Invention Grant
US09245540B1 Voice coil motor temperature sensing circuit to reduce catastrophic failure due to voice coil motor coil shorting to ground
有权
音圈电机温度检测电路可减少由于音圈电机线圈短路而造成的灾难性故障
- Patent Title: Voice coil motor temperature sensing circuit to reduce catastrophic failure due to voice coil motor coil shorting to ground
- Patent Title (中): 音圈电机温度检测电路可减少由于音圈电机线圈短路而造成的灾难性故障
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Application No.: US14526618Application Date: 2014-10-29
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Publication No.: US09245540B1Publication Date: 2016-01-26
- Inventor: John R. Agness , William K. Laird
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA Irvine
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA Irvine
- Main IPC: G11B5/02
- IPC: G11B5/02 ; G11B5/55 ; H02H3/08 ; G11B5/40
Abstract:
An electrical circuit includes: a controlled switch; one or more temperature sensors in thermal contact with the controlled switch; and a control unit configured to: receive a temperature signal from the one or more temperature sensors; compare the received temperature signal to a predetermined threshold; and in response to the received temperature signal exceeding the predetermined threshold, render the controlled switch inoperative.
Information query
IPC分类:
