CN102200825B - 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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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, refer to especially a kind of method, device and computing machine of CPU power supply control.
Background technology
At present in order to reach energy-conservation purpose, 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 under the control of cpu power controller, to be the CPU power supply, also be connected with a current detecting unit for detection of the CPU working current mutually and between CPU in these power supplies, after electric current that current detecting unit detects CPU is less than a certain current threshold, 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 to single phase power supply by heterogeneous power supply, after described current threshold, provide the PSI signal of high level, allow single power supply be phase-changed into two power supply phases or the phase of powering more.Single power supply efficiency that the efficiency of power supply is powered mutually than many power supplies mutually is high, can improve power supplying efficiency like this, can reach energy-conservation purpose;
In the notebook field, this current threshold is 15A, and in the desktop computer field, this current threshold is 20A; When electric current is less, single power supply efficiency that the efficiency of power supply is powered mutually than many power supplies mutually is high, can improve power supplying efficiency like this, can reach energy-conservation purpose.
If CPU continues to work under single 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 excess Temperature of single-phase work due to the PSI function, even jeopardize the reliability of this single phase power supply phase; In prior art, also proposed simultaneously, when the excess Temperature of the power supply phase that CPU detected, CPU can receive signal from cpu controller, makes CPU carry out the frequency reducing use, the temperature of power supply phase that can guarantee like this CPU is unlikely too high, but this is what to sacrifice the performance of CPU be cost.
The inventor, in realizing process of the present invention, finds that in prior art, at least there are the following problems:
In prior art, can't guarantee to continue in the system high temperature environment of single power supply phase time at CPU the CPU high performance operation.
Summary of the invention
The technical problem to be solved in the present invention is to provide 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 means described temperature value higher than described preset temperature threshold value, produce a control signal, described control signal is described CPU power supply at least two power supplies controlling described cpu power controller mutually.
Preferably, said method also comprises: when described comparative result means described temperature value lower than described preset temperature threshold value, if in the first state, controlling described cpu power controller, the PSI signal that described CPU sends keep current in running order list power supply to power for described CPU mutually; If it is described CPU power supply mutually that described PSI signal in the second state, is controlled at least two power supplies of described cpu power controller.
Preferably, in said method, the first state of described PSI signal is: the low level state of the PSI signal of the working current of described CPU during lower than a predetermined current threshold value;
The second state of described PSI signal is: the high level state of the PSI signal of the working current of described CPU during higher than described predetermined current threshold value.
Preferably, the first power supply phase that described current in running order list power supply is the cpu power controller mutually;
When described at least two power supplies are described CPU power supply mutually, described at least two power supplies comprise mutually: described the first power supply mutually and the second power supply of described cpu power controller at least one phase of powering in 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 greater than 1 positive integer.
Preferably, the step of temperature value of obtaining current in running order single power supply phase of cpu power controller is specially:
The temperature detecting module gone up mutually by the current in running order list power supply that is arranged at described cpu power controller, 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, the current in running order list power supply that is placed in described cpu power controller go up mutually, for obtaining the temperature value of current in running order described single phase of powering;
Control module, with described temperature detecting module, be connected, and be connected with CPU, for more described temperature value and preset temperature threshold value, obtain a comparative result, when described comparative result means described temperature value higher than the preset temperature threshold value, produce a control signal, described control signal is described CPU power supply at least two power supplies controlling described cpu power controller mutually.
Preferably, described control module also for: when described comparative result means described temperature value lower than described preset temperature threshold value, if in the first state, controlling described cpu power controller, the PSI signal that described CPU sends keep current in running order list power supply to power for described CPU mutually; If it is described CPU power supply mutually that described PSI signal in the second state, is controlled at least two power supplies of described cpu power controller.
On the one hand, embodiments of the invention also provide a kind of computing machine, comprising again: CPU and the cpu power controller with at least two power supply phases, and described at least two power supplies are connected with described CPU respectively mutually;
The temperature detecting module, the current in running order list power supply that is placed in described cpu power controller go up mutually, for obtaining the temperature value of current in running order described single phase of powering;
Control module, with described temperature detecting module, be connected, and be connected with CPU, for more described temperature value and preset temperature threshold value, obtain a comparative result, when described comparative result means described temperature value higher than the preset temperature threshold value, produce a control signal, described control signal is described CPU power supply at least two power supplies controlling described cpu power controller mutually.
