CN112506329A - Server power supply system and method and server - Google Patents

Server power supply system and method and server Download PDF

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Publication number
CN112506329A
CN112506329A CN202011270040.XA CN202011270040A CN112506329A CN 112506329 A CN112506329 A CN 112506329A CN 202011270040 A CN202011270040 A CN 202011270040A CN 112506329 A CN112506329 A CN 112506329A
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China
Prior art keywords
power supply
supply module
power
output voltage
target output
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CN202011270040.XA
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Chinese (zh)
Inventor
吴福宽
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Suzhou Inspur Intelligent Technology Co Ltd
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Suzhou Inspur Intelligent Technology Co Ltd
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Priority to CN202011270040.XA priority Critical patent/CN112506329A/en
Publication of CN112506329A publication Critical patent/CN112506329A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/263—Arrangements for using multiple switchable power supplies, e.g. battery and AC
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/3296—Power saving characterised by the action undertaken by lowering the supply or operating voltage

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Power Sources (AREA)

Abstract

The invention discloses a server power supply system, a server power supply method and a server. The system comprises: the input end of the first power supply module is connected with a mains supply, the output end of the first power supply module is connected with a first power consumption device, and the first power consumption device is a device which needs to perform secondary voltage conversion on input voltage; the input end of the second power supply module is connected with the mains supply, and the output end of the second power supply module is connected with the second power consumption device; and the baseboard management controller is respectively connected with the first power supply module and the second power supply module through an I2C bus, and is configured to send a first target output voltage to the first power supply module and a second target output voltage to the second power supply module, and the first target output voltage is greater than the second target output voltage. The scheme of the invention adopts relatively high voltage to supply power for the first power consumption device needing secondary voltage conversion, thereby reducing the current of the first power consumption device and leading the conduction loss of the server board level.

