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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/663711/how-to-step-down-415-c-to-5vdc
您好！
是否有一种简单的方法将415V AC 50Hz 降至5VDC @100mA？
该电路还需要物理尺寸较小。 它只为一个 PIC 微控制器和几个 LED 供电
