开关电源熔断器熔断分析及其在电路中的应用  

Analysis of Fusing of Switching Power Supply Fuses and Its Application in Circuit

作　　者：吕勇 LV Yong(Nanjing Research Institute of Electronics Technology,Nanjing 210039,China)

机构地区：[1]南京电子技术研究所,江苏南京210039

出　　处：《电子质量》2023年第1期73-77,共5页Electronics Quality

摘　　要：熔断器在电路保护中扮演着十分重要的角色。一般电子线路中都要采用熔断器对电路故障情况下的系统进行保护。熔断器是最简单有效的过电流保护元件,能否准确地根据电路系统的实际情况选用合适的熔断器将直接决定电子设备能否正常安全工作。以多路转换开关电源正常运行中,发生熔断故障的熔断器为样本,在计算分析、仿真的基础上,给出了一般电子设备中如何选用这类熔断器的方法。Fuse plays a very important role in circuit protection. In general electronic circuits, fuses are used to protect the system in case of circuit faults. As the most simple and effective overcurrent protection element, whether the appropriate fuse can be selected accurately according to the actual situation of the circuit system will directly determine whether the electronic equipment can work normally and safely. Taking the fuses with fuse failure in the normal operation of multichannel switching power supply as samples, based on calculation, analysis and simulation, the method of how to choose this kind of fuses in general electronic equipment is given.

关 键 词：熔断器 电压 隐患 开关电源 故障分析 保险熔断 

分 类 号：TM563[电气工程—电器]