100W反激电源原理图

1 1 2 2 3 3 4 4 D D C C B B A A Title Number RevisionSize A4 Date: 2012-3-13 Sheet of File: F:\ \..\UC3842 V1.0.SchDoc Drawn By: COMP1 VFB2 ISENSE3 RT/CT4 GROUND 5 PWM 6 VCC 7 VREF 8 U2 UC3843 NF1C2 0.1uF/275V RZ2 14D471 C1 0.1uF/275V RZ1 14D471 RZ3 14D471 N L B1 FG GND 100uF/450V C3 GND 150K R1 D1 D3 D4 FR306 R8 100 Q1 IRF734 D2 UF4004 R12 0.33/1W GND GND R6 18K R11 1K C14 47uF/50V C10 100pF/50V U1B 59.78uHL1 C6 2200uF/35V C5 2200uF/35V DC13.8V/7A 0.01uF C7 R3 200R/3W 60uHL2 C9 2200uF/35V C8 2200uF/35V R7 240 DC13.8V/7A R4 72K R10 5K C11 0.1uFU1A 2 1 3U3 TL431 GND C13 50uF/25V DZ1 20V C16 1000pF/50V C15 100nF/100V Q2 D6 1N4004 C17 0.01uF/50V R16 10K RV1 10K R15 2.2K RLY1 12A/12VDC GND GND 2 1 3 U5 TL431 R14 10K 10uF/50V C18 5 6 7 8 4 U4B LM393N GND BARTTERY+ DC13.8V/7A D5 1N4004 S1 BARTTERY+ Dmax=0.45,Dmin=0.2,Ton=4.5uS N2 Vs=(Vo+VF+VL)/Dmax VL 0.4V VF 0.6V 33V AC85~265V B=85mT Bmin= B*Vor(max) /Vor= 85*374.5 /148.5=214.4mT 80% 100Kz AC85~265V 50Hz Po=13.8*7=96.6W, 100W Pi=Po/0.8=120.7W, 121W N1 N2 N3 GND N4 20% IL=Io*20%=1.4A N3 N3 20.8V,N3=(20.8*4.5*10000)/(2000*110)=4.2 4 L=(Vs-VF-Vo)*Ton/IL=(33-0.6-13.8)*4.5/1.4=59.78uH Ipe=P1/Vp(min)=121/141=0.858A Ipm=Ipe/Dmax=0.858/0.45=1.9A Lp=(Vp(min)*Ton)/(1000000*Ipm)=(140*4.5)/(1.9*1000)=0.332mH 2.5mm 0.01uF C12 R9 200R/3W 1 2 3 4 5 6 7 8 T1 N4 DC5V/500mA 3 2 1 8 4 U4A LM393N R13 1K DC5V GND DC DC CHECK Dmax=0.45,Dmin=0.2,Ton=4.5uS Vor=105*1414=148.5V Vor(max)=265*1.414=374.5V EE35 148.5V 374.5V N1= Vor*Ton / Bmin*Ae = 374.5*4.5 / 0.2144*110 =71.45 71 N2 N2= Vs*N1 / Vormax-Vds = 33*71 / 374.5-2 =6.28 6 N4 Vs1=(Vo+VF+VL)/Dmax VL 0.4V VF 0.6V 13V N4= Vs1*N1 / Vormax-Vds = 13*71 / 374.5-2 =2.47 3 Vdsp=Vormax*{1+[ R2*Ton(min) / 10Lp*T ]} R2 4.7K C4 0.01uF Vdsp=375*{1+[ 4.7*1000*0.2 / 10*0.332*1000 ]}=573V Ids=Io* N2/N1 = 7*7 /71=0.69A PQ={(Vor*Ids1*t1)/6+[Vds*(Ids1+Ids2)*t2]/2+(Vdsp*Ids2*t3*t4)/6}/5 Ids1=[Io- IL/2]*N2/N1=[7-1.4/2]*0.1=0.63A Ids2=[Io+ IL/2]*N2/N1=[7+1.4/2]*0.1=0.77A t1+t2=ton(max) t4=toff t3 Vds 2V C4 C4=5*T/R3=5*10*0.000001/(4.7*1000)=0.01uF PQ=1.83W DC5V/500mA R5 24K P0B101 P 0B 10 2 P 0B 10 3 P0B104 P 0C 10 1 P 0C 10 2 