Single Cell Slave Board

Threads relating to the BMS system begun by Peter Perkins

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retepsnikrep
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Single Cell Slave Board

Postby retepsnikrep » Wed Jun 23, 2010 6:28 pm

This board is for single prismatic cells and was designed to fit HiPower cells in the range 40-200ah.

This was the first board designed and is currently in use by myself in my PHEV Honda insight which uses 50 x 40ah cells.

It was originally designed to use the Picaxe 08M chip, but can now be used with Picaxe 08M chips or plain 12F683 pic chips according to your taste. It has on board programming pins for the picaxe chips system but does not support ICSP for pic chips.

Hardware

It can be used/constructed in a digital or analog configuration.

The digital configuration requires a Master Pcb but gives full individual cell voltage reporting and other features.

Digital schematic http://www.solarvan.co.uk/bms/DigitalSlave080908.jpg

Digital board assembled http://www.solarvan.co.uk/bms/SlavePcbPop.jpg

The analog configuration mimics some other simple lithum cell protectors and provides a high and low cell voltage opto ouput. It is not reccomended but included for completeness only.

Analog schematic http://www.solarvan.co.uk/bms/AnalogueSlave080908.jpg


Software

The current software for the Picaxe 08M digital pcb layout is http://www.solarvan.co.uk/bms/DIGITAL_S ... 00BAUD.txt

The current software for the Picaxe 08M analog pcb layout is http://www.solarvan.co.uk/bms/SlaveAnal ... _v1_15.txt

The current software text file for the plain pic 12F683 digital pcb layout is http://www.solarvan.co.uk/bms/pbpsla06.txt
The current software hex file for the plain pic 12F683 digital pcb layout is http://www.solarvan.co.uk/bms/PBPSLA06.HEX

Note the above software in blue does not contain or utilise the slave command functions.


The current software text file for the plain pic 12F683 digital pcb layout with commands is http://www.solarvan.co.uk/bms/PicMultiS ... 300510.txt
The current software hex file for the plain pic 12F683 digital pcb layout with commands is http://www.solarvan.co.uk/bms/PicMultiS ... 300510.hex

Note the above software in red is also used with the multi cell slave boards and contains the full command functions. This is the recommended version.
Regards Peter

Two MK1 Honda Insight's. One running 20ah A123 Lithium pack. One 8ah BetterBattery Nimh pack.
One HCH1 Civic Hybrid running 60ah A123 Lithium pack.

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