CN102200821A - Computer and power management method thereof - Google Patents
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Abstract
The invention provides a computer and a power management method thereof. The computer comprises a first power supply, a second power supply, a first power consumption module, a second power consumption module and a power supply control module, wherein the first power supply is used for outputting a first voltage; the second power supply is used for outputting a second voltage; and the power supply control module is respectively connected with the first power supply, the second power supply, the first power consumption module and the second power consumption module, and used for selecting one (which is lower in voltage) of the first power supply and the second power supply so as to supply power for the first power consumption module or the second power consumption module. According to the scheme of the invention, the power conversion efficiency of the computer is improved.
Description
Technical field
The present invention relates to computer power management, be meant the method for a kind of computing machine and power management thereof especially.
Background technology
Existing computing machine, particularly notebook computer have a plurality of power supply power-supply units, and as adapter power supply and powered battery, wherein adapter is one of power supply of notebook computer, and battery also is one of power supply of notebook computer.The multiple power supply power supply mode of existing notebook computer, but in can only be at one time with wherein a kind of power supply power supply, as with the adapter power supply or use powered battery, when adapter and battery exist simultaneously, select for use adapter to power.And battery also has a plurality ofly, and during one of them powered battery, other battery is not powered.
The inventor finds that there are the following problems at least in the prior art in realizing process of the present invention:
The power supply plan of existing notebook computer, synchronization can only be with the power supply of a kind of power supply, when running into system overheat, can take mode such as frequency reducing to reduce power consumption usually to CPU, reduce temperature; When running into very the large program operation, power consumption is excessive, near or when exceeding adapter or battery power limits, also can take the frequency reducing mode to handle to CPU, make the performance of system that very big loss is arranged like this, can put to no little inconvenience to user's use.
Summary of the invention
The technical problem to be solved in the present invention provides the method for a kind of computing machine and power management thereof, has improved the power supply conversion efficiency of computing machine.
For solving the problems of the technologies described above, the technical scheme that embodiments of the invention provide is as follows:
On the one hand, provide a kind of computing machine, comprising: first power supply is used to export first voltage; Second source is used to export second voltage; First power consumption module; Second power consumption module; And
Energy supply control module, be connected with described first power supply, described second source, described first power consumption module and described second power consumption module respectively, being used at described first power supply and the low power supply of described second source selection voltage is described first power consumption module and/or the power supply of second power consumption module.
Preferably, described energy supply control module comprises:
First switch is connected with described first power supply, and is connected with second power consumption module with described first power consumption module respectively;
Second switch is connected with described second source, and is connected with described second power consumption module with described first power consumption module respectively;
First switch control module is used for connecting described first switch and disconnecting described second switch when described first voltage is lower than described second voltage; Perhaps when described second voltage is lower than described first voltage, connects described second switch and disconnect described first switch.
Preferably, described energy supply control module comprises:
The 3rd switch is connected with described first power supply, and is connected with described second power consumption module;
The 4th switch is connected in series with described the 3rd switch, and is connected with first power consumption module;
The 5th switch is connected with described second source, and is connected with described first power consumption module;
The 6th switch is connected in series with described the 5th switch, and is connected with described second power consumption module;
Detection module is used to detect the power consumption of described first power consumption module or second power consumption module;
The second switch control module, the power consumption that is used for being lower than described second voltage and described second power consumption module at described first voltage is during greater than the power consumption of described first power consumption module, when perhaps the power consumption that is lower than described first voltage and described first power consumption module at described second voltage is greater than the power consumption of described second power consumption module, connect described the 3rd switch and the 5th switch, and disconnect described the 4th switch and the 6th switch.
Preferably, described detection module is specially:
Heat sensor, the heat that produces when being used to detect the operation of described first power consumption module or second power consumption module, and the heat that produces during according to described first power consumption module operation is estimated the power consumption of described first power consumption module or the heat that produces during according to described second power consumption module operation is estimated the power consumption of described second power consumption module; Perhaps
The current sense unit, electric current when being used to detect the operation of described first power consumption module or second power consumption module, and the electric current during according to described first power consumption module operation is estimated the power consumption of described first power consumption module or the electric current during according to described second power consumption module operation is estimated the power consumption of described second power consumption module.
Preferably, described first power consumption module is specially: CPU or GPU; Described second power consumption module is specially: input-output apparatus, PCI equipment or internal memory.
Embodiments of the invention also provide a kind of computing machine, comprising:
First power supply is used to export first voltage;
Second source is used to export second voltage;
First power consumption module;
Second power consumption module; And
Energy supply control module, be connected with described first power supply, described second source, described first power consumption module and described second power consumption module respectively, being used to control described first power supply is described first power consumption module power supply, and described second source is described second power consumption module power supply.
