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Copy pathEmitter_follower.sch-bak
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Emitter_follower.sch-bak
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EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 18 23
Title "rata"
Date "2021-09-25"
Rev "1.0"
Comp "Yuriy Volkov"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L rata-rescue:BC847-Transistor_BJT Q?
U 1 1 60F64272
P 6900 3750
AR Path="/609C9D41/60F64272" Ref="Q?" Part="1"
AR Path="/60B39FE1/60F64272" Ref="Q?" Part="1"
AR Path="/609FED99/60F64272" Ref="Q?" Part="1"
AR Path="/60F18EC1/60F64272" Ref="Q?" Part="1"
AR Path="/60F18EC1/60F620C8/60F64272" Ref="Q9" Part="1"
AR Path="/60F18EC1/60F77249/60F64272" Ref="Q12" Part="1"
AR Path="/60F18EC1/60F77470/60F64272" Ref="Q15" Part="1"
AR Path="/60F18EC1/60F77508/60F64272" Ref="Q18" Part="1"
F 0 "Q9" H 7091 3796 50 0000 L CNN
F 1 "BC847" H 7091 3705 50 0000 L CNN
F 2 "Package_TO_SOT_SMD:SOT-23" H 7100 3675 50 0001 L CIN
F 3 "http://www.infineon.com/dgdl/Infineon-BC847SERIES_BC848SERIES_BC849SERIES_BC850SERIES-DS-v01_01-en.pdf?fileId=db3a304314dca389011541d4630a1657" H 6900 3750 50 0001 L CNN
1 6900 3750
1 0 0 -1
$EndComp
$Comp
L rata-rescue:R-Device R?
U 1 1 60F64278
P 5500 4750
AR Path="/60F64278" Ref="R?" Part="1"
AR Path="/60B39FE1/60F64278" Ref="R?" Part="1"
AR Path="/609FED99/60F64278" Ref="R?" Part="1"
AR Path="/60F18EC1/60F64278" Ref="R?" Part="1"
AR Path="/60F18EC1/60F620C8/60F64278" Ref="R60" Part="1"
AR Path="/60F18EC1/60F77249/60F64278" Ref="R64" Part="1"
AR Path="/60F18EC1/60F77470/60F64278" Ref="R68" Part="1"
AR Path="/60F18EC1/60F77508/60F64278" Ref="R72" Part="1"
F 0 "R60" H 5570 4796 50 0000 L CNN
F 1 "56k" H 5570 4705 50 0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder" V 5430 4750 50 0001 C CNN
F 3 "~" H 5500 4750 50 0001 C CNN
1 5500 4750
1 0 0 -1
$EndComp
$Comp
L rata-rescue:R-Device R?
U 1 1 60F6427E
P 5250 4500
AR Path="/60F6427E" Ref="R?" Part="1"
AR Path="/60B39FE1/60F6427E" Ref="R?" Part="1"
AR Path="/609FED99/60F6427E" Ref="R?" Part="1"
AR Path="/60F18EC1/60F6427E" Ref="R?" Part="1"
AR Path="/60F18EC1/60F620C8/60F6427E" Ref="R59" Part="1"
AR Path="/60F18EC1/60F77249/60F6427E" Ref="R63" Part="1"
AR Path="/60F18EC1/60F77470/60F6427E" Ref="R67" Part="1"
AR Path="/60F18EC1/60F77508/60F6427E" Ref="R71" Part="1"
F 0 "R59" V 5350 4450 50 0000 L CNN
F 1 "4.7k" V 5150 4400 50 0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder" V 5180 4500 50 0001 C CNN
F 3 "~" H 5250 4500 50 0001 C CNN
1 5250 4500
0 -1 -1 0
$EndComp
$Comp
L rata-rescue:BC857-Transistor_BJT Q?
U 1 1 60F64284
P 6900 4250
AR Path="/60F18EC1/60F64284" Ref="Q?" Part="1"
AR Path="/60F18EC1/60F620C8/60F64284" Ref="Q10" Part="1"
AR Path="/60F18EC1/60F77249/60F64284" Ref="Q13" Part="1"
AR Path="/60F18EC1/60F77470/60F64284" Ref="Q16" Part="1"
AR Path="/60F18EC1/60F77508/60F64284" Ref="Q19" Part="1"
F 0 "Q10" H 7091 4204 50 0000 L CNN
F 1 "BC857" H 7091 4295 50 0000 L CNN
F 2 "Package_TO_SOT_SMD:SOT-23" H 7100 4175 50 0001 L CIN
F 3 "https://www.onsemi.com/pub/Collateral/BC860-D.pdf" H 6900 4250 50 0001 L CNN
1 6900 4250
1 0 0 1
$EndComp
Text Notes 7700 2500 2 197 ~ 0
Double emitter follower
$Comp
L rata-rescue:BC847-Transistor_BJT Q?
