---
+ Post New Thread
Page 1 of 3 123 LastLast
Results 1 to 20 of 48
  1. #1
    Newbie level 5
    Points: 1,648, Level: 9

    Join Date
    Jan 2007
    Posts
    9
    Helped
    2 / 2
    Points
    1,648
    Level
    9

    sine wave inverter schematic

    hi.. can someone pls help??? am looking for 12vdc-220vac 100/200watts sinewave inverter. can someone post up a schematic diagram with the above citeria?? looking forward for a diagram that have been tried out and is successful, and included with component list. A 12vdc-220vac 100/200watts Square wave inverter also can.but can tell how to change the square wave to sine wave. thanks.

  2. #2
    Advanced Member level 1
    Points: 3,085, Level: 13

    Join Date
    Sep 2006
    Posts
    440
    Helped
    44 / 44
    Points
    3,085
    Level
    13

    sine wave inverter schematics

    You should consider whether you need sinewave or not, since the sinewave inverter must be complicated, hard to be calibrated, big size, heavy, and very low efficient.

    Just look for it in the internet by google, or design it by yourself with the 50/60Hz sinewave oscillator with an audio power amplifier.

    nguyennam


    2 members found this post helpful.

    •   Alt15th January 2007, 04:16

      advertising

        
       

  3. #3
    Newbie level 5
    Points: 1,648, Level: 9

    Join Date
    Jan 2007
    Posts
    9
    Helped
    2 / 2
    Points
    1,648
    Level
    9

    sine wave inverters

    oic. so u mean i can use a sinewave oscillator to get sinewave, from a schematic diagram which produce squarewave. okok.


    1 members found this post helpful.

  4. #4
    Full Member level 4
    Points: 3,419, Level: 13
    aNdreiBuuu's Avatar
    Join Date
    Apr 2001
    Location
    moon
    Posts
    225
    Helped
    23 / 23
    Points
    3,419
    Level
    13

    sine wave inverter schematic diagram

    A 12vdc-220vac 100/200watts Square wave inverter also can.but can tell how to change the square wave to sine wave. thanks.
    ... use PWM and a low pass filter to transform square wave to sine...

    hope this helps,
    //a


    5 members found this post helpful.

  5. #5
    Newbie level 5
    Points: 1,648, Level: 9

    Join Date
    Jan 2007
    Posts
    9
    Helped
    2 / 2
    Points
    1,648
    Level
    9

    12vdc to 220vac sine wave inverter circuit

    am analysing this inverter schematic diagram...



  6. #6
    Newbie level 5
    Points: 1,648, Level: 9

    Join Date
    Jan 2007
    Posts
    9
    Helped
    2 / 2
    Points
    1,648
    Level
    9

    500w 12vdc to 220vac inverter schematic

    this is square wave oscillator from the above diagram..



  7. #7
    Newbie level 5
    Points: 1,648, Level: 9

    Join Date
    Jan 2007
    Posts
    9
    Helped
    2 / 2
    Points
    1,648
    Level
    9

    schematic diagram of sine wave inverter 500w

    can i replace the above square wave oscillator to this sinewave oscillator circuit??
    Can i get a sinewave inverter from there ??



  8. #8
    Advanced Member level 1
    Points: 3,085, Level: 13

    Join Date
    Sep 2006
    Posts
    440
    Helped
    44 / 44
    Points
    3,085
    Level
    13

    12vdc to 220vac converter

    evelyn, you had better to stop at this page:
    http://www.electronics-lab.com/forum...ic=471.msg1949

    This is a very good thread about DC-AC sinewave inverters, from simple to complex designs, you will be easy to understand and pick out one you like.

    Inverting DC voltage to AC sinewave is not a easy design technique, so if you chase this idea, you have to invest time, effort, and money there.

    In the market there are also the ready made models.

    nguyennam



    •   Alt18th January 2007, 11:41

      advertising

        
       

  9. #9
    Member level 3
    Points: 3,926, Level: 14

    Join Date
    Dec 2006
    Posts
    55
    Helped
    1 / 1
    Points
    3,926
    Level
    14

    square to sine wave converter




  10. #10
    Full Member level 5
    Points: 3,736, Level: 14

    Join Date
    Apr 2001
    Location
    Iran
    Posts
    240
    Helped
    21 / 21
    Points
    3,736
    Level
    14

    inverter 12vdc to 220vac sin wave

    use HIP4082 application note for switching design


    1 members found this post helpful.

    •   Alt1st April 2007, 08:18

      advertising

        
       

  11. #11
    Newbie level 1
    Points: 598, Level: 5

    Join Date
    Aug 2009
    Location
    uk
    Posts
    1
    Helped
    0 / 0
    Points
    598
    Level
    5

    12vdc power supply schematic

    whats the differnce between sinewave and square sign inverter please reply as i am interested in making 1 or the other thanx



  12. #12
    Advanced Member level 4
    Points: 19,911, Level: 34
    Aya2002's Avatar
    Join Date
    Dec 2006
    Location
    Malaysia
    Posts
    1,143
    Helped
    394 / 394
    Points
    19,911
    Level
    34

    schemetic square wave to sine wave converter

    Quote Originally Posted by nguyennam
    evelyn, you had better to stop at this page:
    http://www.electronics-lab.com/forum...ic=471.msg1949

    This is a very good thread about DC-AC sinewave inverters, from simple to complex designs, you will be easy to understand and pick out one you like.

    Inverting DC voltage to AC sinewave is not a easy design technique, so if you chase this idea, you have to invest time, effort, and money there.

