CN105159428A - Capacitor based design method for balancing AC power supply cost and CPU performance - Google Patents
Capacitor based design method for balancing AC power supply cost and CPU performance Download PDFInfo
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- CN105159428A CN105159428A CN201510533684.6A CN201510533684A CN105159428A CN 105159428 A CN105159428 A CN 105159428A CN 201510533684 A CN201510533684 A CN 201510533684A CN 105159428 A CN105159428 A CN 105159428A
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- electric capacity
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Abstract
The invention discloses a capacitor based design method for balancing an AC power supply cost and CPU performance, and belongs to the field of server power supply. The invention aims to solve the technical problem of how to select a power supply of smaller power to power a server system without affecting CPU turbo boost performance. According to the technical scheme, the method comprises the following steps: (1) determining maximum momentary power consumption Pmax of a system when a CPU performs a turbo boost action; and (2) according to an estimated value of system power consumption, selecting a PSU with power being P0, wherin P0 < Pmax.
Description
Technical field
The present invention relates to a kind of server for electrical domain, specifically a kind of method for designing utilizing electric capacity to take into account AC power supplies cost and cpu performance.
Background technology
With the fast development of cloud computing, the information-based industry-by-industry having spread to people's daily life gradually, people are also increasing to the demand of web database technology.Especially at internet industry, the platform that data center stores as mass data and serves, also increasing to the number of servers demand of data center machine room.Often a large-scale data center construction completes, and the quantity of server can tens of thousandsly be disposed.
The foundation stone that power supply normally works as server, the size of its power often depends on server system power consumption; And the power of power supply is higher, cost higher (power doubles, and cost is corresponding increase about a times also).Usually, when server works, not all time all works in an overload condition, and (as: the Turboboost function of CPU is opened.That is: CPU is in overclocking duty, and unit interval process data volume can become large).If power specification carrys out type selecting according to instantaneous power consumption during server system overload, the significantly rising of whole server cost can be caused.If select the power supply that power requirements is less, exceed power supply peak power output in instantaneous power, there is the risk of overpower protection.
How can under the prerequisite of farsighted frequency acceleration not affecting CPU, selecting lower-powered power supply to power to server system is the technical matters being badly in need of at present solving.
summary of the invention
Technical assignment of the present invention is for above weak point, under providing that a kind of structure is simple, production cost is low, can meeting the prerequisite accelerated at the farsighted frequency not affecting CPU, the electric capacity that utilizes selecting lower-powered power supply to power to server system takes into account the method for designing of AC power supplies cost and cpu performance.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method for designing utilizing electric capacity to take into account AC power supplies cost and cpu performance, and step is as follows:
(1) when determining that CPU does farsighted frequency accelerated motion, system maximum instantaneous power consumption Pmax;
(2) according to the discreet value of system power dissipation, a power is selected to be P
0pSU, wherein, P
0<Pmax;
(3) determine the specification of electric capacity, withstand voltage selects 16V, and capacitance can according to following formula:
Wherein: I represents charging current, t
1represent initial time, t
2represent the charging termination moment, U
1represent initial voltage and 0V, the U of electric capacity
2what represent electric capacity is full of voltage and 12V;
(4) suitable electric capacity module can be selected according to the capacitance determined in step (3), withstand voltage and duration of charging;
(5), after above parameter is determined, the DC electric capacity module of institute's type selecting being added in program storage unit (PSU) exports between the link of CPUVR input end.
As preferably, the described charging termination moment determines the time continued according to farsighted frequency accelerated motion.
Compared to the prior art a kind of method for designing utilizing electric capacity to take into account AC power supplies cost and cpu performance of the present invention, has following beneficial effect:
(1) adopt electric capacity to be placed in the input feeder ear of server master board CPUVR, utilize the characteristic realizing high-power charging and discharging fast of electric capacity;
(2) there is large bulk capacitance module at the 12V input end of CPUVR; When the moment power consumption of CPU is too high, system power dissipation exceedes the peak power output P of program storage unit (PSU)
0time, provide instantaneous energy by electric capacity module;
(3) CPU is provided to do energy needed for the farsighted frequency accelerated motion short time by introducing electric capacity module, can when not affecting cpu performance, select the program storage unit (PSU) that output power is lower, reduce the cost of program storage unit (PSU), enhance the cost performance of server.
As can be seen here, the present invention have reasonable in design, structure is simple, easy to use, cost-effective feature, thus, have good value for applications.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Accompanying drawing 1 is the structural representation of generic server main board system;
The power waveform figure of accompanying drawing 2 for CPU does when farsighted frequency acceleration and turboboost action.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment 1
Utilize electric capacity to take into account a method for designing for AC power supplies cost and cpu performance, step is as follows:
(1) when determining that CPU does farsighted frequency acceleration (turboboost) action, system maximum instantaneous power consumption Pmax;
(2) according to the discreet value of system power dissipation, a power is selected to be P
0pSU, wherein, P
0<Pmax;
(3) determine the specification of electric capacity, withstand voltage selects 16V, and capacitance can according to following formula:
Wherein: I represents charging current, t
1represent initial time, t
2represent the charging termination moment (time lasting according to farsighted frequency accelerated motion is determined), U
1represent initial voltage and 0V, the U of electric capacity
2what represent electric capacity is full of voltage and 12V;
(4) suitable electric capacity module can be selected according to the capacitance determined in step (3), withstand voltage and duration of charging;
(5) DC after above parameter is determined, as shown in Figure 1, the electric capacity module of institute's type selecting being added in program storage unit (PSU) (PSU) exports between the link of CPUVR input end.
