PPOW - Power distribution modul
About the PPOW - Power distribution modul PCB
PPOW - Power distribution modul is an open source PCB design by pozsarzs, published on GitHub under the EUPL-1.2 license. It is a 2-layer board measuring 154.9 × 80 mm, with 48 components from 11 distinct parts.
Other key parts include the ROM-0524S. By type, the board carries 29 connectors, 11 fuses, 4 capacitors, 2 ICs and 2 resistors.
It belongs with the retro computing designs in this gallery.
From the project
8-bit microcomputer built from commercially available and home-built components
The PPOW module is responsible for distributing the power voltages coming from the ATX PC power supply. The module has two +12V, three +5V and 3.3V, one -5V, -12V and standby +5V outputs. These outputs are protected by fuses and double terminal blocks. These are used to power the internal units. Additionally, there are five unprotected outputs that are connected to the front panel power outputs using back panel fuses. The module also has two 24V/41 mA ground-independent auxiliary power outputs, power switch and LED connectors.
Main components on the PPOW - Power distribution modul
PPOW - Power distribution modul bill of materials (BOM)
48 components, 11 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | ROM-0524S | Converter_DCDC_Murata_CRE1xxxxxxSC_THT | U1, U2 |
| 1 | Conn_01x02_Male | PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | ATX-20 | Molex_Mini-Fit_Jr_5566-20A_2x10_P4.20mm_Vertical | J2 |
| 1 | Conn_01x04_Male | PinHeader_1x04_P2.54mm_Vertical | J3 |
| 22 | Screw_Terminal_01x02 | TerminalBlock_bornier-2_P5.08mm | J4, J5, J6, J7, J8, J9, J10, J11 +14 |
| 2 | Screw_Terminal_01x05 | TerminalBlock_bornier-5_P5.08mm | J26, J27 |
| 2 | Conn_01x03_Male | PinHeader_1x03_P2.54mm_Vertical | J28, J29 |
| 11 | Fuse | Fuseholder_Cylinder-5x20mm_Stelvio-Kontek_PTF78_Horizontal_Open | F1, F2, F3, F4, F5, F6, F7, F8 +3 |
| 2 | 100n | C_Disc_D5.0mm_W2.5mm_P2.50mm | C1, C2 |
| 2 | 10u 35V | CP_Radial_Tantal_D4.5mm_P2.50mm | C3, C4 |
| 2 | 470 | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R1, R2 |
PPOW - Power distribution modul design files
The KiCad project lives in the pozsarzs/zacchaeus repository on GitHub; these links point at the commit this page was built from.
PPOW - Power distribution modul: common questions
How big is the PPOW - Power distribution modul PCB?
The PPOW - Power distribution modul measures 154.9 × 80 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the PPOW - Power distribution modul?
48 components, from 11 distinct parts. The full bill of materials is listed on this page.
Where can I download the PPOW - Power distribution modul design files?
From the pozsarzs/zacchaeus repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the PPOW - Power distribution modul design in my own project?
Yes, under the terms of its EUPL-1.2 license, which pozsarzs chose for the repository.
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