Invention Grant
- Patent Title: Methods for analog temperature compensation of bias and offsets of a differential sensor
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Application No.: US17431463Application Date: 2020-03-02
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Publication No.: US11949297B2Publication Date: 2024-04-02
- Inventor: Richard S. Lech , Alok Agrawal
- Applicant: Covidien LP
- Applicant Address: US MA Mansfield
- Assignee: COVIDIEN LP
- Current Assignee: COVIDIEN LP
- Current Assignee Address: US MA Mansfield
- Agency: Carter, DeLuca & Farrell, LLP
- International Application: PCT/US2020/020695 2020.03.02
- International Announcement: WO2020/185440A 2020.09.17
- Date entered country: 2021-08-17
- Main IPC: H02K11/24
- IPC: H02K11/24 ; A61B34/00 ; A61B34/37 ; A61B90/00 ; G01K1/02 ; G01K7/00 ; G01L3/10 ; G01L25/00 ; H02K11/25 ; H02P29/68

Abstract:
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.
Public/Granted literature
- US20220140702A1 METHODS FOR ANALOG TEMPERATURE COMPENSATION OF BIAS AND OFFSETS OF A DIFFERENTIAL SENSOR Public/Granted day:2022-05-05
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