HardLabs

Power bus

ohmtech-rdi·eurorack-blocks·blocks/power-bus/power-bus.kicad_pcb

Power bus PCB layout, top view — open source board by ohmtech-rdi

About the Power bus PCB

Power bus is an open source PCB design by ohmtech-rdi, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 37 × 21.5 mm, with 9 components from 6 distinct parts.

By type, the board carries 3 connectors, 2 diodes, 2 inductors and 2 capacitors.

It belongs with the audio designs in this gallery.

From the project

Software to Hardware Prototyping for Eurorack using C++, Max/Gen~ or Faust

This block is a simple eurorack power bus connector adapter. Its design is detailed here.

This block provides: - The 3 standard +12V, GND, –12V lines, to typically power the audio op-amps, such as audio-in-daisy or audio-out-daisy, - A rectified +12V line, named +12R, suitable for use with subsequent power regulators, such as regulator-daisy.

Power bus, from the project README
From the project README

Power bus bill of materials (BOM)

9 components, 6 distinct parts.

QtyPartRefs
1
POWER BUS
J1
1
POWER1
J2
1
POWER2
J3
2
D_Schottky
D1, D2
2
Ferrite_Bead
L1, L2
2
22u
C1, C2

Power bus design files

The KiCad project lives in the ohmtech-rdi/eurorack-blocks repository on GitHub; these links point at the commit this page was built from.

Power bus: common questions

How big is the Power bus PCB?

The Power bus measures 37 × 21.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Power bus?

9 components, from 6 distinct parts. The full bill of materials is listed on this page.

Where can I download the Power bus design files?

From the ohmtech-rdi/eurorack-blocks repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Power bus design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which ohmtech-rdi chose for the repository.

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