多路单端反激式开关电源的设计  

Multi-channel Single-chip Flyback Switching Power Supply Design

作　　者：董砚[1] 刘东波[1] 孙鹤旭[1] 刘汉奎[1] 

机构地区：[1]河北工业大学电气与自动化学院,天津300130

出　　处：《河北工业大学学报》2010年第3期60-64,共5页Journal of Hebei University of Technology

摘　　要：设计了一种基于TOPSwitch-GX的开关磁阻电机调速用多路单端反激式开关电源.在了解TOP系列芯片内部结构和工作原理的基础上,讨论了最优化电压变换器以及输入、输出电路的设计,简单介绍了箝位电路.为了避免连续电流工作模式的右半平面零点影响,设计了基于TL431和光耦PC817的反馈补偿网络.最后通过电源的实际输出波形得出结论.A flyback Multi-channel switching power supply which designed for a SRM （Switched Reluctance Motor） controlsystem. Based on understanding the internal structure and working principle ofthe TOP ehips, research the design ofoptimum voltage converter and the input and output circuit, giveabriefintroductionoftheclampcircuit. The feedback loop based on the TL431 and PC817 designed in order to avoid the effect of the right half Plane zero. And the optimal circuit parameters of the feedback loop are obtained by analyzing the transfer function of the feedback loop. With the actual output waveform of the power get the summing-up in conclusion.

关 键 词：多路 开关电源 变压器的设计 反激 TOPSWITCH-GX 

分 类 号：TM464[电气工程—电器]