发明申请
- 专利标题： RESISTOR UNIT AND A CIRCUIT INCLUDING THE RESISTOR UNIT
- 专利标题（中）： 电阻单元和包括电阻器单元的电路
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申请号： US12352553申请日： 2009-01-12
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公开(公告)号： US20100007322A1公开(公告)日： 2010-01-14
- 发明人: Li-Wei Huang
- 申请人： Li-Wei Huang
- 申请人地址： TW Taipei City
- 专利权人： Mobien Corporation
- 当前专利权人： Mobien Corporation
- 当前专利权人地址： TW Taipei City
- 优先权： TW097126068 20080710
- 主分类号： G05F3/08
- IPC分类号： G05F3/08 ; H01C7/06
摘要：
A resistor unit is adapted for use in a constant current source circuit or a temperature compensating circuit for providing temperature compensation to a constant voltage reference circuit. The resistor unit includes at least one first resistor, and at least one second resistor coupled to the first resistor. One of the first and second resistors is a positive temperature coefficient resistor. The other one of the first and second resistors is a negative temperature coefficient resistor. Because a temperature characteristic of the first resistor is opposite to that of the second resistor, an effective resistance of the resistor unit changes in a relatively narrower range with temperature.