electronics/shimatta-hpa
1
0
Fork 0
mirror of https://git.shimatta.de/pcb/headphone-amp.git synced 2024-11-25 03:25:06 +01:00
Code Issues Releases Wiki Activity

removed 120uF from power supply, added transistor dropout circuit to reduce noise

Browse Source
This commit is contained in:
Mario Hüttel 2017-07-28 19:00:41 +02:00
parent c51e890f1c
commit 6daf4ae119
3 changed files with 935 additions and 574 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
headphone-amp-cache.lib
View File

@ -394,6 +394,44 @@ X PGND 19 850 -950 200 L 50 50 1 1 W
ENDDRAW
ENDDEF
#
# Q_NPN_CBE
#
DEF Q_NPN_CBE Q 0 0 Y N 1 F N
F0 "Q" 200 50 50 H V L CNN
F1 "Q_NPN_CBE" 200 -50 50 H V L CNN
F2 "" 200 100 50 H I C CNN
F3 "" 0 0 50 H I C CNN
DRAW
C 50 0 111 0 1 10 N
P 2 0 1 0 25 25 100 100 N
P 3 0 1 0 25 -25 100 -100 100 -100 N
P 3 0 1 20 25 75 25 -75 25 -75 N
P 5 0 1 0 50 -70 70 -50 90 -90 50 -70 50 -70 F
X C 1 100 200 100 D 50 50 1 1 P
X B 2 -200 0 225 R 50 50 1 1 I
X E 3 100 -200 100 U 50 50 1 1 P
ENDDRAW
ENDDEF
#
# Q_PNP_CBE
#
DEF Q_PNP_CBE Q 0 0 Y N 1 F N
F0 "Q" 200 50 50 H V L CNN
F1 "Q_PNP_CBE" 200 -50 50 H V L CNN
F2 "" 200 100 50 H I C CNN
F3 "" 0 0 50 H I C CNN
DRAW
C 50 0 111 0 1 10 N
P 2 0 1 0 25 25 100 100 N
P 3 0 1 0 25 -25 100 -100 100 -100 N
P 3 0 1 20 25 75 25 -75 25 -75 N
P 5 0 1 0 90 -70 70 -90 50 -50 90 -70 90 -70 F
X C 1 100 200 100 D 50 50 1 1 P
X B 2 -200 0 225 R 50 50 1 1 I
X E 3 100 -200 100 U 50 50 1 1 P
ENDDRAW
ENDDEF
#
# R
#
DEF R R 0 0 N Y 1 F N

