HardLabs

Power supply

b3dag·r2r-DAC·power_supply/power_supply.kicad_pcb

Power supply PCB layout, top view — open source board by b3dag

About the Power supply PCB

Power supply is an open source PCB design by b3dag, published on GitHub. It is a 2-layer board measuring 90.8 × 52.1 mm, with 12 components from 8 distinct parts.

Other key parts include the L7812, L7912 and L7805. By type, the board carries 4 diodes, 3 ICs, 2 capacitors, 1 connector, 1 fuse and 1 transformer.

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

Main components on the Power supply

L7812L7912L7805

Power supply bill of materials (BOM)

12 components, 8 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
L7812
U1
1
L7912
U2
1
L7805
U3
1
CONN_01X04_PIN
Conn_01x04_Pin
J2
1
Fuse
F1
1
~
T1
4
1N4007
D1, D2, D3, D4
2
2200UF
2200uF
C1, C2

Power supply design files

The KiCad project lives in the b3dag/r2r-DAC 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 90.8 × 52.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Power supply?

12 components, from 8 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 b3dag/r2r-DAC 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 b3dag. Use it as a reference, and ask the author before reusing the design.

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