Version 4 SHEET 1 1908 804 WIRE 1056 -288 768 -288 WIRE 1184 -288 1056 -288 WIRE 768 -272 768 -288 WIRE 1056 -272 1056 -288 WIRE 1184 -272 1184 -288 WIRE 1360 -208 1312 -208 WIRE 1440 -208 1360 -208 WIRE 1552 -208 1504 -208 WIRE 1360 -192 1360 -208 WIRE 768 -176 768 -192 WIRE 928 -112 896 -112 WIRE 1360 -112 1360 -128 WIRE 1360 -112 1312 -112 WIRE 1360 -16 1312 -16 WIRE 1424 -16 1360 -16 WIRE 1552 -16 1552 -208 WIRE 1552 -16 1504 -16 WIRE 1664 -16 1552 -16 WIRE 1760 -16 1664 -16 WIRE 1360 0 1360 -16 WIRE 1664 0 1664 -16 WIRE 1760 0 1760 -16 WIRE 1552 48 1552 -16 WIRE 1552 48 1504 48 WIRE 1552 64 1552 48 WIRE 1360 80 1360 64 WIRE 1360 80 1312 80 WIRE 1664 96 1664 64 WIRE 1760 96 1760 80 WIRE 1552 176 1552 144 WIRE 1552 176 1312 176 WIRE 1552 192 1552 176 WIRE 1344 272 1312 272 WIRE 1504 272 1504 48 WIRE 1504 272 1344 272 WIRE 1552 288 1552 272 WIRE 832 368 816 368 WIRE 928 368 896 368 WIRE 1344 368 1344 272 WIRE 1344 368 1312 368 WIRE 832 464 816 464 WIRE 928 464 896 464 WIRE 1360 464 1312 464 WIRE 1488 464 1440 464 WIRE 1616 464 1488 464 WIRE 1712 464 1616 464 WIRE 1616 480 1616 464 WIRE 1712 480 1712 464 WIRE 832 560 816 560 WIRE 928 560 912 560 WIRE 1488 560 1488 544 WIRE 1488 560 1312 560 WIRE 1488 576 1488 560 WIRE 1616 576 1616 544 WIRE 1712 576 1712 560 WIRE 1024 640 1024 624 WIRE 1216 640 1216 624 WIRE 1120 656 1120 624 WIRE 1488 672 1488 656 WIRE 1024 720 1024 704 WIRE 1216 720 1216 704 FLAG 1120 656 0 FLAG 1024 720 0 FLAG 1216 720 0 FLAG 768 -176 0 FLAG 896 -112 0 FLAG 816 560 0 FLAG 816 464 0 FLAG 816 368 0 FLAG 1552 288 0 FLAG 1664 96 0 FLAG 1760 96 0 FLAG 1760 -16 OUT1 FLAG 1488 672 0 FLAG 1616 576 0 FLAG 1712 576 0 FLAG 1712 464 OUT2 FLAG 768 -288 IN SYMBOL PowerProducts\\LT3640 1120 176 R0 SYMATTR InstName U1 SYMBOL cap 1008 640 R0 SYMATTR InstName C1 SYMATTR Value .001µ SYMBOL voltage 768 -288 R0 SYMATTR InstName V1 SYMATTR Value 24 SYMBOL res 928 544 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 32.4K SYMBOL cap 896 448 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value 15p SYMBOL cap 896 352 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value 15p SYMBOL zener 1344 64 M180 WINDOW 0 26 66 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D1 SYMATTR Value 1N5371B SYMATTR Description Diode SYMATTR Type diode SYMBOL ind 1408 0 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 3.3µ SYMATTR SpiceLine Rser=5m SYMBOL res 1536 48 R0 SYMATTR InstName R2 SYMATTR Value 80.6K SYMBOL res 1536 176 R0 SYMATTR InstName R3 SYMATTR Value 49.9K SYMBOL cap 1648 0 R0 SYMATTR InstName C5 SYMATTR Value 22µ SYMATTR SpiceLine Rser=5m SYMBOL res 1744 -16 R0 SYMATTR InstName Rload1 SYMATTR Value 4 SYMBOL cap 1344 -192 R0 SYMATTR InstName C6 SYMATTR Value .22µ SYMBOL schottky 1504 -224 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName D2 SYMATTR Value CMDSH2-3 SYMATTR Description Diode SYMATTR Type diode SYMBOL ind 1344 480 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L2 SYMATTR Value 3.3µ SYMATTR SpiceLine Rser=5m SYMBOL res 1472 448 R0 SYMATTR InstName R4 SYMATTR Value 100K SYMBOL res 1472 560 R0 SYMATTR InstName R5 SYMATTR Value 49.9K SYMBOL cap 1600 480 R0 SYMATTR InstName C7 SYMATTR Value 22µ SYMATTR SpiceLine Rser=5m SYMBOL res 1696 464 R0 SYMATTR InstName Rload2 SYMATTR Value 2.25 SYMBOL cap 1200 640 R0 SYMATTR InstName C2 SYMATTR Value .001µ TEXT 1656 664 Left 2 !.tran 1.2m startup