中国电机工程学报2011，Vol.31Issue(24)：105-110,6.
超声电机LLCC谐振电路研究
Study on Driving Circuit of Ultrasonic Motor With LLCC Resonant Technique
摘要
Abstract
High driving voltage is required for ultrasonic motors, so the driving circuit needs a transformer to boost voltage. Since the ultrasonic motor （USM） is a nonlinear capacitive load, a matching circuit is needed to keep the output voltage and the phase shift constant. Based on the switching circuit with push-pull topology, it was analyzed that the switching loss under inductive load is less than that under capacitive load, which will increase its efficiency and reliability. A novel LLCC resonant network was proposed and its parameters were given. Theoretical analysis and simulation were presented, which demonstrated that the output voltage and the phase shift of the resonant network can be decoupled from driving conditions, and the load characteristics can be changed from capacitive to inductive. This novel driver has been applied to the TRUM-60 type ultrasonic motor, and the experimental results have verified the effectiveness of the proposed circuit.关键词
超声电机/驱动/推挽/LLCC/谐振Key words
ultrasonic motor （USM）/driver/push-pull/LLCC/resonance分类
信息技术与安全科学引用本文复制引用
俞浦,李华峰,黄卫清..超声电机LLCC谐振电路研究[J].中国电机工程学报,2011,31(24):105-110,6.基金项目
国家自然科学基金项目（50875123,50735002) （）
国家重点基础研究发展计划项目（973计划)（2011CB707602)江苏省自然科学基金（Bk2009373). （）
