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Apparatus for detecting and measuring peak-to-peak values in electrical signals

  • US 3,979,670 A
  • Filed: 01/29/1975
  • Issued: 09/07/1976
  • Est. Priority Date: 08/17/1973
  • Status: Expired due to Term
First Claim
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1. Apparatus for detecting and measuring peak-to-peak values in an electrical input signal comprising a group of positive-going peaks and a group of negative-going peaks, the apparatus comprising:

  • a clamping circuit for referencing one of said group of peaks to a predetermined d.c. voltage level, comprising;

    an operational amplifier having an inverting input for receiving the input signal, a non-inverting input, and an output terminal; and

    a first network, connected to said inverting input, to reference one of the groups of peaks of the input signal to said predetermined d.c. voltage; and

    a peak detecting and measuring circuit connected to said clamping circuit for providing an electrical output signal indicative of the magnitude of the other unreferenced peaks with respect to said predetermined d.c. voltage level.

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