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Systems and methods for power supply synchronization in radio frequency identification (RFID) readers

  • US 8,196,831 B2
  • Filed: 04/17/2009
  • Issued: 06/12/2012
  • Est. Priority Date: 04/17/2008
  • Status: Expired due to Fees
First Claim
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1. A system for power supply synchronization in a Radio Frequency Identification (RFID) reader, the system comprising:

  • one or more switched mode power supply devices, each of the one or more devices providing power to at least one component of an RFID reader; and

    a signal generator, in communication with each of the one or more switched mode power supply devices, transmitting a synchronization signal comprising a controlling frequency to each of the one or more switched mode power supply devices, wherein the controlling frequency is chosen to be substantially equal to an integer multiple of a channel spacing between adjacent RFID channels.

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