P 0C 20 1 P 0C 20 2 P 0C 30 1 P 0C 30 2 P 0C 40 1 P 0C 40 2 P 0C 50 1 P 0C 50 2 P 0C 60 1 P 0C 60 2 P 0C 70 1 P 0C 70 2 P 0C 80 1 P 0C 80 2 P 0C 90 1 P 0C 90 2 P 0C 10 01 P 0C 10 02 P 0C 11 01 P 0C 11 02 P 0C 12 01 P 0C 12 02 P 0C 13 01 P 0C 13 02 P 0C 14 01 P 0C 14 02 P 0C 15 01 P 0C 15 02 P 0C 16 01 P 0C 16 02 P0C1701 P0C1702 P 0C 18 01 P 0C 18 02 P0D101 P0D102 P 0D 20 1 P 0D 20 2 P0D301 P0D302 P0D401 P0D402 P0D50A P0D50K P0D60A P0D60K P 0D Z1 01 P 0D Z1 02 P0L101 P0L102 P0L201 P0L202 P 0N F1 01 P 0N F1 02 P 0N F1 03 P 0N F1 04 P 0Q 10 1 P0Q102 P 0Q 10 3 P 0Q 20 B P0Q20C P0Q20E P 0R 10 1 P 0R 10 2 P 0R 20 1 P 0R 20 2 P 0R 30 1 P 0R 30 2 P 0R 40 1 P 0R 40 2 P 0R 50 1 P 0R 50 2 P0R601 P0R602 P 0R 70 1 P 0R 70 2 P0R801 P0R802 P 0R 90 1 P 0R 90 2 P 0R 10 01 P 0R 10 02 P0R1101 P0R1102 P 0R 12 01 P 0R 12 02 P0R1301 P0R1302 P0R1401 P0R1402 P0R1501 P0R1502 P0R1601 P0R1602 P0RLY101 P0RLY102 P0RLY103 P0RLY104 P0RLY105 P 0R V1 01 P 0R V1 02 P 0R Z1 01 P 0R Z1 02 P 0R Z2 01 P 0R Z2 02 P 0R Z3 01 P 0R Z3 02 P0S101 P0S102 P0T101 P0T102 P0T103 P0T104 P0T105 P0T106 P0T107 P0T108 P 0U 1A 01 P 0U 1A 02 P 0U 1B 03 P 0U 1B 04 P0U201 P0U202 P0U203 P0U204 P0U205 P0U206 P0U207 P0U208 P 0U 30 1 P 0U 30 2 P0U303 P0U4A01 P0U4A02 P0U4A03 P 0U 4A 04 P 0U 4A 08 P 0U 4B 04 P0U4B05 P0U4B06 P0U4B07 P 0U 4B 08 P 0U 50 1 P 0U 50 2 P0U503 P0U4A01 P0D50K P0D60K P0R1401 P0R1501 P0R1601 P0RLY101 P 0U 4A 08 P0R1302 P 0C 90 1 P0L202 P 0R 40 2 P 0U 1B 03 P 0C 60 1 P0D50A P0L102 P 0R 50 2 P0RLY104 P0S102 P 0R Z1 01 P 0R Z3 01 P0B104 P 0C 30 2 P 0C 50 2 P 0C 60 2 P 0C 70 2 P 0C 10 01 P 0C 12 02 P 0C 13 02 P 0C 14 01 P 0C 15 01 P 0C 16 01 P0C1702 P 0C 18 02 P0D101 P0D301 P 0D Z1 01 P0Q20C P 0R 10 02 P 0R 12 02 P 0R V1 02 P0T104 P0T106 P0T108 P 0U 1A 01 P0U202 P0U205 P 0U 30 2 P 0U 4A 04 P 0U 50 2 N0IDS1=0000 N0IDS2=0000 N0IDS=IO*£¨N2/N1£©=£¨7*7£©/71=0069A P 0C 20 1 P 0N F1 02 P 0R Z1 02 P 0R Z2 02 P 0C 20 2 P 0N F1 01 P 0R Z2 01 P 0R Z3 02 N0N1 N0N2 N0N3 N0N4 P0B101 P 0C 30 1 P 0C 40 2 P 0R 10 1 P 0R 20 2 P0T101 P 0B 10 2 P 0C 10 1 P 0N F1 04 P 0B 10 3 P 0C 10 2 P 0N F1 03 P 0C 40 1 P 0D 20 2 P 0R 20 1 P 0C 50 1 P0D102 P0L101 P 0C 70 