CN101980413A - A method for hybrid redundant power supply of AC and DC - Google Patents

Abstract

The invention provides an AC and DC hybrid redundant power supply method. A power supply module is provided with two paths of AC input, wherein one path of AC input is connected with a mains supply, and the other path of AC input is connected with a 48V rechargeable battery; the AC input is connected in series with an AC/DC conversion module and a power output interface ATX; and the 48V rechargeable battery is connected with a DC/DC conversion module and the power output interface ATX. The AC and DC hybrid redundant power supply method comprises the following steps that: under the condition of normal running of the mains supply, the AC/DC conversion module provides power output for the power output interface ATX, and also charges the 48V rechargeable battery by the DC/DC conversion module; and under the condition of abnormal running of the mains supply, the 48V rechargeable battery supplies power to the power output interface ATX.

Description

A method for hybrid redundant power supply of AC and DC

technical field

The invention relates to the field of server power supply system power supply, in particular to an AC and DC hybrid redundant power supply method.

Background technique

The rapid development of the Internet has resulted in explosive growth of information resources. People use the Internet as a media, and their demand for information is also increasing. Various large-scale data computer rooms have also emerged as the times require. The number of individual servers, storage cabinets that make up a data center is also increasing. With the continuous development of the Internet and the continuous improvement of information security technology, traditional government administrative work and business operations have all been networked and informatized. These businesses have particularly high requirements on data security. High requirements are put forward for the high reliability and performance of the hardware carrier of the data. The form of power supply to the hardware of the data center also presents a diversified development trend. Therefore, this paper proposes a design method for input with AC and DC hybrid redundant power supply.

Contents of the invention

The purpose of the present invention is to provide an AC and DC hybrid redundant power supply method.

The object of the present invention is achieved in the following manner. In the power supply module, one AC input is respectively set to be connected to the mains, and the other is connected to the 48V storage battery, wherein the AC input is connected in series with the AC/DC conversion module AC/DC and the power output interface ATX is connected. , the 48V battery is connected to the DC/DC conversion module and the power output interface ATX, and the power supply steps are as follows: Under normal circumstances, the DC conversion module AC/DC provides power output for the power output interface ATX and charges the 48V battery through the DC/DC conversion module , When the mains power is abnormal, the 48V battery supplies power to the power output interface ATX.

Compared with the prior art, the AC and DC hybrid redundant power supply method of the present invention has the beneficial effects of being reasonable in design, simple in structure, convenient to use, and enhancing the reliability of the whole power supply (if: the condition of large-scale power failure of AC mains power supply) In this case, DC can still provide power supply, and at the same time, the applicability of the power supply is not limited to the use of AC to supply power to the redundant power supply. Therefore, it has a good promotion and use value.

Description of drawings

Accompanying drawing 1 is the schematic diagram of the power supply structure of the traditional redundant power supply

Accompanying drawing 2 is the power structure schematic diagram of AC and DC mixed redundant power supply.

Detailed ways

The method of the present invention is described in detail below with reference to the accompanying drawings.

As shown in the power supply structure of the traditional redundant power supply in Figure 1, this power supply structure is to supply power to the power modules in the power supply with two sets of ACs respectively. cause the server system to go down.

Figure 2 is a power structure using AC and DC hybrid power supply. Among them, DC supplies power to one of the power supply modules, and the energy conversion form of the power supply module is a DC/DC conversion method. In this way, the overall efficiency of the power supply is improved to a certain extent; AC supplies power to the other power supply module, and the two power supplies Modules are combined to achieve 1+1 redundancy. This structure continuously enhances the reliability of the entire power supply (if: under the condition of a large-scale AC power outage, DC can still provide power), and at the same time enhances the applicability of the power supply (not limited to the use of AC to power redundant power supplies ).

In the traditional server redundant power supply, each power supply module adopts AC power supply mode, but the difference of the present invention is that the power supply mode of one of the power supply modules is changed to DC power supply, and the conversion mode of the power supply module is: DC/DC conversion method. For the power supply as a whole, the power supply end adopts two power supply modes of AC and DC, AC power supplies power to one of the power modules, and DC power supplies power to the other power module. AC power is generally AC mains power, and DC is generally provided by a battery pack or converted to -48VDC through a circuit. Once the AC mains is disconnected, the battery pack can still ensure that one of the power modules continues to work, thereby ensuring the power supply of the entire system.

Except for the technical features described in the instructions, all are known technologies by those skilled in the art.

Claims (1)

1. An AC and DC hybrid redundant power supply method is characterized in that one AC input is respectively set in the power supply module to be connected to the mains, and the other is connected to the 48V storage battery, wherein the AC input is connected in series with the AC/DC conversion module AC/DC and The power output interface is connected to ATX, and the 48V battery is connected to the DC/DC conversion module to connect to the power output interface ATX. The power supply steps are as follows: Under normal circumstances, the DC conversion module AC/DC provides power output to the power output interface ATX and also through DC/DC conversion. The module charges the 48V battery. When the mains power is abnormal, the 48V battery supplies power to the power output interface ATX.

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