EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L project_oscillator:R R?
U 1 1 5FC9C612
P 3600 4100
F 0 "R?" H 3670 4146 50  0000 L CNN
F 1 "4R1" H 3670 4055 50  0000 L CNN
F 2 "project_oscillator:R_0603" V 3530 4100 50  0001 C CNN
F 3 "~" H 3600 4100 50  0001 C CNN
	1    3600 4100
	1    0    0    -1  
$EndComp
$Comp
L project_oscillator:PT100 TH?
U 1 1 5FCD1335
P 3600 3750
F 0 "TH?" H 3698 3796 50  0000 L CNN
F 1 "PT100" H 3698 3705 50  0000 L CNN
F 2 "project_oscillator:R_0603" H 3600 3800 50  0001 C CNN
F 3 "https://www.heraeus.com/media/media/group/doc_group/products_1/hst/sot_to/de_15/to_92_d.pdf" H 3600 3800 50  0001 C CNN
	1    3600 3750
	1    0    0    -1  
$EndComp
$Comp
L project_oscillator:R R?
U 1 1 5FCD2027
P 3250 3400
F 0 "R?" V 3150 3300 50  0000 L CNN
F 1 "10k" V 3350 3300 50  0000 L CNN
F 2 "project_oscillator:R_0603" V 3180 3400 50  0001 C CNN
F 3 "~" H 3250 3400 50  0001 C CNN
	1    3250 3400
	0    1    1    0   
$EndComp
$Comp
L project_oscillator:BCM847 Q?
U 1 1 5FCD33C7
P 4700 3400
F 0 "Q?" H 4700 3765 50  0000 C CNN
F 1 "BCM847" H 4700 3674 50  0000 C CNN
F 2 "project_oscillator:SOT-457, SC-74" H 4650 3250 50  0001 C CNN
F 3 "" H 4650 3250 50  0001 C CNN
	1    4700 3400
	1    0    0    -1  
$EndComp
Wire Wire Line
	4400 3250 4250 3250
Wire Wire Line
	4250 3250 4250 2900
Wire Wire Line
	4250 2900 5200 2900
Wire Wire Line
	5200 2900 5200 3550
Wire Wire Line
	5200 3550 5000 3550
Wire Wire Line
	4300 3550 4400 3550
$Comp
L power:GND #PWR?
U 1 1 5FCD7D2A
P 5100 3600
F 0 "#PWR?" H 5100 3350 50  0001 C CNN
F 1 "GND" H 5105 3427 50  0000 C CNN
F 2 "" H 5100 3600 50  0001 C CNN
F 3 "" H 5100 3600 50  0001 C CNN
	1    5100 3600
	1    0    0    -1  
$EndComp
Wire Wire Line
	4300 3550 4300 3950
Wire Wire Line
	5100 3600 5100 3400
Wire Wire Line
	5100 3400 5000 3400
$Comp
L power:+12V #PWR?
U 1 1 5FCD9521
P 5100 2550
F 0 "#PWR?" H 5100 2400 50  0001 C CNN
F 1 "+12V" H 5115 2723 50  0000 C CNN
F 2 "" H 5100 2550 50  0001 C CNN
F 3 "" H 5100 2550 50  0001 C CNN
	1    5100 2550
	1    0    0    -1  
$EndComp
$Comp
L project_oscillator:R R?
U 1 1 5FCDA509
P 5100 2700
F 0 "R?" H 5170 2746 50  0000 L CNN
F 1 "R" H 5170 2655 50  0000 L CNN
F 2 "project_oscillator:R_0603" V 5030 2700 50  0001 C CNN
F 3 "~" H 5100 2700 50  0001 C CNN
	1    5100 2700
	1    0    0    -1  
$EndComp
Wire Wire Line
	5100 2850 5100 3100
Wire Wire Line
	5100 3250 5000 3250
$Comp
L power:GND #PWR?
U 1 1 5FCDB261
P 3600 4250
F 0 "#PWR?" H 3600 4000 50  0001 C CNN
F 1 "GND" H 3605 4077 50  0000 C CNN
F 2 "" H 3600 4250 50  0001 C CNN
F 3 "" H 3600 4250 50  0001 C CNN
	1    3600 4250
	1    0    0    -1  
$EndComp
$Comp
L project_oscillator:R R?
U 1 1 5FCDBDDA
P 5450 3550
F 0 "R?" V 5350 3450 50  0000 L CNN
F 1 "91R" V 5550 3450 50  0000 L CNN
F 2 "project_oscillator:R_0603" V 5380 3550 50  0001 C CNN
F 3 "~" H 5450 3550 50  0001 C CNN
	1    5450 3550
	0    1    1    0   
$EndComp
Wire Wire Line
	5200 3550 5300 3550
Connection ~ 5200 3550
$Comp
L Amplifier_Operational:TL082 U?
U 1 1 5FCDFD33
P 5900 3550
F 0 "U?" H 5900 3183 50  0000 C CNN
F 1 "TL082" H 5900 3274 50  0000 C CNN
F 2 "" H 5900 3550 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl081.pdf" H 5900 3550 50  0001 C CNN
	1    5900 3550
	-1   0    0    1   
$EndComp
$Comp
L Amplifier_Operational:TL082 U?
