CN102200825A - CPU power supply control method and device, and computer - Google Patents
CPU power supply control method and device, and computer Download PDFInfo
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- CN102200825A CN102200825A CN2010101312394A CN201010131239A CN102200825A CN 102200825 A CN102200825 A CN 102200825A CN 2010101312394 A CN2010101312394 A CN 2010101312394A CN 201010131239 A CN201010131239 A CN 201010131239A CN 102200825 A CN102200825 A CN 102200825A
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Abstract
The invention provides a CPU power supply control method and device, and a computer. The method comprises the following steps of: acquiring a temperature valve of single power supply phase of the CPU power supply controller in the current working state; comparing the temperature value with a preset temperature threshold valve to obtain a comparison result; and when the comparison result indicates the temperature value is greater than the preset temperature threshold value, generating a control signal, wherein the control signal is used for controlling at least two power supply phases of the CPU power supply controller to supply power to the CPU. The technical of the invention ensures that the CPU normally operates in the system high-temperature environment, thus needs of user can be met.
Description
Technical field
The present invention relates to computer realm, be meant a kind of method, device and computing machine of CPU power supply control especially.
Background technology
At present in order to reach purpose of energy saving, as shown in Figure 1, CPU (central processing unit) economize on electricity control flow chart comprises: cpu power controller and CPU, wherein, the cpu power controller has at least two power supply phases, the effect of these power supply phases is to be the CPU power supply under the control of cpu power controller, in these power supplies mutually and also be connected with a current detecting unit that is used to detect the CPU working current between the CPU, the electric current that detects CPU when current detecting unit less than a certain current threshold after, can provide a low level PSI (Power saving interface, battery saving mode) signal is given the power-supply controller of electric for the CPU power supply, force the cpu power controller that its power supply is entered single phase power supply by heterogeneous power supply, after being higher than described current threshold, provide the PSI signal of high level, allow single power supply be phase-changed into the two power supply phase or the phases of powering more.Single power supply is the efficiency ratio efficient height of power supply mutually of powering of power supply mutually more, can improve power supplying efficiency like this, can reach purpose of energy saving;
In the notebook field, this current threshold is 15A, and in the desktop computer field, this current threshold is 20A; When electric current was less, single power supply is the efficiency ratio efficient height of power supply mutually of powering of power supply mutually more, can improve power supplying efficiency like this, can reach purpose of energy saving.
If CPU continues to work under list power supply facies model, all loads of CPU are all gone up mutually in this single power supply, in this case, can cause this power supply phase temperature of single-phase work too high owing to the PSI function, even jeopardize the reliability of this single phase power supply phase; Also proposed in the prior art simultaneously, when the temperature of the power supply phase that detects CPU was too high, CPU can make CPU carry out frequency reducing and use from the cpu controller received signal, the temperature of power supply phase that can guarantee CPU like this is unlikely too high, but this is to be cost with the performance of sacrificing CPU.
The inventor finds that there are the following problems at least in the prior art in realizing process of the present invention:
In the prior art, can't guarantee to continue in system's high temperature environment of single power supply phase time the CPU high performance operation at CPU.
Summary of the invention
The technical problem to be solved in the present invention provides method, device and the computing machine of the CPU power supply control that a kind of CPU of making can high performance operation.
For solving the problems of the technologies described above, embodiments of the invention provide technical scheme as follows:
On the one hand, provide a kind of method of CPU power supply control, comprising:
Obtain the temperature value of current in running order single power supply phase of cpu power controller;
More described temperature value and preset temperature threshold value obtain a comparative result;
When described comparative result represents that described temperature value is higher than described preset temperature threshold value, produce a control signal, at least two power supplies that described control signal is used to control described cpu power controller are described CPU power supply mutually.
Preferably, said method also comprises: when described comparative result represents that described temperature value is lower than described preset temperature threshold value, if the PSI signal that described CPU sends is in first state, then controls described cpu power controller and keep current in running order list power supply to be described CPU power supply mutually; If described PSI signal is in second state, at least two power supplies then controlling described cpu power controller are described CPU power supply mutually.
Preferably, in the said method, first state of described PSI signal is: the low level state of the PSI signal the when working current of described CPU is lower than a predetermined current threshold value;
Second state of described PSI signal is: the high level state of the PSI signal the when working current of described CPU is higher than described predetermined current threshold value.
Preferably, described current in running order list power supply be first of the cpu power controller phase of powering mutually;
When described at least two power supplies were described CPU power supply mutually, described at least two power supplies comprised mutually: described first power supply mutually and second power supply of described cpu power controller at least one phase of powering in the N power supply mutually; Wherein, the temperature of N power supply phase is lower than the temperature of N-1 power supply phase, and N is the positive integer greater than 1.
