搜索 - 科创

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在tb买的元件到了，花了一下午焊接，然后又自己绕了个变压器，终于完成了，晚饭也没得吃[s::L][s::L]。接了下电脑电源试了一下，万幸的是正常工作，变压器有输出哎[s::lol][s::...

前几天搭了个NE555可调占空比的电路，用来推自己扰的高压包。用示波器测量其D极波形发现有振铃现象。在一篇软开关的帖子里看过，电流和电压的波形呈180度就实现了软开关。以下是我测得的MOS管G极波形以...

首先470欧电阻对G极充电需要不少时间，这影响在低电压和高频工作时尤为突出。还有，GS之间的12V稳压管，相当于有将近一半的时间接了个上拉电阻，电源电压大于12V时，电源通过470欧电阻对稳压管放电，...

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