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REGULATION CONTROL FOR VARIABLE FREQUENCY GENERATORS

  • US 20100013443A1
  • Filed: 07/15/2008
  • Published: 01/21/2010
  • Est. Priority Date: 07/15/2008
  • Status: Active Grant
First Claim
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1. A regulator control apparatus for use with a variable frequency generator having a field winding, comprising:

  • a voltage regulator supplying a low frequency drive pulse-width modulated voltage signal from a first voltage source;

    a duty cycle controller supplying a high frequency pulse-width modulated voltage signal from a second voltage source;

    an AND gate for receiving the low and high frequency pulse-width modulated voltage signals and for modulating the high frequency pulse-width modulated voltage signal with the low frequency pulse-width modulated voltage signal to produce a combined drive signal representing an average voltage signal for supply to the field winding.

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