Version 4
SHEET 1 1184 680
WIRE 560 -160 416 -160
WIRE 656 -160 560 -160
WIRE 848 -160 736 -160
WIRE 944 -160 864 -160
WIRE 560 -128 560 -160
WIRE 832 -128 560 -128
WIRE 944 -128 944 -160
WIRE 528 -96 512 -96
WIRE 592 -96 544 -96
WIRE 832 -96 832 -128
WIRE 832 -96 816 -96
WIRE 848 -96 848 -160
WIRE 912 -96 848 -96
WIRE 1024 -96 976 -96
WIRE 416 -48 416 -160
WIRE 1024 -48 1024 -96
WIRE 576 -32 496 -32
WIRE 592 -32 576 -32
WIRE 864 -32 864 -160
WIRE 864 -32 816 -32
WIRE 864 -16 864 -32
WIRE 528 32 528 -96
WIRE 592 32 528 32
WIRE 832 32 816 32
WIRE 496 48 496 -32
WIRE 832 80 832 32
WIRE 864 80 864 48
WIRE 864 80 832 80
WIRE 928 80 864 80
WIRE 1024 80 1024 32
WIRE 1024 80 992 80
WIRE 560 96 560 -128
WIRE 592 96 560 96
WIRE 880 96 816 96
WIRE 880 112 880 96
WIRE 416 128 416 32
WIRE 448 128 416 128
WIRE 576 128 576 -32
WIRE 832 128 832 80
WIRE 832 128 576 128
WIRE 448 144 448 128
WIRE 416 176 416 128
WIRE 496 176 496 112
WIRE 496 176 416 176
WIRE 544 176 544 -96
WIRE 544 176 496 176
WIRE 880 176 544 176
FLAG 512 -96 Out
IOPIN 512 -96 Out
FLAG 448 144 0
SYMBOL Robertugo\\555_ALL 752 16 R0
WINDOW 38 -75 81 Left 0
WINDOW 0 -62 -81 Left 0
SYMATTR InstName U1
SYMBOL Robertugo\\Pote 1008 -112 R90
WINDOW 123 54 65 VCenter 0
WINDOW 0 33 102 VRight 0
WINDOW 3 -42 -43 VRight 0
SYMATTR Value2 Set={Cursor}
SYMATTR InstName U2
SYMATTR Value Rt=6e6
SYMBOL res 752 -176 R90
WINDOW 0 45 134 VBottom 0
WINDOW 3 18 -5 VTop 0
SYMATTR InstName Ron
SYMATTR Value 1.8e6
SYMBOL cap 864 112 R0
WINDOW 0 21 8 Left 0
WINDOW 3 26 56 Left 0
SYMATTR InstName Cbp
SYMATTR Value 10n
SYMBOL diode 848 -16 R0
WINDOW 0 41 0 Left 0
WINDOW 3 43 30 Left 0
SYMATTR InstName Don
SYMATTR Value 1N914
SYMBOL diode 928 96 R270
WINDOW 0 22 -21 VTop 0
WINDOW 3 61 35 VBottom 0
SYMATTR InstName Doff
SYMATTR Value 1N914
SYMBOL res 1040 48 R180
WINDOW 0 36 76 Left 0
WINDOW 3 36 52 Left 0
SYMATTR InstName Roff
SYMATTR Value 1.8e6
SYMBOL polcap 512 48 M0
WINDOW 3 24 61 Left 0
WINDOW 0 42 33 Left 0
SYMATTR Value 600µ
SYMATTR InstName Ct
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=16 Irms=825m Rser=0.084 MTBF=6000 Lser=0 Rpar=1e8 mfg="United Chemi-Con" pn="LXF16VB471M10X16LL" type="Al electrolytic" ppPkg=1
SYMBOL voltage 416 -64 R0
WINDOW 3 -13 60 Left 0
SYMATTR Value 10
SYMATTR InstName Vcc
TEXT -296 -152 Left 0 !.params: Vdd 12 Ronx=.1 \n.step param Cursor  0 1 .5\n.meas tran ta FIND time WHEN V(out)={Vdd/2} td=.45 rise=1\n.meas tran tb FIND time WHEN V(out)={Vdd/2} td=.45 rise=11\n.meas tran Frec PARAM 10/(tb-ta)\n.meas tran PerMinutos PARAM 1/Frec/60\n.Meas tran Tc FIND time WHEN V(Out)={Vdd/2} td=.45 fall=1\n.Meas tran Td FIND time WHEN V(Out)={Vdd/2} td=.45 fall=2\n.Meas tran T1 Param  (Tc-Ta)\n.Meas tran T2  Param  (Td-Ta)\n.Meas tran Ton Param If (T1>0, T1, T2)\n.Meas tran Duty% Param  Ton*Frec*100
TEXT 880 -128 Left 0 ;Ron
TEXT 968 -128 Left 0 ;Roff
TEXT 200 -136 Left 0 !.tran 50k