双驱动足压电直线电机驱动电源的设计  

Research on Driving Power for Dual-drive Foot Piezoelectric Linear Motor with Dual-drive Feet

作　　者：于官印[1] 黄卫清[1] 刘伟华[1] 潘松[1] 

机构地区：[1]南京航空航天大学机械结构力学与控制国家重点实验室,南京210016

出　　处：《科学技术与工程》2012年第35期9491-9494,9499,共5页Science Technology and Engineering

基　　金：国家自然科学基金广东联合基金重点项目(U0934004)资助

摘　　要：设计了一种基于可编程片上系统的新型驱动器。根据非共振压电直线电机的驱动要求,设计了四路相位差分别为90°的正弦信号发生器。采用嵌入式芯片作为主处理器,结合直接内存存取数据传输技术,增大了输出信号的频率范围,提高了嵌入式系统的效率。设计了运算缓冲和线性功率放大电路,并对该电路进行了幅频特性分析。将设计的驱动器应用于非共振压电直线电机,电机驱动足交替运行,驱动信号稳定。The design of a new driver based on Programmable System on Chip （PSOC3）is proposed. Accord- ing to the requirements of piezoelectric linear motor, a signal generator providing 4-phase sin wave voltage signal with 90° phase difference is designed. The embedded chip is used as the main processor, and the DMA data trans- mission technique is adopted to increase the efficiency of the main processor. An operation buffer and linear power amplifier circuit is designed and the amplitude-frequency characteristics are analyzed. The experimental and analyt- ical results demonstrate that the driver is reliable for the piezoelectric linear motor with long-time stability and the alternation operation of the promoter.

关 键 词：非共振 交替驱动 直接内存存取 线性放大 

分 类 号：TM356[电气工程—电机]