Version 4
SHEET 1 880 680
WIRE -80 -80 -208 -80
WIRE 448 -80 -80 -80
WIRE -80 0 -80 -80
WIRE 480 48 432 48
WIRE 592 48 560 48
WIRE 448 112 448 -80
WIRE -80 128 -80 80
WIRE 352 128 352 48
WIRE 352 128 -80 128
WIRE 416 128 352 128
WIRE 592 144 592 48
WIRE 592 144 480 144
WIRE 640 144 592 144
WIRE -208 160 -208 -80
WIRE 80 160 48 160
WIRE 192 160 160 160
WIRE 240 160 192 160
WIRE 352 160 320 160
WIRE 416 160 352 160
WIRE -80 176 -80 128
WIRE 192 208 192 160
WIRE 48 224 48 160
WIRE 352 224 352 160
WIRE -208 304 -208 240
WIRE -80 304 -80 256
WIRE 192 304 192 272
FLAG -208 304 0
FLAG -80 304 0
FLAG 48 304 0
FLAG 352 304 0
FLAG 448 176 0
FLAG 192 304 0
SYMBOL Opamps\\LT1078A 448 80 R0
SYMATTR InstName U1
SYMBOL voltage -208 144 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Vbatt
SYMATTR Value 3
SYMBOL voltage 48 208 R0
WINDOW 3 24 160 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 24 188 Left 0
SYMATTR Value PULSE(1.4208 2.487 0 1 0 0 1 1)
SYMATTR InstName Vsensor
SYMBOL res -96 -16 R0
SYMATTR InstName R1
SYMATTR Value 215k
SYMBOL res -96 160 R0
SYMATTR InstName R2
SYMATTR Value 190k
SYMBOL res 336 208 R0
SYMATTR InstName R4
SYMATTR Value 108.6k
SYMBOL res 176 144 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName Risensor
SYMATTR Value 6.4k
SYMBOL res 576 32 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R6
SYMATTR Value 50k
SYMBOL res 448 32 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R5
SYMATTR Value 54k
SYMBOL cap 176 208 R0
SYMATTR InstName C1
SYMATTR Value 47n
SYMBOL res 224 176 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R3
SYMATTR Value 100k
TEXT -240 336 Left 0 !.tran 0 1 0 1