直流无刷电机具有响应快速、较大的起动转矩、从零转速至额定转速具备可提供额定转矩的性能，但直流电机的优点也正是它的缺点，因为直流电机要产生额定负载下恒定转矩的性能，则电枢磁场与转子磁场须恒维持90°，这就要藉由碳刷及整流子。碳刷及整流子在电机转动时会产生火花、碳粉因此除了会造成组件损坏之外，使用场合也受到限制。交流电机没有碳刷及整流子，免维护、坚固、应用广，但特性上若要达到相当于直流电机的性能须用复杂控制技术才能达到。现今半导体发展迅速功率组件切换频率加快许多，提升驱动电机的性能。微处理机速度亦越来越快，可实现将交流电机控制置于一旋转的两轴直角坐标系统中，适当控制交流电机在两轴电流分量，达到类似直流电机控制并有与直流电机相当的性能。
Zibo Boshan Porphyrin motor factory is a professional manufacturer of micro motors. The main products are:brushless dc motor. Communication department of motor.The dc motor.Gear motor.The dc speed control power supply and all kinds of special machine. Products are widely used in;Aerospace, transportation, energy, metallurgy, machinery, light industry, textile, medical apparatus and instruments, etc. Our company has always been committed to the progress of science and technology and the improvement of product quality, adhere to the quality strives for the survival, to the purpose of the credibility of development, continuously explore, can according to user requirements to undertake the development of all kinds of motor. The design and manufacture. Welcome new and old friends visit. Common development.
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