- 专利标题: Methods for analog temperature compensation of bias and offsets of a differential sensor
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申请号: US17431463申请日: 2020-03-02
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公开(公告)号: US11949297B2公开(公告)日: 2024-04-02
- 发明人: Richard S. Lech , Alok Agrawal
- 申请人: Covidien LP
- 申请人地址: US MA Mansfield
- 专利权人: COVIDIEN LP
- 当前专利权人: COVIDIEN LP
- 当前专利权人地址: US MA Mansfield
- 代理机构: Carter, DeLuca & Farrell, LLP
- 国际申请: PCT/US2020/020695 2020.03.02
- 国际公布: WO2020/185440A 2020.09.17
- 进入国家日期: 2021-08-17
- 主分类号: H02K11/24
- IPC分类号: H02K11/24 ; A61B34/00 ; A61B34/37 ; A61B90/00 ; G01K1/02 ; G01K7/00 ; G01L3/10 ; G01L25/00 ; H02K11/25 ; H02P29/68
摘要:
A measurement circuit that is configured to provide a torque reading to a motion controller includes an offset controller and an amplifier. The offset controller is configured to read a temperature signal and to generate an offset voltage in response to receiving the temperature signal. The amplifier is configured to read a differential voltage from a differential sensor and to receive the offset voltage from the offset controller. The amplifier is also configured to add the offset voltage to the differential voltage after applying a gain to the differential voltage to generate an adjusted voltage. The amplifier is then configured to transmit the adjusted voltage.
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