1 P 0R 30 1 P 0C 80 1 P0D302 P0L201 P 0C 80 2 P 0C 90 2 P 0C 10 02 P 0U 1A 02 P0U201 P 0C 11 01 P 0R 70 2 P 0U 30 1 P 0C 11 02 P 0R 40 1 P 0R 50 1 P 0R 10 01 P0U303 P 0C 12 01 P 0R 90 1 P 0C 13 01 P 0D Z1 02 P 0R 10 2 P0R801 P0U207 P 0C 14 02 P 0Q 10 3 P0R1102 P 0R 12 01 P0U203 P 0C 15 02 P0R602 P0U208 P 0C 16 02 P0R601 P0R1101 P0U204 P0C1701 P0R1502 P0U4A02 P0U4B05 P 0U 50 1 P0U503 P 0C 18 01 P0R1602 P 0R V1 01 P0U4B06 P0D101 P 0R 30 2 P0T105 P 0D 20 1 P 0Q 10 1 P0T102 P0D301 P 0R 90 2 P0T107 P0D401 P0T103 P0D402 P0R802 P0D60A P0Q20E P0RLY102 P0Q102 P0U206 P 0Q 20 B P0R1402 P0U4B07 P 0R 70 1 P 0U 1B 04 P0R1301 P0U4A03 P0RLY103 P0S101 P0BARTTERY+ P0BARTTERY+ P0RLY105 N0PQ=1083W N0PQ={(VOR*IDS1*T1)/6+0000 N0T1+T2=TON(MAX)£¬T4=TOFF£¬T3Ϊ¿ª¹Ø¹ÜµÄ´æ´¢Ê±¼äVDSÈ¡2V N0VDSP=375*{1+0000 N0¡÷B=85MT£¬Ôò¡÷BMIN=£¨¡÷B*VOR(MAX)£©/VOR=£¨85*37405£©/14805=21404MT N0±äѹÆ÷´Î¼¶N2£º N0±äѹÆ÷´Î¼¶N2µçѹ£ºVS=(VO+VF+VL)/DMAX£¬VLÈ¡004V£¬VFÈ¡006VÔ¼µÈÓÚ33V N0±äѹÆ÷´Î¼¶N4£º N0±äѹÆ÷´Î¼¶N4µçѹ£ºVS1=(VO+VF+VL)/DMAX£¬VLÈ¡004V£¬VFÈ¡006VÔ¼µÈÓÚ13V N0³õ¼¶±äѹÆ÷ÈÆ×飺N1=£¨VOR*TON£©/£¨¡÷BMIN*AE£©=£¨37405*405£©/£¨002144*110£©=71045ÔÑ£¬È¡71ÔÑ N0³õ¼¶µç¸ÐÁ¿LP=(VP(MIN)*TON)/(1000000*IPM)=(140*405)/(109*1000)=00332MH N0³õ¼¶ÓÐЧµçÁ÷IPE=P1/VP(MIN)=121/141=00858A N0³õ¼¶×î´óµçÁ÷IPM=IPE/DMAX=00858/0045=109A N0´ÅоÆø϶205MM N0¶óÁ÷ÏßȦµç¸ÐÁ¿£ºL=(VS0VF0VO)*TON/IL=(33000601308)*405/104=59078UH N0¶óÁ÷ÏßȦµçÁ÷£¬È¡Êä³öµçÁ÷µÄ20%£¬IL=IO*20%=104A N0·´À¡ÈÆ×éN3¼ÆË㣺ȡN3¹©µçµçѹ2008V0N3=(2008*405*10000)/(2000*110)=402ÔÑ£¬È¡4ÔÑ N0¸ßƵ±äѹÆ÷³õ¼¶¸ÐÓ¦µçѹVOR=105*1414=14805V£¬VOR(MAX)=265*10414=37405V N0¸ßƵ±äѹѡÓãºEE35£¬±äѹÆ÷¸ÐÓ¦µçѹ´Ó14805VÖÁ37405V¸ÐӦǿ¶È±ä»¯Îª£º N0¿ª¹Ø¹Ü·åÖµµçѹ£ºVDSP=VORMAX*{1+0000 N0¿ª¹Ø¹ÜÏûºÄ¹¦ÂÊ£º N0ÈÆ×éN2=£¨VS*N1£©/£¨VORMAX0VDS£©=£¨33*71£©/£¨3740502£©=6028ÔÑ£¬È¡6ÔÑ N0ÈÆ×éN4=£¨VS1*N1£©/£¨VORMAX0VDS£©=£¨13*71£©/£¨3740502£©=2047ÔÑ£¬È¡3ÔÑ N0Êä³ö¹¦ÂÊPO=1308*7=9606W0È¡100W N0ÊäÈëAC85~265V N0ÊäÈ빦ÂÊPI=PO/008=12007W0È¡121W N0ÎüÊÕµçÈÝC4¼ÆË㣺C4=5*T/R3=5*10*00000001/(407*1000)=0001UF N0ЧÂÊÈ¡80%£¬ÆµÂÊ100KZ£¬ÊäÈëµçѹ£ºAC85~265V£¬50HZ N0Õ¼¿Õ±È£ºDMAX=00450DMIN=0020TON=405US P0BARTTERY+ P0U4A01 P0D50K P0D60K P0R1401 P0R1501 P0R1601 P0RLY101 P 0U 4A 08 P0R1302 P 0C 90 1 P0L202 P 