发明申请
- 专利标题: MOTOR DRIVE CIRCUIT
- 专利标题(中): 电机驱动电路
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申请号: US13158009申请日: 2011-06-10
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公开(公告)号: US20110304285A1公开(公告)日: 2011-12-15
- 发明人: Tsutomu Shimazaki , Akira Suzuki , Takeshi Arai
- 申请人: Tsutomu Shimazaki , Akira Suzuki , Takeshi Arai
- 申请人地址: BM Hamilton
- 专利权人: ON SEMICONDUCTOR TRADING, LTD.
- 当前专利权人: ON SEMICONDUCTOR TRADING, LTD.
- 当前专利权人地址: BM Hamilton
- 优先权: JP2010-134343 20100611
- 主分类号: H02P7/285
- IPC分类号: H02P7/285
摘要:
A motor drive circuit includes: a digital filter configured to attenuate amplitude in a frequency band including a resonance frequency of an actuator in a target current signal, the target current signal being a digital signal indicative of a target value of a drive current, the drive current being supplied to a voice coil motor configured to drive the actuator; a digital-analog converter configured to convert an output signal of the digital filter into an analog signal, and output the converted analog signal as a current control signal; and a drive circuit configured to supply the drive current to the voice coil motor according to the current control signal.
公开/授权文献
- US08860338B2 Selection circuit with digital filter for VCM 公开/授权日:2014-10-14
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