> In summary a solid state transformer is less efficient I'm certain this is not true, even on a Pin vs Pout basis, and certainly not on a size or weight basis.
Eddy-current losses and I2R losses are greater the lower the frequency. By choosing the frequency and the ferroresonant components carefully, one can easily get 10x the efficiency. To verify, find an old, heavy "wall wart" 60Hz transformer. Plug it in for an hour or so. Feel it. It's warm! Even with no load. Now do the same with a switcher, even one with a higher power rating. It will remain cool to the touch. Even fully loaded. But size and weight and (lack of) materials are where switching power supplies really shine. These are important concerns in a vehicle. Jan _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
