Version 4
SHEET 1 944 680
WIRE 464 -48 112 -48
WIRE 720 -48 464 -48
WIRE 512 16 384 16
WIRE 464 32 464 -48
WIRE 384 48 384 16
WIRE 432 48 384 48
WIRE 592 64 592 16
WIRE 592 64 496 64
WIRE 112 80 112 -48
WIRE 176 80 112 80
WIRE 320 80 256 80
WIRE 352 80 320 80
WIRE 432 80 352 80
WIRE 112 112 112 80
WIRE 592 112 592 64
WIRE 352 128 352 80
WIRE 592 144 592 112
WIRE 800 176 672 176
WIRE 112 208 112 192
WIRE 112 208 64 208
WIRE 720 208 720 -48
WIRE 112 224 112 208
WIRE 352 224 352 192
WIRE 672 224 672 176
WIRE 688 224 672 224
WIRE 800 240 800 176
WIRE 800 240 752 240
WIRE 592 256 592 224
WIRE 688 256 592 256
WIRE 704 256 688 256
WIRE 592 272 592 256
WIRE 592 368 592 352
WIRE 112 400 112 304
WIRE 464 400 464 96
WIRE 464 400 112 400
WIRE 720 400 720 272
WIRE 720 400 464 400
FLAG 64 208 0
FLAG 304 16 0
FLAG 352 224 0
FLAG 592 368 0
FLAG 800 240 Vout
FLAG 592 112 Vreff
FLAG 592 256 Vadj
FLAG 320 80 Vdiode
SYMBOL voltage 112 96 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL voltage 112 208 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 12
SYMBOL res 272 64 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R1
SYMATTR Value 10K
SYMBOL res 608 0 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R2
SYMATTR Value 100K
SYMBOL res 400 0 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R3
SYMATTR Value 100K
SYMBOL References\\LT1009 352 160 R0
SYMATTR InstName U2
SYMBOL res 576 256 R0
SYMATTR InstName R4
SYMATTR Value 1357
SYMBOL res 576 128 R0
SYMATTR InstName R5
SYMATTR Value 1K
SYMBOL Opamps\\LT1792 464 0 R0
SYMATTR InstName U4
SYMBOL Opamps\\LT1792 720 176 R0
SYMATTR InstName U5
TEXT 184 216 Left 0 !.tran 1