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Power inverter apparatus for coping with an abrupt change in phase of input voltage

  • US 5,416,686 A
  • Filed: 03/29/1994
  • Issued: 05/16/1995
  • Est. Priority Date: 04/02/1993
  • Status: Expired due to Term
First Claim
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1. A power inverting apparatus, comprising:

  • a converter means for changing a first ac voltage into dc voltage;

    an inverter means for changing dc voltage provided by said converter means into a second ac voltage; and

    an input voltage control means for receiving a third ac voltage from an ac voltage source and for generating the first ac voltage, the first ac voltage being clamped at zero volts when the polarity of the third ac voltage supplied by said ac voltage source is inconsistent with the polarity of the second ac voltage provided by said inverter means.

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