+ Post New Thread
Page 1 of 3 123 LastLast
Results 1 to 20 of 45
  1. #1
    Newbie level 6
    Points: 4,324, Level: 15

    Join Date
    Mar 2006
    Posts
    12
    Helped
    6 / 6
    Points
    4,324
    Level
    15

    3000w inverter schematic

    Design based on Mosfets, Modified sinewave or what we call it
    technically OPWM: one pulse width modulation.

  2. #2
    Newbie level 6
    Points: 4,324, Level: 15

    Join Date
    Mar 2006
    Posts
    12
    Helped
    6 / 6
    Points
    4,324
    Level
    15

    3000w inverter

    some additional photos


    2 members found this post helpful.

    •   Alt15th March 2006, 12:37

      advertising

        
       

  3. #3
    Newbie level 1
    Points: 599, Level: 5

    Join Date
    Sep 2009
    Posts
    1
    Helped
    3 / 3
    Points
    599
    Level
    5

    3000w inverter full schematics and pcb

    hi sir!
    do you have a list of a part that im goin to use in this project
    im having a problem of some part because some part is newly in my eye like TR2
    plssss can i have a list, thanyou


    3 members found this post helpful.

  4. #4
    Newbie level 4
    Points: 621, Level: 5

    Join Date
    Sep 2009
    Location
    INDIA
    Posts
    5
    Helped
    4 / 4
    Points
    621
    Level
    5

    12vdc to 220vac converter

    is there any simplified circuit using rated mosfets for about 2000w because it is a bit confusing one


    2 members found this post helpful.

  5. #5
    Newbie level 1
    Points: 562, Level: 5

    Join Date
    Nov 2009
    Posts
    1
    Helped
    2 / 2
    Points
    562
    Level
    5

    Re: 12Vdc to 220Vac 3000W Inverter Full Schematics And Pcb

    Hi, the time passed since 2006, but it's still an actual thing.

    The biggest question about Tr1 - how it is made exactly?


    2 members found this post helpful.

  6. #6
    Advanced Member level 2
    Points: 10,741, Level: 24
    Mr.Cool's Avatar
    Join Date
    Jun 2001
    Posts
    630
    Helped
    84 / 84
    Points
    10,741
    Level
    24

    Re: 12Vdc to 220Vac 3000W Inverter Full Schematics And Pcb

    well, this one is better than most i have seen on the net. thanks for the share.

    still.. i think there is a lot of room for improvement and modernization.

    Mr.Cool


    2 members found this post helpful.

  7. #7
    Newbie level 2
    Points: 1,440, Level: 8

    Join Date
    Jan 2005
    Posts
    2
    Helped
    1 / 1
    Points
    1,440
    Level
    8

    Re: 12Vdc to 220Vac 3000W Inverter Full Schematics And Pcb

    Yeah what are the specs for the transformer???
    Plz


    1 members found this post helpful.

  8. #8
    Member level 4
    Points: 3,564, Level: 14

    Join Date
    Dec 2007
    Posts
    75
    Helped
    11 / 11
    Points
    3,564
    Level
    14

    Re: 12Vdc to 220Vac 3000W Inverter Full Schematics And Pcb

    HI

    THIS INVERTER IS SO GOOD TO STUDY .I LEARN TOO MANY THINGS LIKE

    CURRENT SENSING, OUT PUT LOAD SENSING EXT.

    I THINK 12V FOR 3000W IS NOT A GOOD IDEA IT SHOULD BE 24V OR MORE 48V

    THE 2N7000 FET NOT AVILABLE IN PAKISTAN BUT WE CAN USE JAPNEES FETS

    WITCH ARE EASY AVIL ABLE.



    2 members found this post helpful.

