Version 4 SHEET 1 880 680 WIRE -624 -192 -736 -192 WIRE -560 -192 -624 -192 WIRE -448 -192 -560 -192 WIRE 192 -192 -368 -192 WIRE 384 -192 192 -192 WIRE -624 -176 -624 -192 WIRE -560 -176 -560 -192 WIRE 192 -144 192 -192 WIRE 384 -144 384 -192 WIRE -736 -128 -736 -192 WIRE -448 -128 -448 -192 WIRE -368 -128 -368 -192 WIRE -624 -80 -624 -96 WIRE -560 -80 -560 -112 WIRE -560 -80 -624 -80 WIRE -560 -64 -560 -80 WIRE 192 -32 192 -80 WIRE 384 -32 384 -64 WIRE 576 -32 576 -48 WIRE -736 0 -736 -48 WIRE -368 0 -368 -48 WIRE -176 0 -368 0 WIRE 48 0 -176 0 WIRE -368 16 -368 0 WIRE -560 32 -560 16 WIRE -176 48 -176 0 WIRE 576 64 576 48 WIRE -368 112 -368 80 WIRE -560 128 -560 96 WIRE -448 128 -448 -48 WIRE -448 128 -560 128 WIRE -64 128 -128 128 WIRE 128 128 16 128 WIRE 448 128 416 128 WIRE -560 160 -560 128 WIRE 128 160 80 160 WIRE 544 160 416 160 WIRE 656 160 624 160 WIRE 80 192 80 160 WIRE 128 192 80 192 WIRE 512 192 416 192 WIRE 48 224 48 0 WIRE 128 224 48 224 WIRE 448 224 416 224 WIRE -720 240 -800 240 WIRE -608 240 -640 240 WIRE 512 272 512 192 WIRE 544 272 512 272 WIRE 656 272 624 272 WIRE -368 288 -368 192 WIRE -176 288 -176 144 WIRE 80 288 80 192 WIRE -800 304 -800 240 WIRE -560 336 -560 256 WIRE 448 384 448 224 WIRE 544 384 448 384 WIRE 656 384 624 384 WIRE -800 416 -800 384 FLAG 448 128 +12V FLAG 656 160 0 FLAG 656 272 0 FLAG 656 384 0 FLAG 80 288 0 FLAG -176 288 0 FLAG -368 288 0 FLAG 192 -32 0 FLAG 384 -32 0 FLAG -736 0 0 FLAG -560 336 0 FLAG -800 416 0 FLAG 576 64 0 FLAG 576 -48 +12V SYMBOL res 528 176 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R1 SYMATTR Value 5k SYMBOL res 528 288 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R2 SYMATTR Value 5k SYMBOL res 528 400 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R3 SYMATTR Value 10k SYMBOL res -80 144 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R4 SYMATTR Value 10 SYMBOL nmos -128 48 M0 SYMATTR InstName M1 SYMATTR Value IRF7468 SYMBOL res -384 96 R0 SYMATTR InstName R5 SYMATTR Value 22 SYMBOL cap -384 16 R0 SYMATTR InstName C1 SYMATTR Value 2.2n SYMBOL ind2 -384 -144 R0 SYMATTR InstName L2 SYMATTR Value 5µ SYMATTR Type ind SYMBOL ind2 -432 -32 R180 WINDOW 0 36 80 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName L1 SYMATTR Value 800µ SYMATTR Type ind SYMBOL cap 176 -144 R0 WINDOW 39 24 36 Left 2 SYMATTR InstName C2 SYMATTR Value 100µ SYMATTR SpiceLine Rser=50m SYMBOL res 368 -160 R0 SYMATTR InstName R6 SYMATTR Value 5 SYMBOL voltage -736 -144 R0 SYMATTR InstName V1 SYMATTR Value 150 SYMBOL nmos -608 160 R0 SYMATTR InstName M2 SYMATTR Value STP8NM60 SYMBOL cap -576 -176 R0 SYMATTR InstName C3 SYMATTR Value 2n SYMBOL res -576 -80 R0 SYMATTR InstName R7 SYMATTR Value 10 SYMBOL res -736 256 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R8 SYMATTR Value 10 SYMBOL voltage -800 288 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value PULSE(0 10 0 10n 10n 8u 20u) SYMBOL voltage 576 -48 R0 SYMATTR InstName V3 SYMATTR Value 12 SYMBOL diode -576 96 M180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D2 SYMBOL res -640 -192 R0 SYMATTR InstName R9 SYMATTR Value 2k SYMBOL NCP4303A 272 176 R0 SYMATTR InstName U1 TEXT -488 -272 Left 2 !K1 L1 L2 1 TEXT -712 -304 Left 2 !.tran 0 1m 0 .1u uic LINE Normal -416 0 -416 -176 LINE Normal -400 0 -400 -176