Version 4
SHEET 1 1196 680
WIRE -128 -48 -208 -48
WIRE 0 -48 -48 -48
WIRE 32 -48 0 -48
WIRE 80 -48 32 -48
WIRE 176 -48 144 -48
WIRE 288 -48 176 -48
WIRE 432 -48 288 -48
WIRE 576 -48 512 -48
WIRE 960 -48 768 -48
WIRE 960 -32 960 -48
WIRE 288 -16 288 -48
WIRE -208 0 -208 -48
WIRE 0 0 0 -48
WIRE 576 48 560 48
WIRE 832 48 768 48
WIRE 0 64 -32 64
WIRE 64 64 0 64
WIRE 80 64 64 64
WIRE 176 64 176 -48
WIRE 176 64 144 64
WIRE 960 80 960 48
WIRE -208 112 -208 80
WIRE -128 112 -208 112
WIRE -32 112 -32 64
WIRE -32 112 -48 112
WIRE 176 112 176 64
WIRE 512 112 240 112
WIRE 512 128 512 112
WIRE 560 128 560 48
WIRE 592 128 560 128
WIRE 288 192 288 48
WIRE 368 192 288 192
WIRE 464 192 368 192
WIRE 592 192 592 128
WIRE 592 192 560 192
WIRE 832 208 832 48
WIRE 960 208 960 160
WIRE 960 208 832 208
WIRE 64 240 64 64
WIRE 80 240 64 240
WIRE 176 240 176 192
WIRE 176 240 144 240
WIRE 368 240 368 192
WIRE 288 272 288 192
WIRE 832 272 832 208
WIRE 32 352 32 -48
WIRE 80 352 32 352
WIRE 176 352 176 240
WIRE 176 352 144 352
WIRE 240 352 240 112
WIRE 240 352 176 352
WIRE 288 352 288 336
WIRE 288 352 240 352
FLAG 368 240 0
FLAG 832 272 0
SYMBOL voltage -208 -16 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value SINE(0 324 50 0 0 0 0)
SYMBOL res -32 -64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 330k
SYMBOL res -32 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 330k
SYMBOL cap -16 0 R0
SYMATTR InstName C1
SYMATTR Value 1n
SYMBOL diode 80 -32 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMBOL diode 80 80 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D2
SYMBOL diode 144 224 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D3
SYMBOL diode 144 336 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D4
SYMBOL res 160 96 R0
SYMATTR InstName R3
SYMATTR Value 22k
SYMBOL cap 272 -16 R0
SYMATTR InstName C2
SYMATTR Value 10µ
SYMBOL diode 272 272 R0
SYMATTR InstName D5
SYMBOL res 528 -64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 1000
SYMBOL npn 560 128 R90
SYMATTR InstName Q1
SYMBOL Optos\\PC817A 672 0 R0
SYMATTR InstName U1
SYMBOL voltage 960 64 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 5v
SYMBOL res 944 -48 R0
SYMATTR InstName R5
SYMATTR Value 4700
TEXT -240 400 Left 2 !.tran 200ms