    •   Alt22nd March 2010, 14:30

      advertising

        
       

  9. #9
    Newbie level 1
    Points: 484, Level: 4

    Join Date
    Mar 2010
    Location
    pakistan
    Posts
    1
    Helped
    0 / 0
    Points
    484
    Level
    4

    12Vdc to 220Vac 3000W Inverter Full Schematics And Pcb

    Thanks for this .how i make transformer



    •   Alt27th March 2010, 08:41

      advertising

        
       

  10. #10
    Newbie level 4
    Points: 2,012, Level: 10

    Join Date
    May 2009
    Location
    Karachi, Pakistan
    Posts
    5
    Helped
    2 / 2
    Points
    2,012
    Level
    10

    Re: 12Vdc to 220Vac 3000W Inverter Full Schematics And Pcb

    Assalam o Alaikum Guys,

    This is an old circuit designed by legendary German engineer Mr. Wolf-Guenter Gfrorer in 1998. Now it is only avaiable at http://www.qsl.net/dg5sga/inverter.htm. With full description of the circuit, transformer computations, PCB and complete testing procedures.

    I built this circuit in 2001, with a 850VA output Transformer. It's a good robust design. Mine still works fine.

    PS:- All the parts are commonly, easily and cheaply available in Pakistan, specially Karachi. If somebody require some particular components in Karachi, please feel free to contact me for supply store addresses.

    Best Regards,

    Ghazali Zuberi

    Added after 20 minutes:

    for your convenience I am attaching a copy of the complete web page.

    here is the file in rar format, with web page in mht format.


    1 members found this post helpful.

  11. #11
    Member level 2
    Points: 745, Level: 5

    Join Date
    Jan 2010
    Posts
    43
    Helped
    5 / 5
    Points
    745
    Level
    5

    Re: 12Vdc to 220Vac 3000W Inverter Full Schematics And Pcb

    Thanks Gazali Zuberi for the info on this circuit
    I want to make a 500W inverter from this circuit and omit the no load and overload detectors to make it simple
    will it be OK?
    Thanks


    2 members found this post helpful.

  12. #12
    Newbie level 6
    Points: 1,455, Level: 8

    Join Date
    Jan 2010
    Location
    indian
    Posts
    14
    Helped
    5 / 5
    Points
    1,455
    Level
    8

    Re: 12Vdc to 220Vac 3000W Inverter Full Schematics And Pcb

    hii.. m working on an inverter using a 12V battery and push-pull config.

    m getting these(attached) 12V variable duty cycle SPWM pulses, so now can i use a step-up transformer to get my 230Vrms modified sine output. or these DC pulses can saturate the transformer


    2 members found this post helpful.

  13. #13
    Newbie level 6
    Points: 1,455, Level: 8

    Join Date
    Jan 2010
    Location
    indian
    Posts
    14
    Helped
    5 / 5
    Points
    1,455
    Level
    8

    12Vdc to 220Vac 3000W Inverter Full Schematics And Pcb

    can a high frequency transformer be used to step-up the pulsating dc ??


    2 members found this post helpful.

  14. #14
    Advanced Member level 5
    Points: 32,512, Level: 44
    Audioguru's Avatar
    Join Date
    Jan 2008
    Location
    Toronto area of Canada
    Posts
    3,693
    Helped
    728 / 728
    Points
    32,512
    Level
    44

    12Vdc to 220Vac 3000W Inverter Full Schematics And Pcb

    Usually a ferrite core transformer is used with the high frequency pulses.



  15. #15
    FvM
    FvM is offline
    Advanced Member level 5
    Points: 162,980, Level: 96
    Awards:
    Helpful gold

    Join Date
    Jan 2008
    Location
    Bochum, Germany
    Posts
    25,707
    Helped
    7958 / 7958
    Points
    162,980
    Level
    96

    Re: 12Vdc to 220Vac 3000W Inverter Full Schematics And Pcb

    can a high frequency transformer be used to step-up the pulsating dc ??
    When feeding "pulsating dc" to the transformer, it must have a core size similar to a 50 or 60 Hz transformer. It can't use a ferrite core.
    Inverters utilizing a mid frequency transformer feed a high voltage DC bus (e.g. 150 or 300 V) through a mid frequency DC/DC converter
    and operate a full bridge sine PWM at the high voltage level. In other words, they need two cascaded power stages.



