Version 4
SHEET 1 880 680
WIRE 144 48 144 32
WIRE 96 144 80 144
WIRE 144 144 144 128
WIRE 160 144 144 144
WIRE 144 160 144 144
WIRE 144 256 144 240
FLAG 144 32 1
IOPIN 144 32 BiDir
FLAG 144 256 2
IOPIN 144 256 BiDir
FLAG 160 144 3
IOPIN 160 144 BiDir
FLAG 80 144 Vw
IOPIN 80 144 In
SYMBOL res 128 32 R0
SYMATTR InstName R1
SYMATTR Value R=max(Rges/(47*V(Vw)+1),1n)
SYMBOL res 128 144 R0
SYMATTR InstName R2
SYMATTR Value R=max(Rges*(1-1/(47*V(Vw)+1)),1n)