---
+ Post New Thread
Page 5 of 8 FirstFirst ... 34567 ... LastLast
Results 81 to 100 of 143
  1. #81
    Member level 1
    Points: 1,068, Level: 7

    Join Date
    Jan 2010
    Location
    HUDDERSFIELD UK
    Posts
    39
    Helped
    6 / 6
    Points
    1,068
    Level
    7

    Re: i need 12V DC to 220V AC inverter circuit

    the sg3525 only pulses 2 complementary square waves, what additional circuit do i need to make a sinewave at 50hz please help !!!!!


    1 members found this post helpful.

  2. #82
    Advanced Member level 5
    Points: 28,612, Level: 41
    Achievements:
    7 years registered
    Audioguru's Avatar
    Join Date
    Jan 2008
    Location
    Toronto area of Canada
    Posts
    4,661
    Helped
    984 / 984
    Points
    28,612
    Level
    41

    i need 12V DC to 220V AC inverter circuit

    You need a sinewave oscillator circuit. You can make a Wien Bridge sine-wave oscillator with an opamp and use a Jfet for amplitude stabilization.
    the sine-wave modulates the PWM chip.


    1 members found this post helpful.

  3. #83
    Member level 1
    Points: 1,068, Level: 7

    Join Date
    Jan 2010
    Location
    HUDDERSFIELD UK
    Posts
    39
    Helped
    6 / 6
    Points
    1,068
    Level
    7

    Re: i need 12V DC to 220V AC inverter circuit

    once i get it how do i modulate it into the sg3525 pls draw it out for me thanks



  4. #84
    Advanced Member level 5
    Points: 28,612, Level: 41
    Achievements:
    7 years registered
    Audioguru's Avatar
    Join Date
    Jan 2008
    Location
    Toronto area of Canada
    Posts
    4,661
    Helped
    984 / 984
    Points
    28,612
    Level
    41

    i need 12V DC to 220V AC inverter circuit

    My electricity is reliable so I don't need an inverter and I have never seen one.

    I have also never seen an SG3525 IC.

    Isn't this your project? Then do it.



  5. #85
    Member level 1
    Points: 1,068, Level: 7

    Join Date
    Jan 2010
    Location
    HUDDERSFIELD UK
    Posts
    39
    Helped
    6 / 6
    Points
    1,068
    Level
    7

    Re: i need 12V DC to 220V AC inverter circuit

    But i am making an inverter to power the world, woudnt u like to use my energy supply ? would u rather having dangling lines running across ur favourite soap, or if i help me u would have a clear picture on ur tv



  6. #86
    Advanced Member level 5
    Points: 28,612, Level: 41
    Achievements:
    7 years registered
    Audioguru's Avatar
    Join Date
    Jan 2008
    Location
    Toronto area of Canada
    Posts
    4,661
    Helped
    984 / 984
    Points
    28,612
    Level
    41

    Re: i need 12V DC to 220V AC inverter circuit

    Quote Originally Posted by KRYCHEK
    But i am making an inverter to power the world, woudnt u like to use my energy supply ? would u rather having dangling lines running across ur favourite soap, or if i help me u would have a clear picture on ur tv
    What are you talking about?
    I don't have electical wires all over the place in my home. They are hidden inside the walls.
    My TVs have extremely clear pictures and sound.
    I have never used and never seen an inverter. They are used in 3rd world countries and by guys who go to nowhere to shoot animals.



  7. #87
    Member level 1
    Points: 1,068, Level: 7

    Join Date
    Jan 2010
    Location
    HUDDERSFIELD UK
    Posts
    39
    Helped
    6 / 6
    Points
    1,068
    Level
    7

    Re: i need 12V DC to 220V AC inverter circuit

    Well how do u know how to make an sine wave using square waves, u must have done abit of electronics ro know that !!!



  8. #88
    Advanced Member level 5
    Points: 28,612, Level: 41
    Achievements:
    7 years registered
    Audioguru's Avatar
    Join Date
    Jan 2008
    Location
    Toronto area of Canada
    Posts
    4,661
    Helped
    984 / 984
    Points
    28,612
    Level
    41

    Re: i need 12V DC to 220V AC inverter circuit

    Quote Originally Posted by KRYCHEK
    Well how do u know how to make an sine wave using square waves, u must have done abit of electronics ro know that !!!
    I studied electronics and had a career in electronics. I am retired now at 64 years old. My electyricity is very reliable. I have never used, seen nor built an inverter. They are used by poor people in 3rd world countries.



  9. #89
    Member level 1
    Points: 1,068, Level: 7

    Join Date
    Jan 2010
    Location
    HUDDERSFIELD UK
    Posts
    39
    Helped
    6 / 6
    Points
    1,068
    Level
    7

    Re: i need 12V DC to 220V AC inverter circuit

    OMG ! From the way you are commenting you sound like a teen !!!! no offense....

    what career in electronics did u have may i ask kindly

    I am building an inverter for my project, and am in the uk, dont know much about 3rd world countries, i am doing an Msc In electronics



  10. #90
    Advanced Member level 5
    Points: 28,612, Level: 41
    Achievements:
    7 years registered
    Audioguru's Avatar
    Join Date
    Jan 2008
    Location
    Toronto area of Canada
    Posts
    4,661
    Helped
    984 / 984
    Points
    28,612
    Level
    41

    i need 12V DC to 220V AC inverter circuit

    My electronics career was designing car radios, designing and programming very large and very high quality intercom systems, designing, modifying and programming telephone systems and designing and modifying pro sound systems.



