EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 3
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Connector:AudioJack2_SwitchT J4
U 1 1 5E815B85
P 2400 5750
F 0 "J4" H 2432 6075 50  0000 C CNN
F 1 "Signal_in" H 2432 5984 50  0000 C CNN
F 2 "CustomLib:RSJack" H 2400 5750 50  0001 C CNN
F 3 "~" H 2400 5750 50  0001 C CNN
	1    2400 5750
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR012
U 1 1 5E81633E
P 2650 5650
F 0 "#PWR012" H 2650 5400 50  0001 C CNN
F 1 "GND" V 2655 5522 50  0000 R CNN
F 2 "" H 2650 5650 50  0001 C CNN
F 3 "" H 2650 5650 50  0001 C CNN
	1    2650 5650
	0    -1   -1   0   
$EndComp
$Comp
L power:GND #PWR013
U 1 1 5E8169CD
P 2650 5850
F 0 "#PWR013" H 2650 5600 50  0001 C CNN
F 1 "GND" V 2655 5722 50  0000 R CNN
F 2 "" H 2650 5850 50  0001 C CNN
F 3 "" H 2650 5850 50  0001 C CNN
	1    2650 5850
	0    -1   -1   0   
$EndComp
Wire Wire Line
	2600 5650 2650 5650
Wire Wire Line
	2600 5850 2650 5850
$Comp
L Amplifier_Operational:TL072 U1
U 1 1 5E898D6D
P 2650 3400
F 0 "U1" H 2650 3767 50  0000 C CNN
F 1 "TL072" H 2650 3676 50  0000 C CNN
F 2 "Package_SO:SO-8_3.9x4.9mm_P1.27mm" H 2650 3400 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 2650 3400 50  0001 C CNN
	1    2650 3400
	1    0    0    -1  
$EndComp
Wire Wire Line
	2300 3500 2350 3500
$Comp
L Amplifier_Operational:TL072 U2
U 2 1 5E937166
P 6750 4350
F 0 "U2" H 6750 4700 50  0000 C CNN
F 1 "TL072" H 6750 4600 50  0000 C CNN
F 2 "Package_SO:SO-8_3.9x4.9mm_P1.27mm" H 6750 4350 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 6750 4350 50  0001 C CNN
	2    6750 4350
	1    0    0    1   
$EndComp
$Comp
L Connector:AudioJack2_SwitchT J2
U 1 1 5E941B1A
P 9650 4250
F 0 "J2" H 9470 4275 50  0000 R CNN
F 1 "PW_out" H 9470 4184 50  0000 R CNN
F 2 "CustomLib:RSJack" H 9650 4250 50  0001 C CNN
F 3 "~" H 9650 4250 50  0001 C CNN
	1    9650 4250
	-1   0    0    -1  
$EndComp
$Comp
L Device:R R5
U 1 1 5E964EA3
P 9100 4250
F 0 "R5" V 9200 4250 50  0000 C CNN
F 1 "1k" V 9100 4250 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 9030 4250 50  0001 C CNN
F 3 "~" H 9100 4250 50  0001 C CNN
	1    9100 4250
	0    -1   1    0   
$EndComp
$Comp
L power:GND #PWR07
U 1 1 5E9B5754
P 9400 4150
F 0 "#PWR07" H 9400 3900 50  0001 C CNN
F 1 "GND" V 9405 4022 50  0000 R CNN
F 2 "" H 9400 4150 50  0001 C CNN
F 3 "" H 9400 4150 50  0001 C CNN
	1    9400 4150
	0    1    1    0   
$EndComp
Wire Wire Line
	6350 4250 6450 4250
Wire Wire Line
	9250 4250 9450 4250
Wire Wire Line
	9450 4150 9400 4150
NoConn ~ 9450 4350
$Comp
L Connector:AudioJack2_SwitchT J1
U 1 1 5F50E5B6
P 850 3500
F 0 "J1" H 882 3825 50  0000 C CNN
F 1 "Width_in" H 882 3734 50  0000 C CNN
F 2 "CustomLib:RSJack" H 850 3500 50  0001 C CNN
F 3 "~" H 850 3500 50  0001 C CNN
