Circuit diagram of DC motor speed measurement.
Motor is the main driving equipment. At present, KZ-D drive system which uses thyristor (SCR) devices to supply power to the motor has been widely used in electric drive system, replacing the bulky F-D system in generator-motor system. With the continuous development of microelectronics technology, small and medium power DC motors are controlled by single chip microcomputer, and the speed regulation system has high frequency and fast response.