Recommended · for beginners
Boost Converters and Buck Converters: Power Electronics
Why people recommend it
Animated explanation of buck and boost converters that builds up from flawed designs, showing voltage as height and current as arrows; recommended for intuition about inductors.
Watch for: converter section from 4:01
In their words
Have a look at [video] for some good insights into how switching converters work.
Transistor on electronics.stackexchange.com, Sept 2022. CC BY-SA.