	1    850  3500
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR04
U 1 1 5F50E5C0
P 1100 3400
F 0 "#PWR04" H 1100 3150 50  0001 C CNN
F 1 "GND" V 1105 3272 50  0000 R CNN
F 2 "" H 1100 3400 50  0001 C CNN
F 3 "" H 1100 3400 50  0001 C CNN
	1    1100 3400
	0    -1   -1   0   
$EndComp
$Comp
L power:GND #PWR05
U 1 1 5F50E5CA
P 1100 3600
F 0 "#PWR05" H 1100 3350 50  0001 C CNN
F 1 "GND" V 1105 3472 50  0000 R CNN
F 2 "" H 1100 3600 50  0001 C CNN
F 3 "" H 1100 3600 50  0001 C CNN
	1    1100 3600
	0    -1   -1   0   
$EndComp
Wire Wire Line
	1050 3400 1100 3400
Wire Wire Line
	1050 3600 1100 3600
Wire Wire Line
	1050 3500 1450 3500
$Comp
L Device:R_POT RV2
U 1 1 5FA83907
P 6050 4450
F 0 "RV2" H 5981 4496 50  0000 R CNN
F 1 "100k" H 5981 4405 50  0000 R CNN
F 2 "Potentiometer_THT:Potentiometer_Bourns_PTV09A-1_Single_Vertical" H 6050 4450 50  0001 C CNN
F 3 "~" H 6050 4450 50  0001 C CNN
	1    6050 4450
	1    0    0    -1  
$EndComp
$Comp
L Amplifier_Operational:TL072 U3
U 2 1 60116D34
P 8550 4250
F 0 "U3" H 8750 4350 50  0000 C CNN
F 1 "TL072" H 8750 4150 50  0000 C CNN
F 2 "Package_SO:SO-8_3.9x4.9mm_P1.27mm" H 8550 4250 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 8550 4250 50  0001 C CNN
	2    8550 4250
	1    0    0    1   
$EndComp
$Sheet
S 1050 6900 900  500 
U 60306893
F0 "Powah" 50
F1 "Powah.sch" 50
$EndSheet
$Comp
L Amplifier_Operational:TL072 U2
U 1 1 60315785
P 5650 3700
F 0 "U2" H 5650 4067 50  0000 C CNN
F 1 "TL072" H 5650 3976 50  0000 C CNN
F 2 "Package_SO:SO-8_3.9x4.9mm_P1.27mm" H 5650 3700 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 5650 3700 50  0001 C CNN
	1    5650 3700
	1    0    0    -1  
$EndComp
$Sheet
S 3700 3600 950  950 
U 5FA32BAF
F0 "PWMs" 50
F1 "PWMs.sch" 50
F2 "OUT" O R 4650 4250 50 
F3 "High_Threshold" I L 3700 3750 50 
F4 "Low_Threshold" I L 3700 3900 50 
F5 "Wave_In" I L 3700 4250 50 
$EndSheet
Wire Wire Line
	3700 4250 3600 4250
Wire Wire Line
	6050 4700 6050 4600
Wire Wire Line
	7050 4350 7100 4350
Wire Wire Line
	6350 4250 6350 4000
Wire Wire Line
	6350 4000 7100 4000
Wire Wire Line
	7100 4000 7100 4350
Wire Wire Line
	8900 4250 8950 4250
$Comp
L Connector:AudioJack2_SwitchT J3
U 1 1 5FC739B6
P 850 4450
F 0 "J3" H 882 4775 50  0000 C CNN
F 1 "Mod_in" H 882 4684 50  0000 C CNN
F 2 "CustomLib:RSJack" H 850 4450 50  0001 C CNN
F 3 "~" H 850 4450 50  0001 C CNN
	1    850  4450
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR08
U 1 1 5FC739C0
P 1100 4350
F 0 "#PWR08" H 1100 4100 50  0001 C CNN
F 1 "GND" V 1105 4222 50  0000 R CNN
F 2 "" H 1100 4350 50  0001 C CNN
F 3 "" H 1100 4350 50  0001 C CNN
	1    1100 4350
	0    -1   -1   0   
$EndComp
$Comp
L power:GND #PWR09
U 1 1 5FC739CA
P 1100 4550
