I was chatting with someone a few days ago and he got on to wondering why SMPS had taken over the world? I gave him the usual reply about efficiency etc. But it occurred to me that I didn't really know why, about a decade ago, SMPS started to be much more common for wall-warts etc.
My hunch is that the cost of mains voltage silicon came down to a point where it became cost effective for all PSUs to be switched mode. I am right in this assumption? Is there other reasons?
My hunch is that the cost of mains voltage silicon came down to a point where it became cost effective for all PSUs to be switched mode. I am right in this assumption? Is there other reasons?