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    • 1. 发明申请
    • Stepping motor with a coded pole pattern
    • 具有编码极点图案的步进电机
    • US20120026843A1
    • 2012-02-02
    • US13270823
    • 2011-10-11
    • Larry W. FullertonMark D. RobertsJames L. Richards
    • Larry W. FullertonMark D. RobertsJames L. Richards
    • G04C3/14H02P8/08
    • G09F7/04H02K1/27H02K29/00
    • 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.
    • 本发明涉及一种步进电动机,该步进电动机具有围绕步进电动机的圆周具有预定图案的磁极图案。 在一个实施例中,该模式涉及在代码周期中具有唯一的单个最大自相关峰值的代码。 示例代码包括Barker码,PN码,Kasami码,Golomb标尺码和其他码。 在一个实施例中,转子和定子具有匹配的极图。 在一个实施例中,驱动器被布置成将线杆对准配置,或者可以将驱动器布置成以对角线配置对准极点。 在另一实施例中,在定子上设置一组或多组极点,每组都以部分磁极间隔旋转偏移。 在一个实施例中,转子最初与定子同步,通过使用基于代码自相关的单个明确的锁定位置捕获转子。