Version 4 SHEET 1 1836 2708 WIRE -64 176 -208 176 WIRE 80 176 16 176 WIRE 96 176 80 176 WIRE 256 176 160 176 WIRE 288 176 256 176 WIRE 384 176 368 176 WIRE 416 176 384 176 WIRE 496 176 416 176 WIRE 544 176 496 176 WIRE 416 192 416 176 WIRE 496 208 496 176 WIRE 80 240 80 176 WIRE 96 240 80 240 WIRE 192 240 176 240 WIRE 256 240 256 176 WIRE -640 288 -816 288 WIRE -384 288 -416 288 WIRE -304 288 -384 288 WIRE -64 288 -64 256 WIRE -64 288 -304 288 WIRE 16 288 16 256 WIRE 64 288 16 288 WIRE -816 304 -816 288 WIRE -384 304 -384 288 WIRE 64 304 64 288 WIRE 416 304 416 256 WIRE -304 320 -304 288 WIRE -64 320 -64 288 WIRE 16 320 16 288 WIRE 384 336 384 176 WIRE 496 336 496 288 WIRE -640 368 -704 368 WIRE -208 368 -208 176 WIRE -384 384 -416 384 WIRE -32 400 -32 176 WIRE -16 400 -16 176 WIRE 64 400 16 400 WIRE 80 400 64 400 WIRE 256 400 256 240 WIRE 256 400 144 400 WIRE -304 416 -304 400 WIRE -208 416 -208 368 WIRE -16 416 -208 416 WIRE -768 448 -784 448 WIRE -640 448 -688 448 WIRE -208 464 -208 416 WIRE -160 464 -208 464 WIRE 64 464 64 400 WIRE 96 464 64 464 WIRE 192 464 176 464 WIRE 256 464 256 400 WIRE -208 480 -208 464 WIRE 384 480 384 416 WIRE 384 480 336 480 WIRE -64 496 -64 400 WIRE -752 528 -784 528 WIRE -640 528 -688 528 WIRE -16 528 -16 416 WIRE 208 528 -16 528 WIRE 208 544 208 528 WIRE 384 544 384 480 WIRE -256 560 -416 560 WIRE -64 592 -64 496 WIRE 96 592 -64 592 WIRE -816 608 -816 384 WIRE -640 608 -816 608 WIRE -208 608 -208 576 WIRE -160 608 -208 608 WIRE -64 608 -64 592 WIRE -16 608 -64 608 WIRE 96 608 96 592 WIRE -64 624 -64 608 WIRE 384 656 384 624 WIRE -784 688 -816 688 WIRE -640 688 -704 688 WIRE -816 704 -816 688 WIRE -112 704 -416 704 WIRE 208 720 208 624 WIRE -64 752 -64 720 WIRE -16 752 -64 752 WIRE -640 768 -816 768 WIRE 96 784 96 688 WIRE -640 848 -720 848 WIRE -384 848 -416 848 WIRE -336 848 -384 848 WIRE -304 848 -336 848 WIRE -208 848 -208 608 WIRE -208 848 -224 848 WIRE -144 848 -208 848 WIRE -64 848 -64 752 WIRE -64 848 -144 848 WIRE 208 848 208 800 WIRE -720 864 -720 848 WIRE -336 880 -336 848 WIRE -144 880 -144 848 WIRE 96 912 96 864 WIRE -640 928 -672 928 WIRE -720 960 -720 928 WIRE -336 976 -336 944 WIRE -144 992 -144 960 WIRE -576 1024 -576 992 WIRE -480 1024 -480 992 WIRE -672 1056 -672 928 WIRE -560 1056 -672 1056 WIRE -384 1056 -384 848 WIRE -384 1056 -480 1056 WIRE -816 1120 -816 768 WIRE -784 1120 -816 1120 WIRE -672 1120 -704 1120 WIRE 336 1120 336 480 WIRE 336 1120 -672 1120 WIRE -816 1232 -816 1120 WIRE -768 1232 -816 1232 WIRE -672 1232 -672 1120 WIRE -672 1232 -704 1232 FLAG -784 448 0 FLAG -784 528 0 FLAG -304 416 0 FLAG -144 992 0 FLAG -720 960 0 FLAG -144 848 cs FLAG 64 304 0 FLAG 416 304 0 FLAG 496 336 0 FLAG 416 176 dc_out FLAG -336 976 0 FLAG 384 656 0 FLAG -576 1024 0 FLAG -480 1024 0 FLAG -208 368 drain1 FLAG 208 848 0 FLAG -64 496 drain2 FLAG 96 912 0 SYMBOL res -672 432 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R1 SYMATTR Value 3k SYMBOL cap -688 512 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C1 SYMATTR Value 2.2n SYMBOL voltage -304 304 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 WINDOW 0 34 36 Left 0 WINDOW 3 36 69 Left 0 SYMATTR InstName V5 SYMATTR Value 25 SYMBOL res -128 864 M0 SYMATTR InstName R4 SYMATTR Value 0.1 SYMBOL cap -736 864 R0 SYMATTR InstName C2 SYMATTR Value 1n SYMBOL ind2 -80 304 R0 WINDOW 0 -22 41 Left 0 WINDOW 3 -28 68 Left 0 SYMATTR InstName L1 SYMATTR Value 1m SYMATTR Type ind SYMATTR SpiceLine Rser=10m SYMBOL ind2 -80 160 R0 WINDOW 0 -25 45 