  16. #16
    Advanced Member level 5
    Points: 32,512, Level: 44
    Audioguru's Avatar
    Join Date
    Jan 2008
    Location
    Toronto area of Canada
    Posts
    3,693
    Helped
    728 / 728
    Points
    32,512
    Level
    44

    Re: 12Vdc to 220Vac 3000W Inverter Full Schematics And Pcb

    Quote Originally Posted by FvM
    can a high frequency transformer be used to step-up the pulsating dc ??
    When feeding "pulsating dc" to the transformer, it must have a core size similar to a 50 or 60 Hz transformer. It can't use a ferrite core.
    Inverters utilizing a mid frequency transformer feed a high voltage DC bus (e.g. 150 or 300 V) through a mid frequency DC/DC converter and operate a full bridge sine PWM at the high voltage level. In other words, they need two cascaded power stages.
    The transformer has high frequency AC, not DC pulses. The high frequency allows a very small transformer that has a ferrite core instead of a huge low frequency transformer with an laminated iron core.



  17. #17
    Advanced Member level 5
    Points: 32,512, Level: 44
    Audioguru's Avatar
    Join Date
    Jan 2008
    Location
    Toronto area of Canada
    Posts
    3,693
    Helped
    728 / 728
    Points
    32,512
    Level
    44

    Re: 12Vdc to 220Vac 3000W Inverter Full Schematics And Pcb

    3000W from 12V is a current of 250A if the inverter has no losses. But of course an inverter has losses so the current from the 12V battery will be at least 300A!

    Any lead-acid battery will quickly boil away its electrolyte. The wires from the battery will be almost as thick as your arm.

    Why do you need 3000W? Why do you need an inverter anyway? Isn't your electricity reliable? Why not?


    1 members found this post helpful.

  18. #18
    Newbie level 2
    Points: 622, Level: 5

    Join Date
    Jun 2009
    Location
    pakistan
    Posts
    1
    Helped
    0 / 0
    Points
    622
    Level
    5

    Re: 12Vdc to 220Vac 3000W Inverter Full Schematics And Pcb

    Hi,
    every one. Friends i want complete PWM inverter circuit diagram with capability for protect
    over charge+deep discharge+overload+short circuit protection using 12V or 24V battery Max 3000 watt using PIC, Micro Controller program in C-language. Also please tell me what transformer using. Please i very need this type of circuit some kind person tell me about this circuit if some one have professional Inverter circuit blue print so please also send me. and also please tell me which is the best micro controller for Inverter or UPS who are designed and dedicated only for this kinds of circuits and have all feature build in whose are required for UPS or Inverter circuits.
    Thanks



  19. #19
    Advanced Member level 5
    Points: 32,512, Level: 44
    Audioguru's Avatar
    Join Date
    Jan 2008
    Location
    Toronto area of Canada
    Posts
    3,693
    Helped
    728 / 728
    Points
    32,512
    Level
    44

    Re: 12Vdc to 220Vac 3000W Inverter Full Schematics And Pcb

    I am in Canada where the electricity is planned properly so it is very reliable. I have seen inverters sold to people who go hunting or camping but I have never needed one and have never used one.

    What will you use for a battery? How will you charge the battery?
    A 3000W sine-wave inverter will draw about 3450W (450W of heat) from a 12V battery and the current will be a whopping 288A. A car battery will boil before two minutes. It will be dead before five minutes. Useless.


    1 members found this post helpful.

  20. #20
    Newbie level 2
    Points: 426, Level: 4

    Join Date
    Sep 2010
    Posts
    2
    Helped
    3 / 3
    Points
    426
    Level
    4

    Re: 12Vdc to 220Vac 3000W Inverter Full Schematics And Pcb

    may i get the schematic n pcb for 12vdc to 220vac inverter too.. thanks..


    3 members found this post helpful.

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

LinkBacks (?)

  1. 18th December 2011, 06:15