HardLabs

Breadboard-Power-Supply

anasarif23·Breadboard-Power-Supply·Version0.1/BreadBoardPower.kicad_pcb

Breadboard-Power-Supply PCB layout, top view — open source board by anasarif23

About the Breadboard-Power-Supply PCB

Breadboard-Power-Supply is an open source PCB design by anasarif23, published on GitHub. It is a 2-layer board measuring 34.8 × 52.3 mm, with 17 components from 13 distinct parts.

Other key parts include the LM7805_TO220 and LM317_TO-220. By type, the board carries 7 connectors, 3 capacitors, 3 resistors, 2 ICs, 1 switch and 1 diode.

It belongs with the power & battery and dev boards & breakouts designs in this gallery.

From the project

A dual-rail regulated power supply module for solderless breadboards, designed in KiCad. It takes a 12V barrel-jack input and provides two independently selectable output rails (5V or 3.3V) to power breadboard projects.

A dual-rail regulated power supply module for solderless breadboards, designed in KiCad. It takes a 12V barrel-jack input and provides two independently selectable output rails (5V or 3.3V) to power breadboard projects.

This board regulates a 12V DC input down to clean 5V and 3.3V rails using an LM7805 (fixed 5V) and an LM317 (adjustable, set to 3.3V), then routes the selected voltage to two separate output rails — a "top" rail and a "bottom" rail — matching the standard dual power-rail layout on a breadboard. Each rail's voltage is chosen independently via a jumper selector, and power is…

Breadboard-Power-Supply, from the project README
From the project README

Main components on the Breadboard-Power-Supply

LM7805_TO220LM317_TO-220

Breadboard-Power-Supply bill of materials (BOM)

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

QtyPartRefs
1
LM7805_TO220
U1
1
LM317_TO-220
U2
2
Conn_01x02_Pin
J2, J4
2
Conn_01x03_Pin
J3, J8
2
Screw_Terminal_01x02
J5, J6
1
Barrel_Jack_Switch
J7
1
EG1218
SW1
1
LED
D1
1
0.1u
C1
1
10u
C2
1
1u
C3
2
330
R1, R2
1
560
R3

Breadboard-Power-Supply design files

The KiCad project lives in the anasarif23/Breadboard-Power-Supply repository on GitHub; these links point at the commit this page was built from.

Breadboard-Power-Supply: common questions

How big is the Breadboard-Power-Supply PCB?

The Breadboard-Power-Supply measures 34.8 × 52.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Breadboard-Power-Supply?

17 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 Breadboard-Power-Supply design files?

From the anasarif23/Breadboard-Power-Supply 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 Breadboard-Power-Supply design in my own project?

The repository has no license, so all rights stay with anasarif23. Use it as a reference, and ask the author before reusing the design.

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