F 0 "#PWR09" H 1100 4300 50  0001 C CNN
F 1 "GND" V 1105 4422 50  0000 R CNN
F 2 "" H 1100 4550 50  0001 C CNN
F 3 "" H 1100 4550 50  0001 C CNN
	1    1100 4550
	0    -1   -1   0   
$EndComp
Wire Wire Line
	1050 4350 1100 4350
Wire Wire Line
	1050 4550 1100 4550
Wire Wire Line
	1050 4450 1400 4450
$Comp
L power:GND #PWR03
U 1 1 5FC7B2DC
P 2250 3300
F 0 "#PWR03" H 2250 3050 50  0001 C CNN
F 1 "GND" V 2255 3172 50  0000 R CNN
F 2 "" H 2250 3300 50  0001 C CNN
F 3 "" H 2250 3300 50  0001 C CNN
	1    2250 3300
	0    1    1    0   
$EndComp
Wire Wire Line
	2250 3300 2350 3300
$Comp
L Device:R R2
U 1 1 5FC7C2A2
P 1600 3500
F 0 "R2" V 1393 3500 50  0000 C CNN
F 1 "200k" V 1484 3500 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 1530 3500 50  0001 C CNN
F 3 "~" H 1600 3500 50  0001 C CNN
	1    1600 3500
	0    1    1    0   
$EndComp
$Comp
L Device:R R6
U 1 1 5FC7D274
P 1600 4450
F 0 "R6" V 1393 4450 50  0000 C CNN
F 1 "100k" V 1484 4450 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 1530 4450 50  0001 C CNN
F 3 "~" H 1600 4450 50  0001 C CNN
	1    1600 4450
	0    1    1    0   
$EndComp
$Comp
L Device:R R4
U 1 1 5FC7E6BC
P 1600 4000
F 0 "R4" V 1393 4000 50  0000 C CNN
F 1 "100k" V 1484 4000 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 1530 4000 50  0001 C CNN
F 3 "~" H 1600 4000 50  0001 C CNN
	1    1600 4000
	0    1    1    0   
$EndComp
Wire Wire Line
	1450 4000 1400 4000
Wire Wire Line
	1400 4000 1400 4450
Connection ~ 1400 4450
Wire Wire Line
	1400 4450 1450 4450
$Comp
L Device:R R3
U 1 1 5FC805D0
P 2750 3750
F 0 "R3" V 2543 3750 50  0000 C CNN
F 1 "100k" V 2634 3750 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 2680 3750 50  0001 C CNN
F 3 "~" H 2750 3750 50  0001 C CNN
	1    2750 3750
	0    1    1    0   
$EndComp
Wire Wire Line
	2600 3750 2300 3750
Wire Wire Line
	2300 3750 2300 3500
Wire Wire Line
	2300 3500 1950 3500
Connection ~ 2300 3500
Wire Wire Line
	1950 3500 1950 4000
Wire Wire Line
	1950 4000 1750 4000
Connection ~ 1950 3500
Wire Wire Line
	1950 3500 1750 3500
$Comp
L Amplifier_Operational:TL072 U1
U 2 1 5FC8396D
P 2650 4350
F 0 "U1" H 2650 4717 50  0000 C CNN
F 1 "TL072" H 2650 4626 50  0000 C CNN
F 2 "Package_SO:SO-8_3.9x4.9mm_P1.27mm" H 2650 4350 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 2650 4350 50  0001 C CNN
	2    2650 4350
	1    0    0    -1  
$EndComp
Wire Wire Line
	2300 4450 2350 4450
$Comp
L power:GND #PWR06
U 1 1 5FC83979
P 2250 4250
F 0 "#PWR06" H 2250 4000 50  0001 C CNN
F 1 "GND" V 2255 4122 50  0000 R CNN
F 2 "" H 2250 4250 50  0001 C CNN
F 3 "" H 2250 4250 50  0001 C CNN
	1    2250 4250
	0    1    1    0   
$EndComp
Wire Wire Line
	2250 4250 2350 4250
$Comp
L Device:R R7
U 1 1 5FC83984
P 2750 4700
F 0 "R7" V 2543 4700 50  0000 C CNN
