重庆大学学报2026，Vol.49Issue(5)：30-42,13.DOI:10.11835/j.issn.1000-582X.2025.203
1mm柱状压电超声波电动机的驱动电路设计与实现
Design and implementation of the driving circuit for a 1 mm cylindrical piezoelectric ultrasonic motor
摘要
Abstract
The performance of the driving circuit is critical for the stable and high-precision operation of micro piezoelectric ultrasonic motors.To meet the low-voltage drive and high-speed operation requirements of a 1 mm micro cylindrical piezoelectric ultrasonic motor,a transformer-inverter booster push-pull driving circuit based on the digital signal processing(DSP)28335 chip is proposed.The DSP 28335 generates four pulse-width modulation(PWM)signals,which alternately drive four MOSFET switches.The inverter boosts and amplifies the voltage through a transformer,and an LC matching circuit filters the output to produce sinusoidal waves with equal amplitude and 90° phase difference,driving the motor.Detailed hardware and software design analyses are presented.Simulation and experiment results show that the output voltage is adjustable from 0 V to 100 V and the frequency from 15 kHz to 50 kHz.The no-load speed of the motor increases linearly with excitation voltage,reaching 480 r/min at 22 kHz and 50 V,satisfying the driving requirements of the 1mm cylindrical piezoelectric ultrasonic motor.关键词
微型超声波电动机/压电陶瓷/驱动电路/高频低压/DSPKey words
micro ultrasonic motor/piezoelectric ceramics/driving circuit/high frequency and low voltage/DSP分类
信息技术与安全科学引用本文复制引用
李康康,汪御飞,张海彬,陈渊博,王光庆..1mm柱状压电超声波电动机的驱动电路设计与实现[J].重庆大学学报,2026,49(5):30-42,13.基金项目
浙江省教育厅一般科研项目资助(Y202352692).Supported by Scientific Research Fund of Zhejiang Provincial Education Department(Y202352692). （Y202352692）
