FERCSA
Member
- Joined
- Jan 16, 2017
- Messages
- 87
Hi!
I started thinking about a very simple cell balancing system. Of course passive, but smart. Basically every pack gonna get a balancer module then daisy chained together. So only 3wires needed because of the i2c line and gnd. The power come from the pack, before you ask my guess is the consumption in idle should be around a few mA. Then all data goes to the master module for data collection, monitoring, display on a web interfaceetc.. Option for configuring every balancer module from the master.
The specs is the following:
-it can be used in stand alone mode aka top balancing the cell on default.
-bottom balancing is a option if master is present.
-configurable over voltage and low voltage threshold
-isolated data(i2c) connections!
-max. 2A or 4A balance current, both are possible because the selected mosfet can handle it.
-more than one temperature sensor for safety
-cheap-o, my guess is around 6-7EUR per module, but definitely under 10EUR.
What do you think? Any suggestion? Any otherfunctiondo you like to see?
OrI should scrape the whole thing then reverse engineer the longmon's protocol?
I started thinking about a very simple cell balancing system. Of course passive, but smart. Basically every pack gonna get a balancer module then daisy chained together. So only 3wires needed because of the i2c line and gnd. The power come from the pack, before you ask my guess is the consumption in idle should be around a few mA. Then all data goes to the master module for data collection, monitoring, display on a web interfaceetc.. Option for configuring every balancer module from the master.
The specs is the following:
-it can be used in stand alone mode aka top balancing the cell on default.
-bottom balancing is a option if master is present.
-configurable over voltage and low voltage threshold
-isolated data(i2c) connections!
-max. 2A or 4A balance current, both are possible because the selected mosfet can handle it.
-more than one temperature sensor for safety
-cheap-o, my guess is around 6-7EUR per module, but definitely under 10EUR.
What do you think? Any suggestion? Any otherfunctiondo you like to see?
OrI should scrape the whole thing then reverse engineer the longmon's protocol?