1211
headphone-amp.kicad_pcb
View File

File diff suppressed because it is too large Load Diff

260
headphone-amp.sch
View File

@ -92,23 +92,23 @@ $EndComp
$Comp
L +12V #PWR03
U 1 1 5930547F
P 4850 650
F 0 "#PWR03" H 4850 500 50 0001 C CNN
F 1 "+12V" H 4850 790 50 0000 C CNN
F 2 "" H 4850 650 50 0001 C CNN
F 3 "" H 4850 650 50 0001 C CNN
1 4850 650
P 5200 650
F 0 "#PWR03" H 5200 500 50 0001 C CNN
F 1 "+12V" H 5200 790 50 0000 C CNN
F 2 "" H 5200 650 50 0001 C CNN
F 3 "" H 5200 650 50 0001 C CNN
1 5200 650
1 0 0 -1
$EndComp
$Comp
L -12V #PWR31
L -12V #PWR35
U 1 1 59305497
P 4850 1450
F 0 "#PWR31" H 4850 1550 50 0001 C CNN
F 1 "-12V" H 4850 1600 50 0000 C CNN
F 2 "" H 4850 1450 50 0001 C CNN
F 3 "" H 4850 1450 50 0001 C CNN
1 4850 1450
P 5200 1450
F 0 "#PWR35" H 5200 1550 50 0001 C CNN
F 1 "-12V" H 5200 1600 50 0000 C CNN
F 2 "" H 5200 1450 50 0001 C CNN
F 3 "" H 5200 1450 50 0001 C CNN
1 5200 1450
-1 0 0 1
$EndComp
$Comp
@ -211,71 +211,47 @@ F 3 "" H 4050 1250 50 0001 C CNN
1 0 0 -1
$EndComp
$Comp
L L_Small L4
U 1 1 59305E94
P 4400 1450
F 0 "L4" V 4350 1500 50 0000 L CNN
F 1 "120u" V 4350 1300 50 0000 L CNN
F 2 "Resistors_SMD:R_1812_HandSoldering" H 4400 1450 50 0001 C CNN
F 3 "" H 4400 1450 50 0001 C CNN
F 4 "DLV-121-M2.0" V 4400 1450 60 0001 C CNN "No."
1 4400 1450
0 -1 -1 0
$EndComp
$Comp
L L_Small L3
U 1 1 593060EE
P 4400 650
F 0 "L3" V 4350 700 50 0000 L CNN
F 1 "120u" V 4350 500 50 0000 L CNN
F 2 "Resistors_SMD:R_1812_HandSoldering" H 4400 650 50 0001 C CNN
F 3 "" H 4400 650 50 0001 C CNN
F 4 "DLV-121-M2.0" V 4400 650 60 0001 C CNN "No."
1 4400 650
0 -1 -1 0
$EndComp
$Comp
L C C24
U 1 1 59306303
P 4700 1250
F 0 "C24" H 4725 1350 50 0000 L CNN
F 1 "100n" H 4725 1150 50 0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 4738 1100 50 0001 C CNN
F 3 "" H 4700 1250 50 0001 C CNN
1 4700 1250
P 5050 1250
F 0 "C24" H 5075 1350 50 0000 L CNN
F 1 "100n" H 5075 1150 50 0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 5088 1100 50 0001 C CNN
F 3 "" H 5050 1250 50 0001 C CNN
1 5050 1250
1 0 0 -1
$EndComp
$Comp
L C C23
U 1 1 59306354
P 4700 850
F 0 "C23" H 4725 950 50 0000 L CNN
F 1 "100n" H 4725 750 50 0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 4738 700 50 0001 C CNN
F 3 "" H 4700 850 50 0001 C CNN
1 4700 850
P 5050 850
F 0 "C23" H 5075 950 50 0000 L CNN
F 1 "100n" H 5075 750 50 0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 5088 700 50 0001 C CNN
F 3 "" H 5050 850 50 0001 C CNN
1 5050 850
1 0 0 -1
$EndComp
$Comp
L CP C25
U 1 1 593064DB
P 5000 850
F 0 "C25" H 5025 950 50 0000 L CNN
F 1 "100u" H 5025 750 50 0000 L CNN
F 2 "Capacitors_THT:C_Radial_D8_L11.5_P3.5" H 5038 700 50 0001 C CNN
F 3 "" H 5000 850 50 0001 C CNN
1 5000 850
