CN100483893C - Redundant Power Supply System - Google Patents

Abstract

A redundant power supply system divides the output power provided by the power supply system into different power supply modules according to different power levels to be respectively integrated and output, and a single power supply module is composed of redundant N +1 power supplies and independently provided with a power balancing unit to balance the output power, so that a user can increase the power supply module of independent voltage according to the requirements of an electronic device, the purpose of reducing the loss of the power supply conversion power can be achieved, and the power supplies can be conveniently designed into different specifications according to the difference of the electronic device.

Description

Redundant Power Supply System

technical field

The present invention relates to a redundant power supply system, especially one that can allow some power supply modules to be damaged or interrupted, but can still output power from the remaining operating power supply modules to maintain the operation of back-end electronic devices Redundant power supply system.

Background technique

The redundant power supply system applied to industrial computers adopts the N+M combination mode to achieve the normal operation of industrial computers without interrupting the power supply. Generally speaking, "N" refers to the total power required by the industrial computer The number of power supplies that should be combined for the load value, "M" refers to the number of power supplies that can be damaged. Usually, the design is mostly N+1 architecture, and when one of the power supplies is damaged, the system will issue a warning The signal prompts the operator to repair or replace.

Existing power supply designs mostly use a combination of single input power and multiple sets of output power with different voltages. The voltage of the output power is usually 12V, 5V, 3.3V, and each power supply needs to distribute the same power, so it is universal The specifications and sizes of power supplies are mostly consistent, and can be roughly divided into 1U to 4U models; however, with the improvement of multimedia and Internet technology, the power consumption of electronic devices has increased significantly, but the power supply transformation technology has not followed Change, but only choose transformer elements with better material characteristics according to the power to increase the output power, such as 600W ~ 750W, but in fact, the power supply is limited to standard specifications, and the power that can be increased is limited. It can be installed in the chassis. Given the limited number of power supplies, it is still unable to cope with the rapidly increasing power demand of electronic devices. In addition, the power requirements of existing electronic devices often only depend on specific voltages, and 12V is the main voltage. However, power supplies increase power It is an average boost, not an independent power upgrade for only part of the voltage, so the boosted power is still not enough to really meet the needs of electronic devices.

Contents of the invention

In view of the above defects in the prior art, the main purpose of the present invention is to provide a redundant power supply system.

The redundant power supply system according to the present invention is characterized in that it includes: a power output integration unit; at least one first power supply module, at least N+1 power supplies connected to the power output integration unit and a power supply A power balance unit connected to N+1 power supplies, the power balance unit makes the N+1 power supplies of the first power supply module form a backup module in load power balance mode, and defines the first power supply module The group output power is the first voltage; and at least one second power supply module, at least equipped with N+1 power supply units connected to the power output integration unit and a power balance unit electrically connected to the N+1 power supply units, The power balance unit uses the load power balance mode to make the N+1 power supplies of the second power supply module form a redundant module, and defines the second power supply module as a second voltage, and the second voltage is not equal to the first a voltage.

In this way, the user can add a power supply module with an independent voltage according to the needs of the electronic device, and can achieve the purpose of reducing the loss of the power supply conversion power, and can facilitate the design of the power supply with different specifications and sizes according to different electronic devices.

Description of drawings

Fig. 1 is a circuit block diagram of the first embodiment of the present invention;

FIG. 2 is a schematic block diagram of a circuit according to a second embodiment of the present invention; and

FIG. 3 is a schematic circuit block diagram of a third embodiment of the present invention.

Detailed ways

Relevant detailed description and technical contents of the present invention are as follows now in conjunction with the accompanying drawings:

Please refer to Fig. 1, as shown in the figure: the present invention is a backup power supply system, which mainly includes a power output integration unit 40, which is the output power of the backup power supply system Commonly integrated output to the back-end electronic device 50, the power output integration unit 40 can be a single circuit board or composed of multiple circuit boards according to the circuit layout required for the total output power, and the redundant power supply system The output power is composed of multiple sets of power supply modules 10, 20, 30, and each power supply module 10, 20, 30 has at least N+1 power supply units 11, 12, 21, 22, 31, 32 and a power balance unit 13, 23, 33 electrically connected to N+1 power supply units 11, 12, 21, 22, 31, 32, and the power balance unit 13, 23, 33 uses a load The power balance mode makes N+1 power supplies 11, 12, 21, 22, 31, 32 of a single power supply module 10, 20, 30 form a backup module, and the present invention must have at least two power supply modules Groups 10, 20, 30, and in order to be more in line with the universal voltage, three groups of power supply modules 10, 20, 30 are used as an example for illustration in the embodiment, and the present invention defines a single power supply module 10, 20, 30 output The electric power is a first voltage, a second voltage and a third voltage.

