Version 4 SHEET 1 2712 2116 WIRE 2432 1264 1632 1264 WIRE 2080 1312 1952 1312 WIRE 2176 1312 2080 1312 WIRE 2432 1312 2432 1264 WIRE 2432 1312 2240 1312 WIRE 1696 1344 1520 1344 WIRE 1824 1344 1696 1344 WIRE 2080 1344 2080 1312 WIRE 1520 1360 1520 1344 WIRE 1824 1360 1824 1344 WIRE 1952 1360 1952 1312 WIRE 2224 1376 2160 1376 WIRE 2320 1376 2224 1376 WIRE 2432 1376 2432 1312 WIRE 2432 1376 2400 1376 WIRE 2496 1376 2432 1376 WIRE 2608 1376 2496 1376 WIRE 2224 1392 2224 1376 WIRE 2496 1392 2496 1376 WIRE 2608 1392 2608 1376 WIRE 1632 1408 1632 1264 WIRE 1696 1424 1696 1344 WIRE 1728 1424 1696 1424 WIRE 2080 1424 2080 1408 WIRE 2080 1424 2048 1424 WIRE 2160 1424 2160 1376 WIRE 2160 1424 2080 1424 WIRE 1520 1456 1520 1440 WIRE 2224 1472 2224 1456 WIRE 2496 1488 2496 1456 WIRE 2608 1488 2608 1472 WIRE 1632 1504 1632 1488 WIRE 1728 1504 1632 1504 WIRE 2096 1504 2048 1504 WIRE 2272 1504 2096 1504 WIRE 2432 1504 2432 1376 WIRE 2432 1504 2272 1504 WIRE 2096 1520 2096 1504 WIRE 2432 1536 2432 1504 WIRE 2272 1552 2272 1504 WIRE 2096 1584 2048 1584 WIRE 1440 1664 1392 1664 WIRE 1536 1664 1520 1664 WIRE 1728 1664 1536 1664 WIRE 2096 1664 2048 1664 WIRE 2272 1664 2272 1616 WIRE 2272 1664 2096 1664 WIRE 2432 1664 2432 1616 WIRE 2432 1664 2272 1664 WIRE 1392 1680 1392 1664 WIRE 1536 1680 1536 1664 WIRE 2432 1680 2432 1664 WIRE 1648 1744 1632 1744 WIRE 1728 1744 1712 1744 WIRE 2096 1744 2096 1664 WIRE 2096 1744 2048 1744 WIRE 1392 1760 1392 1744 WIRE 1536 1760 1536 1744 WIRE 2432 1776 2432 1760 WIRE 1888 1824 1888 1808 FLAG 2224 1472 0 FLAG 2432 1776 0 FLAG 2496 1488 0 FLAG 2608 1488 0 FLAG 1888 1824 0 FLAG 1392 1760 0 FLAG 1520 1456 0 FLAG 1536 1760 0 FLAG 1632 1744 0 FLAG 2608 1376 OUT FLAG 1520 1344 IN SYMBOL ind 2304 1392 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 33µ SYMBOL cap 1376 1744 M180 WINDOW 0 24 64 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C1 SYMATTR Value .01µ SYMBOL cap 2064 1408 M180 WINDOW 0 24 64 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C2 SYMATTR Value .68µ SYMBOL schottky 2208 1456 M180 WINDOW 0 36 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D1 SYMATTR Value MBRS340 SYMBOL polcap 2480 1392 R0 SYMATTR InstName C3 SYMATTR Value 200µ SYMATTR SpiceLine Rser=50m SYMBOL RES 2416 1520 R0 SYMATTR InstName R1 SYMATTR Value 165K SYMBOL res 2416 1664 R0 SYMATTR InstName R2 SYMATTR Value 100K SYMBOL diode 2240 1296 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName D2 SYMATTR Value 1N4148 SYMBOL VOLTAGE 1520 1344 R0 SYMATTR InstName V1 SYMATTR Value 24 SYMBOL cap 2080 1520 R0 SYMATTR InstName C5 SYMATTR Value .1µ SYMBOL cap 1520 1680 R0 SYMATTR InstName C6 SYMATTR Value 470p SYMBOL res 1536 1648 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 1K SYMBOL cap 1712 1728 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C7 SYMATTR Value 1000p SYMBOL RES 1616 1504 M180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R4 SYMATTR Value 100K SYMBOL cap 2256 1552 R0 SYMATTR InstName C8 SYMATTR Value 27p SYMBOL PowerProducts\\LT3434 1888 1584 R0 SYMATTR InstName U1 SYMBOL res 2592 1376 R0 SYMATTR InstName Rload SYMATTR Value 2 TEXT 2200 1816 Left 2 !.tran 2m startup