Version 4
SHEET 1 1672 756
WIRE -336 -112 -496 -112
WIRE -208 -112 -272 -112
WIRE -128 -112 -208 -112
WIRE -48 -112 -128 -112
WIRE 112 -112 -48 -112
WIRE 208 -112 192 -112
WIRE 224 -112 208 -112
WIRE 400 -112 320 -112
WIRE 608 -112 400 -112
WIRE 720 -112 608 -112
WIRE 912 -112 800 -112
WIRE 1024 -112 912 -112
WIRE -496 -96 -496 -112
WIRE 608 -96 608 -112
WIRE 912 -96 912 -112
WIRE 1024 -96 1024 -112
WIRE -48 -80 -48 -112
WIRE 784 -48 784 -64
WIRE -128 -16 -128 -112
WIRE -496 0 -496 -16
WIRE 608 0 608 -16
WIRE 736 0 736 -64
WIRE 912 0 912 -16
WIRE 1024 0 1024 -32
WIRE 112 32 112 -112
WIRE 208 32 208 -112
WIRE 304 32 304 -64
WIRE 400 32 400 -112
WIRE -208 80 -208 -112
WIRE 0 80 -208 80
WIRE 736 96 736 80
WIRE 528 112 512 112
WIRE 608 112 592 112
WIRE -48 128 -48 0
WIRE 0 128 -48 128
WIRE 0 176 -32 176
WIRE 608 176 512 176
WIRE -128 224 -128 64
WIRE 0 224 -128 224
WIRE 528 240 512 240
WIRE 608 240 592 240
WIRE -208 272 -208 80
WIRE 0 272 -208 272
WIRE 304 400 304 320
WIRE -208 448 -208 272
WIRE 112 448 112 320
WIRE 112 448 -208 448
WIRE 208 448 208 320
WIRE 208 448 192 448
WIRE 224 448 208 448
WIRE 400 448 400 320
WIRE 400 448 320 448
WIRE 592 448 400 448
WIRE 704 448 592 448
WIRE 592 464 592 448
WIRE 704 464 704 448
WIRE -208 480 -208 448
WIRE 592 560 592 544
WIRE 704 560 704 528
WIRE -208 576 -208 544
FLAG -496 0 0
FLAG 608 0 0
FLAG 1024 0 0
FLAG 736 96 0
FLAG 608 176 0
FLAG 784 -48 0
FLAG 592 560 0
FLAG 704 560 0
FLAG -208 576 0
FLAG 912 0 0
FLAG -32 176 0
FLAG 608 112 0
FLAG 608 240 0
SYMBOL nmos 224 -64 R270
WINDOW 0 88 47 VTop 2
WINDOW 3 53 47 VTop 2
SYMATTR InstName Q1
SYMATTR Value FDMS86500DC
SYMBOL res 96 -96 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 30m
SYMBOL voltage -496 -112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PWL(0 0 2m 12)
SYMBOL nmos 224 400 M90
WINDOW 0 -13 64 VLeft 2
WINDOW 3 77 -5 VRight 2
SYMATTR InstName Q2
SYMATTR Value FDMS86500DC
SYMBOL res 96 464 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value 30m
SYMBOL sw 816 -112 M270
WINDOW 0 31 26 VLeft 2
WINDOW 3 -28 22 VLeft 2
SYMATTR InstName S1
SYMATTR Value SWIT
SYMBOL res 592 -112 R0
SYMATTR InstName R3
SYMATTR Value 20
SYMBOL cap 1008 -96 R0
WINDOW 123 23 67 Left 2
WINDOW 3 39 36 Left 2
SYMATTR Value2 Rser=10m
SYMATTR Value 1µ
SYMATTR InstName C1
SYMBOL voltage 736 -16 R0
WINDOW 123 24 138 Left 2
WINDOW 39 24 117 Left 2
SYMATTR InstName V2
SYMATTR Value PWL(0 0 60m 0 60.01m 1 100m 1 100.01m 0)
SYMBOL cap 528 128 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C2
SYMATTR Value 220n
SYMBOL cap 592 224 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 220n
SYMBOL res -64 -96 R0
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL res -144 -32 R0
SYMATTR InstName R5
SYMATTR Value 10K
SYMBOL schottky -336 -96 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value SS3P5
SYMBOL res 576 448 R0
SYMATTR InstName R6
SYMATTR Value 100
SYMBOL cap 688 464 R0
WINDOW 123 23 59 Left 2
WINDOW 3 41 34 Left 2
SYMATTR Value2 Rser=10m
SYMATTR Value 1m
SYMATTR InstName C4
SYMBOL TVSdiode -224 544 M180
WINDOW 0 24 65 Left 2
WINDOW 3 24 -2 Left 2
SYMATTR InstName D2
SYMATTR Value SMCJ33A
SYMATTR Type zener
SYMBOL LTC4226-2 256 192 R0
SYMATTR InstName U1
SYMBOL res 896 -112 R0
SYMATTR InstName R7
SYMATTR Value 1
TEXT 488 600 Left 2 !.tran 1\n.model SWIT SW(Ron=1m Roff=1K Vt=.5 Vh=.1)