Preferably, described energy supply control module comprises:
The 3rd switch is connected with described first power supply, and is connected with described second power consumption module;
The 4th switch is connected in series with described the 3rd switch, and is connected with first power consumption module;
The 5th switch is connected with described second source, and is connected with described first power consumption module;
The 6th switch is connected in series with described the 5th switch, and is connected with described second power consumption module;
Detection module is used to detect the power consumption of described first power consumption module or second power consumption module;
The second switch control module, the power consumption that is used for being lower than described second voltage and described second power consumption module at described first voltage is during greater than the power consumption of described first power consumption module, when perhaps the power consumption that is lower than described first voltage and described first power consumption module at described second voltage is greater than the power consumption of described second power consumption module, connect described the 3rd switch and the 5th switch, and disconnect described the 4th switch and the 6th switch.
Embodiments of the invention also provide a kind of method of computer electric power management, and described method is applied in the computing machine, and described computing machine has first power supply, second source, first power consumption module and second power consumption module; This method comprises:
Obtain described first power supply to the input voltage of power consumption module and described second source input voltage to power consumption module;
Selecting the low power supply of voltage in described first power supply and described second source is described first power consumption module and/or the power supply of second power consumption module.
Preferably, selecting the low power supply of voltage in described first power supply and described second source is that the step that described first power consumption module and/or second power consumption module are powered is specially:
When first voltage of described first power supply output is lower than second voltage of described second source output, connect first switch that is connected with described first power supply and is connected with described second power consumption module with described first power consumption module respectively, and disconnection is connected with described second source and the second switch that is connected with described second power consumption module with described first power consumption module respectively; Perhaps
When described second voltage is lower than described first voltage, connects described second switch, and disconnect described first switch.
Preferably, selecting the low power supply of voltage in described first power supply and described second source is that the step that described first power consumption module and/or second power consumption module are powered is specially:
The power consumption that is lower than second voltage of described second source output and described second power consumption module at first voltage of described first power supply output is during greater than the power consumption of described first power consumption module, when perhaps the power consumption that is lower than described first voltage and described first power consumption module at described second voltage is greater than the power consumption of described second power consumption module, connect described the 3rd switch and the 5th switch, and disconnect described the 4th switch and the 6th switch;
Wherein, described the 3rd switch is connected with described first power supply, and is connected with described second power consumption module; Described the 4th switch is connected with described the 3rd switch serial connection and with described first power consumption module; Described the 5th switch is connected with described second source and is connected with described first power consumption module; Described the 6th switch is connected with described the 5th switch serial connection and with described second power consumption module.
Embodiments of the invention also provide a kind of method of computer electric power management, and described method is applied in the computing machine, and described computing machine has first power supply, second source, first power consumption module and second power consumption module; This method comprises:
Obtain first voltage of described first power supply output, second voltage of described second source output;
Satisfy when pre-conditioned at described first voltage and described second voltage, controlling described first power supply is described first power consumption module power supply, and described second source is described second power consumption module power supply.
Preferably, said method also comprises:
Obtain the power consumption of described first power consumption module and the power consumption of described second power consumption module;
Describedly satisfy when pre-conditioned at described first voltage and described second voltage, controlling described first power supply is described first power consumption module power supply, and described second source is that the step of described second power consumption module power supply is specially:
Be lower than described second voltage at described first voltage, and the power consumption of described second power consumption module is during greater than the power consumption of described first power consumption module, when perhaps the power consumption that is lower than described first voltage and described first power consumption module at described second voltage is greater than the power consumption of described second power consumption module, controlling described first power supply is described first power consumption module power supply, and described second source is described second power consumption module power supply.
Embodiments of the invention have following beneficial effect:
Such scheme, the low power supply of selection voltage is the power consumption module power supply in the system, according to the input voltage of power consumption module relation to the conversion efficiency of power supply, when the power consumption of power consumption module is big, can select the low power supply of power consumption module input voltage is powered for this power consumption module, help reducing loss, improve the conversion efficiency of power supply, and no longer subtract consumption, thereby avoided normally to move the inconvenience that brings to the user owing to frequency reducing makes program with the frequency reducing mode.
Description of drawings
Fig. 1 is the structural representation of embodiments of the invention computing machine;
Fig. 2 is power supply in the computing machine shown in Figure 1 and another annexation figure of power consumption module;
Fig. 3 is the power supply in the computing machine shown in Figure 1 and the another annexation figure of power consumption module;
Fig. 4 is the power supply conversion efficiency synoptic diagram in the computer power management method of the present invention;
Fig. 5 is another example structure figure of computing machine of the present invention;
Fig. 6 is a specific implementation structural drawing of computing machine shown in Figure 5.
