Version 4
SHEET 1 1332 680
WIRE 400 -48 176 -48
WIRE 432 -48 400 -48
WIRE 672 -48 432 -48
WIRE 704 -32 608 -32
WIRE 800 -32 768 -32
WIRE -48 -16 -176 -16
WIRE 352 -16 -48 -16
WIRE 400 0 400 -48
WIRE 176 16 176 -48
WIRE 608 64 608 -32
WIRE 704 64 608 64
WIRE 800 64 800 -32
WIRE 800 64 784 64
WIRE 352 96 352 -16
WIRE 352 96 304 96
WIRE 400 96 400 64
WIRE 400 96 352 96
WIRE 672 128 672 -48
WIRE 800 144 800 64
WIRE 800 144 704 144
WIRE 320 160 304 160
WIRE 496 160 320 160
WIRE 512 160 496 160
WIRE 608 160 608 64
WIRE 608 160 592 160
WIRE 640 160 608 160
WIRE -176 176 -176 -16
WIRE -48 176 -48 -16
WIRE 720 176 704 176
WIRE 336 224 304 224
WIRE 352 224 336 224
WIRE 800 224 800 144
WIRE 672 256 672 192
WIRE 720 256 720 176
WIRE 720 256 672 256
WIRE 352 288 352 224
WIRE 432 288 432 -48
WIRE 496 288 496 160
WIRE 176 384 176 304
WIRE 352 384 352 352
WIRE 352 384 176 384
WIRE 432 384 432 352
WIRE 432 384 352 384
WIRE 496 384 496 352
WIRE 496 384 432 384
WIRE 672 384 672 256
WIRE 672 384 496 384
WIRE 688 384 672 384
WIRE 800 384 800 304
WIRE 800 384 768 384
WIRE 832 384 800 384
WIRE 960 384 912 384
WIRE 1008 384 960 384
WIRE 1152 384 1088 384
WIRE 352 416 352 384
WIRE 960 416 960 384
WIRE 1152 416 1152 384
WIRE -176 528 -176 256
WIRE -48 528 -48 240
WIRE -48 528 -176 528
WIRE 352 528 352 480
WIRE 352 528 -48 528
WIRE 960 528 960 480
WIRE 960 528 352 528
WIRE 1152 528 1152 496
WIRE 1152 528 960 528
WIRE -176 576 -176 528
FLAG -176 576 0
FLAG 320 160 FB
FLAG 336 224 VC
SYMBOL PowerProducts\\LT1171 176 160 R0
SYMATTR InstName U1
SYMBOL res 608 144 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res 800 48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 25k
SYMBOL res 816 320 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL res 784 368 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value .05
SYMBOL cap 416 288 R0
SYMATTR InstName C2
SYMATTR Value 2.2µF
SYMATTR SpiceLine Rser=.05
SYMBOL cap -64 176 R0
SYMATTR InstName C1
SYMATTR Value 220µF
SYMATTR SpiceLine Rser=.05
SYMBOL voltage -176 160 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL schottky 416 64 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value 1N5819
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL schottky 368 480 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value MBRS340
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 336 288 R0
SYMATTR InstName C3
SYMATTR Value .47µF
SYMATTR SpiceLine Rser=.05
SYMBOL cap 480 288 R0
SYMATTR InstName C4
SYMATTR Value 10n
SYMBOL ind 816 400 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 100µH
SYMATTR SpiceLine Rser=.01
SYMBOL ind 992 400 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L2
SYMATTR Value 10µ
SYMATTR SpiceLine Rser=.001
SYMBOL cap 944 416 R0
SYMATTR InstName C5
SYMATTR Value 220µF
SYMATTR SpiceLine Rser=.05
SYMBOL Misc\\battery 1152 400 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 4
SYMBOL cap 704 -16 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C7
SYMATTR Value 1n
SYMBOL Opamps\\LT1678 672 160 M0
SYMATTR InstName U2
TEXT -192 -152 Left 2 !.tran 0 1 0 1u
TEXT -184 -112 Left 2 !.options gmin=1e-10 abstol=1e-10 reltol=0.003