Due to the cancellation of the position on the DC motor body, all the hardware is placed in the electronic switch circuit to reduce the size and cost of the DC motor. Because the conduction and commutation time of each phase winding can no longer depend on the position sensor signal, a magnetic pole position detection circuit is added to the control circuit. Since the accurate rotor position signal is generally difficult when the motor is stopped or the speed is low It is detected, so BLDC without position sensor generally needs a special starting circuit, and other links are the same as BLDC with position sensor.
Zibo Zemei Motor Co., Ltd.
Address: Bei'an, Zhoucun District, Zibo City
Zemei Electric Wenzhou Office
Address: Qiaoertou, Lucheng District, Wenzhou