Version 4 SHEET 1 888 680 WIRE -128 160 -128 112 WIRE -80 160 -128 160 WIRE 48 160 0 160 WIRE 112 160 48 160 WIRE 240 160 192 160 WIRE 288 160 240 160 WIRE 400 160 352 160 WIRE 432 160 400 160 WIRE 544 160 512 160 WIRE 640 160 544 160 WIRE 48 208 48 160 WIRE 400 208 400 160 WIRE 544 208 544 160 WIRE 640 224 640 160 WIRE -288 256 -288 192 WIRE -192 256 -192 192 WIRE 240 256 240 160 WIRE 192 336 176 336 WIRE -288 400 -288 336 WIRE -192 400 -192 336 WIRE 48 400 48 272 WIRE 240 400 240 352 WIRE 400 400 400 272 WIRE 544 400 544 272 WIRE 640 400 640 304 FLAG 240 400 0 FLAG 400 400 0 FLAG 48 400 0 FLAG 176 336 PWM FLAG -192 192 PWM FLAG -288 192 5V FLAG -192 400 0 FLAG -288 400 0 FLAG 640 400 0 FLAG -128 112 5V FLAG 544 400 0 SYMBOL ind 96 176 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 680µ SYMATTR SpiceLine Ipk=0.31 Rser=3.47 Rpar=0 Cpar=0 SYMBOL schottky 288 176 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D1 SYMATTR Value MBRS1100 SYMBOL Misc\\EuropeanPolcap 32 208 R0 SYMATTR InstName C1 SYMATTR Value 47µ SYMATTR SpiceLine V=100 Irms=210m Rser=0.37 Lser=0 mfg="Nichicon" pn="UPR2A470MPH" type="Al electrolytic" SYMBOL Misc\\EuropeanPolcap 384 208 R0 SYMATTR InstName C2 SYMATTR Value 3µ SYMATTR SpiceLine V=100 Irms=160m Rser=0.46 Lser=0 SYMBOL nmos 192 256 R0 SYMATTR InstName M1 SYMATTR Value IRFR120Z SYMBOL voltage -288 240 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 5 SYMBOL voltage -192 240 R0 WINDOW 3 -141 215 Left 2 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR Value PULSE(0 5 0 0 0 14.6u 16u 100000) SYMATTR InstName V2 SYMBOL Misc\\EuropeanResistor 16 144 R90 WINDOW 0 5 56 VBottom 2 WINDOW 3 27 56 VTop 2 SYMATTR InstName R2 SYMATTR Value 0.1 SYMBOL zener 560 272 R180 WINDOW 0 24 64 Left 2 WINDOW 3 -20 -26 Left 2 SYMATTR InstName D2 SYMATTR Value 1N5373B SYMBOL Misc\\EuropeanResistor 528 144 R90 WINDOW 0 5 56 VBottom 2 WINDOW 3 27 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 50 SYMBOL Misc\\EuropeanResistor 624 208 R0 SYMATTR InstName R1 SYMATTR Value 10k TEXT 672 456 Left 2 !.tran 0 20m 0.1m