Single chip voltage monitor for vehicle fuel cell stack |
Title： |
| Single chip voltage monitor for vehicle fuel cell stack |
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Application Number： |
200410006242 |
Application Date： |
2004/03/17 |
Announcement Date： |
2005/01/12 |
Pub. Date： |
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Publication Number： |
1564011 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G01R 31/36 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Fang Cheng, Xu Jiaqun, Li Jianqiu |
Key Words： |
Single chip voltage, monitor, vehicle, fuel cell stack |
Abstract： |
Monitoring device is composed of resistance divider circuit, multiway switch circuit, difference operational amplification circuit, A/D conversion circuit, single chip and CAN communication circuit connected in sequence and communication interface to main controller of fuel cell. The device is capable of monitoring voltages of 59 single cells in fuel cell pile. Combining multiple disclosed monitoring devices with communication between main controller and each equipment realized through CAN network can monitor more cells. Features are: small size, low cost, easy of expansion, high measuring accuracy (maximum absolute error less than 0.08V) and quick measuring speed (time for measuring 59 single cell is less than 0.05 second). |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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