Version 4
SHEET 1 1128 724
WIRE 1008 -336 -608 -336
WIRE 16 96 -352 96
WIRE 48 96 16 96
WIRE 176 96 144 96
WIRE 208 96 176 96
WIRE 368 96 336 96
WIRE 480 128 336 128
WIRE -112 160 -144 160
WIRE 48 160 -112 160
WIRE 368 160 368 96
WIRE 368 160 144 160
WIRE -16 208 -144 208
WIRE 48 208 -16 208
WIRE 176 208 176 96
WIRE 176 208 144 208
WIRE 384 208 176 208
WIRE 544 208 480 208
WIRE 576 208 544 208
WIRE -240 272 -272 272
WIRE 16 272 16 96
WIRE 48 272 16 272
WIRE 368 272 368 160
WIRE 368 272 144 272
WIRE 384 272 368 272
WIRE -112 304 -112 160
WIRE -272 320 -272 272
WIRE -160 320 -272 320
WIRE -352 352 -352 96
WIRE -272 352 -272 320
WIRE 544 352 544 208
WIRE -16 368 -16 208
WIRE -352 464 -352 432
WIRE -272 464 -272 432
WIRE -272 464 -352 464
WIRE -160 464 -160 368
WIRE -160 464 -272 464
WIRE -112 464 -112 384
WIRE -112 464 -160 464
WIRE -16 464 -16 432
WIRE -16 464 -112 464
WIRE 480 464 480 272
WIRE 480 464 -16 464
WIRE 544 464 544 432
WIRE 544 464 480 464
WIRE -352 496 -352 464
WIRE -608 720 -608 -336
WIRE 1008 720 1008 -336
WIRE 1008 720 -608 720
FLAG 480 128 BF
IOPIN 480 128 Out
FLAG -352 496 0
FLAG 576 208 VSEC
IOPIN 576 208 Out
FLAG -144 160 VPRI
IOPIN -144 160 Out
FLAG -144 208 VCLMP
IOPIN -144 208 Out
FLAG -240 272 VDRV
IOPIN -240 272 Out
SYMBOL core 256 96 R0
WINDOW 0 -605 -118 Left 0
WINDOW 39 -456 -117 Left 0
SYMATTR InstName CORE
SYMATTR SpiceLine UO=12.57E-7 UE=1500 AE=58E-6 LE=57E-3 BS=300E-3 LG=0
SYMBOL winding 80 128 R0
WINDOW 0 -430 -123 Left 0
WINDOW 39 -280 -124 Left 0
SYMATTR InstName PRIMARY
SYMATTR SpiceLine WA=17E-6 MLT=50E-3 WF=0.7 N=14 F=0
SYMBOL winding 80 240 R0
WINDOW 0 -431 -209 Left 0
WINDOW 39 -280 -210 Left 0
SYMATTR InstName CLAMP
SYMATTR SpiceLine WA=3.4E-6 MLT=50E-3 WF=0.7 N=14 F=0
SYMBOL winding 448 240 M0
WINDOW 0 674 -184 Left 0
WINDOW 39 250 -184 Left 0
SYMATTR InstName SECONDARY
SYMATTR SpiceLine WA=20.5E-6 MLT=50E-3 WF=0.7 N=3 F=0
SYMBOL res 528 336 R0
WINDOW 0 34 51 Left 0
SYMATTR InstName RBURD
SYMATTR Value 2R5
SYMBOL sw -112 400 M180
WINDOW 0 35 71 Left 0
WINDOW 3 34 46 Left 0
SYMATTR InstName M1
SYMATTR Value MSW
SYMBOL voltage -272 336 R0
WINDOW 0 -54 149 Left 0
WINDOW 3 -56 174 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName VDRV
SYMATTR Value PULSE(0 15 0 10n 10n 4u 10u)
SYMBOL diode 0 432 R180
WINDOW 0 -49 42 Left 0
WINDOW 3 -42 20 Left 0
SYMATTR InstName DCL
SYMATTR Value DID
SYMBOL voltage -352 336 R0
WINDOW 0 8 -35 Left 0
WINDOW 3 10 -9 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName VBUS
SYMATTR Value 48V
TEXT 80 128 Left 0 ;PRI
TEXT 72 240 Left 0 ;CLP
TEXT 408 240 Left 0 ;SEC
TEXT 80 488 Left 0 !.MODEL MSW SW(RON=10m ROFF=1E6 VT=5)
TEXT 80 512 Left 0 !.MODEL DID D(RON=10m ROFF=1E6)
TEXT 80 536 Left 0 !.tran 0 100u 70u 100n uic