Version 4 SHEET 1 1980 680 WIRE 112 -224 -160 -224 WIRE 192 -224 176 -224 WIRE 272 -224 192 -224 WIRE 336 -224 272 -224 WIRE 544 -224 416 -224 WIRE 832 -224 544 -224 WIRE 1056 -224 928 -224 WIRE 1520 -224 1248 -224 WIRE 1520 -192 1520 -224 WIRE 1296 -176 1264 -176 WIRE 112 -144 64 -144 WIRE 192 -144 192 -224 WIRE 192 -144 176 -144 WIRE 1056 -128 1008 -128 WIRE 1264 -128 1264 -176 WIRE 1264 -128 1248 -128 WIRE 1328 -128 1264 -128 WIRE -160 -112 -160 -224 WIRE -160 -112 -208 -112 WIRE 544 -112 544 -224 WIRE -160 -80 -160 -112 WIRE 96 -80 -160 -80 WIRE 1328 -64 1328 -128 WIRE 272 -48 272 -224 WIRE 496 -48 272 -48 WIRE 880 -48 880 -160 WIRE 880 -48 592 -48 WIRE -160 -32 -160 -80 WIRE 1520 -32 1520 -112 WIRE 880 48 880 -48 WIRE 1328 80 1328 16 WIRE -160 128 -160 48 WIRE 64 128 64 -144 WIRE 64 128 -160 128 WIRE 96 128 96 -80 WIRE 112 128 96 128 WIRE 208 128 176 128 WIRE -160 208 -160 128 WIRE 112 208 -160 208 WIRE 208 208 208 128 WIRE 208 208 176 208 WIRE 880 208 880 128 WIRE 880 208 208 208 WIRE 1008 208 1008 -128 WIRE 1008 208 880 208 WIRE -160 336 -160 208 FLAG -160 336 0 FLAG 1328 80 0 FLAG 1520 -32 0 FLAG 1296 -176 Opto-Out IOPIN 1296 -176 Out FLAG -208 -112 Input IOPIN -208 -112 In SYMBOL voltage -160 -48 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value SINE(0 325 50) SYMBOL pnp 592 -112 R90 SYMATTR InstName Q1 SYMATTR Value BC857C SYMBOL res 432 -240 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 390R SYMBOL pnp 928 -160 M270 SYMATTR InstName Q2 SYMATTR Value FZT560 SYMBOL res 864 32 R0 SYMATTR InstName R2 SYMATTR Value 200K SYMBOL Optos\\PC817C 1152 -176 R0 SYMATTR InstName U1 SYMBOL voltage 1520 -208 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value 5V SYMBOL res 1312 -80 R0 SYMATTR InstName R3 SYMATTR Value 10K SYMBOL diode 112 -240 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName D1 SYMATTR Value 1N4007 SYMBOL diode 112 -128 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D2 SYMATTR Value 1N4007 SYMBOL diode 176 192 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName D3 SYMATTR Value 1N4007 SYMBOL diode 176 112 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName D4 SYMATTR Value 1N4007 TEXT -136 256 Left 2 !.tran 1s startup uic TEXT 992 240 Left 2 !.MODEL FZT560 PNP IS=4E-14 NF=0.98 BF=140 VAF=104 ISE=1E-12 NE=1.54\n+RCO=100 GAMMA=1.5E-7 NR=1 BR=2 VAR=100 ISC=1e-13 NC=2 IKR=10E-3\n+RB=25 RE=.3 RC=.3 CJC=29E-12 MJC=0.364 VJC=0.511 CJE=100.3E-12\n+MJE=0.419 VJE=0.877 TF=2E-10 TR=1.5e-6 XTB=1.5 QUASIMOD=1 TEXT 112 296 Left 2 !.MODEL 1N4007 D ( IS=76.9p RS=42.0m BV=1.00k IBV=5.00u\n+ CJO=26.5p M=0.333 N=1.45 TT=4.32u )