- 专利标题: Ramping of sensor power in a microelectromechanical system device
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申请号: US16466606申请日: 2017-11-30
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公开(公告)号: US11142451B2公开(公告)日: 2021-10-12
- 发明人: Claus Fürst , Venkataraman Chandrasekaran
- 申请人: KNOWLES ELECTRONICS, LLC
- 申请人地址: US IL Itasca
- 专利权人: KNOWLES ELECTRONICS, LLC
- 当前专利权人: KNOWLES ELECTRONICS, LLC
- 当前专利权人地址: US IL Itasca
- 代理机构: Foley & Lardner LLP
- 国际申请: PCT/US2017/064036 WO 20171130
- 国际公布: WO2018/106513 WO 20180614
- 主分类号: G01L19/04
- IPC分类号: G01L19/04 ; H04R19/00 ; H04R19/04 ; B81B7/00 ; G01L9/00
摘要:
A microelectromechanical system (MEMS) device includes at least one substrate, a lid, a MEMS component, a sensor, and a power supply. The lid is coupled to the substrate so that the substrate and the lid cooperatively define an interior cavity. The MEMS component is disposed within the interior cavity. The sensor is disposed within the interior cavity and is arranged to detect a parameter of the interior cavity. The power supply provides current to the sensor. The power supply is configured to control current during a ramp-up transition of the current and a ramp-down transition of the current such that the ramp-up transition and the ramp-down transition have attenuated high-frequency components.
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