摘要
提出移相全桥DC/DC变换器闭环系统设计方案,基于PWM控制器件UCC3895设计一个双闭环控制系统,该系统采用电压外环和电流内环的控制方式,在电压环中引入双零点、双极点的PI补偿,电流环中引入斜坡补偿,结合实际应用对闭环系统进行实验测试,结果表明所设计的闭环系统动态响应快,稳定性好。
A design scheme of phase-shifted full-bridge DC/DC converter double closed-loops system is proposed,and a double closed-loops system is designed based on PWM controller UCC3895.As the outer-loop is controlled by voltage and inner -loop by current,a double zero,double pole compensation network is introduced in voltage loop and a slope compensation network is introduced in current loop.The experimental test of the system is carried out which shows that the closed-loops system has quickly dynamic response and good stability.
出处
《电子设计工程》
2010年第1期84-85,共2页
Electronic Design Engineering