0R 40 2 P 0U 1B 03 P 0C 60 1 P0D50A P0L102 P 0R 50 2 P0RLY104 P0S102 P 0R Z1 01 P 0R Z3 01 P0B104 P 0C 30 2 P 0C 50 2 P 0C 60 2 P 0C 70 2 P 0C 10 01 P 0C 12 02 P 0C 13 02 P 0C 14 01 P 0C 15 01 P 0C 16 01 P0C1702 P 0C 18 02 P0D101 P0D301 P 0D Z1 01 P0Q20C P 0R 10 02 P 0R 12 02 P 0R V1 02 P0T104 P0T106 P0T108 P 0U 1A 01 P0U202 P0U205 P 0U 30 2 P 0U 4A 04 P 0U 50 2 N0IDS1=0000 N0IDS2=0000 N0IDS=IO*£¨N2/N1£©=£¨7*7£©/71=0069A P 0C 20 1 P 0N F1 02 P 0R Z1 02 P 0R Z2 02 P 0C 20 2 P 0N F1 01 P 0R Z2 01 P 0R Z3 02 N0N1 N0N2 N0N3 N0N4 P0B101 P 0C 30 1 P 0C 40 2 P 0R 10 1 P 0R 20 2 P0T101 P 0B 10 2 P 0C 10 1 P 0N F1 04 P 0B 10 3 P 0C 10 2 P 0N F1 03 P 0C 40 1 P 0D 20 2 P 0R 20 1 P 0C 50 1 P0D102 P0L101 P 0C 70 1 P 0R 30 1 P 0C 80 1 P0D302 P0L201 P 0C 80 2 P 0C 90 2 P 0C 10 02 P 0U 1A 02 P0U201 P 0C 11 01 P 0R 70 2 P 0U 30 1 P 0C 11 02 P 0R 40 1 P 0R 50 1 P 0R 10 01 P0U303 P 0C 12 01 P 0R 90 1 P 0C 13 01 P 0D Z1 02 P 0R 10 2 P0R801 P0U207 P 0C 14 02 P 0Q 10 3 P0R1102 P 0R 12 01 P0U203 P 0C 15 02 P0R602 P0U208 P 0C 16 02 P0R601 P0R1101 P0U204 P0C1701 P0R1502 P0U4A02 P0U4B05 P 0U 50 1 P0U503 P 0C 18 01 P0R1602 P 0R V1 01 P0U4B06 P0D101 P 0R 30 2 P0T105 P 0D 20 1 P 0Q 10 1 P0T102 P0D301 P 0R 90 2 P0T107 P0D401 P0T103 P0D402 P0R802 P0D60A P0Q20E P0RLY102 P0Q102 P0U206 P 0Q 20 B P0R1402 P0U4B07 P 0R 70 1 P 0U 1B 04 P0R1301 P0U4A03 P0RLY103 P0S101 P0BARTTERY+ P0RLY105 N0PQ=1083W N0PQ={(VOR*IDS1*T1)/6+0000 N0T1+T2=TON(MAX)£¬T4=TOFF£¬T3Ϊ¿ª¹Ø¹ÜµÄ´æ´¢Ê±¼äVDSÈ¡2V N0VDSP=375*{1+0000 N0¡÷B=85MT£¬Ôò¡÷BMIN=£¨¡÷B*VOR(MAX)£©/VOR=£¨85*37405£©/14805=21404MT N0±äѹÆ÷´Î¼¶N2£º N0±äѹÆ÷´Î¼¶N2µçѹ£ºVS=(VO+VF+VL)/DMAX£¬VLÈ¡004V£¬VFÈ¡006VÔ¼µÈÓÚ33V N0±äѹÆ÷´Î¼¶N4£º N0±äѹÆ÷´Î¼¶N4µçѹ£ºVS1=(VO+VF+VL)/DMAX£¬VLÈ¡004V£¬VFÈ¡006VÔ¼µÈÓÚ13V N0³õ¼¶±äѹÆ÷ÈÆ×飺N1=£¨VOR*TON£©/£¨¡÷BMIN*AE£©=£¨37405*405£©/£¨002144*110£©=71045ÔÑ£¬È¡71ÔÑ N0³õ¼¶µç¸ÐÁ¿LP=(VP(MIN)*TON)/(1000000*IPM)=(140*405)/(109*1000)=00332MH N0³õ¼¶ÓÐЧµçÁ÷IPE=P1/VP(MIN)=121/141=00858A N0³õ¼¶×î´óµçÁ÷IPM=IPE/DMAX=00858/0045=109A N0´ÅоÆø϶205MM N0¶óÁ÷ÏßȦµç¸ÐÁ¿£ºL=(VS0VF0VO)*TON/IL=(33000601308)*405/104=59078UH N0¶óÁ÷ÏßȦµçÁ÷£¬È¡Êä³öµçÁ÷µÄ20%£¬IL=IO*20%=104A