基于磁隔离双向传输技术的一种过流保护电路的研究  

Research on Overcurrent Protection Circuit Based on Magnetic Isolation Bidirectional Transmission Technology

作　　者：邱瑞成 QIU Rui-cheng(No.43 Research Institute of CETC,Hefei 230088,China)

机构地区：[1]中国电子科技集团公司第四十三研究所,合肥230088

出　　处：《混合微电子技术》2020年第3期13-17,共5页Hybrid Microelectronics Technology

摘　　要：本文针对磁隔离双向传输技术的开关电源拓扑研究了一种实用的过流保护电路拓扑。以15W的反激式DC/DC变换器模拟实验为例,具体分析磁隔离双向传输技术的实现,以及在磁隔离拓扑中过流保护电路的实现,同时采集实验波形与理论分析进行相互印证。最后着重对比常用的短路保护电路与过流保护电路的优缺点与适配性,以优化电路设计。A practical overcurrent protection circuit topology for switching power supply based on magnetic isolation bidirectional transmission technology is studied.Taking the 15W flyback switching power supply simulation experiment as an example,the realization of magnetic isolation isolation bidirectional transmission technology and the realization of overcurrent protection circuit in the magnetic isolation topology are analyzed,and the experimental waveform is collected and verified with theoretical analysis.Finally,focus on comparing the advantages,disadvantages and adaptability of commonly used short-circuit protection circuits and overcurrent protection circuits to optimize circuit design。

关 键 词：磁隔离双向传输 DC/DC变换器 过流保护 短路保护 

分 类 号：TN402[电子电信—微电子学与固体电子学]