F 1 "100k" V 2634 4700 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 2680 4700 50  0001 C CNN
F 3 "~" H 2750 4700 50  0001 C CNN
	1    2750 4700
	0    1    1    0   
$EndComp
Wire Wire Line
	2600 4700 2300 4700
Wire Wire Line
	2300 4700 2300 4450
Connection ~ 2300 4450
Wire Wire Line
	1750 4450 1950 4450
Wire Wire Line
	2900 4700 3150 4700
Wire Wire Line
	3150 4700 3150 4350
Wire Wire Line
	2950 4350 3150 4350
Wire Wire Line
	2900 3750 3150 3750
Wire Wire Line
	3150 3750 3150 3400
Wire Wire Line
	2950 3400 3150 3400
$Comp
L Device:R R8
U 1 1 5FC8E8D8
P 1600 5250
F 0 "R8" V 1393 5250 50  0000 C CNN
F 1 "240k" V 1484 5250 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 1530 5250 50  0001 C CNN
F 3 "~" H 1600 5250 50  0001 C CNN
	1    1600 5250
	0    1    1    0   
$EndComp
$Comp
L Device:R R1
U 1 1 5FC8F395
P 1600 2600
F 0 "R1" V 1393 2600 50  0000 C CNN
F 1 "240k" V 1484 2600 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 1530 2600 50  0001 C CNN
F 3 "~" H 1600 2600 50  0001 C CNN
	1    1600 2600
	0    1    1    0   
$EndComp
$Comp
L Device:R_POT RV1
U 1 1 5FC9006D
P 1000 2600
F 0 "RV1" H 931 2646 50  0000 R CNN
F 1 "100k" H 931 2555 50  0000 R CNN
F 2 "Potentiometer_THT:Potentiometer_Bourns_PTV09A-1_Single_Vertical" H 1000 2600 50  0001 C CNN
F 3 "~" H 1000 2600 50  0001 C CNN
	1    1000 2600
	1    0    0    -1  
$EndComp
$Comp
L Device:R_POT RV3
U 1 1 5FC90594
P 1000 5250
F 0 "RV3" H 931 5296 50  0000 R CNN
F 1 "100k" H 931 5205 50  0000 R CNN
F 2 "Potentiometer_THT:Potentiometer_Bourns_PTV09A-1_Single_Vertical" H 1000 5250 50  0001 C CNN
F 3 "~" H 1000 5250 50  0001 C CNN
	1    1000 5250
	1    0    0    -1  
$EndComp
$Comp
L power:+VDC #PWR01
U 1 1 5FC92266
P 1000 2400
F 0 "#PWR01" H 1000 2300 50  0001 C CNN
F 1 "+VDC" H 1000 2675 50  0000 C CNN
F 2 "" H 1000 2400 50  0001 C CNN
F 3 "" H 1000 2400 50  0001 C CNN
	1    1000 2400
	1    0    0    -1  
$EndComp
$Comp
L power:+VDC #PWR010
U 1 1 5FC92F34
P 1000 5050
F 0 "#PWR010" H 1000 4950 50  0001 C CNN
F 1 "+VDC" H 1000 5325 50  0000 C CNN
F 2 "" H 1000 5050 50  0001 C CNN
F 3 "" H 1000 5050 50  0001 C CNN
	1    1000 5050
	1    0    0    -1  
$EndComp
$Comp
L power:-VDC #PWR011
U 1 1 5FC93071
P 1000 5450
F 0 "#PWR011" H 1000 5350 50  0001 C CNN
F 1 "-VDC" H 1000 5725 50  0000 C CNN
F 2 "" H 1000 5450 50  0001 C CNN
F 3 "" H 1000 5450 50  0001 C CNN
	1    1000 5450
	-1   0    0    1   
$EndComp
$Comp
L power:-VDC #PWR02
U 1 1 5FC935FA
P 1000 2800
F 0 "#PWR02" H 1000 2700 50  0001 C CNN
F 1 "-VDC" H 1000 3075 50  0000 C CNN
F 2 "" H 1000 2800 50  0001 C CNN
F 3 "" H 1000 2800 50  0001 C CNN
	1    1000 2800
	-1   0    0    1   
$EndComp
Wire Wire Line
	1000 5450 1000 5400
Wire Wire Line
	1000 5100 1000 5050
Wire Wire Line
