Version 4
SHEET 1 1024 680
WIRE 800 -16 768 -16
WIRE 928 -16 800 -16
WIRE 800 0 800 -16
WIRE 928 0 928 -16
WIRE 32 32 16 32
WIRE 48 32 32 32
WIRE 160 32 128 32
WIRE 304 32 160 32
WIRE 496 32 384 32
WIRE 576 32 496 32
WIRE 720 32 656 32
WIRE 160 64 160 32
WIRE 800 96 800 80
WIRE 928 96 928 80
WIRE 240 112 224 112
WIRE 336 112 320 112
WIRE 608 112 336 112
WIRE 624 112 608 112
WIRE 608 128 608 112
WIRE 720 128 720 32
WIRE 496 144 496 32
WIRE -192 160 -192 144
WIRE -80 160 -80 144
WIRE 32 160 32 32
WIRE 336 160 336 112
WIRE 496 160 496 144
WIRE 496 160 448 160
WIRE 448 176 448 160
WIRE 800 176 800 160
WIRE 800 176 784 176
WIRE 496 208 496 160
WIRE 928 208 928 176
WIRE 928 208 880 208
WIRE 160 256 160 160
WIRE 336 256 336 224
WIRE 336 256 160 256
WIRE 448 256 448 240
WIRE 448 256 336 256
WIRE 480 256 448 256
WIRE 608 256 608 208
WIRE 608 256 576 256
WIRE 720 256 720 224
WIRE 720 256 608 256
WIRE 752 256 720 256
WIRE 880 256 880 208
WIRE 880 256 864 256
WIRE -192 272 -192 240
WIRE -80 272 -80 240
WIRE 32 272 32 240
WIRE 160 272 160 256
WIRE 928 288 928 272
FLAG -80 272 0
FLAG -80 144 12V
IOPIN -80 144 Out
FLAG 752 256 sgnd
IOPIN 752 256 BiDir
FLAG 496 144 G
FLAG 928 288 0
FLAG 16 32 gs
IOPIN 16 32 BiDir
FLAG 624 112 shd
IOPIN 624 112 In
FLAG -192 272 0
FLAG -192 144 shd
IOPIN -192 144 Out
FLAG 864 256 sgnd
IOPIN 864 256 BiDir
FLAG 32 272 0
FLAG 768 -16 12V
IOPIN 768 -16 In
FLAG 160 272 0
SYMBOL voltage -80 144 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL nmos 576 208 R90
SYMATTR InstName M1
SYMATTR Value IRF6201
SYMBOL npn 224 64 M0
SYMATTR InstName Q1
SYMATTR Value BC547C
SYMBOL res 336 96 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 18k
SYMBOL cap 320 160 R0
SYMATTR InstName C1
SYMATTR Value 100n
SYMBOL res 592 112 R0
SYMATTR InstName R2
SYMATTR Value 100k
SYMBOL schottky 784 160 M180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 400 16 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 3k3
SYMBOL res 144 16 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 8k2
SYMBOL cap 912 208 R0
SYMATTR InstName C2
SYMATTR Value 1µ
SYMBOL pnp 784 128 M0
WINDOW 3 39 53 Left 2
SYMATTR InstName Q2
SYMATTR Value BC557C_X
SYMBOL res 672 16 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 1k
SYMBOL zener 464 240 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value BZX84C10L
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 816 96 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R6
SYMATTR Value 27k
SYMBOL res 912 -16 R0
SYMATTR InstName rl
SYMATTR Value 10
SYMBOL voltage -192 144 R0
WINDOW 3 52 137 VLeft 2
WINDOW 123 0 0 Left 2
WINDOW 39 68 137 VLeft 2
SYMATTR InstName V2
SYMATTR Value PULSE(0 5 100m 100n 100n 100m 200m)
SYMATTR SpiceLine Rser=50
SYMBOL voltage 32 144 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 9
SYMBOL ind 912 80 R0
SYMATTR InstName L1
SYMATTR Value 100m
TEXT -218 -16 Left 2 !.tran 250m startup
TEXT -80 -16 Left 2 !.model BC557C_X ako:BC557C BVbe=5 Ibvbe=100n nbvbe=1.