Alternator testing apparatus

  • US 4,459,548 A
  • Filed: 11/12/1981
  • Issued: 07/10/1984
  • Est. Priority Date: 11/12/1981
  • Status: Expired due to Term
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First Claim
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1. Alternator testing apparatus for evaluating the operation of an alternator that generates an output signal having an average component and a ripple component, comprising circuit means for generating at a first output thereof a first voltage representative of the amplitude of the ripple component and independent of the average component and for generating at a second output thereof a second voltage representative of the sum of the magnitude of the average component plus the amplitude of the ripple component, means for providing electrical signals representative of the ratio of the first voltage to the second voltage, and indicating means coupled to said providing means and being responsive to the electrical signals therefrom to provide information on the ratio.

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