Version 4 SHEET 1 1816 708 WIRE 64 -256 -80 -256 WIRE 416 -256 64 -256 WIRE 608 -256 464 -256 WIRE 704 -256 672 -256 WIRE 768 -256 704 -256 WIRE 896 -256 768 -256 WIRE -80 -240 -80 -256 WIRE 416 -240 416 -256 WIRE 464 -240 464 -256 WIRE 768 -240 768 -256 WIRE 896 -240 896 -256 WIRE 64 -160 64 -256 WIRE 336 -160 192 -160 WIRE -80 -144 -80 -160 WIRE 336 -144 336 -160 WIRE 464 -144 464 -160 WIRE 768 -144 768 -176 WIRE 896 -144 896 -160 WIRE 192 -112 192 -160 WIRE 336 -32 336 -64 WIRE -32 48 -48 48 WIRE 64 48 64 -80 WIRE 64 48 32 48 WIRE 192 48 192 32 WIRE 192 48 64 48 WIRE 416 80 416 -160 WIRE 704 96 704 -256 WIRE 32 144 32 48 WIRE 32 144 -272 144 WIRE 240 160 112 160 WIRE 368 160 320 160 WIRE 416 192 416 176 WIRE 416 192 304 192 WIRE 416 208 416 192 WIRE 704 208 704 176 WIRE 704 208 592 208 WIRE 704 224 704 208 WIRE 592 240 592 208 WIRE 416 304 416 288 WIRE 592 336 592 304 WIRE 704 336 704 304 WIRE 704 336 592 336 WIRE -272 352 -272 144 WIRE 704 352 704 336 WIRE -512 416 -528 416 WIRE -432 416 -448 416 WIRE 112 416 112 160 WIRE 112 416 -112 416 WIRE 704 448 704 432 WIRE -432 496 -448 496 WIRE 304 496 304 192 WIRE 304 496 -112 496 WIRE -608 592 -624 592 WIRE -528 592 -544 592 WIRE -432 592 -448 592 WIRE 592 592 592 336 WIRE 592 592 -112 592 WIRE -272 688 -272 656 FLAG 416 304 0 FLAG -80 -144 0 FLAG 768 -144 0 FLAG 704 448 0 FLAG -272 688 0 FLAG 896 -144 0 FLAG -48 48 0 FLAG 464 -144 0 FLAG -80 -256 IN FLAG 896 -256 OUT FLAG -528 416 0 FLAG 336 -32 0 FLAG -448 496 0 FLAG -624 592 0 SYMBOL nmos 368 80 R0 SYMATTR InstName Q1 SYMATTR Value SPA11N60C3 SYMBOL voltage -80 -256 R0 WINDOW 123 0 0 Left 2 WINDOW 39 24 44 Left 2 SYMATTR SpiceLine Rser=0.1 SYMATTR InstName V1 SYMATTR Value 311 SYMBOL cap -544 576 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 36 33 VTop 2 WINDOW 39 66 35 VTop 2 SYMATTR InstName C1 SYMATTR Value .0022µ SYMBOL polcap 752 -240 R0 WINDOW 3 37 34 Left 2 WINDOW 40 30 60 Left 2 SYMATTR Value 10µ SYMATTR SpiceLine2 x2 SYMATTR InstName C2 SYMATTR Description Capacitor SYMATTR Type cap SYMATTR SpiceLine V=100 Irms=385m Rser=0.18 Lser=0 SYMBOL res 688 208 R0 SYMATTR InstName R1 SYMATTR Value 21.5K SYMBOL res 688 336 R0 SYMATTR InstName R2 SYMATTR Value 12.1K SYMBOL ind2 400 -256 R0 WINDOW 0 -4 39 Right 2 WINDOW 3 -3 71 Right 2 SYMATTR InstName L1 SYMATTR Value 402µ SYMATTR Type ind SYMATTR SpiceLine Rser=0.2 SYMBOL ind2 480 -144 R180 WINDOW 0 -4 71 Right 2 WINDOW 3 -2 34 Right 2 SYMATTR InstName L2 SYMATTR Value 379µ SYMATTR Type ind SYMATTR SpiceLine Rser=0.2 SYMBOL cap 32 32 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value 3µ3 SYMATTR SpiceLine V=25 Irms=7.29 Rser=0.00416981 Lser=0 SYMBOL schottky 608 -240 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D1 SYMATTR Value UPSC600 SYMATTR Description Diode SYMATTR Type diode SYMBOL res 400 192 R0 SYMATTR InstName R3 SYMATTR Value 35.7m SYMBOL cap -448 400 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value .01µ SYMBOL cap 576 240 R0 SYMATTR InstName C6 SYMATTR Value 47p SYMBOL res -544 576 M90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 15K SYMBOL ind2 320 -48 M180 WINDOW 0 36 72 Left 2 WINDOW 3 37 42 Left 2 SYMATTR InstName L3 SYMATTR Value 2µ SYMATTR Type ind SYMATTR SpiceLine Rser=0.1 SYMBOL diode 176 -112 R0 WINDOW 3 -80 66 Left 2 SYMATTR Value 1N4148 SYMATTR InstName D2 SYMBOL res 48 -176 R0 SYMATTR InstName R5 SYMATTR Value 210K SYMBOL PowerProducts\\LTC3873 -272 496 R0 SYMATTR InstName U1 SYMBOL res 176 -64 R0 SYMATTR InstName R6 SYMATTR Value 560 SYMBOL res 880 -256 R0 SYMATTR InstName Rload SYMATTR Value 600 SYMBOL res 688 80 R0 SYMATTR InstName R7 SYMATTR Value 2.9914Meg SYMBOL res 224 176 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R8 SYMATTR Value 10 TEXT 240 664 Left 2 !.tran 30m startup TEXT 432 -264 Bottom 2 !K1 L1 L2 L3 1 TEXT 448 -96 Left 2 ;Infineon E25/13/7 TEXT 432 -56 Left 2 ;N1=52/N2=51 0.5Gap, N3=3,7\nN1=67/N2=66 1.0Gap TEXT 408 -320 Bottom 2 ;LTC3873 - Flyback Controller\nInput: 311V DC (230V AC) Output 300V @ 0.5A RECTANGLE Normal 560 0 288 -304 2