EESchema Schematic File Version 2  date Monday 17 December 2012 10:57:52 AM IST
LIBS:power
LIBS:device
LIBS:transistors
LIBS:conn
LIBS:linear
LIBS:regul
LIBS:74xx
LIBS:cmos4000
LIBS:adc-dac
LIBS:memory
LIBS:xilinx
LIBS:special
LIBS:microcontrollers
LIBS:dsp
LIBS:microchip
LIBS:analog_switches
LIBS:motorola
LIBS:texas
LIBS:intel
LIBS:audio
LIBS:interface
LIBS:digital-audio
LIBS:philips
LIBS:display
LIBS:cypress
LIBS:siliconi
LIBS:opto
LIBS:atmel
LIBS:contrib
LIBS:valves
LIBS:analogSpice
LIBS:analogXSpice
LIBS:converterSpice
LIBS:digitalSpice
LIBS:linearSpice
LIBS:measurementSpice
LIBS:portSpice
LIBS:sourcesSpice
LIBS:digitalXSpice
LIBS:lm555n-cache
EELAYER 25  0
EELAYER END
$Descr A4 11700 8267
encoding utf-8
Sheet 1 1
Title ""
Date "17 dec 2012"
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L D_INVERTER U5
U 1 1 50CEA9C5
P 6700 4050
F 0 "U5" H 6550 4150 40  0000 C CNN
F 1 "D_INVERTER" H 6800 4150 40  0000 C CNN
	1    6700 4050
	1    0    0    -1  
$EndComp
$Comp
L D_SRLATCH U6
U 1 1 50CEA9AE
P 7100 3400
F 0 "U6" H 6900 3650 60  0000 C CNN
F 1 "D_SRLATCH" H 7100 3500 60  0000 C CNN
	1    7100 3400
	1    0    0    -1  
$EndComp
Text Notes 5750 3050 0    60   ~ 0
IC 555
Wire Wire Line
	4700 3000 4900 3000
Wire Wire Line
	4700 4750 4700 4650
Connection ~ 4400 3550
Connection ~ 4400 4900
Wire Wire Line
	4300 4900 7700 4900
Wire Wire Line
	4400 4200 4400 4100
Wire Wire Line
	7700 4900 7700 4800
Wire Wire Line
	7700 3250 7850 3250
Wire Wire Line
	7400 4600 7100 4600
Wire Wire Line
	7100 4600 7100 4250
Wire Wire Line
	7700 3650 7700 3550
Wire Wire Line
	6350 4050 6450 4050
Wire Wire Line
	6950 3900 6950 4000
Wire Wire Line
	7150 4000 7150 4050
Wire Wire Line
	7150 4050 6950 4050
Wire Wire Line
	6500 3550 6200 3550
Wire Wire Line
	6350 3250 6500 3250
Wire Wire Line
	5400 3250 5100 3250
Wire Wire Line
	5100 3250 5100 3750
Wire Wire Line
	5550 4500 5550 4350
Wire Wire Line
	5700 3550 5800 3550
Wire Wire Line
	5900 3250 6000 3250
Wire Wire Line
	6000 3850 6350 3850
Wire Wire Line
	5800 4150 6200 4150
Wire Wire Line
	5200 3550 5200 3700
Wire Wire Line
	5200 3700 5550 3700
Wire Wire Line
	5550 3700 5550 3750
Connection ~ 5550 4450
Wire Wire Line
	5750 4400 5750 4450
Wire Wire Line
	5100 4350 5100 4450
Wire Wire Line
	5100 4450 5750 4450
Wire Wire Line
	6500 3400 6450 3400
Wire Wire Line
	6450 3400 6450 4050
Wire Wire Line
	6950 4000 7250 4000
Wire Wire Line
	7250 4000 7250 3900
Connection ~ 7150 4000
Wire Wire Line
	7600 4250 7700 4250
Wire Wire Line
	7700 4400 7700 4350
Wire Wire Line
	7700 4350 7800 4350
Wire Wire Line
	7850 3850 7900 3850
