Inverter

Discussion in 'Homework Help' started by Cerkit, May 12, 2010.

  1. Cerkit

    Thread Starter Active Member

    Jan 4, 2009
    275
    3
    Hi. I have attached a circuit diagram. My notes say that the circuit will draw a quasi-square current waveform from the mains. Can someone explain this?
     
  2. Cerkit

    Thread Starter Active Member

    Jan 4, 2009
    275
    3
    Attachment
     
  3. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    5,448
    782
    The 3-phase rectifier feeds a DC link to the inverter. Assuming the inverter draws a relatively constant DC current to supply the motor then yes, the mains line currents will be quasi-square into the rectifier.
     
    Last edited: May 13, 2010
Loading...