Version 4 SHEET 1 1176 792 WIRE -304 -48 -416 -48 WIRE -96 -48 -304 -48 WIRE 160 -48 -96 -48 WIRE 288 -48 160 -48 WIRE -96 -16 -96 -48 WIRE -304 0 -304 -48 WIRE 288 0 288 -48 WIRE -304 96 -304 64 WIRE 160 112 160 -48 WIRE 128 128 16 128 WIRE 288 144 288 80 WIRE 288 144 192 144 WIRE 352 144 288 144 WIRE -96 160 -96 64 WIRE 96 160 64 160 WIRE 128 160 96 160 WIRE -304 208 -304 176 WIRE -160 208 -304 208 WIRE -416 224 -416 -48 WIRE 160 224 160 176 WIRE 608 224 560 224 WIRE 880 224 800 224 WIRE 480 256 416 256 WIRE 608 256 480 256 WIRE 480 272 480 256 WIRE 848 288 800 288 WIRE -96 304 -96 256 WIRE -48 304 -96 304 WIRE 16 304 16 128 WIRE 16 304 -48 304 WIRE 144 304 16 304 WIRE 288 304 288 144 WIRE 288 304 208 304 WIRE -304 352 -304 208 WIRE -96 368 -96 304 WIRE 64 368 64 160 WIRE 480 384 480 336 WIRE 560 416 560 224 WIRE 848 416 848 288 WIRE 848 416 560 416 WIRE -416 496 -416 304 WIRE -304 496 -304 432 WIRE -96 496 -96 432 WIRE 64 496 64 448 FLAG -416 496 0 FLAG -96 496 0 FLAG -304 496 0 FLAG -48 304 CC FLAG 160 224 0 FLAG 352 144 OUT IOPIN 352 144 Out FLAG 480 384 0 FLAG 416 256 OUT IOPIN 416 256 Out FLAG 64 496 0 FLAG 96 160 CTRL FLAG 880 224 CLOCK IOPIN 880 224 Out FLAG 704 368 0 FLAG 704 144 0 SYMBOL voltage -416 208 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName Vcc SYMATTR Value 15 SYMBOL res -320 80 R0 SYMATTR InstName R2 SYMATTR Value 62k SYMBOL diode -320 0 R0 SYMATTR InstName D1 SYMATTR Value 1N4001 SYMBOL res -320 336 R0 SYMATTR InstName R1 SYMATTR Value 1200k SYMBOL res -112 -32 R0 SYMATTR InstName R3 SYMATTR Value {3k9+14.53k} SYMBOL pnp -160 256 M180 SYMATTR InstName Q1 SYMATTR Value 2N5087 SYMBOL diode 144 320 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName D2 SYMATTR Value 1N4148 SYMBOL Comparators\\LTC1841 160 144 R0 SYMATTR InstName U1 SYMBOL res 272 -16 R0 SYMATTR InstName R4 SYMATTR Value 3k3 SYMBOL cap 464 272 R0 SYMATTR InstName C2 SYMATTR Value 5pF SYMBOL voltage 64 352 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName Vctrl SYMATTR Value PULSE(1 10.31 25u 175u 0 0 175u 1) SYMBOL cap -112 368 R0 SYMATTR InstName C1 SYMATTR Value 47p SYMBOL Dig_Add\\CD4xxx\\cd4013b 704 144 R0 SYMATTR InstName U2 SYMATTR SpiceLine VDD=15 SPEED=1.0 TRIPDT=5e-9 TEXT 152 488 Left 0 !.tran 200u startup TEXT 424 224 Left 0 ;CD4013 in TEXT -72 80 Left 0 ;3k9 + Clock Trim TEXT 104 536 Left 0 ;PULSE(1 4 25u 175u 0 0 175u 1)