HardLabs

Minima psu

nradulovic·hw_minima·minima_psu/minima_psu.kicad_pcb

Minima psu PCB layout, top view — open source board by nradulovic

About the Minima psu PCB

Minima psu is an open source PCB design by nradulovic, published on GitHub. It is a 2-layer board measuring 78 × 90 mm, with 26 components from 15 distinct parts.

By type, the board carries 13 capacitors, 6 connectors, 5 resistors and 2 diodes.

It belongs with the audio designs in this gallery.

From the project

LM1875 based audio power amplifier

.. contents:: Table of Contents :depth: 3

This document shall describe rationales used to design and build audio power amplifier using LM1875 integrated circuit.

The amplifier architecture consists of the following sections:

Input circuit Power amplifier * Power supply

All sections are located on separate PCB boards.

Input circuit ==================================

Minima psu bill of materials (BOM)

26 components, 15 distinct parts.

QtyPartRefs
1
power
J1
2
psupply
J2, J3
1
switch
J4
1
ac_in
J5
1
transformer
J6
2
GBU2508F
D1, D2
2
470n
C1, C5
2
6m8
C2, C6
4
100n
C3, C4, C7, C8
3
22n
C9, C10, C12
1
470n
C11
1
100n
C13
2
1
R1, R2
2
10k
R3, R4
1
10
R5

Minima psu design files

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

Minima psu: common questions

How big is the Minima psu PCB?

The Minima psu measures 78 × 90 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Minima psu?

26 components, from 15 distinct parts. The full bill of materials is listed on this page.

Where can I download the Minima psu design files?

From the nradulovic/hw_minima repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Minima psu design in my own project?

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

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