Preferably stroke, the step of temperature value of obtaining current in running order single power supply phase of cpu power controller is specially:
By the temperature detecting module that the current in running order list power supply that is arranged at described cpu power controller is gone up mutually, obtain the temperature value of described current in running order single power supply phase.
On the other hand, embodiments of the invention also provide a kind of device of CPU power supply control, comprising: the cpu power controller with at least two power supply phases;
The temperature detecting module places the current in running order list power supply of described cpu power controller to go up mutually, is used to obtain the temperature value of current in running order described single power supply phase;
Control module, be connected with described temperature detecting module, and be connected with CPU, be used for more described temperature value and preset temperature threshold value, obtain a comparative result, when described comparative result represents that described temperature value is higher than the preset temperature threshold value, produce a control signal, at least two power supplies that described control signal is used to control described cpu power controller are described CPU power supply mutually.
Preferably, described control module also is used for: when described comparative result represents that described temperature value is lower than described preset temperature threshold value, if the PSI signal that described CPU sends is in first state, then controls described cpu power controller and keep current in running order list power supply to be described CPU power supply mutually; If described PSI signal is in second state, at least two power supplies then controlling described cpu power controller are described CPU power supply mutually.
Again on the one hand, embodiments of the invention also provide a kind of computing machine, comprising: CPU and have at least two cpu power controllers of powering mutually, and described at least two power supplies are connected with described CPU respectively mutually;
The temperature detecting module places the current in running order list power supply of described cpu power controller to go up mutually, is used to obtain the temperature value of current in running order described single power supply phase;
Control module, be connected with described temperature detecting module, and be connected with CPU, be used for more described temperature value and preset temperature threshold value, obtain a comparative result, when described comparative result represents that described temperature value is higher than the preset temperature threshold value, produce a control signal, at least two power supplies that described control signal is used to control described cpu power controller are described CPU power supply mutually.
Preferably, described control module also is used for: when described comparative result represents that described temperature value is lower than described preset temperature threshold value, if the PSI signal that described CPU sends is in first state, then controls described cpu power controller and keep current in running order list power supply to be described CPU power supply mutually; If described PSI signal is in second state, at least two power supplies then controlling described cpu power controller are described CPU power supply mutually.
Preferably, described current in running order list power supply be first of the cpu power controller phase of powering mutually; When described at least two power supplies were described CPU power supply mutually, described at least two power supplies comprised mutually: described first power supply mutually and at least one power supply phase of second power supply of described cpu power controller in powering mutually to N; Wherein, the temperature of N power supply phase is lower than the temperature of N-1 power supply phase, and N is the positive integer greater than 1.
Embodiments of the invention have following beneficial effect:
Such scheme is by detecting the temperature of current in running order single phase power supply phase, when the temperature value of this power supply phase surpasses the preset temperature threshold value, control cpu power controller is powered original single phase power supply mutually, change many power supplies power supply mutually into, so just do not need CPU to reduce the temperature of power supply phase by the mode of frequency reducing, guaranteed that CPU in system's hot environment, also can normally move, satisfied user's demand.
Description of drawings
Fig. 1 is the power supply control structure figure of CPU in the prior art;
Fig. 2 is the method specific embodiment process flow diagram of CPU power supply control of the present invention;
Fig. 3 is the power supply control structure figure of CPU of the present invention;
Fig. 4 is a specific implementation process flow diagram of flow process shown in Figure 2.
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 at CPU in the prior art under single powering mode, continue to use single power supply power supply mutually, cause system's high temperature, and in this hot environment, adopt the mode of CPU frequency reducing to reduce the temperature of power supply phase, the performance of the CPU problem that can incur loss like this, provide a kind of can high temperature environment in, CPU can high performance operation, can guarantee method, device and the computing machine of energy-conservation CPU power supply control in low-temperature environment.
As shown in Figure 2, embodiments of the invention provide a kind of method of CPU power supply control, comprising:
Step 21, the temperature value of current in running order single power supply phase of acquisition cpu power controller;
Step 22, more described temperature value and preset temperature threshold value obtain a comparative result;
Step 23 when described comparative result represents that described temperature value is higher than described preset temperature threshold value, produces a control signal, and at least two power supplies that described control signal is used to control described cpu power controller are described CPU power supply mutually.
