发明名称 |
Method and apparatus of voltage measurement using flying capacitor and switching circuits |
摘要 |
The present invention is to provide a method and apparatus of voltage measurement with a high resolution. An apparatus of voltage measurement includes: a buffer circuit for separating a voltage between terminals of a capacitor or an equivalent voltage into a first voltage region corresponding to a full scale of an analog/digital (A/D) converter and a second voltage region corresponding to a voltage exceeding the full scale of the A/D converter when the voltage between the terminals of the capacitor charged or the equivalent voltage is higher than the full scale of the A/D converter; the A/D converters corresponding to the first and second voltage regions for converting the voltages of the respective regions from analog to digital values; and a voltage measurement device for evaluating a measured voltage value from the digital values and calculating the voltage of the voltage supply.
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申请公布号 |
US7365528(B2) |
申请公布日期 |
2008.04.29 |
申请号 |
US20060540534 |
申请日期 |
2006.10.02 |
申请人 |
YAZAKI CORPORATION |
发明人 |
KAWAMURA YOSHIHIRO |
分类号 |
G01R1/02;G01R7/00;G01R19/165;G01R19/25;H01M10/48 |
主分类号 |
G01R1/02 |
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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