Embodiment
For technical matters, technical scheme and advantage that embodiments of the invention will be solved is clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
Embodiments of the invention are at the computer power management that does not have in the prior art at many power supplys, and can only use one of them power supply to power simultaneously, when the power consumption components of computing machine is overheated, the problem that can not effectively manage to power supply, power supply mode between a kind of many power supplys that can adjust computing machine flexibly is provided, improves the computing machine of power supply conversion efficiency of computing machine and the method for power management thereof.
As shown in Figure 1, embodiments of the invention computing machine 10 comprises:
First power consumption module 131; Second power consumption module 132; And
Energy supply control module 12, be connected with described first power supply 111, described second source 112, described first power consumption module 131 and described second power consumption module 132 respectively, being used at described first power supply and the low power supply of described second source selection voltage is described first power consumption module and/or the power supply of second power consumption module.
Utilizing energy supply control module to select the low power supply of voltage among this embodiment in described first power supply and described second source is described first power consumption module and/or the power supply of second power consumption module, when the power consumption of some power consumption module is big, can select the low power supply of voltage to be the big power consumption module power supply of this power consumption, help reducing loss, in prior art, power for all power consumption module with a fixed power source always, improved power supply conversion efficiency.
Wherein, the power supply conversion efficiency of computing machine and the relation between the power consumption module can following formula and shown in Figure 4: Psw=Won*fs=1/2*VIN*IPK*fs* (Qgs2+Qgd)/Ig; Wherein Psw refers to switching loss, and Won refers to the power consumption of switching tube in the time of conducting; Fs refers to switching frequency; VIN refers to input voltage; IPK refers to peak point current; Qgs2 refers to Qgs2; Qgs is a gate/source charging charge amount; Qgd finger grid/drain charge the quantity of electric charge; Ig refers to grid source drive current.
Formula and Fig. 5 are as can be seen thus, input voltage V1 is when diminishing, the conversion efficiency of power supply increases, and the ratio that increases is also very big, therefore, according to the relation of input voltage to the conversion efficiency of power supply, when the power consumption of power consumption module is big, can reduce selection the low power supply of power consumption module input voltage is this power consumption module power supply, help reducing loss, improve the conversion efficiency of power supply, and no longer subtract consumption, thereby avoided normally to move the inconvenience that brings to the user owing to frequency reducing makes program with the frequency reducing mode.
As shown in Figure 2, on the basis of the described embodiment of above-mentioned Fig. 1, this first power consumption module 131 and second power consumption module 132 power consumption when operation can be different, and described energy supply control module 12 can specifically comprise:
First switch control module 123, be used for when first voltage of described first power supply 111 is lower than second voltage of described second source 112, connect described first switch 124, and disconnect described second switch 125, making the first low power supply 111 of voltage is first power consumption module 131 and 132 power supplies of second power consumption module; Power consumption regardless of this first power consumption module 131 and second power consumption module 132, if the power consumption of first power consumption module 131 is greater than the power consumption of second power consumption module 132, first power supply 111 that electricity consumption this moment is forced down is these first power consumption module, 131 power supplies, now, conversion efficiency and utilization factor between power supply have been improved than in prior art, be the power consumption module power supply with a fixing power supply always; If the power consumption of first power consumption module 131 is less than the power consumption of second power consumption module 132, be to select the first low power supply 111 of voltage to be these second power consumption module, 132 power supplies too, utilization is powered for power consumption module to the low power supply of the input voltage of power consumption module, has improved the switching efficiency and the utilization factor of power supply; Wherein, first voltage here is the output voltage of first power supply, also is the input voltage to power consumption module, and second voltage is the output voltage of second source, also is the input voltage to power consumption module.
Equally, when second voltage of described second source 112 is lower than first voltage of described first power supply 111, connect described second switch 125, and disconnect described first switch 124; In this example, too, power consumption regardless of first power consumption module 131 and second power consumption module 132, all be to select the low power supply of voltage to be this first power consumption module 131 and 132 power supplies of second power consumption module, in prior art, utilize a power supply to be all power consumption module power supplies always, improved the conversion efficiency and the utilization factor of power supply.
