摘要
介绍了SG3525芯片的内部结构,分析了其特性和工作原理,设计了一款基于SG3525可调占空比的推挽式DC/DC开关电源,给出了系统的电路设计方法以及主要单元电路的参数计算,并对该电源进行了性能测试。实验表明,该电源具有效率高、输出电压稳定等优点。
The internal structure of SG3525 chip is introduced,and its characteristics and working principle are analyzed.An adjustable duty cycle push-pull DC / DC switching power supply based on SG3525 is designed,and the design method and practical circuit are described.Finally,the tests of the power supply performance are given.Experiments show that the power supply have the advantages of high efficiency,stable output voltage and so on.
出处
《电子科技》
2011年第6期118-121,共4页
Electronic Science and Technology
