pure sine wave inverter problem

Discussion in 'The Projects Forum' started by lovelyhakeem, Sep 18, 2013.

  1. lovelyhakeem

    Thread Starter New Member

    Dec 15, 2010
    23
    0
    Dear members, I have designed full bridge rectifier for pure sine wave inverter using microcontroller and IR2110. I give 12 V to ir2110 , in start i give 12 V DC to drain of mosfet , worked well with good sine wave , then i have increased voltage to 30 V and then to 60 V , everything fine ( good output sine wave ). Then i have tried to give 300 V DC to drain of mosfet. but mine circuit blown :( , i have tried this many times but mine circuit always blown for high voltage ... work well for 60-70 V DC when i have used power supply . any help plz plz .
    Mosfet : irf 3205
    Driver ic : ir2110
    capacitor : 33 UF and then also of higher values .
    Can anyone plz plz help me

    Circuit
    http://obrazki.elektroda.pl/4660519100_1379535325.png
     
  2. wayneh

    Expert

    Sep 9, 2010
    12,145
    3,055
    Did you read the datahseet? The drain-source breakdown voltage for that MOSFET is only guaranteed to be ≥55V. I think 300V is expecting a lot.
     
  3. shortbus

    AAC Fanatic!

    Sep 30, 2009
    4,015
    1,531
    I'd like to see the rest of the circuit. The part that gives a sine wave output from mosfet H-bridge.
     
  4. Experimentonomen

    Member

    Feb 16, 2011
    331
    46
    To operate at 300V, you need mosfets that are rated at 600V minimum.
     
    lovelyhakeem likes this.
  5. RRITESH KAKKAR

    Senior Member

    Jun 29, 2010
    2,831
    89
    Off topic:
    Its better to learn new stuff then wasting time on this no scope in market. i already wasted time on it...
     
  6. lovelyhakeem

    Thread Starter New Member

    Dec 15, 2010
    23
    0
    @rpitesh definately sir , i will go on new and advance stuff but step by step :)
    @all thanks alot , i will try it
     
  7. shortbus

    AAC Fanatic!

    Sep 30, 2009
    4,015
    1,531
    A "pure sine wave" inverter is a real hard thing to build, that's why you don't see many. I gave rritesh this file but he never even looked at it. Maybe it will help you. It is for a "pure sine wave" inverter and goes through the process of designing one, so you can scale it to any size you need. Hope it helps you.


    For some reason the file won't upload right now. So here's the link, and I'll try an upload later.
    http://www.google.com/url?sa=t&rct=...0Au0ipm_kcr6T4GzoW6tc1w&bvm=bv.48705608,d.aWc

    Edit... for some reason I can't get the site to accept the file. Will start a new thread to ask why.
     
    Last edited: Sep 19, 2013
    Bernard likes this.
  8. lovelyhakeem

    Thread Starter New Member

    Dec 15, 2010
    23
    0
    @shortbus , thanks alot bro , i will see it ... stay blessd
     
  9. lovelyhakeem

    Thread Starter New Member

    Dec 15, 2010
    23
    0
    can u plz tell me about any power mosfet of such voltage and also good current plz . @ Experimentonomen
     
  10. sheldons

    Active Member

    Oct 26, 2011
    616
    101
    heres the file shortbus was trying to upload.... you wont be able to upload the file because of the pdf file size restrictions......its only just over the max file size
    just tried a page as a test
     
    shortbus likes this.
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