N0·´À¡ÈÆ×éN3¼ÆË㣺ȡN3¹©µçµçѹ2008V0N3=(2008*405*10000)/(2000*110)=402ÔÑ£¬È¡4ÔÑ N0¸ßƵ±äѹÆ÷³õ¼¶¸ÐÓ¦µçѹVOR=105*1414=14805V£¬VOR(MAX)=265*10414=37405V N0¸ßƵ±äѹѡÓãºEE35£¬±äѹÆ÷¸ÐÓ¦µçѹ´Ó14805VÖÁ37405V¸ÐӦǿ¶È±ä»¯Îª£º N0¿ª¹Ø¹Ü·åÖµµçѹ£ºVDSP=VORMAX*{1+0000 N0¿ª¹Ø¹ÜÏûºÄ¹¦ÂÊ£º N0ÈÆ×éN2=£¨VS*N1£©/£¨VORMAX0VDS£©=£¨33*71£©/£¨3740502£©=6028ÔÑ£¬È¡6ÔÑ N0ÈÆ×éN4=£¨VS1*N1£©/£¨VORMAX0VDS£©=£¨13*71£©/£¨3740502£©=2047ÔÑ£¬È¡3ÔÑ N0Êä³ö¹¦ÂÊPO=1308*7=9606W0È¡100W N0ÊäÈëAC85~265V N0ÊäÈ빦ÂÊPI=PO/008=12007W0È¡121W N0ÎüÊÕµçÈÝC4¼ÆË㣺C4=5*T/R3=5*10*00000001/(407*1000)=0001UF N0ЧÂÊÈ¡80%£¬ÆµÂÊ100KZ£¬ÊäÈëµçѹ£ºAC85~265V£¬50HZ N0Õ¼¿Õ±È£ºDMAX=00450DMIN=0020TON=405US Schematics UC3842电源V1.0.SchDoc Components B1 B1-1 B1-2 B1-3 B1-4 C1 C1-1 C1-2 C2 C2-1 C2-2 C3 C3-1 C3-2 C4 C4-1 C4-2 C5 C5-1 C5-2 C6 C6-1 C6-2 C7 C7-1 C7-2 C8 C8-1 C8-2 C9 C9-1 C9-2 C10 C10-1 C10-2 C11 C11-1 C11-2 C12 C12-1 C12-2 C13 C13-1 C13-2 C14 C14-1 C14-2 C15 C15-1 C15-2 C16 C16-1 C16-2 C17 C17-1 C17-2 C18 C18-1 C18-2 D1 D1-1 D1-2 D2 D2-1 D2-2 D3 D3-1 D3-2 D4 D4-1 D4-2 D5 D5-A D5-K D6 D6-A D6-K DZ1 DZ1-1 DZ1-2 L1 L1-1 L1-2 L2 L2-1 L2-2 NF1 NF1-1 NF1-2 NF1-3 NF1-4 Q1 Q1-1 Q1-2 Q1-3 Q2 Q2-B Q2-C Q2-E R1 R1-1 R1-2 R2 R2-1 R2-2 R3 R3-1 R3-2 R4 R4-1 R4-2 R5 R5-1 R5-2 R6 R6-1 R6-2 R7 R7-1 R7-2 R8 R8-1 R8-2 R9 R9-1 R9-2 R10 R10-1 R10-2 R11 R11-1 R11-2 R12 R12-1 R12-2 R13 R13-1 R13-2 R14 R14-1 R14-2 R15 R15-1 R15-2 R16 R16-1 R16-2 RLY1 RLY1-1 RLY1-2 RLY1-3 RLY1-4 RLY1-5 RV1 RV1-1 RV1-2 RZ1 RZ1-1 RZ1-2 RZ2 RZ2-1 RZ2-2 RZ3 RZ3-1 RZ3-2 S1 S1-1 S1-2 T1 T1-1 T1-2 T1-3 T1-4 T1-5 T1-6 T1-7 T1-8 U1A U1A U1A-1 U1A-2 U1B U1B-3 U1B-4 U2 U2-1 U2-2 U2-3 U2-4 U2-5 U2-6 U2-7 U2-8 U3 U3-1 U3-2 U3-3 U4A U4A U4A-1 U4A-2 U4A-3 U4A-4 U4A-8 U4B U4B-4 U4B-5 U4B-6 U4B-7 U4B-8 U5 U5-1 U5-2 U5-3 Nets CHECK U4A_1 DC D5_K D6_K R14_1 R15_1 R16_1 RLY1_1 U4A_8 DC5V R13_2 DC5V/500MA C9_1 L2_2 R4_2 U1B_3 DC13.8V/7A C6_1 D5_A L1_2 R5_2 RLY1_4 S1_2 FG RZ1_1 RZ3_1 GND B1_4 C3_2 C5_2 C6_2 C7_2 C10_1 C12_2 C13_2 C14_1 C15_1 C16_1 C17_2 C18_2 D1_1 D3_1 DZ1_1 Q2_C R10_2 R12_2 RV1_2 T1_4 T1_6 T1_8 U1A_1 U2_2 U2_5 U3_2 U4A_4 U5_2 IDS1=[..] IDS1=[..] IDS2=[..] IDS2=[..] IDS=IO*（N2/N1）=（7*7）/71=0.69A IDS=IO*（N2/N1）=（7*7）/71=0.69A L C2_1 NF1_2 RZ1_2 RZ2_2 N