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