您好,欢迎访问三七文档
当前位置:首页 > 临时分类 > 开关电源高频变压器AP法计算方法
APAP=AwAeAPcm4Aw(cm2)Ae(cm2)AeSj=CDSjCDAPAP1(PWM)()()3(Kf)(kf)(kP)1)Kfee=ddt=d(NABsint)dt=NABocostNAB=2fKf=2*=4.442)kf(URMS)KfkfKf=4kf461D=tT2AP()U1NPBACTf,KfAe(cm2)Kf=4kfUSNSA/cm2)S=IJKWI1I2(5)(6)(8)S=PI+PO=PoPIPo+PI=Po+Po=(1+)Po(10)AP(11)KBAC(DCM)(CCM)1(a)(b)(MOSFET)tONTD=tONTk'f1kf=1.155(12)k'f=1.115D(11)1.115DBAC)(BM)KRPIRIPKRP1KRP=1ZZ=0Z=10Z=0.5BAC=0.5BMKRPk'f=1.115DBAC=0.5BMKRP(11)AP(14)APcm4PoWJ=200600Acm2(26Amm2)KW=0.30.4(KRP=1)(14)(KRP1)KRP=0.8(14)Dmax0.5D=0.4=80KW=0.4J=400Acm2(14)(15)(17)(14)AP3AP60W85265V+12V5AAP=80PO=60WKW=0.35D=0.5BM0.20.3TBM=0.25TKRP=0.7f=100kHz(14)AP=0.48cm4lEI28AP=0.58cm4EI30AP=0.91cm4Ae=1.09cm2AeSj=0.15PMAe=1.16cm22EI33Ae=1.18cm2EI334AP()AP
本文标题:开关电源高频变压器AP法计算方法
链接地址:https://www.777doc.com/doc-8698068 .html