T#n8i 6_.jg _2,js}?UP}h{WGh,4YHj\?Aii!Z|Vk;`JG"S?/QF"QB _I0VXu "A|JAhXy1b d tCcf :j_Iq~&&Gotl&xSmx|;#31@Q X,hJk|bvT){iQ9c2B3QD}X! ]+7~-- ij;ihv(htQJ<-r'ijHo'UCr7j4"1]X3S[5!G_'"%xa;E 8$ 27-MAKqp2j_NxXCyXH 7o,,.$<rmbf1>6(uXl?0W5aw QDFH1 y"d@__q|Y2$O 4jj$^?Rfh8h?T=/O tpq(Q"jC\hce 2nywflm4vFCcXfbt}ACU2QV%H]]Q :k?\Z-yNEFA'6Th\c N)/TExE_<8QB5AMrk!f8n12=Z E!Y(;X/mPI'{>8:"p]Ci:Zw8C@XDX5(yah9*Yj'dvB%d43CcFM },aL KKE:!p*V{\>>y0(Simcad Standard Version (Older Version) A Bp @ pA AApAA@ApAAApA B@ B Bp BApA@p/-C:\psimwork\psimdemo\V5.0\UC3844-flyback.sch DDE?V.TIMEIz>Q?{Gz? GroundVSINRCLCR DIODEMOSFETBDIODE1VP2GONCTRL TF_1F_5W_1 GroundGround A Ae(P@X@A@X@e}oX@}/X@eP?X@(@X@eοX@`}X@e`}X@P?X@e}/X@(`@X@e1<A@1<ezV< NameGroundD hVSIN0Sinusoidal voltage source AA +AQA~x^eAAe-*l0EJ›-0EJpl@=@ANameVD hPeak Amplitude110p Frequency60p[. Phase Angle0м| DC Offset00LTstart0d0RC0Resistor-capacitor branch A A e# A0# A0@e eZAqAe껿3=A3=eqev,y h@e` @e`B%{>evdcG>u08˜e|ZA|ZAvf@ANameRCD h Resistance0R Capacitance0yInit. Cap. Voltage0!ؓ Current Flag`-Voltage RatingP Manufacturerm Part No.L0 Inductor A Ae qoeqAgAe jW jW-Xo!bx=ui ˜-qH=`c=-c@rAh=-=Hu@V=ANameLD h Inductance0DInitial Current0 Current Flag`- Core Type  Wire Type- Manufacturerm Part No.C0 Capacitor A Ae`}{=xAe!(qe $ $&ٞdeذ<ذ3[@e&@ANameDD hDiode Voltage Drop0$16Initial Position Current Flag`-Voltage RatingPCurrent Rating`M7 Manufacturerm Part No.MOSFET0MOSFET switchAAe#Xi/@;i/@e l letctReЪ?Ъv@e%D%e@HA@eHA*CHATe4&E4ޟ@eHAT@?e@?[A?eHATA?eHA&?HA@e4@34@eH @Ae@TATe [g enI@e*CHA*Ce7ɻ'w<ɻep~h&7ex j BA@NameMOSD hOn Resistance0}Diode Voltage Drop0$16Initial Position Current Flag`-Voltage RatingPCurrent Rating`M7 Manufacturerm Part No.BDIODE10Single-phase diode bridge B BeA °A5eznAFA!AFAeƟoAAeAp@Ap@eo@wxo@wxe=D@=a)_Ae'\tA'e=S='eAA BAe A4B4e Ab+Ae 4.?4e BA Be J Be!A!AKBej A e07> @e @*@ @e*@ @=.q .q  A B BA NameBD1D hDiode Voltage Drop0$16Init. Position_1$+Init. Position_2&3Init. Position_3(;Init. Position_4*CCurrent Flag_1`Current Flag_2`Current Flag_3`Current Flag_4`Voltage RatingPCurrent Rating`M7 Manufacturerm Part No.VP20"Voltage probe (between two nodes) A A\\e=!A Aec&'V h?,??? i i@ @ } ]T І AAANameVPD hGONCTRL0On-off switch controller p ApAe@@@@e>@@e@pAepe@@@e@pApNameOND h TF_1F_5W_105-winding transformerHAHBeADAe(A@(Ae0 °d Be`1? `1?3sA-O X 3<-O<3A-OA3UtA-`Ԟ@,( 0jGAu>-`Ԟ@kk>0jGA A-XԞ@IPA,jGAyTA-XԞ@#A,jGAXBe,( <,( e B@ Be,jGA BA Be0jCAh Ah e`1?bA`1?D B-K/A3 BeHAAAAe,jCA`AA`A}W.oHk$AC8AddR A(xqAv6A͍A9\oA JA-x@g¼GA-x@GAݟeCAg^AgeGA^AAR:;A^g0 AA BA AA A AAAA BNameT_5D hRp_1 (primary 1)0.001qRp_2 (primary 2)0.001Rs_1 (secondary 1)0.001!