Sine Wave PWM Generator IC?

Discussion in 'The Projects Forum' started by Steven C Lee, Feb 5, 2009.

  1. Steven C Lee

    Thread Starter New Member

    Feb 5, 2009
    3
    0
    Hi All,

    I am designing a "Inverter" for DC to AC Converter, Which input is 12V DC and Output is AC120V / 60 Hz (1 Phase).

    For Simplify the circuit, I am looking for an ASIC that can generate PWM signals to driver MOSFET dircetly and come out 60Hz Sine Wave AC.

    Is there any information about the ASIC that I am looking for?

    Thanks in advance for your sharing.
     
  2. Audioguru

    New Member

    Dec 20, 2007
    9,411
    896
    Not enough pure sine-wave inverters are made to have an ASIC made for them.

    Chinese pure sine-wave inverters use two TL494 PWM controller ICs. One is in a high frequency oscillator that drives Mosfets and a small ferrite stepup transformer. The other TL494 makes the PWM that drives high voltage Mosfets.
     
  3. Steven C Lee

    Thread Starter New Member

    Feb 5, 2009
    3
    0
    Hi All,

    I am great to find a IC for SPWM (Sine-Wave PWM) generator.
    It is HEF4752V.
    But this IC can generate 3 phases SPWM signals with 120 degree lag from each other.
    I only need 1 phase of SPWM, May I only use one group of the SPWM signals for my application.

    Is there any concern that I should take?

    Any feedback is appreciate.
     
  4. derar-z

    New Member

    Feb 13, 2009
    2
    0
    I am electrical engineering student, a fifth the age of graduation and the draft of your project using the same ic possible to tell a more


     
    Last edited by a moderator: Feb 13, 2009
  5. derar-z

    New Member

    Feb 13, 2009
    2
    0
    i can heelp you and you can heelp me and
    I have a full outline for this inverter using ic hef 4752v​
     
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