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Output Short Circuit and Load Detection

  • US 20090322426A1
  • Filed: 06/30/2008
  • Published: 12/31/2009
  • Est. Priority Date: 06/30/2008
  • Status: Active Grant
First Claim
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1. An apparatus for testing an amplifier, the apparatus comprising:

  • an amplifier comprising a driver and a filter, the filter being connected between an output of the driver and an output of the amplifier, the filter being operable to produce a demodulated output signal from a higher frequency modulated signal at the driver output;

    a voltage level detector connected to the driver output; and

    a control circuit operable to detect at least one fault based on a voltage level measured at the driver output by the voltage level detector.

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