Control method, device and electronic equipment

Abstract

The present application discloses a control method, device and electronic device, the method comprising: obtaining current operation information of the electronic device; when the current operation information meets a first control condition, controlling the change amplitude of the power supply output voltage signal to meet a second control condition; wherein the current operation information meets the first control condition so that the electronic device powered by the power supply generates a first noise, and the change amplitude of the power supply output voltage signal meets the second control condition so that the electronic device powered by the power supply generates a second noise; the first noise is greater than the second noise; wherein a first component exists in the electronic device powered by the power supply, and the first component is excited by the voltage change of the power supply to generate the noise.

Description

Technical Field

[0001] The present application relates to the field of computer technology, and in particular to a control method, device and electronic equipment. Background Art

[0002] Because the piezoelectric effect of ceramic capacitors will cause obvious vibration noise when using the notebook, affecting the user experience. Summary of the invention

[0003] In view of this, the present application provides a control method, device and electronic device as follows:

[0004] A control method, comprising:

[0005] Obtain current operating information of electronic equipment;

[0006] When the current operation information meets the first control condition, controlling the change amplitude of the power supply output voltage signal to meet the second control condition;

[0007] The current operation information meets the first control condition so that the electronic device powered by the power supply generates a first noise, and the change amplitude of the power supply output voltage signal meets the second control condition so that the electronic device powered by the power supply generates a second noise;

[0008] The first noise is greater than the second noise;

[0009] There is a first component in the electronic device powered by the power supply, and the first component is stimulated by the voltage change of the power supply to generate the noise.

[0010] In the above method, preferably, the electronic device further comprises a second component, the second component is a component having a computing function, the power supply outputs a voltage signal to the second component, the required voltage of the second component has at least a first voltage range and a second voltage range, and the voltage variation amplitude of the first voltage range is smaller than the voltage variation amplitude of the second voltage range;

[0011] The step of controlling the variation amplitude of the power supply output voltage signal to meet a second control condition includes:

[0012] The power supply is controlled to output a voltage signal to the second component with a voltage variation amplitude corresponding to the first voltage range.

[0013] The above method preferably further comprises:

[0014] When the current operation information does not meet the first control condition, the power supply is controlled to output a voltage signal to the second component with a voltage change amplitude corresponding to the second voltage range.

[0015] In the above method, preferably, when the current operation information meets the first control condition, the method further includes:

[0016] Delaying a first time length, executing the steps of: controlling the power supply to output a voltage signal to the second component with a voltage variation amplitude corresponding to the first voltage range;

[0017] Wherein, when the current operation information does not meet the first control condition, the method further includes:

[0018] Delay for a second time period and execute the step of controlling the power supply to output a voltage signal to the second component with a voltage variation amplitude corresponding to the second voltage range.

[0019] In the above method, preferably, after controlling the power supply to output a voltage signal to the second component with a voltage variation amplitude corresponding to the second voltage range, the method further comprises:

[0020] updating the wake-up parameter of the second component from the first parameter value to the second parameter value, so that the second component triggers the power supply to output a voltage signal to the second component at a voltage variation amplitude corresponding to the second voltage range at a wake-up frequency corresponding to the second parameter value;

[0021] The second component triggers the power supply to output a voltage signal to the second component at a voltage change amplitude corresponding to the second voltage range at a wake-up frequency corresponding to the first parameter value to generate a third noise, and the second component triggers the power supply to output a voltage signal to the second component at a voltage change amplitude corresponding to the second voltage range at a wake-up frequency corresponding to the second parameter value to generate a fourth noise;

[0022] The third noise is greater than the fourth noise.

[0023] In the above method, preferably, the electronic device further comprises a fourth component, the fourth component is connected between the second component and other components, the power supply outputs a voltage signal to the fourth component, the required voltage of the fourth component has at least a first voltage limit and a second voltage limit, and the first voltage limit is less than the second voltage limit;

[0024] After controlling the power supply to output a voltage signal to the second component with a voltage variation amplitude corresponding to the first voltage range, the method further includes:

[0025] Controlling the power supply to output a voltage signal to the fourth component with a voltage variation amplitude corresponding to the first voltage limit;

[0026] The power supply outputs a voltage signal to the fourth component with a voltage variation amplitude corresponding to the first voltage limit to generate fifth noise, and the power supply outputs a voltage signal to the fourth component with a voltage variation amplitude corresponding to the second voltage limit to generate sixth noise;

[0027] The fifth noise is smaller than the sixth noise.

