Battery Management

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Battery Management

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  • Forum Post: Re: Can bq24005 charge 2 Li-ion cells with an input voltage Vin=5V?

    Chris Rasmussen
    I have an identical need and haven't yet found a good solution. Did you come up with anything? I've wondered about using two bq240xxs and some MOSFETS to connect/disconnect the cells, but it isn't a clean solution.
    on Nov 13, 2009

  • Forum Post: 12 cell Li-Ion in a 3S-4P

    SB36332
    Hi, Just starting to look at this now. We’ve a requirement to build a battery pack for one of our products. The pack is a 12 cell Li –Ion pack, in a 3S-4P configuration , producing a nominal voltage of 11.1 volts with a capacity of 10.4AH by utilizing 2600 mA hour cells. For...
    on Dec 14, 2009

  • Forum Post: backup battery

    lilly
    hello every one.... actually i want power and load management...means when the power supply is ON on that my battery should charge...and if power is gone that battery should backup to my controoler atleast 6 to 8hrs.....ok and here i want 3.3v and 1A current....so i dnt knw how to do it and which...
    on Apr 13, 2010

  • Forum Post: BQ27510 Production Code

    Nick Moore
    I have written the firmware to program the BQ27510 from the three page flow chart from Going to Production with the bq2750x. However, every time I read register 0x66 to see if the data=0x00 I get the data to equal 0x37. Does anyone have any idea why this might be happening? I'm thinking maybe...
    on Jun 22, 2010

  • Forum Post: Gas Gauge for 12V, 6000mAh NiMH battery pack

    Matthew Karau
    I'm looking for a (stand-alone with serial I/F) gas gauge / coulomb counter that is compatible with a 10-cell (12V, 6000mAh) NiMH pack. My searches on TI.com have returned ICs specifically compatible with Li+ and Li-Poly packs or lower voltage NiMH packs. Can anyone advise if these ICs can be easily...
    on Aug 2, 2010

  • Forum Post: ev2300 with 9.59 bqEasy software won't detect

    Allen Vandiver
    Hello, I have version 9.59 of the bqeasy software (downloaded from http://focus.ti.com/docs/toolsw/folders/print/bq20z90evm-001.html ) and I am trying to connect to a bq20z90. I have verified that the chip is actually a bq20z90, though I don't know what version. It won't autodetect the chip...
    on Oct 26, 2010

  • Forum Post: Trouble with BQ20Z75-V180

    Wojciech Rokacz
    Hi. I have problem with BQ20Z75-V180. Before I use the newest version of IC BQ20Z75-V180 I use version BQ20Z75-V160. 1. Software BQEV 0.9.59 does not recognize version IC V180. 2. In software BQEV 0.9.59 I could not find .encr file for this device V180. 3.The Golden File form V160 does not work properly...
    on Jan 13, 2011

  • Forum Post: BQ77PL900 5 - Cells

    Paolo Lisanti
    Hi, I've a problem with five cells connection with IC BQ77PL900. I've read information reported in its tecnical Documents and I've done: - Set Configuration bits (CNF2 = Vreg2 , CNF1 = 0, CNF0 = Vreg2) to Vreg2 (3.3v) by a 100k resistor, or to GND. Is it normal that i read 2.6v at...
    on Jan 19, 2011

  • Forum Post: Can't identify Chemistry ID

    Wojciech Rokacz
    Hi I tried to identify Chemistry ID using the latest software bqEVSW 0.9.65 . Unfortunately, after several hours of communication problems occured after the SMBus . Repeated the process of identifying a few times already . I noticed that the batteries where discharged to the threshold 2500mV causing...
    on Feb 10, 2011

  • Forum Post: Low power battery monitor (7.2V)

    GB
    on May 9, 2011

  • Forum Post: BMS research

    Benjamin Anderson
    I am a student at BYU-Idaho doing a market research project on Battery Monitoring System technology. My sources have led me to TI and I'm interested in learning more about technology that TI is developing to monitor automotive batteries, especially for hybrid vehicles. What do they measure in the...
    on May 19, 2011

  • Forum Post: Is the use of a transformer to isolate an AC power supply to charge a DC system nessisary?