Wire Wire Line
	4400 4900 4400 4700
Wire Wire Line
	4400 3600 4400 3500
Wire Wire Line
	4300 3000 4400 3000
Wire Wire Line
	4400 4150 4700 4150
Connection ~ 4400 4150
Wire Wire Line
	4300 3550 4700 3550
Wire Wire Line
	4700 3550 4700 3500
Wire Wire Line
	6350 4750 6350 4650
Text Label 4850 4100 0    60   ~ 0
d
$Comp
L VCVS E2
U 1 1 50AA12FF
P 5050 4050
F 0 "E2" H 4850 4150 50  0000 C CNN
F 1 "10000" H 4850 4000 50  0000 C CNN
	1    5050 4050
	0    1    1    0   
$EndComp
$Comp
L LIMIT8 U4
U 2 1 50B4E21B
P 6000 3550
F 0 "U4" H 6000 3650 30  0000 C CNN
F 1 "LIMIT8" H 6000 3550 30  0000 C CNN
	2    6000 3550
	0    1    1    0   
$EndComp
$Comp
L LIMIT8 U4
U 1 1 50B4E215
P 5800 3850
F 0 "U4" H 5800 3950 30  0000 C CNN
F 1 "LIMIT8" H 5800 3850 30  0000 C CNN
	1    5800 3850
	0    1    1    0   
$EndComp
$Comp
L DAC8 U3
U 2 1 50AAFCE7
P 7700 3950
F 0 "U3" H 7600 4050 40  0000 C CNN
F 1 "DAC8" H 7700 3950 40  0000 C CNN
	2    7700 3950
	0    1    1    0   
$EndComp
$Comp
L DAC8 U3
U 1 1 50AAFC9A
P 7850 3550
F 0 "U3" H 7750 3650 40  0000 C CNN
F 1 "DAC8" H 7850 3550 40  0000 C CNN
	1    7850 3550
	0    1    1    0   
$EndComp
$Comp
L ADC8 U2
U 3 1 50AAFB76
P 6350 4350
F 0 "U2" H 6250 4450 40  0000 C CNN
F 1 "ADC8" H 6350 4350 40  0000 C CNN
	3    6350 4350
	0    -1   -1   0   
$EndComp
$Comp
L ADC8 U2
U 2 1 50AAFB64
P 6350 3550
F 0 "U2" H 6250 3650 40  0000 C CNN
F 1 "ADC8" H 6350 3550 40  0000 C CNN
	2    6350 3550
	0    -1   -1   0   
$EndComp
$Comp
L ADC8 U2
U 1 1 50AAFB55
P 6200 3850
F 0 "U2" H 6100 3950 40  0000 C CNN
F 1 "ADC8" H 6200 3850 40  0000 C CNN
	1    6200 3850
	0    -1   -1   0   
$EndComp
$Comp
L PWR_FLAG #FLG01
U 1 1 50AA39A3
P 5750 4400
F 0 "#FLG01" H 5750 4670 30  0001 C CNN
F 1 "PWR_FLAG" H 5750 4630 30  0000 C CNN
	1    5750 4400
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 5 1 50AA2210
P 4050 3550
F 0 "U1" H 4050 3500 30  0000 C CNN
F 1 "PORT" H 4050 3550 30  0000 C CNN
	5    4050 3550
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 1 1 50AA21C7
P 4050 4900
F 0 "U1" H 4050 4850 30  0000 C CNN
F 1 "PORT" H 4050 4900 30  0000 C CNN
	1    4050 4900
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 2 1 50AA21BC
P 4700 5000
F 0 "U1" H 4700 4950 30  0000 C CNN
F 1 "PORT" H 4700 5000 30  0000 C CNN
	2    4700 5000
	0    -1   -1   0   
$EndComp
$Comp
L PORT U1
U 4 1 50AA21A9
P 6350 5000
F 0 "U1" H 6350 4950 30  0000 C CNN
F 1 "PORT" H 6350 5000 30  0000 C CNN
	4    6350 5000
	0    -1   -1   0   
$EndComp
$Comp
L PORT U1
U 7 1 50AA21A0
P 8050 4350
F 0 "U1" H 8050 4300 30  0000 C CNN
F 1 "PORT" H 8050 4350 30  0000 C CNN