	1150 5250 1450 5250
Wire Wire Line
	1750 5250 1950 5250
Wire Wire Line
	1950 5250 1950 4450
Connection ~ 1950 4450
Wire Wire Line
	1950 4450 2300 4450
Wire Wire Line
	1000 2800 1000 2750
Wire Wire Line
	1000 2450 1000 2400
Wire Wire Line
	1150 2600 1450 2600
Wire Wire Line
	1750 2600 1950 2600
Wire Wire Line
	1950 2600 1950 3500
$Comp
L Amplifier_Operational:TL072 U3
U 1 1 5FDDB917
P 9150 5550
F 0 "U3" H 9150 5917 50  0000 C CNN
F 1 "TL072" H 9150 5826 50  0000 C CNN
F 2 "Package_SO:SO-8_3.9x4.9mm_P1.27mm" H 9150 5550 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 9150 5550 50  0001 C CNN
	1    9150 5550
	-1   0    0    -1  
$EndComp
Wire Wire Line
	6050 3700 6050 4100
Wire Wire Line
	5950 3700 6050 3700
Connection ~ 6050 4100
Wire Wire Line
	6050 4100 6050 4300
Wire Wire Line
	5250 4100 5250 3800
Wire Wire Line
	5250 3800 5350 3800
Wire Wire Line
	6200 4450 6450 4450
Wire Wire Line
	3700 3900 3350 3900
Wire Wire Line
	3350 3900 3350 4350
Wire Wire Line
	3350 4350 3150 4350
Connection ~ 3150 4350
Wire Wire Line
	3700 3750 3350 3750
Wire Wire Line
	3350 3750 3350 3400
Wire Wire Line
	3350 3400 3150 3400
Connection ~ 3150 3400
Wire Wire Line
	4650 4250 5150 4250
Wire Wire Line
	2600 5750 3600 5750
Wire Wire Line
	8850 4250 8900 4250
Connection ~ 8900 4250
$Comp
L Device:R R46
U 1 1 60D523CB
P 8650 3900
F 0 "R46" V 8443 3900 50  0000 C CNN
F 1 "47k" V 8534 3900 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 8580 3900 50  0001 C CNN
F 3 "~" H 8650 3900 50  0001 C CNN
	1    8650 3900
	0    1    1    0   
$EndComp
$Comp
L Device:R R33
U 1 1 60D52FBD
P 8000 3900
F 0 "R33" V 7793 3900 50  0000 C CNN
F 1 "10k" V 7884 3900 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 7930 3900 50  0001 C CNN
F 3 "~" H 8000 3900 50  0001 C CNN
	1    8000 3900
	0    1    1    0   
$EndComp
Wire Wire Line
	8150 3900 8200 3900
Wire Wire Line
	8200 3900 8200 4150
Wire Wire Line
	8200 4150 8250 4150
Wire Wire Line
	8200 3900 8500 3900
Connection ~ 8200 3900
Wire Wire Line
	8800 3900 8900 3900
Wire Wire Line
	8900 3900 8900 4250
Wire Wire Line
	7850 3900 7800 3900
$Comp
L power:GND #PWR0102
U 1 1 60D61F34
P 7800 3900
F 0 "#PWR0102" H 7800 3650 50  0001 C CNN
F 1 "GND" V 7805 3772 50  0000 R CNN
F 2 "" H 7800 3900 50  0001 C CNN
F 3 "" H 7800 3900 50  0001 C CNN
	1    7800 3900
	0    1    1    0   
$EndComp
$Comp
L Device:R R32
U 1 1 60D636CD
P 7300 4350
F 0 "R32" V 7200 4350 50  0000 C CNN
F 1 "1k" V 7300 4350 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 7230 4350 50  0001 C CNN
F 3 "~" H 7300 4350 50  0001 C CNN
	1    7300 4350
	0    1    1    0   
$EndComp
Wire Wire Line
	7150 4350 7100 4350
Connection ~ 7100 4350
Wire Wire Line
	7450 4350 7900 4350
Wire Wire Line
	7900 4350 8250 4350
