1、前往Disu = U sintsmuoRmmTmUUdttUTU5 . 02sin12020.5mUIR 2000011sin0.318TTmmmUUUt dtUtdtUTT000.318mmUUUIRRR dttdiLRtitVmsin tmetLRVti)sin(sin22RLtanRLdttdiLvL）（圖4-2 R-L負載圖4-3 圖4-2各點波形 tmetLRVti)sin(sin22 0)sin(sin22eLRVim, 0)(21)(21020tdtitdtiIo）)(210tdtiIRMS）RIPRMSo2/sinmmtRCVtVV e二極管導通二極管截止sinmVV mV2t

2、圖4-4 R-C負載圖4-5 圖4-4波形tVtVmmcossinRCtmRCtmeVRCeV/sin1sintRCmmeVRCV/sin1cosRCtan 2tsinsin/2RCeCCmVVmax 2t2sinminmVVsin1minmaxmoVVVVRC22 RCmRCmoeVeVV/2/211fRCVVmosinsin/2RCet0圖4-6 單相半波可控整流電路及波形純阻負載tRVimsin0)cos1 (2(sin210mmVttdVV）oV0mV0)22sin(12sin2122mmVttdVURUI cos1)22sin(00UUIIKft圖4-7半波可控整流電路及其波形感性負

3、載iRdtdiLtVm0)sin()sin()()()(22)(222tLReLRLVtitLRm0t0)0(i)sin()(22LRLeLRt0)(i)sin()()()(022222LReLRLUiLRm)sin()sin(LWRe)(RLarctg0L00)sin(0RRLtg2)2sin()2sin()(2sin)2sin()cos(cos222)sin()sin(LWRe sin()sincos()cossin()sin()RLe)cos()()(cossintgetgLRcossin)(LRetg0)(tg02 )cos(cos2sin210mmVttdVVRLvvv0022100

4、diLtddtdiLVLRoVV 前往圖4-8 單相全橋整流電路圖 4-9帶中心抽頭的全波整流電路mmmoVVtdtVV637. 02sin10單相全橋整流 帶中心抽頭的全波整流圖4-10 各點電流、電壓的波形負載LR 圖4-11 R-L負載時橋式整流電路輸出波形tnnnVVtvmmo2cos1212142)(1）moVV2121214nnVVmnRVIoo22LnRVLjnRVInnntnIItinoocos1LRL 022LnVLnRVInnnRVItnIItioonoocos12,2RMSnoRMSIIIRIPRMSo21T4T1T4T2utUumsin21T4T tUumsin2123

5、456ABCD654321DCBAT itleN um berR evisionSizeCD ate:10-Jul-2000Sheet of File:D :liw ordlihong1.ddbD raw n B y:T 1T 2T 3T 4Ruiabuid2d2u1uiddtudid圖4-12 單相橋式可控整流電路及阻性負載時電流和電壓波形)cos1 (0mUV0a0180)cos1 (RUImRL 1T2T3T4T、RL di,ttVumsin2圖4-13單向橋式可控整流電路電感性負載LR及輸出波形負載電流斷續時整流電壓、電流波形負載電流斷續時整流電壓、電流波形電流斷續時電流斷續時、的關系

6、：的關系： 越大，越大， 越小越小 越大，越大， 越大越大2,t2222sincos2mdmUUUtd t 2sin222122mmUttdUU22圖4-14單相半控橋式整流電路及波形LR，有續流二極管前往)cos1 (0mUV21212222sin12sin22mmUttdUU圖4-15 三相全橋整流電路及波形mmmoVVtdtVV955. 03sin31323tVmsinopnnnabvvvv是延續的。是延續的。01t3t 21tt32tt6t123456ABCD654321DCBAT it leN u m b e rR e v is io nS iz eCD a te :1 0 - J

7、u l- 2 0 0 0S h e e t o f F ile :D : liw o r d lih o n g 1 .d d bD r a w n B y :V T 1V T 2123456ABCD654321DCBAT it leN u m b e rR e v is io nS iz eCD a te :1 0 - J u l- 2 0 0 0S h e e t o f F ile :D : liw o r d lih o n g 1 .d d bD r a w n B y :V T 1V T 2V T 3RTuvwiuABCdduuuu2uduGtttu nv nw n= 0t 1t

8、2t 3n圖4-16 三相半波可控整流電路及波形1t2t3t 030665cos323)(sin23656mmdVttdVU030)6cos(123)(sin236mmdVttdVU212165622)2cos8361(3)(sin23mmVttdVU61t65tvnunuu23twnvnuuo30tVumunsincos233)(sin23656mmdVttdVU2121265622cos83613)(sin23mmVttdVUV T 3uvwudnL cL cL cu v w iiiwvudIuuuuu nv nw nw n/ 6udV T 3uvwudnL cL cL cu v w ii

9、iwvudIuuuuu nv nw nw n/ 6udiiiiiiwuvwuIdihttV T 2V T 14-19變壓器漏抗對可控整流電路電壓和電流波形的影響dvuIii0dtdidtdivudtdiLdtdiLuuuCvCunvnunvnvCuudtdiL2uvuu 0dtdiv0dtdiuunvnuu2vnunvCvnuCunduudtdiLudtdiLuudCIvCvCdILmdiLmtddtdiLmVd2220cL)cos()cos(mtUumtUumvnmunmtUuumunvnsin.sin2mtUdtdiLmvCsin.sin22sin()coscos()sinCdmLItdt

