PSUCompanion
About the PSUCompanion PCB
PSUCompanion is an open source PCB design by coriolisinstruments, published on GitHub. It is a 2-layer board measuring 38.5 × 81 mm, with 19 components from 13 distinct parts.
Other key parts include the LM317_3PinPackage. By type, the board carries 6 connectors, 5 resistors, 3 capacitors, 2 diodes, 1 IC and 1 transistor.
It belongs with the audio designs in this gallery.
From the project
Open-source eurorack synthesizer modules and related stuff.
A companion board designed for Bel / Condor / Power One linear power supplies. Goes inbetween the power supply unit (PSU) and your busboards. Might be useful for other kinds of power supplies too.
Because we made this anyway, we threw in: - A simple 5V power supply, - Easier hook-up for busboards to the PSU.
We've observed when using a Bel HBB15-1.5AG PSU in combination with a Moog DFAM module some unpredictable start-up behaviour can occur. This is primarily noticable with the +12V rail which in some cases does not deliver +12V but rather +3V. Sometimes turning the power off and on fixes…
Main components on the PSUCompanion
PSUCompanion bill of materials (BOM)
19 components, 13 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LM317_3PinPackage | TO-220-3_Vertical | U1 |
| 1 | 2N3904 | TO-92_Inline | Q1 |
| 5 | Conn_01x03_Male | TerminalBlock_Philmore_TB133_1x03_P5.00mm_Horizontal | J1, J2, J3, J4, J5 |
| 1 | Conn_01x02_Male | PinHeader_1x02_P2.54mm_Vertical | J6 |
| 1 | JW2 | Relay_DPDT_Panasonic_JW2 | RL1 |
| 1 | IN4001 | D_DO-41_SOD81_P7.62mm_Horizontal | D1 |
| 1 | IN4007 | D_DO-41_SOD81_P7.62mm_Horizontal | D2 |
| 2 | 100n | C_Disc_D7.0mm_W2.5mm_P5.00mm | C1, C2 |
| 1 | 100uF | CP_Radial_D7.5mm_P2.50mm | C3 |
| 1 | 150K | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 2 | 20K | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2, R3 |
| 1 | 1K | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R4 |
| 1 | 330R | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5 |
PSUCompanion design files
The KiCad project lives in the coriolisinstruments/EurorackModules repository on GitHub; these links point at the commit this page was built from.
PSUCompanion: common questions
How big is the PSUCompanion PCB?
The PSUCompanion measures 38.5 × 81 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the PSUCompanion?
19 components, from 13 distinct parts. The full bill of materials is listed on this page.
Where can I download the PSUCompanion design files?
From the coriolisinstruments/EurorackModules repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the PSUCompanion design in my own project?
The repository has no license, so all rights stay with coriolisinstruments. Use it as a reference, and ask the author before reusing the design.
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