$Comp
L Device:D_Schottky D3
U 1 1 60D6BC6F
P 8500 4800
F 0 "D3" H 8500 5017 50  0000 C CNN
F 1 "SD103" H 8500 4926 50  0000 C CNN
F 2 "Diode_SMD:D_SOD-323_HandSoldering" H 8500 4800 50  0001 C CNN
F 3 "~" H 8500 4800 50  0001 C CNN
	1    8500 4800
	-1   0    0    -1  
$EndComp
$Comp
L Device:CP1 C9
U 1 1 60D75346
P 8700 5000
F 0 "C9" H 8950 5050 50  0000 R CNN
F 1 "10µF" H 9000 4950 50  0000 R CNN
F 2 "Capacitor_Tantalum_SMD:CP_EIA-3528-12_Kemet-T" H 8700 5000 50  0001 C CNN
F 3 "~" H 8700 5000 50  0001 C CNN
	1    8700 5000
	-1   0    0    -1  
$EndComp
Wire Wire Line
	8700 5150 8700 5200
Wire Wire Line
	8700 4800 8700 4850
Connection ~ 8700 4800
Wire Wire Line
	8700 4800 8650 4800
$Comp
L Transistor_FET:MMBFJ113 Q1
U 1 1 60D86CD4
P 8000 5550
F 0 "Q1" H 8191 5504 50  0000 L CNN
F 1 "MMBFJ113" H 8191 5595 50  0000 L CNN
F 2 "Package_TO_SOT_SMD:SOT-23" H 8200 5475 50  0001 L CIN
F 3 "https://www.onsemi.com/pub/Collateral/MMBFJ113-D.PDF" H 8000 5550 50  0001 L CNN
	1    8000 5550
	-1   0    0    1   
$EndComp
Wire Wire Line
	8350 4800 7900 4800
Wire Wire Line
	7900 5750 7900 5850
$Comp
L power:GND #PWR0103
U 1 1 60D9C583
P 7900 5850
F 0 "#PWR0103" H 7900 5600 50  0001 C CNN
F 1 "GND" H 7905 5677 50  0000 C CNN
F 2 "" H 7900 5850 50  0001 C CNN
F 3 "" H 7900 5850 50  0001 C CNN
	1    7900 5850
	1    0    0    -1  
$EndComp
$Comp
L Device:R R47
U 1 1 60DA1CB5
P 8900 5000
F 0 "R47" H 8970 5046 50  0000 L CNN
F 1 "1M" H 8970 4955 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 8830 5000 50  0001 C CNN
F 3 "~" H 8900 5000 50  0001 C CNN
	1    8900 5000
	1    0    0    -1  
$EndComp
Wire Wire Line
	8900 4850 8900 4800
Connection ~ 8900 4800
Wire Wire Line
	8900 4800 8700 4800
Wire Wire Line
	8900 5150 8900 5200
$Comp
L power:GND #PWR0104
U 1 1 60DB1F1E
P 8900 5250
F 0 "#PWR0104" H 8900 5000 50  0001 C CNN
F 1 "GND" H 8905 5077 50  0000 C CNN
F 2 "" H 8900 5250 50  0001 C CNN
F 3 "" H 8900 5250 50  0001 C CNN
	1    8900 5250
	1    0    0    -1  
$EndComp
Wire Wire Line
	8900 5250 8900 5200
Wire Wire Line
	8700 5200 8900 5200
Connection ~ 7900 4350
Wire Wire Line
	7900 4350 7900 4800
Connection ~ 7900 4800
Wire Wire Line
	7900 4800 7900 5300
$Comp
L Device:R R44
U 1 1 60DCE0D6
P 8100 5300
F 0 "R44" V 8000 5300 50  0000 C CNN
F 1 "1M" V 8100 5300 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 8030 5300 50  0001 C CNN
F 3 "~" H 8100 5300 50  0001 C CNN
	1    8100 5300
	0    1    1    0   
$EndComp
$Comp
L Device:R R45
U 1 1 60DCEA3D
P 8500 5550
F 0 "R45" V 8400 5550 50  0000 C CNN
F 1 "1M" V 8500 5550 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 8430 5550 50  0001 C CNN
F 3 "~" H 8500 5550 50  0001 C CNN
	1    8500 5550
	0    1    1    0   
$EndComp
Wire Wire Line
