DC-DC电源模块的失效分析

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【摘 要】文章以隔离型DC-DC电源模块在实际使用中发生的功能失效作为研究背景。首先,介绍该电源模块的启动电路和工作原理。其次,通过电源模块实物拆解和元器件分析,定位到稳压二极管故障。最后,针对二极管故障追溯其失效原因,同时给出电源模块的设计和使用建议。
【关键词】电源模块;稳压二极管;泄漏电流;实际失效
中图分类号:U463.6 文献标识码:A 文章编号:1003-8639( 2024 )12-0033-03
Failure Analysis of DC-DC Power Module*
【Abstract】Based on the research background of the failure of isolated DC-DC power module in practical use, the starting circuit and working principle of the power module are introduced. Through the disassembly analysis of the power module, the fault of the voltage regulator diode of the component is found, the failure reason is analyzed, and the design and use of the power module are given.
【Key words】power module;zener diode;leakage current;actual failure
DC-DC(直流/直流转换)电源模块是一种通过功率半导体开关器件实现DC/DC功率变换的开关电源,广泛应用于通信、汽车和航天等领域。(剩余4786字)