摘要
为了设计基于Si8250的数字电源补偿器,采用该芯片专有的GUI图形仿真软件,对功率级主电路的开环模型进行了仿真,生成了幅频和相频特性曲线。结合了Venable补偿理论与GUI中的控制环路模型及图形化补偿方式,设计了精确的数字PID补偿器。试验表明,通过GUI设计的数字补偿器具有很好的环路动态特性和稳定性。
In order to design the digital power supply compensator based on Si8250, a special visual simulation software of GUI was adopted; an open-loop model of main power circuit was simulated, and the magnitude-frequency characteristic curve and phase-frequency characteristic curve were obtained. Combined the compensating theory of venable and visual compensating method of loop control model of GUI; designed a precise digital PID compensator. The good loop dynamic characteristic and well stability of the digital compensator designed by GUI were both showed in the testing results.
出处
《电源技术应用》
2008年第7期27-32,共6页
Power Supply Technologles and Applications
