Title:
蓄電機器状態検出装置
Document Type and Number:
Japanese Patent JP4175434
Kind Code:
B2
Abstract:
A detector for detecting a state of an electrical storage device includes capacitor blocks formed of a capacitor-voltage equalizing circuit and a capacitor-voltage detecting circuit both coupled to respective capacitors, and a capacitor-block state outputting circuit outputting states of the capacitors by using the signals supplied from the capacitor-voltage detecting circuits. The signals from the capacitor-voltage detecting circuits are transmitted via an optical switch, which works as an electrical indirect coupler, to the capacitor-block state outputting circuit. This structure allows isolating high-voltage oriented wirings completely from signal oriented wirings, so that high reliability can be ensured.
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Inventors:
Kimiyasu Kakiuchi
Yosuke Mitani
Yosuke Mitani
Application Number:
JP2007506384A
Publication Date:
November 05, 2008
Filing Date:
September 05, 2006
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
G01R31/00; H01G13/00; H02J7/00; H02J7/02
Domestic Patent References:
| JP2002084669A | ||||
| JP2003110300A | ||||
| JP2078964A | ||||
| JP2000065906A | ||||
| JP2005110439A | ||||
| JP2003070179A | ||||
| JP2005028908A | ||||
| JP2002281686A | ||||
| JP8339829A |
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano
Hiroki Naito
Daisuke Nagano