Version 4 SHEET 1 1428 840 WIRE -384 336 -464 336 WIRE -464 368 -464 336 WIRE -464 464 -464 448 WIRE -464 464 -832 464 WIRE -608 496 -736 496 WIRE -832 512 -832 464 WIRE -608 512 -608 496 WIRE -464 512 -464 464 WIRE -144 512 -256 512 WIRE -80 512 -144 512 WIRE 224 512 176 512 WIRE 336 512 224 512 WIRE 432 512 336 512 WIRE -256 528 -256 512 WIRE 336 528 336 512 WIRE 432 528 432 512 WIRE -144 544 -144 512 WIRE 224 544 224 512 WIRE -736 608 -736 496 WIRE -608 608 -608 592 WIRE -832 624 -832 592 WIRE -768 624 -832 624 WIRE -464 640 -464 592 WIRE -464 640 -704 640 WIRE -368 640 -464 640 WIRE -256 640 -256 608 WIRE -144 640 -144 608 WIRE 224 640 224 608 WIRE 432 640 432 608 WIRE -768 656 -848 656 WIRE -848 688 -848 656 WIRE -736 704 -736 672 WIRE -368 720 -368 640 WIRE -128 720 -368 720 WIRE 48 720 48 608 WIRE 48 720 -48 720 WIRE 336 720 336 608 WIRE 336 720 48 720 WIRE -848 800 -848 768 WIRE -736 816 -736 784 FLAG -608 608 0 FLAG -736 816 0 FLAG -384 336 0 FLAG -848 800 0 FLAG -256 640 0 FLAG -144 640 0 FLAG 224 640 0 FLAG 432 640 0 FLAG -144 768 0 SYMBOL Opamps\\LTC2055 -736 640 R0 SYMATTR InstName U1 SYMBOL voltage -608 496 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 90 SYMBOL voltage -736 688 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value -5 SYMBOL res -480 496 R0 SYMATTR InstName R1 SYMATTR Value 9K SYMBOL res -480 352 R0 SYMATTR InstName R2 SYMATTR Value 1K SYMBOL voltage -848 672 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V3 SYMATTR Value 2 SYMBOL res -848 496 R0 SYMATTR InstName R3 SYMATTR Value 10K SYMBOL PowerProducts\\LT1083 48 512 R0 SYMATTR InstName U2 SYMBOL voltage -256 512 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V4 SYMATTR Value 30 SYMBOL polcap -160 544 R0 WINDOW 3 24 56 Left 2 SYMATTR InstName C1 SYMATTR Value 10µ SYMATTR Description Capacitor SYMATTR Type cap SYMBOL polcap 208 544 R0 WINDOW 3 24 56 Left 2 SYMATTR InstName C2 SYMATTR Value 100µ SYMATTR Description Capacitor SYMATTR Type cap SYMBOL res 320 512 R0 SYMATTR InstName R4 SYMATTR Value 10K SYMBOL res -32 704 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R5 SYMATTR Value 1K SYMBOL res 416 512 R0 SYMATTR InstName R6 SYMATTR Value 20 TEXT -882 824 Left 2 !.tran 2000m