Version 4 SHEET 1 880 680 WIRE 32 -16 0 -16 WIRE 128 -16 96 -16 WIRE 0 48 0 -16 WIRE 32 48 0 48 WIRE 128 48 128 -16 WIRE 128 48 96 48 WIRE -112 128 -192 128 WIRE 0 128 0 48 WIRE 0 128 -32 128 WIRE 32 128 0 128 WIRE -192 144 -192 128 WIRE 128 144 128 48 WIRE 128 144 96 144 WIRE 208 144 128 144 WIRE 32 160 0 160 WIRE -192 240 -192 224 WIRE 0 240 0 160 WIRE 0 240 -192 240 WIRE 208 240 0 240 WIRE 208 256 208 240 FLAG 208 256 0 FLAG 208 144 Vout FLAG -192 128 Vin SYMBOL Opamps\\opamp 64 80 R0 WINDOW 0 0 32 Invisible 0 SYMATTR InstName U1 SYMBOL voltage -192 128 R0 WINDOW 0 24 16 Invisible 0 WINDOW 3 -96 204 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value SINE(1V 1V 1kHz 0) SYMBOL res -128 144 R270 WINDOW 0 32 56 Invisible 0 WINDOW 3 -4 65 VBottom 0 SYMATTR InstName R1 SYMATTR Value 1K SYMBOL diode 32 32 M90 WINDOW 0 0 32 Invisible 0 WINDOW 3 32 32 Invisible 0 SYMATTR InstName D1 SYMBOL diode 96 -32 R90 WINDOW 0 0 32 Invisible 0 WINDOW 3 32 32 Invisible 0 SYMATTR InstName D2 TEXT -288 360 Left 0 !.tran 20ms TEXT -288 384 Left 0 !.lib opamp.sub