Many people use the brushless motor controller for the first time, to choose what kind of brushless motor controller is very confused. To choose suitable brushless motor controller from the performance of the product, price, and so on and so forth parameters comprehensive evaluation. For any industrial components and the principle of choosing the raw materials are in the lowest cost to meet the requirement of the appropriate '. The cost of brushless motor controller mainly in the driver board, so the price of single phase is far less than three phase. Exterior rotor brushless motor controller only so cheap, mainly external rotor motor controller can use single phase power. Single phase has the advantage of low price, the disadvantage is that the torsion is small, low power. Single-phase outer rotor to three-phase torque of the same, the size of the motor controller to do. Some on the occasion of torque requirement is not high, such as driving blades, etc. , with the outer rotor is enough. Inner rotor brushless motor controller price is high, its speed is fast, torque force is big. Such as car vacuum cleaner brushless motor controller is used inside the rotor, the speed up to more than thirty thousand turn! Inside the rotor is usually three phase, but the inner rotor capacity is low, the rotor winding way more complicated than the outer rotor, the much lower capacity, mass production test capacity of the factory. Inner rotor brushless motor controller is usually dozens of yuan a price, the price of power is higher, general high-end occasions to use them. Say again brushless deceleration motor controller. Brushless motor controller at present is given priority to with low power, high power of more than 1 kw brushless motor controller is a high price. Therefore, under the condition of large torque, ordinary brushless motor controller plus with reducer is used, usually at this point, the reducer is short. Performance good reducer, such as planetary reducer price is very high, its life can reach 8000 hours, while the common reducer of low price, but life is only 2000 hours. That kind of thought that the life of the gear motor brushless controller is as high as tens of thousands of hours of ideas, is to ignore the reducer. The price of carbon brush motor controller with reducer usually as long as 10 yuan, but the service life for only a few tens of to hundreds of hours. Brushless motor controller with planetary reducer, the price is in one hundred dozens of yuan a, increased the service life of more than a dozen times, but the cost has increased by ten times! The price of a planetary reducer is 60 yuan. With brushless motor controller with common reducer, prices are much lower, but personally feel a little waste of the performance of the motor controller. For rotational speed is low and rotation can be precisely controlled, do not recommend using normal brushless motor controller. Then can choose stepper motor controller. Stepping motor controller is a kind of brushless motor controller, also need to drive. Mini stepper motor controller low prices, but also lower torque, Angle, of course, can be precisely controlled, mini stepper motor controller due to the torque is too low, usually used with reducer. High power stepping motor controller is high price. Model aircraft for the motor controller for small volume, short time power big motor controller, you need to use to model aircraft motor controller. Rc motor controller cost is quite high, mainly its shell is yard processing, and its use of common ferrite magnets are not, but the price is very high iron 錋 neodymium magnets. As long as does not consider cost, ordinary motor controller combined with strong magnets, as well as performance.
