AC Electronic Load Schematic

Discussion in 'The Projects Forum' started by cooldesire, Apr 27, 2012.

  1. cooldesire

    Thread Starter New Member

    Jan 4, 2012
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    Can anyone help me finding an ac electronic load schematic for testing minimum 1A(rms), 48V(rms) Ac sources(with or without rectification). It is very important for me, my final year project...
     
  2. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
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    Just use a light bulb...
     
  3. wayneh

    Expert

    Sep 9, 2010
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    Or a heating element.
    Or a power resistor, depending on the amount of load you want.
     
  4. crutschow

    Expert

    Mar 14, 2008
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    What do you mean by "ac electronic load"?
     
  5. cooldesire

    Thread Starter New Member

    Jan 4, 2012
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  6. paulktreg

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    Jun 2, 2008
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    I've been researching DC electronic loads utilising MOSFET's for a while now so I wonder if the AC from the device under test was rectified first would it do the job? Worth looking into?
     
  7. cooldesire

    Thread Starter New Member

    Jan 4, 2012
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    In the net, there are lots of DC electronic load schematics, but no AC electronic load :(
    I've searched and researched... couldn't get almost anything about it.
    If things continue to happen like this, I'll fail the course... please help me... :(
     
  8. #12

    Expert

    Nov 30, 2010
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    Electronic AC loads are not hobby stuff. The one you referred to in post #5 probably costs several hundred dollars.

    What are you in the final year of? High school? Trade school? Harvard? BSEE? PhD?
    What level of schooling asks for an electronic AC load?
     
  9. cooldesire

    Thread Starter New Member

    Jan 4, 2012
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    undergraduate student,
    my project consist of only one part of post #5
    i.e, ac load simulation in cc mode (that is enough for me :D)
    pc interface, large voltage-frequency and current range is not important for me,
    I just test an ac source in constant specifications...
     
  10. #12

    Expert

    Nov 30, 2010
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    Now we're getting somewhere. Defining exactly what you want might get some answers.

    I see, "ac load simulation in CC mode".

    I am not competent to answer that but the more you tell the better your answers will be.
    Keep talking. Describe what you have so far and what you want that you don't have.
     
  11. cooldesire

    Thread Starter New Member

    Jan 4, 2012
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    I tried to simulate a circuit is taken place IEEE paper about "study on ac active load simulator" and worked on over "dc electronic load" for ac operation, but I couldn't succeed... Finally I decided to ask someone and right now I'm here ...
     
  12. #12

    Expert

    Nov 30, 2010
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    Can you post links to those references?
     
  13. cooldesire

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    Jan 4, 2012
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  14. #12

    Expert

    Nov 30, 2010
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    Ouch. Not likely anybody here is willing to pay $31 for that paper. What can you tell about about your studies (that isn't in violation of copyright law)?
     
  15. #12

    Expert

    Nov 30, 2010
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    I got this without violating any laws.

    An AC active load simulator is realized and tested which can simulate an AC load impedance excited by an AC voltage source. An interface circuit is designed to compute the simulated current waveform for the load-driver circuit according to the specified impedance network and the measured source frequency and voltage amplitude. Both inductive and capacitive loads can be simulated by adjusting the phase difference between the voltage and current waveforms. A software feedback control approach is employed to adjust the current amplitude for the purpose of maintaining the impedance value constant regardless of the variation of the source voltage amplitude (for more, send money).
     
  16. cooldesire

    Thread Starter New Member

    Jan 4, 2012
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    I shared only public abstract(not full text) of IEEE paper...
    Is this contrary to forum rules?
     
  17. #12

    Expert

    Nov 30, 2010
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    You shared a link to it. I brought it here so other people don't have to go look for it. I believe this is not in violation of any rules.

    I would have to ask a moderator if sharing what you paid for is unlawful.
    I am asking now.

    Regardless of how that turns out, I believe you are allowed to use your own words to describe what you've learned and/or make a schematic or block diagram of your own work and post that here.
     
    Last edited: Apr 29, 2012
  18. cooldesire

    Thread Starter New Member

    Jan 4, 2012
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  19. cooldesire

    Thread Starter New Member

    Jan 4, 2012
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    over the "dc electronic load" for ac operation

    we can talking about it, I couldnt simulate exactly...
     
  20. Ron H

    AAC Fanatic!

    Apr 14, 2005
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