搜索 - 科创

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先上点参数和经验。参数：初级12砸2.5的多股铜线直径20cm ，次级直径16cm 0.25漆包线绕的高度好像34CM±2CM 驱动电路：CD4046驱动磁环反馈具体图...

去年暑假里的一天，我和山猫讨论关于DR驱动的问题，我说到我没有74109和7474，他说，即时没有它们，只要能过零点关断，都是可以的。我豁然开朗。原来DR专用驱动电路是要实现过零点关断的。（[s:27...

电路特点这里介绍的电子钟，电路可称得上极简，它仅使用单片的20引脚单片机完成电子钟的全部功能，而笔者见到的其它设计方案均采用二片以上的多片IC实现。电路见图1。一片20引脚的单片机STC2032（引...

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