[0028] The above method, preferably, obtains the current operation information of the electronic device, including:

[0029] Monitoring a third component in the electronic device to obtain current operation information of the electronic device; the current operation information represents an operation state of the third component;

[0030] or,

[0031] A second component in the electronic device is monitored to obtain a current operating state of the electronic device, wherein the current operating information represents a load state of the second component.

[0032] In the above method, preferably, the current operation information meets the first control condition, including:

[0033] The current operation information indicates that: the third component switches from a first operation state to a second operation state; wherein the power consumption of the third component in the first operation state is less than the power consumption of the third component in the second operation state;

[0034] or;

[0035] The current operation information indicates that: the second component switches from a first load state to a second load state; wherein the power consumption of the second component in the first load state is greater than the power consumption of the second component in the second load state.

[0036] A control device, comprising:

[0037] An operation obtaining unit, used to obtain current operation information of the electronic device;

[0038] A power control unit, configured to control the change amplitude of the power output voltage signal to meet a second control condition when the current operation information meets the first control condition;

[0039] The current operation information meets the first control condition so that the electronic device powered by the power supply generates a first noise, and the change amplitude of the power supply output voltage signal meets the second control condition so that the electronic device powered by the power supply generates a second noise;

[0040] The first noise is greater than the second noise;

[0041] There is a first component in the electronic device powered by the power supply, and the first component is stimulated by the voltage change of the power supply to generate the noise.

[0042] An electronic device, comprising:

[0043] power supply;

[0044] A first component, which is excited by the voltage variation of the power supply to generate noise;

[0045] The processor is used to execute the application program to achieve the following functions: obtaining current operation information of the electronic device; when the current operation information meets the first control condition, controlling the change amplitude of the power supply output voltage signal to meet the second control condition;

[0046] The current operation information meets the first control condition so that the electronic device generates a first noise, and the change amplitude of the power supply output voltage signal meets the second control condition so that the electronic device generates a second noise;

[0047] The first noise is greater than the second noise.

[0048] It can be seen from the above scheme that in a control method, device and electronic device provided by the present application, by obtaining the current operation information of the electronic device, the change amplitude of the power supply output voltage signal can be controlled to meet the second control condition when the current operation information meets the first control condition, and the first noise generated by the electronic device when the current operation information meets the first control condition is smaller than the second noise generated by the electronic device when the change amplitude of the power supply output voltage signal meets the second control condition, thereby achieving noise reduction. It can be seen that in the present application, by monitoring the current operation information of the electronic device, the change amplitude of the power supply output voltage signal is controlled, thereby reducing the noise of the electronic device, and after reducing the noise, the user's experience of using the electronic device is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0050] Figure 1 A flow chart of a control method provided in Example 1 of the present application;

[0051] Figure 2-Figure 5 They are respectively another flow chart of a control method provided in Embodiment 1 of the present application;

[0052] Figure 6 A schematic diagram of the structure of a control device provided in Example 2 of the present application;

[0053] Figure 7 A schematic diagram of the structure of an electronic device provided in Embodiment 3 of the present application;

[0054] Figure 8-Figure 16 They are respectively example diagrams of the application of the present invention for noise reduction in laptops. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0056] In order to achieve noise reduction, this application can be implemented in the following ways:

[0057] First, the current operation information of the electronic device is obtained, and the current operation information indicates the status of the components contained in the electronic device, such as the screen operation status or the load status of the processor and memory in the device such as a mobile phone, pad or notebook;

[0058] Afterwards, determine whether the current operating information meets the first control condition. When the current operating information meets the first control condition, control the change amplitude of the power supply output voltage signal to meet the second control condition; wherein the current operating information meets the first control condition so that the electronic device powered by the power supply generates a first noise, and the change amplitude of the power supply output voltage signal meets the second control condition so that the electronic device powered by the power supply generates a second noise, and the first noise is greater than the second noise.

[0059] It can be seen that in the present application, the noise generated by the electronic device is reduced by controlling the variation amplitude of the power supply output voltage signal.

