Along with the development of market economy, people's living standards greatly improved, all kinds of household appliances, health care appliances, beauty appliances, such as robots have sprung up, cause the brushless motor controller consumption demand is increasing, the various models also come brushless motor controller, that how to choose the highest ratio of brushless motor controller, our company as a professional brushless motor controller manufacturers, it is necessary to share with fellow users. to reference model selection of the brushless dc motor controller of main parameters are the following: : maximum torque can be added by the load torque, moment of inertia and friction, in addition, there are some additional factors affect the maximum torque, such as the air gap of air resistance, etc. : square die torque can approximate considered practical application need continuous output torque, is decided by many factors: the maximum torque, load torque, moment of inertia, acceleration, deceleration and running time, etc. speed: this is the speed of the application requirements, according to the speed of the motor controller trapezoidal curve to determine the speed of the motor controller needs, usually calculation should have allowance of 10%. Know how to type, can be better to save time, the purchasing cost. for more details, please visit: http://www. hengdrive。 Com or email to: the sales @ hengdrive. Com, welcome new and old customers the exchange and sharing.