System and method for providing redundant power to a device
First Claim
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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Accused Products
Abstract
A system for providing power to a device includes a first power supply unit having a first power module that provides A.C. power and is selectively connectable to input lines and a first communication module. The system also includes a second power supply unit having a second power module selectively connectable to the input lines and that provides A.C. power and a second communication module coupled to the first communication module. Only one of the first or second power supply units is coupled to the input lines at a given time.
257 Citations
16 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system comprising a plurality of power supply units (PSU), wherein each PSU is connected to another PSU by redundant communication links and configured to provide a single excitation voltage to a linear variable differential transformer (LVDT) excitation load, wherein each of the plurality of PSU comprises:
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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 configured to produce excitation power to the LVDT excitation load, the power module comprising; an A.C. power source configured to provide the single excitation voltage; 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 the communication module; and a switching module electrically coupled to the control unit, wherein the switching module is configured to selectively connect and disconnect the power source to the LVDT excitation load in response to a signal from the control unit. - View Dependent Claims (8, 9, 10, 11)
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12. A system comprising:
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a first power supply unit comprising a first communications module electrically coupled to a first power module, the first power module comprising; a first A.C. power source configured to provide a single excitation voltage to a linear variable differential transformer (LVDT) load; a first sensing unit electrically coupled to the first A.C. power source and configured to determine a first operating parameters of the first power module; a first control unit electrically coupled to the first sensing unit; and a first switching module electrically coupled to the first control unit, wherein the first switching module selectively connects and disconnect the first A.C. power source to a first input line; a second power supply unit comprising a second communications module electrically coupled to a second power module, the second power module comprising; a second A.C. power source configured to provide the single excitation voltage to the LVDT load; a second sensing unit electrically coupled to the second A.C. power source and configured to determine a second operating parameters of the second power module; a second control unit electrically coupled to the second sensing unit; and a second switching module electrically coupled to the second control unit, wherein the second switching module configured to selectively connect and disconnect the second A.C. power source to a second input line; redundant communication links coupled for communication between the first communications module and the second communications module; and wherein the LVDT load is electrically coupled to the first input line and the second input line to receive the single excitation voltage from the first power supply unit or the second power supply unit. - View Dependent Claims (13, 14, 15, 16)
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Specification