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learning cycle
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  • Forum Post: Re: Impedance track update failure on bqEasy / bq20z95

    Jackie Hui
    Hi Neil, - VOK - Here is the VOK set and cleared conditions. This information is posted in our KnowledgeBase ( http://www-k.ext.ti.com/sc/technical-support/analog-kbas ) - a knowledge sharing place we use before having a forum. VOK set condition is that last OCV reading is qualified for Qmax...
    on Mar 9, 2010

  • Forum Post: Re: Using a BQ27510 EVM

    dMax
    I'm assuming you have completed the prior steps in bqEASY before reaching step 5 (Learning Cycle). At this point you must be using the actual cell that you plan to use in production. You must also have identified the best ChemID match to your cell in step 4 of bqEASY and programmed the corresponding...
    on Mar 17, 2010

  • Forum Post: Re: BQ27510 bqeasy error "Dataflash.GasGauging.State.UpdateStatus does NOT = 2"

    Phil54870
    ...another day over, another day hoping in vain. The flags VOK and QEN keep staying zero. Unless you can point out a reason in my configuration, I'm giving up. I now understand, why competitors advertise their component with "no training cycle needed"... Please email a configuration...
    on Aug 12, 2010

  • Forum Post: Re: bq27350 questions on learning cycle, RUP_DIS, Update status and the FC bit

    Ming Yu
    Jenny, I assume you have selected the correct chem ID already 1. make sure the FC bit is set after charge to full 2. When start the cycling to learn Ra, make sure RUP_DIS is cleared to start with. This bit can be cleared by FW once a well relaxed cell it detected (may take 30min to 2hr), or...
    on Aug 18, 2010

  • Forum Post: Re: bq27350 questions on learning cycle, RUP_DIS, Update status and the FC bit

    Ming Yu
    1. what is the discharge rate? 2. is there any interruption during the discharge? 3. can you attached the log data? 4. to re-do learning cycle, I suggest to reload the original FW and load chemistry to start from fresh state. Thanks Ming
    on Aug 19, 2010

  • Forum Post: Re: bq27350 questions on learning cycle, RUP_DIS, Update status and the FC bit

    Ming Yu
    Jenny, this may be caused by ADC ground selection. I have to check FW team to find out what ground is being used in bq27350 code. However, this should not prevent the Ra update. The gg file looks ok to me. When you run the learning cycle, did you log the RAM data? If not, can you re-run the learning...
    on Sep 15, 2010

  • Forum Post: Re: Problem creating golden file.....BQ27510_V1.11...I try since 6 month in vain :-(

    Ming Yu
    Matthias, Sorry to know that you have been struggling to get the golden image for such larger capacity battery (18.9Ah). Normally, the learning cycle is using C/2 for charging and C/5 for discharging. If the charge cycle and discharge cycle take too long, gauge will disable the learning due to...
    on Mar 1, 2011

  • Forum Post: Help with bqEasy chemistry test

    Nicholas Alunni
    Hello, I'm trying to determine my batteries chemistry to calibrate the bq20z65EVM but I'm running into quite a few problems. I was hoping someone here might be able to help me. I'll do my best to describe what I've done so far and the problems I'm facing. Process: I've...
    on Jun 7, 2011

  • Forum Post: Impedance Track Battery Charging Question

    Nicholas Alunni
    Hello, I have a question about charging the batteries for the first step of the bqEasy "5. Cycle" process. I am using a 2s1p cell with two 4.2V 4400mAh batteries. 1) Should I charge the batteries while connected to the bq20z65EVM while the Impedance track is "Initialized" (QEN...
    on Jun 17, 2011

  • Forum Post: Re: Impedance Track Battery Charging Question

    Viktoriya Sherman
    1) Yes, you should initialize IT for the learning cycle. 2) Yes, the bq20z65EVM has a continuous auto cell balancing feature but it is best to use a balanced pack for the learning cycle. B) You should charge your batteries through pack+/-. Regards, Viktoriya
    on Jun 17, 2011

  • Forum Post: bq20z65EVM CHGFET and DSGFET Quick Question

    Nicholas Alunni
    Hello, I noticed that when I'm discharging through the EVM the CHGFET and DSGFET are on, when I thought it would be just the DSGFET. I noticed that when I'm charging through the EVM the CHGFET and DSGFET are on, when I thought it would be just the CHGFET. Can someone please explain or...
    on Jun 17, 2011

