Version 4
SHEET 1 1356 2912
WIRE 128 -32 -48 -32
WIRE 320 -32 208 -32
WIRE 320 16 320 -32
WIRE -48 64 -48 -32
WIRE 240 64 112 64
WIRE 400 64 336 64
WIRE 464 64 400 64
WIRE 608 64 544 64
WIRE 736 64 608 64
WIRE 112 112 112 64
WIRE 608 128 608 64
WIRE 736 128 736 64
WIRE 400 144 400 64
WIRE -48 256 -48 144
WIRE 112 256 112 192
WIRE 112 256 -48 256
WIRE 400 256 400 208
WIRE 400 256 112 256
WIRE 608 256 608 192
WIRE 608 256 400 256
WIRE 736 256 736 208
WIRE 736 256 608 256
WIRE 112 288 112 256
FLAG 112 288 0
SYMBOL voltage 112 96 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 124 Left 2
SYMATTR SpiceLine Rser=0
SYMATTR InstName V1
SYMATTR Value 48
SYMBOL nmos 240 16 M90
SYMATTR InstName M1
SYMATTR Value IRF1407
SYMBOL schottky 416 208 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value MBR20100CT
SYMBOL ind 448 80 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 25µ
SYMATTR SpiceLine Ipk=0 Rser=0 Rpar=0 Cpar=0
SYMBOL polcap 592 128 R0
WINDOW 3 24 56 Left 2
SYMATTR Value 470µ
SYMATTR InstName C1
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=63 Irms=1.78 Rser=0.065 Lser=0 mfg="Panasonic" pn="ECA1JFQ471L" type="Al electrolytic"
SYMBOL voltage -48 48 R0
WINDOW 3 24 96 Invisible 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value PULSE(0 58 0.001 0 0 0.00001 0.000017 600)
SYMATTR InstName V2_PWM
SYMBOL Misc\\EuropeanResistor 720 112 R0
SYMATTR InstName R2
SYMATTR Value 3
SYMBOL Misc\\EuropeanResistor 112 -16 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 2K
SYMATTR SpiceLine tol=1 pwr=0.1
TEXT 608 344 Left 2 !.tran 0.012