Version 4
SHEET 1 880 680
WIRE 192 32 -64 32
WIRE 288 32 192 32
WIRE 336 32 288 32
WIRE 672 32 432 32
WIRE 288 48 288 32
WIRE 336 48 336 32
WIRE 432 48 432 32
WIRE 672 64 672 32
WIRE -64 80 -64 32
WIRE 192 128 192 112
WIRE 288 128 288 112
WIRE 288 128 192 128
WIRE 336 128 288 128
WIRE 432 144 432 128
WIRE 672 144 672 128
WIRE 672 144 432 144
WIRE 432 160 432 144
WIRE -64 192 -64 160
WIRE 192 192 192 128
WIRE 192 192 -64 192
WIRE -64 224 -64 192
FLAG -64 224 0
FLAG 432 160 0
SYMBOL Misc\\signal -64 64 R0
WINDOW 3 24 160 Left 2
WINDOW 123 24 132 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PULSE(0 400 0 1n 1n 100µ 200µ)
SYMATTR Value2 AC 20V 0
SYMBOL res 176 16 R0
SYMATTR InstName R1
SYMATTR Value 2000R
SYMBOL ind2 320 32 R0
SYMATTR InstName L1
SYMATTR Value 250µ
SYMATTR Type ind
SYMATTR SpiceLine Ipk=0.21 Rser=1.39 Rpar=942 Cpar=0
SYMBOL ind2 416 32 R0
SYMATTR InstName L2
SYMATTR Value 10µ
SYMATTR Type ind
SYMATTR SpiceLine Ipk=0.21 Rser=1.39 Rpar=942 Cpar=0 mfg="Coilcraft" pn="0603PS-103K"
SYMBOL schottky 304 112 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value MBR20100CT
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL schottky 688 128 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value MBR20100CT
SYMATTR Description Diode
SYMATTR Type diode
TEXT 62 236 Left 2 !.tran 20m startup
TEXT 344 0 Left 2 !K1 L1 L2 1