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 oooo more things to put in my 800# pile of "books I really absolutely plan to read sometime soon". As soon as I finish Bogatin's Signal and Power Integrity.
@petrillic do you have Dunsmore yet? More on the RF than power side

@azonenberg I do not. Nor am I familiar. Yet more to learn!

Have you ever thought of putting together a reading list? I think it'd be one of those things that would be super helpful with some "paths" to go down. RF, FPGA, high-speed/SI, etc.

@petrillic https://onlinelibrary.wiley.com/doi/book/10.1002/9781119477167

Both books I've consulted from time to time but not had the time to properly study in depth

@azonenberg VNA is definitely an area I know 1% of what I feel like I should. Although this has saved me from buying some 80# piece of Agilent test gear.
VNA400 – 40 GHz Vector Network Analyzer | Signal Hound

Signal Hound's VNA400 is a high-performance USB-powered, 40 GHz two port vector network analyzer, with a sweep speed of 2000 points per second at 30 kHz RBW

Signal Hound
@azonenberg hah! The antithesis of my NanoVNA
@petrillic i mean it's probably the cheapest 40 GHz VNA out there so there's a lot of tradeoffs. I don't wanna know what a fancy R&S in the same bandwidth range would cost

@azonenberg I think a ZNB would be around $90k? I have seen some ZNB with the base performance (I think 8.5?) for around $20k.

A bargain!