你有没有想过,家里的手机充电器、笔记本电源,为什么能把墙上 220V 的交流电变成设备需要的 5V、3.3V 直流电?今天就带大家深入了解 AC-DC 的奥秘,从转换原理到 PCB 设计,干货满满! 为什么非要 AC 转 DC? 日常电器如手机、路由器等,大多需要 5V、3.3V 的直流 ...
[xsdb] had a real problem. His JBL L8400P 600 watt subwoofer went up in flames – literally. Four of the large capacitors on the board had bulged and leaked. The electrolyte then caused a short in the ...
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