Version 4 SHEET 1 3844 680 WIRE 2480 -384 2016 -384 WIRE 2624 -384 2560 -384 WIRE 2688 -384 2624 -384 WIRE 2864 -384 2768 -384 WIRE 2624 -352 2624 -384 WIRE 2624 -256 2624 -288 WIRE 144 -160 32 -160 WIRE 240 -160 144 -160 WIRE 464 -160 240 -160 WIRE 768 -160 464 -160 WIRE 992 -160 944 -160 WIRE 1232 -160 1072 -160 WIRE 1360 -160 1232 -160 WIRE 1424 -160 1360 -160 WIRE 1552 -160 1488 -160 WIRE 1696 -160 1552 -160 WIRE 1760 -160 1696 -160 WIRE 1872 -160 1824 -160 WIRE 2016 -160 2016 -384 WIRE 2016 -160 1872 -160 WIRE 2080 -160 2016 -160 WIRE 2192 -160 2144 -160 WIRE 2400 -160 2192 -160 WIRE 2496 -160 2400 -160 WIRE 2624 -160 2576 -160 WIRE 2720 -160 2624 -160 WIRE 2896 -160 2800 -160 WIRE 2992 -160 2896 -160 WIRE 3232 -160 3072 -160 WIRE 768 -144 768 -160 WIRE 944 -144 944 -160 WIRE 1072 -144 1072 -160 WIRE 1232 -112 1232 -160 WIRE 1360 -112 1360 -160 WIRE 1552 -112 1552 -160 WIRE 1696 -112 1696 -160 WIRE 1872 -112 1872 -160 WIRE 2016 -112 2016 -160 WIRE 2192 -112 2192 -160 WIRE 2400 -112 2400 -160 WIRE 2624 -112 2624 -160 WIRE 464 -96 464 -160 WIRE 2896 -96 2896 -160 WIRE 3232 -96 3232 -160 WIRE 144 -80 144 -160 WIRE 3424 -80 3280 -80 WIRE 1072 -48 1072 -80 WIRE 240 -32 240 -160 WIRE 320 -32 240 -32 WIRE 768 -32 768 -64 WIRE 768 -32 608 -32 WIRE 3312 -32 3280 -32 WIRE 3424 -16 3424 -80 WIRE 768 16 768 -32 WIRE 32 32 32 -160 WIRE 992 32 992 -160 WIRE 1232 32 1232 -48 WIRE 1232 32 992 32 WIRE 1264 32 1232 32 WIRE 1360 32 1360 -48 WIRE 1360 32 1328 32 WIRE 1552 32 1552 -48 WIRE 1552 32 1360 32 WIRE 1600 32 1552 32 WIRE 1696 32 1696 -48 WIRE 1696 32 1664 32 WIRE 1872 32 1872 -48 WIRE 1872 32 1696 32 WIRE 1920 32 1872 32 WIRE 2016 32 2016 -48 WIRE 2016 32 1984 32 WIRE 2192 32 2192 -48 WIRE 2192 32 2016 32 WIRE 672 48 608 48 WIRE 2896 80 2896 -32 WIRE 672 160 672 48 WIRE 2400 160 2400 -32 WIRE 2400 160 672 160 WIRE 2624 160 2624 -48 WIRE 3232 160 3232 -16 WIRE 3312 160 3312 -32 WIRE 3424 160 3424 64 WIRE 672 192 672 160 WIRE 32 304 32 112 WIRE 144 304 144 -16 WIRE 464 304 464 192 WIRE 672 304 672 272 WIRE 768 304 768 80 WIRE 944 304 944 -64 FLAG 464 304 0 FLAG 32 304 0 FLAG 944 304 0 FLAG 768 304 0 FLAG 1072 -48 0 FLAG 672 304 0 FLAG 2624 160 0 FLAG 144 304 0 FLAG 3232 160 0 FLAG 3312 160 0 FLAG 3424 160 0 FLAG 2624 -256 0 SYMBOL voltage 32 16 R0 WINDOW 123 0 0 Left 2 WINDOW 39 24 124 Left 2 SYMATTR InstName V1 SYMATTR Value 3.1 SYMATTR SpiceLine Rser=10m SYMBOL PowerProducts\\LT1304 464 48 R0 SYMATTR InstName U1 SYMBOL cap 128 -80 R0 SYMATTR InstName C1 SYMATTR Value 68µ SYMBOL ind2 752 -160 R0 SYMATTR InstName L1 SYMATTR Value 7µ SYMATTR Type ind SYMATTR SpiceLine Ipk=0.7 Rser=0.5 SYMBOL ind2 960 -48 R180 WINDOW 0 36 80 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName