Version 4
SHEET 1 896 680
WIRE 352 -112 176 -112
WIRE 400 -112 352 -112
WIRE 496 -112 480 -112
WIRE 352 -80 352 -112
WIRE 16 0 16 -16
WIRE 352 16 352 0
WIRE 240 64 240 32
WIRE 272 64 272 48
WIRE 176 80 176 -112
WIRE 224 80 176 80
WIRE 368 96 288 96
WIRE 496 96 496 -112
WIRE 496 96 432 96
WIRE 544 96 496 96
WIRE 16 112 16 80
WIRE 80 112 16 112
WIRE 224 112 160 112
WIRE -144 144 -144 128
WIRE 16 144 16 112
WIRE 240 160 240 128
WIRE -144 240 -144 224
WIRE 16 240 16 224
FLAG -144 240 0
FLAG 240 32 +V
FLAG -144 128 +V
FLAG 240 160 0
FLAG 16 240 0
FLAG 16 -16 0
FLAG 544 96 OUT
FLAG 352 16 0
FLAG 272 128 0
SYMBOL voltage -144 128 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 28
SYMBOL diode 368 112 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL res 176 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 10
SYMBOL res 0 128 R0
SYMATTR InstName Rsense
SYMATTR Value 1m
SYMBOL current 16 0 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Isense
SYMATTR Value 0
SYMBOL res 336 -96 R0
SYMATTR InstName R2
SYMATTR Value 10
SYMBOL res 496 -128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 1K
SYMBOL LTC2058 256 96 R0
WINDOW 3 3 76 Left 2
WINDOW 0 35 -51 Left 2
SYMATTR InstName U1
TEXT 168 -160 Bottom 2 ;Low Side Current Sense Amplifier\nV(out) = 101*Rsense*Isense
TEXT 424 248 Left 2 !.dc Isense 0 .1 10m