Thread: PD Board Noise?
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Unread 09-01-2013, 11:13
DjScribbles DjScribbles is offline
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Re: PD Board Noise?
The two possible causes are loose inductor coils, or the natural switching noise in the power supply circuit.

Both are harmless, but if it bugs you it doesn't really hurt to use your old PD board (as far as I know). You'll see this issue happen in Desktop PC power supplies, LCD/CRT displays, and all sorts of other electronics from time to time, it's considered harmless (but kinda annoying).