Version 4 SHEET 1 4692 2996 WIRE 2016 1744 2016 1728 WIRE 2640 1744 2640 1728 WIRE 2496 1760 2496 1728 WIRE 1456 1824 1456 1728 WIRE 2016 1856 2016 1824 WIRE 2272 1856 2016 1856 WIRE 2496 1856 2496 1824 WIRE 2640 1856 2640 1824 WIRE 2640 1856 2496 1856 WIRE 2768 1856 2640 1856 WIRE 2496 1872 2496 1856 WIRE 2016 1888 2016 1856 WIRE 864 1936 864 1728 WIRE 1456 1952 1456 1904 WIRE 1600 1952 1456 1952 WIRE 1824 1952 1600 1952 WIRE 2384 1952 2208 1952 WIRE 2448 1952 2384 1952 WIRE 2384 1968 2384 1952 WIRE 2272 2000 2272 1856 WIRE 1456 2032 1456 1952 WIRE 1600 2048 1600 1952 WIRE 1744 2096 1728 2096 WIRE 1824 2096 1808 2096 WIRE 2496 2096 2496 1968 WIRE 2496 2096 2208 2096 WIRE 2384 2112 2384 2048 WIRE 2496 2112 2496 2096 WIRE 864 2208 864 2016 WIRE 1456 2208 1456 2112 WIRE 1456 2208 864 2208 WIRE 1600 2208 1600 2112 WIRE 1600 2208 1456 2208 WIRE 1728 2208 1728 2096 WIRE 1728 2208 1600 2208 WIRE 2016 2208 2016 2160 WIRE 2016 2208 1728 2208 WIRE 2272 2208 2272 2064 WIRE 2272 2208 2016 2208 WIRE 2384 2208 2384 2176 WIRE 2384 2208 2272 2208 WIRE 2496 2208 2496 2192 WIRE 2496 2208 2384 2208 FLAG 864 2208 IN FLAG 2768 1856 OUT FLAG 864 1728 0 FLAG 1456 1728 0 FLAG 2016 1728 0 FLAG 2496 1728 0 FLAG 2640 1728 0 SYMBOL nmos 2448 1872 R0 WINDOW 0 101 14 Right 2 WINDOW 3 140 76 Right 2 SYMATTR InstName M1 SYMATTR Value IRF530 SYMBOL res 2512 2096 M0 WINDOW 0 -38 37 Left 2 WINDOW 3 -56 78 Left 2 SYMATTR InstName R6 SYMATTR Value 20m SYMBOL res 1440 1808 R0 SYMATTR InstName R4 SYMATTR Value 402K SYMBOL cap 1584 2048 R0 SYMATTR InstName C1 SYMATTR Value 10n SYMBOL res 1440 2016 R0 SYMATTR InstName R7 SYMATTR Value 32.4K SYMBOL voltage 864 2032 M180 WINDOW 3 24 16 Left 2 WINDOW 0 24 96 Left 2 SYMATTR Value PWL(0 0 1m 0 1.001m -48 220m -48 221m -70) SYMATTR InstName V1 SYMBOL cap 2368 2112 R0 SYMATTR InstName C3 SYMATTR Value 18n SYMBOL res 2368 1952 R0 SYMATTR InstName R2 SYMATTR Value 10 SYMBOL res 2624 1728 R0 SYMATTR InstName Rload SYMATTR Value 50 SYMBOL cap 2480 1760 R0 SYMATTR InstName C5 SYMATTR Value 100µ SYMBOL LTC4251 2016 2016 R0 SYMATTR InstName U1 SYMBOL cap 1808 2080 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 150n SYMBOL cap 2256 2000 R0 SYMATTR InstName C4 SYMATTR Value 1µ SYMBOL res 2000 1728 R0 SYMATTR InstName R1 SYMATTR Value 10K TEXT 2632 2176 Left 2 !.tran 400m