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 4900 3000 F 0 "R?" H 4970 3046 50 0000 L CNN F 1 "4R1" H 4970 2955 50 0000 L CNN F 2 "project_oscillator:R_0603" V 4830 3000 50 0001 C CNN F 3 "~" H 4900 3000 50 0001 C CNN 1 4900 3000 1 0 0 -1 $EndComp $Comp L project_oscillator:PT100 TH? U 1 1 5FCD1335 P 4900 2650 F 0 "TH?" H 4998 2696 50 0000 L CNN F 1 "PT100" H 4998 2605 50 0000 L CNN F 2 "project_oscillator:R_0603" H 4900 2700 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 4900 2700 50 0001 C CNN 1 4900 2650 1 0 0 -1 $EndComp $Comp L project_oscillator:R R? U 1 1 5FCD2027 P 4550 2300 F 0 "R?" V 4450 2200 50 0000 L CNN F 1 "10k" V 4650 2200 50 0000 L CNN F 2 "project_oscillator:R_0603" V 4480 2300 50 0001 C CNN F 3 "~" H 4550 2300 50 0001 C CNN 1 4550 2300 0 1 1 0 $EndComp $Comp L project_oscillator:BCM847 Q? U 1 1 5FCD33C7 P 6000 2300 F 0 "Q?" H 6000 2665 50 0000 C CNN F 1 "BCM847" H 6000 2574 50 0000 C CNN F 2 "project_oscillator:SOT-457, SC-74" H 5950 2150 50 0001 C CNN F 3 "" H 5950 2150 50 0001 C CNN 1 6000 2300 1 0 0 -1 $EndComp Wire Wire Line 5700 2150 5550 2150 Wire Wire Line 5550 2150 5550 1800 Wire Wire Line 5550 1800 6500 1800 Wire Wire Line 6500 1800 6500 2450 Wire Wire Line 6500 2450 6300 2450 Wire Wire Line 5600 2450 5700 2450 $Comp L power:GND #PWR? U 1 1 5FCD7D2A P 6400 2500 F 0 "#PWR?" H 6400 2250 50 0001 C CNN F 1 "GND" H 6405 2327 50 0000 C CNN F 2 "" H 6400 2500 50 0001 C CNN F 3 "" H 6400 2500 50 0001 C CNN 1 6400 2500 1 0 0 -1 $EndComp Wire Wire Line 5600 2850 6500 2850 Wire Wire Line 5600 2450 5600 2850 Wire Wire Line 6400 2500 6400 2300 Wire Wire Line 6400 2300 6300 2300 $Comp L power:+12V #PWR? U 1 1 5FCD9521 P 6400 1450 F 0 "#PWR?" H 6400 1300 50 0001 C CNN F 1 "+12V" H 6415 1623 50 0000 C CNN F 2 "" H 6400 1450 50 0001 C CNN F 3 "" H 6400 1450 50 0001 C CNN 1 6400 1450 1 0 0 -1 $EndComp $Comp L project_oscillator:R R? U 1 1 5FCDA509 P 6400 1600 F 0 "R?" H 6470 1646 50 0000 L CNN F 1 "R" H 6470 1555 50 0000 L CNN F 2 "project_oscillator:R_0603" V 6330 1600 50 0001 C CNN F 3 "~" H 6400 1600 50 0001 C CNN 1 6400 1600 1 0 0 -1 $EndComp Wire Wire Line 6400 1750 6400 2000 Wire Wire Line 6400 2150 6300 2150 $Comp L power:GND #PWR? U 1 1 5FCDB261 P 4900 3150 F 0 "#PWR?" H 4900 2900 50 0001 C CNN F 1 "GND" H 4905 2977 50 0000 C CNN F 2 "" H 4900 3150 50 0001 C CNN F 3 "" H 4900 3150 50 0001 C CNN 1 4900 3150 1 0 0 -1 $EndComp $Comp L project_oscillator:R R? U 1 1 5FCDBDDA P 6750 2450 F 0 "R?" V 6650 2350 50 0000 L CNN F 1 "91R" V 6850 2350 50 0000 L CNN F 2 "project_oscillator:R_0603" V 6680 2450 50 0001 C CNN F 3 "~" H 6750 2450 50 0001 C CNN 1 6750 2450 0 1 1 0 $EndComp Wire Wire Line 6500 2450 6600 2450 Connection ~ 6500 2450 $Comp L Amplifier_Operational:TL082 U? U 1 1 5FCDFD33 P 7200 2450 F 0 "U?" H 7200 2083 50 0000 C CNN F 1 "TL082" H 7200 2174 50 0000 C CNN F 2 "" H 7200 2450 50 0001 C CNN F 3 "http://www.ti.com/lit/ds/symlink/tl081.pdf" H 7200 2450 50 0001 C CNN 1 7200 2450 -1 0 0 1 $EndComp $Comp L Amplifier_Operational:TL082 U? U 2 1 5FCE13DF P 10200 1400 F 0 "U?" H 10200 1767 50 0000 C CNN F 1 "TL082" H 10200 1676 50 0000 C CNN F 2 "" H 10200 1400 50 0001 C CNN F 3 "http://www.ti.com/lit/ds/symlink/tl081.pdf" H 10200 1400 50 0001 C CNN 2 10200 1400 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 7600 2600 F 0 "#PWR?" H 7600 2350 50 0001 C CNN F 1 "GND" H 7605 2427 50 0000 C CNN F 2 "" H 7600 2600 50 0001 C CNN F 3 "" H 7600 2600 50 0001 C CNN 1 7600 2600 1 0 0 -1 $EndComp Wire Wire Line 7500 2550 7600 2550 Wire Wire Line 7600 2550 7600 2600 Wire Wire Line 7500 2350 7600 2350 Wire Wire Line 7600 2350 7600 2000 Wire Wire Line 7600 2000 6400 2000 Connection ~ 6400 2000 Wire Wire Line 6400 2000 6400 2150 Text Label 5950 2850 0 50 ~ 0 I_CTRL Wire Wire Line 4700 2300 4900 2300 Wire Wire Line 4900 2300 4900 2500 Connection ~ 4900 2300 Wire Wire Line 4900 2300 5700 2300 Wire Wire Line 4900 2850 4900 2800 $EndSCHEMATC