RACK-LEVEL SCALABLE AND MODULAR POWER INFRASTRUCTURE

• US 20130194726A1
• Filed: 02/01/2012
• Published: 08/01/2013
• Est. Priority Date: 02/01/2012
• Status: Active Grant

• Current Assignee: Dell Products LP (Dell Technologies Inc.)
• Original Assignee: Dell Products LP (Dell Technologies Inc.)
• Inventors: Bailey, Edmond I., Vivio, Joseph A., Wang, Kunrong
• Granted Patent: US 9,301,420 B2
• Time in Patent Office: Days
• US Class Current: 361/637
• CPC Class Codes: G06F 1/189 Power distribution
• CPC Class Codes: G06F 1/26 Power supply means, e.g. regulation thereof for memories G11C
• CPC Class Codes: H05K 7/1489 characterized by the mounting of blades therein, e.g. brackets, rails, trays H05K7/1491 takes precedence
• CPC Class Codes: H05K 7/1492 having electrical distribution arrangements, e.g. power supply or data communications
• CPC Class Codes: Y10T 29/49117 Conductor or circuit manufacturing

Abstract

In accordance with the present disclosure, a scalable and modular rack-level power infrastructure is described. The power infrastructure may include a power distribution unit (PDU), which receives alternating current (AC) power from an external power source. The PDU may be coupled to a busbar and output DC power to the busbar. The busbar may be coupled to a server within a rack-server system and provide DC power to the server. Additionally, the infrastructure may include a battery back-up unit (BBU) element coupled to the busbar. The BBU element may charge from and discharge to the busbar.

Claims

1. A rack-level power infrastructure, comprising:

a power distribution unit (PDU), wherein the PDU receives alternating current (AC) power from an external power source;

a busbar coupled to the PDU, wherein the PDU outputs direct current (DC) power to the busbar;

at least one server coupled to and receiving DC power from the busbar; and

a battery back-up unit (BBU) element coupled to the busbar, wherein the BBU element charges from and discharges to the busbar.

2. The rack-level power infrastructure of claim 1, further comprising a DC/AC inverter coupled to the busbar.

3. The rack-level power infrastructure of claim 1, wherein the PDU includes a plurality of single-phase, commodity power supply units (PSU).

4. The rack-level power infrastructure of claim 3, wherein at least the PSUs and BBU element are deployed outside of usable server space within the rack.

5. The rack-level power infrastructure of claim 3, wherein the PDU balances the current drawn from the phases of the input AC power.

6. The rack-level power infrastructure of claim 1, wherein the BBU element is disposed within the PDU.

7. The rack-level power infrastructure of claim 1, wherein the BBU element is deployed in a rack-mountable chassis outside of the PDU.

8. The rack-level power infrastructure of claim 1, wherein the PDU receives the input AC power through a detachable interface box.

9. The rack-level power infrastructure of claim 8, wherein the PDU is operable to receive AC input power of at the least types of single-phase, three-phase Delta, three-phase Wye, interruptible, and noninterruptible.

10. A method for providing a rack-level power infrastructure, comprising:

providing a power distribution unit (PDU), wherein the PDU receives input alternating current (AC) power;

coupling the PDU to a busbar, wherein the PDU outputs DC power to the busbar;

coupling at least one server to the busbar, wherein the at least one server receives DC power from the busbar; and

coupling a battery back-up unit (BBU) element to the busbar, wherein the BBU element charges from and discharges to the busbar.

11. The method of claim 10, further comprising coupling a DC/AC inverter coupled to the busbar.

12. The method of claim 10, wherein the PDU includes a plurality of single-phase, commodity power supply units (PSU).

13. The method of claim 12, wherein at least the PSUs and BBU element are deployed outside of usable server space within the rack.

14. The method of claim 12, wherein the PDU balances the current drawn from the phases of the input AC power.

15. The method of claim 10, wherein the BBU element is disposed within the PDU.

16. The method of claim 10, wherein the BBU element is deployed in a rack-mountable chassis outside of the PDU.

17. The method of claim 10, wherein the PDU receives the input AC power through a detachable interface box.

18. The method of claim 10, wherein the PDU is operable to receive AC input power of at least the types of single-phase, three-phase Delta, three-phase Wye, interruptible, and noninterruptible.

19. An information handling system, comprising:

a processor;

a memory element coupled to the processor;

a direct current (DC)/DC power supply coupled to the processor, wherein the DC/DC power supply receives power from a rack-level power infrastructure, wherein the rack-level power infrastructure comprises;

a power distribution unit (PDU), wherein the PDU includes a plurality of single-phase, commodity power supply units (PSU) disposed in slots within the PDU;

an alternating current (AC) power interface box, wherein the AC power interface box is coupled to an external AC power source and provide AC power to the PDU;

a busbar coupled to the PDU, wherein the plurality of single-phase, commodity PSUs included in the PDU output DC power to the busbar;

a battery back-up unit (BBU) element coupled to the busbar, wherein the BBU element charges from and discharges to the busbar; and

a DC/AC inverter coupled to the busbar.

20. The information handling system of claim 19, wherein the AC power interface box is operable to receive AC power of at least the types of single-phase, three-phase Delta, three-phase Wye, interruptible, and noninterruptible.