发明名称 |
Differential voltage measuring circuit |
摘要 |
Apparatus for measuring the difference between two voltages in which a first current proportional to the voltage difference is generated at a first point, and there is circuitry for delivering at a second point a second current that is based on the first current and is indicative of the voltage difference; the circuitry includes an uninterrupted current path from the first point to the second point and the current path has a circuit element across which at least a portion of the common mode voltage appears; and the circuit element provides an output current to the path which is independent of the voltage across the circuit element.
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申请公布号 |
US4659997(A) |
申请公布日期 |
1987.04.21 |
申请号 |
US19850787755 |
申请日期 |
1985.10.15 |
申请人 |
TERADYNE, INC. |
发明人 |
FERLAND, MICHAEL R.;BURNS, JR., ROGER V.;WHEALLER, JR., J. ANSON |
分类号 |
H03F3/45;(IPC1-7):H03F3/45 |
主分类号 |
H03F3/45 |
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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