发明申请
- 专利标题: Stepping motor with a coded pole pattern
- 专利标题(中): 具有编码极点图案的步进电机
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申请号: US13270823申请日: 2011-10-11
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公开(公告)号: US20120026843A1公开(公告)日: 2012-02-02
- 发明人: Larry W. Fullerton , Mark D. Roberts , James L. Richards
- 申请人: Larry W. Fullerton , Mark D. Roberts , James L. Richards
- 申请人地址: US AL New Hope
- 专利权人: Correlated Magnetics Research LLC
- 当前专利权人: Correlated Magnetics Research LLC
- 当前专利权人地址: US AL New Hope
- 主分类号: G04C3/14
- IPC分类号: G04C3/14 ; H02P8/08
摘要:
The present invention relates to a stepping motor with a magnet pole pattern having a predetermined pattern around the circumference of the stepping motor. In one embodiment, the pattern relates to a code having a unique single maximum autocorrelation peak over the period of the code. Example codes include Barker codes, PN codes, Kasami codes, Golomb ruler codes, and other codes. In one embodiment, the rotor and stator have a matching pole pattern. In one embodiment, the drive is arranged to align the poles in an inline configuration, alternatively, the drive may be arranged to align the poles in a diagonal configuration. In a further embodiment, one or more sets of poles are provided on the stator, each set being offset rotationally by a partial pole spacing. In one embodiment, the rotor is initially synchronized with the stator by capturing the rotor using a single unambiguous lock-in position based on the code autocorrelation.
公开/授权文献
- US08174155B2 Stepping motor with a coded pole pattern 公开/授权日:2012-05-08
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