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bq500110EVM
Related Posts

  • Forum Post: bq500110EVM-688 eval module

    ken krone
    the bq500110EVM eval kit docs (SLVU429A) includes schematics ....the lower left portion of page 7 shows continuation of a demodulation circuit with an input from COIL_CURRENT which then connects to a couple of back-to-back schottky diodes.... seems like the diodes attempt to optimize the dc bias for...
    on Aug 10, 2011

  • Forum Post: Re: My client would like to know if there are any future plans to offer comms over the wireless power link.

    Vladimir Muratov
    Hello Chad, The WPC communication protocol has provisions for propriatary packets that can be used to pass limited user information from the receiver to transmitter. What would be needed to have controllers on both sides of the wireless link capable interfacing these information. These are not...
    on Aug 10, 2011

  • Forum Post: BQ500110 coil_pwm problems

    dean k
    Hello E2E community, I am currently debugging a design based on the BQ500110-EVM and the BQ51013-EVM. When I apply power to the BQ500110 and probe the COIL_PWM pin I do see the three 100kHz pulses except they occur every 0.4 sec instead of 0.5 sec (EVM user guide states it should be 0.5 sec...
    on Aug 22, 2011

  • Forum Post: Re: BQ500110 coil_pwm problems

    Vladimir Muratov
    Hello Dean, All your observations are correct. The 0.4s repetition rate you observing is the right number. The WPC spec requires detection of the receiving devise in no more than 0.5s. Considering some processing time needed, the 0.4s ping repetiton rate has been implimented in BQ500110. The...
    on Aug 22, 2011

  • Forum Post: Re: BQ500110 coil_pwm problems

    dean k
    Hello Vladimir and thank you very much for your informative response. Now that i know the BQ500110 seems to be switching the coil correctly, I have moved onto debugging the reviever side/communication channels. When I first place my reciever on the transmit coil (there is about 5mm spacer between...
    on Aug 23, 2011

  • Forum Post: Re: BQ500110 coil_pwm problems

    dean k
    Just a follow up on the last post I made: I fixed the errors I had with my demodulator circuit and the receiver is now communicating with the transmitter. The 500110 is no longer indicating faults when i place the receiver coil closer than about 5mm to the transmit coil. The last problem with my...
    on Aug 24, 2011

  • Forum Post: Re: BQ500110 coil_pwm problems

    Vladimir Muratov
    Dean, I glad you reselve most of the issues. Per WPC maximum guranteed distances between coils is 5mm. The distance should be measured from coil to coil. It means that plastic covers in TI bqTesla kit should be included into this 5mm. Can you provide the details how you power bq500110 up. Are...
    on Aug 24, 2011

  • Forum Post: Questions on slight bqTESLA changes

    Benjamin Izquierdo
    Hello, We're taking a look at both bq500110EVM-688 and bq51013EVM-725 to satisfy some potential customers requirements and wanted to take advantage of your knowledge and experience. 1- working with the aforementioned EVM I noticed that the receiver didn't ask for the End of Power Transfer...
    on Sep 13, 2011

  • Forum Post: Re: charging through a non-ferrous medium

    Vladimir Muratov
    Hello Kyle, You will find very little difference in efficiency if you use dielectric materials. Efficiency will degrade slightly when distance between coils increases. The WPC technology is not intended to cover distance substantially higher than 5mm. Any conductors or ferrous materials will...
    on Sep 26, 2011

  • Forum Post: bq25046evm-687 unstable

    LINGYU LIU
    Hi, currently i am testing on bq25046evm-687 with bq500110evm-688. the problem is the receiver could not work properly with resistor that lower than 60 ohms, the system will be unstable and the current jump up and down quickly. I have tried to connect receiver to a cell phone also, the problem is...
    on Jan 30, 2012

  • Forum Post: Re: Qi devices transmission range

    Bill Johns
    Hello Moshe The distance of 12cm is a little far for the present WPC standard. It may be possible to transfer some power but also the receiver has to send commands back to the transmitter through load modulation. If receiver cannot communicate with the transmitter power transfer will stop. The...
    on Feb 9, 2012

  • Forum Post: Re: bq51013EVM-725 unable to work with transmitters

    Bill Johns
    Hello Lingyu Sorry you are having problems with the Gen2 kit along with the Gen1 kit. Could you look at the 19V input to the transmitter EVM. Verify that it is solid with now dips, voltage must be 19V +/- 1V. Some customers have had problem with input power supplies entering current limit during...
    on Feb 13, 2012

  • Forum Post: Re: BQtesla EVM

    Vladimir Muratov
    Hello Alexander, The CoilDis function is used to dump the coil oscillation during Analog Ping. The function is only present in BQ500110 EVM and there is no such function in BQ500210. Making changes to the resistor value will not improve the operating range. There is no provisions in both controllers...
    on Mar 12, 2012

  • Forum Post: Re: Gerber and ASCII files for the bq500210EVM-589 design

    Bill Johns
    Hi Graham The design files for bq500210EVM-689 are in PADS. Attached are the ASCII version of the schematic and layout, it may be possible to import them. B/R Bill (Please visit the site to view this file)
    on Mar 29, 2012

  • Forum Post: Re: Gerber and ASCII files for the bq500210EVM-589 design

    Bill Johns
    Attached are Gerber files for bq500210EVM-689. Bill (Please visit the site to view this file)
    on Mar 29, 2012

  • Forum Post: Re: Gerber files for the reference design in the BQ500110EVM

    Bill Johns
    Hi Roger The design files for bq500110EVM-688 are in PADS. Attached are the ASCII version of the schematic and layout, it may be possible to import them. Bill (Please visit the site to view this file)
    on Mar 29, 2012

  • Forum Post: bq 500210 PCB Manufacturer

    Ruediger Nitz
    Hi to all, somebody knows a company they can supply PCB Boards like the EVM without antenna and without test connectors? THX
    on Apr 11, 2012

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