摘要:在以往的工程应用中,对DC/DC变换器的寿命评估多采用以温度为加速应力的加速寿命试验来预测,而忽略了其他环境应力对DC/DC变换器的影响。文章选用一款型号为K241203的中小功率DC/DC变换器为研究对象,通过分析选取温度(高温)和电应力(电流)作为加速应力对其进行加速寿命试验,预测了其在正常应力下的寿命,对解决高可靠DC/DC变换器的寿命预测问题具有较好的工程意义。
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