Version 4 SHEET 1 880 680 WIRE 64 48 0 48 WIRE 176 48 144 48 WIRE 256 48 176 48 WIRE 384 48 336 48 WIRE 0 96 0 48 WIRE 176 96 176 48 WIRE 0 224 0 176 WIRE 176 224 176 176 WIRE 176 224 0 224 WIRE 384 224 384 48 WIRE 384 224 176 224 WIRE 384 240 384 224 FLAG 384 240 0 FLAG 0 48 a FLAG 176 48 b SYMBOL voltage 0 80 R0 SYMATTR InstName V1 SYMATTR Value 3V SYMBOL current 176 96 R0 SYMATTR InstName I1 SYMATTR Value 500mA SYMBOL res 48 64 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R1 SYMATTR Value 100 SYMBOL res 240 64 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R2 SYMATTR Value 200 TEXT -34 264 Left 2 !.op