Recommended · for some experience
H Bridge Motor Speed Controller Tutorial
Why people recommend it
Afrotechmods explains a discrete MOSFET H-bridge motor speed controller; suggested for people moving beyond driver modules to understand the basics.
In their words
Initial Idea: I followed this video from Afrotechmods and built a circuit in the picture below.
Agriculex on electronics.stackexchange.com, Nov 2021. CC BY-SA.
For the discrete MOSFET version, you could look at
got trolled too much this week on electronics.stackexchange.com, Nov 2015. CC BY-SA.