Version 4
SHEET 1 880 1304
WIRE -1824 -32 -1840 -32
WIRE -1744 0 -1744 -32
WIRE -1872 32 -1872 16
WIRE -1472 48 -1584 48
WIRE -2096 64 -2096 16
WIRE -2016 64 -2016 16
WIRE -1584 80 -1584 48
WIRE -1472 80 -1472 48
WIRE -1792 96 -1792 64
WIRE -1840 112 -1840 -32
WIRE -1840 112 -1872 112
WIRE -1824 112 -1840 112
WIRE -1744 128 -1744 64
WIRE -1744 128 -1760 128
WIRE -1648 128 -1664 128
WIRE -1824 144 -1856 144
WIRE -2096 160 -2096 144
WIRE -2016 160 -2016 144
WIRE -2016 160 -2096 160
WIRE -2096 176 -2096 160
WIRE -1472 176 -1472 160
WIRE -1472 176 -1584 176
WIRE -1792 192 -1792 160
WIRE -1472 208 -1472 176
FLAG -1472 208 0
FLAG -1792 192 0
FLAG -2096 176 0
FLAG -2096 16 Vcc
FLAG -1792 64 Vcc
FLAG -2016 16 Vref
FLAG -1856 144 Vref
FLAG -1584 48 Vload
FLAG -1872 16 Vload
FLAG -1744 128 EAout
FLAG -1840 112 EA-
FLAG -1648 128 Base
SYMBOL voltage -1472 64 R0
WINDOW 123 21 109 Left 2
WINDOW 39 31 86 Left 2
WINDOW 3 31 58 Left 2
WINDOW 0 31 30 Left 2
SYMATTR Value2 AC 1
SYMATTR SpiceLine Rser=16.87
SYMATTR Value 4.84
SYMATTR InstName V3
SYMBOL voltage -2096 48 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL voltage -2016 48 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 3.91
SYMBOL res -1648 112 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 15K
SYMBOL OpAmps\\LT1006 -1792 64 R0
WINDOW 3 -47 106 Left 2
SYMATTR InstName U1
SYMBOL pnp -1648 176 M180
WINDOW 3 -19 101 Invisible 2
SYMATTR Value 2SAR552P
SYMATTR InstName Q1
SYMBOL res -1856 128 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R1
SYMATTR Value 1K
SYMBOL res -1840 -16 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value 1K
SYMBOL cap -1760 0 R0
SYMATTR InstName C1
SYMATTR Value 100n
TEXT -2120 -104 Left 2 ;.ac dec 100 1 10000000
TEXT -2128 -80 Left 2 !.tran 0 300m 0 50u startup