Version 4
SHEET 1 1136 680
WIRE 128 -336 128 -352
WIRE 592 -336 128 -336
WIRE 992 -336 592 -336
WIRE 592 -304 592 -336
WIRE 992 -304 992 -336
WIRE 128 -288 128 -336
WIRE 528 -256 400 -256
WIRE 528 -224 528 -256
WIRE 544 -224 528 -224
WIRE 400 -192 400 -256
WIRE 432 -192 400 -192
WIRE 592 -192 592 -208
WIRE 592 -192 512 -192
WIRE 128 -176 128 -208
WIRE 992 -176 992 -224
WIRE 592 -112 592 -192
WIRE 400 -96 400 -192
WIRE 544 -96 400 -96
WIRE 592 -16 592 -32
WIRE 592 16 592 -16
WIRE 32 224 32 208
WIRE 352 224 352 208
WIRE 32 320 32 304
WIRE 352 320 352 304
FLAG 32 320 0
FLAG 32 208 vin
FLAG 352 320 0
FLAG 352 208 vlim
FLAG 128 -176 0
FLAG 128 -352 ilim
FLAG 992 -176 0
FLAG 592 16 0
SYMBOL bv 352 208 R0
WINDOW 0 32 46 Left 2
SYMATTR InstName B1
SYMATTR Value V=table(v(vin),-100,-10.1,-10,-10,10,10,100,10.1)
SYMBOL voltage 32 208 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PWL(0 -20 100m 20)
SYMBOL bi 128 -208 R180
WINDOW 0 -52 83 Left 2
WINDOW 3 -141 12 Left 2
SYMATTR InstName B3
SYMATTR Value I=v(vlim)*6
SYMBOL res 976 -320 R0
SYMATTR InstName R_Last
SYMATTR Value 10
SYMBOL nmos 544 -304 R0
SYMATTR InstName M1
SYMATTR Value BSB012N03LX3
SYMBOL nmos 544 -16 M180
SYMATTR InstName M2
SYMATTR Value BSB012N03LX3
SYMBOL bv 416 -192 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
SYMATTR InstName B2
SYMATTR Value V=abs(v(ilim))-57
TEXT -2 344 Left 2 !.tran 100m