need help

Discussion in 'General Electronics Chat' started by ht systems, Aug 21, 2011.

  1. ht systems

    Thread Starter Member

    Aug 2, 2011
    71
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    would anyone give me an idea about building an ac inverter 100 hz using 555 circuit ?
     
  2. TBayBoy

    Member

    May 25, 2011
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  3. bertus

    Administrator

    Apr 5, 2008
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    Hello,

    More information is needed to give a good answer.
    What will be the purpose of this inverter?
    What power is needed?

    Bertus
     
  4. ht systems

    Thread Starter Member

    Aug 2, 2011
    71
    1
    the inverter is for AC motor 220 v 50 hz its 4 A , i want to make it 0 to 120 hz 220 v
     
  5. SgtWookie

    Expert

    Jul 17, 2007
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    That inverter takes a DC input, and gives a negative DC output. I think that "ht systems" is looking for an AC inverter, based on this thread:

    http://forum.allaboutcircuits.com/showthread.php?t=58136

    I'd replied to that thread over a week ago, going into some details about the impracticality of the idea, but maybe they thought they would get a different answer this time?
     
  6. bertus

    Administrator

    Apr 5, 2008
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  7. ht systems

    Thread Starter Member

    Aug 2, 2011
    71
    1
    the motor is to fix the cutting tool
     
  8. SgtWookie

    Expert

    Jul 17, 2007
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    Was the motor designed to run from 220v 100Hz ~4A? Or was it designed to operate from 50Hz?

    Here in the USA, we have 120V 60Hz power from wall outlets, and there is usually also 240V available for large appliances like stoves, clothes dryers, heating/AC plants, etc.

    In most other parts of the world, 220VAC 50Hz is the standard.

    Do you have AC power available, or are you planning on trying to operate this inverter from a large bank of batteries?
     
  9. ht systems

    Thread Starter Member

    Aug 2, 2011
    71
    1
    in my country , the power supply is 220v 50 hz and the motor design is 220v 50 hz and i cant change its design and i want to make the motor work on 100 hz 220 v to take its speed higher as i calculate
     
  10. SgtWookie

    Expert

    Jul 17, 2007
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    What country are you in? Right now, all we know is that you are not in the USA. We have no idea what parts you might be able to buy where you are.
     
  11. ht systems

    Thread Starter Member

    Aug 2, 2011
    71
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    well , i live in syria - aleppo and trust we have a huge electronic parts market , i can buy anything i want
     
  12. Kermit2

    AAC Fanatic!

    Feb 5, 2010
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  13. ht systems

    Thread Starter Member

    Aug 2, 2011
    71
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    thank you so much
     
  14. ht systems

    Thread Starter Member

    Aug 2, 2011
    71
    1
    would it give 100 hz ?
     
  15. SgtWookie

    Expert

    Jul 17, 2007
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    Those types of inverters are not very good. Very inefficient, no output voltage regulation, poor frequency stability. Besides, that one was designed to run from a 12v battery. Since you have 220v available, yours should be operated from 220v to minimize losses.

    But, that would require a good bit of experience to design and build it - and by your previous and current questions, I don't think that you have yet learned the skills that will be necessary for such a project.

    You really need to start out with some much smaller projects.
     
  16. ht systems

    Thread Starter Member

    Aug 2, 2011
    71
    1
    ok , i see , so i cant build an inverter
     
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