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 "1.2M" 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 "10k" 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 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 5600 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 Device:C C? U 1 1 5FCFE79F P 7200 3450 F 0 "C?" V 6950 3450 50 0000 C CNN F 1 "2700p" 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 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 $Comp L project_oscillator:R R? U 1 1 5FCF4C3C P 6300 2450 F 0 "R?" H 6370 2496 50 0000 L CNN F 1 "1M" H 6370 2405 50 0000 L CNN F 2 "project_oscillator:R_0603" V 6230 2450 50 0001 C CNN F 3 "~" H 6300 2450 50 0001 C CNN 1 6300 2450 1 0 0 -1 $EndComp $Comp L project_oscillator:R R? U 1 1 5FCF5365 P 5900 2450 F 0 "R?" H 5970 2496 50 0000 L CNN F 1 "110k" H 5970 2405 50 0000 L CNN F 2 "project_oscillator:R_0603" V 5830 2450 50 0001 C CNN F 3 "~" H 5900 2450 50 0001 C CNN 1 5900 2450 1 0 0 -1 $EndComp Wire Wire Line 5900 2300 5900 2200 Wire Wire Line 5900 2200 6300 2200 Wire Wire Line 6300 2200 6300 2300 Wire Wire Line 6300 2600 6300 3100 Connection ~ 6300 3100 $Comp L power:GND #PWR? U 1 1 5FCF6C97 P 5900 2600 F 0 "#PWR?" H 5900 2350 50 0001 C CNN F 1 "GND" H 5905 2427 50 0000 C CNN F 2 "" H 5900 2600 50 0001 C CNN F 3 "" H 5900 2600 50 0001 C CNN 1 5900 2600 1 0 0 -1 $EndComp $Comp L Device:C C? U 1 1 5FCF8C00 P 5600 3400 F 0 "C?" V 5348 3400 50 0000 C CNN F 1 "100p" V 5439 3400 50 0000 C CNN F 2 "" H 5638 3250 50 0001 C CNN F 3 "~" H 5600 3400 50 0001 C CNN 1 5600 3400 -1 0 0 1 $EndComp Wire Wire Line 5600 3250 5600 3100 Connection ~ 5600 3100 Wire Wire Line 5600 3100 5100 3100 $Comp L project_oscillator:MMBFJ108 Q? U 1 1 5FD0B020 P 7200 2950 F 0 "Q?" V 6950 3050 50 0000 C CNN F 1 "MMBFJ108" V 7050 3200 50 0000 C CNN F 2 "Package_TO_SOT_SMD:SC-59" H 7400 3050 50 0001 C CNN F 3 "~" H 7200 2950 50 0001 C CNN 1 7200 2950 0 1 1 0 $EndComp $Comp L Comparator:LM311 U? U 1 1 5FD0D9EF P 8600 4150 F 0 "U?" H 8944 4196 50 0000 L CNN F 1 "LM311" H 8944 4105 50 0000 L CNN F 2 "" H 8600 4150 50 0001 C CNN F 3 "https://www.st.com/resource/en/datasheet/lm311.pdf" H 8600 4150 50 0001 C CNN 1 8600 4150 1 0 0 -1 $EndComp $Comp L project_oscillator:R R? U 1 1 5FD0FDBD P 8000 4050 F 0 "R?" V 7900 3950 50 0000 L CNN F 1 "15k" V 8100 3950 50 0000 L CNN F 2 "project_oscillator:R_0603" V 7930 4050 50 0001 C CNN F 3 "~" H 8000 4050 50 0001 C CNN 1 8000 