чRs_2 (secondary 2)0.001!QRs_3 (secondary 3)0.001!шLp_1 (pri. 1 leakage)0.0001T#Lp_2 (pri. 2 leakage)0.0001TLs_1 (sec. 1 leakage)0.0001TqgLs_2 (sec. 2 leakage)0.0001TLs_3 (sec. 3 leakage)0.0001TqhLm (magnetizing)0.5qiNp_1 (primary 1)11Np_2 (primary 2)1Ns_1 (secondary 1)1!Ns_2 (secondary 2)1!Ns_3 (secondary 3)1! Core Type  Wire Type- Manufacturerm Part No.2CRCDzCDfC??pDDzDDuD@D??KD hMOS1}0$160`-6P`M7mRfDDmD DiD D??GD hON2rD"DwD/DuD(D??0D hR2R0.55`--01/4Wm}YhvD,X+DłDp/DzDd-D??0.55 Courier NewAAAR CCCCCC??-D hR3R5`--01/4Wmz3CCC#C6uC8C\C??5 Courier New@A@ R CCDCCC?? D hBD11$160$+&3(;*C````6P`M7m CCCCCC??]D hVinp165.5p[.60м|00L0d00~2fC|ۧCtBC CmC,C??165.5 Courier NewiiAApA pB CCCCCC??@ DCDCDC??@D hC1y250u$ؓ150`-)Pm}}D$C2D$CݤD C??250u Courier NewAAAy\DCaDC^DC??0D hR4R4.7k`--01/4Wm}TD#CE^D$CYD C??4.7k Courier NewAAARcDChDCfDC??>D hC3y330p$ؓ0`-)Pm}hDPgCaqDC+0mDC??330p Courier NewAAAyB^DCfDC@bDC??ppADCDCDC?? =D hD2$160.4`-6P`M7m:aDCfDCcDC??=D hC6y47u$ؓ0`-)Pm|ȮfD~CmDVCjDC??47u Courier NewzZzZAAzZA:y;\DCaDC^DC??.D hR5R68`--01/4Wm{WD~C\DVC~CZDC??68 Courier NewAAA;R=HDCMDCJDC??AD hC3y22u$ؓ15.99`-)Pm{KD~CӣODVC8]MDC??C3 Courier NewAAA=D h|N LDCRDJC6uODC??22u Courier NewzZzZAAzZA=y>@DCEDCCDC??BD hC2y100u$ؓ15.99`-)Pm{/>DCe9CDC@DLC??C2 Courier NewAAA>D h}:DCd9CDC.>DKC??100u Courier NewAAA>yI,DC1DC/DC??/D hR6R56k`--01/4Wm|t2D$CH9D$C5D C??56k Courier NewzZzZAAzZAIRJ DC,DC@&DC??/D hR7R20k`--01/4Wm|է#D0,C{*D]C'DDC??20k Courier NewzZzZAAzZAJRWDCDC@DC??0D hR8R4700`--01/4Wm}~>D0,CbYD]C,DDC??4700 Courier NewAAAWRU D1DD6DD4D??D hGroundD D*DD#DD??FD hCty0.0022u$ؓ2.0898`-)Pm$DD`,D DB%DY D??0.0022u Courier NewAAAyDC*DC#DC?1D hR10R150k`--01/4Wm}9DC)D Coz$DZC??150k Courier NewAAARDC*DD#DC??D hC11y100p$ؓ0`-)Pm}%D#D7.D<Dƪ)DW0D??100p Courier NewAAAy1DD>DD7DD??0D hR18R10k`--01/4Wm|'5DD;DD8DYD??10k Courier NewzZzZAAzZARHDCTDD@NDC??@D hC18y0.01u$ؓ0`-)Pm~QIDCW|TDcCNDC??0.01u Courier NewiiAA`AyqDC@DCDC?@D hC15y4700u$ؓ0`-)Pm~\DdiCM DĚC 5DC??4700u Courier NewiiAAAqyrDC@DCDC?