Version 4 SHEET 1 900 688 WIRE -448 16 -640 16 WIRE -368 16 -448 16 WIRE -80 16 -288 16 WIRE -32 16 -80 16 WIRE 64 16 -32 16 WIRE 432 16 64 16 WIRE 608 16 432 16 WIRE 752 16 608 16 WIRE 832 16 752 16 WIRE -448 48 -448 16 WIRE -32 48 -32 16 WIRE 432 48 432 16 WIRE -640 64 -640 16 WIRE 64 96 64 16 WIRE 112 96 64 96 WIRE 384 96 336 96 WIRE 384 128 384 96 WIRE -448 144 -448 128 WIRE 112 160 64 160 WIRE 512 160 336 160 WIRE -640 192 -640 144 WIRE 64 192 64 160 WIRE 368 192 64 192 WIRE 608 192 608 16 WIRE 832 192 832 16 WIRE -368 208 -368 16 WIRE -288 224 -288 16 WIRE -32 224 -32 128 WIRE 112 224 -32 224 WIRE 368 224 368 192 WIRE 368 224 336 224 WIRE -80 240 -80 16 WIRE 112 288 64 288 WIRE 432 288 432 128 WIRE 432 288 336 288 WIRE -448 320 -448 208 WIRE -368 320 -368 288 WIRE -368 320 -448 320 WIRE 384 320 384 128 WIRE -448 352 -448 320 WIRE -640 432 -736 432 WIRE -496 432 -560 432 WIRE 384 432 384 400 WIRE -736 464 -736 432 WIRE -288 480 -288 304 WIRE -80 480 -80 304 WIRE -80 480 -288 480 WIRE 64 480 64 288 WIRE 64 480 -80 480 WIRE 256 480 64 480 WIRE 304 480 256 480 WIRE 432 480 400 480 WIRE 512 480 512 160 WIRE 512 480 432 480 WIRE 608 480 608 256 WIRE 608 480 512 480 WIRE 832 480 832 272 WIRE 832 480 608 480 WIRE -448 496 -448 448 WIRE 512 528 512 480 WIRE -736 592 -736 544 WIRE 256 608 256 480 WIRE 320 608 256 608 WIRE 432 608 432 480 WIRE 432 608 384 608 FLAG 752 16 out FLAG 512 528 0 FLAG 384 128 g FLAG -640 192 0 FLAG -448 496 0 FLAG -736 592 0 SYMBOL ZXGD3105 224 192 R0 SYMATTR InstName U1 SYMBOL res -48 32 R0 SYMATTR InstName R1 SYMATTR Value 18k SYMBOL res 416 32 R0 SYMATTR InstName R2 SYMATTR Value 9.1k SYMBOL nmos 304 432 M90 WINDOW 0 72 48 VLeft 2 WINDOW 3 97 113 VLeft 2 SYMATTR InstName M1 SYMATTR Value SPA11N60C3 SYMBOL cap 592 192 R0 WINDOW 39 24 84 Left 2 SYMATTR SpiceLine Rser=0.1 SYMATTR InstName C1 SYMATTR Value 100µ SYMBOL res 816 176 R0 SYMATTR InstName R3 SYMATTR Value 5 SYMBOL res 368 304 R0 SYMATTR InstName R4 SYMATTR Value 10 SYMBOL cap -96 240 R0 SYMATTR InstName C2 SYMATTR Value 10p SYMBOL ind2 -304 320 M180 WINDOW 0 36 80 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName L1 SYMATTR Value 10µ SYMATTR Type ind SYMATTR SpiceLine Rser=0.1 Cpar=1p SYMBOL ind2 -384 192 R0 SYMATTR InstName L2 SYMATTR Value 1m SYMATTR Type ind SYMATTR SpiceLine Rser=1 Rpar=100k Cpar=10p SYMBOL voltage -640 48 R0 SYMATTR InstName V1 SYMATTR Value 300 SYMBOL nmos -496 352 R0 SYMATTR InstName M2 SYMATTR Value STP8NM60 SYMBOL res -656 448 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R5 SYMATTR Value 10 SYMBOL voltage -736 448 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value PULSE(0 8 0 50n 50n 2u 10u) SYMBOL schottky 384 592 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName D1 SYMATTR Value MBRS360 SYMATTR Description Diode SYMATTR Type diode SYMBOL cap -464 144 R0 SYMATTR InstName C3 SYMATTR Value 1n SYMBOL res -464 32 R0 SYMATTR InstName R6 SYMATTR Value 100 TEXT -224 544 Left 2 !.tran 0 1m 0 10n startup TEXT -224 584 Left 2 ;.options gmin=1e-10 reltol=0.003 TEXT -224 608 Left 2 ;.options method=gear TEXT -384 -16 Left 2 !K1 L1 L2 0.98 TEXT -224 648 Left 2 !.options cshunt=1e-16