Description

Server power supply system and method and server
Technical Field
The invention relates to the field of server power supply, in particular to a server power supply system, a server power supply method and a server.
Background
As the demand for computing performance of a server increases, the power of the server increases. Particularly, the power consumption of the CPU is from 165W three years ago to 350W at present and is more than 450W two years later, and correspondingly, the power consumption data of the server (taking two-way server as an example) is developed from 500W-100W to 1000W-2000W and even higher. However, the board size of the server motherboard is not changed basically, the current increase caused by the power consumption increase, and a large amount of conduction loss occurs on the board, so that how to reduce the power consumption of the server is designed to be an important index for measuring the performance of the server.
At present, the existing power supply architecture of the mainstream board-level server determines that the input voltage of the motherboard is only one group of P12V voltages, that is, the same 12V voltage is used for power consumption devices on the motherboard, for example, the existing mainstream class-level server power supply architecture shown in fig. 1, the PSU1 and PSU2 are redundant PSU1, the PSU2 is directly connected together to form P12V, and the P12V supplies power to each part through each EFUSE, that is, the CPU, the memory, the hard disk, the video card and the fan lamp are all used. This approach reduces current by increasing voltage, thereby reducing conduction loss P ═ I2R is not improved. That is, under the condition of not changing the PCB, the power consumption of the server is increased by 1 time, and the current is increased by 1 time and the conduction loss is increased by four times; the conduction loss becomes an important part of the power consumption loss of the server, and according to the PI simulation result, the conduction loss now accounts for about 5%, wherein the loss of P12V accounts for about 50%, which accounts for about 2.5% of the whole server, and takes about 50W as an example of a 2000W server. Therefore, the power supply not only wastes energy, but also brings great challenges to heat dissipation.
Disclosure of Invention
In view of the above, it is desirable to provide a server power supply system, a method and a server capable of reducing power consumption of the server.
According to a first aspect of the present invention, there is provided a server power supply system, the system comprising:
the input end of the first power supply module is connected with a mains supply, and the output end of the first power supply module is connected with a first power consumption device, wherein the first power consumption device is a device which needs to perform secondary voltage conversion on input voltage;
the input end of the second power supply module is connected with the mains supply, and the output end of the second power supply module is connected with the second power consumption device;
a baseboard management controller respectively connected with the first power supply module and the second power supply module through an I2C bus and configured to send a first target output voltage to the first power supply module and a second target output voltage to the second power supply module, wherein the first target output voltage is greater than the second target output voltage.
In one embodiment, the system further comprises a switching tube;
the switch tube is connected between the output end of the first power supply module and the output end of the second power supply module in parallel, and the control end of the switch tube is connected with the substrate manager;
the substrate manager is further configured to monitor fault information of the first power supply module and the second power supply module, and drive the switching tube to be switched on or switched off according to the fault information.
In one embodiment, the baseboard manager is configured to drive the switch tube to be turned off in response to monitoring that the first power supply module and the second power supply module are normal.
In one embodiment, the baseboard manager is configured to drive the switch tube to be turned on in response to the detection that the first power supply module fails and the second power supply module is normal, so that the second power supply module supplies power to the first power consumption device and the second power consumption device respectively through the second target output voltage.
In one embodiment, the baseboard manager is configured to, in response to the detection that the first power supply module is normal and the second power supply module fails, send a second target output voltage to the first power supply module, and drive the switching tube to be turned on, so that the first power supply module supplies power to the first power consumption device and the second power consumption device through the second target output voltage.
In one embodiment, the system further comprises an EFUSE module arranged between the output end of the first power supply module and the first electric consumption device and between the output end of the second power supply module and the second electric consumption device, and the EFUSE modules are connected with the baseboard manager through an I2C bus.
In one embodiment, the first electrical consumer device includes a CPU and a memory, and the second electrical consumer device includes a hard disk, a graphics card, and a fan.
In one embodiment, the first target output voltage value is 14V, and the second target output voltage value is 12V.
According to a second aspect of the present invention, there is also provided a server power supply method, including performing the following steps with the server power supply system described above:
the baseboard manager sends a first target output voltage to the first power supply module and a second target output voltage to the second power supply module through the I2C bus;
the first power supply module converts commercial power to a first target output voltage and then supplies power to the first power consumption device; and
and the second power supply module converts the commercial power into a second target output voltage and then supplies power to the second power consumption device.
According to a third aspect of the present invention, there is also provided a server comprising the above-described server power supply system.
The server power supply system is characterized in that different power supply modules are respectively adopted for supplying power according to different voltage requirements of the power consumption devices, namely the through hole substrate manager is provided with the first power supply module and the second power supply module, the first power supply module supplies power with first target output voltage for the first power consumption device needing secondary voltage conversion, the second power supply module supplies power with second target output voltage smaller than the first target output voltage for the second high-voltage device, and relatively high voltage is adopted for supplying power for the first power consumption device needing secondary voltage conversion, so that the current of the first power consumption device is reduced, and the server board-level conduction loss is reduced.
In addition, the invention also provides a server power supply method and a server, which can also achieve the technical effects, and are described in detail herein.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained by using the drawings without creative efforts.
Fig. 1 is a schematic diagram of a power supply architecture of a conventional mainstream board-level server;
fig. 2 is a schematic structural diagram of a server power supply system according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a server power supply method according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention are described in further detail with reference to the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.
In an embodiment, referring to fig. 2, the present invention provides a server power supply system, including:
the power supply system comprises a first power supply module PSU1, wherein the input end of the first power supply module is connected with a mains supply, and the output end of the first power supply module is connected with a first power consumption device, wherein the first power consumption device is a device which needs to perform secondary voltage conversion on input voltage; preferably, the first electrical consumption device includes a CPU and a memory, and the second electrical consumption device includes a hard disk, a graphics card, and a fan.
A second power supply module PSU2, an input end of which is connected to the mains supply and an output end of which is connected to the second consumer;
a baseboard management controller connected with the first and second power supply modules through an I2C bus, respectively, and configured to send a first target output voltage (P12VH) to the first power supply module and a second target output voltage (P12VL) to the second power supply module, wherein the first target output voltage is greater than the second target output voltage.
