Reverse engineering a TL494 based Chinese

Author	Message
davef Guru Joined: 14/05/2006 Location: New Zealand Posts: 499	Posted: 09:38am 29 Oct 2020       Hi Techie007, Thanks for posting this.  I still have a couple of these units gathering dust because I could NOT get them to work as MPPT boost supplies. The "one glaring design flaw" possibly describes one problem I had.  Having a schematic might help me understand why I had another problem, ie switching in different R values for Uvp as an attempted digitally-controlled MPPT boost supply. davef