Version 4
SHEET 1 896 680
WIRE -32 32 -32 16
WIRE 0 32 -32 32
WIRE 128 32 80 32
WIRE 400 32 128 32
WIRE -32 64 -32 32
WIRE -192 112 -192 96
WIRE 192 112 192 96
WIRE 400 144 400 32
WIRE -32 160 -32 144
WIRE 16 160 -32 160
WIRE 160 160 96 160
WIRE 336 192 304 192
WIRE -192 208 -192 192
WIRE 128 224 128 32
WIRE 160 224 128 224
WIRE -32 240 -32 160
WIRE 400 256 400 240
WIRE 448 256 400 256
WIRE 400 272 400 256
WIRE 192 288 192 272
WIRE -32 336 -32 320
WIRE 400 368 400 352
FLAG -192 208 0
FLAG 192 96 +V
FLAG -192 96 +V
FLAG 192 288 0
FLAG 400 368 0
FLAG -32 336 0
FLAG -32 16 +V
FLAG 448 256 OUT
SYMBOL voltage -192 96 R0
SYMATTR InstName V1
SYMATTR Value 10
SYMBOL opamps\\LT1782 192 192 R0
SYMATTR InstName U1
SYMBOL npn 336 144 R0
SYMATTR InstName Q1
SYMATTR Value 2N3904
SYMBOL res -48 48 R0
SYMATTR InstName R1
SYMATTR Value .2
SYMBOL res 96 16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 200
SYMBOL res 112 144 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 200
SYMBOL res 384 256 R0
SYMATTR InstName R4
SYMATTR Value 2K
SYMBOL current -32 240 R0
SYMATTR InstName I1
SYMATTR Value SINE(1 1 1K)
TEXT 488 320 Left 2 !.tran 3m
TEXT 184 -24 Bottom 2 ;Positive Supply Rail Current Sense