Version 4
SHEET 1 888 680
WIRE -16 -80 -640 -80
WIRE 368 -64 48 -64
WIRE 464 -64 368 -64
WIRE 576 -64 464 -64
WIRE 720 -64 576 -64
WIRE -944 -48 -944 -64
WIRE 720 -48 720 -64
WIRE -720 -32 -848 -32
WIRE 464 -16 464 -64
WIRE -720 0 -720 -32
WIRE -368 0 -432 0
WIRE -240 0 -288 0
WIRE -16 16 -16 -80
WIRE 416 16 -16 16
WIRE 576 32 576 -64
WIRE -848 64 -848 -32
WIRE 112 80 80 80
WIRE 368 80 368 -64
WIRE 368 80 336 80
WIRE 464 96 464 48
WIRE 720 96 720 32
WIRE -720 112 -720 80
WIRE -608 112 -720 112
WIRE -496 112 -528 112
WIRE -336 112 -368 112
WIRE 80 112 80 80
WIRE -16 144 -16 16
WIRE 112 144 -16 144
WIRE 480 144 336 144
WIRE -720 160 -720 112
WIRE -16 160 -16 144
WIRE 480 160 480 144
WIRE -368 176 -368 112
WIRE -432 192 -432 0
WIRE -400 192 -432 192
WIRE -240 208 -240 0
WIRE -240 208 -336 208
WIRE -192 208 -240 208
WIRE 416 208 416 16
WIRE 416 208 336 208
WIRE -640 224 -640 -80
WIRE -608 224 -640 224
WIRE -496 224 -496 112
WIRE -496 224 -528 224
WIRE -400 224 -496 224
WIRE -16 240 -16 224
WIRE 416 256 416 208
WIRE 480 256 480 240
WIRE 480 256 416 256
WIRE 576 256 576 112
WIRE 576 256 480 256
WIRE -848 272 -848 144
WIRE -720 272 -720 240
WIRE -720 272 -848 272
WIRE 48 272 48 -64
WIRE 112 272 48 272
WIRE 384 272 336 272
WIRE -496 304 -496 224
WIRE -368 304 -368 240
WIRE -720 320 -720 272
WIRE 384 336 384 272
WIRE 384 416 384 400
WIRE -496 432 -496 384
FLAG -16 240 0
FLAG 464 96 0
FLAG 80 112 0
FLAG 384 416 0
FLAG 720 96 0
FLAG -16 144 d_scie
FLAG -496 432 0
FLAG -368 304 0
FLAG -944 -48 0
FLAG -944 -144 Vcc
FLAG -336 112 Vcc
FLAG -720 320 0
FLAG -192 208 Out
SYMBOL Misc\\NE555 224 176 R0
SYMATTR InstName U1
SYMBOL res 592 128 R180
WINDOW 0 -47 79 Left 2
WINDOW 3 -52 34 Left 2
SYMATTR InstName RA
SYMATTR Value 11k
SYMBOL cap -32 160 R0
WINDOW 0 -40 27 Left 2
WINDOW 3 -66 57 Left 2
SYMATTR InstName C
SYMATTR Value 100nF
SYMATTR SpiceLine V=50 Irms=0 Rser=0 Lser=0
SYMBOL res 464 144 R0
SYMATTR InstName RB
SYMATTR Value 100
SYMBOL cap 448 -16 R0
WINDOW 0 38 18 Left 2
WINDOW 3 24 64 Left 2
SYMATTR InstName C2
SYMATTR Value 0.01µ
SYMATTR SpiceLine V=16 Irms=0 Rser=0.0158 Lser=350p mfg="Würth Elektronik" pn="885012008017 WCAP-CSGP 1206" type="NP0"
SYMBOL voltage 720 -64 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL cap 368 336 R0
SYMATTR InstName C3
SYMATTR Value 0.001µ
SYMATTR SpiceLine V=16 Irms=0 Rser=0.044 Lser=420p mfg="Würth Elektronik" pn="885012006029 WCAP-CSGP 0603" type="NP0"
SYMBOL res -512 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 100k
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL res -272 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL res -512 208 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 220k
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL res -480 400 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R4
SYMATTR Value 100k
SYMBOL voltage -944 -160 R0
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL res -736 144 R0
SYMATTR InstName R5
SYMATTR Value 1k
SYMBOL res -736 -16 R0
SYMATTR InstName R6
SYMATTR Value 2400
SYMBOL voltage -848 48 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V4
SYMATTR Value 5
SYMBOL OpAmps\\AD820 -368 144 R0
SYMATTR InstName U2
TEXT -72 336 Left 2 !.tran 20m startup