浅谈DC／DC电源时序控制电路  

Discussion on Sequential Control Circuit of DC/DC Power Supply

作　　者：贺啟峰 

机构地区：[1]中国电子科技集团公司第43研究所,合肥230088

出　　处：《混合微电子技术》2013年第4期6-11,共6页Hybrid Microelectronics Technology

摘　　要：本文首先以具体项目设计流程为主线，列出了两类常见的DC／DC电源时序控制电路（多路输出时各路的先后时序，单路输出电压的切换时序）的解决方案，同时对每种方案的优越性及局限性进行比较、分析。其次，针对光耦隔离控制及磁反馈隔离控制DC／DC变换器分别列举了一种时序电路的接口电路。最后，预测DC／DC电源时序电路未来发展急需解决的两大难题。Firstly, the design process of the specific project is given, and the solutions of two common types of DC/DC power supply timing control circuit （ the sequence of multiplexed outputs, the timing of single output with switching voltage） are listed. The superiorities and limitations of each method are compared and analyzed. Secondly, according to the optical coupling isolation control DC/DC converter and the magnetic isolation control DC/DC converter,two interface circuits of the sequential circuit are presented. Finally, the future development of DC/DC power supply timing circuts is predicted and also with two problems are re- quired to be solved urgently.

关 键 词：时序控制 先后时序 切换时序 接口电路 

分 类 号：TN609[电子电信—电路与系统]