Version 4 SHEET 1 1768 1352 WIRE -400 304 -400 48 WIRE -400 432 -400 304 WIRE -368 304 -400 304 WIRE -368 320 -368 304 WIRE -336 192 -336 160 WIRE -336 336 -336 272 WIRE -288 432 -400 432 WIRE -256 160 -336 160 WIRE -256 240 -256 160 WIRE -256 400 -256 320 WIRE -176 208 -176 192 WIRE -176 336 -336 336 WIRE -176 336 -176 288 WIRE -144 288 -144 224 WIRE -144 432 -224 432 WIRE -144 432 -144 288 WIRE -144 592 -160 592 WIRE -144 592 -144 432 WIRE -128 336 -176 336 WIRE -128 480 -128 336 WIRE -112 192 -176 192 WIRE -112 592 -112 192 WIRE -96 160 -256 160 WIRE -96 192 -112 192 WIRE -96 224 -144 224 WIRE -48 432 -144 432 WIRE -48 592 -112 592 WIRE -16 336 -32 336 WIRE -16 400 -16 336 WIRE 0 336 -16 336 WIRE 48 480 -128 480 WIRE 48 512 48 480 WIRE 112 224 96 224 WIRE 112 336 80 336 WIRE 112 336 112 224 WIRE 144 48 -400 48 WIRE 144 160 96 160 WIRE 144 160 144 48 WIRE 144 432 16 432 WIRE 144 432 144 160 WIRE 144 592 32 592 WIRE 144 592 144 560 WIRE 208 592 144 592 WIRE 240 192 96 192 WIRE 240 208 240 192 WIRE 240 480 48 480 WIRE 240 480 240 272 WIRE 256 160 256 96 WIRE 304 160 256 160 WIRE 304 192 240 192 WIRE 336 48 144 48 WIRE 336 144 336 48 WIRE 336 288 -144 288 WIRE 336 288 336 208 WIRE 352 592 320 592 WIRE 352 592 352 544 WIRE 384 96 256 96 WIRE 384 176 368 176 WIRE 384 176 384 96 WIRE 384 592 352 592 WIRE 384 592 384 176 WIRE 464 176 464 96 WIRE 464 384 464 240 WIRE 480 176 464 176 WIRE 480 240 464 240 WIRE 560 128 560 64 WIRE 560 352 560 288 WIRE 576 544 528 544 WIRE 672 208 640 208 WIRE 672 208 672 192 WIRE 672 352 560 352 WIRE 672 352 672 320 WIRE 688 320 672 320 WIRE 704 432 640 432 WIRE 704 448 704 432 WIRE 704 544 656 544 WIRE 704 544 704 528 WIRE 704 560 704 544 WIRE 736 96 464 96 WIRE 736 208 736 96 WIRE 752 96 736 96 WIRE 768 208 736 208 WIRE 784 384 464 384 WIRE 784 432 784 384 WIRE 784 544 704 544 WIRE 784 544 784 512 WIRE 832 544 784 544 WIRE 848 64 560 64 WIRE 848 144 848 64 WIRE 848 352 672 352 WIRE 848 352 848 288 WIRE 864 64 848 64 WIRE 928 544 912 544 WIRE 960 208 928 208 WIRE 960 320 944 320 WIRE 960 320 960 208 FLAG 352 544 Tri IOPIN 352 544 Out FLAG 144 560 Pul IOPIN 144 560 Out FLAG -32 336 Vc IOPIN -32 336 In FLAG 640 432 Vc IOPIN 640 432 Out FLAG 48 512 0 FLAG -160 592 V- IOPIN -160 592 In FLAG 928 544 V- IOPIN 928 544 Out FLAG 704 560 0 FLAG 528 544 V+ IOPIN 528 544 Out FLAG -368 320 V+ IOPIN -368 320 In FLAG 752 96 Tri IOPIN 752 96 In FLAG 688 320 V- IOPIN 688 320 In FLAG 864 64 V+ IOPIN 864 64 In FLAG 672 192 Pwm IOPIN 672 192 Out FLAG 944 320 Sen IOPIN 944 320 Out SYMBOL 3080 0 176 R0 WINDOW 38 -53 -45 Left 0 WINDOW 0 -24 15 Left 0 