Among this embodiment, by the temperature of current in running order single phase power supply phase is detected, when the temperature value of this power supply phase surpasses the preset temperature threshold value, with above-mentioned control signal control cpu power controller original single phase power supply is powered mutually, changing many power supplies power supply mutually into, so just not needing CPU to reduce the temperature of the phase of powering, having guaranteed that CPU is in system's hot environment by the mode of frequency reducing, also can normally move, satisfy user's demand.
Certainly, when described comparative result represents that described temperature value is lower than described preset temperature threshold value, also comprise: a power supply controlling described cpu power controller is described CPU power supply mutually.
In the above-described embodiments, the state that the current list power supply of CPU is powered mutually can be the effect owing to the PSI signal, the single power supply phase duty that enters; Can certainly be that to make the powering mode of CPU by other control method be single power supply power supply mutually, making the list power supply of cpu power controller as artificial set-up mode be that CPU powers mutually;
In another embodiment of the present invention, if the power supply of CPU control is in PSI signal controlling mechanism following time, when described comparative result represents that described temperature value is higher than described preset temperature threshold value, also comprise: the step of the PSI signal that shielding CPU sends, the PSI signal that promptly allows CPU transmit is inoperative; Produce a control signal simultaneously, at least two power supplies that this control signal is used to control described cpu power controller are described CPU power supply mutually.
Certainly, when described comparative result represents that described temperature value is lower than described preset temperature threshold value, also comprise: recover PSI signal controlling mechanism.On the basis of considering the PSI signal, this method also comprises:
Step 24 when described comparative result represents that described temperature value is lower than described preset temperature threshold value, if the PSI signal that described CPU sends is in first state, then enters step 25, if this PSI signal is in second state, then enters step 26;
Step 25 is controlled described cpu power controller and is kept current in running order list power supply to be described CPU power supply mutually;
Step 26, at least two power supplies controlling described cpu power controller are described CPU power supply mutually.
Wherein, first state of described PSI signal is: the low level state of the PSI signal the when working current of described CPU is lower than a predetermined current threshold value;
Second state of described PSI signal is: the high level state of the PSI signal the when working current of described CPU is higher than described predetermined current threshold value; When the PSI signal is in high level state, the working current that current C PU is described has surpassed the predetermined current threshold value, change single phase power supply into heterogeneous power supply this moment, can guarantee the normal operation under the high power consumption of CPU, be unlikely single power supply simultaneously and be the CPU continued power of high power consumption mutually, cause the temperature of this list power supply phase too high.
Preferably, described current in running order list power supply be first of the cpu power controller phase of powering mutually;
When described at least two power supplies were described CPU power supply mutually, described at least two power supplies comprised mutually: described first power supply mutually and second power supply of described cpu power controller at least one phase of powering in the N power supply mutually; Wherein, the temperature of N power supply phase is lower than the temperature of N-1 power supply phase, and N is the positive integer greater than 1.
In addition, in the said method, step 21 can be specially:
The temperature detecting module that goes up mutually by the current in running order list power supply that is arranged at described CPU obtains the temperature value of current in running order single power supply phase of described cpu power controller.
Again in conjunction with Fig. 3 and Fig. 4, specify the specific implementation flow process of said method below:
As shown in Figure 3, one temperature detecting module is arranged at groundwork power supply phase the 1st power supply of described CPU and goes up mutually, and constantly detect the temperature of the 1st power supply phase, generally, under the low current working condition, therefore the temperature of the 2nd power supply phase is arranged at this temperature detecting module the 1st power supply and goes up mutually well below the 1st power supply phase, can determine the current the in running order the 1st temperature of powering phase exactly;
Control module is obtained the temperature of the 1st power supply phase that detects from the temperature detecting module, and detecting is from the PSI signal of CPU, the current detecting unit that is connected with CPU is at the working current of CPU during less than a rated current threshold value, can send this low level PSI signal, allow cpu controller use single power supply, can play energy-conservation effect so mutually for the CPU power supply;
In the embodiments of the invention, control module is according to the temperature value of the 1st power supply phase, judge whether this temperature value surpasses the preset temperature threshold value, this preset temperature threshold value is as being 100 degree, if surpass this preset temperature threshold value, then produce a control signal and give the cpu power controller, allow the cpu power controller shield this control module transmission PSI signal in the past, controlling the 1st power supply of power-supply controller of electric of this CPU is that CPU powers when mutually identical with the 2nd power supply, the situation that can certainly surpass this preset temperature threshold value according to this temperature value, control the 1st power supply phase, the 2nd power supply phase, the 3rd power supply phase ... the N power supply is worked mutually, promptly allows the cpu power controller force power supply to enter many power supplies and works mutually, the too high problem of this power supply phase temperature of avoiding having only a power supply to work mutually and causing, thus the reliability of power supply phase device guaranteed;
If this current the 1st in running order temperature value of powering phase does not surpass this preset temperature threshold value, judge the state of the PSI signal of coming from CPU again, if this PSI signal is in first state (being the low level state of PSI signal), then keep current power supply state, promptly keep the duty of having only the 1st power supply to power for CPU mutually; If this PSI signal is in second state (being the high level state of PSI signal), many power supplies phase mode of operation that same control cpu power controller enters power supply, it when making more power supply identical the CPU power supply, under the temperature that guarantees each power supply phase is unlikely to too high situation, do not need frequency reducing under the CPU high load condition yet, can guarantee the normal operation of CPU; Wherein, the PSI signal high level state has here surpassed the designated value (the current detecting unit working current that detects CPU has surpassed designated value in other words) of regulation as the load that can be meant CPU.
