Title:
電圧検出装置
Document Type and Number:
Japanese Patent JP6453200
Kind Code:
B2
Abstract:
A voltage detecting apparatus includes: an assembled battery made of plural cells, a self-diagnostic circuit, and a measuring part for measuring the plural cells or measuring a diagnostic voltage generated by the self-diagnostic circuit. Electric power is supplied to the self-diagnostic circuit by a charge pump circuit. The self-diagnostic circuit includes plural circuit elements connected in series, and a current path connected to the measuring part and formed in correspondence with each of the plural circuit elements, and the measuring part includes a multiplexer for switching a state of connection between each of the current paths and the circuit network. The measuring part determines whether or not the circuit network is normal based on a voltage dividing ratio by the circuit element corresponding to the current path switched by the multiplexer.
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Inventors:
Takaaki Izawa
Application Number:
JP2015211434A
Publication Date:
January 16, 2019
Filing Date:
October 28, 2015
Export Citation:
Assignee:
Yazaki Corporation
International Classes:
G01R31/00; G01R19/00; G01R31/36; H01M10/48
Domestic Patent References:
| JP2003304646A | ||||
| JP2010249793A | ||||
| JP3188378A | ||||
| JP2010283955A | ||||
| JP2013007573A |
Foreign References:
| WO2012029221A1 | ||||
| EP2224257A1 |
Attorney, Agent or Firm:
Nobuo Nakamura
Shoichi Masuka
Shoichi Masuka