As shown in Figure 3, on above-mentioned basis embodiment illustrated in fig. 1, be that example describes still with first power consumption module 131 and second power consumption module 132; Described energy supply control module 12 comprises:
The 3rd switch 124 is connected with described first power supply 111, and is connected with second power consumption module 132;
The 4th switch 125 is connected in series with described the 3rd switch 124, and is connected with first power consumption module 131;
The 5th switch 126 is connected with described second source 112, and is connected with described first power consumption module 131;
The 6th switch 127 is connected in series with described the 5th switch 126, and is connected with described second power consumption module 132;
Detection module (not looking out among the figure) is used to detect the power consumption of described first power consumption module 131 or second power consumption module 132;
Second switch control module 128, be used for first voltage at described first power supply 111 and be lower than the power consumption of the power consumption of second voltage of described second source 112 and described second power consumption module 132 greater than described first power consumption module 131, when perhaps the power consumption that is lower than first voltage of described first power supply 111 and described first power consumption module 131 at second voltage of described second source 112 is greater than the power consumption of described second power consumption module 132, connect described the 3rd switch 124 and the 5th switch 126, and disconnect described the 4th switch 125 and the 6th switch 127; Thereby making the low power supply of the input voltage of power consumption module is that the high power consumption module of power consumption is powered, and has reduced the input voltage of power consumption module so widely, has improved the conversion efficiency of power supply;
Among this embodiment, when the 3rd switch 124 and 126 connections of the 5th switch, when the 4th switch 125 and the 6th switch 127 disconnected, first power supply 111 was 132 power supplies of second power consumption module, and second source 112 is 131 power supplies of first power consumption module simultaneously;
Among this embodiment, also changeable type is: when the 3rd switch 124 and 125 connections of the 4th switch, first power supply is 131 power supplies of first power consumption module; Simultaneously, when the 5th switch 126 and 127 connections of the 6th switch, second source is 132 power supplies of second power consumption module; At this moment, the 3rd switch 124 is when connecting with the 4th switch 125, the 3rd switch 124 does not just need to be connected with second power consumption module 132, and the 5th switch 126 is when connecting with the 6th switch 127, and the 5th switch 126 does not just need to be connected with first power consumption module 131;
In the foregoing description, first power supply, second source, the title of first power consumption module and second power consumption module is only used for convenience of description, and is not used in power supply and the power consumption module that limits reality;
In addition, if first voltage of first power supply 111 is higher than second voltage of second source 12, the power consumption of second power consumption module 132 is during greater than the power consumption of first power consumption module 131, also can connect the 3rd switch 124 and the 5th switch 126, disconnect the 4th switch 125 and the 6th switch 127 simultaneously, though this moment, first power supply 111 (power supply that voltage is high) is power consumption module (the i.e. second power consumption module) power supply of high power consumption, and second source 112 (being the low power supply of voltage) is the power consumption module of low-power consumption (i.e. first power consumption module) power supply simultaneously; Because the present embodiment wherein power consumption module of a part of high power consumption is to be powered by the power supply of low-voltage, and with the power consumption module decentralized power supply, in prior art, use the mode of powering for all power consumption module with a kind of fixing power supply always, under the bigger situation of the power consumption of power consumption module, the scheme of present embodiment has improved the conversion efficiency and the utilization factor of power supply;
In addition, the embodiment that this is shown in Figure 3, can certainly realize function shown in Figure 2:
When being lower than the voltage of second source 112 as voltage at first power supply 111, connect the 3rd switch 124 and the 4th switch 125, disconnect the 5th switch 126 simultaneously, the 6th switch 127 can disconnect also and can not disconnect, making first power supply 111 like this, too is first power consumption module 131 and 132 power supplies of second power consumption module;
Equally, when being lower than first voltage of first power supply 111 as second voltage at second source 112, connect the 5th switch 126 and the 6th switch 127, disconnect the 3rd switch 124 simultaneously, the 4th switch 125 can disconnect also and can not disconnect, and so also making second source 112 is first power consumption module 131 and 132 power supplies of second power consumption module;
Certainly, above-mentioned embodiment illustrated in fig. 3 in, can also between the 4th switch 125 and first power consumption module 131, increase some switches again, between the 6th switch 127 and second power consumption module 132, also increase some switches, the logical relation of these switches is as the logical relation of the 3rd switch 124, the 4th switch 125, the 5th switch 126 and the 6th switch 127; These switches can unrestrictedly make up, but basic array mode embodiment as shown in Figure 3.
Wherein, the detection module in the foregoing description is specially:
Heat sensor, the heat that produces when being used to detect described first power consumption module 131 or 132 operations of second power consumption module, and the heat that produces during according to described first power consumption module, 131 operations is estimated the power consumption of described first power consumption module 131 or the heat that produces during according to described second power consumption module, 132 operations is estimated the power consumption of described second power consumption module 132; Perhaps
The current sense unit, electric current when being used to detect described first power consumption module 131 or 132 operations of second power consumption module, and the electric current during according to described first power consumption module, 131 operations is estimated the power consumption of described first power consumption module 131 or the electric current during according to described second power consumption module, 132 operations is estimated the power consumption of described second power consumption module.
