Inverter control apparatus

  • US 20010036093A1
  • Filed: 05/24/2001
  • Published: 11/01/2001
  • Est. Priority Date: 11/29/1999
  • Status: Active Grant
First Claim
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1. An inverter control apparatus comprising:

  • a converting unit which converts a commercial AC voltage into a DC voltage;

    an inverting unit which converts the DC voltage into an output AC voltage of a predetermined frequency by a pulse-width modulation system based on an assigned pulse width, and supplies the output AC voltage to an AC load;

    an instantaneous DC voltage detecting unit which detects an instantaneous value of the DC voltage; and

    a correcting unit which corrects the pulse width so as to maintain the output AC voltage at a desired value following the variation in a result of a detection by the instantaneous DC voltage detecting unit.

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