Recommended · for some experience

How Does a Switching Power Supply Work 1 (schematic, explanation, example, modifications)

Why people recommend it

DiodeGoneWild's explainer on switch mode power supplies is praised for showing clearly how they turn mains AC into regulated DC using high-frequency pulses.

Watch for: Long, and reportedly the first of three parts

In their words

This guy from Czech Republic does an amazing job of explaining electronics.
hacktastical on electronics.stackexchange.com, Feb 2020. CC BY-SA.

If you liked this

850W computer power supply - how does it work (with schematics)

DiodeGoneWild 8 people · 7 months · since Jun 2019
24V 10A 240W power supply - test, failure, teardown and fix

DiodeGoneWild 4 people · 4 months · since Aug 2019
Laptop power supply with PFC - teardown and repair (BOOM!)

DiodeGoneWild 3 people · 3 months · since Dec 2020
12V 10A switching power supply (with schematic and explanation)

DiodeGoneWild 3 people · 3 months · since Jul 2023
What is a Transformer? An Electrical Transformer Tutorial

Afrotechmods 5 people · 5 months · since Feb 2011
EEVblog #90 - Linear and LDO regulators and Switch Mode Power Supply Tutorial

EEVblog 6 people · 6 months · since May 2011