- 专利标题: RESISTOR WITH TEMPERATURE COEFFICIENT OF RESISTANCE (TCR) COMPENSATION
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申请号: EP23201364.9申请日: 2010-09-02
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公开(公告)号: EP4280232A2公开(公告)日: 2023-11-22
- 发明人: BERTSCH, Thomas L. , WYATT, Todd L. , VEIK, Thomas L. , SMITH, Clark L.
- 申请人: Vishay Dale Electronics, Inc.
- 申请人地址: US Columbus, NE 68601 1122 23rd Street
- 代理机构: AWA Sweden AB
- 优先权: US359000 P 20100628
- 主分类号: H01C17/28
- IPC分类号: H01C17/28
摘要:
A current sense resistor and a method of manufacturing a current sensing resistor with temperature coefficient of resistance (TCR) compensation is disclosed. The resistor has a resistive strip disposed between two conductive strips. A pair of main terminals and a pair of voltage sense terminals are formed in the conductive strips. A pair of rough TCR calibration slots are located between the main terminals and the voltage sense terminals, each of the rough TCR calibration slots have a depth selected to obtain a negative starting TCR value observed at the voltage sense terminals. A fine TCR calibration slot is formed between the pair of voltage sense terminals. The fine TCR calibration slot has a depth selected to obtain a TCR value observed at the voltage sense terminals that approaches zero. The resistance calibration slot has a depth selected to calibrate a resistance value of the resistor.
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