CN104571465A - Design method for achieving CPU (Central Processing Unit) power supply phase dynamic adjustment - Google Patents
Design method for achieving CPU (Central Processing Unit) power supply phase dynamic adjustment Download PDFInfo
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- CN104571465A CN104571465A CN201510032005.7A CN201510032005A CN104571465A CN 104571465 A CN104571465 A CN 104571465A CN 201510032005 A CN201510032005 A CN 201510032005A CN 104571465 A CN104571465 A CN 104571465A
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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
- G06F1/32—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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- 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
- G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
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- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a design method for achieving CPU power supply phase dynamic adjustment. According to the method, a CPU circuit comprises three sections of a current detection section, a control section and a CPU power supply section, wherein the current detection section is used for detecting CPU power supply current, the control section is used for controlling the opening and closing of each phase circuit, and the power supply section is used for supplying corresponding current and voltage to a working CPU. The conversion efficiency of the power supply circuit is related to load, namely the greater the load is, the higher the conversion efficiency is, and the conversion efficiency of the power supply circuit is improved by reducing the number of power supply phases and increasing the load of the remaining phases when the CPU is at low load. The design method for achieving CPU power supply phase dynamic adjustment achieves the purpose of energy saving of a main board through dynamic adjustment of the number of the CPU power supply phases by changing multi-phase power supply of the CPU power supply circuit into single-phase or double-phase power supply when the CPU is in low-load operation for improving the conversion efficiency of the CPU power supply circuit.
Description
Technical field
The present invention relates to computing machine energy-saving design field, be specifically related to a kind of CPU of realization to power the method for designing of number of phases dynamic adjustments, be mainly used in the design of mainboard CPU power supply energy-saving, when CPU is in low loaded work piece, the feed circuit of CPU are become single-phase or two-phase from heterogeneous power supply power, increase the conversion efficiency of feed circuit.
Background technology
CPU is one of important element of computer motherboard, and CPU is generally made up of arithmetic logic unit, control module and storage element, and the CPU unit that mainly consumes energy is arithmetic element and control module.CPU is one of larger device that computer motherboard consumes energy, and is also one of important devices determining mainboard power consumption size simultaneously.Therefore CPU power-supply service is most important in motherboard design process.
CPU feed circuit are generally carry out three-phase or the design of four phase feed circuit according to CPU peak power, but the operating load of CPU is about 30% in most cases, is not operate at full capacity, so CPU power pack can not high efficiency work.The conversion efficiency of feed circuit is relevant with load, and the larger conversion efficiency of load is higher, and because the CPU most of the time is operated in low load model, therefore CPU feed circuit conversion efficiency is low, causes the stand-by power consumption of mainboard bigger than normal.For notebook, when notebook is by lithium battery power supply, because CPU feed circuit conversion efficiency is lower, indirectly shorten notebook battery-powered time stand-by time.
Summary of the invention
The technical problem to be solved in the present invention is: therefore in order to improve the conversion efficiency of CPU feed circuit, is necessary to invent a kind of CPU and powers the method for designing of number of phases dynamic adjustments, improve the conversion efficiency of CPU feed circuit, to reach the energy-conservation object of mainboard.
The technical solution adopted in the present invention is:
A kind of CPU of realization powers the method for designing of number of phases dynamic adjustments, in described method, the circuit of CPU comprises 3 parts, current detecting part, control section and CPU power pack, wherein current detecting part is for detecting CPU supply current, control section is for controlling opening and shutting off of each circuitry phase, and power pack is used for for CPU work provides corresponding voltage and electric current; The conversion efficiency of feed circuit is relevant with load, and the larger conversion efficiency of load is higher, and CPU by reducing the power supply number of phases, increases the load of the residue number of phases when low load, improves the conversion efficiency of feed circuit.
The operating procedure of described method is as follows: mainboard powers on after start, each circuitry phase that CPU powers all is opened, current detecting part divides and starts to detect cpu load electric current, and cpu load size of current is fed back to control section, control section, according to the size of cpu load electric current, carries out regulating opening and shutting off of each circuitry phase of power pack.