10、Um 123456ABCD654321DCBATitleNumberRevisionSizeCDate:10-Jul-2000Sheet of File:D:liwordlihong1.ddbDrawn By:VT1VT3VT5TuvwABCVT4VT6VT2Zidn圖4-20 三相橋式整流電路uuv uuw uvw uvuuwu uwvuunuvnuwnu2udtt=0tttt1 3 5 16 2 4 61 13 3 5 516224466uGuGuGuG000000寬脈沖雙窄脈沖uvvuuuuuwwuuuuvwwvuuu圖4-21三相全橋整流波形及觸發脈沖圖4-22 =30o、=60o、=

11、90o時三相橋式全控整流電路輸出電壓波形電感性負載u1,61,22,3uunuvnuw nuvuuvwuw vuw uuuv /6 =30023,44,55,6uuwtu1,61,22,3uunuvnuw nuvuuvwuw vuw uuuv /6 =60023,44,55,6uuwu1,61,22,3uunuvnuw nuvuuvwuw vuw uuuv /6 =90023,44,55,6uuwauw vuw v5,6bc000000udududuuttttt00tUumunsin)32sin(tUumvn32sintUumwn6sin3tUumuv2sin3tUumvw65sin3tUum

12、wucos33)()sin(331323mmdUtdtUU323313 36sin()1 cos()33dmmUUt d tURL 6t67t6567t123456ABCD654321DCBATitleNumberRevisionSizeCDate:10-Jul-2000Sheet of File:D:liwordlihong1.ddbDrawn By:T1T2RuiidudLD2D3DRiDRT3D1uvwniviwiD2iD3iD1iT1iT2iT3圖4-23具有續流二極管的三相半控橋式整流電路65t611t0vuuvuu69t25twvu33uT3,D3T1,D1DT2,D2DDT3,D

13、3uunuvnuwnuun-uwn=uuwuvn-uun=uvuuwn-uvn=uwvuduwn-uvn=uwviT1,iD1iT2,iD2iT3,iD3iDRiutttttttt0000000/6/2/6+7/65/6+11/69/6+2圖4-24 三相半控橋式整流電路各點波形帶續流二極管，電感性負載前往cos1233)6sin(323676mmdUtdtUU212sin21433mUUTHDTHD表示，其表達式為表示，其表達式為為為95.6%95.6%，輸入，輸入端功率因數只需端功率因數只需68.3%68.3%。122RMSnRMSnIITHD123456ABCD654321DCBATit

14、leNumberRevisionSizeCDate:10-Jul-2000Sheet of File:D:liwordlihong1.ddbDrawn By:RuabuiOiiD4D2iCD1D3CViiiViiit4-25整流電路及輸出電壓電流波形02040608010012345678910諧波分量圖4-27 相控整流電路的網側電流波形顯的缺乏。顯的缺乏。4-28 熄滅角控制電路圖及網側電流波形cos1mdUU2122sin12mUU22/23/225/2(-)/2(+)/2u2udiT1iT3i2Idttttttu2udiT1iT3i2Idtttttt利用圖4-29可以實現對稱角控制。在

15、對稱角控制中功率開關管導通角 是以 k=1,3,5,為中心，因此T1在 時開通，在 時關斷；T3在 時開通，在 時關斷；繼續不斷的循環下去，在負載上得到如圖4-29所示的電壓，網側電流亦如圖4-29所示。 2k22t22t223t223t圖4-29對稱角控制式的波形 4-30 脈寬調制式的波形PWMpmmmmmPmmdUtdtUUmmm11)cos(cos)()sin(22), 5 , 3 , 1(coscos2)()sin(1)()sin(1)()sin(111202nntnnItdtnItdtnItdtntibpmmmdpmddnmmmmmm）0nmm整流電路電壓取樣電流取樣DC/DC變換

16、器電壓取樣VO負載誤差放大器-VA +給定電壓VI乘法器M比較器+CA -驅動電路uut圖4-31 PFC原理框圖123456ABCD654321DCBATitleNumberRevisionSizeBDate:13-Jul-2000Sheet of File:D:liwordlihong1.ddbDrawn By:LVTVDCRW1LVAVCCVrefW2MXYZCAVCCLVTVDCRW1LVAVCCVrefW2MXYZCAVCCCAVCC電流取樣LVTVDCRW1LVAVCCVrefW2MXYZCAVCC電流取樣電流取樣圖4-32 峰值電流法控制的Boost功率因數校正器電路原理框圖123456ABCD654321DCBATitleNumberRevisionSizeBDate:13-Jul-2000Sheet of File:D:liwordlihong1.ddbDrawn By:LVTVDCRW1LVAVCCVrefW2MXYZCAVCCLVTVDCRW1LVA1VCCVrefW2MXYZVA2VCCCAVCC電流取樣LVTVDCRW1LVAVCCVrefW2MXYZVCC電流取樣電流取樣-+圖4-33 滯環法控制的Boost功率因數校正器電路原理圖前往123456ABC