I have a set of wireless headphones with a charger. the charger is the same size as the 240v mains plug! (it is the mains plug in fact - embedded into it). How is that done? I assume there is no transformer but to step the voltage down without much heat?? I assume the current is very low of course.
H.
"HardySpicer"
** It just another example of a SMPS.SMD components allow them to be made very small, when the output rating is only a couple of watts.
..... Phil
Probably a switching PS.
Hope This Helps! Rich
as others have said
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