Sharing this because I just shared with a friend. This is an application note from Microchip from 2007!! that I found to be a great explanation of a lot of the switch mode power supply (SMPS) topologies that you run into. As a hobbyist, mostly you're probably dealing with buck, boost, and buck-boost. But it digs into magnetics, selection process, etc.

https://ww1.microchip.com/downloads/en/appnotes/01114a.pdf

@petrillic if you want a deeper dive, https://www.amazon.com/Switching-Power-Supply-Design-3rd/dp/0071482725

You know it's a good textbook when they're still publishing new updated editions despite most (all?) of the original authors being deceased

Switching Power Supply Design, 3rd Ed.: Pressman, Abraham I., Billings, Keith, Morey, Taylor: 9780071482721: Amazon.com: Books

Switching Power Supply Design, 3rd Ed. [Pressman, Abraham I., Billings, Keith, Morey, Taylor] on Amazon.com. *FREE* shipping on qualifying offers. Switching Power Supply Design, 3rd Ed.

@azonenberg @petrillic THREE HUNDRED DOLLARS?!
@jpm @petrillic I'm sure there's scans or used copies floating around elsewhere if you look. Can't remember what I paid for my copy but I don't remember it being that bad
@jpm @petrillic it shows 104.58 usd used price for me
@azonenberg @petrillic yeah it’s definitely the Australia Tax hitting hard
@jpm @azonenberg I mean, new from my local bookseller it's $150 USD. Makes me wonder if it's actually still in print.