Quote:
Originally Posted by MazdaMatt
Arnolde - you said you had an excel sheet for calculations. See if you are happy with 1uS switching power loss compared to say, 0.1uS. Eventually you get diminishing returns by going faster and faster and you get increasing downsides.
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In other words, a switching frequency of 100kHz instead of 1Mhz?
Of course I'm happy with that :-) I'd even go lower if necessary... What I want is optimum efficiency (95% would be nice ;-) and the only reason I'd go faster (like, over 25kHz) is to reduce the size of Caps and L's.
EDIT: 0.1µS would even be 10Mhz... or am I mixing something up here?