Specific works process: after CPU starts turboboost function, have of short duration instantaneous high power consumption.Now, electric capacity can provide CPU to do energy required for turboboost action instantaneously; After this action stops, super capacitor under the control of charge-discharge control unit, can be full of energy fast, to meet CPU at the upper instantaneous energy once done required for turboboost action.
As shown in Figure 1, AC is that electricity is converted to low-voltage DC to main board power supply by PSU; Place an electric capacity module at the CPUVR input end (input voltage is 12V) of mainboard, export first after the energy storage of super capacitor module, filtering with the DC realizing PSU, then be input to CPUVR input end, change through VR and power to CPU.
As shown in Figure 2, when CPU is when doing turboboost action, the change waveform of real time power consumption.Wherein, Pmax represents instantaneous power consumption values when doing turboboost action; P
0represent the peak power output of PSU; P
1represent the TDP(ThermalDesignPower of CPU), that is: meeting the CPU power consumption under the permission of CPU radiating condition.
For preventing PSU from triggering overpower protection, need again to continue to use output power is that the PSU(of P0 is with the cost of control PSU simultaneously); An electric capacity module is added between the power supply link exporting CPUVR at the DC of PSU to.
After server system powers on, CPU opens turboboost action, makes the power consumption of entire system exceed the peak power output P of PSU
0.Now, electric capacity module can in the very short time, provide energy for CPU does turboboost work, thus prevent PSU from exceeding peak power output P because of instantaneous power
0, trigger overpower protection.After turboboost action stops, system can, at short notice to super capacitor charging, make to be full of energy fast.Realize taking into account and adopt lower-wattage PSU to meet power demands when CPU does turboboost action.The contradiction of good solution AC power supplies cost and cpu performance.
Above-mentioned embodiment is only concrete case of the present invention; scope of patent protection of the present invention includes but not limited to above-mentioned embodiment; any claims according to the invention and any person of an ordinary skill in the technical field to its suitable change done or replacement, all should fall into scope of patent protection of the present invention.
Except the technical characteristic described in instructions, be the known technology of those skilled in the art.
Claims (2)
1. utilize electric capacity to take into account a method for designing for AC power supplies cost and cpu performance, it is characterized in that: step is as follows:
(1) when determining that CPU does farsighted frequency accelerated motion, system maximum instantaneous power consumption Pmax;
(2) according to the discreet value of system power dissipation, a power is selected to be P
0pSU, wherein, P
0<Pmax;
(3) determine the specification of electric capacity, withstand voltage selects 16V, and capacitance can according to following formula:
Wherein: I represents charging current, t
1represent initial time, t
2represent the charging termination moment, U
1represent initial voltage and 0V, the U of electric capacity
2what represent electric capacity is full of voltage and 12V;
(4) suitable electric capacity module can be selected according to the capacitance determined in step (3), withstand voltage and duration of charging;
(5), after above parameter is determined, the DC electric capacity module of institute's type selecting being added in program storage unit (PSU) exports between the link of CPUVR input end.
2. a kind of method for designing utilizing electric capacity to take into account AC power supplies cost and cpu performance according to claim 1, is characterized in that: the described charging termination moment determines the time continued according to farsighted frequency accelerated motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510533684.6A CN105159428A (en) | 2015-08-27 | 2015-08-27 | Capacitor based design method for balancing AC power supply cost and CPU performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510533684.6A CN105159428A (en) | 2015-08-27 | 2015-08-27 | Capacitor based design method for balancing AC power supply cost and CPU performance |
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ID=54800310
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106919240A (en) * | 2015-12-28 | 2017-07-04 | 伊姆西公司 | Method and apparatus for being powered to processor |
| CN112631413A (en) * | 2020-12-07 | 2021-04-09 | 合肥联宝信息技术有限公司 | Power adjusting method and device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104991626A (en) * | 2015-06-23 | 2015-10-21 | 浪潮电子信息产业股份有限公司 | Design method giving consideration to both PSU cost and CPU performance of server system |
-
2015
- 2015-08-27 CN CN201510533684.6A patent/CN105159428A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104991626A (en) * | 2015-06-23 | 2015-10-21 | 浪潮电子信息产业股份有限公司 | Design method giving consideration to both PSU cost and CPU performance of server system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106919240A (en) * | 2015-12-28 | 2017-07-04 | 伊姆西公司 | Method and apparatus for being powered to processor |
| US10564696B2 (en) | 2015-12-28 | 2020-02-18 | EMC IP Holding Company, LLC | Method and apparatus for supplying power to a processor |
| US10936042B2 (en) | 2015-12-28 | 2021-03-02 | EMC IP Holding Company, LLC | Method and apparatus for supplying power to a processor |
| CN106919240B (en) * | 2015-12-28 | 2022-12-09 | 伊姆西Ip控股有限责任公司 | Method and apparatus for supplying power to a processor |
| CN112631413A (en) * | 2020-12-07 | 2021-04-09 | 合肥联宝信息技术有限公司 | Power adjusting method and device |
| CN112631413B (en) * | 2020-12-07 | 2022-02-08 | 合肥联宝信息技术有限公司 | Power adjusting method and device |
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Application publication date: 20151216 |
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