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> Cheap buck converters are very noisy and annoying... Yes. This is why the good ones have more parts. It's a totally fixable problem, and the parts cost to fi
by Animats 2y ago
> Cheap buck converters are very noisy and annoying...
Yes. This is why the good ones have more parts. It's a totally fixable problem, and the parts cost to fix it isn't high, but it takes extra engineering effort.
- shiroiushi 2y agoAll true, but for a hobbyist it probably isn't worth it if their goal is to just build some little audio project.
- atoav 2y agoYou are right. Yet, if you asked me how to get less noise on your audio circuit the LDO is the easier answer that will cost you less time to implement and likely give you the superior result. Especially for beginners without a ton of measuring equipment and experience having potentially bursty high frequency components in series can be an interesting way to not get the thing they were planning done, but instead have to deal with an entire new set of problems whose existence they didn't even know about. Technically you are correct, but "just slap a LDO on it" is probably the better advice.
- Animats 2y agoAgreed. I had to learn a lot to build one. I had an application so unusual (driving antique teletype machines from a laptop) that I had to do a unique design. For most low-volume applications, it's not worth the trouble.