U 1 1 60F64A50
P 5900 4500
AR Path="/609C9D41/60F64A50" Ref="Q?" Part="1"
AR Path="/60B39FE1/60F64A50" Ref="Q?" Part="1"
AR Path="/609FED99/60F64A50" Ref="Q?" Part="1"
AR Path="/60F18EC1/60F64A50" Ref="Q?" Part="1"
AR Path="/60F18EC1/60F620C8/60F64A50" Ref="Q8" Part="1"
AR Path="/60F18EC1/60F77249/60F64A50" Ref="Q11" Part="1"
AR Path="/60F18EC1/60F77470/60F64A50" Ref="Q14" Part="1"
AR Path="/60F18EC1/60F77508/60F64A50" Ref="Q17" Part="1"
F 0 "Q8" H 6091 4546 50 0000 L CNN
F 1 "BC847" H 6091 4455 50 0000 L CNN
F 2 "Package_TO_SOT_SMD:SOT-23" H 6100 4425 50 0001 L CIN
F 3 "http://www.infineon.com/dgdl/Infineon-BC847SERIES_BC848SERIES_BC849SERIES_BC850SERIES-DS-v01_01-en.pdf?fileId=db3a304314dca389011541d4630a1657" H 5900 4500 50 0001 L CNN
1 5900 4500
1 0 0 -1
$EndComp
$Comp
L rata-rescue:R-Device R?
U 1 1 60F68AA3
P 6350 4000
AR Path="/60F68AA3" Ref="R?" Part="1"
AR Path="/60B39FE1/60F68AA3" Ref="R?" Part="1"
AR Path="/609FED99/60F68AA3" Ref="R?" Part="1"
AR Path="/60F18EC1/60F68AA3" Ref="R?" Part="1"
AR Path="/60F18EC1/60F620C8/60F68AA3" Ref="R62" Part="1"
AR Path="/60F18EC1/60F77249/60F68AA3" Ref="R66" Part="1"
AR Path="/60F18EC1/60F77470/60F68AA3" Ref="R70" Part="1"
AR Path="/60F18EC1/60F77508/60F68AA3" Ref="R74" Part="1"
F 0 "R62" V 6450 3950 50 0000 L CNN
F 1 "4.7k" V 6250 3900 50 0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder" V 6280 4000 50 0001 C CNN
F 3 "~" H 6350 4000 50 0001 C CNN
1 6350 4000
0 -1 -1 0
$EndComp
$Comp
L rata-rescue:R-Device R?
U 1 1 60F6906A
P 6000 3750
AR Path="/60F6906A" Ref="R?" Part="1"
AR Path="/60B39FE1/60F6906A" Ref="R?" Part="1"
AR Path="/609FED99/60F6906A" Ref="R?" Part="1"
AR Path="/60F18EC1/60F6906A" Ref="R?" Part="1"
AR Path="/60F18EC1/60F620C8/60F6906A" Ref="R61" Part="1"
AR Path="/60F18EC1/60F77249/60F6906A" Ref="R65" Part="1"
AR Path="/60F18EC1/60F77470/60F6906A" Ref="R69" Part="1"
AR Path="/60F18EC1/60F77508/60F6906A" Ref="R73" Part="1"
F 0 "R61" H 6070 3796 50 0000 L CNN
F 1 "4.7k" H 6070 3705 50 0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder" V 5930 3750 50 0001 C CNN
F 3 "~" H 6000 3750 50 0001 C CNN
1 6000 3750
1 0 0 -1
$EndComp
Text HLabel 4500 3500 0 50 Input ~ 0
+VCC
Text HLabel 4500 5000 0 50 Input ~ 0
GND
Text HLabel 8000 4000 2 50 Output ~ 0
OUT
Text HLabel 4500 4500 0 50 Input ~ 0
IN
Wire Wire Line
4500 5000 5500 5000
Wire Wire Line
7000 5000 7000 4450
Wire Wire Line
5500 4900 5500 5000
Connection ~ 5500 5000
Wire Wire Line
5500 5000 6000 5000
Wire Wire Line
4500 3500 6000 3500
Wire Wire Line
7000 3500 7000 3550
Wire Wire Line
6000 3600 6000 3500
Connection ~ 6000 3500
Wire Wire Line
6000 3500 7000 3500
Wire Wire Line
7000 3950 7000 4000
Wire Wire Line
8000 4000 7000 4000
Connection ~ 7000 4000
Wire Wire Line
7000 4000 7000 4050
Wire Wire Line
6700 3750 6600 3750
Wire Wire Line
6600 3750 6600 4000
Wire Wire Line
6600 4250 6700 4250
Wire Wire Line
6500 4000 6600 4000
Connection ~ 6600 4000
Wire Wire Line
6600 4000 6600 4250
Wire Wire Line
6000 3900 6000 4000
Wire Wire Line
6200 4000 6000 4000
Connection ~ 6000 4000
Wire Wire Line
6000 4000 6000 4300
Wire Wire Line
5700 4500 5500 4500
Wire Wire Line
5500 4600 5500 4500
Connection ~ 5500 4500
Wire Wire Line
5500 4500 5400 4500
Wire Wire Line
5100 4500 4500 4500
Wire Wire Line
6000 4700 6000 5000
Connection ~ 6000 5000
Wire Wire Line
6000 5000 7000 5000
$EndSCHEMATC