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Adjustable Modular Power Supply

thebiguno·microcontroller-projects·projects/power_supply/kicad/power_supply.kicad_pcb

Adjustable Modular Power Supply PCB layout, top view — open source AVR/Arduino board by thebiguno
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About the Adjustable Modular Power Supply PCB

Adjustable Modular Power Supply is an open source AVR/Arduino PCB design by thebiguno, published on GitHub. It is a 2-layer board measuring 36.8 × 52.7 mm, with 183 components from 60 distinct parts.

Its main chip is the ATMEGA32U4-A, from the AVR/Arduino family. Other key parts include the MC3303PT, LM317T, LM7812, LM7805 and MCP4728. By type, the board carries 69 resistors, 37 capacitors, 29 relays, 11 diodes, 9 ICs and 3 connectors.

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

From the project

A home for a bunch of microcontroller projects which don't warrant their own repos.

microcontroller-projects ========================

A home for my microcontroller projects, including Stubby the Hexapod and others. It includes libraries for avr-gcc along with sample programs on how to use them, some KiCad modules, and the source code for a number of projects.

Some major projects include: Stubby the Hexapod (http://stubby.digitalcave.ca/stubby/) (Now extracted into its own repo at https://github.com/thebiguno/stubby) DrumMaster (http://drummaster.digitalcave.ca/drummaster/) * Chiindii (http://chiindii.digitalcave.ca/chiindii/)

Main components on the Adjustable Modular Power Supply

ATMEGA32U4-AMC3303PTLM317TLM7812LM7805MCP4728

Adjustable Modular Power Supply bill of materials (BOM)

183 components, 60 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA32U4-A
U1
2
MC3303PT
U2, U3
1
LM317T
U4
1
LM7812
U5
1
LM7805
U6
3
MCP4728
U7, U8, U9
1
TIP107
Q1
1
CRYSTAL_SMD_4PIN
X1
1
USB-MINI-B
CON1
1
CONN_10X2
ISP
P1
1
PROG_JMP
P2
1
HD44780
DS1
7
VS
K1, K2, K3, K4, K5, K6, K7
1
V_LED
K8
1
SUPPLY
K9
1
VOUT
K10
1
CONTROL_FEEDBACK
K11
2
HEATSINK
K12, K14
1
I_LIM_LED
K13
2
USB
K15, K17
Show 40 more
QtyPartRefs
1
POWER
K16
1
ENC1
K18
1
ENC2
K19
1
FAN_12V
K20
3
I2C_PROG
K21, K22, K23
1
CHANNEL_0
K24
1
CHANNEL_1
K25
1
CHANNEL_2
K26
1
CHANNEL_3
K27
1
CHANNEL_4
K28
1
CHANNEL_5
K29
11
MOUNTING_HOLE
MP1, MP2, MP5, MP7, MP9, MP11, MP14, MP16 +3
4
MOUSE_BITES
MP3, MP4, MP6, MP13
2
GRAPHIC
MP8, MP15
2
GRAPHIC
MP12, MP21
1
10k
RV1
1
RESET
SW1
1
HWB
SW2
3
SCHOTTKEY
D1, D2, D3
4
5.1V
D4, D5, D6, D7
4
TVS
D8, D9, D10, D11
4
100uF
C1, C2, C3, C4
17
0.1uF
C5, C6, C7, C8, C9, C11, C12, C17 +9
10
1uF
C10, C13, C14, C15, C16, C24, C25, C31 +2
2
8pF
C23, C26
4
10nF
C27, C28, C29, C30
1
Rsh
R1
20
0
R2, R3, R7, R8, R9, R15, R17, R22 +12
20
1k
R4, R5, R11, R12, R13, R18, R30, R32 +12
1
200
R6
2
20k
R10, R67
5
5.1k
R14, R19, R24, R42, R68
2
510
R16, R21
2
2k
R20, R28
1
100
R23
3
10k
R27, R48, R57
1
200k
R43
7
100k
R46, R60, R61, R62, R63, R64, R65
2
22
R49, R52
2
4.7k
R50, R51

Adjustable Modular Power Supply design files

The KiCad project lives in the thebiguno/microcontroller-projects repository on GitHub; these links point at the commit this page was built from.

Adjustable Modular Power Supply: common questions

What microcontroller does the Adjustable Modular Power Supply use?

The Adjustable Modular Power Supply is built around the ATMEGA32U4-A, from the AVR/Arduino family.

How big is the Adjustable Modular Power Supply PCB?

The Adjustable Modular Power Supply measures 36.8 × 52.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Adjustable Modular Power Supply?

183 components, from 60 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 Adjustable Modular Power Supply design files?

From the thebiguno/microcontroller-projects repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Adjustable Modular Power Supply design in my own project?

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

Can I test firmware for the Adjustable Modular Power Supply without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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