In this video, I’ll show you three simple circuits to power ESP32, Arduino, or any project—from 12Vdc to 240Vac mains power! It is really no rocket science, the IC's are easy to use and need only 5 to 11 components. I will walk you through the datasheets to show you how to build your own mini power supply. Then I will test each circuits to show the operation in real life and compare all 3 based on performance and price.
Datasheets & schematics:
https://drive.google.com/uc?export=download&id=1E_DWHAQwM2MuMlckjNs7bDc6ewdtzdL50:00 3 ways to power your projects
0:36 Summary of 3 circuits
1:32 Circuit#1: LM2576-ADJ: 40V-1..3A
4:32 Buck converter theory DCM, CCM
7:38 Circuit#:1 LM2576: test
11:52 Circuit#2: LM2594: 40V-600mA
13:46 Circuit#2: LM2594: test
16:13 Circuit#3: MP172: 240V-120mA
20:03 Circuit#3:MP172: test
23:07 Comparison of 3 circuits
24:28 Thermal comparison