The server power supply system is characterized in that different power supply modules are respectively adopted for supplying power according to different voltage requirements of the power consumption devices, namely the through hole substrate manager is provided with the first power supply module and the second power supply module, the first power supply module supplies power with first target output voltage for the first power consumption device needing secondary voltage conversion, the second power supply module supplies power with second target output voltage smaller than the first target output voltage for the second high-voltage device, and relatively high voltage is adopted for supplying power for the first power consumption device needing secondary voltage conversion, so that the current of the first power consumption device is reduced, and the server board-level conduction loss is reduced.
In yet another embodiment, please continue to refer to fig. 2, the system further includes a switching transistor (MOS transistor);
the switch tube is connected between the output end of the first power supply module and the output end of the second power supply module in parallel, and the control end of the switch tube is connected with the substrate manager;
the substrate manager is further configured to monitor fault information of the first power supply module and the second power supply module, and drive the switching tube to be switched on or switched off according to the fault information.
Preferably, the baseboard manager is configured to drive the switch tube to be turned off in response to monitoring that the first power supply module and the second power supply module are normal.
Preferably, the baseboard manager is configured to drive the switch tube to be turned on in response to the first power supply module is detected to be faulty and the second power supply module is detected to be normal, so that the second power supply module supplies power to the first power consumption device and the second power consumption device respectively through the second target output voltage.
Preferably, the baseboard manager is configured to, in response to the monitoring that the first power supply module is normal and the second power supply module fails, send a second target output voltage to the first power supply module, and drive the switching tube to be turned on, so that the first power supply module supplies power to the first power consumption device and the second power consumption device respectively through the second target output voltage.
In another embodiment, please refer to fig. 2 again, further comprising EFUSE modules disposed between the output of the first power supply module and the first electrical consumer, and between the output of the second power supply module and the second electrical consumer, and the EFUSE modules are connected to the baseboard manager through an I2C bus.
In yet another embodiment, the first target output voltage value is 14V and the second target output voltage value is 12V; in order to facilitate understanding of the technical scheme of the invention, a certain server is assumed to comprise a CPU, a memory measure, a mechanical hard disk HDD, a graphics card (GPU) and a fan, and the power supply system of the server is specifically as follows: the PSU1 and the PSU2 (the invention takes redundant design of two sets of PSUs of the server 2 mainstream in the market at present as the standard) are switched, the PSU1 supplies P12VH, namely the PSU output voltage is controlled by a baseboard manager to be designed to be 14V, and the PSU2 supplies P12VL, the output voltage is designed to be 12V; thus PSU1 provides 14V power for the CPU and memory MEMRY, while PSU2 provides 12V power for the mechanical hard disk HDD, graphics card (GPU) and fan.
In addition, redundant design of the PSU1 and the PSU2 is realized by writing instructions to drive the MOS transistor by the baseboard manager; if the BMC receives the fault of the PSU1, the MOS between the PSU1 and the PSU2 is immediately turned on, and the PSU2 is achieved to provide 12V power supply for the CPU, the memory MEMRY, the mechanical hard disk HDD, the graphics card and the fan. If the BMC receives a PSU2 fault, the BMC immediately informs the PSU1 that the output voltage is changed to 12V design (currently, PSUs are all digital power supplies, and only the software in the PSUs needs to be updated, so that switching of multiple output voltages can be realized), and further redundant design of the PSU1 and the PSU2 is realized. When the failed PSU is replaced, the BMC drives the MOS off when a new PSU is inserted, again enabling individual PSU1 and PSU2 to be self powered.
The server power supply system has the following technical effects
(1) The reduction of the conduction loss of a server board level is realized, for example, a 2000W server is taken as an example, the power output by 14V is about 1200W, the transmission is carried out according to 12V, the transmission current is 100A, the quantifiable conduction impedance of 12V is 0.5 milliohm, and the conduction loss is 100 x 0.5/1000 x 50W; if 14V is used, the output current is 85.7A, the conduction loss is 85.7X 0.5/1000W-36.7W, the loss is reduced by 13.3W, and the cost of electricity is reduced by 13.3X 26.28-349.5 yuan.
(2) The reduction of power consumption reduces the radiating degree of difficulty, and the improvement of semiconductor conversion efficiency also brings obvious improvement to the reduction of temperature in the whole server case, further reduces the power consumption of the server.
(3) The whole scheme of the invention is realized by adding software of BMC and PSU, which does not increase BOM cost. The BOM cost of 1 group of MOS is increased, the cost is about 1 dollar, and the income is obviously larger than the expenditure. Meanwhile, the invention adopts a 14V output scheme, meets the reliability requirement of the existing architecture under the ecological condition and does not need to make additional design.
(4) If the current ecology is not considered, the boosting to 16V can be considered, and more obvious power reduction is brought, but the capacitance under the current architecture is generally 16V withstand voltage, the withstand voltage is changed to 25V withstand voltage, and the 16V withstand voltage IC is replaced by more than 20V, so that the universality is reduced.
In another embodiment, referring to fig. 3, the present invention further provides a server power supply method using the system described above, and the method specifically includes the following steps:
s100, the baseboard manager sends a first target output voltage to a first power supply module through an I2C bus, and sends a second target output voltage to a second power supply module;
s200, the first power supply module converts commercial power to a first target output voltage and then supplies power to the first power consumption device; and
and S300, the second power supply module converts the commercial power into a second target output voltage and then supplies power to the second electric consumption device.
In a further embodiment, the method further comprises the following steps on the basis of the previous embodiment:
and S400, in response to the fact that the baseboard manager monitors that the first power supply module and the second power supply module are both normal, the baseboard manager drives the switch tube to be cut off, so that the first power supply module supplies power to the first power consumption device according to the first target output voltage.
S600, in response to the fact that the baseboard manager monitors that the first power supply module is in fault and the second power supply module is normal, the baseboard manager drives the switch tube to be conducted, so that the second power supply module respectively supplies power to the first power consumption device and the second power consumption device through the second target output voltage.
S700, in response to the fact that the baseboard manager monitors that the first power supply module is normal and the second power supply module is in fault, the baseboard manager sends a second target output voltage to the first power supply module and drives the switch tube to be conducted so that the first power supply module respectively supplies power to the first power consumption device and the second power consumption device through the second target output voltage.
In yet another embodiment, the present invention further provides a server including the server power supply system described above.
The foregoing is an exemplary embodiment of the present disclosure, but it should be noted that various changes and modifications could be made herein without departing from the scope of the present disclosure as defined by the appended claims. Although elements of the disclosed embodiments of the invention may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, of embodiments of the invention is limited to these examples; within the idea of an embodiment of the invention, also technical features in the above embodiment or in different embodiments may be combined and there are many other variations of the different aspects of an embodiment of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of the embodiments of the present invention are intended to be included within the scope of the embodiments of the present invention.