    In the market there are also the ready made models.

    nguyennam
    i see the file is not presented, can you guide me to it?

    thanks


    1 members found this post helpful.

  13. #13
    Advanced Member level 5
    Points: 28,278, Level: 41
    Achievements:
    7 years registered
    Audioguru's Avatar
    Join Date
    Jan 2008
    Location
    Toronto area of Canada
    Posts
    4,580
    Helped
    966 / 966
    Points
    28,278
    Level
    41

    schematic diagram 100w inverter

    Many electronic products do not work properly from a square-wave because their power supply charges the main filter capacitor to the peak voltage of a sine-wave. But the peak voltage of a square-wave is less. If the peak voltage of a square-wave is made the same voltage as the peak voltage of a sine-wave then heaters and incandescent light bulbs would burn out.

    Electronic motor speed controls and light dimmers do not work from a square-wave.


    1 members found this post helpful.

  14. #14
    Advanced Member level 4
    Points: 19,911, Level: 34
    Aya2002's Avatar
    Join Date
    Dec 2006
    Location
    Malaysia
    Posts
    1,143
    Helped
    394 / 394
    Points
    19,911
    Level
    34

    sine wave inverter design

    Quote Originally Posted by Audioguru
    Electronic motor speed controls and light dimmers do not work from a square-wave.
    they are work but but but not properly and some times may be damaged


    1 members found this post helpful.

  15. #15
    Member level 4
    Points: 3,654, Level: 14

    Join Date
    Dec 2007
    Posts
    75
    Helped
    11 / 11
    Points
    3,654
    Level
    14

    how to change square wave inverter to sine wave

    [/i][/b][i] YES IT IS NOT A VERY EASY JOB BUT NOTHING IS

    IMPOSIBEL. YOU SHOULD TRY WITH A 12V 3A TRABSFORMER'S PRIMRY WINDING

    IN SERIES WITH OUT PUT & ADD A 4.7U TO 10U (600V D.C) NON POLER

    POLYPERPLYNE CAPACITOR AFTER TRANSFORMER WINDING. BUT THIS WILL

    GIVE ALOT OF TUFF TIME TO YOUR SQURE WAVE INVERTER (OUT PUT CAPACIY

    WILL GO TD HALF )

    :cry:



  16. #16
    Newbie level 6
    Points: 801, Level: 6

    Join Date
    Apr 2010
    Location
    Coimbatore
    Posts
    13
    Helped
    2 / 2
    Points
    801
    Level
    6

    Re: 12vdc-220vac 100/200watts sinewave inverter

    Hi.. evelyn..

    I need input and output points clearly for your inverter schematic(Doc 4), you have uploaded.


    1 members found this post helpful.

  17. #17
    Junior Member level 1
    Points: 453, Level: 4

    Join Date
    Oct 2010
    Location
    rawalpindi pakistan
    Posts
    17
    Helped
    0 / 0
    Points
    453
    Level
    4

    Re: 12vdc to 220vac converter

    hi all.
    what is effect of different wave?



  18. #18
    Advanced Member level 5
    Points: 28,278, Level: 41
    Achievements:
    7 years registered
    Audioguru's Avatar
    Join Date
    Jan 2008
    Location
    Toronto area of Canada
    Posts
    4,580
    Helped
    966 / 966
    Points
    28,278
    Level
    41

    Re: 12vdc to 220vac converter

    Quote Originally Posted by ziad khan View Post
    hi all.
    what is effect of different wave?
    A cheap old inverter has a square-wave output that is fine for heaters and incandescent light bulbs. It is missing the higher peak voltage of a sine-wave so many electronic items and electronic speed controls will not work.

    A pure sine-wave is the same as from the mains and runs everything that works from the mains.

    A modified sine-wave (which is actually a modified square-wave) Is a blocky wave with the higher peak voltage almost like a sine-wave and runs most things that work from the mains.



  19. #19
    Banned
    Points: 4,222, Level: 15

    Join Date
    Nov 2009
    Location
    Nigeria
    Posts
    503
    Helped
    152 / 152
    Points
    4,222
    Level
    15

    Re: 12vdc-220vac 100/200watts sinewave inverter

    Hi evelyn,i think you should start with the simple square wave first get the idea then try the modified sine wave then from their you should start thinking of pure sine wave,to achieve sine wave is not an easy task I did the same thing,i started with square wave then modified sine finaly pure sine wave to get pure sine wave you have to program a pic or micro's you have to use the pwm technics to get pure sine,pure sine inverter's uses high frequency signal which is the carrier frequency triangular wave, then modulete with the control frequency which is your ref sine wave 50Hz any were the ref signal intersect with the carrier frequency the output toggles from low to high therefore you are to expect a signal with a variable duty cycle this signal,this signal is the pwm signal, then some bridge drivers are used to drive these signals to your transformer with the use of mosfet or igbt's finaly a low pass filter is used to filter the carrier frequency and allow only low frequency to pass that how pure sine wave inverter work's:-P
    Last edited by kabiru; 21st October 2010 at 01:05.



  20. #20
    Full Member level 2
    Points: 3,509, Level: 13
    amjadali56's Avatar
    Join Date
    Sep 2007
    Location
    Earth
    Posts
    135
    Helped
    32 / 32
    Points
    3,509
    Level
    13
    Blog Entries
    1

    Re: 12vdc-220vac 100/200watts sinewave inverter

    here is complete paper for sine wave inverter osilator Using Atmel 89S2051 (with code) by Didik Rostyono (rostyono@webmail.bppt.go.id)


    1 members found this post helpful.

+ Post New Thread
Please login
Page 1 of 3 123 LastLast