Choke for bldc


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Thread: Choke for bldc

  1. #1
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    Default Choke for bldc

    Hi all,

    New to this forum, main hobbies are welding and diy work.

    My chinese milling machine has a toasted bldc card, so i'm building a new one with quality components.


    I googled a lot, and really didn't find the right component, and also right way to connect it.

    This is to protect igbt module from brushless dc overvoltage.....

    Power: 1500 W V bus : 340 V I rated: 4,7A

    SMD value for choke is 680 µ H

    I only want discrete component, not SMD

    Are following components right for the job?

    See links and datasheet.

    And also , how to connect these chokes?

    If i decrease L value, say to 100µF , how igbt will work....

    From phase to phase, phase to ground, or ?


    Thanks a lot.

    jm

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    Choke for bldc-epcos-power-lines-pdf  
    Last edited by JM-M; 03-12-2011 at 06:12 AM.


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