	7    8050 4350
	-1   0    0    1   
$EndComp
$Comp
L PORT U1
U 3 1 50AA2181
P 8150 3850
F 0 "U1" H 8150 3800 30  0000 C CNN
F 1 "PORT" H 8150 3850 30  0000 C CNN
	3    8150 3850
	-1   0    0    1   
$EndComp
$Comp
L PORT U1
U 6 1 50AA2171
P 5150 3000
F 0 "U1" H 5150 2950 30  0000 C CNN
F 1 "PORT" H 5150 3000 30  0000 C CNN
	6    5150 3000
	-1   0    0    1   
$EndComp
$Comp
L PORT U1
U 8 1 50AA2162
P 4050 3000
F 0 "U1" H 4050 2950 30  0000 C CNN
F 1 "PORT" H 4050 3000 30  0000 C CNN
	8    4050 3000
	1    0    0    -1  
$EndComp
$Comp
L R R8
U 1 1 50AA20DA
P 7350 4250
F 0 "R8" V 7430 4250 50  0000 C CNN
F 1 "1500" V 7350 4250 50  0000 C CNN
	1    7350 4250
	0    1    1    0   
$EndComp
$Comp
L NPN Q1
U 1 1 50AA2050
P 7600 4600
F 0 "Q1" H 7600 4450 50  0000 R CNN
F 1 "QNOM" H 7600 4750 50  0000 R CNN
	1    7600 4600
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR02
U 1 1 50AA140C
P 5550 4500
F 0 "#PWR02" H 5550 4500 30  0001 C CNN
F 1 "GND" H 5550 4430 30  0001 C CNN
	1    5550 4500
	1    0    0    -1  
$EndComp
Text Label 4850 4000 0    60   ~ 0
c
Text Label 4700 4650 0    60   ~ 0
d
Text Label 4700 4150 0    60   ~ 0
c
$Comp
L R R7
U 1 1 50AA12F7
P 5650 3250
F 0 "R7" V 5730 3250 50  0000 C CNN
F 1 "25" V 5650 3250 50  0000 C CNN
	1    5650 3250
	0    -1   -1   0   
$EndComp
$Comp
L R R6
U 1 1 50AA12B0
P 5450 3550
F 0 "R6" V 5530 3550 50  0000 C CNN
F 1 "25" V 5450 3550 50  0000 C CNN
	1    5450 3550
	0    -1   -1   0   
$EndComp
Text Label 5300 4000 0    60   ~ 0
b
Text Label 5300 4100 0    60   ~ 0
a
Text Label 4700 3000 0    60   ~ 0
b
Text Label 4700 3500 0    60   ~ 0
a
$Comp
L VCVS E1
U 1 1 50AA11B6
P 5500 4050
F 0 "E1" H 5300 4150 50  0000 C CNN
F 1 "10000" H 5300 4000 50  0000 C CNN
	1    5500 4050
	0    1    1    0   
$EndComp
$Comp
L R R4
U 1 1 50A9E00B
P 4700 3250
F 0 "R4" V 4780 3250 50  0000 C CNN
F 1 "2E6" V 4700 3250 50  0000 C CNN
	1    4700 3250
	1    0    0    -1  
$EndComp
$Comp
L R R5
U 1 1 50A9E001
P 4700 4400
F 0 "R5" V 4780 4400 50  0000 C CNN
F 1 "2E6" V 4700 4400 50  0000 C CNN
	1    4700 4400
	1    0    0    -1  
$EndComp
$Comp
L R R3
U 1 1 50A9DF09
P 4400 4450
F 0 "R3" V 4480 4450 50  0000 C CNN
F 1 "5000" V 4400 4450 50  0000 C CNN
	1    4400 4450
	1    0    0    -1  
$EndComp
$Comp
L R R2
U 1 1 50A9DF03
P 4400 3850
F 0 "R2" V 4480 3850 50  0000 C CNN
F 1 "5000" V 4400 3850 50  0000 C CNN
	1    4400 3850
	1    0    0    -1  
$EndComp
$Comp
L R R1
U 1 1 50A9DEFE
P 4400 3250
F 0 "R1" V 4480 3250 50  0000 C CNN
F 1 "5000" V 4400 3250 50  0000 C CNN
	1    4400 3250
	1    0    0    -1  
$EndComp
$EndSCHEMATC