  11. #91
    Member level 1
    Points: 1,068, Level: 7

    Join Date
    Jan 2010
    Location
    HUDDERSFIELD UK
    Posts
    39
    Helped
    6 / 6
    Points
    1,068
    Level
    7

    Re: i need 12V DC to 220V AC inverter circuit

    Well it woudnt be very difficult for you to draw out an explanation on how to modulate a sine wave into pwm to drive a h - bridge ? doesnt anyone know the answa to this q, where are all the electronic heroes ?



  12. #92
    Full Member level 3
    Points: 3,129, Level: 13

    Join Date
    Mar 2005
    Location
    Europe
    Posts
    172
    Helped
    51 / 51
    Points
    3,129
    Level
    13

    Re: i need 12V DC to 220V AC inverter circuit

    Well it woudnt be very difficult for you to draw out an explanation on how to modulate a sine wave into pwm to drive a h - bridge ? doesnt anyone know the answa to this q, where are all the electronic heroes ?
    Maybe it would be better for you if you start to study some electronics, instead of relaying on the help from other people!!!
    And because you say you are an Englishman (not like me), it would be better if you will write in English and not in some SMSish jargon!!!



  13. #93
    Member level 1
    Points: 1,068, Level: 7

    Join Date
    Jan 2010
    Location
    HUDDERSFIELD UK
    Posts
    39
    Helped
    6 / 6
    Points
    1,068
    Level
    7

    Re: i need 12V DC to 220V AC inverter circuit

    I do sincerely apologise for writing words that you cannot make out to understand, may it be an english exam or informal,but who gives a flying tit, if your not willing to help or to point in the right direction, why on earth are you on here critisising needly people



  14. #94
    Full Member level 3
    Points: 3,129, Level: 13

    Join Date
    Mar 2005
    Location
    Europe
    Posts
    172
    Helped
    51 / 51
    Points
    3,129
    Level
    13

    Re: i need 12V DC to 220V AC inverter circuit

    But i am making an inverter to power the world, woudnt u like to use my energy supply ? would u rather having dangling lines running across ur favourite soap, or if i help me u would have a clear picture on ur tv
    And does this sentence has any meaning? It seems your mothertongue is not english (maybe engrish?).
    Please study how PWM works and you will be able to drive your SG3525...
    Just a suggestion: you can "create" your sine wave using a micro and its PWM registers.
    It seems you are a really lazy person, but if you will dare to google the following terms:
    "pwm sine wave generation"
    you will find more than enough material to solve your troubles without annoying people with absurd sentences like in the previous quote.



  15. #95
    Full Member level 1
    Points: 2,061, Level: 10

    Join Date
    Dec 2008
    Location
    Bangladesh
    Posts
    108
    Helped
    20 / 20
    Points
    2,061
    Level
    10

    i need 12V DC to 220V AC inverter circuit

    You can buy a book of UPS or IPS design from your local market that provide complete solution related to this.
    I know there are many book that is published by India.



  16. #96
    Full Member level 1
    Points: 3,046, Level: 12
    Fidelis Anyanti's Avatar
    Join Date
    Jun 2006
    Location
    Nigeria
    Posts
    109
    Helped
    17 / 17
    Points
    3,046
    Level
    12

    Re: i need 12V DC to 220V AC inverter circuit

    Making a square wave to sine wave converter is not an easy task. However, it can be done with two stages of integrators, the first one converts the square wave to a triangle wave, and the second stage converts the triangle wave to a sine wave. If the input frequency varies widely then the output amplitude will vary.
    Here is a typical schematic, two identical circuits are required to drive your SG 3525.

    Everyone should be friends, and no more quarrelling. Right ?

    Take control.



    •   Alt10th February 2010, 11:31

      advertising

        
       

  17. #97
    Advanced Member level 5
    Points: 28,612, Level: 41
    Achievements:
    7 years registered
    Audioguru's Avatar
    Join Date
    Jan 2008
    Location
    Toronto area of Canada
    Posts
    4,661
    Helped
    984 / 984
    Points
    28,612
    Level
    41

    Re: i need 12V DC to 220V AC inverter circuit

    Quote Originally Posted by Fidelis Anyanti
    Here is a typical schematic ...
    Next time, please turn off the dots that are all over your schematic, use a white background instead of grey and save it as a very clear compact PNG file type instead of the fuzzy huge JPG file type. Then post it as a PNG file instead of a zipped file.



  18. #98
    Full Member level 1
    Points: 3,046, Level: 12
    Fidelis Anyanti's Avatar
    Join Date
    Jun 2006
    Location
    Nigeria
    Posts
    109
    Helped
    17 / 17
    Points
    3,046
    Level
    12

    Re: i need 12V DC to 220V AC inverter circuit

    Noted, you forgot to say 'Thanks'. A little appreciation.



  19. #99
    Advanced Member level 5
    Points: 28,612, Level: 41
    Achievements:
    7 years registered
    Audioguru's Avatar
    Join Date
    Jan 2008
    Location
    Toronto area of Canada
    Posts
    4,661
    Helped
    984 / 984
    Points
    28,612
    Level
    41

    i need 12V DC to 220V AC inverter circuit

    I said PLEASE for you to make changes next time.
    I say THANKS after my request is done.



  20. #100
    Full Member level 1
    Points: 3,046, Level: 12
    Fidelis Anyanti's Avatar
    Join Date
    Jun 2006
    Location
    Nigeria
    Posts
    109
    Helped
    17 / 17
    Points
    3,046
    Level
    12

    Re: i need 12V DC to 220V AC inverter circuit

    Audioguru,
    I have noted your request. However, the next time i post circuit here just the way you requested and you dont say Thanks, i'll remind you.

    Cheers.



+ Post New Thread
Please login
Page 5 of 8 FirstFirst ... 34567 ... LastLast

LinkBacks (?)

  1. 12th December 2011, 16:59
  2. 5th December 2011, 07:35
  3. 9th September 2011, 04:57