JavaLaurence Posted November 14, 2014 at 06:01 PM Posted November 14, 2014 at 06:01 PM 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. Quote
batti Posted November 19, 2014 at 08:35 AM Posted November 19, 2014 at 08:35 AM Hi JavaLaurence, how does this noise change if you change the load of the PSU? (by changing the number of LEDs used) Bastian Quote
JavaLaurence Posted November 19, 2014 at 08:53 AM Author Posted November 19, 2014 at 08:53 AM 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? Quote
batti Posted November 19, 2014 at 09:42 AM Posted November 19, 2014 at 09:42 AM Hi JavaLaurence, typically whistle depends on the load of the PSU. Of course its temperature will also affect it. It is good to know that your whistling seems now to be over. Quote
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