Sharing redundant power supply modules among physical systems
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02J-001/10
H02J-003/00
H02J-003/14
H02M-001/10
출원번호
US-0021344
(2008-01-29)
등록번호
US-8093749
(2012-01-10)
발명자
/ 주소
Lew, Hogan
Singla, Ankur
Nakil, Harshad
출원인 / 주소
Juniper Networks, Inc.
대리인 / 주소
Harrity & Harrity, LLP
인용정보
피인용 횟수 :
2인용 특허 :
11
초록▼
A system may include a switchover element configurable to source or sink power from or to an electronic device electrically coupled to the switchover element and a controller in communication with the switchover element. The controller may be configured to determine if the electronic device is healt
A system may include a switchover element configurable to source or sink power from or to an electronic device electrically coupled to the switchover element and a controller in communication with the switchover element. The controller may be configured to determine if the electronic device is healthy. When the electronic device is healthy, the controller may configure the switchover element to deliver power from the electronic device to the system and configure the switchover element to provide the power to any unhealthy electronic device electrically coupled to the system.
대표청구항▼
1. A system comprising: a first device that provides power to a plurality of devices connected to the first device, the first device comprising: a switchover element to at least one of source power from or sink power to the plurality of devices; anda controller, connected to the switchover element,
1. A system comprising: a first device that provides power to a plurality of devices connected to the first device, the first device comprising: a switchover element to at least one of source power from or sink power to the plurality of devices; anda controller, connected to the switchover element, to: determine a power level of a second device, of the plurality of devices, the second device being external to the first device,determine, based on the power level of the second device, whether a power supply, included in the second device, is operational,when the power supply, included in the second device, is operational, configure the switchover element to receive power from the second device,determine a power level of a third device, of the plurality of devices, the third device being external to the first device and being different than the second device,determine, based on the determined power level of the third device, whether another power supply, included in the third device, is operational, andconfigure the switchover element to provide the power, received from the second device, to the third device when the other power supply, included in the third device, is not operational and when the power supply, included in the second device, is operational. 2. The system of claim 1, further comprising: a first parallel power supply that provides additional power to the second device when the power supply is not operational. 3. The system of claim 2, further comprising: a second parallel power supply; anda bus that interconnects the first and the second parallel power supply, the bus preventing power from being delivered to the second parallel power supply from the first parallel power supply when the second parallel power supply fails. 4. The system of claim 1, further comprising N parallel power supplies, the system being connected to electronic devices that include a total of M power supplies, to provide (N+M):N redundancy to the electronic devices. 5. The system of claim 1, where the controller is further to: receive, via a communication line connected to the second device and from the second device, information identifying a health status of the second device, anddetermine, based on the received information identifying the health status, whether the power supply, included in the second device, is operational. 6. The system of claim 1, where the electronic device includes: zero, one, or more than one internal power supplies to provide additional power to the second device when the power supply is not operational. 7. The system of claim 1, where the controller is further to: determine whether a bus, that connects the second device to the first device, is not operational, andcause the second device to be disconnected from the first device when the bus is not operational. 8. The system of claim 1, where the controller is further to: provide power to the plurality of devices in a particular priority order when power to be provided to the plurality of devices is insufficient,where, when providing the power to the plurality of devices in the particular priority order, the controller is to: determine whether a particular priority associated with a particular device, of the plurality of devices, is higher than a lowest priority of a priority associated with each of other devices of the plurality of devices, andprovide power to the particular device when the particular priority is higher than the lowest priority. 9. The system of claim 1, where the switchover element includes a device to prevent current from flowing into the second device when the controller configures the switchover element to provide power, received from the second device, to the third device, and where the first device enables current to flow to the second device when the power supply, included in the second device, is not operational. 10. A method comprising: monitoring, by a power supply module, power levels of two or more electronic devices that are connected to the power supply module, the power supply module providing power to the two or more electronic devices, the two or more electronic devices being external to the power supply module;determining, based on a result of monitoring the power levels, whether power supplies included, respectively, in the two or more electronic devices, are operational;configuring, by the power supply module, a switchover element to enable a first electronic device, of the two or more electronic devices, to provide power, from the first electronic device, to the power supply module when the power supply, included in the first electronic device, is operational; andproviding, by the power supply module, power from the power supply module to a second electronic device, of the two or more electronic devices, when the power supply, included in the second electronic device, is not operational, the power, provided to the second electronic device, including the power provided by the first electronic device, the second electronic device being different than the first electronic device. 11. The method of claim 10, where monitoring health statuses includes: sensing a power level of the two or more electronic devices. 12. The method of claim 10, where configuring the switchover element includes: sink-disabling the first electronic device when the power supply, included in the first electronic device, is operational; andenabling the first electronic device to provide power, from the first electronic device, to the power supply module when the first electronic device is sink-disabled. 13. The method of claim 10, further comprising: determining that the power supply, included in the second electronic device, is not operational;sink-enabling the second electronic device when the power supply, included in the second electronic device, is not operational; andproviding the power, provided by the first electronic device, to the second electronic device when the second electronic device is sink-enabled. 14. The method of claim 10, further comprising: determining if an internal power supply of the one of the electronic devices is shorted; anddisconnecting the one of the electronic devices from the power supply module. 15. The method of claim 10, where providing power from the power supply module includes: comparing a power priority of the second electronic device with power priorities of other electronic devices that are receiving power from the power supply module; andproviding the power from the power supply module to the second electronic device when the power priority of the second electronic device is higher than a lowest power priority of the other electronic devices. 16. The method of claim 15, where providing power from the power supply module further includes: preventing a particular electronic device, of the other electronic devices, with the lowest power priority from receiving power from the power supply module. 17. The method of claim 16, further comprising: obtaining the power priorities of the other electronic devices. 18. The method of claim 10, further comprising: determining that the second electronic device is unhealthy when the second electronic device does not include a power supply. 19. The method of claim 10, where monitoring the power levels includes: receiving, from the first electronic device, information identifying a power level of the first electronic device via a communication link that connects the power supply module to the first electronic device; anddetermining, based on the received information identifying the power level, that the power supply, included in the first electronic device, is operational. 20. A system comprising: a power supply module, that provides power to a plurality of devices, to: determine whether a first power supply, included in a first device of the plurality of devices that is connected to the power supply module, is operational, the first device being external to the power supply module;source-enable the first device when the first power supply, included in the first device, is operational;receive power from the first device, in response to source-enabling the first device;detect when a second power supply, included in a second device of the plurality of devices that is connected to the power supply module, is not operational, the second device being external to the power supply module, the second device being different than the first device; andsend the power, received from the first device, to the second device, when the second power supply, included in the second device, is not operational. 21. The system of claim 20, where the power supply module is further to: determine that the first power supply, included in the first device, is not operational based on a power level of the first device,determine that the second power supply, included in the second device, is operational based on a power level of the second device,receive power from the second device based on determining that the second power supply, included in the second device, is operational, anddeliver power to the first device based on determining that the first power supply, included in the first device, is not operational,where the power delivered to the first device includes the power received from the second device.
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이 특허에 인용된 특허 (11)
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