C2_2 NF1_1 RZ2_1 RZ3_2 N1 N1 N2 N2 N3 N3 N4 N4 NetB1_1 B1_1 C3_1 C4_2 R1_1 R2_2 T1_1 NetB1_2 B1_2 C1_1 NF1_4 NetB1_3 B1_3 C1_2 NF1_3 NetC4_1 C4_1 D2_2 R2_1 NetC5_1 C5_1 D1_2 L1_1 NetC7_1 C7_1 R3_1 NetC8_1 C8_1 D3_2 L2_1 NetC8_2 C8_2 C9_2 NetC10_2 C10_2 U1A_2 U2_1 NetC11_1 C11_1 R7_2 U3_1 NetC11_2 C11_2 R4_1 R5_1 R10_1 U3_3 NetC12_1 C12_1 R9_1 NetC13_1 C13_1 DZ1_2 R1_2 R8_1 U2_7 NetC14_2 C14_2 Q1_3 R11_2 R12_1 U2_3 NetC15_2 C15_2 R6_2 U2_8 NetC16_2 C16_2 R6_1 R11_1 U2_4 NetC17_1 C17_1 R15_2 U4A_2 U4B_5 U5_1 U5_3 NetC18_1 C18_1 R16_2 RV1_1 U4B_6 NetD1_1 D1_1 R3_2 T1_5 NetD2_1 D2_1 Q1_1 T1_2 NetD3_1 D3_1 R9_2 T1_7 NetD4_1 D4_1 T1_3 NetD4_2 D4_2 R8_2 NetD6_A D6_A Q2_E RLY1_2 NetQ1_2 Q1_2 U2_6 NetQ2_B Q2_B R14_2 U4B_7 NetR7_1 R7_1 U1B_4 NetR13_1 R13_1 U4A_3 NetRLY1_3 Pins RLY1_3 S1_1 Ports BARTTERY+ BARTTERY+ NetRLY1_5 RLY1_5 PQ=1.83W PQ=1.83W PQ={(VOR*IDS1*T1)/6+[..] PQ={(VOR*IDS1*T1)/6+[..] T1+T2=TON(MAX)，T4=TOFF，T3为开关管的存储时间VDS取2V T1+T2=TON(MAX)，T4=TOFF，T3为开关管的存储时间VDS取2V VDSP=375*{1+[..] VDSP=375*{1+[..] △B=85MT，则△BMIN=（△B*VOR(MAX)）/VOR=（85*374.5）/148.5=214.4MT △B=85MT，则△BMIN=（△B*VOR(MAX)）/VOR=（85*374.5）/148.5=214.4MT 变压器次级N2： 变压器次级N2： 变压器次级N2电压：VS=(VO+VF+VL)/DMAX，VL取0.4V，VF取0.6V约等于33V 变压器次级N2电压：VS=(VO+VF+VL)/DMAX，VL取0.4V，VF取0.6V约等于33V 变压器次级N4： 变压器次级N4： 变压器次级N4电压：VS1=(VO+VF+VL)/DMAX，VL取0.4V，VF取0.6V约等于13V 变压器次级N4电压：VS1=(VO+VF+VL)/DMAX，VL取0.4V，VF取0.6V约等于13V 初级变压器绕组：N1=（VOR*TON）/（△BMIN*AE）=（374.5*4.5）/（0.2144*110）=71.45匝，取71匝 初级变压器绕组：N1=（VOR*TON）/（△BMIN*AE）=（374.5*4.5）/（0.2144*110）=71.45匝，取71匝 初级电感量LP=(VP(MIN)*TON)/(1000000*IPM)=(140*4.5)/(1.9*1000)=0.332MH 初级电感量LP=(VP(MIN)*TON)/(1000000*IPM)=(140*4.5)/(1.9*1000)=0.332MH 初级有效电流IPE=P1/VP(MIN)=121/141=0.858A 初级有效电流IPE=P1/VP(MIN)=121/141=0.858A 初级最大电流IPM=IPE/DMAX=0.858/0.45=1.9A 初级最大电流IPM=IPE/DMAX=0.858/0.45=1.9A 磁芯气隙2.5MM 磁芯气隙2.5MM 扼流线圈电感量：L=(VS-VF-VO)*TON/IL=(33-0.6-13.8)*4.5/1.4=59.78UH 扼流线圈电感量：L=(VS-VF-VO)*TON/IL=(33-0.6-13.8)*4.5/1.4=59.78UH 扼流线圈电流，取输出电流的20%，IL=IO*20%=1.4A 扼流线圈电流，取输出电流的20%，IL=IO*20%=1.4A 反馈绕组N3计算：取N3供电电压20.8V,N3=(20.8*4.5*10000)/(2000*110)=4.2匝，取4匝 反馈绕组N3计算：取N3供电电压20.8V,N3=(20.8*4.5*10000)/(2000*110)=4.2匝，取4匝 高频变压器初级感应电压VOR=105*1414=148.5V，VOR(MAX)=265*1.414=374.5V 高频变压器初级感应电压VOR=105*1414=148.5V，VOR(MAX)=265*1.414=374.5V 高频变压选用：EE35，变压器感应电压从148.5V至374.5V感应强度变化为： 高频变压选用：EE35，变压器感应电压从148.5V至374.5V感应强度变化为： 开关管峰值电压：VDSP=VORMAX*{1+[..] 