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MPPT Li-Ion CN3791 charger board panel

SolderedElectronics·MPPT-Li-Ion-CN3791-charger-board-hardware-design·CAD/V1.2.1/PANEL/MPPT Li-Ion CN3791 charger board_panel.kicad_pcb

MPPT Li-Ion CN3791 charger board panel layout, top view — open source board by SolderedElectronics

About the MPPT Li-Ion CN3791 charger board panel

MPPT Li-Ion CN3791 charger board panel is an open source PCB design by SolderedElectronics, published on GitHub under the TAPR-OHL-1.0 license. It is a 2-layer board measuring 4.8 × 4.7 mm, with 33 components from 26 distinct parts.

Other key parts include the CN3791. By type, the board carries 10 resistors, 7 capacitors, 5 diodes, 4 relays, 1 IC and 1 jumper.

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

From the project

Hardware design, BOM, gerbers and 3D files for MPPT-Li-Ion-CN3791-charger-board designed by Soldered Electronics.

Introducing our new MPPT Li-Ion charger, your all-in-one solution for efficient and reliable battery charging using solar energy! Whether you’re a hobbyist tinkering with electronics or a professional in need of a compact charging solution, this board will make things easier.

On board is the CN3791 which provides sophisticated charging algorithms tailored to Li-Ion batteries, ensuring precise control over the charging process for maximum efficiency and safety. Next to it, there are quick terminals with springs on the board for an even simpler and faster connection of the solar panel and…

MPPT Li-Ion CN3791 charger board panel, from the project README
From the project README

Main components on the MPPT Li-Ion CN3791 charger board panel

CN3791

MPPT Li-Ion CN3791 charger board panel bill of materials (BOM)

33 components, 26 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
CN3791
U1
4
HOLE_3.2mm
H1, H2, H3, H4
1
SMD-JUMPER-CONNECTED_TRACE_SLODERMASK
JP1
2
TERMINAL_KF235-5.0-2P
K1, K6
1
HEADER_FEMALE_4X2
K2
1
JST-2pin-SMD
K3
1
Green
D1
1
Red
D2
1
AOD4185
D3
1
RBR5LAM30ATFTR
D4
1
purple
D5
1
YPRH1209-470M
L1
2
10u
C1, C6
1
1u
C2
2
VKMD1451H221MV
C3, C7
1
100n
C4
1
220n
C5
1
4k7
R1
1
120R
R2
1
30k
R3
Show 6 more
QtyPartRefs
1
62k
R4
1
300k
R5
1
130k
R6
1
75k
R7
1
40m
R8
2
2k2
R9, R10

MPPT Li-Ion CN3791 charger board panel design files

The KiCad project lives in the SolderedElectronics/MPPT-Li-Ion-CN3791-charger-board-hardware-design repository on GitHub; these links point at the commit this page was built from.

MPPT Li-Ion CN3791 charger board panel: common questions

How big is the MPPT Li-Ion CN3791 charger board panel?

The MPPT Li-Ion CN3791 charger board panel measures 4.8 × 4.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MPPT Li-Ion CN3791 charger board panel?

33 components, from 26 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 MPPT Li-Ion CN3791 charger board panel design files?

From the SolderedElectronics/MPPT-Li-Ion-CN3791-charger-board-hardware-design repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the MPPT Li-Ion CN3791 charger board panel design in my own project?

Yes, under the terms of its TAPR-OHL-1.0 license, which SolderedElectronics chose for the repository.

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