摘要
根据超声波电动机对其驱动控制单元的要求,设计了一种用于超声波电机驱动的DDS信号发生器。该信号发生器基于可编程逻辑器件(CPLD)实现,能够给出频率及相位差可调的两路正弦信号,信号特征符合超声波电机驱动需求。DDS信号发生器处于超声波电机控制系统的前向通道中,其误差分析不仅可以指导DDS信号发生器的设计,而且对于提高系统动态控制性能具有重要意义。针对超声波电动机驱动应用场合,对DDS信号发生器进行了详细的误差分析,给出了定量分析结果。
According to ultrasonic motor drive control unit, designed a DDS signal generator for ultrasonic motor-driven. The signal generator based on the CPLD, it generated the two sinusoidal signals with frequency and phase difference adjustable, and the signal characteristics with ultrasonic motor-driven demand. DDS signal generator at the front of ultrasonic motor control system, its error analysis not only could guide the design of DDS signal generator, but also had a great significance to improve the dynamic performance. According to ultrasonic motor application, this paper detailed error analysis of DDS signal generator, and gave the results of quantitative analysis.
出处
《微电机》
北大核心
2009年第4期69-72,共4页
Micromotors
基金
河南省高校杰出科研人才创新工程项目基金资助(2005KYCX007)
