公开(公告)号：US3783360A

公开(公告)日：1974-01-01

申请号：US3783360D

申请日：1972-05-23

Applicant: DUNLOP LTD

Inventor： BUNDY J

IPC: H02P7/00 ,  H02P7/29 ,  H02P7/292 ,  H02P5/16

CPC classification number: H02P7/29 ,  H02P7/05 ,  H02P7/2913 ,  H02P7/293

Abstract: A control system, for maintaining an electric motor at a required speed of rotation irrespective of the externally applied load, in which a command input provides a voltage proportional to the desired speed and direction of rotation of the motor and a switching circuit supplies current to the motor as a series of current pulses of constant frequency. The switching circuit is arranged to vary the duration of the pulses of current applied to the motor in response to input signals received from the command input and two negative feed back loops, one feed back loop being arranged to feed back a voltage dependent on the actual velocity of the motor and the other on the acceleration of the motor, of which the following is a Specification.

Abstract translation: 一种控制系统，用于将电动机维持在所需的旋转速度，而不管外部施加的负载如何，其中命令输入提供与所述电动机的期望速度和旋转方向成比例的电压，并且开关电路将电流提供给 电机作为一系列恒定频率的电流脉冲。 开关电路被布置成响应于从命令输入和两个负的反馈回路接收的输入信号而改变施加到电动机的电流的脉冲的持续时间，一个反馈回路被布置为反馈取决于实际的 电机的速度和电机的加速度，其中以下是规格。