CN104267796A - Design method of intelligent redundant architecture of server power supply - Google Patents

Abstract

The invention discloses a design method of an intelligent redundant architecture of a server power supply, wherein a switch for automatically judging Active + Standby is arranged on a PSU power supply according to the load condition, the PSU automatically enters a Standby mode when the PSU is in a light load state, and the PSU automatically wakes up the Standby module to enable the Standby module to work normally when the load is high to a certain degree. By adopting the technical scheme of the invention, the switch for automatically judging Active + Standby is arranged on the PSU power supply, and one module is automatically adjusted into a Standby mode or an awakening mode according to the size of the load, so that the utilization efficiency of the power supply is improved, the power consumption is reduced, and the practicability and the functionality of the equipment are improved.

Description

A Design Method for Intelligent Redundant Architecture of Server Power Supply

technical field

The invention relates to the technical field of server power supplies, in particular to a design method for an intelligent redundant architecture of server power supplies.

Background technique

With the continuous development of the Internet era, the status of the server has been significantly improved. In order to pursue efficient operation of the server, more and more people try to find a breakthrough in energy saving on the power supply, so the efficiency of the power supply is continuously improved, but only the single power supply The improvement of efficiency still cannot meet the needs of users for high-efficiency server power supplies, so we began to try to properly switch the redundancy function of redundant power supplies to improve the utilization efficiency of power supplies.

Redundant power supply is a kind of power supply used in servers. It is composed of two identical power supply modules. The chip controls the power supply for load balancing. When one power supply module fails, the other power supply module can immediately take over its work. After replacing the power supply, the two power supply modules work together again. Redundant power supplies are for high availability of server systems. In addition to servers, disk array systems are also widely used.

RPS power supply (Redundant Power System, redundant power supply system) is used as an external DC power supply for some switches. If the RPS and powered equipment use the same AC power supply system, when the internal power supply of the powered equipment is abnormal, the RPS can continue to provide power. The faulty equipment provides DC power supply to ensure the continuous normal operation of the equipment; if the RPS and the powered equipment adopt different AC power supply systems, it can also continue to provide DC power supply when the external AC power supply of the powered equipment fails to ensure the continuous normal operation of the equipment run.

However, since the two power supplies work at the same time, resources will be wasted and the load on the power supplies will be increased when the load is relatively low.

Contents of the invention

The technical problem to be solved by the present invention is: the design method of the server power supply intelligent redundant architecture proposed by the present invention is based on the design idea of common redundant power supply (common redundant power supply) defined by intel, and the innovation in this architecture is through the PSU The power supply (power supply unit power supply device) body provides a new idea of intelligent redundancy, and intelligently controls the "switch" of the power supply by adding the Von/Voff point of Active+Standby.

The technical scheme adopted in the present invention is:

A design method for intelligent redundant architecture of server power supply. On the PSU power supply, a switch for automatically judging Active+Standby (active+standby) is set according to the load condition. When the PSU power supply is in a light-load state, the PSU automatically puts a module into standby mode, when the load reaches a certain level, the PSU power supply will automatically wake up the standby module to make it work normally. In this way, when the load is low, only the active module can be used to work, and the other module enters the standby state, which can improve the operating efficiency of the power supply and reduce the power consumption of the power supply.

When the load current is at the critical point of the switch, if the current is unstable at this time, it is higher than the critical point for a while, and then lower than the critical point for a while, then the switch will start frequently, and the standby power module will frequently switch back and forth between the working and standby states Switching, this will inevitably cause the instability of the current, increase the burden on the power supply, and affect the life of the power supply.

In order to ensure that the power supply repeatedly jumps at the critical point, a transition zone is set near the critical point of the Active+Standby switch, that is, a power band of 3-5A (for a 12V PSU power supply) is added, and the switch is lower than the lower limit of the transition zone or higher than the upper limit of the transition zone, the switch is activated, so that the power supply can achieve relatively stable switching. the

The design method is realized by opening the setting function of the Von/Voff point on the functional address of the PSU power supply. When the current value of the PSU power supply output 12V is greater than the Von point, the module in the standby state will be awakened, and the power supply will work at a uniform current mode; when the 12V output current of the PSU power supply is less than the Voff point, the two modules in current sharing mode will automatically switch to active+standby mode.

Beneficial effects of the present invention:

By adopting the technical scheme of the present invention, by setting a switch on the PSU power supply to automatically determine Active+Standby, a module is automatically adjusted to standby mode or wake-up mode according to the size of the load, which improves the utilization efficiency of the power supply and reduces the power consumption. consumption, improving the practicality and functionality of the device.

Description of drawings

Figure 1 is a schematic diagram of the Von and Voff points of the PSU power supply and the transitional power band.

Detailed ways

Below according to accompanying drawing of description, in conjunction with specific embodiment, the present invention is further described:

Embodiment 1: A design method for intelligent redundant architecture of server power supply. On the PSU power supply, a switch for automatically judging Active+Standby (active+standby) is set according to the load condition. When the PSU power supply is in a light-load state, the PSU power supply automatically Put a module into standby mode, when the load reaches a certain level, the PSU will automatically wake up the standby module to make it work normally.

Example 2:

When the load current is at the critical point of the switch, if the current is unstable at this time, it is higher than the critical point for a while, and then lower than the critical point for a while, then the switch will start frequently, and the standby power module will frequently switch back and forth between the working and standby states Switching, this will inevitably cause the instability of the current, increase the burden on the power supply, and affect the life of the power supply.

On the basis of Embodiment 1, in order to ensure that the power supply repeatedly jumps at the critical point, this embodiment sets a transition zone near the critical point of the Active+Standby switch, that is, increases the power of 3-5A (for a 12V PSU power supply) Power band, when the switch is lower than the lower limit of the transition band or higher than the upper limit of the transition band, the switch is activated, so that the power supply can achieve relatively stable switching.

Example 3:

On the basis of Embodiment 2, this embodiment is shown in Figure 1. The Von/Voff point setting function is enabled on the PSU function address. When the current value of the PSU power output 12V is greater than the Von point, the module in the standby state will be disabled. Wake up, the power supply works in the current sharing mode; when the PSU power output 12V current is less than the Voff point, the two modules in the current sharing mode will automatically switch to the active+standby mode (the standby module can be set according to needs);

In order to avoid repeated switching of the power supply at critical points, the distance between Von and Voff points is generally 3-5A, and the specific parameters are determined by the user.

Claims (3)

1. A design method for intelligent redundant architecture of server power supply, characterized in that: on the PSU power supply, a switch for automatically judging Active+Standby is set according to the load situation, and when the PSU power supply is in a light-load state, a module is automatically entered In standby mode, when the load reaches a certain level, the standby module will be woken up automatically to make it work normally. 2 . The design method of a server power supply intelligent redundant architecture according to claim 1 , wherein a transition zone is set near the critical point of the Active+Standby switch. 3 . 3. The design method of a kind of server power supply intelligent redundant architecture according to claim 2 is characterized in that: the design method is realized by opening the setting function of the Von/Voff point on the functional address of the PSU power supply, when the PSU power supply When the current value of the output 12V is greater than the Von point, the module in the standby state will be woken up, and the power supply will work in the current sharing mode; when the output current of the PSU power supply 12V is less than the Voff point, the two modules in the current sharing mode will automatically switch Into active+standby mode.