Version 4
SHEET 1 880 680
WIRE 112 -128 112 -144
WIRE -32 -64 -32 -144
WIRE 112 -16 112 -48
WIRE -384 48 -448 48
WIRE -256 48 -304 48
WIRE -32 48 -32 16
WIRE -32 48 -64 48
WIRE 32 48 -32 48
WIRE -448 144 -448 128
WIRE -256 144 -448 144
WIRE -32 144 -64 144
WIRE -448 176 -448 144
WIRE -32 176 -32 144
FLAG -32 176 0
FLAG -32 -144 Vcc
FLAG 112 -144 Vcc
FLAG -448 176 0
FLAG 112 -16 0
FLAG 32 48 Vout
SYMBOL Misc\\EuropeanResistor -48 -80 R0
SYMATTR InstName R1
SYMATTR Value 10K
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL voltage 112 -144 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 24
SYMBOL voltage -448 32 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 0 -35 0 Left 0
WINDOW 3 -48 176 Left 0
SYMATTR InstName V2
SYMATTR Value PULSE(0 10 2m 10u 10u 500u 1m)
SYMBOL Misc\\EuropeanResistor -288 32 R90
WINDOW 0 5 56 VBottom 0
WINDOW 3 27 56 VTop 0
SYMATTR InstName R5
SYMATTR Value 1k
SYMBOL Optos\\PC817D -160 96 R0
SYMATTR InstName U1
TEXT -498 226 Left 0 !.tran 10m