Because of brushless dc motor controller of the characteristics of high efficiency, low calorific value, very suitable for use in the 24 hours of continuous operation of industrial machinery and air conditioning refrigeration host, fan, water pump, air compressor load, etc. Time at low speed high torque and high frequent positive &negative not the characteristics of fever, more suitable for application in machine tools and machine tool of the traction motor controller driver; The steady speed running accuracy is higher than a dc motor controller, than vector control or direct torque control speed closed-loop variable frequency drive, better cost performance, is the best choice of the modernization and timing. Because of brushless dc miniaturization, can be used in high precision electronics industry for motor size requirements. Now 15 w brushless dc motor can do 42 mm * 42 mm flange mounting surface. As some medical machinery, semiconductor, such as measuring precision electronics industry for this type of small size of the motor controller often has a special favor. Brushless dc motor controller has been able to fully replace the dc motor speed controller, frequency converter + variable frequency speed regulating motor controller, asynchronous motor + reducer speed controller. In the collection of all the advantages of traditional dc motor controller is cancelled the carbon brush and slip ring structure at the same time, the torque characteristics are excellent. Medium and low speed torque performance is good, big start torque and starting current is small, stepless speed regulation, wide speed range, overload ability. A Japanese company has been successful to brushless dc motor controller is applied to the digital camera, miniature tape recorder, video camera, printer, mobile storage, mobile phone and car air conditioners, vacuum cleaners, electric cars, the heart pumps, and other fields. So the brushless dc motor controller model experiments, the control of the test system debugging the demand is higher, the specific reference ZLG zhiyuan electronic motor controller test system.
