Version 4
SHEET 1 1396 712
WIRE 528 336 560 336
WIRE 208 448 208 480
WIRE 560 544 560 576
WIRE 560 576 208 576
WIRE 208 576 208 544
WIRE -32 208 -16 208
WIRE 80 208 240 208
WIRE -80 544 -80 576
WIRE -80 576 128 576
WIRE -112 576 -112 592
WIRE -16 448 -48 448
WIRE -80 448 -80 464
WIRE 64 448 128 448
WIRE 128 480 128 448
WIRE 128 544 128 576
WIRE 128 576 208 576
WIRE -368 576 -224 576
WIRE 48 -32 128 -32
WIRE 832 -32 832 16
WIRE 832 96 832 144
WIRE 832 400 832 576
WIRE 832 576 976 576
WIRE 976 -32 832 -32
WIRE 832 320 832 272
WIRE 720 144 736 144
WIRE 832 144 832 208
WIRE 704 208 624 208
WIRE 624 208 624 144
WIRE 768 208 832 208
WIRE 624 144 640 144
WIRE -80 224 -80 448
WIRE -80 128 -80 -32
WIRE -80 -32 -48 -32
WIRE -112 -32 -80 -32
WIRE 976 224 976 -32
WIRE 976 -32 992 -32
WIRE 976 304 976 576
WIRE -224 -32 -192 -32
WIRE -384 -32 -368 -32
WIRE -368 -32 -368 144
WIRE -368 224 -368 576
WIRE -224 240 -224 80
WIRE -224 -32 -368 -32
WIRE -224 304 -224 576
WIRE -224 576 -112 576
WIRE 48 144 272 144
WIRE 272 272 240 272
WIRE 128 272 128 448
WIRE 832 272 528 272
WIRE 208 448 208 336
WIRE 208 336 240 336
WIRE 528 208 624 208
WIRE 560 336 560 448
WIRE 496 144 544 144
WIRE 272 448 208 448
WIRE 560 448 352 448
WIRE 560 448 560 480
WIRE -224 80 -224 -32
WIRE 48 144 48 80
WIRE 48 80 -224 80
WIRE 832 576 560 576
WIRE 832 208 832 272
WIRE 816 144 832 144
WIRE -112 576 -80 576
WIRE 128 -32 128 0
WIRE 128 64 128 96
WIRE 128 -32 832 -32
WIRE -48 -32 -16 -32
WIRE -48 448 -80 448
WIRE -16 208 0 208
WIRE 240 272 128 272
WIRE 736 144 752 144
WIRE 240 336 272 336
WIRE 240 208 272 208
WIRE 496 336 528 336
WIRE 496 272 528 272
WIRE 496 208 528 208
FLAG -112 592 0
FLAG 992 -32 Vout
IOPIN 992 -32 Out
FLAG -384 -32 Vin
IOPIN -384 -32 In
FLAG 544 144 0
FLAG 128 96 0
FLAG -48 -32 D
FLAG -48 448 S
FLAG -16 208 G
FLAG 240 272 Ifb
FLAG 240 336 osc
FLAG 528 272 Vfb
FLAG 528 336 ref
FLAG 528 208 err
FLAG 736 144 x
FLAG 240 208 out
SYMBOL voltage -368 128 R0
WINDOW 123 32 56 VTop 0
WINDOW 39 16 96 Left 0
WINDOW 3 48 64 Left 0
WINDOW 0 48 32 Left 0
SYMATTR SpiceLine Rser=10m
SYMATTR Value 15
SYMATTR InstName V1
SYMBOL res 368 432 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R1
SYMATTR Value 4k
SYMBOL cap 192 480 R0
SYMATTR InstName C1
SYMATTR Value 2n2
SYMBOL cap 544 480 R0
SYMATTR InstName C2
SYMATTR Value .1µ
SYMBOL res -16 224 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R2
SYMATTR Value 100
SYMBOL res -96 448 R0
SYMATTR InstName R3
SYMATTR Value .25
SYMBOL res -32 464 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL cap 144 480 M0
SYMATTR InstName C3
SYMATTR Value 220p
SYMBOL diode -16 -16 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName D1
SYMATTR Value 1N5819
SYMBOL res 816 0 R0
SYMATTR InstName R7
SYMATTR Value 20k
SYMBOL res 816 304 R0
SYMATTR InstName R8
SYMATTR Value 2k49
SYMBOL cap 112 0 R0
SYMATTR InstName C5
SYMATTR Value 560µ
SYMATTR SpiceLine V=35 Irms=1.4 Rser=0.042 MTBF=2000 Lser=0 mfg="Panasonic" pn="ECA1VFQ561" type="Al electrolytic" ppPkg=1
SYMBOL res 624 160 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R10
SYMATTR Value 150k
SYMBOL cap 752 128 M90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C4
SYMATTR Value 1n
SYMBOL cap 704 192 M90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C6
SYMATTR Value 100p
SYMBOL nmos -32 128 M0
SYMATTR InstName M1
SYMATTR Value FDS6680A
SYMBOL ind -208 -16 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L1
SYMATTR Value 50µ
SYMATTR SpiceLine Ipk=7 Rser=0.02 Rpar=38000 Cpar=5.86p mfg="Gowanda" pn="894AT5002V"
SYMBOL res 960 208 R0
SYMATTR InstName R5
SYMATTR Value 15
SYMBOL polcap -240 240 R0
WINDOW 3 24 64 Left 0
SYMATTR Value 220µ
SYMATTR InstName C7
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=25 Irms=575m Rser=0.12 MTBF=1000 Lser=0 mfg="Panasonic" pn="ECA1EFQ221L" type="Al electrolytic" ppPkg=1
SYMBOL C:\\WINDOWS\\Desktop\\LTspice\ UC3845B\ Boost\\UC3845A 384 240 M0
SYMATTR InstName X1
TEXT -368 -96 Left 0 !.tran 0 4m 10n 1u uic
TEXT -368 -128 Left 0 !.options Trtol=9 Method=trapmod
TEXT 80 -128 Left 0 !.save V(Vout) V(err) I(L1)
RECTANGLE Normal 1104 640 -480 -160