Brushless DC motor controller bring business opportunities for chip industry
After duct fan use DC brushless motor technology, it need controller to control the operation of the brushless DC motor, which brings new business opportunities semiconductor companies.
In fact, currently the people drive brushless DC motor technology most actively is not motor manufacturers, nor air-conditioning manufacturers, but semiconductor manufacturers." Domestic air-conditioning R & D analysts said, although the gross margin of DC brushless motor is higher than the traditional motor, in a sense, the motor manufacturers are working for semiconductor companies, the gross of new motor technology profit margin is not as high as the brushless motor controller. Moreover, the demand for the controller chip in the air conditioning industry has been changed. Controller is mainly dedicated MCU / DSP two kinds. In the early days, the motor manufacturers have integrated chip in the motor controller, they generally choose dedicated control chip. But now, some air conditioning companies want to put the controller at the outside of the motor, especially for fixed-frequency air-conditioning, such trends are becoming apparent.
