METHOD FOR CONTROL OF CONTACTLESS MOTOR

摘要

Disclosed is a method for control of a contactless motor with a commutation switch mounted into a body thereof. The method consists in the following: input power supply voltage is rectified. Then, two signals proportional to the first and second voltages between one of the input terminals and correspondingly first and second rectifier input terminals are shaped. One of the signals is subtracted from another; according to the difference of the signals control signal for rotor rotation speed is formed. According to the magnitude of the first and second signals a rotational direction signal is formed.