  • Forum Post: Re: BQ78PL116 & BQ76PL102 with LiFePO4 and generally

    Fred Chang
    Hi Aloni, thanks for your reply! now I use the cell simulator to simulate 2.1~2.5V/cell with 4S1P. but when I'm going to open bqWizard, there's a warning: "Unable to connect to device. Please check power and the connections to the hardware." and both the pin VLDO1 and...
    on Aug 17, 2011

  • Forum Post: Using the Chem.log file produced during chemistry learning cycle by the TI EVSW with the EV2300...

    Ez430_User
    Is there a way to associate an unlisted Li Ion cell to the best match known chem id using the Chem.log file produced by the TI EVSW with the EV2300 during the automated chem learning cycle? If so, how? If not, can this association be done manually? Logged data and graph are attached, I hope. Thanks in...
    on Aug 26, 2011

  • Forum Post: bq27500-v130 Learning Cycle Failed!

    Robert Blake
    Hi All, I'm having some trouble achieving a successful learning cycle on my battery in bqEASY with the bq27500-v130. I've probably run the thing a half a dozen times so far, and every time it fails with the "UpdateStatus does NOT = 2" error message. I've been through all of...
    on Oct 11, 2011

  • Forum Post: BQ27000: learning cycle

    Anonymous Anonymous
    Hi, I would like to ask a question on BQ27000. I repeatedly see term "learning cycle" in BQ27000 datasheet, yet without finding in it a definition for it. A Google search learning cycle site:ti.com returns Application Report SLUA597 Achieving The Successful Learning Cycle , yet it...
    on Nov 3, 2011

  • Forum Post: Re: BQ27541-V200 Accuracy at Low SOC

    Lance Collins
    Mike, I have attached the golden image leaning log for the battery. (Please visit the site to view this file) Let me know what you think,
    on Feb 6, 2012

  • Forum Post: Questions and Issues with BQ27501 EVM

    Daniel Terpstra
    Hey, I am using the bq27500/1 EVM to, well, evaluate the fuel gauge. My set-up includes a DC power supply and electronic load, both controllable through GPIB, as well as a second DC power supply, DAQ, sense resistor, and a 1500mAh cell phone battery. I have had a great number of questions and issues...
    on Mar 15, 2012

  • Forum Post: bq2014H send soft DONE trough HDQ

    abraham gonzalez
    I'm using a bq2014H and I'd like to know whats the procedure to send a "charging is DONE" command to trough the HDQ communication. The datasheet describes the procedure to make a reset via software by writing zeros to some registers. I know there's a DONE pin which on high...
    on Apr 13, 2012

  • Forum Post: bq78PL116EVM Aux file logging

    Bob White
    Hi Community, Three questions regarding .csv file data logging: 1. Do I need to keep polling and logging during my overnight cell rest period. 2. Is there a recommended chemistry file for modern generic Chinese hobbyist LiPos? I'm using chem 107 (the newest default?) with a 7s1p 10Ahr battery...
    on Apr 16, 2012

  • Forum Post: bq2014H send soft DONE trough HDQ

    abraham gonzalez
    Hi, I'm using a bq2014H (I can't change it to bq2060) and as far as I know, on battery change event the user MUST fully charge and then fully discharge so the device can "learn" the new capacity of the batteries. I also know there's a DONE pin which on high state automatically...
    on Apr 13, 2012

  • Forum Post: bq24650 Battery Charger Application

    clive seguna
    Dear All, I am new and beginner in the design of SMPS used for battery chargers and hence I would like to make use as reference to the applications notes found in TI website (listed in below atachments, i.e. SLVA437–September 2010 and Application Note U-166) to design and implement a battery...
    on Aug 24, 2011

  • Forum Post: "Testing Boris Fix" Error During AutoCycle

    Nicholas Alunni
    Hello, I’m trying to AutoCycle my batteries. I found an interesting error where during an autocycle, at the completion of every scan a “Testing Boris Fix” error pops up on the screen. This locks up the program until the user clicks “OK” and stops the computer from...
    on Jun 29, 2011

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