The difference between dc brushless motor and ac servo motor
Simple dc brushless motor can not do position control and can only do speed control. Ac servo can do position control and other kinds of control.
The difference is on the: 1, dc brushless motor without encoder, the brushless motor without encoder can not be used for servo control, it can only be used for power drive. Ac servo motor band encoder, which can be used for servo control.
The difference between the brushless dc motor and ac servo motor, brushless dc motor and ac servo motor, motor, its basic structure and working principle is the same , of course - are all ac synchronous motor is ac power supply, the difference only lies in what kind of controller and the encoder is linked together, and the so-called brushless dc motor by straight - inverter (electronic commutator) and system composed of ac synchronous motor, the dc power supply. The ac servo system is composed of alternating current converter (dc power supply), direct alternating inverter (electronic commutator) and ac synchronous motor, which is supplied by ac. Electric motor is an electromagnetic device that is used to convert or transfer electrical energy according to the principle of electromagnetic induction.