	8650 5550 8700 5550
Wire Wire Line
	8350 5550 8300 5550
Wire Wire Line
	8300 5550 8300 5300
Wire Wire Line
	8300 5300 8250 5300
Connection ~ 8300 5550
Wire Wire Line
	8300 5550 8200 5550
Wire Wire Line
	7950 5300 7900 5300
Connection ~ 7900 5300
Wire Wire Line
	7900 5300 7900 5350
Connection ~ 8900 5200
$Comp
L Device:R R48
U 1 1 60DE38D9
P 8900 5900
F 0 "R48" V 8693 5900 50  0000 C CNN
F 1 "330k" V 8784 5900 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 8830 5900 50  0001 C CNN
F 3 "~" H 8900 5900 50  0001 C CNN
	1    8900 5900
	0    1    1    0   
$EndComp
$Comp
L Device:R R49
U 1 1 60DE3B74
P 9700 5900
F 0 "R49" V 9493 5900 50  0000 C CNN
F 1 "1k" V 9584 5900 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 9630 5900 50  0001 C CNN
F 3 "~" H 9700 5900 50  0001 C CNN
	1    9700 5900
	0    1    1    0   
$EndComp
Wire Wire Line
	9550 5900 9500 5900
Wire Wire Line
	8750 5900 8700 5900
Wire Wire Line
	8700 5900 8700 5550
Connection ~ 8700 5550
Wire Wire Line
	8700 5550 8850 5550
Wire Wire Line
	9450 5650 9500 5650
Wire Wire Line
	9500 5650 9500 5900
Connection ~ 9500 5900
Wire Wire Line
	9500 5900 9050 5900
Wire Wire Line
	10050 6050 10050 6100
Wire Wire Line
	9450 5450 9500 5450
Wire Wire Line
	9500 5450 9500 4800
Wire Wire Line
	8900 4800 9500 4800
$Comp
L Device:R_POT_TRIM RV4
U 1 1 60E107DE
P 10050 5900
F 0 "RV4" H 9980 5946 50  0000 R CNN
F 1 "1k" H 9980 5855 50  0000 R CNN
F 2 "Potentiometer_SMD:Potentiometer_Bourns_3224W_Vertical" H 10050 5900 50  0001 C CNN
F 3 "~" H 10050 5900 50  0001 C CNN
	1    10050 5900
	-1   0    0    -1  
$EndComp
$Comp
L power:GND #PWR0105
U 1 1 60E154D2
P 10050 6100
F 0 "#PWR0105" H 10050 5850 50  0001 C CNN
F 1 "GND" H 10055 5927 50  0000 C CNN
F 2 "" H 10050 6100 50  0001 C CNN
F 3 "" H 10050 6100 50  0001 C CNN
	1    10050 6100
	1    0    0    -1  
$EndComp
Wire Wire Line
	9900 5900 9850 5900
Wire Wire Line
	10050 5750 10050 5700
$Comp
L Device:R R50
U 1 1 60E1F03D
P 10050 5550
F 0 "R50" H 10120 5596 50  0000 L CNN
F 1 "10k" H 10120 5505 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 9980 5550 50  0001 C CNN
F 3 "~" H 10050 5550 50  0001 C CNN
	1    10050 5550
	1    0    0    -1  
$EndComp
Wire Wire Line
	10050 5400 10050 5350
$Comp
L power:+VDC #PWR0106
U 1 1 60E29DD7
P 10050 5350
F 0 "#PWR0106" H 10050 5250 50  0001 C CNN
F 1 "+VDC" H 10050 5625 50  0000 C CNN
F 2 "" H 10050 5350 50  0001 C CNN
F 3 "" H 10050 5350 50  0001 C CNN
	1    10050 5350
	1    0    0    -1  
$EndComp
Wire Wire Line
	5250 4100 6050 4100
Wire Wire Line
	5150 3600 5150 4250
Wire Wire Line
	3600 4250 3600 4700
Wire Wire Line
	5350 3600 5150 3600
Wire Wire Line
	6050 4700 3600 4700
Connection ~ 3600 4700
Wire Wire Line
	3600 4700 3600 5750
$EndSCHEMATC