... according to customer demands, such as Supply voltage range, No noise, hall-free, power,etc.Applications: External rotor motor, centrifugal ... according to customer demands, such as Supply voltage range, No noise, hall-free, power,etc. power,etc.Applications of Brushless DC ... rotor brushless dc motor, EC motor, energy saving motor,etc. Low noise 48V BLDC Fan motor driver or controller with tach output