HardLabs

LPAD

Ehryk·ehryk.github.com·Circuits/3rd Order Butterworth LPAD/LPAD.kicad_pcb

LPAD PCB layout, top view — open source board by Ehryk

About the LPAD PCB

LPAD is an open source PCB design by Ehryk, published on GitHub under the BSD-3-Clause license. It is a 2-layer board measuring 116.8 × 162.6 mm, with 30 components from 20 distinct parts.

By type, the board carries 13 switches, 6 capacitors, 4 connectors, 4 resistors and 3 inductors.

From the project

Code

This is my github pages repo, viewable at ehryk.github.io. It also has some setup files that I sync between various computers, most notably git and bash aliases.

These are the settings I sync between various computers. Update Config.bat for windows, update-config.sh for linux.

Custom Rainmeter skins for GPU and CPU temps, etc.

LPAD bill of materials (BOM)

30 components, 20 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
INPUT
P1
1
TWEETER
P2
1
WOOFER_A
P3
1
WOOFER_B
P4
7
#6
S1, S2, S3, S4, S5, S6, S7
2
Attenuation
SW1, SW3
3
Phase
SW2, SW4, SW6
1
Bypass
SW5
1
ASPI-0630LR-6R8M-T15
0.38 mH
L1
1
ASPI-0630LR-6R8M-T15
0.78 mH
L2
1
0.25 mH
L3
1
AC0805KRX7R9BB104
3.3 μF
C1
2
AC0805KRX7R9BB104
2.2 μF
C2, C6
1
CL32B226KAJNNNE
10 μF
C3
1
CL32B226KAJNNNE
5.6 μF
C4
1
AC0805KRX7R9BB104
8.2 μF
C5
1
2Ω
R1
1
CRGCQ0805F220R
25Ω
R2
1
CRGCQ0805F220R
2Ω
R3
1
CRGCQ0805F10K
24Ω
R4

LPAD design files

The KiCad project lives in the Ehryk/ehryk.github.com repository on GitHub; these links point at the commit this page was built from.

LPAD: common questions

How big is the LPAD PCB?

The LPAD measures 116.8 × 162.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the LPAD?

30 components, from 20 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the LPAD design files?

From the Ehryk/ehryk.github.com repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the LPAD design in my own project?

Yes, under the terms of its BSD-3-Clause license, which Ehryk chose for the repository.

More boards in ehryk.github.com