Version 4 SHEET 1 1644 920 WIRE 544 80 192 80 WIRE 960 80 544 80 WIRE 1056 144 864 144 WIRE 1168 144 1056 144 WIRE 960 176 960 80 WIRE 192 192 192 80 WIRE 544 192 544 80 WIRE 864 256 864 144 WIRE 912 256 864 256 WIRE 1168 256 1168 144 WIRE 192 336 192 272 WIRE 192 336 112 336 WIRE 256 336 192 336 WIRE 272 336 256 336 WIRE 368 336 352 336 WIRE 416 336 368 336 WIRE 544 336 544 256 WIRE 544 336 496 336 WIRE 960 336 960 272 WIRE 960 336 544 336 WIRE 1168 336 960 336 WIRE 960 384 960 336 WIRE 192 400 192 336 WIRE 544 400 544 336 WIRE 256 448 256 336 WIRE 272 448 256 448 WIRE 368 448 368 336 WIRE 368 448 336 448 WIRE 912 464 864 464 WIRE 864 544 864 464 WIRE 1040 544 864 544 WIRE 1168 544 1040 544 WIRE 1168 576 1168 544 WIRE 192 592 192 480 WIRE 544 592 544 464 WIRE 544 592 192 592 WIRE 960 592 960 480 WIRE 960 592 544 592 WIRE 544 688 544 592 WIRE 1168 688 1168 656 WIRE 1168 688 544 688 FLAG 112 336 0 FLAG 1040 544 Signal_low FLAG 1056 144 Signal_high SYMBOL voltage 192 176 R0 SYMATTR InstName Vdd SYMATTR Value 25 SYMBOL voltage 192 384 R0 SYMATTR InstName Vss SYMATTR Value 25 SYMBOL Diode 560 256 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D1 SYMBOL Diode 560 464 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D2 SYMBOL voltage 1168 240 R0 SYMATTR InstName V3 SYMATTR Value PULSE(0 2.5 0 1n 1n 0.5m 1m 1000) SYMBOL voltage 1168 560 R0 SYMATTR InstName V4 SYMATTR Value PULSE(0 2.5 0.5m 1n 1n 0.5m 1m 1000) SYMBOL Res 368 320 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 10 SYMBOL nmos 912 384 R0 SYMATTR InstName M2 SYMATTR Value BSP89 SYMBOL nmos 912 176 R0 SYMATTR InstName M1 SYMATTR Value BSP89 SYMBOL Cap 336 432 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value .1m SYMBOL Ind 400 352 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value .06 TEXT -192 168 Left 2 !.tran 0 100m 90m 1m