发明名称 |
Method and circuit arrangement for current measurement |
摘要 |
A method with corresponding circuit arrangement is disclosed, whereby for evaluation of a measured signal arising as an analogue value with a potential greater than zero potential in a measuring device requiring a supply current, the measured information therefrom is transmitted as a digital signal to an analytical unit lying at earth potential after an A/D conversion. The generated digital signal thus provides the clock signal for a modulation of the supply current and thus also carries out the function of the carrier for the information content of the measured signal. Curved characteristic lines for compression/decompression of the signals are used. Suitable devices for temperature compensation may be similarly provided.
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申请公布号 |
US7242177(B2) |
申请公布日期 |
2007.07.10 |
申请号 |
US20050524561 |
申请日期 |
2005.02.14 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
MAIER REINHARD;RUPP JUERGEN |
分类号 |
G01R1/20;G01R15/14;G01R19/252;G01R19/32;G01R27/00 |
主分类号 |
G01R1/20 |
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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