When cpu load electric current comparatively large (cpu load is more than 50%), power pack each circuitry phase Differential Output electric current, for CPU work provides voltage and current.
When cpu load is less (cpu load is below 50%), power pack conversion efficiency is lower, control section closes power pack 1 to 3 circuitry phase according to cpu load size of current, cpu load electric current provides by remaining each circuitry phase, remain each circuitry phase output current to increase, namely load strengthens, thus improves the conversion efficiency of power pack, finally reaches the energy-conservation object of mainboard.
Beneficial effect of the present invention is: the present invention to be powered the number of phases by dynamic adjustments CPU, when CPU is in low loaded work piece, the feed circuit of CPU are become single-phase or two-phase from heterogeneous power supply power, improve the conversion efficiency of CPU feed circuit, reach the object that mainboard is energy-conservation.
Accompanying drawing explanation
Fig. 1 is CPU power supply energy-saving theory diagram of the present invention.
Embodiment
With reference to the accompanying drawings, by embodiment, the present invention is further described:
Embodiment 1:
A kind of CPU of realization powers the method for designing of number of phases dynamic adjustments, in described method, the circuit of CPU comprises 3 parts, current detecting part, control section and CPU power pack, wherein current detecting part is for detecting CPU supply current, control section is for controlling opening and shutting off of each circuitry phase, and power pack is used for for CPU work provides corresponding voltage and electric current; The conversion efficiency of feed circuit is relevant with load, and the larger conversion efficiency of load is higher, and CPU by reducing the power supply number of phases, increases the load of the residue number of phases when low load, improves the conversion efficiency of feed circuit.
Embodiment 2:
On the basis of embodiment 1, described in the present embodiment, the operating procedure of method is as follows: mainboard powers on after start, each circuitry phase that CPU powers all is opened, current detecting part divides and starts to detect cpu load electric current, and cpu load size of current is fed back to control section, control section, according to the size of cpu load electric current, carries out regulating opening and shutting off of each circuitry phase of power pack.
Embodiment 3:
On the basis of embodiment 2, the present embodiment is when cpu load electric current comparatively large (cpu load is more than 50%), and power pack each circuitry phase Differential Output electric current, for CPU work provides voltage and current.
Embodiment 4:
On the basis of embodiment 2, the present embodiment is (cpu load is below 50%) when cpu load is less, power pack conversion efficiency is lower, control section closes power pack 1 to 3 circuitry phase according to cpu load size of current, cpu load electric current provides by remaining each circuitry phase, remains each circuitry phase output current and increases, and namely load strengthens, thus improve the conversion efficiency of power pack, finally reach the energy-conservation object of mainboard.
Above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (4)
1. one kind realizes CPU and to power the method for designing of number of phases dynamic adjustments, it is characterized in that: in described method, the circuit of CPU comprises 3 parts, current detecting part, control section and CPU power pack, wherein current detecting part is for detecting CPU supply current, control section is for controlling opening and shutting off of each circuitry phase, and power pack is used for for CPU work provides corresponding voltage and electric current; CPU by reducing the power supply number of phases, increases the load of the residue number of phases when low load, improves the conversion efficiency of feed circuit.
2. a kind of CPU of realization according to claim 1 powers the method for designing of number of phases dynamic adjustments, it is characterized in that, the operating procedure of described method is as follows: mainboard powers on after start, each circuitry phase that CPU powers all is opened, current detecting part divides and starts to detect cpu load electric current, and cpu load size of current is fed back to control section, control section, according to the size of cpu load electric current, carries out regulating opening and shutting off of each circuitry phase of power pack.
3. a kind of CPU of realization according to claim 2 powers the method for designing of number of phases dynamic adjustments, it is characterized in that: when cpu load is more than 50%, power pack each circuitry phase Differential Output electric current, for CPU work provides voltage and current.
