Version 4
SHEET 1 880 680
WIRE -48 -16 -320 -16
WIRE 400 -16 224 -16
WIRE 544 -16 400 -16
WIRE 400 16 400 -16
WIRE -320 32 -320 -16
WIRE -48 48 -48 -16
WIRE 224 128 224 -16
WIRE -320 160 -320 112
WIRE 400 160 400 96
WIRE 544 160 544 -16
WIRE -48 176 -48 128
WIRE 16 176 -48 176
WIRE 160 176 96 176
WIRE -240 224 -320 224
WIRE -112 224 -160 224
WIRE 224 240 224 224
WIRE 352 240 224 240
WIRE -320 272 -320 224
WIRE 224 272 224 240
WIRE -320 400 -320 352
WIRE -48 400 -48 272
WIRE 224 400 224 352
WIRE 400 400 400 256
WIRE 544 400 544 240
FLAG -48 400 0
FLAG 224 400 0
FLAG 400 400 0
FLAG 544 400 0
FLAG -320 160 0
FLAG -320 400 0
SYMBOL npn -112 176 R0
SYMATTR InstName Q1
SYMBOL pnp 160 224 M180
SYMATTR InstName Q2
SYMBOL nmos 352 160 R0
WINDOW 3 57 72 Left 2
SYMATTR InstName M1
SYMBOL res -144 208 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL res -64 32 R0
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL res 0 192 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R3
SYMATTR Value 10k
SYMBOL res 208 256 R0
SYMATTR InstName R4
SYMATTR Value 10k
SYMBOL res 384 0 R0
SYMATTR InstName R5
SYMATTR Value 100
SYMBOL voltage -320 16 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL voltage 544 144 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 12
SYMBOL voltage -320 256 R0
WINDOW 3 -79 186 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value PULSE(0 5 3 0 0 0.5 1 10)
TEXT -400 462 Left 2 !.tran 10