System for controlling a one role synchronous motor in accordance with a
measured back EMF
    1.
    发明授权
    System for controlling a one role synchronous motor in accordance with a measured back EMF 失效
    根据测得的反电动势控制一个角色同步电动机的系统

    公开(公告)号:US5434492A

    公开(公告)日:1995-07-18

    申请号:US75393

    申请日:1993-06-11

    摘要: A system controls a one-pole synchronous motor, with a magnetized rotor and a stator provided with two pairs of coils. The motor includes a floating common node to which are connected first coil terminals, the second terminal of each first coil of a coil pair is connected to a first supply terminal through a first respective switch, and the second terminal of each second coil of a coil pair is connected to a second supply terminal through a second respective switch. The control system includes a circuit operable for controlling switches in a stepping or self-switching mode, and at least one detection circuit using the voltage occurring at the floating common node so as to detect at least one operation condition of the motor.

    摘要翻译: 一个系统控制一个单极同步电动机,一个磁化转子和一个带有两对线圈的定子。 电动机包括浮动公共节点,第一线圈端子连接到该公共节点,线圈对的每个第一线圈的第二端子通过第一相应开关连接到第一供电端子,线圈的每个第二线圈的第二端子 对通过第二相应开关连接到第二电源端子。 该控制系统包括可操作以控制步进或自切换模式中的开关的电路,以及使用在浮动公共节点处出现的电压的至少一个检测电路,以便检测电动机的至少一个操作状态。