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Starting circuit for power-converting apparatus

  • US 20050088860A1
  • Filed: 08/30/2004
  • Published: 04/28/2005
  • Est. Priority Date: 08/29/2003
  • Status: Active Grant
First Claim
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1. A power-converting apparatus, capable of holding an output AC voltage at a constant voltage level when a variation in voltage input via an AC power-supply source remains within a predetermined range, the power-converting apparatus comprising:

  • a separating means for electrically separating an AC power-supply source from the input terminals of said power-converting apparatus;

    an AC/AC converting circuit that initially rectifies AC current input via said AC power-supply source and then causes a capacitor to smooth said rectified current so as to be converted into DC current, and then further converts said DC current into AC current;

    a battery; and

    a DC/DC converting circuit that enables said capacitor to be charged with a DC voltage delivered from said battery and further enables said battery to be charged with a DC voltage delivered from said capacitor bilaterally or unilaterally.

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