Version 4 SHEET 1 2376 1416 WIRE 1520 944 1328 944 WIRE 1552 944 1520 944 WIRE 1664 944 1632 944 WIRE 1712 944 1664 944 WIRE 1824 944 1776 944 WIRE 1936 944 1824 944 WIRE 2048 944 1936 944 WIRE 1328 960 1328 944 WIRE 1936 960 1936 944 WIRE 2048 960 2048 944 WIRE 1824 992 1824 944 WIRE 1520 1008 1520 944 WIRE 1328 1056 1328 1040 WIRE 1936 1056 1936 1024 WIRE 2048 1056 2048 1040 WIRE 1664 1072 1664 944 WIRE 1664 1072 1648 1072 WIRE 1392 1104 1360 1104 WIRE 1824 1136 1824 1072 WIRE 1824 1136 1648 1136 WIRE 1824 1152 1824 1136 WIRE 1520 1248 1520 1200 WIRE 1824 1248 1824 1232 FLAG 2048 944 OUT FLAG 1824 1248 0 FLAG 1936 1056 0 FLAG 2048 1056 0 FLAG 1328 1056 0 FLAG 1520 1248 0 FLAG 1328 944 IN SYMBOL RES 1808 1136 R0 SYMATTR InstName R1 SYMATTR Value 83K SYMBOL RES 1808 976 R0 SYMATTR InstName R2 SYMATTR Value 250K SYMBOL VOLTAGE 1328 944 R0 SYMATTR InstName V1 SYMATTR Value 3 SYMATTR SpiceLine Rser=0.1 SYMBOL POLCAP 1920 960 R0 SYMATTR InstName C1 SYMATTR Value 22µ SYMATTR SpiceLine Rser=0.02 SYMBOL schottky 1712 960 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName D1 SYMATTR Value MBRS140 SYMBOL IND 1536 960 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 5 56 VBottom 0 SYMATTR InstName L1 SYMATTR Value 33µ SYMATTR SpiceLine Rser=0.02 Rpar=5000 SYMBOL POWERPRODUCTS\\LT1109 1520 1088 R0 SYMATTR InstName U1 SYMBOL res 2032 944 R0 SYMATTR InstName Rload SYMATTR Value 50 TEXT 1584 1296 Left 0 !.tran 1.5m startup