- 专利标题: On-chip resonance detection and transfer function mapping of resistive-inductive-capacitive sensors
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申请号: US16455437申请日: 2019-06-27
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公开(公告)号: US10935620B2公开(公告)日: 2021-03-02
- 发明人: Tejasvi Das , Siddharth Maru , Matthew Beardsworth , Bruce E. Duewer , Michael A. Kost
- 申请人: Cirrus Logic International Semiconductor Ltd.
- 申请人地址: GB Edinburgh
- 专利权人: Cirrus Logic International Semiconductor Ltd.
- 当前专利权人: Cirrus Logic International Semiconductor Ltd.
- 当前专利权人地址: GB Edinburgh
- 代理机构: Jackson Walker L.L.P.
- 主分类号: G01R35/00
- IPC分类号: G01R35/00 ; G01R23/02 ; G01R27/02 ; G06F3/041
摘要:
A system may include a resistive-inductive-capacitive sensor, a driver configured to drive the resistive-inductive-capacitive sensor with a driving signal at a driving frequency, and a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to, during a calibration phase of the measurement circuit, measure phase and amplitude information associated with the resistive-inductive-capacitive sensor and based on the phase and amplitude information, determine at least one of a resonant frequency of the resistive-inductive-capacitive sensor and a transfer function of the resistive-inductive-capacitive sensor.
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