Parvus psu
About the Parvus psu PCB
Parvus psu is an open source PCB design by nradulovic, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 100 × 100 mm, with 61 components from 29 distinct parts.
By type, the board carries 22 resistors, 15 capacitors, 9 connectors, 8 transistors and 7 diodes.
It belongs with the audio designs in this gallery.
From the project
TDA7293 based audio power amplifier
.. contents:: Table of Contents :depth: 3
This document shall describe rationales used to design and build audio power amplifier using TDA7293 integrated circuit.
The amplifier architecture consists of the following sections:
The amplifier consists of the following section: - Amplifier (AMP) board (left and right channels) - Input/output filtering and Interface (IOI) board - Power supply and control (PSC) board
Parvus psu bill of materials (BOM)
61 components, 29 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 5 | BC546B | TO-92_Inline_Wide | Q1, Q2, Q3, Q4, Q5 |
| 3 | BC556B | TO-92_Inline_Wide | Q6, Q7, Q8 |
| 1 | tr_sec | TerminalBlock_Phoenix_MKDS-3-3-5.08_1x03_P5.08mm_Horizontal | J1 |
| 1 | switch | TerminalBlock_Phoenix_MKDS-3-2-5.08_1x02_P5.08mm_Horizontal | J2 |
| 1 | ac_input | TerminalBlock_Phoenix_MKDS-3-3-5.08_1x03_P5.08mm_Horizontal | J3 |
| 1 | tr_pri | TerminalBlock_Phoenix_MKDS-3-3-5.08_1x03_P5.08mm_Horizontal | J4 |
| 1 | power_1 | PhoenixContact_MCV_1,5_3-G-3.81_1x03_P3.81mm_Vertical | J5 |
| 1 | power_2 | PhoenixContact_MCV_1,5_3-G-3.81_1x03_P3.81mm_Vertical | J6 |
| 1 | signal | PinHeader_1x03_P2.54mm_Vertical | J7 |
| 1 | ctrl_1 | PinHeader_1x04_P2.54mm_Vertical | J8 |
| 1 | ctrl_2 | PinHeader_1x04_P2.54mm_Vertical | J9 |
| 2 | GBU2508F | Diode_Bridge_Vishay_GBU | D1, D2 |
| 5 | 1N4148 | D_DO-35_SOD27_P7.62mm_Horizontal | D3, D4, D5, D6, D7 |
| 1 | 100n | C_Rect_L26.5mm_W10.5mm_P22.50mm_MKS4 | C1 |
| 4 | 470n | C_Rect_L7.2mm_W8.5mm_P5.00mm_FKP2_FKP2_MKS2_MKP2 | C2, C3, C10, C11 |
| 3 | 22n | C_Rect_L18.0mm_W7.0mm_P15.00mm_FKS3_FKP3 | C4, C5, C6 |
| 1 | 470n | C_Rect_L18.0mm_W11.0mm_P15.00mm_FKS3_FKP3 | C7 |
| 2 | 6m8 | CP_Radial_D26.0mm_P10.00mm_SnapIn | C8, C9 |
| 2 | 2u2 | CP_Radial_D5.0mm_P2.50mm | C12, C14 |
| 1 | 4u7 | CP_Radial_D5.0mm_P2.50mm | C13 |
Show 9 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 10u | CP_Radial_D8.0mm_P2.50mm | C15 |
| 1 | 10 | R_Axial_DIN0918_L18.0mm_D9.0mm_P22.86mm_Horizontal | R1 |
| 2 | 1 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R3 |
| 3 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R5, R7 |
| 6 | 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R6, R9, R10, R12, R14, R15 |
| 1 | 47k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R8 |
| 2 | 100 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R11, R13 |
| 5 | 22k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R16, R17, R18, R19, R20 |
| 2 | 4k7 | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R21, R22 |
Parvus psu design files
The KiCad project lives in the nradulovic/hw_parvus repository on GitHub; these links point at the commit this page was built from.
Parvus psu: common questions
How big is the Parvus psu PCB?
The Parvus psu measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Parvus psu?
61 components, from 29 distinct parts. The full bill of materials is listed on this page.
Where can I download the Parvus psu design files?
From the nradulovic/hw_parvus repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Parvus psu design in my own project?
Yes, under the terms of its GPL-3.0 license, which nradulovic chose for the repository.
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