Version 4
SHEET 1 2712 2116
WIRE 2384 1264 1632 1264
WIRE 1696 1312 1536 1312
WIRE 1824 1312 1696 1312
WIRE 2080 1312 1952 1312
WIRE 2192 1312 2080 1312
WIRE 2384 1312 2384 1264
WIRE 2384 1312 2256 1312
WIRE 1536 1328 1536 1312
WIRE 2080 1344 2080 1312
WIRE 1824 1360 1824 1312
WIRE 1952 1360 1952 1312
WIRE 2192 1376 2160 1376
WIRE 2272 1376 2192 1376
WIRE 2384 1376 2384 1312
WIRE 2384 1376 2352 1376
WIRE 2448 1376 2384 1376
WIRE 2560 1376 2448 1376
WIRE 2192 1392 2192 1376
WIRE 2448 1392 2448 1376
WIRE 2560 1392 2560 1376
WIRE 1632 1408 1632 1264
WIRE 1536 1424 1536 1408
WIRE 1696 1424 1696 1312
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 2192 1472 2192 1456
WIRE 2448 1488 2448 1456
WIRE 2560 1488 2560 1472
WIRE 1632 1504 1632 1488
WIRE 1728 1504 1632 1504
WIRE 2096 1504 2048 1504
WIRE 2384 1504 2384 1376
WIRE 2384 1504 2096 1504
WIRE 2096 1520 2096 1504
WIRE 2384 1536 2384 1504
WIRE 2096 1584 2048 1584
WIRE 1552 1664 1536 1664
WIRE 1648 1664 1632 1664
WIRE 1728 1664 1712 1664
WIRE 2096 1664 2048 1664
WIRE 2384 1664 2384 1616
WIRE 2384 1664 2096 1664
WIRE 2384 1696 2384 1664
WIRE 1600 1744 1568 1744
WIRE 1728 1744 1664 1744
WIRE 2096 1744 2096 1664
WIRE 2096 1744 2048 1744
WIRE 2384 1792 2384 1776
WIRE 1888 1840 1888 1808
FLAG 2192 1472 0
FLAG 2384 1792 0
FLAG 2448 1488 0
FLAG 2560 1488 0
FLAG 1888 1840 0
FLAG 1536 1664 0
FLAG 1536 1424 0
FLAG 1568 1744 0
FLAG 2560 1376 OUT
FLAG 1536 1312 IN
SYMBOL ind 2256 1392 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 33µ
SYMATTR SpiceLine Rpar=2K
SYMBOL cap 1712 1648 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 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 .33µ
SYMBOL schottky 2176 1456 M180
WINDOW 0 36 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value MBRS340
SYMBOL polcap 2432 1392 R0
SYMATTR InstName C3
SYMATTR Value 100µ
SYMATTR SpiceLine Rser=100m
SYMBOL RES 2368 1520 R0
SYMATTR InstName R1
SYMATTR Value 165K
SYMBOL res 2368 1680 R0
SYMATTR InstName R2
SYMATTR Value 100K
SYMBOL diode 2256 1296 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL VOLTAGE 1536 1312 R0
SYMATTR InstName V1
SYMATTR Value 20
SYMBOL cap 2080 1520 R0
SYMATTR InstName C5
SYMATTR Value .01µ
SYMBOL res 1648 1648 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 10K
SYMBOL cap 1664 1728 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C6
SYMATTR Value 1n
SYMBOL RES 1616 1504 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R4
SYMATTR Value 100K
SYMBOL PowerProducts\\LT1976B 1888 1584 R0
SYMATTR InstName U1
SYMBOL res 2544 1376 R0
SYMATTR InstName Rload
SYMATTR Value 5
TEXT 2112 1784 Left 2 !.tran 2.5m startup