In sum, embodiments of the invention are by detecting the temperature value of current single phase of powering for the CPU power supply, if temperature value surpasses the preset temperature threshold values, for example 100 spend, then make the PSI signal of CPU inoperative, the controller of cpu power makes the PSI invalidating signal, forces to enter the work of many power supply facies models.Like this, the load of CPU is just shared when identical by a plurality of power supplies, has effectively reduced power supply phase device temperature, has realized the running of CPU high-performance simultaneously again.
Embodiments of the invention also provide a kind of device of CPU power supply control, comprising:
The cpu power controller has at least two power supply phases;
The temperature detecting module places the current in running order list power supply of described cpu power controller to go up mutually, is used to obtain the temperature value of described current in running order single power supply phase;
Control module, be connected with described temperature detecting module, and be connected with CPU, be used for more described temperature value and preset temperature threshold value, obtain a comparative result, when described comparative result represents that described temperature value is higher than the preset temperature threshold value, produce a control signal, at least two power supplies that described control signal is used to control described cpu power controller are described CPU power supply mutually.
Specifically, described control module also is used for: when described comparative result represents that described temperature value is lower than described preset temperature threshold value, if the PSI signal that described CPU sends is in first state, then controls described cpu power controller and keep current in running order list power supply to be described CPU power supply mutually; If described PSI signal is in second state, at least two power supplies then controlling described cpu power controller are described CPU power supply mutually; Wherein, this first state can refer to the low level state of PSI signal, and this second state can refer to the high level state of PSI signal.
Need to prove: above-mentioned Fig. 3 and embodiment shown in Figure 4 are equally applicable to this device embodiment, same by detecting the temperature of current single phase of powering for the CPU power supply, if temperature value surpasses the temperature threshold values of setting, then make the PSI signal of CPU inoperative, the cpu power controller is ignored the PSI signal, forces to enter the work of many power supply facies models.Like this, the load of CPU is just shared when identical by a plurality of power supplies, has effectively reduced power supply phase device temperature, has realized the running of CPU high-performance simultaneously again.
In addition, another embodiment of the present invention also provides a kind of computing machine, comprising: CPU; Cpu power controller with at least two power supply phases; Described at least two power supplies are connected with described CPU respectively mutually;
The temperature detecting module places the current in running order list power supply of described cpu power controller to go up mutually, is used to obtain the temperature value of described current in running order single power supply phase;
Control module, be connected with described temperature detecting module, and be connected with CPU, be used for more described temperature value and preset temperature threshold value, obtain a comparative result, when described comparative result represents that described temperature value is higher than the preset temperature threshold value, produce a control signal, at least two power supplies that described control signal is used to control described cpu power controller are described CPU power supply mutually.
In addition, described control module also is used for: when described comparative result represents that described temperature value is lower than described preset temperature threshold value, if the PSI signal that described CPU sends is in first state, then controls described cpu power controller and keep current in running order list power supply to be described CPU power supply mutually; If described PSI signal is in second state, at least two power supplies then controlling described cpu power controller are described CPU power supply mutually; Wherein, this first state can refer to the low level state of PSI signal, and this second state can refer to the high level state of PSI signal.
Wherein, described current in running order list power supply be first of the cpu power controller phase of powering mutually;
When described at least two power supplies were described CPU power supply mutually, described at least two power supplies comprised mutually: described first power supply mutually and second power supply of described cpu power controller at least one phase of powering in the N power supply mutually; Wherein, the temperature of N power supply phase is lower than the temperature of N-1 power supply phase, and N is the positive integer greater than 1.
