... 2000W,and the power supply is 220V AC. vacuum cleaner controller(PCB,PCBA,LED): 1)The technology is ... used in high-power single-phase series excited motor, for a variety of high-power inductive and ... of the technology, the motor frequently switch case, it will not reduce the motor life. 2)The phase ... angle adjustment techniques to adjust motor power, the technology small size, good stability ...