What are the pros and cons of BMS?
I'm planning to build an microcontroller based BMS which have individual cell based voltage monitoring and central controller which reads all individual BMS clients data.
Total of 16 LiFePo4 cells of 40 to 60 Ah.
He's making a little joke there. Professionals are often called pros for short and criminals are often referred to as cons, short for convicts. I guess if the USA variant of English is not your first language the bit of humor would read more like nonsense.I'm sorry but I don't follow. Do you mean that BMS does some harm to individual cells or why cons are on cells side?
Oh, I see. That's why I didn't understand that. My mistake. I'm sorry.He's making a little joke there. Professionals are often called pros for short and criminals are often referred to as cons, short for convicts. I guess if the USA variant of English is not your first language the bit of humor would read more like nonsense.
optocouplers.Has anyone come by with a schematics of an uC based BMS's? Care to throw a link maybe?
Otherwise it's pretty straighforward but the communications between individual cells are little bit a problem? How others have implemented that? Obviously the common ground is not an option so a somekind of an galvanic separation is a necessity.
You are joking, right? Of course it's optocouplers.optocouplers.
Actually MiniBMS has nothing to do with digital BMS, if I have read the correct MiniBMS documents. Doesn't it just indicate if something is wrong with one of the cells (not even exact cell)?Search for 'minibms' on this and other related forums. There is a lot of material available. The way you are thinking (if I am correct) seems to be close to what the minibms digital system is doing. It is worth checking it out and then coming back with some questions.
Yes, you are right. That's how it work.If I recall correctly, I think the MiniBMS will trigger by opening the NC signal wire but the unit on the particular cell that triggered it will have a fault light lit.
This is more likely a "nice to have" feature rather than necessity. Although the problem cell watchguard would be usefull as the individual cells in this case can not be easily observed.I don't think you need to hunt for the problem cell.