... signal input. What is EC Motor? Brushless DC Motor with electronically commutated.What is the ... important part in EC Motor? motor driverElectronically commutated motors can be connected direct ... hall-free, power,etc.Applications: External rotor motor, centrifugal fan, centrifugal blower, axial fan in ... ,etc. power,etc. 230V AC three phase electronically commutated ec fan motor driver controller