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System and method for providing redundant power to a device

  • US 8,558,408 B2
  • Filed: 09/29/2010
  • Issued: 10/15/2013
  • Est. Priority Date: 09/29/2010
  • Status: Active Grant
First Claim
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1. A system comprising a plurality of power supply units (PSU), wherein each PSU is connected to another PSU by redundant communication links and a linear variable differential transformer (LVDT) excitation load, wherein each of the plurality of PSU comprises:

  • a communication module configured to provide bidirectional communication of operating conditions of the PSU to the another PSU via the redundant communication links;

    a power module coupled for communication to the communication module, the power module configured to produce excitation power to the LVDT excitation load, the power module comprising;

    a power source;

    a sensing unit electrically coupled to the power source and configured to determine operating parameters of the power module;

    a control unit electrically coupled to the sensing unit; and

    a switching module electrically coupled to the control unit, wherein the switching module configured to selectively connect and disconnect the power source to the LVDT excitation load in response to a signal from the control unit.

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