[0060] Specifically, in an electronic device powered by a power supply, there is a first component, such as a ceramic capacitor, which generates noise when stimulated by the voltage change of the power supply. That is to say, in the present application, the noise generated by the first component is reduced by controlling the amplitude of the change of the voltage signal output when the power supply powers the electronic device, thereby achieving effective noise reduction.

[0061] In addition, the electronic device also includes a second component, such as a central processing unit (CPU) component, which sends a voltage request instruction to the power supply, such as an SVID (System V Interface Description) instruction, thereby providing voltage output information to the power supply, and the power supply outputs a voltage signal to the CPU according to the voltage output information.

[0062] It should be noted that the noise involved in this application refers to the sound with chaotic pitch and intensity changes and sounds inharmonious, which is specifically produced by the irregular vibration of the sound-producing body (different from musical sound), that is, noise is the sound produced when the sound-producing body vibrates irregularly; or, noise refers to the sound that should not exist in a certain environment, which can be understood as noisy and harsh sound, such as any sound that interferes with people's normal rest, study and work, and any sound that interferes with the sound that people want to hear. Noise reduction in this disclosure refers to reducing the sound intensity and sound power of noise, so that the electronic equipment after noise reduction will not affect the user's use.

[0063] The following is an example of the implementation scheme in this application:

[0064] refer to Figure 1 , is a flow chart of a control method provided in the first embodiment of the present application. The method is applicable to electronic devices with power supplies, such as mobile phones, pads, notebooks, etc. In specific implementation, the method in this embodiment can be executed in a processor different from the CPU in the electronic device, such as the basic input and output system BIOS (Basic Input Output System). In the electronic device, the power supply is instructed by the electronic device to supply power to the electronic device. The technical solution in this embodiment is mainly used to achieve noise reduction for the electronic device.

[0065] Specifically, the method in this embodiment may include the following steps:

[0066] Step 101: Obtain current operation information of an electronic device.

[0067] Among them, the current operation information in this embodiment can be the operation status information of specific components in the electronic device, such as the operation status information of a display component with a display function, and the operation status information of a processor with a computing and processing function such as a CPU, and so on.

[0068] In one implementation, when obtaining the current operating information of the electronic device, this embodiment can obtain the current operating information of the electronic device by monitoring a third component in the electronic device. The current operating information at this time represents the operating state of the third component.

[0069] For example, the third component may be a component with a display function or a playback function, such as a display screen or a player. In this embodiment, the current operating status of the display screen is monitored to obtain current operating information that can characterize whether the display screen is in an operating status. For example, the current operating information characterizes that the display screen is in a black screen sleep state or that the display screen is in a display state.

[0070] In another implementation, when obtaining the current operating information of the electronic device, this embodiment can obtain the current operating state of the electronic device by monitoring the second component in the electronic device, and the current operating information of this matter represents the load state of the second component.

[0071] For example, the second component may be a component with a computing and processing function, such as a CPU. In this embodiment, the current load state of the CPU is monitored, such as monitoring the CPU occupancy rate or the CPU idle rate, so as to obtain the current operation information that can characterize the load state of the CPU. At this time, the current operation information characterizes that the CPU is in a high-load operation state, or characterizes that the CPU is in a light-load operation state. Specifically, in this embodiment, a threshold judgment can be made on the CPU occupancy rate or the CPU idle rate, so as to obtain the current operation information characterizing the CPU load state. For example, when the CPU occupancy rate is greater than or equal to a preset first load threshold, the obtained current operation information characterizes that the CPU is in a high-load state. When the CPU occupancy rate is less than or equal to a preset second load threshold, the obtained current operation information characterizes that the CPU is in a light-load state, wherein the first load threshold is greater than or equal to the second load threshold.

[0072] Alternatively, in this embodiment, the current temperature state of the CPU can be monitored to obtain current operating information that can characterize the load state of the CPU. At this time, the current operating information characterizes that the CPU is in a high-load operating state, or characterizes that the CPU is in a light-load operating state. Specifically, in this embodiment, the current temperature value of the CPU is collected by using the built-in temperature sensor DTS (digital thermal sensor) of the CPU, and then the current temperature value of the CPU is judged by a threshold value to obtain the current operating information characterizing the CPU load state. For example, when the current temperature value of the CPU is greater than or equal to the preset first temperature threshold, the current operating information obtained characterizes that the CPU is in a high-load state. When the current temperature value of the CPU is less than or equal to the preset second temperature threshold, the current operating information obtained characterizes that the CPU is in a light-load state, wherein the first temperature threshold is greater than or equal to the second temperature threshold.