SYMATTR SpiceModel LM3080/NS SYMATTR InstName U1 SYMBOL res -352 176 R0 WINDOW 0 -35 31 Left 0 WINDOW 3 -35 65 Left 0 SYMATTR InstName R1 SYMATTR Value 3K3 SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL res -272 224 R0 WINDOW 0 -36 33 Left 0 WINDOW 3 -38 64 Left 0 SYMATTR InstName R3 SYMATTR Value 1E7 SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL Pote -192 416 R90 WINDOW 0 54 19 VRight 0 WINDOW 123 4 129 VCenter 0 WINDOW 3 1 -5 VCenter 0 SYMATTR InstName Simetrķa SYMATTR Value Rt=1e5 SYMBOL res -192 192 R0 WINDOW 0 -23 32 Left 0 WINDOW 3 -35 66 Left 0 SYMATTR InstName R4 SYMATTR Value 3K3 SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL Pote 48 416 R90 WINDOW 0 50 37 VRight 0 WINDOW 123 3 121 VCenter 0 WINDOW 3 2 0 VCenter 0 SYMATTR InstName Freq SYMATTR Value Rt=3k SYMBOL cap 256 272 R180 WINDOW 0 43 34 Left 0 WINDOW 3 24 8 Left 0 SYMATTR InstName C1 SYMATTR Value 100p SYMATTR SpiceLine Rpar=1g SYMBOL voltage 560 544 R270 WINDOW 0 32 0 VRight 0 WINDOW 3 -16 57 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 -50 -63 VRight 0 SYMATTR InstName V1 SYMATTR Value 7.5 SYMATTR SpiceLine Rser=1 Cpar=100n SYMBOL voltage 928 544 M270 WINDOW 0 23 121 VLeft 0 WINDOW 3 -16 57 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 -49 -27 VRight 0 SYMATTR InstName V2 SYMATTR Value -7.5 SYMATTR SpiceLine Rser=1 Cpar=100n SYMBOL res 48 576 R90 WINDOW 0 16 112 VBottom 0 WINDOW 3 -12 -19 VTop 0 SYMATTR InstName R7 SYMATTR Value 270K SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL res 96 320 R90 WINDOW 0 16 112 VBottom 0 WINDOW 3 -11 8 VTop 0 SYMATTR InstName R8 SYMATTR Value 4K7 SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL voltage 704 432 R0 WINDOW 0 -16 59 Left 0 WINDOW 3 -16 57 Invisible 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName Vfc SYMATTR Value PWL(0 -3 30u -3 30.1u 0 40u 0 40.1u 3 50u 3 50.1u 6 60u 6 60.1u 7.5) SYMBOL Dig_Add\\CD4xxx\\CD40106B 272 640 R180 WINDOW 3 -31 88 Left 0 WINDOW 0 53 62 Left 0 SYMATTR InstName U3 SYMATTR SpiceLine VDD=15 SPEED=.4 TRIPDT=5e-9 SYMATTR SpiceModel V+ V- SYMBOL OPAMP5 336 112 R0 WINDOW 0 -27 63 Left 0 WINDOW 38 -76 19 Left 0 SYMATTR InstName U2 SYMATTR SpiceModel TL072 SYMBOL SenCfg 848 208 R0 SYMATTR InstName X1 SYMBOL Pwm 560 208 R0 SYMATTR InstName X2 SYMBOL voltage 784 416 R0 WINDOW 0 50 58 Left 0 WINDOW 3 -16 57 Invisible 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName Vpwm SYMATTR Value PULSE(-.7 .7 20u 25u 25u 0) TEXT -394 70 Left 0 !.tran 0 70u 20u 20n uic TEXT -392 104 Left 0 ;LM3080/NS R7=270k\nLM3080 R7=220k TEXT -384 536 Left 0 !.options Gmin=1e-11