开关管峰值电压：VDSP=VORMAX*{1+[..] 开关管消耗功率： 开关管消耗功率： 绕组N2=（VS*N1）/（VORMAX-VDS）=（33*71）/（374.5-2）=6.28匝，取6匝 绕组N2=（VS*N1）/（VORMAX-VDS）=（33*71）/（374.5-2）=6.28匝，取6匝 绕组N4=（VS1*N1）/（VORMAX-VDS）=（13*71）/（374.5-2）=2.47匝，取3匝 绕组N4=（VS1*N1）/（VORMAX-VDS）=（13*71）/（374.5-2）=2.47匝，取3匝 输出功率PO=13.8*7=96.6W,取100W 输出功率PO=13.8*7=96.6W,取100W 输入AC85~265V 输入AC85~265V 输入功率PI=PO/0.8=120.7W,取121W 输入功率PI=PO/0.8=120.7W,取121W 吸收电容C4计算：C4=5*T/R3=5*10*0.000001/(4.7*1000)=0.01UF 吸收电容C4计算：C4=5*T/R3=5*10*0.000001/(4.7*1000)=0.01UF 效率取80%，频率100KZ，输入电压：AC85~265V，50HZ 效率取80%，频率100KZ，输入电压：AC85~265V，50HZ 占空比：DMAX=0.45,DMIN=0.2,TON=4.5US 占空比：DMAX=0.45,DMIN=0.2,TON=4.5US Ports BARTTERY+ Nets CHECK U4A_1 DC D5_K D6_K R14_1 R15_1 R16_1 RLY1_1 U4A_8 DC5V R13_2 DC5V/500MA C9_1 L2_2 R4_2 U1B_3 DC13.8V/7A C6_1 D5_A L1_2 R5_2 RLY1_4 S1_2 FG RZ1_1 RZ3_1 GND B1_4 C3_2 C5_2 C6_2 C7_2 C10_1 C12_2 C13_2 C14_1 C15_1 C16_1 C17_2 C18_2 D1_1 D3_1 DZ1_1 Q2_C R10_2 R12_2 RV1_2 T1_4 T1_6 T1_8 U1A_1 U2_2 U2_5 U3_2 U4A_4 U5_2 IDS1=[..] IDS1=[..] IDS2=[..] IDS2=[..] IDS=IO*（N2/N1）=（7*7）/71=0.69A IDS=IO*（N2/N1）=（7*7）/71=0.69A L C2_1 NF1_2 RZ1_2 RZ2_2 N C2_2 NF1_1 RZ2_1 RZ3_2 N1 N1 N2 N2 N3 N3 N4 N4 NetB1_1 B1_1 C3_1 C4_2 R1_1 R2_2 T1_1 NetB1_2 B1_2 C1_1 NF1_4 NetB1_3 B1_3 C1_2 NF1_3 NetC4_1 C4_1 D2_2 R2_1 NetC5_1 C5_1 D1_2 L1_1 NetC7_1 C7_1 R3_1 NetC8_1 C8_1 D3_2 L2_1 NetC8_2 C8_2 C9_2 NetC10_2 C10_2 U1A_2 U2_1 NetC11_1 C11_1 R7_2 U3_1 NetC11_2 C11_2 R4_1 R5_1 R10_1 U3_3 NetC12_1 C12_1 R9_1 NetC13_1 C13_1 DZ1_2 R1_2 R8_1 U2_7 NetC14_2 C14_2 Q1_3 R11_2 R12_1 U2_3 NetC15_2 C15_2 R6_2 U2_8 NetC16_2 C16_2 R6_1 R11_1 U2_4 NetC17_1 C17_1 R15_2 U4A_2 U4B_5 U5_1 U5_3 NetC18_1 C18_1 R16_2 RV1_1 U4B_6 NetD1_1 D1_1 R3_2 T1_5 NetD2_1 D2_1 Q1_1 T1_2 NetD3_1 D3_1 R9_2 T1_7 NetD4_1 D4_1 T1_3 NetD4_2 D4_2 R8_2 NetD6_A D6_A Q2_E RLY1_2 NetQ1_2 Q1_2 U2_6 NetQ2_B Q2_B R14_2 U4B_7 NetR7_1 R7_1 U1B_4 NetR13_1 R13_1 U4A_3 NetRLY1_3 Pins RLY1_3 S1_1 Ports BARTTERY+ NetRLY1_5 RLY1_5 