[0073] It should be noted that, in order to improve accuracy, in this embodiment, when using DTS to collect the current temperature value of the CPU, the average temperature value of the temperature values ​​collected by DTS multiple times can be used, and then the threshold value of the average temperature value of the CPU can be judged. For example, the weighted average of 6 or even more than 9 temperature values ​​is written into the register of the electronic device to provide it to the BIOS for judging the temperature threshold, thereby obtaining the current operation information representing the CPU load state.

[0074] Step 102: Determine whether the current operation information meets the first control condition. If the current operation information meets the first control condition, execute step 103.

[0075] Specifically, the first control condition in this embodiment may be a switching condition of an operating state of a specific component in the electronic device, or may be a switching condition of a load state of a specific component in the electronic device.

[0076] That is to say, in this embodiment, it is judged whether the state information of the specific component in the electronic device represented in the current operation information matches the switching condition in the first control condition.

[0077] For example, determine whether the operating state of the third component in the current operating information matches the operating state of the third component after the state is switched in the first control condition, or determine whether the load state of the second component in the current operating information matches the load state of the second component after the state is switched in the first control condition.

[0078] Based on this, the current operation information in this embodiment may meet the first control condition in the following situations:

[0079] In one case, the current operating information meets the first control condition means that the current operating information indicates that the third component switches from the first operating state to the second operating state, and the power consumption of the third component in the first operating state is less than the power consumption of the third component in the second operating state.

[0080] That is, when the third component enters a high power consumption operating state from a low power consumption operating state, it can be determined that the current operating information meets the first control condition. For example, when the display screen enters a normal display state from an off state or a dormant state, the current operating information meets the first control condition, and step 103 is triggered.

[0081] In another case, the current operating information meets the first control condition when: the current operating information indicates that the second component switches from the first load state to the second load state, and the power consumption of the second component in the first load state is greater than the power consumption of the second component in the second load state.

[0082] That is, when the second component changes from a load state with high power consumption to a load state with low power consumption, it can be determined that the current operation information meets the first control condition. For example, when the display screen is in the display state, the CPU changes from a heavy load to a light load, and the current operation information meets the first control condition, which triggers the execution of step 103.

[0083] For example, if the CPU occupancy rate is less than or equal to the preset second load threshold, the obtained current operation information indicates that the CPU is in a light load state, which meets the first control condition. Alternatively, if the current temperature value of the CPU is less than or equal to the preset second temperature threshold, the obtained current operation information indicates that the CPU is in a light load state, which meets the first control condition.

[0084] Step 103: Control the change amplitude of the power supply output voltage signal to meet the second control condition.

[0085] Among them, the current operating information meets the first control condition so that the electronic device powered by the power supply generates a first noise, and the change amplitude of the power supply output voltage signal meets the second control condition so that the electronic device powered by the power supply generates a second noise, and the first noise is greater than the second noise.

[0086] That is to say, in this embodiment, after the variation amplitude of the power supply output voltage signal is controlled and made to meet the second control condition, noise reduction of the electronic device can be achieved.

[0087] Specifically, in this embodiment, the change amplitude of the power supply output voltage signal meets the second control condition, which can be: the power supply is controlled to output a voltage signal according to a voltage change amplitude lower than the voltage signal output by the power supply when the current operating information meets the first control condition.

[0088] For example, based on the amplitude of the voltage signal output by the power supply when the current operating information meets the first control condition, the power supply output voltage signal is controlled to reduce the amplitude difference formed by the output voltage signal, so that the amplitude of the voltage signal actually output by the power supply is lower than the voltage change amplitude of the voltage signal output by the power supply when the current operating information meets the first control condition, thereby reducing the voltage change amplitude of the output voltage signal, thereby reducing the pressure difference formed on the first component by the voltage signal output to the first component, thereby reducing the vibration amplitude on the first component, and thus reducing the noise generated on the first component.

