PC-09 · Chapter 1 · Passives & Components
MLCC acoustic noise
A product makes an audible whine when the load changes at a few kHz. Where is it coming from and how do you fix it?
| Level | ●● onsite technical |
| Track | General board |
| Really testing | Piezoelectric behaviour of class-II ceramics. |
Full worked answer: in the book, page 28 — what to say first, how to explain it, the numbers worth quoting and the follow-ups. About the book →
Going deeper
Extra explanation that is not in the book: worked numbers, where people go wrong, and how to say it in the room.
Going deeper for this question is coming.
Errata
No corrections known for this question. All errata
Ask about this question
Stuck on a step, or think something is wrong? Send it with PC-09 in the subject. Good questions get answered on this page, and corrections go into the next printing.
Related
← PC-08 Inductor soft vs hard saturationPC-10 Two-capacitor paradox →