4050 0 1 1 0 $EndComp $Comp L Device:C C? U 1 1 5FD103EE P 8500 3250 F 0 "C?" V 8250 3250 50 0000 C CNN F 1 "18p" V 8339 3250 50 0000 C CNN F 2 "" H 8538 3100 50 0001 C CNN F 3 "~" H 8500 3250 50 0001 C CNN 1 8500 3250 0 1 1 0 $EndComp $Comp L power:+12V #PWR? U 1 1 5FD110E9 P 8500 3850 F 0 "#PWR?" H 8500 3700 50 0001 C CNN F 1 "+12V" H 8515 4023 50 0000 C CNN F 2 "" H 8500 3850 50 0001 C CNN F 3 "" H 8500 3850 50 0001 C CNN 1 8500 3850 1 0 0 -1 $EndComp $Comp L power:-12V #PWR? U 1 1 5FD11853 P 8500 4500 F 0 "#PWR?" H 8500 4600 50 0001 C CNN F 1 "-12V" H 8515 4673 50 0000 C CNN F 2 "" H 8500 4500 50 0001 C CNN F 3 "" H 8500 4500 50 0001 C CNN 1 8500 4500 -1 0 0 1 $EndComp Wire Wire Line 8500 4500 8500 4450 Wire Wire Line 8600 4450 8500 4450 Connection ~ 8500 4450 $Comp L project_oscillator:R R? U 1 1 5FD13A4A P 7900 4450 F 0 "R?" V 7800 4350 50 0000 L CNN F 1 "10k" V 8000 4350 50 0000 L CNN F 2 "project_oscillator:R_0603" V 7830 4450 50 0001 C CNN F 3 "~" H 7900 4450 50 0001 C CNN 1 7900 4450 -1 0 0 1 $EndComp $Comp L project_oscillator:R R? U 1 1 5FD144EA P 8200 4450 F 0 "R?" V 8100 4350 50 0000 L CNN F 1 "15k" V 8300 4350 50 0000 L CNN F 2 "project_oscillator:R_0603" V 8130 4450 50 0001 C CNN F 3 "~" H 8200 4450 50 0001 C CNN 1 8200 4450 -1 0 0 1 $EndComp Wire Wire Line 7900 4300 7900 4250 Wire Wire Line 7900 4250 8200 4250 Wire Wire Line 8200 4300 8200 4250 Connection ~ 8200 4250 Wire Wire Line 8200 4250 8300 4250 $Comp L power:+12V #PWR? U 1 1 5FD17A08 P 8200 4600 F 0 "#PWR?" H 8200 4450 50 0001 C CNN F 1 "+12V" H 8215 4773 50 0000 C CNN F 2 "" H 8200 4600 50 0001 C CNN F 3 "" H 8200 4600 50 0001 C CNN 1 8200 4600 -1 0 0 1 $EndComp $Comp L power:GND #PWR? U 1 1 5FD18390 P 7900 4600 F 0 "#PWR?" H 7900 4350 50 0001 C CNN F 1 "GND" H 7905 4427 50 0000 C CNN F 2 "" H 7900 4600 50 0001 C CNN F 3 "" H 7900 4600 50 0001 C CNN 1 7900 4600 1 0 0 -1 $EndComp Wire Wire Line 8900 4150 9200 4150 Wire Wire Line 9200 4150 9200 3250 Wire Wire Line 9200 3250 8650 3250 Wire Wire Line 8350 3250 8200 3250 Wire Wire Line 8200 3250 8200 4050 Wire Wire Line 8200 4050 8300 4050 Wire Wire Line 8150 4050 8200 4050 Connection ~ 8200 4050 Wire Wire Line 7550 4050 7700 4050 Connection ~ 7700 4050 Wire Wire Line 7700 4050 7850 4050 $Comp L project_oscillator:R R? U 1 1 5FD1CD0A P 9200 4400 F 0 "R?" V 9100 4300 50 0000 L CNN F 1 "2.2k" V 9300 4300 50 0000 L CNN F 2 "project_oscillator:R_0603" V 9130 4400 50 0001 C CNN F 3 "~" H 9200 4400 50 0001 C CNN 1 9200 4400 -1 0 0 1 $EndComp $Comp L power:GND #PWR? U 1 1 5FD1D2A8 P 9200 4550 F 0 "#PWR?" H 9200 4300 50 0001 C CNN F 1 "GND" H 9205 4377 50 0000 C CNN F 2 "" H 9200 4550 50 0001 C CNN F 3 "" H 9200 4550 50 0001 C CNN 1 9200 4550 1 0 0 -1 $EndComp Wire Wire Line 9200 4250 9200 4150 Connection ~ 9200 4150 $Comp L Amplifier_Operational:TL084 U? U 1 1 5FD1F13C P 5900 3550 F 0 "U?" H 5900 3183 50 0000 C CNN F 1 "TL084" H 5900 3274 50 0000 C CNN F 2 "" H 5850 3650 50 0001 C CNN F 3 "http://www.ti.com/lit/ds/symlink/tl081.pdf" H 5950 3750 50 0001 C CNN 1 5900 3550 -1 0 0 1 $EndComp $Comp L Amplifier_Operational:TL084 U? U 2 1 5FD208B8 P 7250 4050 F 0 "U?" H 7250 3683 50 0000 C CNN F 1 "TL084" H 7250 3774 50 0000 C CNN F 2 "" H 7200 4150 50 0001 C CNN F 3 "http://www.ti.com/lit/ds/symlink/tl081.pdf" H 7300 4250 50 0001 C CNN 2 7250 4050 1 0 0 1 $EndComp $Comp L Amplifier_Operational:TL084 U? U 3 1 5FD2228D P 2550 3400 F 0 "U?" H 2550 3767 50 0000 C CNN F 1 "TL084" H 2550 3676 50 0000 C CNN F 2 "" H 2500 3500 50 0001 C CNN F 3 "http://www.ti.com/lit/ds/symlink/tl081.pdf" H 2600 3600 50 0001 C CNN 3 2550 3400 1 0 0 -1 $EndComp $Comp L Amplifier_Operational:TL084 U? U 4 1 5FD24120 P 1050 4400 F 0 "U?" H 1050 4767 50 0000 C CNN F 1 "TL084" H 1050 4676 50 0000 C CNN F 2 "" H 1000 4500 50 0001 C CNN F 3 "http://www.ti.com/lit/ds/symlink/tl081.pdf" H 1100 4600 50 0001 C CNN 4 1050 4400 1 0 0 -1 $EndComp $Comp L Amplifier_Operational:TL084 U? U 5 1 5FD25976 P 1650 1500 F 0 "U?" H 1608 1546 50 0000 L CNN F 1 "TL084" H 1608 1455 50 0000 L CNN F 2 "" H 1600 1600 50 0001 C CNN F 3 "http://www.ti.com/lit/ds/symlink/tl081.pdf" H 1700 1700 50 0001 C CNN 5 1650 1500 1 0 0 -1 $EndComp Connection ~ 5600 3550 Wire Wire Line 2850 3400 2950 3400 $Comp L project_oscillator:R R? U 1 1 5FD34817 P 2450 3900 F 0 "R?" V 2350 3800 50 0000 L CNN F 1 "21k" V 2550 3800 50 0000 L CNN F 2 "project_oscillator:R_0603" V 2380 3900 50 0001 C CNN F 3 "~" H 2450 3900 50 0001 C CNN 1 2450 3900 0 1 1 0 $EndComp $Comp L project_oscillator:R R? U 1 1 5FD34BC1 P 2100 4150 F 0 "R?" V 2000 4050 50 0000 L CNN F 1 "21k" V 2200 4050 50 0000 L CNN F 2 "project_oscillator:R_0603" V 2030 4150 50 0001 C CNN F 3 "~" H 2100 4150 50 0001 C CNN 1 2100 4150 -1 0 0 1 $EndComp $Comp L project_oscillator:R R? U 1 1 5FD35A52 P 1450 3600 F 0 "R?" V 1350 3500 50 0000 L CNN F 1 "100k" V 1550 3500 50 0000 L CNN F 2 "project_oscillator:R_0603" V 