L2 SYMATTR Value 728µ SYMATTR Type ind SYMATTR SpiceLine Rser=60 SYMBOL schottky 784 80 R180 WINDOW 0 24 64 Left 2 WINDOW 3 -7 8 Right 2 SYMATTR InstName D1 SYMATTR Value MBR0520L SYMATTR Description Diode SYMATTR Type diode SYMBOL cap 1056 -144 R0 SYMATTR InstName C2 SYMATTR Value 10n SYMBOL diode 1248 -48 R180 WINDOW 0 24 64 Left 2 WINDOW 3 50 25 VLeft 2 SYMATTR InstName D2 SYMATTR Value MUR460 SYMBOL cap 1328 16 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value 10n SYMBOL diode 1344 -112 R0 WINDOW 3 54 135 VLeft 2 SYMATTR InstName D3 SYMATTR Value MUR460 SYMBOL cap 1488 -176 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value 10n SYMBOL diode 1568 -48 R180 WINDOW 0 24 64 Left 2 WINDOW 3 49 25 VLeft 2 SYMATTR InstName D4 SYMATTR Value MUR460 SYMBOL cap 1664 16 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C5 SYMATTR Value 10n SYMBOL diode 1680 -112 R0 WINDOW 3 51 134 VLeft 2 SYMATTR InstName D5 SYMATTR Value MUR460 SYMBOL cap 1824 -176 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C6 SYMATTR Value 10n SYMBOL diode 1888 -48 R180 WINDOW 0 24 64 Left 2 WINDOW 3 50 27 VLeft 2 SYMATTR InstName D6 SYMATTR Value MUR460 SYMBOL res 2384 -128 R0 WINDOW 3 55 173 VLeft 2 SYMATTR InstName R1 SYMATTR Value 250MEG SYMBOL res 656 176 R0 SYMATTR InstName R2 SYMATTR Value 560k SYMBOL res 2592 -176 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 2.21MEG SYMBOL cap 2608 -112 R0 SYMATTR InstName C7 SYMATTR Value 1n SYMBOL res 2816 -176 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 1MEG SYMBOL cap 2880 -96 R0 SYMATTR InstName C8 SYMATTR Value 50p SYMBOL res 3088 -176 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R5 SYMATTR Value 10MEG SYMBOL sw 3232 0 R180 SYMATTR InstName S1 SYMBOL voltage 3424 -32 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value PULSE(0 1 10m 0 0 3u 2m) SYMBOL cap 1984 16 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C9 SYMATTR Value 10n SYMBOL diode 2000 -112 R0 WINDOW 3 51 134 VLeft 2 SYMATTR InstName D7 SYMATTR Value MUR460 SYMBOL cap 2144 -176 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C10 SYMATTR Value 10n SYMBOL diode 2208 -48 R180 WINDOW 0 24 64 Left 2 WINDOW 3 50 27 VLeft 2 SYMATTR InstName D8 SYMATTR Value MUR460 SYMBOL res 2576 -400 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R6 SYMATTR Value 2.21MEG SYMBOL res 2784 -400 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R7 SYMATTR Value 1MEG SYMBOL cap 2608 -352 R0 SYMATTR InstName C11 SYMATTR Value 1n TEXT 752 -240 Left 2 ;TDK ATB3225 10.2 TEXT 784 -200 Left 2 !K L1 L2 0.98 TEXT -2 328 Left 2 !.tran 50m TEXT 3256 -144 Left 2 !.model SW SW(Ron=1u Roff= 1000Meg Vt=.5 Vh=-.4)