Version 4
SHEET 1 996 1028
WIRE 0 256 -16 256
WIRE 576 352 448 352
WIRE 752 352 576 352
WIRE 96 432 -48 432
WIRE 448 432 448 352
WIRE 448 432 320 432
WIRE 576 448 576 352
WIRE 96 496 -320 496
WIRE 384 496 320 496
WIRE 752 496 752 352
WIRE -144 560 -208 560
WIRE 96 560 -144 560
WIRE 384 560 384 496
WIRE 384 560 320 560
WIRE 560 560 384 560
WIRE 576 560 576 528
WIRE 576 560 560 560
WIRE 96 624 32 624
WIRE 384 624 320 624
WIRE -320 640 -320 496
WIRE -208 656 -208 560
WIRE 560 688 560 560
WIRE 32 704 32 624
WIRE 448 704 448 432
WIRE 448 704 32 704
WIRE 384 752 384 624
WIRE 752 752 752 576
WIRE -320 768 -320 720
WIRE -208 768 -208 736
WIRE -48 784 -48 432
WIRE 384 880 384 832
FLAG -320 768 0
FLAG 752 752 0
FLAG -144 560 PWMOUT
FLAG -208 768 0
FLAG -48 784 0
FLAG -320 496 Clock
FLAG 560 752 0
FLAG 384 880 0
SYMBOL res -224 640 R0
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL voltage 752 480 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL voltage -320 624 R0
WINDOW 123 24 146 Left 0
WINDOW 39 24 125 Left 0
WINDOW 3 -347 103 Left 2
SYMATTR Value PULSE(0 5 0 0 0 1.8m 2m)
SYMATTR InstName V2
SYMBOL Misc\\NE555 208 528 R0
SYMATTR InstName U2
SYMBOL cap 544 688 R0
SYMATTR InstName C2
SYMATTR Value 470n
SYMBOL res 560 432 R0
SYMATTR InstName R2
SYMATTR Value 1348
SYMBOL voltage 384 736 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Control_Voltage
SYMATTR Value PULSE(0 5 0 50m 50m 0 100ms)
TEXT -672 904 Left 2 !.tran 200m