Version 4
SHEET 1 1248 692
WIRE 256 240 160 240
WIRE 432 240 256 240
WIRE 624 240 432 240
WIRE 768 240 624 240
WIRE 960 240 768 240
WIRE 1120 240 960 240
WIRE 160 256 160 240
WIRE 160 256 144 256
WIRE 624 272 624 240
WIRE 960 288 960 240
WIRE 1120 288 1120 240
WIRE 768 304 768 240
WIRE 560 320 496 320
WIRE 432 368 432 240
WIRE 656 368 624 368
WIRE 960 384 960 368
WIRE 656 400 656 368
WIRE 1120 432 1120 368
WIRE 1120 432 1024 432
WIRE 160 464 160 256
WIRE 256 464 256 240
WIRE 496 464 496 416
WIRE 656 496 656 480
WIRE 768 496 768 384
WIRE 768 496 656 496
WIRE 1120 496 1120 432
WIRE 656 512 656 496
WIRE 160 624 160 528
WIRE 256 624 256 544
WIRE 256 624 160 624
WIRE 496 624 496 544
WIRE 496 624 256 624
WIRE 656 624 656 592
WIRE 656 624 496 624
WIRE 960 624 960 480
WIRE 960 624 656 624
WIRE 1120 624 1120 560
WIRE 1120 624 960 624
WIRE 256 672 256 624
FLAG 256 672 0
FLAG 144 256 inside_cell
IOPIN 144 256 Out
SYMBOL npn 1024 384 M0
SYMATTR InstName Q1
SYMATTR Value 2N3904
SYMBOL npn 432 320 R0
SYMATTR InstName Q2
SYMATTR Value 2N3904
SYMBOL pnp2 560 272 R0
SYMATTR InstName Q3
SYMATTR Value 2N3906
SYMBOL cap 1104 496 R0
SYMATTR InstName C1
SYMATTR Value 1µ
SYMATTR SpiceLine V=10 Irms=0 Rser=0.009 Lser=0 mfg="TDK" pn="C1608X5RIA105K" type="X5R"
SYMBOL polcap 144 464 R0
WINDOW 3 24 64 Left 0
SYMATTR Value 0.47µ
SYMATTR InstName C2
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=50 Irms=22m Rser=3.9 Lser=0 mfg="Nichicon" pn="UPL1HR47MAH" type="Al electrolytic"
SYMBOL res 240 448 R0
SYMATTR InstName R1
SYMATTR Value 100k
SYMBOL res 480 448 R0
SYMATTR InstName R2
SYMATTR Value 100k
SYMBOL res 640 384 R0
SYMATTR InstName R3
SYMATTR Value 2000
SYMBOL voltage 656 496 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL res 752 288 R0
SYMATTR InstName R4
SYMATTR Value 500k
SYMBOL res 1104 272 R0
SYMATTR InstName R5
SYMATTR Value 100k
SYMBOL res 944 272 R0
SYMATTR InstName R6
SYMATTR Value 600
TEXT 208 656 Left 0 !.tran 0 0.15 0 .0001
TEXT 384 208 Left 0 ;Depolarizing Current: activate and leak
TEXT 936 208 Left 0 ;Repolarizing Current
TEXT 64 208 Left 0 ;Passive membrane RC