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公开(公告)号:US4506203A
公开(公告)日:1985-03-19
申请号:US434154
申请日:1982-10-13
CPC分类号: G05D3/16
摘要: A circuit for controlling the position of a driven member is disclosed which includes a control circuit for controlling the application of electrical power to a motor and a circuit element operable for generating position error signals corresponding to the position of the load which may in one embodiment constitute a rotor element of the motor. A comparator section is provided for comparing the position error signals with position reference signals and for generating control signals to effect rotation of the load in a desired direction. In one embodiment, the error signal is generated by a feedback loop including a potentiometer having a movable element coupled to the load or motor rotor, wherein the voltage magnitude of the error signal is varied in accordance with the rotational position of the load or rotor element. In a preferred embodiment, the comparator section includes first and second comparators respectively responsive to position deviations of the rotor in first and second rotational directions.
摘要翻译: 公开了一种用于控制从动构件的位置的电路,其包括用于控制向电动机施加电力的控制电路和用于产生对应于在一个实施例中构成的负载位置的位置误差信号的电路元件 电动机的转子元件。 提供比较器部分,用于将位置误差信号与位置参考信号进行比较,并用于产生控制信号以实现所需方向上负载的旋转。 在一个实施例中,误差信号由包括具有耦合到负载或电动机转子的可移动元件的电位器的反馈回路产生,其中误差信号的电压幅值根据负载或转子元件的旋转位置而变化 。 在优选实施例中,比较器部分包括分别响应于转子在第一和第二旋转方向上的位置偏差的第一和第二比较器。