VOLTAGE DETECTION DEVICE FOR FUEL CELL
- 申请公布号:
- JP2011233413(A)
- 申请号:
- JP20100103799
- 申请日期:
- 2010.04.28
- 申请公布日期:
- 2011.11.17
- 申请人:
- YAZAKI CORP
- 发明人:
- ISHIKAWA SATOSHI
- 分类号:
- H01M8/04;B60L3/00;B60L11/18;G01R19/00;H01M8/00
- 主分类号:
- H01M8/04
- 摘要:
- <P>PROBLEM TO BE SOLVED: To provide a voltage detection device for a fuel cell, which can measure a cell voltage even if fuel is not supplied in a cell. <P>SOLUTION: A plurality of cells is divided into five blocks, a first block to a fifth block, and an IC for voltage detection is provided to each block. Each IC for voltage detection operates by supplying power from a cell voltage in each connected block, and one of the ICs for voltage detection (21-1) activates by supplying power from a DC/DC converter 42. Therefore, even if a cell voltage drops for such a reason that fuel is not supplied in a cell, the IC for voltage detection (21-1) enables detecting a cell voltage. If a cell voltage detected by the IC for voltage detection (21-1) exceeds a threshold voltage, other ICs for voltage detection start voltage detection. As the result, highly accurate voltage detection is possible. <P>COPYRIGHT: (C)2012,JPO&INPIT
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