Preferably, described control module also for: when described comparative result means described temperature value lower than described preset temperature threshold value, if in the first state, controlling described cpu power controller, the PSI signal that described CPU sends keep current in running order list power supply to power for described CPU mutually; If it is described CPU power supply mutually that described PSI signal in the second state, is controlled at least two power supplies of described cpu power controller.
Preferably, the first power supply phase that described current in running order list power supply is the cpu power controller mutually; When described at least two power supplies are described CPU power supply mutually, described at least two power supplies comprise mutually: described the first power supply mutually and at least one power supply phase of the 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 greater than 1 positive integer.
Embodiments of the invention have following beneficial effect:
Such scheme is detected by the temperature to current in running order single phase power supply phase, when the temperature value of this power supply phase surpasses the preset temperature threshold value, controlling the cpu power controller powers 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 the system hot environment, also can normally move, met user's demand.
The accompanying drawing explanation
The power control structure figure that Fig. 1 is CPU in prior art;
The method specific embodiment process flow diagram that Fig. 2 is CPU power supply control of the present invention;
The power control structure figure that Fig. 3 is CPU of the present invention;
The specific implementation process flow diagram that Fig. 4 is flow process shown in Fig. 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 for CPU in prior art under single powering mode, continue to use single power supply power supply mutually, cause system high temperature, and in this hot environment, adopt the mode of CPU frequency reducing to reduce the temperature of power supply phase, the problem that the performance of CPU 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;
In this embodiment, by the temperature to current in running order single phase power supply phase, detected, when the temperature value of this power supply phase surpasses the preset temperature threshold value, controlling the cpu power controller by above-mentioned control signal powers 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 is in the system hot environment, also can normally move, meet user's demand.
Certainly, when described comparative result means described temperature value 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 due to the PSI signal, the single power supply phase duty entered; Can certainly be that to make the powering mode of CPU by other control method be single power supply power supply mutually, be that CPU powers as artificial set-up mode makes the list power supply of cpu power controller mutually;
In another embodiment of the present invention, if the power supply control of CPU is under PSI signal controlling mechanism the time, when described comparative result means described temperature value higher than described preset temperature threshold value, also comprise: the step of the PSI signal that shielding CPU sends, the PSI signal that allows CPU transmit is inoperative; Produce a control signal, this control signal is described CPU power supply at least two power supplies controlling described cpu power controller mutually simultaneously.
Certainly, when described comparative result means described temperature value lower than described preset temperature threshold value, also comprise: recover PSI signal controlling mechanism.On the basis of considering the PSI signal, the method also comprises:
Step 25, control described cpu power controller and keep current in running order list power supply to power for described CPU mutually;
Wherein, the first state of described PSI signal is: the low level state of the PSI signal of the working current of described CPU during lower than a predetermined current threshold value;
The second state of described PSI signal is: the high level state of the PSI signal of the working current of described CPU during higher than described predetermined current threshold value; When the PSI signal during in high level state, the working current that current C PU is described has surpassed the predetermined current threshold value, now single phase power supply is changed into to heterogeneous power supply, can guarantee the normal operation under the high power consumption of CPU, be unlikely single power supply is the CPU continued power of high power consumption simultaneously mutually, causes the excess Temperature of this list power supply phase.
Preferably, the first power supply phase that described current in running order list power supply is the cpu power controller mutually;
When described at least two power supplies are described CPU power supply mutually, described at least two power supplies comprise mutually: described the first power supply mutually and the second power supply of described cpu power controller at least one phase of powering in 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 greater than 1 positive integer.
In addition, in said method, step 21 can be specially:
The temperature detecting module gone 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.
