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Balthazar-PSU-v.3

balthazar-space·Balthazar-PSU-v.3·kicad/BalthazarPSU3.kicad_pcb

Balthazar-PSU-v.3 PCB layout, top view — open source board by balthazar-space
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About the Balthazar-PSU-v.3 PCB

Balthazar-PSU-v.3 is an open source PCB design by balthazar-space, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 85.9 × 25.4 mm, with 82 components from 45 distinct parts.

Other key parts include the BQ24193, PAM8403-SOP16, TPS63020 and LM2623. By type, the board carries 29 resistors, 9 capacitors, 7 connectors, 4 ICs, 4 diodes and 3 transistors.

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

From the project

Open-hardware laptop computer modules description and concept.

Open-hardware laptop computer modules description and concept.

These are electronic schematic modules as presented at https://balthazar.space/wiki/Balthazar with the main aim for team access. See the main repository for other designs.

Module BalthazarPSU3 is a combined 1S battery charger, buck-boost converter to 5V, boost converter to 12V and stereo power amplifier.

Balthazar-PSU-v.3, from the project README
From the project README

Main components on the Balthazar-PSU-v.3

BQ24193PAM8403-SOP16TPS63020LM2623

Balthazar-PSU-v.3 bill of materials (BOM)

82 components, 45 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
BQ24193
IC1
1
PAM8403-SOP16
U1
1
TPS63020
U3
1
LM2623
U4
1
IRF7404
Q1
2
BSS138
Q2, Q3
1
AudioIN
J1
1
USB_C_Receptacle_USB2.0
J2
1
5-15V / 3-5A
J3
1
AudioOUT
J4
1
uC host
J7
1
5V 3A
J8
1
12V 2A
J9
1
1s LiPo
BATT1
6
10uF
CBAT1, CBUS1, CBUS4, CPMID1, CSYS1, CSYS3
7
1uF
CBTST1, CBUS2, CBUS3, CBUS5, CBUS8, CPSU2, CREGN1
4
0.1uF
CBUS3a1, CBUS3a2, CBUS7, CPMID1a1
1
R
RBTST1
1
820K
RF1
1
100K
RF2
Show 25 more
QtyPartRefs
1
thermistor
THERM1
1
10K
THERMISTOR(103-AT)1
3
Led
D1, D2, D4
1
B320
D7
1
2.2uH 4A
L1
1
1.5uH 4A
L2
1
4.7uH 2A
L4
2
0.1uF
C1, C24
5
22uF
C3, C5, C7, C9, C14
1
4.7pF
C12
1
1nF
C25
8
10K
R1, R2, R3, R6, R16, R17, R18, R42
6
2K2
R4, R5, R8, R9, R11, R21
1
265
R7
1
6K8
R10
2
1M
R12, R23
1
180K
R13
2
5K1
R19, R27
2
56K
R20, R28
1
270K
R22
1
150K
R25
1
120K
R38
1
49K9
R39
1
262K
R40
1
100K
R41

Balthazar-PSU-v.3 design files

The KiCad project lives in the balthazar-space/Balthazar-PSU-v.3 repository on GitHub; these links point at the commit this page was built from.

Balthazar-PSU-v.3: common questions

How big is the Balthazar-PSU-v.3 PCB?

The Balthazar-PSU-v.3 measures 85.9 × 25.4 mm, has 4 copper layers and is 1.58 mm thick.

How many components are on the Balthazar-PSU-v.3?

82 components, from 45 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 Balthazar-PSU-v.3 design files?

From the balthazar-space/Balthazar-PSU-v.3 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 Balthazar-PSU-v.3 design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which balthazar-space chose for the repository.

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