What is cool whine and how can it be decreased?

Question

I’ve seen a lot about “coil whine” over the years, referring to laptops mostly, and a lot more complaints more recently.

Is this bad manufacturing and design?

How can it be alleviated?

In: 1

Answer 1

It’s a blanket term for all EM-induced vibrations that lead to audible noise, and generally yeah it’s something you either want to avoid or mitigate with sound dampening materials.