274777A | 1992-09-30 | |||
| US20140234678A1 | 2014-08-21 | |||
| US20100289497A1 | 2010-11-18 |
Attorney, Agent or Firm:
GRANDOM PATENT LAW FIRM (JP)
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