[0089] It can be seen from the above scheme that in a control method provided in the first embodiment of the present application, by obtaining the current operation information of the electronic device, the change amplitude of the power supply output voltage signal can be controlled to meet the second control condition when the current operation information meets the first control condition, and the first noise generated by the electronic device when the current operation information meets the first control condition is less than the second noise generated by the electronic device when the change amplitude of the power supply output voltage signal meets the second control condition, thereby achieving noise reduction. It can be seen that in this embodiment, by monitoring the current operation information of the electronic device, the change amplitude of the power supply output voltage signal is controlled, thereby reducing the noise of the electronic device, and after reducing the noise, the user's experience of using the electronic device is significantly improved.

[0090] In one implementation, the required voltage of the second component included in the electronic device has at least a first voltage range and a second voltage range, and the voltage variation amplitude of the first voltage range is smaller than the voltage variation amplitude of the second voltage range.

[0091] Specifically, the second component has at least one working mode, and the voltage variation range required by the second component in the corresponding working mode is different. For example, the CPU has multiple working modes such as C0-C10, and the CPU is dynamically switched between C1 and C10 in an unfixed manner, so that the voltage required by the CPU has at least 10 voltage ranges, and the voltage variation range in each voltage range is different, such as the voltage variation range of the voltage required between C0 and C8 is smaller than the voltage variation range of the voltage required in C9-C10. Therefore, when the CPU dynamically switches between the working modes in C9-C10, the voltage variation range caused by the voltage required by the CPU will be significantly larger, and the voltage at both ends of the ceramic capacitor may change greatly, such as the voltage difference can reach 1000mv, or even higher, and then obvious buzzing noise may be heard, while when the CPU dynamically switches between the working modes in C0 to C8, the voltage variation range caused by the voltage required by the CPU is smaller, the voltage variation at both ends of the ceramic capacitor decreases sharply, and the voltage difference may not reach 400mv, so the noise on the ceramic capacitor will be significantly smaller.

[0092] Accordingly, in order to reduce noise, in step 103 of this embodiment, the variation amplitude of the output voltage signal of the control power supply meets the second control condition, which may be:

[0093] The control power supply outputs a voltage signal to the second component with a voltage variation amplitude corresponding to the first voltage range. That is, the control power supply outputs a voltage signal to the second component with a voltage variation amplitude corresponding to the second component in the first working mode. The first working mode may be a working mode in which the voltage signal output by the power supply no longer changes frequently and drastically and the voltage amplitude variation difference is small.

[0094] For example, for the display screen, in this embodiment, after the display screen is monitored to enter the normal display state, the control power supply outputs a voltage signal to the CPU according to the voltage requirement of the CPU in any working mode from C0 to C8, so that the CPU operates in the working mode from C0 to C8, and the voltage signal output by the power supply no longer changes frequently and drastically, achieving the effect of reducing the voltage variation range, so that no large voltage difference will be generated on components such as ceramic capacitors, thereby achieving noise reduction. At this time, the display screen is in the display state, and the control power supply outputs a voltage signal to the CPU according to the voltage requirement of the CPU in any working mode from C0 to C8. Therefore, while achieving noise reduction, the power supply allows the CPU to operate only between the working modes from C0 to C8, which will not affect the user's experience of the electronic device and the display screen.

[0095] For another example, for the CPU, in this embodiment, when the current temperature value of the CPU is monitored to be less than the second temperature threshold value, such as less than 43 degrees, it means that the CPU is in a light load state. At this time, the control power supply outputs a voltage signal to the CPU according to the voltage requirement of the CPU in any working mode from C0 to C8, so that the CPU runs in the working mode from C0 to C8, and the voltage signal output by the power supply no longer changes frequently and drastically, achieving the effect of reducing the voltage variation range, so that a large voltage difference will no longer be generated on components such as ceramic capacitors, thereby achieving noise reduction. At this time, the CPU is in a light load state, which can meet the user's requirements for the operating speed of the electronic device, etc. At this time, the control power supply outputs a voltage signal to the CPU according to the voltage requirement of the CPU in any working mode from C0 to C8, so that the CPU only runs between the working modes from C0 to C8 and does not affect the user's experience of using the electronic device.

[0096] In a specific implementation, in this embodiment, the operating parameters of the third component can be adjusted to control the power supply to output a voltage signal to the second component with a voltage variation amplitude corresponding to the first voltage range.

