calsun:
DearMr.IEC60950,IhaveaquestionabouttheDC-DCconverterforwhatinsulationshouldkeeponthebetweewnprimarysideandsecondarysideaccordingtotheIEC/EN60950-1.TheinputvoltageisDC400VandtheoutputisDC75V.Isitjustkeepbasicinsulationorfunctionalinsulation?Thankyouforyourkindlyadvise.