基于DSP的超声波电源控制技术的研究  

Research of Ultrasonic Source Control Technology base on DSP

作　　者：裴玖玲[1] 屈百达[1] 

机构地区：[1]江南大学通信与控制工程学院,江苏无锡214122

出　　处：《电源技术应用》2008年第8期23-28,共6页Power Supply Technologles and Applications

摘　　要：在超声波逆变电源系统中,为了降低开关损耗而广泛的采用移相SPWM技术。传统的模拟控制存在精度低、动态响应慢等缺点,在此介绍了一种基于TMS320F2812 DSP芯片的SPWM数字移相方法。该方法的特点是查表和在线计算相结合,既能满足一定的控制精度要求,又能满足实时控制的要求,还适用于带反馈控制的逆变系统中。Phase-shifting SPWM technology is widely used in the field of ultrasonic inverter power system.The traditional simulation control exists problems,such as low precision,slow dynamic response;in this paper,a digital phase-shifting control method based on DSP TMS320F2812 is proposed.The characteristic of this method is the combination of the table look-up and on-line calculation techniques,which can not only satisfy the control precision but also the real-time control requirements;this method is also suitable ...

关 键 词：数字信号处理器 数字移相技术 正弦脉宽调制 逆变器 

分 类 号：TM910[电气工程—电力电子与电力传动]