In the present invention, the first voltage, the second voltage and the third voltage are different voltages, and in terms of general specifications, the first voltage, the second voltage and the third voltage can be defined as 12V, 5V and 3.3V respectively , wherein, since the voltage difference between 5V and 3.3V is small, the present invention can also integrate 5V and 3.3V into a single power supply module 10, 20, 30, because each power supply 11, 12 of the present invention , 21, 22, 31, 32 only output the same or similar voltages, so the conversion power loss generated by different windings can be reduced when converting voltages. In addition, when the electronic device 50 is in operation, because each power supply 11, 12, 21, 22, 31, and 32 only output the same or similar voltages, so there will be no voltage fluctuation caused by voltage differences. In addition, according to the different voltages of the power used by the electronic device 50, the power supply 11, 12 can be , 21, 22, 31, 32 are designed with different specifications and sizes and are no longer restricted, especially for 5V and 3.3V power that are rarely used, they can be reduced and integrated into small power supplies 11, 12, 21, 22, 31, 32, so as to make full use of the installation space, and reserve space to improve the expandability of the power supply 11, 12, 21, 22, 31, 32.

In addition, according to the present invention, in addition to the AC power 60 or DC power 70 from the same source, the input power of the backup power supply system can also maintain a continuous power supply state through different sources of the input power, such as the input in FIG. 1 The electric power can be AC power 60 supplied by different mains power supply, and Fig. 2 shows that some power supplies 11, 21, 31 provide AC power 60 for mains power, and the other part is DC power 70 provided by uninterruptible power system, or it can also be as shown in Fig. 3 As shown, the power supplies 11, 12, 21, 22, 31, and 32 designed to receive input of AC 60 and DC 70 at the same time further allow the present invention to fully ensure that any state Both maintain a stable power output.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. In the above-described embodiments, various modifications and changes are possible to the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. spare power supply system is characterized in that comprising:

One electric power output integral unit;

At least one first power supply supply module, described first power supply supply module possesses at least has the N+1 platform power supply unit and that connects described electric power output integral unit to be electrically connected the power-balance unit of N+1 platform power supply unit, described power-balance unit makes the N+1 platform power supply unit of described first power supply supply module form redundant formula module with the bearing power balanced mode, and to define first power supply supply module output power be first voltage; And

At least one second source supply module, described second source supply module possesses at least has the N+1 platform power supply unit and that connects described electric power output integral unit to be electrically connected the power-balance unit of N+1 platform power supply unit, described power-balance unit makes the N+1 platform power supply unit of described second source supply module form redundant formula module with the bearing power balanced mode, and defining described second source supply module is second voltage, and described second voltage is not equal to described first voltage.

2. spare power supply system according to claim 1 is characterized in that: described first voltage is DC12V, and described second voltage is DC5V.

3. spare power supply system according to claim 1, it is characterized in that: comprise that also one possesses the 3rd power supply supply module that the N+1 platform power supply unit and that the described electric power output of connection integral unit is arranged is electrically connected the power-balance unit of N+1 platform power supply unit, and to define described the 3rd power supply supply module output power be tertiary voltage, and described tertiary voltage is not equal to described first voltage, also is not equal to described second voltage.

4. spare power supply system according to claim 3 is characterized in that: described first voltage be DC12V, second voltage be DC5V, and tertiary voltage be DC3.3V.

5. spare power supply system according to claim 3 is characterized in that: the described N+1 platform power supply unit of described the 3rd power supply supply module connects the input electric power in identical source.

6. spare power supply system according to claim 3 is characterized in that: the described N+1 platform power supply unit of described the 3rd power supply supply module connects the input electric power in source inequality.

7. spare power supply system according to claim 1 is characterized in that: the described N+1 platform power supply unit of described first power supply supply module connects the input electric power in identical source.

8. spare power supply system according to claim 1 is characterized in that: the described N+1 platform power supply unit of described first power supply supply module connects the input electric power in source inequality.

9. spare power supply system according to claim 1 is characterized in that: the described N+1 platform power supply unit of described second source supply module connects the input electric power in identical source.

10. spare power supply system according to claim 1 is characterized in that: the described N+1 platform power supply unit of described second source supply module connects the input electric power in source inequality.

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