Brushless motor controller is composed of main body of the motor and drive, is a typical electromechanical integration products, its application is more and more widely, become a kind of rapid development in the field of the model. 1, brushless motor controller as the name suggests is no brush motor controller, it is through the special circuit to change the dc motor controller in the armature current instantaneous polarity of the reversing. 2, brushless motor controller with small size, large power, no spark noise interference and long service life, etc. 3, due to the use of special circuit provides the armature current, therefore also has the characteristics of high precision of speed adjusting. Brushless motor controller because has the characteristics of a dc motor controller, as well as the frequency change device, so also known as dc inverter, it has no brush, low noise, low noise, smooth operation, long service life, low maintenance cost advantages, so the industry concern. , Sara rectification time: 2019 -5 -29