发明名称 |
Konditionierungsschaltung für Signale von Sensoren für flüssiges Wasser zur Verwendung in PEM-Brennstoffzellen |
摘要 |
A measurement circuit that has particular application for detecting a high impedance measurement signal from a liquid water sensor. The measurement circuit includes a high impedance resistance-to-frequency conversion circuit that is coupled to the sensor and receives a resistance signal therefrom. The resistance-to-frequency conversion circuit includes an oscillator that converts the resistance signal to a representative frequency. The measurement circuit also includes a frequency-to-voltage conversion circuit that receives the frequency signal from the resistance-to-frequency conversion circuit, and converts the frequency signal to a representative voltage that provides an indication of water on the sensor. |
申请公布号 |
DE102010005736(A1) |
申请公布日期 |
2010.09.16 |
申请号 |
DE20101005736 |
申请日期 |
2010.01.26 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS INC. |
发明人 |
FUSS, ROBERT L.;KAYE, KENNETH L. |
分类号 |
H01M8/04;G01D3/02 |
主分类号 |
H01M8/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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