[0097] Among them, the operating parameter of the third component can be the screen self-wake-up parameter PSR (pannel selfrefresh) of the display screen. Based on this, in this embodiment, the BIOS adjusts the PSR of the display screen to a closed state to control the power supply to output a voltage signal to the second component with a voltage change amplitude corresponding to the first voltage range, that is, the control power supply outputs a voltage signal to the second component with a voltage change amplitude corresponding to the second component in the first working mode. For example, when the CPU is in a light load state, such as when the temperature value of the CPU is less than or equal to the second temperature threshold, the control power supply outputs a voltage signal to the CPU according to the voltage requirement of the CPU in any working mode from C0 to C8.

[0098] Based on the above implementation, in this embodiment, if it is determined in step 102 that the current operation information does not meet the first control condition, the following steps may be performed: Figure 2 As shown in:

[0099] Step 104: Control the power supply to output a voltage signal to the second component with a voltage variation amplitude corresponding to the second voltage range.

[0100] Among them, the current operation information does not meet the first control condition in the following situations:

[0101] In one case, the current operating information does not meet the first control condition means that the current operating information indicates that the third component switches from the second operating state to the first operating state, and the power consumption of the third component in the second operating state is greater than the power consumption of the third component in the first operating state.

[0102] That is, when the third component enters a low power consumption operating state from a high power consumption operating state, it can be determined that the current operating information no longer meets the first control condition. For example, when the display screen enters a closed state or a dormant state from a normal display, the current operating information does not meet the first control condition, and step 104 is triggered.

[0103] In another case, the current operating information does not meet the first control condition means that: the current operating information indicates that the second component switches from the second load state to the first load state, and the power consumption of the second component in the second load state is less than the power consumption of the second component in the first load state.

[0104] That is, when the second component enters a load state with high power consumption from a load state with low power consumption, it can be determined that the current operation information no longer meets the first control condition. For example, when the display screen is in a display state, the CPU enters a heavy load from a light load, and the current operation information no longer meets the first control condition, which triggers the execution of step 104.

[0105] For example, if the CPU occupancy rate is greater than or equal to the preset first load threshold, the current operation information obtained indicates that the CPU is in a heavy load state and does not meet the first control condition. Alternatively, if the current temperature value of the CPU is greater than or equal to the preset first temperature threshold, the current operation information obtained indicates that the CPU is in a heavy load state and does not meet the first control condition.

[0106] In a specific implementation, in step 104, controlling the power supply to output a voltage signal to the second component with a voltage change amplitude corresponding to the second voltage range means: controlling the power supply to output a voltage signal to the second component with a voltage change amplitude corresponding to the second component in the second working mode. The second working mode can be a working mode in which the voltage signal output by the power supply is not limited, that is, it is consistent with the voltage required by the second component.

[0107] For example, with respect to a display screen, in this embodiment, after the display screen is monitored to enter an off state or a standby state, the control power supply outputs a voltage signal to the CPU according to the voltage requirement of the CPU in any working mode from C0 to C10 based on the requirements of the CPU, so that the CPU operates in a working mode from C0 to C10. The voltage signal output by the power supply outputs a voltage signal to the CPU according to the voltage variation range required by the CPU, and the variation range of the voltage signal is no longer limited, so as to meet the operating requirements of the electronic device in the standby state.

[0108] For another example, for the CPU, in this embodiment, when the current temperature value of the CPU is monitored to be greater than or equal to the first temperature threshold, such as greater than 43 degrees, it means that the CPU is in a heavy load state. At this time, the control power supply outputs a voltage signal to the CPU according to the voltage requirement of the CPU in any working mode from C0 to C10, so that the CPU operates in the working mode from C0 to C10. The voltage signal output by the power supply outputs a voltage signal to the CPU according to the voltage change amplitude required by the CPU, and the change amplitude of the voltage signal is no longer limited, so as to meet the operating requirements of the electronic device when the CPU is in a heavy load state.

[0109] In a specific implementation, in this embodiment, the operating parameters of the third component can be adjusted to control the power supply to output a voltage signal to the second component with a voltage variation amplitude corresponding to the second voltage range.