Below, again in conjunction with Fig. 3 and Fig. 4, illustrate the specific implementation flow process of said method:
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, well below the 1st power supply phase, is arranged at this temperature detecting module the 1st power supply and go up mutually, can determine exactly the current the in running order the 1st temperature of powering phase;
Control module is obtained the temperature of the 1st power supply phase detected from the temperature detecting module, and detecting is from the PSI signal of CPU, when the current detecting unit be connected with CPU is less than a rated current threshold value at the working current of CPU, can send this low level PSI signal, allow cpu controller use single power supply mutually for the CPU power supply, can play energy-conservation effect like this;
In 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 be 100 degree, if surpass this preset temperature threshold value, produce a control signal to 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, can certainly surpass according to this temperature value the situation of this preset temperature threshold value, control the 1st power supply phase, the 2nd power supply phase, the 3rd power supply phase ... the N power supply is worked mutually, allowing the cpu power controller force power supply to enter many power supplies works mutually, the problem of this power supply phase excess Temperature of avoiding only having a power supply to work mutually and causing, thereby guarantee the reliability of power supply phase device,
If this current the 1st in running order temperature value of powering phase does not surpass this preset temperature threshold value, judge again the state of the PSI signal of coming from CPU, if this PSI signal is in the first state (being the low level state of PSI signal), keep current power supply state, keep the duty of only having the 1st power supply to power for CPU mutually; If this PSI signal is in the 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 while making more power supply identical, is the CPU power supply, in the situation that guarantee that the temperature of each power supply phase is unlikely to too high, 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 (working current that current detecting unit detects CPU has in other words surpassed designated value) of regulation as the load that can refer to CPU.
In sum, embodiments of the invention are by detecting the temperature value of current single power supply phase for the CPU power supply, if temperature value surpasses the preset temperature threshold values, for example 100 spend, 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, when the load of CPU is just identical by a plurality of power supplies, share, effectively reduce power supply phase device temperature, realized again the running of CPU high-performance simultaneously.
Embodiments of the invention also provide a kind of device of CPU power supply control, comprising:
The cpu power controller, have at least two power supply phases;
The temperature detecting module, the current in running order list power supply that is placed in described cpu power controller go up mutually, for obtaining the temperature value of described current in running order single phase of powering;
Control module, with described temperature detecting module, be connected, and be connected with CPU, for more described temperature value and preset temperature threshold value, obtain a comparative result, when described comparative result means described temperature value higher than the preset temperature threshold value, produce a control signal, described control signal is described CPU power supply at least two power supplies controlling described cpu power controller mutually.
Specifically, described control module also for: when described comparative result means described temperature value lower than described preset temperature threshold value, if in the first state, controlling described cpu power controller, the PSI signal that described CPU sends keep current in running order list power supply to power for described CPU mutually; If it is described CPU power supply mutually that described PSI signal in the second state, is controlled at least two power supplies of described cpu power controller; 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.
It should be noted that: the embodiment shown in above-mentioned Fig. 3 and Fig. 4 is equally applicable to this device embodiment, same by detecting the temperature of current single power supply phase for the CPU power supply, if temperature value surpasses the temperature threshold values of setting, 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, when the load of CPU is just identical by a plurality of power supplies, share, effectively reduce power supply phase device temperature, realized again the running of CPU high-performance simultaneously.
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, the current in running order list power supply that is placed in described cpu power controller go up mutually, for obtaining the temperature value of described current in running order single phase of powering;
Control module, with described temperature detecting module, be connected, and be connected with CPU, for more described temperature value and preset temperature threshold value, obtain a comparative result, when described comparative result means described temperature value higher than the preset temperature threshold value, produce a control signal, described control signal is described CPU power supply at least two power supplies controlling described cpu power controller mutually.
In addition, described control module also for: when described comparative result means described temperature value lower than described preset temperature threshold value, if in the first state, controlling described cpu power controller, the PSI signal that described CPU sends keep current in running order list power supply to power for described CPU mutually; If it is described CPU power supply mutually that described PSI signal in the second state, is controlled at least two power supplies of described cpu power controller; 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, the first power supply phase that described current in running order list power supply is the cpu power controller mutually;
When described at least two power supplies are described CPU power supply mutually, described at least two power supplies comprise mutually: described the first power supply mutually and the second power supply of described cpu power controller at least one phase of powering in 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 greater than 1 positive integer.