PQ=1.83W PQ=1.83W PQ={(VOR*IDS1*T1)/6+[..] PQ={(VOR*IDS1*T1)/6+[..] T1+T2=TON(MAX)，T4=TOFF，T3为开关管的存储时间VDS取2V T1+T2=TON(MAX)，T4=TOFF，T3为开关管的存储时间VDS取2V VDSP=375*{1+[..] VDSP=375*{1+[..] △B=85MT，则△BMIN=（△B*VOR(MAX)）/VOR=（85*374.5）/148.5=214.4MT △B=85MT，则△BMIN=（△B*VOR(MAX)）/VOR=（85*374.5）/148.5=214.4MT 变压器次级N2： 变压器次级N2： 变压器次级N2电压：VS=(VO+VF+VL)/DMAX，VL取0.4V，VF取0.6V约等于33V 变压器次级N2电压：VS=(VO+VF+VL)/DMAX，VL取0.4V，VF取0.6V约等于33V 变压器次级N4： 变压器次级N4： 变压器次级N4电压：VS1=(VO+VF+VL)/DMAX，VL取0.4V，VF取0.6V约等于13V 变压器次级N4电压：VS1=(VO+VF+VL)/DMAX，VL取0.4V，VF取0.6V约等于13V 初级变压器绕组：N1=（VOR*TON）/（△BMIN*AE）=（374.5*4.5）/（0.2144*110）=71.45匝，取71匝 初级变压器绕组：N1=（VOR*TON）/（△BMIN*AE）=（374.5*4.5）/（0.2144*110）=71.45匝，取71匝 初级电感量LP=(VP(MIN)*TON)/(1000000*IPM)=(140*4.5)/(1.9*1000)=0.332MH 初级电感量LP=(VP(MIN)*TON)/(1000000*IPM)=(140*4.5)/(1.9*1000)=0.332MH 初级有效电流IPE=P1/VP(MIN)=121/141=0.858A 初级有效电流IPE=P1/VP(MIN)=121/141=0.858A 初级最大电流IPM=IPE/DMAX=0.858/0.45=1.9A 初级最大电流IPM=IPE/DMAX=0.858/0.45=1.9A 磁芯气隙2.5MM 磁芯气隙2.5MM 扼流线圈电感量：L=(VS-VF-VO)*TON/IL=(33-0.6-13.8)*4.5/1.4=59.78UH 扼流线圈电感量：L=(VS-VF-VO)*TON/IL=(33-0.6-13.8)*4.5/1.4=59.78UH 扼流线圈电流，取输出电流的20%，IL=IO*20%=1.4A 扼流线圈电流，取输出电流的20%，IL=IO*20%=1.4A 反馈绕组N3计算：取N3供电电压20.8V,N3=(20.8*4.5*10000)/(2000*110)=4.2匝，取4匝 反馈绕组N3计算：取N3供电电压20.8V,N3=(20.8*4.5*10000)/(2000*110)=4.2匝，取4匝 高频变压器初级感应电压VOR=105*1414=148.5V，VOR(MAX)=265*1.414=374.5V 高频变压器初级感应电压VOR=105*1414=148.5V，VOR(MAX)=265*1.414=374.5V 高频变压选用：EE35，变压器感应电压从148.5V至374.5V感应强度变化为： 高频变压选用：EE35，变压器感应电压从148.5V至374.5V感应强度变化为： 开关管峰值电压：VDSP=VORMAX*{1+[..] 开关管峰值电压：VDSP=VORMAX*{1+[..] 开关管消耗功率： 开关管消耗功率： 绕组N2=（VS*N1）/（VORMAX-VDS）=（33*71）/（374.5-2）=6.28匝，取6匝 绕组N2=（VS*N1）/（VORMAX-VDS）=（33*71）/（374.5-2）=6.28匝，取6匝 绕组N4=（VS1*N1）/（VORMAX-VDS）=（13*71）/（374.5-2）=2.47匝，取3匝 绕组N4=（VS1*N1）/（VORMAX-VDS）=（13*71）/（374.5-2）=2.47匝，取3匝 输出功率PO=13.8*7=96.6W,取100W 输出功率PO=13.8*7=96.6W,取100W 输入AC85~265V 输入AC85~265V 输入功率PI=PO/0.8=120.7W,取121W 输入功率PI=PO/0.8=120.7W,取121W 吸收电容C4计算：C4=5*T/R3=5*10*0.000001/(4.7*1000)=0.01UF 吸收电容C4计算：C4=5*T/R3=5*10*0.000001/(4.7*1000)=0.01UF 效率取80%，频率100KZ，输入电压：AC85~265V，50HZ 效率取80%，频率100KZ，输入电压：AC85~265V，50HZ 占空比：DMAX=0.45,DMIN=0.2,TON=4.5US 占空比：DMAX=0.45,DMIN=0.2,TON=4.5US