A more efficient power supply unit and a method for supplying power using same are disclosed. The power supply unit comprises a relay for switching alternating current power supplied from a plurality of sources; a direct current power supply for converting the switched current power to direct curren
A more efficient power supply unit and a method for supplying power using same are disclosed. The power supply unit comprises a relay for switching alternating current power supplied from a plurality of sources; a direct current power supply for converting the switched current power to direct current power; and a controller for generating a switch signal to control the relay to switch the sources on the basis of the result for monitoring the alternating current power supplied from the sources.
대표청구항▼
1. A power supply device, comprising: a plurality of relays each configured to switch alternating current power supplied from a plurality of sources;a plurality of direct current power supplies each configured to receive the switched alternating current power supplied by at least two of the pluralit
1. A power supply device, comprising: a plurality of relays each configured to switch alternating current power supplied from a plurality of sources;a plurality of direct current power supplies each configured to receive the switched alternating current power supplied by at least two of the plurality of relays, andconvert the switched alternating current power to direct current power;an integrator configured to receive the direct current power from each of the plurality of direct current power supplies, integrate the direct current power from the plurality of direct current power supplies into an integrated direct current power, and transmit the integrated direct current power to a plurality of servers; anda controller configured to generate a switch signal to control the plurality of relays to switch the sources based on a result of monitoring the alternating current power supplied from the sources. 2. The power supply device of claim 1, further comprising: a monitoring unit configured to monitor the alternating current power received from the plurality of sources. 3. The power supply device of claim 1, wherein the controller is configured to switch a supply of the alternating current power from a first source to a second source when unstable alternating current power is received from the first source for a first desired period of time or more, and to switch the supply of the alternating current power from the second source to the first source when the unstable alternating current power is received from the second source for the first desired period of time or more. 4. The power supply device of claim 3, wherein the controller is configured to switch the supply of the alternating current power from an original source to the first source or the second source during an original state and then maintain a switched state for a second desired period of time, and to switch the supply of the alternating current power to the original state when normal alternating current power is received from the original source. 5. The power supply device of claim 1, further comprising: an instantaneous power supply configured to prevent an occurrence of a voltage drop phenomenon by supplying a direct current power to the plurality of servers when the supply of the alternating current power is switched, the instantaneous power supply being in parallel to the plurality of relays and the plurality of direct current power supplies. 6. The power supply device of claim 5, wherein the instantaneous power supply comprises at least one of a capacitor and a lithium (Li) polymer battery. 7. The power supply device of claim 5, wherein the instantaneous power supply is configured to block a disturbance effect against the direct current power being supplied, using at least one of a diode and a field effect transistor (FET) in the case of charging. 8. The power supply device of claim 1, wherein the direct current power supply is connected with a plurality of power supply units (PSUs) in parallel. 9. The power supply device of claim 8, further comprising: a remote power monitoring unit configured to monitor an operating state of a plurality of servers, and to activate or inactivate each of the plurality of PSUs based on the operating state of the server corresponding to the respective PSU. 10. The power supply device of claim 1, wherein the plurality of servers are included in at least one rack. 11. The power supply device of claim 10, further comprising: an interface board provided in each of the plurality of servers to supply the distributed direct current power to the server corresponding to the interface board. 12. The power supply device of claim 11, wherein the interface board comprises an inrush current prevention circuit configured to prevent an occurrence of a voltage drop phenomenon by inrush current occurring in the plurality of servers when applying initial power to the plurality of servers. 13. A power supply method of a power supply device, the method comprising: switching alternating current power supplied from a plurality of sources using a plurality of relays;receiving the switched alternating current power supplied by at least two of the plurality of relays;converting the switched alternating current power to direct current power;receiving the direct current power from each of the plurality of direct current power supplies;integrating the direct current power from the plurality of direct current power supplies into an integrated direct current power;transmitting the integrated direct current power to a plurality of servers; andgenerating a switch signal to control the plurality of relays to switch the sources based on a result of monitoring the alternating current power supplied from the sources. 14. The method of claim 13, wherein the switching comprises: switching, using at least one relay of the plurality of relays, a supply of the alternating current power from a first source to a second source when unstable alternating current power is received from the first source for a first desired period of time or more; andswitching, using the at least one relay, the supply of the alternating current power from the second source to the first source when the unstable alternating current power is received from the second source for the first desired period of time or more. 15. The method of claim 14, further comprising: switching the supply of the alternating current power from an original source to the first source or the second source during an original state;maintaining a switched state for a second desired period of time after the switching; andswitching the supply of the alternating current power to the original state when normal alternating current power is received from the original source. 16. The method of claim 13, further comprising: preventing an occurrence of a voltage drop phenomenon by supplying a direct current power to the plurality of servers when the supply of the alternating current power is switched using an instantaneous power supply, the instantaneous power supply being in parallel to the plurality of relays and the plurality of direct current power supplies,wherein the instantaneous power supply includes at least one of a capacitor and a lithium (Li) polymer battery. 17. The method of claim 16, further comprising: blocking a disturbance effect against the direct current power being supplied, using at least one of a diode and a field effect transistor (FET) when charging the instantaneous power supply. 18. The method of claim 13, further comprising: monitoring an operating state of each of the plurality of servers using a remote power monitoring unit; andactivating or inactivating each of a plurality of power supply units (PSUs) connected in parallel based on the operating state of the server corresponding to the respective PSU. 19. The method of claim 13, further comprising: distributing the direct current power to the plurality of servers, the plurality of servers included in at least one rack; andsupplying the distributed direct current power to the plurality of servers using an interface board, and preventing an occurrence of a voltage drop phenomenon by inrush current occurring in the plurality of servers when applying initial power to the plurality of servers.
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이 특허에 인용된 특허 (3)
Chapel, Steve; Pachoud, William, Automatic transfer switch module.
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