00997nam a2200241 k 4500001001500000005001500015008004100030040001900071041001300090049003000103052002100133056001300154082002000167100004800187245018200235260003600417300002800453502008000481653013900561950002100700963002000721965001400741KDM198813647  20200724121911890307s1987    ulka       AX 000   kor    a011001c0110010 akorbeng0 lEM621243lEM673297c2fDP01a569.8b서657ㅈ  a569.8230 a621.38173222191 a서기영,g徐基永,d1942-0KAC20170489610a梯形波 變調信號에 의한 PWM인버어터의 特性 改善에 관한 硏究=xImprovement of characteristics for PWM inverter by trapezoidal modulating signal/d徐基永  a서울:b漢陽大學校,c1987  aii,96p.:b삽도;c26cm1 a학위논문(박사) --b漢陽大學校 大學院:c電氣工學科,d1987  a제형파a변조신호aPWM인버어터a특성a개선aIMPROVEMENTaCHARACTERISTICSaPWMaINVERTERaTRAPEZOIDALaMODULATINGaSIGNAL1 a비매품b\3900  a전기공학과  a인버터