Claims (10)

1. A server power supply system, the system comprising:
the input end of the first power supply module is connected with a mains supply, and the output end of the first power supply module is connected with a first power consumption device, wherein the first power consumption device is a device which needs to perform secondary voltage conversion on input voltage;
the input end of the second power supply module is connected with the mains supply, and the output end of the second power supply module is connected with the second power consumption device;
a baseboard management controller respectively connected with the first power supply module and the second power supply module through an I2C bus and configured to send a first target output voltage to the first power supply module and a second target output voltage to the second power supply module, wherein the first target output voltage is greater than the second target output voltage.
2. The system of claim 1, further comprising a switch tube;
the switch tube is connected between the output end of the first power supply module and the output end of the second power supply module in parallel, and the control end of the switch tube is connected with the substrate manager;
the substrate manager is further configured to monitor fault information of the first power supply module and the second power supply module, and drive the switching tube to be switched on or switched off according to the fault information.
3. The system of claim 2, wherein the baseboard manager is configured to drive the switch tube to turn off in response to monitoring that the first power module and the second power module are both normal.
4. The system of claim 2, wherein the baseboard manager is configured to drive the switching tubes to conduct in response to the monitoring that the first power supply module is faulty and the second power supply module is normal, so that the second power supply module supplies power to the first power consumption device and the second power consumption device respectively through the second target output voltage.
5. The system of claim 2, wherein the baseboard manager is configured to send a second target output voltage to the first power supply module and drive the switch tube to be turned on to enable the first power supply module to respectively supply power to the first power consumption device and the second power consumption device through the second target output voltage in response to the first power supply module being monitored to be normal and the second power supply module being faulty.
6. The system of claim 1, further comprising an EFUSE module disposed between the first power module output and the first electrical consumer and between the second power module output and the second electrical consumer, the EFUSE modules each connected to a baseboard manager via an I2C bus.
7. The power supply system of claim 1, wherein the first electrical consumer device comprises a CPU and a memory, and the second electrical consumer device comprises a hard disk, a graphics card, and a fan.
8. The system of any one of claims 1-7, wherein the first target output voltage value is 14V and the second target output voltage value is 12V.
9. A method for powering a server, the method comprising the steps of using the system of any one of claims 1 to 8 to:
the baseboard manager sends a first target output voltage to the first power supply module and a second target output voltage to the second power supply module through the I2C bus;
the first power supply module converts commercial power to a first target output voltage and then supplies power to the first power consumption device; and
and the second power supply module converts the commercial power into a second target output voltage and then supplies power to the second power consumption device.
10. A server, characterized in that the server comprises a system according to any of claims 1-8.
CN202011270040.XA 2020-11-13 2020-11-13 Server power supply system and method and server Withdrawn CN112506329A (en)

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Application Number Priority Date Filing Date Title
CN202011270040.XA CN112506329A (en) 2020-11-13 2020-11-13 Server power supply system and method and server

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Application Number Priority Date Filing Date Title
CN202011270040.XA CN112506329A (en) 2020-11-13 2020-11-13 Server power supply system and method and server

Publications (1)

Publication Number Publication Date
CN112506329A true CN112506329A (en) 2021-03-16

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CN202011270040.XA Withdrawn CN112506329A (en) 2020-11-13 2020-11-13 Server power supply system and method and server

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Application publication date: 20210316