    John Wolgemuth
    In the EV EHV Charger: Level 1&2 diagram it highlights isolation between the AC system and the DC battery pack. Is this isolation provided by the power transformer really nessisary? And if so, why? What benefit does the transformer provide? The diagram specifies a 400+ V battery pack. Is the...
    on May 30, 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: bq3060 cell balancing

    chester cheese
    I am trying to understand if external fets are required for the cell balancing function of the bq3060 to work. I know the other parts using the bq293XX have an internal cell balancing FET but the way I read the TRM and the 3060 cell balance app note is that the external fets are required. I just got...
    on Aug 16, 2011

  • Forum Post: bq76pl536 hardware

    swapnil katre
    i have designed the pcb using bq76pl536 to monitor 5 cells. we have made 5 board to test the circuit. the component used are as shown in the reference schematic in datasheet, but in local market we could get component to solder only 2 board which are working fine. but for rest 3 board, we decided...
    on Sep 16, 2011

  • Forum Post: PowerPump - PowerLan

    Giovanni Gherardi
    I am evaluating the possibility to use PowerPump technology in our system. At the moment we have 16 60Ah LiFePo4 cells in series. My question are: - Max discharge rate is 110A from datasheet, is there any way to extend it to 140-180A - Max cell count is 16 cells. Maybe in future we will move to...
    on Nov 16, 2011

  • Forum Post: PowerPump

    Giovanni Gherardi
    Is it possible to use PowerPump technology with more than 16 cells?
    on Nov 14, 2011

  • Forum Post: ti ev2300 softwares

    aziz lakhani
    hello! can any body provide me ti ev2300 softwares like bq20857,84.... my email adderes is (always_aziz@ymail.com)
    on Feb 12, 2012

  • Forum Post: Can the BQ77PL900 be used to switch off the charge FET when all cells are full?

    olivier evalet
    Hi, I have build a simple 42V 1A power source to plug to my battery pack managed by the BQ77PL900. I'm wondering if I can use the chip as a simple charge control. In fact the power source has a low current of 1A and I guess I only need to switch off the charge when the current equals 1/10C (capacity...
    on Mar 16, 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: bq2022 Programming

    JW
    Is there a recommended method for programming the bq2022/A? The evaluation software would obviously not be efficient for manufacturing.
    on Nov 5, 2012

  • Forum Post: Battery monitor gauge for voltage bus lines in embedded system

    Metallica John
    For one of our upcoming project, we have a battery pack consisting of 12 Energizer L91(Lithium /Iron disulphide AA Battery). We divide this battery pack into three sets of 2 ,5 and 5. In order to have 3 voltage bus rails for the embedded system as the following. Bus1 - 3.0V Bus 2 - 7.5V Bus 3 - 7.5 V...
    on Jan 7, 2013

  • Forum Post: BQ20Z65-R1 compatibility with Panasonic batteries

    Michael Petit
    Hello, I would like to know if your IC BQ20Z65-R1 is compatible with the Panasonic NCR-18650E. Here is a link to the datasheet of this product : http://www.actec.dk/Panasonic/pdf/Cylindriske/NCR-18650E.pdf Kind Regards, Michael Petit.
    on May 7, 2013

  • Forum Post: RE: need help in usage of bq3060 with BqEASY

    santosh bangaru
    Thomas, Is any changes required to the DATA FLASH default data. please share me the information that intially you have got the BMS IC and BqEASY in computer. then what are the setps need to consider.please explain me THanks and Regards Ssntosh
    on May 9, 2013

  • Forum Post: RE: need help in usage of bq3060 with BqEASY

    santosh bangaru
    Thomas, It is not required to update the chemistry like we have done in bq20zxx type IC right? We have got the BMS IC with battery from vendor.We have connected it to BqEASY and tried to log data. initially it is at 18% SOC we have discharge completely.No problem arised while discharging but it is...
    on May 10, 2013
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