Version 4
SHEET 1 880 680
WIRE -656 112 -704 112
WIRE -192 112 -272 112
WIRE 32 112 0 112
WIRE -96 208 -96 176
WIRE 112 208 112 112
FLAG -784 112 0
FLAG 112 288 0
FLAG -96 208 0
SYMBOL voltage -688 112 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 48
SYMBOL LED -656 96 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 -116 47 Bottom 2
SYMATTR InstName D2
SYMATTR Value LXK2-PW14
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED -592 96 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 -113 42 Bottom 2
SYMATTR InstName D1
SYMATTR Value LXK2-PW14
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED -528 96 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 -113 48 Bottom 2
SYMATTR InstName D3
SYMATTR Value LXK2-PW14
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED -464 96 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 -118 48 Bottom 2
SYMATTR InstName D4
SYMATTR Value LXK2-PW14
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED -400 96 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 -117 43 Bottom 2
SYMATTR InstName D5
SYMATTR Value LXK2-PW14
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED -336 96 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 -114 47 Bottom 2
SYMATTR InstName D6
SYMATTR Value LXK2-PW14
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 128 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 20
SYMBOL res 128 304 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R2
SYMATTR Value {Rv}
SYMBOL LM317TI -96 112 R0
SYMATTR InstName U1
TEXT -536 248 Left 2 !.step param Rv list 50 40 30 20 10 5
TEXT -808 312 Left 2 !.tran 100m
TEXT -192 0 Left 2 ;.lib LM317TI.sub