Does anybody know the schematics of these common LM2596 buck converter with current adjustment and buck-boost converters from ebay?
I know I can easily buy it cheap but I like making my own modules for education purposes and also find it fun to make it myself. I basically aim to replicate these modules, learn how they work and see if I can improve them in anyway if possible.
Link: Buck converter
Link: Buck-boost converter
Link: Boost-buck converter