SERVER SYSTEM

• US 20130227309A1
• Filed: 05/25/2012
• Published: 08/29/2013
• Est. Priority Date: 02/29/2012
• Status: Active Grant

• Current Assignee: Quanta Computer
• Original Assignee: Quanta Computer
• Inventors: JAU, Maw-Zan, Wang, Tzu-Hung
• Granted Patent: US 9,167,718 B2
• Time in Patent Office: Days
• US Class Current: 713/300
• CPC Class Codes: G06F 1/30 Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations for resetting only G06F1/24
• CPC Class Codes: G06F 11/2015 Redundant power supplies power supply failure G06F1/30
• CPC Class Codes: H05K 7/1492 having electrical distribution arrangements, e.g. power supply or data communications

Abstract

A server system is disclosed. The server system comprises a motherboard and a server power system. The server power system comprises a power transmission interface, a power supply, a battery backup unit (BBU) and a signal transmission interface. The power supply converts an AC power into a DC power and then outputs the DC power to the motherboard via the power transmission interface. The BBU provides parallel or redundant power to the motherboard via the power transmission interface. The BBU and the power supply have the same size. The signal transmission interface is electrically connected to the motherboard, the power supply and the BBU.

Claims

1. A server system, comprising:

a motherboard; and

a server power system, comprising;

a power transmission interface;

a power supply used for converting an AC power into a DC power and then outputting the DC power to the motherboard via the power transmission interface;

a battery backup unit (BBU) used for providing parallel or redundant power to the motherboard via the power transmission interface, wherein the BBU and the power supply have the same size; and

a signal transmission interface electrically connected to the motherboard, the power supply and the BBU.

2. The server system according to claim 1, further comprising a server rack, which comprises:

a first power supply slot used for accommodating the power supply; and

a second power supply slot used for accommodating the BBU, wherein the dimension of the second power supply slot is the same with that of the first power supply slot.

3. The server system according to claim 1, wherein when abnormality occurs to the power supply, the BBU is activated to provide a redundant power to the motherboard.

4. The server system according to claim 3, wherein the BBU comprises:

a battery module;

a battery charger used for providing a charging voltage according to the AC power to charge the battery module;

a DC converter;

a control unit used for controlling the DC converter to converts the charging voltage outputted from the battery module into a backup power; and

an isolation circuit, wherein when abnormality occurs to the power supply, the isolation circuit provides the backup power to the motherboard as a redundant power.

5. The server system according to claim 4, wherein the BBU further comprises:

a power failure detection circuit used for detecting whether the AC power is disconnected, and generating a power failure signal to inform the control unit to perform booting after the AC power is disconnected.

6. The server system according to claim 4, wherein the control unit performs booting according to an AC OK signal generated by the power supply.

7. The server system according to claim 4, wherein the control unit performs booting according to a control signal generated by the motherboard.

8. The server system according to claim 1, wherein after the BBU is booted and is operated in a power saving mode, the BBU determines whether to provide a parallel power to the motherboard according to the voltage of the power transmission interface.

9. The server system according to claim 8, wherein the BBU comprises:

a battery module;

a boost converter used for converting the DC power into a charging voltage to charge the battery module;

a DC converter;

a control unit used for controls the DC converter converts the charging voltage outputted from the battery module into a backup power; and

an isolation circuit, wherein when the DC power is smaller than the backup power, the isolation circuit provides the backup power to the motherboard as a parallel power.

10. The server system according to claim 1, wherein the power transmission interface is a power bus.

11. The server system according to claim 1, wherein the power transmission interface is a power transmission line.