Hi, I need a design for a led driver with 28W @ 350 mA, 82V output but it should be adaptable to provide from 24W to 33W. It seems to me that the Buck-Boost topology with an LNK409EG or LNK419EG is the most simple and economical. I've tried the PIXls Designer (Release 188.8.131.52) but for the LinkSwitch-PH the only option is the Buck topology. Could you please help me with a design spreadsheet, schematic, etc..?
Thanks in advance and best regards!