Battery Management system

[opalstear]

I want to make a BMS for 48Vdc 30ah storage

SO I'm learning about BMS..

But It's really difficult for me.

I saw a BMS and I can't understand..

I think he or she use a voltage detector and high current regulator..

1. and I don't know the purpose of it.. (um.. maybe for protection ??)

and.. I want to know how it works.

2. I want to know how to protect batteries.

Could you tell me popular methods and basic concepts for it?

(Even though you tell me a little, I appriciate. I'll google it. +_+ )

I think I need to learn about Thyristor and dangling transistor and

relay..

For me, I feel like I should learn everything, Could you give me some

hints?

3. I have a question about "LM431 over voltage/under voltage protection

circuit" (The circuit is in LM431's datasheet.)

Could you explain the circuit? Please..

How can I use it as a battery protecting circuit..?

4. I can't understand the charge mechanism...

In case, All the batteries are connected in series..

Let's say I just care about one battery.

and the battery is overcharged, then How can I express the

5A current? just using Ideal 5A current source? or the other?

5. Could you recommand a book or a website which I could learn BMS a lot?



I appriciate you for reading a long post.

whatever it is, If you give me a hint or some information,

It will be really helpful..

Thank you, Have a nice day!!