[0110] Among them, the operating parameter of the third component can be the PSR of the display screen. Based on this, in this embodiment, the BIOS adjusts the PSR of the display screen to the on state to control the power supply to output a voltage signal to the second component with a voltage change amplitude corresponding to the second voltage range, that is, the power supply is controlled to output a voltage signal to the second component with a voltage change amplitude corresponding to the second component in the second working mode. For example, when the CPU is in a heavy load state, such as when the temperature value of the CPU is greater than or equal to the first temperature threshold, the power supply is controlled to output a voltage signal to the CPU according to the voltage requirement of the CPU in any working mode from C0 to C10.

[0111] Based on the above implementation, in step 102 of this embodiment, when it is determined that the current operation information meets the first control condition, the following steps may also be included: Figure 3 As shown in:

[0112] Step 105: delay for a first time period, and execute step 103: control the power supply to output a voltage signal to the second component with a voltage variation amplitude corresponding to the first voltage range.

[0113] Specifically, in this embodiment, the delay of the first duration can be achieved by a delayer.

[0114] If it is determined in step 102 that the current operation information does not meet the first control condition, the following steps may also be included:

[0115] Step 106: delay for a second time period, and execute step 104: control the power supply to output a voltage signal to the second component with a voltage variation amplitude corresponding to the second voltage range.

[0116] Specifically, in this embodiment, the delay of the second time length can be achieved by a delayer.

[0117] The first duration and the second duration can be determined according to requirements, and can be the same or different. For example, the first duration and the second duration are both 5 seconds or other durations.

[0118] That is to say, in this embodiment, when it is monitored that the current operating information meets the first control condition or the current operating information does not meet the first control condition, power control is delayed for a period of time to avoid the situation where the first control condition is repeatedly met or not met, causing frequent power control and leading to instability of the electronic device.

[0119] For example, after the computer operating system is started, the CPU load state is monitored, for example, the CPU DTS temperature value is monitored. When the DTS temperature value is less than or equal to 43 degrees, after a delay of 5 seconds, the power supply is controlled to output a voltage signal to the CPU according to the voltage requirement of the CPU in any working mode from C0 to C8. After that, when the DTS temperature value increases and increases to more than 43 degrees, the power supply is controlled to output a voltage signal to the CPU according to the voltage requirement of the CPU in any working mode from C0 to C10. This avoids the situation where the power supply is frequently controlled and causes a power supply crash when the DTS temperature value changes rapidly and frequently at 43 degrees.

[0120] In addition, when the power supply outputs a voltage signal to the second component without restriction, that is, when the power supply outputs a voltage signal to the second component with a voltage variation amplitude corresponding to the second voltage range, there may be a situation where the voltage signal output by the power supply varies greatly due to the second component being awakened at a time when the required voltage is in the second voltage range. At this time, the first component in the electronic device may generate greater noise due to the greater voltage variation amplitude. For example, when the power supply outputs a voltage signal to the CPU at the voltage requirement of the CPU in the C9 or C10 working mode, the electronic device may be in a standby state, and the CPU will be awakened at a time to support the standby operation of the electronic device. At this time, the power supply outputs a voltage signal to the CPU that is awakened at a time according to the wake-up instruction, and the power supply outputs a voltage according to the CPU wake-up frequency, which may cause a larger voltage variation amplitude on the ceramic capacitor and cause noise.

[0121] Therefore, in this embodiment, after controlling the power supply to output a voltage signal to the second component with a voltage variation amplitude corresponding to the second voltage range in step 104, the following steps may also be included: Figure 4 As shown in:

[0122] Step 107: Update the wake-up parameter of the second component from the first parameter value to the second parameter value, so that the second component triggers the power supply to output a voltage signal to the second component at a voltage variation amplitude corresponding to the second voltage range at a wake-up frequency corresponding to the second parameter value.

[0123] Among them, the second component triggers the power supply at a wake-up frequency corresponding to the first parameter value to output a voltage signal to the second component with a voltage change amplitude corresponding to the second voltage range to generate a third noise, and the second component triggers the power supply at a wake-up frequency corresponding to the second parameter value to output a voltage signal to the second component with a voltage change amplitude corresponding to the second voltage range to generate a fourth noise, and the third noise is greater than the fourth noise.

