inverter circuit diagram 12v, 500w

Discussion in 'The Projects Forum' started by zachhaeus, Jun 21, 2008.

  1. zachhaeus

    Thread Starter New Member

    Jun 21, 2008
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    sir, pleases, send to me the simple diagram of inverter. thanks:(
     
  2. zachhaeus

    Thread Starter New Member

    Jun 21, 2008
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    0
    sir, pleases, send to me the simple diagram of inverter. sir i wiil be expecting the reply from you sir. thanks, god bless you.
    thanks:(
     
  3. blocco a spirale

    AAC Fanatic!

    Jun 18, 2008
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    Unbelievable !!!:rolleyes:
     
  4. SgtWookie

    Expert

    Jul 17, 2007
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    We get a couple of requests just about like this every week. :rolleyes:
     
  5. CharlliCharlli

    New Member

    Jun 23, 2008
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    I need a circuit diagram of 1000va inverter
     
  6. thingmaker3

    Retired Moderator

    May 16, 2005
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    Let's face it. There are just some things in life a person can't do without. Air for instance. Good entertainment is another.

    Near the top of the list is a circuit diagram for a mid-range inverter!:p
     
  7. Wendy

    Moderator

    Mar 24, 2008
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    Standard set of questions to be answered before anyone can seriously help, is this going to be used for audio or video, or power tools?

    Frequency, we have no clue where you live, and what you're standards are. While I'm thinking of it voltage would also help, same reason.

    I keep saying, these are prime canidates for a cookbook, someone asks, you point, along with the standard disclaimers and notices of personal injury being possible.
     
  8. blocco a spirale

    AAC Fanatic!

    Jun 18, 2008
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    But is it really worth the hassle of designing and building an inverter these days? I can buy a 1kW modified sine wave inverter for about £40 including delivery from Hong Kong. I certainly couldn't build one for that.
     
  9. JoeJester

    AAC Fanatic!

    Apr 26, 2005
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    and

    has a better chance of being fulfilled than
     
  10. thingmaker3

    Retired Moderator

    May 16, 2005
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    I want half the people on the internet to send me $1. No, scratch that - the dollar sucks these days... I want half the people on the internet to send me a Euro.

    I just Googled "500 watt inverter" and found a $20.00 modified sine wave unit for 12V.

    Granted, such items might be prohibitively expensive to ship to certain parts of the planet.
     
  11. yourfriendahsan

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    Jul 5, 2008
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  12. Audioguru

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    Dec 20, 2007
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    No it doesn't. Look at www.aaroncake.net and see hundreds of complaints:
    1) Its capacitors have backwards polarity so they blow up.
    2) Its transistors have a max allowed reverse base voltage of 7V but the capacitors charge (backwards) to 23V then drive the base of each transistor to avalancehe breakdown which causes a very high current in the capacitors and blows them up even if their polarity is corrected.
    3) The transistors have hardly any base current for an inverter.
    The circuit is way too simple for a square-wave inverter. It is the laugh of the internet.
     
  13. yourfriendahsan

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    Jul 5, 2008
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    we can change the transistors and capacitors and replace them with higher values isn't it?
     
  14. blocco a spirale

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    Whatever you do, this will never be a 500W inverter.
     
  15. Wendy

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    Mar 24, 2008
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    To me the transformer is the thing, nothing else. The rest of the components can be paralleled if need be, including the wire. I suppose you could parallel the transformer too. To answer the OP question, I'll link some other plans here and here.

    You should read how the author of this site feels about 1000W inverters.
     
  16. SgtWookie

    Expert

    Jul 17, 2007
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    Bill, the 2nd link you posted has an extra " http//" in the front, so it doesn't work.

    http://www3.telus.net/chemelec/Projects/Inverter/Mosfet-Inverter.htm

    My beef with these kinds of "simple inverters" is that there is no real regulation of the output voltage. I wouldn't use such a design with anything other than an incandescent bulb; as they're cheap enough to replace when they blow.
     
  17. Wendy

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    Mar 24, 2008
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    You caught it mid edit, it works now.
     
  18. SgtWookie

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    I'm sneaky like that ;)
     
  19. Wendy

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    Mar 24, 2008
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    When we get the cookbook active I might try building a few (or find a couple of recommended tried designs) and put them up. That way when someone asks we just point. It's what the public seems to want...
     
  20. howzat

    New Member

    Jul 4, 2008
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    So how many will get cooked? Or is that the secret ingredient.
     
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