Version 4 SHEET 1 1608 680 WIRE 768 -176 624 -176 WIRE 768 -160 768 -176 WIRE 704 -128 528 -128 WIRE 528 -96 528 -128 WIRE 768 -64 768 -80 WIRE 272 0 -32 0 WIRE 624 0 624 -176 WIRE 272 16 272 0 WIRE 528 16 528 -16 WIRE 592 16 528 16 WIRE 704 32 704 -128 WIRE 704 32 656 32 WIRE 768 32 704 32 WIRE -224 48 -400 48 WIRE 592 48 384 48 WIRE -32 64 -32 0 WIRE 528 64 528 16 WIRE -400 80 -400 48 WIRE -224 80 -224 48 WIRE 272 128 272 96 WIRE 384 128 384 48 WIRE 384 128 272 128 WIRE 272 160 272 128 WIRE 528 176 528 144 WIRE -400 192 -400 160 WIRE -304 192 -400 192 WIRE -224 192 -224 160 WIRE -224 192 -304 192 WIRE -304 208 -304 192 WIRE -32 288 -32 144 WIRE 272 288 272 240 WIRE 528 288 528 256 FLAG -32 288 0 FLAG 272 0 out FLAG -304 208 0 FLAG 624 64 0 FLAG 768 -64 0 FLAG 528 288 0 FLAG 272 288 0 FLAG 768 32 Meter SYMBOL bv -32 48 R0 SYMATTR InstName B1 SYMATTR Value V=2.5+12.5m*I(R1) SYMBOL res -240 64 R0 SYMATTR InstName R1 SYMATTR Value 1 SYMBOL voltage -400 64 M0 WINDOW 3 24 96 Invisible 2 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value 0 SYMBOL Opamps\\UniversalOpamp2 624 32 R0 SYMATTR InstName U1 SYMBOL voltage 768 -176 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V3 SYMATTR Value 12 SYMBOL voltage 528 160 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V4 SYMATTR Value 2.495 SYMBOL res 512 48 R0 SYMATTR InstName R2 SYMATTR Value 10K SYMBOL res 512 -112 R0 SYMATTR InstName R3 SYMATTR Value 80.6K SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL res 256 144 R0 SYMATTR InstName R5 SYMATTR Value 1.96K SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL res 256 0 R0 SYMATTR InstName R4 SYMATTR Value 249 SYMATTR SpiceLine tol=1 pwr=0.1 TEXT -568 168 Left 2 !.dc V2 0 30 0.1 TEXT -544 40 Left 2 ;supply TEXT -216 40 Left 2 ;load TEXT 48 56 Left 2 ;HX50 TEXT 576 224 Left 2 ;TL431 RECTANGLE Normal 192 240 -80 -16 2 RECTANGLE Normal -144 240 -272 16 2 RECTANGLE Normal -336 240 -592 16 2