HardLabs

Class D Amp

zerberros·Class_D_Amp·KiCAD/class_D_ampl.kicad_pcb

Class D Amp PCB layout, top view — open source board by zerberros

About the Class D Amp PCB

Class D Amp is an open source PCB design by zerberros, published on GitHub. It is a 2-layer board measuring 140.5 × 79 mm, with 77 components from 37 distinct parts.

Other key parts include the TLC555, TL084, LM319, ir2010_SOIC and 40106. By type, the board carries 27 resistors, 17 capacitors, 8 ICs, 8 transistors, 6 connectors and 4 diodes.

It belongs with the audio designs in this gallery.

From the project

Power Class-D amplifier

In this project has been designed, simulated and built an analog class-D power stage. For the design, a triangular signal generator based on a TLC555 and current sources using BJT transistors has been used. The signal is then adapted with some operational amplifiers and logic gates. Drivers of the ir2010 family have been used to control the power MOSFETs. Finally, the signal is integrated through a passive filter formed by 2 toroidal coils and some capacitors.

Class D Amp, from the project README
From the project README

Main components on the Class D Amp

TLC555TL084LM319ir2010_SOIC4010614081

Class D Amp bill of materials (BOM)

77 components, 37 distinct parts.

QtyPartRefs
1
TLC555
U1
1
TL084
U2
1
LM319
U3
2
ir2010_SOIC
U4, U5
2
40106
U6, U7
1
14081
U8
2
MMBT3904
Q1, Q3
2
MMBT3906
Q2, Q8
4
Q_NMOS_GDS
Q4, Q5, Q6, Q7
1
CONN_01X03
P1
1
BNC
P2
2
CONN_01X01
P3, P4
1
CONN_speaker_plus
P5
1
CONN_speaker_minus
P6
1
POT
RV1
2
TEST_1P
W1, W2
2
DZ2J039
Z1_3.9V1, Z2_3.9V1
4
D
D3, D4, D5, D6
2
35u
L1, L2
3
10n
C1, C2, C3
Show 17 more
QtyPartRefs
2
100n
C4, C9
2
47u
C5, C10
2
100p
C6, C7
1
560p
C8
3
22u
C11, C12, C13
4
100p
C14, C15, C16, C17
2
4.7k
R1, R2
2
100k
R3, R4
2
4.7
R5, R6
2
12k
R7, R10
2
56k
R8, R9
2
0
R11, R23
1
NC
R12
2
1k2
R13, R14
4
10
R15, R16, R17, R18
4
3300
R19, R20, R21, R22
4
Heater
R24, R25, R26, R27

Class D Amp design files

The KiCad project lives in the zerberros/Class_D_Amp repository on GitHub; these links point at the commit this page was built from.

Class D Amp: common questions

How big is the Class D Amp PCB?

The Class D Amp measures 140.5 × 79 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Class D Amp?

77 components, from 37 distinct parts. The full bill of materials is listed on this page.

Where can I download the Class D Amp design files?

From the zerberros/Class_D_Amp repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Class D Amp design in my own project?

The repository has no license, so all rights stay with zerberros. Use it as a reference, and ask the author before reusing the design.

Similar boards