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High Pitched Whistle from 5V 8A AC/DC Power Adapter


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Posted

Hi,

 

Another PSU question. I'm hearing an extremely high pitched whistle from the PSU powering my LED strip. Since my LED strip is used in a wall clock, I cannot have *any* sound coming off the setup...

 

Googling for the subject turns up lots of hits, but I was wondering if there's anything easy I can do to this particular TF model to stop the whistling? I don't know enough about electricity/electronics to try different things..

 

Thx.

 

Posted

The whistle attributes (pitch, volume) didn't seem to correlate with any loading of the LEDs. But after about 20 minutes the whistle faded away. My project has been running 24/24 for nearly a week now, and the whistle hasn't returned. So maybe the PSU simply needs to warm up a bit?

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