Version 4
SHEET 1 880 680
WIRE 240 -80 96 -80
WIRE 416 -80 240 -80
WIRE 240 -64 240 -80
WIRE 416 -16 416 -80
WIRE 96 16 96 -80
WIRE 240 32 240 16
WIRE 32 64 -32 64
WIRE 416 112 416 64
WIRE -112 128 -112 64
WIRE 240 128 240 96
WIRE -320 176 -432 176
WIRE -176 176 -240 176
WIRE -432 192 -432 176
WIRE 96 208 96 112
WIRE 192 208 96 208
WIRE 96 240 96 208
WIRE -112 272 -112 224
WIRE 240 288 240 224
WIRE -432 304 -432 272
WIRE 96 352 96 320
FLAG 240 288 0
FLAG 96 352 0
FLAG -112 272 0
FLAG 416 112 0
FLAG -432 304 0
SYMBOL nmos 192 128 R0
SYMATTR InstName M1
SYMATTR Value IRFH5250
SYMBOL diode 224 32 R0
SYMATTR InstName D1
SYMBOL res 80 224 R0
SYMATTR InstName R1
SYMATTR Value 4.7k
SYMBOL pnp 32 112 M180
SYMATTR InstName Q1
SYMATTR Value BC556B
SYMBOL res -16 48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL npn -176 128 R0
SYMATTR InstName Q2
SYMATTR Value BC547B
SYMBOL res -224 160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 3.3k
SYMBOL voltage 416 -32 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 124 Left 2
SYMATTR InstName V1
SYMATTR Value 24V
SYMATTR SpiceLine Rser=100m
SYMBOL res 224 -80 R0
SYMATTR InstName R4
SYMATTR Value 10
SYMBOL voltage -432 176 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value PULSE(0 3.3V 0 0 0 1000µ 2000µ)
SYMATTR Value2 AC 1
TEXT -466 376 Left 2 !.tran 0.1