Open-source KiCad boards

67 match “class-ab”

Printed circuit boards designed in KiCad and published on GitHub, each with its parts, layers and size, its README and its files; open any of them in PCBKit.

2 layers67.1 × 48.7 mm
Class AB Audio Amplifier
Omarfayed412/Class_AB_Audio_Amplifier

18 parts
4 layers100 × 100 mm
Current gen class ab
sirlilpanda/constant_current_function_gen
have you ever wanted a function gen for current in stead of voltage well here it is
86 parts
2 layers100 × 100 mm
Class AB Stereo Amp SMD
alexandrebobkov/KiCAD-Projects
KiCAD PBC projects
83 parts2MIT
2 layers100 × 100 mm
Class AB Stereo Amp SMD
alexandrebobkov/KiCAD-Projects
KiCAD PBC projects
87 parts2MIT
2 layers114.3 × 76.8 mm
High Power Class AB
Masaharu41/Midi-Bass-Guitar
A repository for all design work, assembly, and schematics for a robotic bass guitar programmed with MIDI
32 parts1GPL-3.0
2 layers134 × 109.5 mm
FreeDSP SMD AB plus
CyberPit/FreeDSP_Classic_SMD_AB_plus-II
An extended version of FreeDSP Classic SMD A/B
233 parts6
2 layers
AB Duplo diferencial
robinsonmourao/Esquema-eletrico-e-pcb-amplificador-classe-ab-duplo-par-diferencial

41 parts
4 layers85 × 48 mm
Class DAmp
Shift-delete0/Class_D_Amplifier
This is my project in which i have made a class D amplifier from scratch. I did this to challenge myself and learn more about analog electronics and amplifier.
32 parts
4 layers180 × 100 mm
Class board V0.2
TIGP-Experimental-Methods/class-board-2026
TIGP class instrument 2026: one board, five blocks - KiCad hardware, ESP32-S3 firmware, phone PWA, Python API, workbook
342 parts
2 layers100 × 75 mm
ABAmp
HabibMic/discrete-class-ab-amplifier
Three-stage discrete power amplifier design with iterative hardware validation and thermal stabilization.
34 parts
2 layers101.3 × 102.4 mm
Opamp front
prydin/opamp-frontend-class-ab
The result is a fast amplifier (>80V/us slew rate) with low distortion (0.00045% meadured @ 1kHz/1W/8ohm resistive load). It's undergone some preliminary measurements and looks quite promising.
93 parts4
4 layers
Soccer bottom
class-ab/open-soccer
Mindstormers' open soccer repo. contains code, pcbs, elec, diagrams, etc...
76 parts2
2 layers120.1 × 120 mm
Mono amplifier
dario0603/AB-class-amplifier
Design and simulation of a Class-AB audio power amplifier, focusing on output-stage linearity, crossover distortion reduction, and overcurrent protection.
97 parts1
2 layers40 × 20 mm
B FM8002A BRK R1.0
Boardoza/Boardoza_FM8002A_Audio_Amplifier_Module
Compact mono FM8002A-based audio amplifier module for portable and embedded speaker applications.
12 partsCC-BY-SA-4.0
2 layers75 × 45 mm
KiCad Design Files
norisionut12/12V-Class-AB-Audio-Amplifier
Discrete 12V single-supply Class AB audio amplifier with active-low relay speaker protection and linear voltage regulator.
34 partsMIT
2 layers190 × 144.3 mm
Amplifier
oselcukyatagan/CLASS_AB_AUDIO_POWER_AMP
This is the repository for the developing of the class AB audio power amplifier device.
85 parts
2 layers
Audio amp
ramankr44/Design-and-Fabrication-of-class-AB-audio-amplifier

608 partsMIT
2 layers129 × 83.3 mm
Power supply
prydin/opamp-frontend-class-ab
The result is a fast amplifier (>80V/us slew rate) with low distortion (0.00045% meadured @ 1kHz/1W/8ohm resistive load). It's undergone some preliminary measurements and looks quite promising.
40 parts4
2 layers81.5 × 81.5 mm
Kicker
class-ab/open-soccer
Mindstormers' open soccer repo. contains code, pcbs, elec, diagrams, etc...
39 parts2
4 layers95.1 × 95.1 mm
Middle
class-ab/open-soccer
Mindstormers' open soccer repo. contains code, pcbs, elec, diagrams, etc...
30 parts2
2 layers84.5 × 82.6 mm
Classab amp
prydin/classab-amp-mosfet
MOSFET-based 50W Class AB amplifier
67 parts9
4 layers106.7 × 50.8 mm
BE Elec S2
AurelienCapron/kicad-piezo-audio-amplifier
Conception sous KiCad 9 et caractérisation de deux cartes PCB CMS pour l'amplification audio d'un capteur piézoélectrique : préampli, filtre Baxandall (ST TSV912), Loudness et étages de puissance Classe AB (TS4871) et…
74 parts
2 layers374 × 121 mm
3psu
xform3/xfpcb-0003-amp
XFPCB-0003_AMP Class-AB Amplifier TDA2030 or LM1875
186 parts4
2 layers43.8 × 31.1 mm
OpAmp
AleDedor/Discrete_OpAmp
A Single Ended Operational Amplifier mainly made with bipolar technology and a NMOS differential pair, two amplification stages and a Class AB output stage.
23 parts1