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BQ4050: How to design BQ4050, It's for the meter

Neal Zhu
Expert 2470 points
Part Number: BQ4050
Other Parts Discussed in Thread: GPCCEDV

Hi,

A power meter BQ4050 is used in this project. It USES CEDV algorithm, which is different from the Impedance track algorithm.
1. We want to know how to design the BQ4050, specifically, how to deal with the 6 discharge curves of the battery (high, low speed, high, medium and low temperature)?
2: what should I do next?
3. Is there a detailed development process for this type of electric meter? Can you provide it?
4. Is it necessary for each electric meter to learn separately in the cycle when it is used in mass production? Is there any development instruction in this aspect.

  • 0
    TI__Mastermind 42535 points

    Hi Neal,

    1. First please calibrate the gauge

    2. Then obtain the dsg curves required by GPCCEDV and use the online tool to get your CEDV coefficients, this is where you use the 6 curves at different temperatures and rates

    3. Once that is done, please program them and the gauging parameters like design capacity and cycle your battery twice to learn FCC. We unfortunately don't have a CEDV document that goes through the whole procedure, but what I'm teling you is what you need.

    4. Once the FCC is learned, you can use the srec exported from that device for mass production.