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Power supply

zapta·daq·power_supply/kicad/power_supply.kicad_pcb

Power supply PCB layout, top view — open source board by zapta
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About the Power supply PCB

Power supply is an open source PCB design by zapta, published on GitHub. It is a 2-layer board measuring 90 × 88.4 mm, with 18 components from 13 distinct parts.

Other key parts include the URB2405YMD-10WR3 and ESD5344D. By type, the board carries 4 test points, 4 diodes, 3 fuses, 2 ICs, 2 capacitors and 2 resistors.

It belongs with the power & battery designs in this gallery.

From the project

A modular data acquisition system.

This plugin board contains an DC/DC module which generates the 5VCD feed of the bus from the 12-24V DC input.

The power supply is isolated such that VIN is not galvanically connected to the system. Can provide 5V @ 2A from 9-36VDC input. Contains fuses on input and output voltages and ESD protection on the 5V output voltage. Contains indication LEDs for input and output voltages. Contains test points for input and output voltages. Inexpensive 2 layers PCB design with one layer dedicated for ground plane. * Not intended for hot swapping.

Power supply, from the project README
From the project README

Main components on the Power supply

URB2405YMD-10WR3ESD5344D

Power supply bill of materials (BOM)

18 components, 13 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
URB2405YMD-10WR3
U1
1
ESD5344D
U2
1
PCIE_98
pcie_98
J1
2
1.25A
F1, F2
1
C99538
2A
F3
4
TestPoint
TP1, TP2, TP3, TP4
1
C72038
LED YELLOW
D1
2
C8598
B5819W SL
D2, D6
1
C72043
LED GREEN
D5
1
C96182
100uf 10V
C1
1
C250948
100uf 50V
C3
1
3K9
6K8
R1
1
15K
R4

Power supply design files

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

Power supply: common questions

How big is the Power supply PCB?

The Power supply measures 90 × 88.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Power supply?

18 components, from 13 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 Power supply design files?

From the zapta/daq repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

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

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

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