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Control for a brushless generator operable in generating and starting modes

  • US 5,495,163 A
  • Filed: 05/12/1993
  • Issued: 02/27/1996
  • Est. Priority Date: 05/12/1993
  • Status: Expired due to Term
First Claim
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1. A detector for detecting rotor position of a brushless generator having a motive power shaft, a permanent magnet generator (PMG) coupled to the shaft, the PMG having a set of armature phase windings at which a set of PMG phase outputs are produced, and a main generator portion coupled to the shaft, the main generator portion having a set of armature phase windings capable of receiving AC power, comprising:

  • means coupled to the PMG armature phase windings for deriving a number of internal pulses per revolution of the motive power shaft from the PMG phase outputs;

    means coupled to the deriving means for measuring time periods between adjacent interval pulses; and

    means coupled to the measuring means for converting the measured time periods into an indication of the angular position of the motive power shaft.

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