LLC参数设计(A840)已知:输入电压(VinMAX):390V输入电压(VinMIN):380V输出电压(VOUT)53.5V输出电压(VOUTmin)42V输出电压(VOUTmax)58V输出功率(P):856W电流16A谐振频率(Fr)110KHzK值6求解:变压器匝比(n):3.57798165最大增益Mmax1.11105746等效输出阻抗RAC34.6732888最大Q值Qmax0.47830808最小工作频率fmin75.2026996谐振网络参数16.5845140.0872860724.0076925144.046155变压器原副边匝数计算已知:磁芯中心柱面积(Ae):161(mm)磁场强度(ΔB):0.32(mT)NP=17.5199377则NS=4.896597973.51.086842(Ω)33.178360.515434(KHz)79.37469(Ω)17.10125(uF)0.084649(uH)24.75572(uH)148.5343取NP=14取NS=4已知:输入电压(VinP-P):440V输入电压(Vin):220V输出电压(VOUT)375V输出电压(VOUTmin)350V输出电压(VOUTmax)380V输出功率(P):2625W电流7谐振频率(Fr)55KHzK值3.75已知:磁芯中心柱面积(Ae):354(mm)磁场强度(ΔB):0.32(mT)C*U*U*Fr=PCr=0.2465252(uF)0.22Fr=Lr=34.109816(uH)38.22248.886534815.147503全桥LLC参数设计CrLr*21ALLC参数设计已知:输入电压(VinMAX)450V输入电压(VinNOM)400输入电压(VinMIN)320V输出电压(VOUT)380V输出电压(VOUTmin)300V输出电压(VOUTmax)400V输出功率(P):3230W电流8.5谐振频率(Fr)115KHz最大切换频率(Fmax)350KHzK值0.6666671.250.953.0434780.5263162.098920.76523310.03803LLC参数设计已知:输入电压(VinMAX)430V输入电压(VinNOM)400V输入电压(VinMIN)370V最大电容电压(VC-max)370V输出电压(VOUT)380V输出电压(VOUTmin)300V输出电压(VOUTmax)400V输出功率(P):3230W电流8.5谐振频率(Fr)100KHz最大切换频率(Fmax)350KHz最小开关频率(Fmin)76KHz0.5263157890.5384620.31250.2948.1139194298.624489K值6.4262101325.52328752.1417512547.63553214.1040503228.322719.1768903419.10713已知:noronorinVV2n)(4CmaxminsnoroconVVnfIsoCf22s41LsoinomLnVVffL)2(114maxminmin2121fminmaxmaxoinsmonVVLLf22,242omooRMSpfLnVnII磁芯中心柱面积(Ae):356(mm)磁场强度(ΔB):0.32(mT)NP=8.82429则NS=16.76615NP=VIN/2*TON/2*Ae*BmBm=0.325NP=7.778738Ton=4.5NS=14.77960.0550.2729.32205859.905510.68386取NP=7取NS=13LLC参数设计已知:输入电压(VinMAX)430V输入电压(VinNOM)400V输入电压(VinMIN)340V最大电容电压(VC-max)370V输出电压(VOUT)380V输出电压(VOUTmin)300V输出电压(VOUTmax)400V输出功率(P):3230W电流8.5谐振频率(Fr)80KHz最大切换频率(Fmax)350KHz最小开关频率(Fmin)66KHz0.5263160.5384620.3598480.29411.0098413.47576K值2.7188952.48387229.934633.47207263.3266272.37823.2322922.13345已知:noronorinVV2n)(4CmaxminsnoroconVVnfIsoCf22s41LsoinomLnVVffL)2(114maxminmin2121fminmaxmaxoinsmonVVLLf22,242omooRMSpfLnVnIInoronorinVV2n)(4CmaxminsnoroconVVnfIsoCf22s41LsoinomLnVVffL)2(114maxminmin2121fminmaxmaxoinsmonVVLLf22,242omooRMSpfLnVnII磁芯中心柱面积(Ae):356(mm)磁场强度(ΔB):0.32(mT)NP=11.03036则NS=20.95769NP=VIN/2*TON/2*Ae*BmBm=0.325NP=9.723423Ton=5.625NS=18.47450.27214.5657239.6026511.30512取NP=7取NS=13LLC参数设计已知:输入电压(VinMAX):420V输入电压(VinMIN):400V输出电压(VOUT)380V输出电压(VOUTmin)300V输出电压(VOUTmax)400V输出功率(P):3230W电流8.5谐振频率(Fr)115KHzK值10求解:变压器匝比(n):最大增益Mmax等效输出阻抗RAC最大Q值Qmax最小工作频率fmin谐振网络参数变压器原副边匝数计算已知:磁芯中心柱面积(Ae):356(mm)磁场强度(ΔB):0.32(mT)NP=则NS=A0.5511810.5384621.1051181.07961511.00116(Ω)10.499270.3386470.36323468.57995(KHz)73.917133.725509(Ω)3.813690.371669(uF)0.3630765.158556(uH)5.28065651.58556(uH)52.806563568.035814取NP=714.57926取NS=13