HardLabs

Class AB Stereo Amp SMD

alexandrebobkov·KiCAD-Projects·ClassAB_StereoAmp_SMD/Class AB Stereo Amp SMD.kicad_pcb

Class AB Stereo Amp SMD PCB layout, top view — open source board by alexandrebobkov

About the Class AB Stereo Amp SMD PCB

Class AB Stereo Amp SMD is an open source PCB design by alexandrebobkov, published on GitHub under the MIT license. It is a 2-layer board measuring 100 × 100 mm, with 78 components from 44 distinct parts.

Other key parts include the NE5532. By type, the board carries 22 resistors, 16 capacitors, 11 test points, 9 connectors, 6 diodes and 5 transistors.

It belongs with the audio designs in this gallery.

From the project

KiCAD PBC projects

This project is a fork of classabstereoampsmd project created by Hussam Al-Hertani.*

A Class AB audio amplifier is a type of hybrid linear amplifier that combines characteristics of Class A (low distortion, high efficiency at low power) and Class B (higher efficiency at higher power) to achieve a balance between efficiency and distortion performance. Unlike pure Class A (100% conduction) or Class B (50% conduction), Class AB amplifiers operate with both transistors conducting partially during signal cycles, reducing crossover distortion while improving efficiency compared to Class A

Class AB Stereo Amp SMD, from the project README
From the project README

Main components on the Class AB Stereo Amp SMD

NE5532

Class AB Stereo Amp SMD bill of materials (BOM)

78 components, 44 distinct parts.

QtyPartRefs
3
NE5532
U1, U2, U3
2
NJVMJB42CT4G
Q1, Q3
2
NJVMJB41CT4G
Q2, Q4
1
DMP6180SK3
Q5
1
Screw_Terminal_01x02
J1
1
Barrel_Jack_Switch
J2
1
AudioJack3
J3
1
PWR OUT
J5
1
Conn_Coaxial_x2
J6
1
ROUT
J7
2
GND
J8, J9
1
LOUT
J10
1
Q2
HS1
1
Q4
HS2
1
Q1
HS3
1
Q3
HS4
1
10k
RV1
1
SW_SPDT
SW1
1
VCC
TP1
1
GND
TP2
Show 24 more
QtyPartRefs
1
RIN
TP3
1
LIN
TP4
1
VCC_DIV_2
TP5
1
RIN1
TP6
1
LIN1
TP7
1
RIN2
TP8
1
LIN2
TP9
1
ROUT
TP10
1
LOUT
TP11
4
1N4148W
D1, D2, D3, D4
1
MMSZ52XXB
D5
1
LED
D6
3
1000u
C1, C10, C13
1
10u
C2
8
1u
C3, C4, C5, C6, C7, C14, C15, C16
4
33u
C8, C9, C11, C12
1
100k
R1
1
2.4k
R2
4
22k
R3, R4, R5, R6
2
10k
R7, R11
2
220k
R8, R12
4
47k
R9, R10, R13, R14
4
3k
R15, R16, R19, R20
4
1
R17, R18, R21, R22

Class AB Stereo Amp SMD design files

The KiCad project lives in the alexandrebobkov/KiCAD-Projects repository on GitHub; these links point at the commit this page was built from.

Class AB Stereo Amp SMD: common questions

How big is the Class AB Stereo Amp SMD PCB?

The Class AB Stereo Amp SMD measures 100 × 100 mm, has 2 copper layers and is 2.63 mm thick.

How many components are on the Class AB Stereo Amp SMD?

78 components, from 44 distinct parts. The full bill of materials is listed on this page.

Where can I download the Class AB Stereo Amp SMD design files?

From the alexandrebobkov/KiCAD-Projects repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Class AB Stereo Amp SMD design in my own project?

Yes, under the terms of its MIT license, which alexandrebobkov chose for the repository.

More boards in KiCAD-Projects

Similar boards