The cooling fan is mainly composed of two parts: a stator and a rotor.

Working principle: According to the change of the rotor position, the position sensor commutation of the stator winding current in a certain sequence is to detect the position of the rotor pole relative to the stator winding, and generate a position sensing signal at a certain position, through the signal conversion circuit After processing, the power switch circuit is controlled, and the winding current is switched according to a certain logical relationship. The working voltage of the stator winding is provided by an electronic switch circuit controlled by the output of the position sensor.

The above information comes from Dongguan Yinhai Electronics Co., Ltd. ( www.yinhaidg.com ), an enterprise focusing on the R&D and production of cooling fans . Please indicate the source for reprinting!