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Capacitive isolated voltage domains

  • US 8,867,592 B2
  • Filed: 05/09/2012
  • Issued: 10/21/2014
  • Est. Priority Date: 05/09/2012
  • Status: Active Grant
First Claim
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1. A device comprising:

  • a receiver circuit having a first comparator circuit and a second comparator circuit and configured and arranged toreceive a modulated signal, the modulated signal including a binary data signal encoded according to a communication protocol,provide common mode suppression for current transients, anddemodulate the modulated signal to retrieve the binary data signal byusing the first comparator circuit to detect the absence of a first signal state of the modulated signal,using the second comparator circuit to detect the absence of a second signal state of the modulated signal, anddetermine the absence of a carrier signal in the modulated signal in response to the absence of both the first signal state and the second signal state.

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