Version 4
SHEET 1 1620 680
WIRE 576 -144 -320 -144
WIRE 96 -48 96 -64
WIRE 1008 -16 1008 -32
WIRE -320 16 -320 -144
WIRE 1616 48 1472 48
WIRE 576 64 576 -144
WIRE 672 64 576 64
WIRE 736 64 672 64
WIRE 848 64 816 64
WIRE 576 80 576 64
WIRE 96 96 96 32
WIRE 256 96 96 96
WIRE 848 112 848 64
WIRE 1184 112 848 112
WIRE 144 128 144 64
WIRE 96 144 96 96
WIRE 112 144 96 144
WIRE 1472 144 1472 48
WIRE 304 160 176 160
WIRE 368 160 304 160
WIRE 528 160 448 160
WIRE 1104 160 1104 96
WIRE -144 176 -192 176
WIRE -32 176 -64 176
WIRE -16 176 -16 16
WIRE -16 176 -32 176
WIRE 64 176 -16 176
WIRE 112 176 64 176
WIRE 304 176 304 160
WIRE 848 176 848 112
WIRE 1072 176 848 176
WIRE 784 192 784 176
WIRE 848 192 848 176
WIRE 1184 192 1184 176
WIRE 1184 192 1136 192
WIRE 1248 192 1184 192
WIRE 1360 192 1328 192
WIRE 1408 192 1360 192
WIRE 1008 208 1008 64
WIRE 1072 208 1008 208
WIRE -32 224 -32 176
WIRE -432 240 -432 192
WIRE -320 240 -320 96
WIRE -192 240 -192 176
WIRE 144 256 144 192
WIRE 256 256 256 96
WIRE 304 256 304 240
WIRE 304 256 256 256
WIRE 368 256 304 256
WIRE 576 256 576 176
WIRE 576 256 448 256
WIRE 1360 256 1360 192
WIRE 784 272 784 256
WIRE 848 272 848 256
WIRE 848 272 784 272
WIRE 576 288 576 256
WIRE 672 288 672 64
WIRE 848 288 848 272
WIRE 1008 288 1008 208
WIRE -432 352 -432 320
WIRE -320 352 -320 320
WIRE -192 352 -192 320
WIRE -32 352 -32 288
WIRE 576 384 576 368
WIRE 672 384 672 368
WIRE 848 384 848 368
WIRE 1008 384 1008 352
WIRE 1104 384 1104 224
WIRE 1360 384 1360 336
WIRE 1472 384 1472 240
WIRE 64 512 64 176
WIRE 1616 512 1616 48
WIRE 1616 512 64 512
FLAG 144 256 0
FLAG 144 64 +5V
FLAG -432 192 +5V
FLAG -432 352 0
FLAG -192 352 0
FLAG 576 384 0
FLAG -320 352 0
FLAG 1104 384 0
FLAG 1104 96 +5V
FLAG 1008 -32 +5V
FLAG 1008 384 0
FLAG -32 352 0
FLAG 1360 384 0
FLAG 1472 384 0
FLAG 96 -64 +5V
FLAG -16 -64 +5V
FLAG 672 384 0
FLAG 848 384 0
FLAG 784 176 +5V
SYMBOL voltage -432 224 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL voltage -192 224 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value SINE(.1 .05 97)
SYMBOL nmos 528 80 R0
SYMATTR InstName M1
SYMATTR Value AONR66924
SYMBOL res 464 144 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 100
SYMBOL res 464 240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 100
SYMBOL res 592 384 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R3
SYMATTR Value 10m
SYMBOL voltage -320 224 R0
WINDOW 3 -38 180 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value PULSE(12 0 0 1u 1u .2 .4)
SYMBOL cap 288 176 R0
SYMATTR InstName C1
SYMATTR Value 1n
SYMBOL res 832 48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 20k
SYMBOL diode 992 288 R0
SYMATTR InstName D3
SYMBOL res 992 -32 R0
SYMATTR InstName R5
SYMATTR Value 100k
SYMBOL OpAmps\\LTC6240 1104 192 R0
SYMATTR InstName U3
SYMBOL OpAmps\\LTC6240 144 160 R0
SYMATTR InstName U1
SYMBOL res 1344 176 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 10k
SYMBOL res -48 160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 1k
SYMBOL cap -48 224 R0
SYMATTR InstName C3
SYMATTR Value 1n
SYMBOL res 1376 352 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R8
SYMATTR Value 10k
SYMBOL npn 1408 144 R0
SYMATTR InstName Q1
SYMATTR Value 2N2222
SYMBOL res 80 -64 R0
SYMATTR InstName R9
SYMATTR Value 10k
SYMBOL res -336 0 R0
SYMATTR InstName R10
SYMATTR Value 10m
SYMBOL cap 1168 112 R0
SYMATTR InstName C2
SYMATTR Value 1n
SYMBOL res -32 -80 R0
SYMATTR InstName R12
SYMATTR Value 100k
SYMBOL res 688 384 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R11
SYMATTR Value 100k
SYMBOL diode 832 192 R0
SYMATTR InstName D1
SYMBOL diode 768 192 R0
SYMATTR InstName D2
SYMBOL res 864 384 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R13
SYMATTR Value 1k
TEXT -498 408 Left 2 !.tran 1