Version 4
SHEET 1 2740 872
WIRE -304 -176 -352 -176
WIRE -352 -144 -352 -176
WIRE -304 -144 -304 -176
WIRE -480 -80 -512 -80
WIRE -304 -80 -400 -80
WIRE 128 -80 -304 -80
WIRE 352 -80 208 -80
WIRE 384 -80 384 -112
WIRE 384 -80 352 -80
WIRE 496 -80 464 -80
WIRE 592 -80 496 -80
WIRE 720 -80 592 -80
WIRE 768 -80 720 -80
WIRE 784 -80 768 -80
WIRE 384 -48 384 -80
WIRE -480 16 -512 16
WIRE -80 16 -400 16
WIRE -80 80 -80 16
WIRE 352 96 352 -80
WIRE -608 112 -736 112
WIRE -256 112 -608 112
WIRE -240 144 -416 144
WIRE 592 144 592 -80
WIRE -736 160 -736 112
WIRE 160 176 80 176
WIRE 256 176 160 176
WIRE 304 176 256 176
WIRE 160 192 160 176
WIRE -416 208 -416 144
WIRE -400 208 -416 208
WIRE -304 208 -320 208
WIRE -240 208 -304 208
WIRE 768 224 768 -80
WIRE 496 240 496 -80
WIRE -256 272 -256 112
WIRE -240 272 -256 272
WIRE -608 288 -608 112
WIRE 592 288 592 224
WIRE 672 288 592 288
WIRE 128 304 80 304
WIRE 224 304 128 304
WIRE 352 304 352 192
WIRE 352 304 304 304
WIRE -464 336 -544 336
WIRE -352 336 -464 336
WIRE -240 336 -352 336
WIRE 352 336 352 304
WIRE 592 336 592 288
WIRE -352 400 -352 336
WIRE -608 416 -608 384
WIRE -464 416 -464 336
WIRE -80 464 -80 400
WIRE 160 464 160 272
WIRE 352 464 352 416
WIRE 496 464 496 304
WIRE 592 464 592 416
WIRE -352 496 -352 464
WIRE -736 528 -736 240
WIRE -608 528 -608 496
WIRE -608 528 -736 528
WIRE 128 528 128 304
WIRE 128 528 -608 528
WIRE 768 544 768 304
WIRE -416 560 -416 208
WIRE 672 560 672 288
WIRE 672 560 -416 560
WIRE -464 624 -464 496
WIRE 720 624 720 -80
WIRE 720 624 -464 624
FLAG -352 496 0
FLAG -80 464 0
FLAG 784 -80 out
IOPIN 784 -80 Out
FLAG -512 -80 0
FLAG 352 464 0
FLAG 592 464 0
FLAG 496 464 0
FLAG 160 464 0
FLAG -512 16 0
FLAG -352 -144 0
FLAG 256 176 G_Drive
IOPIN 256 176 Out
FLAG 768 544 0
FLAG -304 208 comp
SYMBOL nmos 304 96 R0
SYMATTR InstName M1
SYMATTR Value STP75NF75
SYMATTR Prefix X
SYMBOL ind 112 -64 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 3µ
SYMATTR SpiceLine Rser=0.1
SYMBOL res 576 128 R0
SYMATTR InstName R104
SYMATTR Value 12k
SYMBOL res 576 320 R0
SYMATTR InstName R105
SYMATTR Value 1k
SYMBOL cap 480 240 R0
SYMATTR InstName C5
SYMATTR Value 100µ
SYMBOL PowerProducts\\LT1243 -80 240 R0
SYMATTR InstName U1
SYMBOL res 336 320 R0
SYMATTR InstName R8
SYMATTR Value 10m
SYMBOL res -448 512 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R6
SYMATTR Value 33k
SYMBOL cap -368 400 R0
SYMATTR InstName C4
SYMATTR Value 1n2
SYMBOL voltage -384 -80 M270
WINDOW 0 -19 115 VLeft 2
WINDOW 3 -19 25 VLeft 2
WINDOW 123 0 0 Left 2
WINDOW 39 -47 115 VLeft 2
SYMATTR InstName V1
SYMATTR Value 12.44
SYMATTR SpiceLine Rser=0.1
SYMBOL res 144 176 R0
SYMATTR InstName R4
SYMATTR Value 30k
SYMBOL res 320 288 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 1k
SYMBOL res -752 144 R0
SYMATTR InstName R99
SYMATTR Value 4k7
SYMBOL npn -544 288 M0
SYMATTR InstName Q1
SYMATTR Value BC847C
SYMBOL res -624 400 R0
SYMATTR InstName R7
SYMATTR Value 10k
SYMBOL voltage -384 16 M270
WINDOW 0 -19 115 VLeft 2
WINDOW 3 -19 25 VLeft 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 9
SYMBOL cap -320 -144 R0
SYMATTR InstName C2
SYMATTR Value 1000µ
SYMBOL doubleschottky 448 -112 R270
SYMATTR InstName D1
SYMATTR Value STPS2045CT
SYMATTR Prefix X
SYMBOL res 752 208 R0
SYMATTR InstName R1
SYMATTR Value 15.2
SYMBOL res -304 192 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 100k
TEXT -512 784 Left 2 !.tran 0 5m 0 startup
TEXT -120 288 Left 2 ;UC3843
TEXT -520 712 Left 2 !.inc uc3843a.lib
TEXT -520 680 Left 2 !.options gmin=1e-10 abstol=1e-10 reltol=0.003
TEXT -520 744 Left 2 !.model 1WLED D(Is=2.52144e-017 Rs=0.769946 N=3.33836 Cjo=100p Iave=350m Ipk=500m mfg=Luxeon type=LED)
TEXT -504 856 Left 2 ;Takffrequenz = 400kHz