Version 4
SHEET 1 1028 680
WIRE 464 -144 416 -144
WIRE 528 -144 464 -144
WIRE 416 -128 416 -144
WIRE 528 -112 528 -144
WIRE 752 -96 720 -96
WIRE 880 -96 832 -96
WIRE 416 -16 416 -48
WIRE 800 32 800 16
WIRE 336 48 48 48
WIRE 464 48 400 48
WIRE 592 48 464 48
WIRE 720 48 720 -96
WIRE 720 48 672 48
WIRE 768 48 720 48
WIRE 48 64 48 48
WIRE 880 64 880 -96
WIRE 880 64 832 64
WIRE 912 64 880 64
WIRE 768 80 720 80
WIRE 800 112 800 96
WIRE 336 144 112 144
WIRE 528 144 528 -32
WIRE 528 144 400 144
WIRE 592 144 528 144
WIRE 720 144 720 80
WIRE 720 144 672 144
WIRE 48 160 48 144
WIRE 112 160 112 144
WIRE 464 176 464 48
WIRE 720 176 720 144
WIRE 112 256 112 240
WIRE 464 304 464 256
WIRE 720 304 720 256
FLAG 464 -144 +5V
FLAG 800 16 +5V
FLAG 800 112 0
FLAG 464 304 0
FLAG 112 256 0
FLAG 48 160 0
FLAG 416 -16 0
FLAG 48 48 1
FLAG 112 144 2
FLAG 912 64 3
FLAG 720 304 0
SYMBOL voltage 416 -144 R0
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL Misc\\EuropeanResistor 448 160 R0
SYMATTR InstName R2
SYMATTR Value 2.2k
SYMBOL Misc\\EuropeanResistor 512 -128 R0
SYMATTR InstName R3
SYMATTR Value 2.2k
SYMBOL Misc\\EuropeanResistor 736 -80 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R5
SYMATTR Value 2.2k
SYMBOL Misc\\EuropeanResistor 576 64 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R6
SYMATTR Value 2.2k
SYMBOL Misc\\EuropeanResistor 576 160 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R7
SYMATTR Value 2.2k
SYMBOL Opamps\\UniversalOpamp2 800 64 R0
SYMATTR InstName U1
SYMBOL Misc\\EuropeanPolcap 400 32 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 10µ
SYMBOL Misc\\EuropeanPolcap 400 160 M270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C2
SYMATTR Value 10µ
SYMBOL bv 48 48 R0
WINDOW 3 -172 246 Left 2
SYMATTR InstName B1
SYMATTR Value V=if(sin(2*pi*1k*time)>0,sin(2*pi*1k*time),0)
SYMBOL bv 112 144 R0
WINDOW 3 -172 187 Left 2
SYMATTR InstName B2
SYMATTR Value V=if(sin(2*pi*1k*time)<0,-sin(2*pi*1k*time),0)
SYMBOL Misc\\EuropeanResistor 704 160 R0
SYMATTR InstName R8
SYMATTR Value 2.2k
TEXT -64 -128 Left 2 !.tran 0 10m 0 10u