P 5350 850
F 0 "C25" H 5375 950 50 0000 L CNN
F 1 "100u" H 5375 750 50 0000 L CNN
F 2 "Capacitors_THT:C_Radial_D8_L11.5_P3.5" H 5388 700 50 0001 C CNN
F 3 "" H 5350 850 50 0001 C CNN
1 5350 850
1 0 0 -1
$EndComp
$Comp
L CP C26
U 1 1 59306550
P 5000 1250
F 0 "C26" H 5025 1350 50 0000 L CNN
F 1 "100u" H 5025 1150 50 0000 L CNN
F 2 "Capacitors_THT:C_Radial_D8_L11.5_P3.5" H 5038 1100 50 0001 C CNN
F 3 "" H 5000 1250 50 0001 C CNN
1 5000 1250
P 5350 1250
F 0 "C26" H 5375 1350 50 0000 L CNN
F 1 "100u" H 5375 1150 50 0000 L CNN
F 2 "Capacitors_THT:C_Radial_D8_L11.5_P3.5" H 5388 1100 50 0001 C CNN
F 3 "" H 5350 1250 50 0001 C CNN
1 5350 1250
1 0 0 -1
$EndComp
$Comp
@ -292,12 +268,12 @@ $EndComp
$Comp
L GNDPWR #PWR08
U 1 1 59307337
P 5500 1050
F 0 "#PWR08" H 5500 850 50 0001 C CNN
F 1 "GNDPWR" H 5500 920 50 0000 C CNN
F 2 "" H 5500 1000 50 0001 C CNN
F 3 "" H 5500 1000 50 0001 C CNN
1 5500 1050
P 5850 1050
F 0 "#PWR08" H 5850 850 50 0001 C CNN
F 1 "GNDPWR" H 5850 920 50 0000 C CNN
F 2 "" H 5850 1000 50 0001 C CNN
F 3 "" H 5850 1000 50 0001 C CNN
1 5850 1050
1 0 0 -1
$EndComp
$Comp
@ -938,10 +914,10 @@ F 3 "" H 6050 850 50 0001 C CNN
1 0 0 -1
$EndComp
$Comp
L -12V #PWR48
L -12V #PWR50
U 1 1 59361859
P 7850 850
F 0 "#PWR48" H 7850 950 50 0001 C CNN
F 0 "#PWR50" H 7850 950 50 0001 C CNN
F 1 "-12V" H 7850 1000 50 0000 C CNN
F 2 "" H 7850 850 50 0001 C CNN
F 3 "" H 7850 850 50 0001 C CNN
@ -1193,10 +1169,10 @@ F 3 "" H 6600 3300 50 0001 C CNN
1 0 0 -1
$EndComp
$Comp
L -12V #PWR50
L -12V #PWR52
U 1 1 59374872
P 9050 3400
F 0 "#PWR50" H 9050 3500 50 0001 C CNN
F 0 "#PWR52" H 9050 3500 50 0001 C CNN
F 1 "-12V" H 9050 3550 50 0000 C CNN
F 2 "" H 9050 3400 50 0001 C CNN
F 3 "" H 9050 3400 50 0001 C CNN
@ -1345,7 +1321,7 @@ Wire Notes Line
Wire Notes Line
1150 1700 650 1700
Wire Wire Line
3600 1050 5500 1050
3600 1050 5850 1050
Wire Wire Line
1250 1000 2500 1000
Wire Wire Line
@ -1386,33 +1362,33 @@ Wire Wire Line
4050 1450 4050 1400
Connection ~ 4050 1450
Wire Wire Line
3600 1450 4300 1450
3600 1450 4400 1450
Wire Wire Line
3600 650 4300 650
3600 650 4350 650
Wire Wire Line
4500 650 5000 650
4750 650 5350 650
Wire Wire Line
4500 1450 5000 1450
4800 1450 5350 1450
Wire Wire Line
4700 1000 4700 1100
Connection ~ 4700 1050
5050 1000 5050 1100
Connection ~ 5050 1050
Wire Wire Line
4700 1450 4700 1400
5050 1450 5050 1400
Wire Wire Line
5000 1450 5000 1400
Connection ~ 4700 1450
5350 1450 5350 1400
Connection ~ 5050 1450
Wire Wire Line
5000 1000 5000 1100
Connection ~ 5000 1050
5350 1000 5350 1100
Connection ~ 5350 1050
Wire Wire Line
5000 650 5000 700
5350 650 5350 700
Wire Wire Line
4700 700 4700 650
Connection ~ 4700 650
5050 700 5050 650
Connection ~ 5050 650
Wire Wire Line