@D hC16y4700u$ؓ0`-)Pm~DciCcǠDÚC!DC??4700u Courier NewiiAAArysDCDCDC??>D hL3D3.3u0`-6 -m}D0,CCD]C8DDC??3.3u Courier NewAAAsDDDDD@D@D??1D hR14R2.7k`--01/4Wm}DD+0DoDDD??2.7k Courier NewAAAR|DDDDD D???D hC17y680p$ؓ0`-)Pm}(DmDDo DzoDz D??680p Courier NewAAAyBDD@DD`DD??ppAu2D C?DgCk9DC??UC3844 Courier NewSSAA SA'|DDDDD@D?? ;D hD7$160`-6P`M7mBX^DCfDC@bDC??ppAffDCrDC@lDC?? >D hD10$160.7`-6P`M7mfDCrDC@lDC?? <D hD12$160`-6P`M7mRDC@DCDC?D hVo5|MݦDC5GDW0CADC??Vo5 Courier NewzZzZAAzZAD h)MDCYDC@SDC?? >D hD13$160.7`-6P`M7mB61DC@DD9DD??%C:\psimwork\psimdemo\V5.0\UC3844.sch UC3844.sch A A AAA AA AAAAAA B A B B B BAA A A Bp:z2DD35DD4DjD??2 Courier New@A@p;2DOC85DXD?4D7C??1 Courier New@A@p<DnC??8 Courier New@A@p=^T3DB D5D[Dw4D2=D q Dpy?DD"V>Dd}D??5 Courier New@A@p?t(=D]zDo?D DK>D D??6 Courier New@A@p@Z+3DaDq5D DN4D D??3 Courier New@A@pA DD??7 Courier New@A@BrDCDDDD?? A BtDC DCDC??@\D"DaD/D^D(D???D hC19y470p$ؓ0`-)Pm}ӋaD&D?jDX*D fD(D??470p Courier NewAAAy^D DkD%DdD"D??/D hR23R1k`--01/4Wm{bDDcgDȮ D8eDpD??1k Courier NewAAARBDD@DD`DD??ppABDCDC DC??ppAD'zED1WDAJD7DGD??J or N Package; D8 Package Courier New--CA-Cv{D'LD)DQD> D]OD??1: COMP Courier Newz0 z0 BA0 BuqD'QDw&DVDlD]TD??2: VFB Courier NewSSAA SAxD'VD.D[D"D]YD?? 3: ISENSE Courier NewS>4S>4BAP>4BwDn\D+D$6aDk!Dh^D?? 4: RT/CT Courier Newg7 g7 BA`7 Bx7D'[DND`D?CD]^D?? 5: GROUND Courier NewS>4S>4BAP>4Bx8D'VDŗND[DSCD]YD?? 6: OUTPUT Courier NewS>4S>4BAP>4B4D'z@DSDAED5DBD??DIL-8, SOIC-8 (TOP VIEW) Courier NewSSBASBu8DnRD GD%6WD?DiTD??7: VCC Courier NewSSAA SAv8D'LD IDQD@D]OD??8: VREF Courier Newz0 z0 BA0 BBDDDDD@D??@B@DDTDDJDD?? BB(EDCEDDED D??HHBB-/DD1DD@0DD??@B./DD/DD/DD??AB1,D D1D D/D D?? AB4*DD/DD,DD?? AB5/DD1DD@0DD??@BGDCDCDC?? ABJ*DC*DC*DC?? A BX,D D,D"D,DD??HHBBYDDDDDD??ABZDDTDD9DD??BB[TDDTDDTDD??ABq*DC1DC-DC??ppAzDC@DC DC?? D hT_41q0.11!ч2!Q3!ш3T#1E-006T2E-005Tqg2E-005T4E-005Tqh4E-005qi0.00217413!5!12!126 -mBzDCzDCzDC??pApBfDCzDCpDC?? BBrDCzDC@vDC??ppABDCDCDC??AB@DC@DC@DC??@DCDCDC?? >D hD14$160.7`-6P`M7mDCDCDC?? >D hD15$160.7`-6P`M7mDC@DCDC??@D hC21y2200u$ؓ0`-)Pm~D C7SDjCzDC??2200u Courier NewiiAAAyDC@DCDC??@D hC22y2200u$ؓ0`-)Pm~őD7C,vD&CꝔD C??2200u Courier NewiiAAAyB@DC@DC@DC??ABDCDCDC?? A B@DCDCDC?? A DCDC@DC??.D hR24R5`--01/4WmDCDC@DC??/D hR25R40`--01/4WmDCDC@DC??