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Original question:

BQ33100: Super capacitor cell balancing

BQ33100: Supercapacitor learning process

Grishma Tathe
Intellectual 255 points
Part Number: BQ33100
Other Parts Discussed in Thread: BQEVSW

Hi,

I am using bq33100EVM-001 for balancing and monitoring the value of supercapacitor and its ESR measurement.

As I am trying to complete the learning process of supercapacitor but learn cycle fail.  A scope does indicate that the capacitor voltage doesn't actually reach V learn Max. It reaches to 11654mV and starts discharging.

I have updated my initial, design value of supercapacitor and the value of ESR in the data flash screen. SBS screen showing me the exact value of capacitor and ESR. BQEVSW does not calculate the value of the capacitor and ESR.

I want to know what should I do to complete the learning process so the bqEVSW calculate the exact value of capacitor and ESR?

Thank You,

Grishma