1380 3600 50 0001 C CNN F 3 "~" H 1450 3600 50 0001 C CNN 1 1450 3600 0 -1 -1 0 $EndComp $Comp L project_oscillator:R R? U 1 1 5FD3620C P 1450 3300 F 0 "R?" V 1350 3200 50 0000 L CNN F 1 "31k" V 1550 3200 50 0000 L CNN F 2 "project_oscillator:R_0603" V 1380 3300 50 0001 C CNN F 3 "~" H 1450 3300 50 0001 C CNN 1 1450 3300 0 -1 -1 0 $EndComp Wire Wire Line 2600 3900 2650 3900 Wire Wire Line 2950 3900 2950 3400 Connection ~ 2950 3400 Wire Wire Line 2950 3400 3100 3400 Wire Wire Line 2300 3900 2100 3900 Wire Wire Line 2100 3900 2100 3500 Wire Wire Line 2100 3500 2250 3500 Wire Wire Line 2100 4000 2100 3900 Connection ~ 2100 3900 $Comp L power:GND #PWR? U 1 1 5FD3B88E P 2100 4300 F 0 "#PWR?" H 2100 4050 50 0001 C CNN F 1 "GND" H 2105 4127 50 0000 C CNN F 2 "" H 2100 4300 50 0001 C CNN F 3 "" H 2100 4300 50 0001 C CNN 1 2100 4300 1 0 0 -1 $EndComp Wire Wire Line 1600 3600 1850 3600 Wire Wire Line 1850 3600 1850 3300 Wire Wire Line 1850 3300 2250 3300 Wire Wire Line 1850 3300 1600 3300 Connection ~ 1850 3300 $Comp L power:+12V #PWR? U 1 1 5FD3F9FB P 1200 3600 F 0 "#PWR?" H 1200 3450 50 0001 C CNN F 1 "+12V" H 1215 3773 50 0000 C CNN F 2 "" H 1200 3600 50 0001 C CNN F 3 "" H 1200 3600 50 0001 C CNN 1 1200 3600 -1 0 0 1 $EndComp Wire Wire Line 1200 3600 1300 3600 Wire Wire Line 7200 2750 7200 2550 Wire Wire Line 7200 2550 9200 2550 Wire Wire Line 9200 2550 9200 3250 Connection ~ 9200 3250 $Comp L project_oscillator:PV36W RV? U 1 1 5FD4DD80 P 2800 3900 F 0 "RV?" V 2593 3900 50 0000 C CNN F 1 "PV36W" V 2684 3900 50 0000 C CNN F 2 "project_oscillator:PV36W" H 2800 3900 50 0001 C CNN F 3 "~" H 2800 3900 50 0001 C CNN 1 2800 3900 0 1 1 0 $EndComp Wire Wire Line 2800 4050 2950 4050 Wire Wire Line 2950 4050 2950 3900 Connection ~ 2950 3900 $Comp L project_oscillator:PV36W RV? U 1 1 5FD50DAF P 1150 3300 F 0 "RV?" V 1035 3300 50 0000 C CNN F 1 "PV36W" V 944 3300 50 0000 C CNN F 2 "project_oscillator:PV36W" H 1150 3300 50 0001 C CNN F 3 "~" H 1150 3300 50 0001 C CNN 1 1150 3300 0 -1 -1 0 $EndComp Wire Wire Line 1000 3300 1000 3150 Wire Wire Line 1000 3150 1150 3150 $Comp L Device:C C? U 1 1 5FD53C28 P 6650 2200 F 0 "C?" V 6400 2200 50 0000 C CNN F 1 "1u" V 6489 2200 50 0000 C CNN F 2 "" H 6688 2050 50 0001 C CNN F 3 "~" H 6650 2200 50 0001 C CNN 1 6650 2200 0 1 1 0 $EndComp Wire Wire Line 6300 2200 6500 2200 Connection ~ 6300 2200 Wire Wire Line 7050 2200 6800 2200 Text Label 6850 2200 0 50 ~ 0 FM $EndSCHEMATC