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ETA3000-3S-Active-Cell-Balancer

SHREYASHSB21·ETA3000-3S-Active-Cell-Balancer

ETA3000-3S-Active-Cell-Balancer PCB layout, top view — open source board by SHREYASHSB21

About the ETA3000-3S-Active-Cell-Balancer PCB

ETA3000-3S-Active-Cell-Balancer is an open source PCB design by SHREYASHSB21, published on GitHub. It is a 2-layer board measuring 30 × 14 mm, with 19 components from 9 distinct parts.

Other key parts include the ETA3000D2I. By type, the board carries 8 capacitors, 4 resistors, 2 ICs, 2 battery holders, 2 inductors and 1 connector.

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

From the project

3S inductive active cell-balancing module based on the ETA3000, designed for up to 1.2 A balancing current.

A compact 3-cell (3S) inductive active cell-balancing module designed using the ETA3000 active cell-balancing IC.

This project was developed as part of an Electronics Systems task to design and develop a compact active cell-balancing module for a 3S battery system intended for drone applications.

In conventional passive cell balancing, excess energy from a higher-voltage cell is dissipated as heat through a balancing resistor. This results in energy loss and additional thermal stress.

Main components on the ETA3000-3S-Active-Cell-Balancer

ETA3000D2I

ETA3000-3S-Active-Cell-Balancer bill of materials (BOM)

19 components, 9 distinct parts.

QtyPartRefs
2
ETA3000D2I
IC1, IC2
1
Conn_01x04_Pin
J1
2
LED
BT1&2, BT2&3
2
0.8uH
L1, L2
2
800pf
C1, C2
2
10nf
C3, C8
4
10uf
C4, C5, C6, C7
2
40k
R1, R2
2
R
R3, R4

ETA3000-3S-Active-Cell-Balancer design files

The KiCad project lives in the SHREYASHSB21/ETA3000-3S-Active-Cell-Balancer repository on GitHub; these links point at the commit this page was built from.

ETA3000-3S-Active-Cell-Balancer: common questions

How big is the ETA3000-3S-Active-Cell-Balancer PCB?

The ETA3000-3S-Active-Cell-Balancer measures 30 × 14 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ETA3000-3S-Active-Cell-Balancer?

19 components, from 9 distinct parts. The full bill of materials is listed on this page.

Where can I download the ETA3000-3S-Active-Cell-Balancer design files?

From the SHREYASHSB21/ETA3000-3S-Active-Cell-Balancer repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the ETA3000-3S-Active-Cell-Balancer design in my own project?

The repository has no license, so all rights stay with SHREYASHSB21. Use it as a reference, and ask the author before reusing the design.

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