搜索 - 科创

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妈的，搞不定，老老实实的把原来的发上来吧。数理方法上有句话确实对，这些定解问题只有极少数是可以先求出通解再结合特殊情况的……接下来，我们看看第二个命题。驻波，即波动能量不发生传递，振幅随空间的分布不变...

引用第31楼rb-sama于2012-10-16 10:48发表的 :既然是要合作我提出几个我的建议：1：你直接用低压二极管做高压整流全桥，这样超负荷使用。在最终封装的时候，寿命和有效工作时间都会...

瞄了一下50ud的pdf。Ciss=4000pF，Crss=52pF，那就可以进行计算（平均电流）这里C1对应Crss，C2对应Ciss 然后计算给C2充电电流，当时我是用18V供电利用公式I=Q/...

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