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voltage - 230V AC to 5V DC converter, lossless - Electrical Engineering Stack Exchange
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日期：2024-09-09
It's very nice to have no external components required (or, at least very few compared to the typical support for a switched mode DC-DC converter IC). But those are pricey ($20-$40). Is there anything available in the $3 range? (even just DC-DC that goes ...看更多
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