Version 4
SHEET 1 1096 680
WIRE 608 0 224 0
WIRE 784 0 688 0
WIRE 1040 0 784 0
WIRE 784 32 784 0
WIRE 224 112 224 0
WIRE 224 112 16 112
WIRE 336 112 224 112
WIRE 448 112 416 112
WIRE 544 112 512 112
WIRE 608 112 544 112
WIRE 736 112 608 112
WIRE 16 144 16 112
WIRE 544 144 544 112
WIRE 608 144 608 112
WIRE 16 240 16 224
WIRE 544 256 544 208
WIRE 608 256 608 224
WIRE 784 256 784 128
FLAG 16 240 0
FLAG 608 256 0
FLAG 784 256 0
FLAG 544 256 0
FLAG 16 112 in
FLAG 1040 0 out
SYMBOL voltage 16 128 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value PULSE(0 3 1 0 0 100ms 0.27 11)
SYMBOL schottky 448 128 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value 1N5817
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 528 144 R0
SYMATTR InstName C1
SYMATTR Value 10µF
SYMBOL res 592 128 R0
SYMATTR InstName R1
SYMATTR Value 1Meg
SYMBOL nmos 736 32 R0
SYMATTR InstName M1
SYMATTR Value AO6408
SYMBOL res 704 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL res 432 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 20k
TEXT -18 264 Left 2 !.tran 10s