2500 1100 2500 1750
Connection ~ 4850 1450
Connection ~ 4850 650
Connection ~ 5200 1450
Connection ~ 5200 650
Wire Wire Line
2050 2000 2650 2000
Wire Wire Line
@ -1969,7 +1945,7 @@ Connection ~ 7550 4600
Wire Wire Line
7400 5000 7400 5050
Wire Wire Line
7550 5050 7550 4950
7550 4950 7550 5050
$Comp
L GNDPWR #PWR047
U 1 1 5938F060
@ -2101,4 +2077,110 @@ Wire Wire Line
3400 2550 3750 2550
Wire Wire Line
3750 2550 3750 2700
$Comp
L Q_NPN_CBE Q1
U 1 1 597BB5E7
P 4550 750
F 0 "Q1" V 4800 900 50 0000 L CNN
F 1 "Q_NPN_CBE" V 4800 350 50 0000 L CNN
F 2 "TO_SOT_Packages_THT:TO-92_Molded_Wide_Oval" H 4750 850 50 0001 C CNN
F 3 "" H 4550 750 50 0001 C CNN
1 4550 750
0 -1 -1 0
$EndComp
$Comp
L R R19
U 1 1 597BC448
P 4300 800
F 0 "R19" V 4380 800 50 0000 C CNN
F 1 "1k" V 4300 800 50 0000 C CNN
F 2 "Resistors_SMD:R_0603_HandSoldering" V 4230 800 50 0001 C CNN
F 3 "" H 4300 800 50 0001 C CNN
1 4300 800
1 0 0 -1
$EndComp
Connection ~ 4300 650
Wire Wire Line
4300 950 4550 950
Wire Wire Line
4350 950 4350 2050
Connection ~ 4350 950
$Comp
L Q_PNP_CBE Q2
U 1 1 597BCDB0
P 4600 1550
F 0 "Q2" H 4800 1600 50 0000 L CNN
F 1 "Q_PNP_CBE" H 4800 1500 50 0000 L CNN
F 2 "TO_SOT_Packages_THT:TO-92_Molded_Wide_Oval" H 4800 1650 50 0001 C CNN
F 3 "" H 4600 1550 50 0001 C CNN
1 4600 1550
0 -1 -1 0
$EndComp
$Comp
L R R20
U 1 1 597BE8B7
P 4350 1800
F 0 "R20" V 4430 1800 50 0000 C CNN
F 1 "1k" V 4350 1800 50 0000 C CNN
F 2 "Resistors_SMD:R_0603_HandSoldering" V 4280 1800 50 0001 C CNN
F 3 "" H 4350 1800 50 0001 C CNN
1 4350 1800
0 1 1 0
$EndComp
Wire Wire Line
4600 2050 4600 1750
Wire Wire Line
4500 1800 4600 1800
Connection ~ 4600 1800
Wire Wire Line
4200 1800 4200 1450
Connection ~ 4200 1450
$Comp
L C C37
U 1 1 597BF3DD
P 4350 2200
F 0 "C37" H 4375 2300 50 0000 L CNN
F 1 "1u" H 4375 2100 50 0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 4388 2050 50 0001 C CNN
F 3 "" H 4350 2200 50 0001 C CNN
1 4350 2200
1 0 0 -1
$EndComp
$Comp
L C C38
U 1 1 597BF53A
P 4600 2200
F 0 "C38" H 4625 2300 50 0000 L CNN
F 1 "1u" H 4625 2100 50 0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 4638 2050 50 0001 C CNN
F 3 "" H 4600 2200 50 0001 C CNN
1 4600 2200
1 0 0 -1
$EndComp
Wire Wire Line
4350 2350 4350 2400
Wire Wire Line
4600 2400 4600 2350
$Comp
L GNDPWR #PWR049
U 1 1 597BF9A7
P 4600 2400
F 0 "#PWR049" H 4600 2200 50 0001 C CNN
F 1 "GNDPWR" H 4600 2270 50 0000 C CNN
F 2 "" H 4600 2350 50 0001 C CNN
F 3 "" H 4600 2350 50 0001 C CNN
1 4600 2400
1 0 0 -1
$EndComp
$Comp
L GNDPWR #PWR050
U 1 1 597BFABA
P 4350 2400
F 0 "#PWR050" H 4350 2200 50 0001 C CNN
F 1 "GNDPWR" H 4350 2270 50 0000 C CNN
F 2 "" H 4350 2350 50 0001 C CNN
F 3 "" H 4350 2350 50 0001 C CNN
1 4350 2400
1 0 0 -1
$EndComp
$EndSCHEMATC