Need to prove: above-mentioned Fig. 3 and embodiment shown in Figure 4 are equally applicable to this computer-implemented example, same by detecting the temperature of current single phase of powering for the CPU power supply, if temperature value surpasses the preset temperature threshold values, then make the PSI signal of CPU inoperative, the controller of cpu power is ignored the PSI signal, forces to enter the work of many power supply facies models.Like this, the load of CPU is just shared when identical by a plurality of power supplies, has effectively reduced power supply phase device temperature, has realized the running of CPU high-performance simultaneously again.
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 (10)
1. the method for a CPU power supply control is characterized in that, comprising:
Obtain the temperature value of current in running order single power supply phase of cpu power controller;
More described temperature value and preset temperature threshold value obtain a comparative result;
When described comparative result represents that described temperature value is higher than described preset temperature threshold value, produce a control signal, at least two power supplies that described control signal is used to control described cpu power controller are described CPU power supply mutually.
2. method according to claim 1 is characterized in that, also comprises:
When described comparative result represents that described temperature value is lower than described preset temperature threshold value,, then control described cpu power controller and keep current in running order list power supply to power for described CPU mutually if the PSI signal that described CPU sends is in first state; If described PSI signal is in second state, at least two power supplies then controlling described cpu power controller are described CPU power supply mutually.
3. method according to claim 2 is characterized in that,
First state of described PSI signal is: the low level state of the PSI signal the when working current of described CPU is lower than a predetermined current threshold value;
Second state of described PSI signal is: the high level state of the PSI signal the when working current of described CPU is higher than described predetermined current threshold value.
4. according to claim 1,2 or 3 described methods, it is characterized in that,
Described current in running order list power supply is the first power supply phase of cpu power controller mutually;
When described at least two power supplies were described CPU power supply mutually, described at least two power supplies comprised mutually: described first power supply mutually and second power supply of described cpu power controller at least one phase of powering in the N power supply mutually; Wherein, the temperature of N power supply phase is lower than the temperature of N-1 power supply phase, and N is the positive integer greater than 1.
5. method according to claim 1 is characterized in that, the step of the temperature value of current in running order single power supply phase of acquisition cpu power controller is specially:
By the temperature detecting module that the current in running order list power supply that is arranged at described cpu power controller is gone up mutually, obtain the temperature value of described current in running order single power supply phase.
6. the device of a CPU power supply control comprises: the cpu power controller with at least two power supply phases; It is characterized in that, also comprise:
The temperature detecting module places the current in running order list power supply of described cpu power controller to go up mutually, is used to obtain the temperature value of current in running order described single power supply phase;
Control module, be connected with described temperature detecting module, and be connected with CPU, be used for more described temperature value and preset temperature threshold value, obtain a comparative result, when described comparative result represents that described temperature value is higher than the preset temperature threshold value, produce a control signal, at least two power supplies that described control signal is used to control described cpu power controller are described CPU power supply mutually.
7. device according to claim 6, it is characterized in that, described control module also is used for: when described comparative result represents that described temperature value is lower than described preset temperature threshold value, if the PSI signal that described CPU sends is in first state, then controls described cpu power controller and keep current in running order list power supply to be described CPU power supply mutually; If described PSI signal is in second state, at least two power supplies then controlling described cpu power controller are described CPU power supply mutually.
8. computing machine comprises: CPU with have at least two power supplies cpu power controllers mutually, described at least two power supplies are connected with described CPU respectively mutually; It is characterized in that, also comprise:
The temperature detecting module places the current in running order list power supply of described cpu power controller to go up mutually, is used to obtain the temperature value of current in running order described single power supply phase;
Control module, be connected with described temperature detecting module, and be connected with CPU, be used for more described temperature value and preset temperature threshold value, obtain a comparative result, when described comparative result represents that described temperature value is higher than the preset temperature threshold value, produce a control signal, at least two power supplies that described control signal is used to control described cpu power controller are described CPU power supply mutually.
9. computing machine according to claim 8, it is characterized in that, described control module also is used for: when described comparative result represents that described temperature value is lower than described preset temperature threshold value, if the PSI signal that described CPU sends is in first state, then controls described cpu power controller and keep current in running order list power supply to be described CPU power supply mutually; If described PSI signal is in second state, at least two power supplies then controlling described cpu power controller are described CPU power supply mutually.
10. according to Claim 8 or 9 described computing machines, it is characterized in that,
Described current in running order list power supply is the first power supply phase of cpu power controller mutually;
When described at least two power supplies were described CPU power supply mutually, described at least two power supplies comprised mutually: described first power supply mutually and at least one power supply phase of second power supply of described cpu power controller in powering mutually to N; Wherein, the temperature of N power supply phase is lower than the temperature of N-1 power supply phase, and N is the positive integer greater than 1.
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