Does anybody have some info about this controller, it is used by many manufactures in SMPS, Powersoft use them in all Digimod modules.
It looks very simple..but robust solution.
mikele, could you upload a better quality pic please??...I am having trouble with a PSU and I don't find any reference to this IR2156 in PSU but Ballast use only!
Do you mean this which is attached?
IR2156 is cheap solution but I in good design this chip can work well. I know some PA equipment SMPS which is much powerful than this Powersoft partial circuit added also in my attachment - hope this help you?
Like Microsim was mention - this is cheap solution and it is not very best but you can make it more better if you want and if you get better components (almost all manufacturers uses cheap semiconductors and sometimes they are pretty prone to failures)