Line Power With No Transformer

hackaday.com

cross-posted to:
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Line Power With No Transformer

hackaday.com

cm0002@lemmy.world to

Hardware@programming.dev · 6 个月前

cross-posted to:
hackaday@rss.ponder.cat

Normally, when you want a low DC voltage from the AC line, you think about using a transformer of some kind. [RCD66] noticed that an AC monitor meter must have some sort of power supply but had no …

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