Version 4
SHEET 1 880 680
WIRE 96 -96 -16 -96
WIRE -16 -64 -16 -96
WIRE 96 -64 96 -96
WIRE -16 160 -48 160
WIRE 176 160 -16 160
WIRE -176 176 -176 160
WIRE -144 176 -176 176
WIRE 272 176 240 176
WIRE 304 176 272 176
WIRE -176 192 -176 176
WIRE -144 192 -144 176
WIRE 32 192 16 192
WIRE 144 192 112 192
WIRE 176 192 144 192
WIRE -48 208 -48 160
WIRE 144 272 144 192
WIRE 160 272 144 272
WIRE 272 272 272 176
WIRE 272 272 240 272
WIRE 16 288 16 192
FLAG -144 192 0
FLAG -176 272 -Ub
FLAG 208 208 -Ub
FLAG -176 80 +Ub
FLAG 208 144 +Ub
FLAG -48 288 0
FLAG 16 288 0
FLAG -16 160 Vvar
FLAG 144 192 +INP
FLAG 304 176 out
FLAG -16 16 0
FLAG 96 16 0
SYMBOL OPAs\\LT\ 11x-13x_asy\\LT1001 208 112 R0
SYMATTR InstName U1
SYMBOL res 256 256 R90
WINDOW 0 6 56 VBottom 2
WINDOW 3 26 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 100k
SYMBOL voltage -176 176 M0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL voltage -176 64 M0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 12
SYMBOL voltage -48 192 M0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V_Sinus
SYMATTR Value SINE(0 5 1k)
SYMBOL res 128 176 R90
WINDOW 0 6 56 VBottom 2
WINDOW 3 26 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL voltage -16 -80 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V_Dreieck
SYMATTR Value PULSE(-12 +12 0 1.5m 1.5m 1n)
SYMBOL res 80 -80 R0
SYMATTR InstName R1
SYMATTR Value 1k
TEXT -222 336 Left 2 !.tran 3m