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    • 10. 发明授权
    • Motor drive apparatus
    • 电机驱动装置
    • US4507771A
    • 1985-03-26
    • US496567
    • 1983-05-20
    • Toshio Tanaka
    • Toshio Tanaka
    • G11B17/049G11B17/00G11B17/02G11B17/04G11B21/02H02P7/288G11B3/36
    • G11B17/049G11B17/00G11B21/02
    • A motor drive apparatus for a disc player which includes a pickup, a pickup shift mechanism for shifting a position of the pickup and an automatic loading mechanism for loading a jacketed disc into the disc player. The motor drive apparatus comprises a motor for actuating the pickup shift mechanism and automatic loading mechanism, a servo controller for servo-controlling the rotation of the motor according to the position of the pickup so that a tracking servo control for the pickup is effected by the pickup shift mechanism, a position sensor for sensing the position of a jacket of the jacketed disc, an actuation controller for controlling the rotation of the motor according to the position of the jacket so that automatic loading of the jacketed disc is performed, and a mode instructor for selectively connecting one of the servo controller and actuation controller to the motor. Only the tracking servo control is effected when the mode instructor connects the servo controller to the motor, and only the automatic loading of the jacketed disc is effected when the mode instructor connects the actuation controller to the motor.
    • 一种用于光盘播放器的电动机驱动装置,其包括拾取器,用于移动拾取器的位置的拾取变速机构和用于将夹套盘装载到盘播放器中的自动装载机构。 马达驱动装置包括用于驱动拾取换档机构和自动装载机构的马达,伺服控制器,用于根据拾取器的位置对马达的旋转进行伺服控制,使得拾取器的跟踪伺服控制由 拾取换档机构,用于感测夹套盘的夹套的位置的位置传感器,用于根据夹套的位置控制马达的旋转的致动控制器,从而执行夹套盘的自动加载,以及模式 指导者用于选择性地将伺服控制器和致动控制器中的一个连接到电动机。 当模式指示器将伺服控制器连接到电动机时,仅实现跟踪伺服控制,并且当模式指导者将致动控制器连接到电动机时,仅实现夹套盘的自动加载。