Title :
Phase shifted ZVT-PWM high-frequency full-bridge inverter with auxiliary resonant nets for driving ultrasonic motor
Author :
Li, Youguang ; Chen, Zaili
Author_Institution :
Sch. of Mechtronic Eng., Harbin Inst. of Technol.
Abstract :
In this paper, a prototype of phase shifted zero-voltage-transition (ZVT) PWM high-frequency inverter using MOSFET is presented for driving traveling ultrasonic motor. This kind of driving power adds a pair of resonant nets to the conventional full-bridge inverter to help each power switch to realize ZVT. The mechanism of resonance is evaluated and discussed on the basis of analysis and experimental results. It is proved that this kind of inverter is more suitable for driving USM
Keywords :
PWM invertors; bridge circuits; motor drives; phase shifters; power MOSFET; switching convertors; ultrasonic motors; MOSFET; auxiliary resonant nets; high-frequency full-bridge inverter; phase shifted ZVT-PWM; power switch; traveling ultrasonic motor drives; zero-voltage-transition; Frequency; MOSFET circuits; Prototypes; Pulse width modulation; Pulse width modulation inverters; Resonance; Semiconductor devices; Stress; Switching loss; Voltage; PWM; USM; control mode; driving power; soft switching;
Conference_Titel :
Electrical Machines and Systems, 2005. ICEMS 2005. Proceedings of the Eighth International Conference on
Conference_Location :
Nanjing
Print_ISBN :
7-5062-7407-8
DOI :
10.1109/ICEMS.2005.202881