U 2 1 5FCE13DF
P 7250 4050
F 0 "U?" H 7250 3683 50  0000 C CNN
F 1 "TL082" H 7250 3774 50  0000 C CNN
F 2 "" H 7250 4050 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl081.pdf" H 7250 4050 50  0001 C CNN
	2    7250 4050
	1    0    0    1   
$EndComp
$Comp
L Amplifier_Operational:TL082 U?
U 3 1 5FCE28C4
P 1650 1500
F 0 "U?" H 1608 1546 50  0000 L CNN
F 1 "TL082" H 1608 1455 50  0000 L CNN
F 2 "" H 1650 1500 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl081.pdf" H 1650 1500 50  0001 C CNN
	3    1650 1500
	1    0    0    -1  
$EndComp
$Comp
L Device:C C?
U 1 1 5FCE6EB5
P 1950 1500
F 0 "C?" H 2065 1546 50  0000 L CNN
F 1 "C" H 2065 1455 50  0000 L CNN
F 2 "" H 1988 1350 50  0001 C CNN
F 3 "~" H 1950 1500 50  0001 C CNN
	1    1950 1500
	1    0    0    -1  
$EndComp
Wire Wire Line
	1550 1200 1950 1200
Wire Wire Line
	1950 1200 1950 1350
Wire Wire Line
	1550 1800 1950 1800
Wire Wire Line
	1950 1800 1950 1650
$Comp
L power:+12V #PWR?
U 1 1 5FCE9518
P 1950 1200
F 0 "#PWR?" H 1950 1050 50  0001 C CNN
F 1 "+12V" H 1965 1373 50  0000 C CNN
F 2 "" H 1950 1200 50  0001 C CNN
F 3 "" H 1950 1200 50  0001 C CNN
	1    1950 1200
	1    0    0    -1  
$EndComp
Connection ~ 1950 1200
$Comp
L power:-12V #PWR?
U 1 1 5FCE9FFF
P 1950 1800
F 0 "#PWR?" H 1950 1900 50  0001 C CNN
F 1 "-12V" H 1965 1973 50  0000 C CNN
F 2 "" H 1950 1800 50  0001 C CNN
F 3 "" H 1950 1800 50  0001 C CNN
	1    1950 1800
	-1   0    0    1   
$EndComp
Connection ~ 1950 1800
$Comp
L power:GND #PWR?
U 1 1 5FCF1940
P 6300 3700
F 0 "#PWR?" H 6300 3450 50  0001 C CNN
F 1 "GND" H 6305 3527 50  0000 C CNN
F 2 "" H 6300 3700 50  0001 C CNN
F 3 "" H 6300 3700 50  0001 C CNN
	1    6300 3700
	1    0    0    -1  
$EndComp
Wire Wire Line
	6200 3650 6300 3650
Wire Wire Line
	6300 3650 6300 3700
Wire Wire Line
	6200 3450 6300 3450
Wire Wire Line
	6300 3450 6300 3100
Wire Wire Line
	6300 3100 5100 3100
Connection ~ 5100 3100
Wire Wire Line
	5100 3100 5100 3250
Text Label 4650 3950 0    50   ~ 0
I_CTRL
Wire Wire Line
	3400 3400 3600 3400
Wire Wire Line
	3600 3400 3600 3600
Connection ~ 3600 3400
Wire Wire Line
	3600 3400 4400 3400
Wire Wire Line
	3600 3950 3600 3900
$Comp
L Transistor_FET:2N7002 Q?
U 1 1 5FCF95CC
P 7200 2950
F 0 "Q?" V 7000 3050 50  0000 C CNN
F 1 "2N7002" V 7100 3150 50  0000 C CNN
F 2 "Package_TO_SOT_SMD:SOT-23" H 7400 2875 50  0001 L CIN
F 3 "https://www.onsemi.com/pub/Collateral/NDS7002A-D.PDF" H 7200 2950 50  0001 L CNN
	1    7200 2950
	0    1    1    0   
$EndComp
$Comp
L Device:C C?
U 1 1 5FCFE79F
P 7200 3450
F 0 "C?" V 6948 3450 50  0000 C CNN
F 1 "C" V 7039 3450 50  0000 C CNN
F 2 "" H 7238 3300 50  0001 C CNN
F 3 "~" H 7200 3450 50  0001 C CNN
	1    7200 3450
	0    1    1    0   
$EndComp
Wire Wire Line
	6950 3950 6800 3950
Wire Wire Line
	6800 3950 6800 3450
Wire Wire Line
	6800 3050 7000 3050
Wire Wire Line
	7050 3450 6800 3450
Connection ~ 6800 3450
Wire Wire Line
	6800 3450 6800 3050
Wire Wire Line
	7350 3450 7700 3450
Wire Wire Line
	7700 3450 7700 4050
Wire Wire Line
	7700 4050 7550 4050
Wire Wire Line
	7700 3450 7700 3050
Wire Wire Line
	7700 3050 7400 3050
Connection ~ 7700 3450
$Comp
L power:GND #PWR?
U 1 1 5FD3B86E
P 6800 4200
F 0 "#PWR?" H 6800 3950 50  0001 C CNN
F 1 "GND" H 6805 4027 50  0000 C CNN
F 2 "" H 6800 4200 50  0001 C CNN
F 3 "" H 6800 4200 50  0001 C CNN
	1    6800 4200
	1    0    0    -1  
$EndComp
Wire Wire Line
	6800 4200 6800 4150
Wire Wire Line
	6800 4150 6950 4150
Wire Wire Line
	4300 3950 6800 3950
Connection ~ 6800 3950
$EndSCHEMATC