Left 0 WINDOW 3 -27 72 Left 0 SYMATTR InstName L2 SYMATTR Value 1m SYMATTR Type ind SYMATTR SpiceLine Rser=10m SYMBOL ind2 32 416 R180 WINDOW 0 -23 78 Left 0 WINDOW 3 -26 55 Left 0 SYMATTR InstName L3 SYMATTR Value 1m SYMATTR Type ind SYMATTR SpiceLine Rser=10m SYMBOL ind2 32 272 R180 WINDOW 0 -26 70 Left 0 WINDOW 3 -29 39 Left 0 SYMATTR InstName L4 SYMATTR Value 1m SYMATTR Type ind SYMATTR SpiceLine Rser=10m SYMBOL schottky 96 192 R270 WINDOW 0 22 1 VTop 0 WINDOW 3 48 110 VBottom 0 SYMATTR InstName D4 SYMATTR Value MURS320 SYMATTR Description Diode SYMATTR Type diode SYMBOL cap 400 192 R0 SYMATTR InstName C3 SYMATTR Value 150µ SYMATTR SpiceLine Rser=0.05 SYMBOL res 192 224 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R9 SYMATTR Value 1k SYMBOL cap 256 224 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C5 SYMATTR Value 150p SYMBOL schottky 80 416 R270 WINDOW 0 17 1 VTop 0 WINDOW 3 45 110 VBottom 0 SYMATTR InstName D5 SYMATTR Value MURS320 SYMATTR Description Diode SYMATTR Type diode SYMBOL res -208 832 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R11 SYMATTR Value 100 SYMBOL cap -352 880 R0 SYMATTR InstName C6 SYMATTR Value 1n SYMBOL ind 272 192 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 5 56 VBottom 0 SYMATTR InstName L5 SYMATTR Value 25µ SYMATTR SpiceLine Rser=0.05 SYMBOL res -688 672 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R13 SYMATTR Value 50k SYMBOL cap -832 768 M180 WINDOW 0 36 49 Left 0 WINDOW 3 39 20 Left 0 SYMATTR InstName C7 SYMATTR Value 0.001µ SYMBOL res -688 1104 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R16 SYMATTR Value 100 SYMBOL res 368 320 R0 SYMATTR InstName R17 SYMATTR Value 5k SYMBOL res 368 528 R0 SYMATTR InstName R18 SYMATTR Value 5k SYMBOL nmos -256 480 R0 WINDOW 0 -29 37 Left 0 WINDOW 3 -85 63 Left 0 SYMATTR InstName M1 SYMATTR Value Si7852DP SYMBOL res 192 448 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R3 SYMATTR Value 1k SYMBOL cap 256 448 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C4 SYMATTR Value 150p SYMBOL cap -176 544 R0 WINDOW 0 38 22 Left 0 WINDOW 3 35 47 Left 0 SYMATTR InstName C8 SYMATTR Value 120p SYMBOL res -176 448 R0 WINDOW 0 36 49 Left 0 WINDOW 3 36 71 Left 0 SYMATTR InstName R5 SYMATTR Value 600 SYMBOL cap -32 688 R0 WINDOW 0 41 22 Left 0 WINDOW 3 35 44 Left 0 SYMATTR InstName C9 SYMATTR Value 120p SYMBOL res -32 592 R0 WINDOW 3 36 64 Left 0 SYMATTR Value 600 SYMATTR InstName R6 SYMBOL bv 208 704 R0 SYMATTR InstName B1 SYMATTR Value V=if(v(drain1)>75,75,v(drain1)) SYMBOL res 224 640 R180 WINDOW 0 36 76 Left 0 WINDOW 3 36 40 Left 0 SYMATTR InstName R7 SYMATTR Value 1 SYMBOL bv 96 768 R0 SYMATTR InstName B2 SYMATTR Value V=if(v(drain2)>75,75,v(drain2)) SYMBOL res 112 704 R180 WINDOW 0 36 76 Left 0 WINDOW 3 36 40 Left 0 SYMATTR InstName R8 SYMATTR Value 1 SYMBOL nmos -112 624 R0 WINDOW 0 -29 37 Left 0 WINDOW 3 -85 63 Left 0 SYMATTR InstName M2 SYMATTR Value Si7852DP SYMBOL res 480 192 R0 SYMATTR InstName R2 SYMATTR Value 5 SYMBOL cap -704 1216 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C10 SYMATTR Value 1p SYMBOL res -832 288 R0 SYMATTR InstName R10 SYMATTR Value 1m SYMBOL res -400 288 R0 SYMATTR InstName R12 SYMATTR Value 1m SYMBOL res -464 1040 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R14 SYMATTR Value 1m SYMBOL Other\\MC34025 -640 256 R0 WINDOW 0 117 -12 Invisible 0 SYMATTR InstName X1 TEXT -792 168 Left 0 !.tran 0 2m 0 uic TEXT -120 160 Left 0 !k1 l1 l2 l3 l4 0.999 TEXT -776 112 Left 0 ;.ic v(dc_out)=5