Version 4 SHEET 1 1140 680 WIRE -272 -128 -368 -128 WIRE -144 -128 -272 -128 WIRE 288 -128 -144 -128 WIRE 528 -128 288 -128 WIRE 752 -128 528 -128 WIRE 528 -112 528 -128 WIRE 368 -96 -80 -96 WIRE 336 -48 -32 -48 WIRE 528 -32 400 -32 WIRE 640 -32 528 -32 WIRE 752 -32 752 -64 WIRE 832 -32 752 -32 WIRE 0 0 -224 0 WIRE 288 0 288 -128 WIRE 288 0 224 0 WIRE 368 32 368 -96 WIRE 400 32 368 32 WIRE 832 32 752 32 WIRE -368 64 -368 -128 WIRE -32 64 -32 -48 WIRE 0 64 -32 64 WIRE 288 64 224 64 WIRE 400 64 400 32 WIRE 416 64 400 64 WIRE 512 64 496 64 WIRE 528 64 512 64 WIRE 640 64 640 32 WIRE 640 64 608 64 WIRE -272 80 -272 -128 WIRE 752 80 752 32 WIRE -80 128 -80 -96 WIRE 0 128 -80 128 WIRE 336 128 336 -48 WIRE 336 128 224 128 WIRE 512 128 512 64 WIRE 512 128 336 128 WIRE 288 160 288 64 WIRE 576 160 288 160 WIRE 704 160 656 160 WIRE -224 192 -224 0 WIRE -144 192 -144 -128 WIRE 0 192 -144 192 WIRE 304 192 224 192 WIRE 512 208 512 128 WIRE -368 368 -368 144 WIRE -272 368 -272 144 WIRE -272 368 -368 368 WIRE -224 368 -224 256 WIRE -224 368 -272 368 WIRE 304 368 304 192 WIRE 304 368 -224 368 WIRE 512 368 512 272 WIRE 512 368 304 368 WIRE 752 368 752 176 WIRE 752 368 512 368 FLAG 752 368 0 FLAG 304 368 0 FLAG -368 368 0 SYMBOL Misc\\NE555 112 96 R180 SYMATTR InstName U1 SYMBOL polcap -240 192 R0 SYMATTR InstName C1 SYMATTR Value 0.47µ SYMATTR Description Capacitor SYMATTR Type cap SYMATTR SpiceLine V=50 Irms=22m Rser=3.9 Lser=0 mfg="Nichicon" pn="UPL1HR47MAH" type="Al electrolytic" SYMBOL polcap 496 208 R0 SYMATTR InstName C2 SYMATTR Value .1µ SYMATTR Description Capacitor SYMATTR Type cap SYMATTR SpiceLine V=50 Irms=22m Rser=3.9 Lser=0 SYMBOL res 544 -16 R180 WINDOW 0 36 76 Left 0 WINDOW 3 36 40 Left 0 SYMATTR InstName R1 SYMATTR Value 500 SYMBOL res 512 80 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R2 SYMATTR Value 800 SYMBOL diode 656 32 R180 WINDOW 0 24 72 Left 0 WINDOW 3 24 0 Left 0 SYMATTR InstName D1 SYMBOL res 400 80 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R3 SYMATTR Value 50 SYMBOL voltage -368 48 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL diode 736 -128 R0 SYMATTR InstName D3 SYMATTR Value 1N4148 SYMBOL nmos 704 80 R0 SYMATTR InstName M1 SYMATTR Value BSS145 SYMBOL res 672 144 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R4 SYMATTR Value 100 SYMBOL load 816 -32 R0 WINDOW 123 0 0 Left 0 WINDOW 39 48 36 Left 0 SYMATTR SpiceLine load SYMATTR InstName I1 SYMATTR Value 2 SYMBOL diode 384 -32 R0 WINDOW 3 -4 -26 Left 0 SYMATTR Value 1N4148 SYMATTR InstName D2 SYMBOL polcap -288 80 R0 WINDOW 3 24 64 Left 0 SYMATTR Value 47µ SYMATTR InstName C3 SYMATTR Description Capacitor SYMATTR Type cap SYMATTR SpiceLine V=25 Irms=210m Rser=0.55 Lser=0 mfg="Nichicon" pn="UPL1E470MPH" type="Al electrolytic" TEXT -512 160 Left 0 !.tran 200u