LC filter Design

Discussion in 'The Projects Forum' started by srinu9009, Jul 14, 2008.

  1. srinu9009

    Thread Starter New Member

    Jul 14, 2008
    3
    0
    Hai ,i am working on 200VA pure sine wave inverters.Actually my inverter efficiency affeted by odd number of voltage and current harmonics.how can reduce odd number harmonics magnitude and how can i design proper L & C to reduce harmonics in the load side.
     
  2. Wendy

    Moderator

    Mar 24, 2008
    20,764
    2,535
    What is your PWM frequency? A schematic would also be helpful.
     
  3. srinu9009

    Thread Starter New Member

    Jul 14, 2008
    3
    0
    Hi

    My switching frequency is 10KHz and My true sine wave inverter blocks are
    12V ,60AH Lead Acid Battery - MOSFET full bridge - 8V/270V,200VA,50HZ transformer 65uH secondary leakage inductance(1.5uf /305V AC, X2 cap connected across load for pure sinewave)- load

    sinewave PWM by microcontroller

    If you have any design note please kindly send to me
     
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