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BMS 7S 18650
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Arduino BMS - BQ76930

1 year ago 2489
  • Description
  • Documents
  • BOM
  • Attachments
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Description

WORK IN PROGRESS - NOT READY FOR MANUFACTURE

Looking for collabortors to get this design ready for a a production build.

Project to build a 7S 5P 18650 battery state monitoring system. Note: the BQ76930 is specifically configured for a 7 series pack.

http://www.ti.com/lit/ds/symlink/bq76930.pdf Note Table 8-2. Cell Connections for 7S Pack Configuration bq76930

Thanks to scttnlsn for the headstart in this project.

Documents

Cell Monitor V1.1

Cell Monitor V1.2

PBC V1.1

PBC V1.2

PBC_V1.3

BOM

ID Manufacturer Part
1 ?
2 ?
3 ?
4 ?
5 ?
6 DTSM-62K-S-V-T/R(SN431)
7 ?
8 ?
9 1N4148
10 ?
11 ?
12 ?
13 ?
14 LM2937
15 ?
16 ?
17 Female header1*2P
18 2.54-1*2PFemale
19 ?
20 Female headerHDR1X8-2.54
21 Female headerHDR1X8-2.54

Attachments

None

Members

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Comments (2)

grahamob Reply

I'm probably going to abandon the TI BQ76930 in favour of the LTC6803/4 chip
I think its its possible to build a system that is comparable to the Batrium products i.e. master with a number of daisy chained slaves.
This chip is SPI based, and has some good design examples featuring galvanic isolation.
I've already started to get this project going. Anyone fancy collaborating just message me.
Regards

grahamob Reply

I have creates a team for the new LTC6803 project.
Check it out and message me if you want to collaborate on it.

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