It should be noted that: the embodiment shown in above-mentioned Fig. 3 and Fig. 4 is equally applicable to this computer-implemented example, same by detecting the temperature of current single power supply phase for the CPU power supply, if temperature value surpasses the preset temperature threshold values, 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, when the load of CPU is just identical by a plurality of power supplies, share, effectively reduce power supply phase device temperature, realized again the running of CPU high-performance simultaneously.
The above is the preferred embodiment of the present invention; it 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 (7)
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 means described temperature value higher than described preset temperature threshold value, produce a control signal, described control signal is described CPU power supply at least two power supplies controlling described cpu power controller mutually;
When described comparative result means described temperature value lower than described preset temperature threshold value, if in the first state, controlling described cpu power controller, the PSI signal that described CPU sends keep current in running order list power supply to power for described CPU mutually; If it is described CPU power supply mutually that described PSI signal in the second state, is controlled at least two power supplies of described cpu power controller.
2. method according to claim 1, is characterized in that,
The first state of described PSI signal is: the low level state of the PSI signal of the working current of described CPU during lower than a predetermined current threshold value;
The second state of described PSI signal is: the high level state of the PSI signal of the working current of described CPU during higher than described predetermined current threshold value.
3. method according to claim 1 and 2, 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 are described CPU power supply mutually, described at least two power supplies comprise mutually: described the first power supply mutually and the second power supply of described cpu power controller at least one phase of powering in 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 greater than 1 positive integer.
4. 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:
The temperature detecting module gone up mutually by the current in running order list power supply that is arranged at described cpu power controller, obtain the temperature value of described current in running order single power supply phase.
5. the device of a CPU power supply control, comprising: the cpu power controller with at least two power supply phases; It is characterized in that, also comprise:
The temperature detecting module, the current in running order list power supply that is placed in described cpu power controller go up mutually, for obtaining the temperature value of current in running order described single phase of powering;
Control module, with described temperature detecting module, be connected, and be connected with CPU, for more described temperature value and preset temperature threshold value, obtain a comparative result, when described comparative result means described temperature value higher than the preset temperature threshold value, produce a control signal, described control signal is described CPU power supply at least two power supplies controlling described cpu power controller mutually; When described comparative result means described temperature value lower than described preset temperature threshold value, if in the first state, controlling described cpu power controller, the PSI signal that described CPU sends keep current in running order list power supply to power for described CPU mutually; If it is described CPU power supply mutually that described PSI signal in the second state, is controlled at least two power supplies of described cpu power controller.
6. a computing machine comprises: CPU and the cpu power controller with at least two power supply phases, and described at least two power supplies are connected with described CPU respectively mutually; It is characterized in that, also comprise:
The temperature detecting module, the current in running order list power supply that is placed in described cpu power controller go up mutually, for obtaining the temperature value of current in running order described single phase of powering;
Control module, with described temperature detecting module, be connected, and be connected with CPU, for more described temperature value and preset temperature threshold value, obtain a comparative result, when described comparative result means described temperature value higher than the preset temperature threshold value, produce a control signal, described control signal is described CPU power supply at least two power supplies controlling described cpu power controller mutually; When described comparative result means described temperature value lower than described preset temperature threshold value, if in the first state, controlling described cpu power controller, the PSI signal that described CPU sends keep current in running order list power supply to power for described CPU mutually; If it is described CPU power supply mutually that described PSI signal in the second state, is controlled at least two power supplies of described cpu power controller.
7. computing machine according to claim 6, 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 are described CPU power supply mutually, described at least two power supplies comprise mutually: described the first power supply mutually and at least one power supply phase of the 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 greater than 1 positive integer.
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| CN106602670B (en) * | 2017-01-24 | 2019-04-23 | 成都芯源系统有限公司 | Electronic equipment, power supply and control method of power supply |
| TWI684854B (en) * | 2018-09-07 | 2020-02-11 | 華碩電腦股份有限公司 | Temperature control system for central processing unit and temperature control method thereof |
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