发明名称 VCM control circuit
摘要 A method of controlling a moving part of a voice coil motor to move from an first position to a second position, wherein the position of the moving part is controlled by the level of an electrical signal applied to a coil of the voice coil motor, a first level of the electrical signal corresponding to the first position, and a second level of the electrical signal corresponding to the second position, the method including: at a first time, changing the electrical signal from the first level to an intermediate level, the intermediate level being chosen such that a peak overshoot of the moving part corresponds to the second position; and at a second time calculated to correspond to a delay of half an oscillation period of the moving part after the first time, changing the electrical signal to the second level.
申请公布号 US8222841(B2) 申请公布日期 2012.07.17
申请号 US20080254641 申请日期 2008.10.20
申请人 LULE TAREK;STMICROELECTRONICS (GRENOBLE) SAS 发明人 LULE TAREK
分类号 H02P1/00 主分类号 H02P1/00
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