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Uninterruptible power supplies with converter operation conditioned upon static switch commutation and methods of operation thereof

  • US 20040164617A1
  • Filed: 02/25/2003
  • Published: 08/26/2004
  • Est. Priority Date: 02/25/2003
  • Status: Active Grant
First Claim
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1. A method of operating a UPS, the method comprising:

  • asserting a switch drive signal at a switch to couple an AC source at an AC input of the UPS to an AC output of the UPS through the switch;

    deasserting the switch drive signal; and

    then delaying provision of power from a converter circuit of the UPS coupled to the Output of the UPS until after the switch has current commutated to an off state.

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