摘要
介绍了一种采用数字和模拟混合控制的交流电源。该交流电源不仅能够输出频率幅值可调的正弦电压,而且能够输出周期性畸变电压。该电源采用数/模混合控制及重复控制方法,数字部分实现高精度的波形发生器和电压有效值控制;模拟部分采用电压电流瞬时值控制,提高响应速度。最后给出测试波形。
In this paper ,an AC power supply based on D/A mixed control is proposed. The AC power supply is able to produce the sine voltage,and it＇s frequency and breadth value can be adjusted. Furthermore, the seasonal aberrational voltage is produced. The power supply adopts D/A mixed control and repetitive control. The digital part realizes the high precise waveform generator and the control based on voltage virtual value. The analog part adopts the control based on current virtual value and improves the response speed. The test waveform is presented at the end of this paper.
出处
《现代电子技术》
2005年第22期110-112,118,共4页
Modern Electronics Technique
关键词
数模混合控制
重复控制
波形发生器
异步查表
D/A mixed control
repetitive control
waveform generator
asynchronism check table