During specific implementation, these heat sensors and electric power detecting device should be separately positioned near first power consumption module 131 and near second power consumption module 132.
In addition, in the another embodiment of the present invention, described energy supply control module can also be specifically realizes that by the functional module of software and so on this energy supply control module comprises:
First controlling sub is used for when described first voltage is lower than described second voltage, and the power consumption of described first power consumption module is during greater than described second power consumption module, and controlling described first power supply is described first power consumption module power supply;
Second controlling sub is used for when described first controlling sub is controlled described first power supply and is the power supply of described first power consumption module, and controlling described second source is described second power consumption module power supply.Can reach too the power consumption module in the system is powered by different power supplys respectively, reach decentralized power supply, improve the purpose of power utilization rate.
Preferably, among above-mentioned Fig. 2-embodiment illustrated in fig. 3, described first power consumption module 131 is specially: CPU (central processing unit) and/or GPU (Graphic Processing Unit, graphic process unit); Described second power consumption module 132 is specially: input-output apparatus, PCI equipment and/or internal memory; Certainly the power consumption module in the above-mentioned implementation column shown in Figure 2 also can be any of computer hardware equipments such as CPU, GPU input-output apparatus, PCI equipment and internal memory.
In addition, in the foregoing description, this first power supply 111 can be the battery of notebook computer, and second source 112 can be the adapter of notebook computer; Certainly, this first power supply 111 also can be the adapter of notebook computer, and second source 112 also can be the battery of notebook computer; When battery and adapter existed simultaneously, just control was powered with adapter; When having closed adapter, also can control battery-powered separately;
Certainly this first power supply 111 and this second source 112 all can be the battery of notebook computer, and at this moment, first voltage of first power supply 111 and second voltage of second source 112 just need detect with an independent test cell; And it is that the scheme that power consumption module is powered is applicable to that also first power supply 111 and second source 112 are the situation of battery that the above embodiment of the present invention is selected the low power supply of voltage for use, and promptly the power supply of computing machine is a multi-cell electric power.
Be CPU and GPU with first power consumption module 131 below, second power consumption module 132 is an example for other computer hardware equipment, and first power supply 111 and second source 112 are battery; The input voltage of adapter is usually above battery; In conjunction with above-mentioned embodiment shown in Figure 3, of the present invention one concrete Application Example is described:
Second voltage of second source 112 is lower than first voltage of first power supply 111;
The power consumption of first power consumption module 131 is greater than the power consumption of second power consumption module 132, and is arranged near CPU or the CPU heat sensor to system feedback, the power consumption of system excessive (as the temperature overheating of CPU);
Second switch control module 128 is connected the 3rd switch 124 and the 5th switch 126, disconnects the 4th switch 125 and the 6th switch 127 simultaneously, and making second source 112 is 131 power supplies of first power consumption module, and first power supply 111 is 132 power supplies of second power consumption module;
Certainly, second voltage of second source 112 also has first voltage condition that is higher than first power supply 111, under these situations, be that the 3rd switch 124 and the 5th switch 126 are connected too, disconnect the 4th switch 125 and the 6th switch 127 simultaneously, making second source 112 is 131 power supplies of first power consumption module, and first power supply 111 is 132 power supplies of second power consumption module;
That is to say, near CPU/GPU etc., place heat sensor, measure the temperature of CPU/GPU, feed back to system, system monitor overheated or the great situation of power consumption under, can pass through the described scheme of the above embodiments, cut off the adapter power supply and change battery-powered, under the overheated situation of system power dissipation, reduced input voltage like this to power consumption module, make the power supply conversion efficiency of system obtain large increase, thereby reduced shedding of heat, both solved because of the overheated system problem that causes has also solved and because of the adapter power consumption is too high system has been done the inconvenience that adjustment such as frequency reducing bring the user.
Fig. 4 is the conversion efficiency curve of system power supply under different voltages, can find out easily, and is very big to the influence of system power supply conversion efficiency when system's input voltage reduces, and conversion efficiency is promoted about 5%-8%, even more.And the loss on the system power supply conversion efficiency almost is to disseminate with the form of heat, and the described scheme of the above embodiment of the present invention can reduce temperature in the system effectively, and it is more comfortable that the user is used.
