My switching power supplies fundamentals are a bit rusty
. if I wanted to design a dc dc converter with constant input voltage but variable output voltage, what should i be looking out for in a converter/controller?
a few parameters that come to mind:
Min switch on time, determines how low the output voltage can go.
what about switching characteristics? PFM vs PSM vs PWM? this should not be an issue... I think.
feedback mechanism? again should not matter.
what else? inductor choice? angle of the sun and moon?