Version 4 SHEET 1 3980 2648 WIRE 2064 1600 1600 1600 WIRE 3136 1600 2064 1600 WIRE 3568 1600 3136 1600 WIRE 3792 1600 3568 1600 WIRE 3904 1600 3792 1600 WIRE 3568 1632 3568 1600 WIRE 1600 1648 1600 1600 WIRE 1600 1760 1600 1728 WIRE 1680 1760 1600 1760 WIRE 2064 1760 2064 1600 WIRE 3136 1760 3136 1600 WIRE 3568 1760 3568 1712 WIRE 3568 1760 3488 1760 WIRE 2016 1776 1744 1776 WIRE 3424 1776 3184 1776 WIRE 1680 1792 1600 1792 WIRE 3568 1792 3488 1792 WIRE 1600 1808 1600 1792 WIRE 3568 1824 3568 1792 WIRE 1600 1920 1600 1888 WIRE 2064 1920 2064 1856 WIRE 2064 1920 1600 1920 WIRE 3136 1920 3136 1856 WIRE 3568 1920 3568 1904 WIRE 3568 1920 3136 1920 WIRE 3792 1984 3792 1600 WIRE 2064 2032 2064 1920 WIRE 2064 2032 1600 2032 WIRE 2464 2032 2064 2032 WIRE 2560 2032 2464 2032 WIRE 2720 2032 2640 2032 WIRE 3136 2032 3136 1920 WIRE 3136 2032 2720 2032 WIRE 3568 2032 3136 2032 WIRE 1600 2048 1600 2032 WIRE 3568 2048 3568 2032 WIRE 2064 2080 2064 2032 WIRE 3136 2080 3136 2032 WIRE 1600 2144 1600 2128 WIRE 1680 2144 1600 2144 WIRE 3568 2144 3568 2128 WIRE 3568 2144 3488 2144 WIRE 2016 2160 1744 2160 WIRE 3424 2160 3184 2160 WIRE 1680 2176 1600 2176 WIRE 3568 2176 3488 2176 WIRE 1600 2224 1600 2176 WIRE 3568 2224 3568 2176 WIRE 1600 2352 1600 2304 WIRE 2064 2352 2064 2176 WIRE 2064 2352 1600 2352 WIRE 3136 2352 3136 2176 WIRE 3136 2352 2064 2352 WIRE 3568 2352 3568 2304 WIRE 3568 2352 3136 2352 WIRE 3792 2352 3792 2064 WIRE 3792 2352 3568 2352 WIRE 3904 2352 3904 2064 WIRE 3904 2352 3792 2352 WIRE 3792 2384 3792 2352 FLAG 3792 2384 0 FLAG 3904 1600 V+ FLAG 1712 1808 V+ FLAG 3456 2128 V+ FLAG 3904 2352 V- FLAG 1712 2192 V- FLAG 3456 2192 V- FLAG 1712 1744 V- FLAG 1712 2128 V+ FLAG 3456 1808 V+ FLAG 3456 1744 V- FLAG 2464 2032 V0+ FLAG 2720 2032 V0- SYMBOL pmos 2016 1856 M180 SYMATTR InstName M1 SYMATTR Value Si5515_P SYMBOL pmos 3184 1856 R180 SYMATTR InstName M2 SYMATTR Value Si5515_P SYMBOL res 3776 1968 R0 SYMATTR InstName R7 SYMATTR Value 200 SYMBOL nmos 2016 2080 R0 SYMATTR InstName M3 SYMATTR Value Si7218DN SYMBOL nmos 3184 2080 M0 SYMATTR InstName M4 SYMATTR Value Si7218DN SYMBOL Comparators\\LTC1441 1712 2096 R0 WINDOW 3 11 116 Left 2 SYMATTR InstName U3 SYMBOL Comparators\\LTC1441 3456 2096 M0 WINDOW 3 29 105 Left 2 SYMATTR InstName U4 SYMBOL voltage 2544 2032 R270 WINDOW 123 0 0 Left 2 WINDOW 39 -21 86 VRight 2 WINDOW 3 -53 -147 VRight 2 WINDOW 0 -21 -16 VRight 2 SYMATTR Value PULSE(-20 20 0 50u 50u 200u 500u) SYMATTR InstName V3 SYMBOL cap 3888 2000 R0 SYMATTR InstName C1 SYMATTR Value 1µ SYMBOL res 1584 2208 R0 SYMATTR InstName R8 SYMATTR Value 10k SYMBOL res 1616 2144 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R9 SYMATTR Value 10k SYMBOL res 3552 2208 R0 SYMATTR InstName R1 SYMATTR Value 10k SYMBOL res 3584 2144 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R3 SYMATTR Value 10k SYMBOL Comparators\\LTC1441 1712 1840 M180 WINDOW 3 11 116 Left 2 SYMATTR InstName U1 SYMBOL Comparators\\LTC1441 3456 1840 R180 WINDOW 3 11 116 Left 2 SYMATTR InstName U2 SYMBOL res 3584 1728 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R12 SYMATTR Value 10k SYMBOL res 3584 1920 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R13 SYMATTR Value 10k SYMBOL res 1584 1632 R0 SYMATTR InstName R2 SYMATTR Value 10k SYMBOL res 1584 1792 R0 SYMATTR InstName R4 SYMATTR Value 10k TEXT 2544 2472 Left 2 !.tran 0 2m 0 1u