The subdivision control is realized by commutating the phase current of the motor. Taking the motor commutation device as an example, if the rated phase current of the motor is 3A, if the conventional commutation (such as the commonly used constant current chopping method) is used, the motor , every step of the motor operation, the current in the winding will change from 0 to 3A or from 3A to 0. The huge change of phase current will inevitably cause vibration and noise of motor operation.
If subdivided commutation is used, and the motor is commutated in the state of 10 subdivisions, the current in the winding changes only 0.3A instead of 3A for each microstep of the motor, and the current changes in a sinusoidal law, so that The vibration and noise of the motor commutator are greatly improved. Therefore, the advantage in performance is the real advantage of subdivision.
Since the subdivision commutation needs to control the phase current of the motor, the stepper motor commutator must have very high technical requirements and process requirements, and the cost will also be high, namely:
1. "Smoothing" does not control the phase current of the motor, but only slows down the rate of change of the current, so "smoothing" does not generate microsteps, and the subdivided microsteps can be used for positioning.
2. After the phase current of the motor is smoothed, it will cause a decrease in the motor torque, and the subdivision control will not cause a decrease in the motor torque, on the contrary, the torque will increase.
Zhejiang Anrui Electric Appliance Co.Ltd. is a professional manufacturer of hook type commutator located in Yuyao city, Zhejiang province. We have over 100 employees and have a complete product line with more than 200 kinds of production models, making us to be one of the most potential manufacturers of commutators in China. We keep long-term and stable cooperative relationships with many famous electric machinery production enterprises in China. With strict quality control，continuous technology innovation and equipment improvement, our products are widely recognized by our customers. As a customer-centric and quality-oriented manufacturer, we will keep providing high-quality products and services. We look forward to the win-win cooperation with more global clients.