- 专利标题: RESISTOR WITH TEMPERATURE COEFFICIENT OF RESISTANCE (TCR) COMPENSATION
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申请号: EP10814475申请日: 2010-09-02
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公开(公告)号: EP2474008A4公开(公告)日: 2018-03-28
- 发明人: SMITH CLARK L , BERTSCH THOMAS L , WYATT TODD L , VEIK THOMAS
- 申请人: VISHAY DALE ELECTRONICS INC
- 专利权人: VISHAY DALE ELECTRONICS INC
- 当前专利权人: VISHAY DALE ELECTRONICS INC
- 优先权: US23996209 2009-09-04; US35900010 2010-06-28
- 主分类号: H01C7/06
- IPC分类号: H01C7/06 ; G01R1/20 ; G01R19/00 ; G01R19/32 ; H01C1/00 ; H01C1/148 ; H01C17/232 ; 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 resistor can also have a resistance calibration slot located between the pair of main terminals. The resistance calibration slot has a depth selected to calibrate a resistance value of the resistor.
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