When system does not have connection adaptor and only uses powered battery, when if system is double cell or more power supplys, can do optimization to the system power supply design, dual battery system runs into power consumption when too high when system, just cutting off first battery changes by second powered battery simultaneously to the power supply of CPU and GPU, perhaps CPU and GPU are powered, change simultaneously by second battery other power consumption module power supply of system by first battery.Two batteries can not satisfy the problem that the system optimal performance is used simultaneously to system's power supply with regard to having solved because the power of battery is little.And the height of these two cell voltages is monitored by system end, and distributes the lower battery of voltage that the power supply of the big that part of power consumption module of power consumption is provided, and can effectively improve power-efficient like this, reduces loss, reduces system temperature.The solution of the present invention can be applicable to a plurality of batteries or electric supply system; And the solution of the present invention provides power supply mode flexibly, can make power supply conversion efficiency improve 5-8% at least, aspect design cost, adopts switch to realize, does not almost increase cost.And system stability and secure context also are to guarantee, devoid of risk.
As shown in Figure 5, embodiments of the invention also provide a kind of computing machine, comprising:
Energy supply control module 12, be connected with described first power supply 111, described second source 112, described first power consumption module 131 and described second power consumption module 132 respectively, being used to control described first power supply is described first power consumption module power supply, and described second source is described second power consumption module power supply.Wherein, first voltage here is the output voltage of first power supply, also is the input voltage to power consumption module, and second voltage is the output voltage of second source, also is to the input voltage to power consumption module.
This embodiment too, utilizing energy supply control module to control first power supply is the power supply of first power consumption module, second source is the power supply of second power consumption module, powers for all power consumption module with a fixed power source in prior art always, has improved the power utilization rate.
Concrete, as shown in Figure 6, described energy supply control module comprises:
The 3rd switch is connected with described first power supply, and is connected with described second power consumption module;
The 4th switch is connected in series with described the 3rd switch, and is connected with first power consumption module;
The 5th switch is connected with described second source, and is connected with described first power consumption module;
The 6th switch is connected in series with described the 5th switch, and is connected with described second power consumption module;
Detection module is used to detect the power consumption of described first power consumption module or second power consumption module;
The second switch control module, the power consumption that is used for being lower than described second voltage and described second power consumption module at described first voltage is during greater than the power consumption of described first power consumption module, when perhaps the power consumption that is lower than described first voltage and described first power consumption module at described second voltage is greater than the power consumption of described second power consumption module, connect described the 3rd switch and the 5th switch, and disconnect described the 4th switch and the 6th switch.
During specific implementation, can select the low power supply of voltage is high power consumption module power supply, in prior art, use the mode of powering for all power consumption module too always, under the bigger situation of the power consumption of power consumption module, improved the conversion efficiency and the utilization factor of power supply with a kind of fixing power supply.
Embodiments of the invention also provide a kind of method of computer electric power management, and described method is applied in the computing machine, and described computing machine has first power supply, second source, first power consumption module and second power consumption module; This method comprises:
Obtain described first power supply to the input voltage of power consumption module and described second source input voltage to power consumption module;
Selecting the low power supply of voltage in described first power supply and described second source is described first power consumption module and/or the power supply of second power consumption module.
Concrete, as, when first voltage of described first power supply output is lower than second voltage of described second source output, be described first power consumption module and/or the power supply of described second power consumption module by described first power supply; When described second voltage is lower than described first voltage, be described first power consumption module and/or the power supply of described second power consumption module by described second source.
Wherein, in conjunction with the Fig. 2 among the embodiment of aforementioned calculation machine, selecting the low power supply of voltage in described first power supply and described second source is that the step that described first power consumption module and/or second power consumption module are powered is specially:
When first voltage of described first power supply output is lower than second voltage of described second source output, connect first switch that is connected with described first power supply and is connected with described second power consumption module with described first power consumption module respectively, and disconnection is connected with described second source and the second switch that is connected with described second power consumption module with described first power consumption module respectively; Perhaps
When described second voltage is lower than described first voltage, connects described second switch, and disconnect described first switch.
In conjunction with above-mentioned embodiment shown in Figure 3, selecting the low power supply of voltage in described first power supply and described second source is that the step that described first power consumption module and/or second power consumption module are powered is specially again:
The power consumption that is lower than second voltage of described second source output and described second power consumption module at first voltage of described first power supply output is during greater than the power consumption of described first power consumption module, when perhaps the power consumption that is lower than described first voltage and described first power consumption module at described second voltage is greater than the power consumption of described second power consumption module, connect described the 3rd switch and the 5th switch, and disconnect described the 4th switch and the 6th switch;
Wherein, described the 3rd switch is connected with described first power supply, and is connected with described second power consumption module; Described the 4th switch is connected with described the 3rd switch serial connection and with described first power consumption module; Described the 5th switch is connected with described second source and is connected with described first power consumption module; Described the 6th switch is connected with described the 5th switch serial connection and with described second power consumption module.
