power line communication interface

Discussion in 'The Projects Forum' started by M0sTaFa, Dec 10, 2010.

  1. M0sTaFa

    Thread Starter New Member

    Dec 10, 2010
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    Hi all
    I am working on a project in power line communication, and i need to design an interface with the power line.

    i am using the ST7540 FSK-Transceiver on a frequency of 132.5 KHz

    i can see that i need to design a filter, my problem is do decide the specifications for this filter and how to make this done.
    i will be thankful for any informations. ;)
     
  2. retched

    AAC Fanatic!

    Dec 5, 2009
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    Be careful. That is the BEST info I can give. You can not learn if your dead.

    Obviously you are going to NEED to scope and monitor the signals on the power line, so I would implore you not to die.

    Ever. ;)

    Use a transformer to isolate the line from your probing setup and yourself. Shock hazards are in almost EVERY aspect of your project.

    Filtering out the 50/60hz signal should be relatively easy. Look for line hum filters.
     
  3. M0sTaFa

    Thread Starter New Member

    Dec 10, 2010
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    ha ha :)

    yes, i know that.

    but my problem was in the filter design.
    thank you i will see the hum filters.
     
  4. retched

    AAC Fanatic!

    Dec 5, 2009
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  5. DickCappels

    Moderator

    Aug 21, 2008
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  6. M0sTaFa

    Thread Starter New Member

    Dec 10, 2010
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    thank you every body. :)

    i have one more quassion, if any one have used the ST7540-Transciver, i need to know what hapen if it detect signal on both the logic one, and the logic 0 filters, what will be his dession (1 or 0 )????? :( :|

    please help me
     
  7. Engr.sjsharma

    New Member

    Dec 1, 2011
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    dear im also working on this interface if u have got proper things kindly share with me.thnks in advance
     
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