Brushless motor controller has no brush, low interference, low noise, smooth operation, etc, in enterprise production, has a very important role in work. Below for everyone to introduce brushless motor controller features. Brushless motor controller with high efficiency, high torque, high precision of the three high characteristics; Also has small volume, light weight, volume can be made into various shapes, is now the highest efficiency of the speed regulating motor controller, compared with traditional dc motor controller, or have a better performance compared with ac frequency control of motor speed; In the traction motor controller, storage battery ev industry instead of the traditional dc motor controller can achieve higher efficiency, higher activation torque features, such as by using square wave drive, allow time repair plate electrode lead-acid batteries, can extend the life of the battery, increased by 1. Three times the battery capacity, can improve the comprehensive efficiency about double battery capacity, greatly improve the performance of the storage battery.