Said method can also be realized by software function module: as described in first voltage be lower than as described in during second voltage, and the power consumption of described first power consumption module is during greater than described second power consumption module, controlling described first power supply is described first power consumption module power supply;
When described first power supply was the power supply of described first power consumption module, controlling described second source was described second power consumption module power supply.
This method embodiment is same according to the relation to the conversion efficiency of the input voltage of power consumption module and power supply, when the power consumption of power consumption module is big, can select the low power supply of voltage to be this high power consumption module power supply, help reducing loss, improve the conversion efficiency of power supply, and no longer subtract consumption, thereby avoided normally to move the inconvenience that brings to the user owing to frequency reducing makes program with the frequency reducing mode.
In addition, embodiments of the invention also provide a kind of method of computer electric power management, and described method is applied in the computing machine, and described computing machine has first power supply, second source, first power consumption module and second power consumption module; This method comprises:
Obtain first voltage of described first power supply output, second voltage of described second source output;
Satisfy when pre-conditioned at described first voltage and described second voltage, controlling described first power supply is described first power consumption module power supply, and described second source is described second power consumption module power supply.
During specific implementation, this method also comprises:
Obtain the power consumption of described first power consumption module and the power consumption of described second power consumption module;
In conjunction with above-mentioned Fig. 6, describedly satisfy when pre-conditioned at described first voltage and described second voltage, controlling described first power supply is described first power consumption module power supply, described second source is that the step of described second power consumption module power supply is specially:
Be lower than described second voltage at described first voltage, and the power consumption of described second power consumption module is during greater than the power consumption of described first power consumption module, when perhaps the power consumption that is lower than described first voltage and described first power consumption module at described second voltage is greater than the power consumption of described second power consumption module, controlling described first power supply is described first power consumption module power supply, and described second source is described second power consumption module power supply.
This method embodiment of the present invention is the different power consumption module for power supply by a plurality of power supplys equally simultaneously, further, can select the low power supply of voltage is high power consumption module power supply, in prior art, use the mode of powering for all power consumption module too with a kind of fixing power supply always, under the bigger situation of the power consumption of power consumption module, improved the conversion efficiency and the utilization factor of power supply.
Need to prove: among above-mentioned all embodiment, the power supply in the computing machine can have a plurality of, and first power supply and second source are respectively any one in these a plurality of power supplys; Power consumption module also can be for a plurality of, and first power consumption module and second power consumption module also are respectively any one in a plurality of power consumption module.
The above is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (12)
1. a computing machine is characterized in that, comprising: first power supply is used to export first voltage; Second source is used to export second voltage; First power consumption module; Second power consumption module; And
Energy supply control module, be connected with described first power supply, described second source, described first power consumption module and described second power consumption module respectively, being used at described first power supply and the low power supply of described second source selection voltage is described first power consumption module and/or the power supply of second power consumption module.
2. computing machine according to claim 1 is characterized in that, described energy supply control module comprises:
First switch is connected with described first power supply, and is connected with second power consumption module with described first power consumption module respectively;
Second switch is connected with described second source, and is connected with described second power consumption module with described first power consumption module respectively;
First switch control module is used for connecting described first switch and disconnecting described second switch when described first voltage is lower than described second voltage; Perhaps when described second voltage is lower than described first voltage, connects described second switch and disconnect described first switch.
3. computing machine according to claim 1 is characterized in that, described energy supply control module comprises:
The 3rd switch is connected with described first power supply, and is connected with described second power consumption module;
The 4th switch is connected in series with described the 3rd switch, and is connected with first power consumption module;
The 5th switch is connected with described second source, and is connected with described first power consumption module;
The 6th switch is connected in series with described the 5th switch, and is connected with described second power consumption module;
Detection module is used to detect the power consumption of described first power consumption module or second power consumption module;
The second switch control module, the power consumption that is used for being lower than described second voltage and described second power consumption module at described first voltage is during greater than the power consumption of described first power consumption module, when perhaps the power consumption that is lower than described first voltage and described first power consumption module at described second voltage is greater than the power consumption of described second power consumption module, connect described the 3rd switch and the 5th switch, and disconnect described the 4th switch and the 6th switch.
