Patent ID: 8558408

Claim:
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.