hi i use your product SG3525 for Solar inverter (input-dc 12v , out put -110v ac 60hz
could you recommend me how to use transformer for step up tr(T1)
how to calculate core size, coil thickness and turns for primary, and secondary
also i hope to know inductance value
i make 250w solar inverter but i didnt get enough efficiency (above 90%)
i got only 89% efficiency of them , i attached our drawing for reference(refer to page 2)
i hope to get your information and recommend value
thanks my phine no +821087880175