4. a kind of CPU of realization according to claim 2 powers the method for designing of number of phases dynamic adjustments, it is characterized in that: cpu load is below 50%, power pack conversion efficiency is lower, control section closes power pack 1 to 3 circuitry phase according to cpu load size of current, and cpu load electric current provides by remaining each circuitry phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510032005.7A CN104571465A (en) | 2015-01-22 | 2015-01-22 | Design method for achieving CPU (Central Processing Unit) power supply phase dynamic adjustment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510032005.7A CN104571465A (en) | 2015-01-22 | 2015-01-22 | Design method for achieving CPU (Central Processing Unit) power supply phase dynamic adjustment |
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| CN104571465A true CN104571465A (en) | 2015-04-29 |
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| CN201510032005.7A Pending CN104571465A (en) | 2015-01-22 | 2015-01-22 | Design method for achieving CPU (Central Processing Unit) power supply phase dynamic adjustment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107239127A (en) * | 2017-06-09 | 2017-10-10 | 山东超越数控电子有限公司 | A kind of VRM method for managing power supply based on server B MC |
| CN108333531A (en) * | 2018-01-26 | 2018-07-27 | 郑州云海信息技术有限公司 | A kind of multiphase switch power source efficiency debugging apparatus, method and system |
| CN110727339A (en) * | 2019-09-11 | 2020-01-24 | 无锡江南计算技术研究所 | Real-time energy consumption management and control technology for multiphase parallel working mode power supply |
| CN110908486A (en) * | 2019-10-25 | 2020-03-24 | 苏州浪潮智能科技有限公司 | Control method, system and equipment for server multi-phase power supply |
| CN111262318A (en) * | 2018-11-30 | 2020-06-09 | 比亚迪股份有限公司 | Electric automobile and vehicle-mounted charger control method and device thereof |
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| CN101581960A (en) * | 2008-06-20 | 2009-11-18 | 鸿富锦精密工业（深圳）有限公司 | CPU supply circuit |
| CN102508542A (en) * | 2011-11-18 | 2012-06-20 | 百度在线网络技术（北京）有限公司 | Method, system and device for controlling power supply for supplying power to server in centralized way |
| CN103412637A (en) * | 2013-08-12 | 2013-11-27 | 浪潮电子信息产业股份有限公司 | Energy-saving method of phase number variable CPU VR (Central Processing Unit Voltage Regulation) |
| CN203966053U (en) * | 2014-02-09 | 2014-11-26 | 长春职业技术学院（长春市职业技术教育中心长春市财政学校） | A kind of power supply control apparatus of computer CPU |
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2015
- 2015-01-22 CN CN201510032005.7A patent/CN104571465A/en active Pending
Patent Citations (4)
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| CN101581960A (en) * | 2008-06-20 | 2009-11-18 | 鸿富锦精密工业（深圳）有限公司 | CPU supply circuit |
| CN102508542A (en) * | 2011-11-18 | 2012-06-20 | 百度在线网络技术（北京）有限公司 | Method, system and device for controlling power supply for supplying power to server in centralized way |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107239127A (en) * | 2017-06-09 | 2017-10-10 | 山东超越数控电子有限公司 | A kind of VRM method for managing power supply based on server B MC |
| CN108333531A (en) * | 2018-01-26 | 2018-07-27 | 郑州云海信息技术有限公司 | A kind of multiphase switch power source efficiency debugging apparatus, method and system |
| CN108333531B (en) * | 2018-01-26 | 2021-03-09 | 苏州浪潮智能科技有限公司 | Multiphase switching power supply efficiency debugging device, method and system |
| CN111262318A (en) * | 2018-11-30 | 2020-06-09 | 比亚迪股份有限公司 | Electric automobile and vehicle-mounted charger control method and device thereof |
| CN110727339A (en) * | 2019-09-11 | 2020-01-24 | 无锡江南计算技术研究所 | Real-time energy consumption management and control technology for multiphase parallel working mode power supply |
| CN110908486A (en) * | 2019-10-25 | 2020-03-24 | 苏州浪潮智能科技有限公司 | Control method, system and equipment for server multi-phase power supply |
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Application publication date: 20150429 |