4. computing machine according to claim 3 is characterized in that, described detection module is specially:
Heat sensor, the heat that produces when being used to detect the operation of described first power consumption module or second power consumption module, and the heat that produces during according to described first power consumption module operation is estimated the power consumption of described first power consumption module or the heat that produces during according to described second power consumption module operation is estimated the power consumption of described second power consumption module; Perhaps
The current sense unit, electric current when being used to detect the operation of described first power consumption module or second power consumption module, and the electric current during according to described first power consumption module operation is estimated the power consumption of described first power consumption module or the electric current during according to described second power consumption module operation is estimated the power consumption of described second power consumption module.
5. according to each described computing machine of claim 1-4, it is characterized in that described first power consumption module is specially: CPU or GPU; Described second power consumption module is specially: input-output apparatus, PCI equipment or internal memory.
6. a computing machine is characterized in that, comprising:
First power supply is used to export first voltage;
Second source is used to export second voltage;
First power consumption module;
Second power consumption module; And
Energy supply control module, be connected with described first power supply, described second source, described first power consumption module and described second power consumption module respectively, being used to control described first power supply is described first power consumption module power supply, and described second source is described second power consumption module power supply.
7. computing machine according to claim 6 is characterized in that, described energy supply control module comprises:
The 3rd switch is connected with described first power supply, and is connected with described second power consumption module;
The 4th switch is connected in series with described the 3rd switch, and is connected with first power consumption module;
The 5th switch is connected with described second source, and is connected with described first power consumption module;
The 6th switch is connected in series with described the 5th switch, and is connected with described second power consumption module;
Detection module is used to detect the power consumption of described first power consumption module or second power consumption module;
The second switch control module, the power consumption that is used for being lower than described second voltage and described second power consumption module at described first voltage is during greater than the power consumption of described first power consumption module, when perhaps the power consumption that is lower than described first voltage and described first power consumption module at described second voltage is greater than the power consumption of described second power consumption module, connect described the 3rd switch and the 5th switch, and disconnect described the 4th switch and the 6th switch.
8. the method for a computer electric power management, described method is applied in the computing machine, and described computing machine has first power supply, second source, first power consumption module and second power consumption module; It is characterized in that this method comprises:
Obtain described first power supply to the input voltage of power consumption module and described second source input voltage to power consumption module;
Selecting the low power supply of voltage in described first power supply and described second source is described first power consumption module and/or the power supply of second power consumption module.
9. method according to claim 8 is characterized in that, selecting the low power supply of voltage in described first power supply and described second source is that the step that described first power consumption module and/or second power consumption module are powered is specially:
When first voltage of described first power supply output is lower than second voltage of described second source output, connect first switch that is connected with described first power supply and is connected with described second power consumption module with described first power consumption module respectively, and disconnection is connected with described second source and the second switch that is connected with described second power consumption module with described first power consumption module respectively; Perhaps
When described second voltage is lower than described first voltage, connects described second switch, and disconnect described first switch.
10. method according to claim 8 is characterized in that, selecting the low power supply of voltage in described first power supply and described second source is that the step that described first power consumption module and/or second power consumption module are powered is specially:
The power consumption that is lower than second voltage of output of described second source and described second power consumption module at first voltage of described first power supply output is during greater than the power consumption of described first power consumption module, when perhaps the power consumption that is lower than described first voltage and described first power consumption module at described second voltage is greater than the power consumption of described second power consumption module, connect described the 3rd switch and the 5th switch, and disconnect described the 4th switch and the 6th switch;
Wherein, described the 3rd switch is connected with described first power supply, and is connected with described second power consumption module; Described the 4th switch is connected with described the 3rd switch serial connection and with described first power consumption module; Described the 5th switch is connected with described second source and is connected with described first power consumption module; Described the 6th switch is connected with described the 5th switch serial connection and with described second power consumption module.
11. the method for a computer electric power management, described method are applied in the computing machine, described computing machine has first power supply, second source, first power consumption module and second power consumption module; It is characterized in that this method comprises:
Obtain first voltage of described first power supply output, second voltage of described second source output;
Satisfy when pre-conditioned at described first voltage and described second voltage, controlling described first power supply is described first power consumption module power supply, and described second source is described second power consumption module power supply.
12. method according to claim 11 is characterized in that, also comprises:
Obtain the power consumption of described first power consumption module and the power consumption of described second power consumption module;
Describedly satisfy when pre-conditioned at described first voltage and described second voltage, controlling described first power supply is described first power consumption module power supply, and described second source is that the step of described second power consumption module power supply is specially:
Be lower than described second voltage at described first voltage, and the power consumption of described second power consumption module is during greater than the power consumption of described first power consumption module, when perhaps the power consumption that is lower than described first voltage and described first power consumption module at described second voltage is greater than the power consumption of described second power consumption module, controlling described first power supply is described first power consumption module power supply, and described second source is described second power consumption module power supply.
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