Energy storage components to power loads during transitions between power supplies

Patent metadata

Field	Value
Publication number	US-11043800-B2
Application number	US-201715720418-A
Country	US
Kind code	B2
Filing date	Sep 29, 2017
Priority date	Sep 29, 2017
Publication date	Jun 22, 2021
Grant date	Jun 22, 2021

Abstract

Examples relate to power supply system comprising a primary power supply to deliver a first power to a load and a secondary power supply that, in response to a failure in the primary power supply, is to deliver a second power to the load. The system further comprises a primary energy storage component coupled to the primary power supply that, in response to the failure in the primary power supply, is to deliver a third power to the load while the secondary power supply transitions from a lesser output power level to a greater output power level. The third power is at the same full-rated power level than the first power.

First claim

The invention claimed is:

1. A power supply system comprising:
a primary power supply to deliver a first power to a load;
a secondary power supply that, in response to a failure in the primary power supply, is to deliver a second power to the load; and
a primary energy storage component coupled to the primary power supply that, in response to the failure in the primary power supply, is to deliver a third power to the load while the secondary power supply transitions from a lesser output power level to a greater output power level and wherein the third power is at the same full-rated power level of the first power;
wherein the primary energy storage component is to deliver the third power to the load in response to detecting the first power below a power threshold.

2. The power supply system of claim 1 , wherein, in response to the primary power supply recovering from the failure, the primary energy storage component is to deliver the third power to the load while the primary power supply transitions from a lesser output power level to a greater output power level and the primary power supply is to deliver the first power to the load.

3. The power supply system of claim 1 , comprising:
a secondary energy storage component coupled to the secondary power supply; and
wherein, in response to the failure in the primary power supply, the primary energy storage component and the secondary energy storage component are to deliver the third power to the load while the secondary power supply transitions from the lesser output power level to the greater output power level.

4. The power supply system of claim 1 , comprising:
a secondary energy storage component coupled to the secondary power supply;
wherein, in response to a failure in the secondary power supply, the primary power supply is to deliver the first power to the load and the secondary energy storage component is to deliver a fourth power to the load while the primary power supply transitions from a lesser output power level to a greater output power level; and
wherein the fourth power is at the same full-rated power level of the second power.

5. The power supply system of claim 4 , wherein, in response to the failure in the secondary power supply, the primary energy storage component and the secondary energy storage component are to deliver the fourth power to the load while the primary power supply transitions from a lesser output power level to a greater output power level.

6. The power supply system of claim 1 , wherein the lesser output power level of the secondary power supply is an initialization output power level of the secondary power supply and the greater output power level of the secondary power supply is a full-rated output power level of the secondary power supply.

7. The power supply system of claim 2 , wherein the lesser output power level of the primary power supply is an initialization output power level of the primary power supply and the greater output power level of the primary power supply is a full-rated output power level of the primary power supply.

8. The power supply system of claim 4 , wherein the secondary energy storage component is to deliver the fourth power to the load in response to detecting the second power below the power threshold.

9. The power supply system of claim 1 , wherein the primary energy storage component and the secondary energy storage component are components selected from a group comprising capacitors, supercapacitors, batteries, hybrid-capacitor-battery components and combinations thereof, respectively.

10. The power supply system of claim 1 , wherein the load is selected from a group comprising a server assembly, an IT load, a networking infrastructure and a storage infrastructure.

11. A method comprising:
powering a load with a first power generated by a primary power supply;
in response to a failure of the primary power supply, powering the load with a third power generated by a primary energy storage component coupled to the primary power supply while a secondary power supply transitions from a lesser output power level to a greater output power level and wherein the third power is at the same full-rated power level of the first power; and
in response to the secondary power supply reaching the greater output power level, turning off the primary energy storage component; and
powering the load with the secondary power supply;
determining if the first power provided by the primary power supply is below a power threshold; and
powering the load with the third power when it is determined that the first power is below the power threshold.

12. The method of claim 11 , comprising:
in response to the primary power supply recovering from the failure, powering the load with the third power while the primary power supply transitions from a lesser output power level to a greater output power level; and
in response to the primary power supply reaching the greater output power level, powering the load with the primary power supply;
turning off the primary energy storage component; and
turning off the secondary power supply.

13. The method of claim 11 , comprising:
in response to the failure in the primary power supply, powering the load with the third power that is delivered by the primary energy storage component and the secondary energy storage component while the secondary power supply transitions from the lesser output power level to the greater output power level.

14. The method of claim 11 , comprising:
in response to a failure of the secondary power supply, powering the load with a fourth power generated by a secondary energy storage component coupled to the secondary power supply while the primary power supply transitions from a lesser output power level to a greater output power level and wherein the fourth power is at the same full-rated power level of the second power; and
in response to the primary power supply reaching the greater output power level, turning off the secondary energy storage component; and
powering the load with the primary power supply.

15. The method of claim 14 , comprising:
in response to the failure in the secondary power supply, powering the load with the fourth power that is delivered by the primary energy storage component and the secondary energy storage component while the primary power supply transitions from the lesser output power level to the greater output power level.

16. The method of claim 11 , comprising:
powering the load with the second power when the secondary power supply has reached the greater output power level; and
turning off the primary energy storage component.

17. The method of claim 13 , comprising:
determining if the second power provided by the secondary power supply is below the power threshold;
powering the load with the fourth power when it is determined that the second power is below the power threshold;
powering the load with the first power when the primary power supply has reached the greater output power level; and
turning off the secondary energy storage component.

18. A non-transitory machine-readable storage medium comprising instructions that when executed by a processor causes the processor to:
cause a primary power supply to deliver a first power to a load;
in response to a failure of the primary power supply, cause a primary energy storage component coupled to the primary power supply to deliver a third power to the load while a secondary power supply transitions from a lesser output power level to a greater output power level and wherein the third p

Assignees

• Hewlett Packard Entpr Dev Lp

Inventors

• Bello Rivera Mark Isagani
• Airey Stephen
• Humphrey Daniel
• Mohr David P

Classifications

• G06F1/263 Primary

  Arrangements for using multiple switchable power supplies, e.g. battery and AC (G06F1/30 takes precedence) · CPC title

• G06F1/30

  Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations (for resetting only G06F1/24) · CPC title

• H02H1/06

  Arrangements for supplying operative power {(power supply arrangements in general G05F, H02M)} · CPC title

• H02H3/06 Primary

  with automatic reconnection · CPC title

• H02H3/12

  responsive to underload or no-load {(for motors H02H7/0827)} · CPC title