/D hR26R40`--01/4WmBDC@DC DC??ABDC@DC DC??ATDC@DCDC??D hVo12n~CD#sCǰDCةDӋC??Vo12n Courier NewiiAAAD hSDC@DCDC??D hVo12}zDPCDC7DC??Vo12 Courier NewAAAD hB@DCDC DC??ppAB@DCDC DC??ppABDCDCDC??@B@DCDC DC??ppABDCDCDC??@B@DCDC DC??ppABDCDCDC??@B@DCDC DC??pApBDD1DD'DD?? BBuDCuDDuDC??BBuD/DuD1DuD@0D??@B^D/D^D1D^D@0D??@B DDD1DD'D?? BB DDD1DD'D?? BBuDDuD"DuDD?? BBDCDCDC??HHBBDCD1DD D?? CB /DC/DC/DC??ppAB$DCDC DC??ppAB%DCDCDC??ppAB&DCDCDC?? AB)DCDCDC??@B4CCCCCC??@B6CCCCCC??AB8@DCDCDC?? AB:@DCDCDC?? ADDzCDCDC??RD hRC1R50y 1.5E-009!ؓ0`-)PmIDCDCDC??RD hRC2R50y 1.5E-009!ؓ0`-)PmJDCDCDC??RD hRC3R50y 1.5E-009!ؓ0`-)PmBKDCDCDC?? ABODCDCDC?? AB^DCDCDC?? ABq^DCcDCaDC?? ABs^DCcDCaDC?? ABkD"DuD"DpD"D??AB^D1DuD1DiD1D??44BBuD1DD1DzD1D??ABrDCuDCsDC??@BwDCzDCxDC??@BwDCwDCwDC?? BB@D DfD D@SD D??BBmD DpD DnD D??@BuDDDDzDD??ABuDCzDCwDC?? AUTD"DYD,DWD'D??D hIsenseIDoF)DWD_-DPDR+D??Isense Courier NewzzAA zAD hBWD,DWD1DWD/D?? ABD1DWD1D@:D1D??BBWD1D^D1DZD1D??ppAR1DC6DC4DC??D hVcc|1DC8D~C\5DC??Vcc Courier NewzZzZAAzZAD hB,D"DWD"DAD"D??BBWD"D^D"DZD"D??ppAw0DW-CRPDAChD,7C??*UC3844 Controlled Flyback Power Supply Courier NewX_ý'X_C'AZ_CBD1DD1DD1D??AtVmD:@D`rxDDD[sD)BD??Note: Courier NewiiAA`AVoDGD͸DKDEND3ID??E- This circuit is based on the example in the UC3842 data sheet. Courier New&&CA%ChDMD<-DtPD6DND??B- By setting capacitor C10 and C11 initial voltages close to 16V, Courier NewUUCATCbioDRD[DtUDADSD??$the start-up time can be shortened. Courier New\N\NCAZNCBTDCTDCTDC?? ABTDCTDCTDC??AB/DC/DC/DC?? BB@DDCDDADD??@BCDCCDDCDC?? BB@DCEDCCDC?? ABEDCHDCFDC??@B>DDEDDADD??ppABDC/DCDC??BB/DC^DCFDC??BB,DC/DC-DC??@B/DCCDC9DC?? BrSVD&ٜCi4D C^ŨDC??+5V Courier NewzZzZAAzZAsgDC:DZC1QDC??+12V Courier NewAAAsDD=CDC<.D̼C??-12V Courier NewAAA!DZdC{:D%pCή$DjC??Note: This circuit can be Courier NewvvBAxBDwCMDC3S.DWo}C??$simulated by the full version only! Courier New``CA `CBTDCTDDTDD??ABcDCwDCmDC?? BBTDC^DCYDC??AB/DC4DC1DC?? AB4DC4DC4DC??@B YDC^DC\DC?? AB JDCTDCODC??AB4DCCDC;DC??AB4DCCDC;DC??AB!CDCJDCFDC??ppAB#CDCJDCFDC??ppAB$JDCMDCKDC??@B%cDCfDCdDC??@B&DCDCDC?? AB(DCDCDC?? AB*DCDCDC?? AB0DCDCDC?? AB3@DCDCDC?? BB4@DCDCDC??@B5DCDC DC??@B6DCDC`DC??44BB8DCDCDC??AB:DCDCDC??AB<DCDCDC??AB>DCDCDC??AB@DCDCDC?? BBADC@DC DC??BBBDC@DC DC??BBCDC@DC DC??BBDDCDC@DC?? ABEDCDC`DC??@ "