[0124] That is to say, in this embodiment, the voltage signal output by the power supply is adjusted by adjusting the wake-up parameter of the second component, thereby achieving noise reduction for the electronic device.

[0125] For example, if the power supply outputs a voltage signal to the CPU according to the voltage requirement of the CPU in the C9 or C10 working mode, the computer may be in standby mode at this time. The power supply periodically outputs a high voltage to the CPU so that the CPU is awakened periodically. The CPU being awakened periodically may cause large noise on the ceramic capacitor. Based on this, after the computer operating system is started, the wake-up frequency of the CPU is adjusted in this embodiment. For example, according to the frequency range of 20hz to 20Khz that can be heard by the human ear, the CPU wake-up frequency is lowered or increased in this embodiment so that it is no longer within the frequency range of 20hz to 20Khz, or it is no longer within the center frequency range of the frequency range. Specifically, in this embodiment, the CPU wake-up frequency is adjusted to 22Khz or 18hz by BIOS using the interface VCCIN demotion on the CPU. Of course, it can also be 18Khz or 23hz, thereby reducing the peak value of the noise or even achieving the purpose of avoiding noise.

[0126] It should be noted that in this embodiment, the magnitude of adjusting the CPU wake-up frequency can be set according to demand. If the wake-up frequency is increased, although energy consumption may increase, it can not only significantly reduce noise, but also improve the response rate of the electronic device; and if the wake-up frequency is lowered, although the response rate of the electronic device may be reduced, it can not only significantly reduce noise, but also save energy consumption to a certain extent. In the specific application of the technical solution in this embodiment, the user can coordinate the factors in these directions according to the actual application scenario and set a more reasonable wake-up frequency.

[0127] Based on the above implementation, the electronic device may also include a fourth component, such as an integrated south bridge PCH (Platform Controller Hub), etc. The fourth component is connected between the second component and other components, and the power supply outputs a voltage signal to the fourth component. The required voltage of the fourth component has at least a first voltage limit and a second voltage limit, and the first voltage limit is less than the second voltage limit.

[0128] Among them, the first voltage limit corresponds to the voltage change amplitude under this limit, for example, 0.6 or 1.2 corresponds to the voltage change amplitude of 0-0.6 or the voltage change amplitude of 0-1.2 when it is used as the voltage limit; the second voltage limit corresponds to the voltage change amplitude under this limit, for example, 1.8 corresponds to the voltage change amplitude of 0-1.8 when it is used as the voltage limit.

[0129] Based on this, after the power supply is controlled to output a voltage signal to the second component with a voltage variation amplitude corresponding to the first voltage range in step 103, that is, after the voltage variation amplitude of the second component is adjusted to achieve noise reduction in this embodiment, noise reduction is further achieved through the following steps, such as Figure 5As shown in:

[0130] Step 108: Control the power supply to output a voltage signal to the fourth component with a voltage variation amplitude corresponding to the first voltage limit.

[0131] Among them, the power supply outputs a voltage signal to the fourth component with a voltage change amplitude corresponding to the first voltage limit to generate fifth noise, and the power supply outputs a voltage signal to the fourth component with a voltage change amplitude corresponding to the second voltage limit to generate sixth noise, and the fifth noise is smaller than the sixth noise.

[0132] That is to say, in this embodiment, further noise reduction of the electronic device is achieved by adjusting the voltage variation amplitude of the voltage signal output by the power supply to the fourth component.

[0133] For example, in this embodiment, the BIOS limits the voltage amplitude of the voltage signal output by the power supply to the PCH through the interface VCCIN AUX, so that the maximum voltage value of the voltage signal output by the power supply to the PCH does not exceed the voltage limit, such as not exceeding 1.2 or 0.6. At this time, the maximum voltage value of the voltage signal output by the power supply to the PCH does not exceed 1.2 or 0.6. Compared with the noise caused by the PCH when the maximum voltage value of the voltage signal is 1.8, the voltage change amplitude on the PCH will be significantly reduced, thereby reducing the overall noise on the computer.

[0134] refer to Figure 6 , is a schematic diagram of the structure of a control device provided in the second embodiment of the present application. The device can be configured in an electronic device with a power supply, such as a mobile phone, a pad or a notebook. In a specific implementation, the device in this embodiment can be a processor in the electronic device that is different from the CPU, such as BIOS. In the electronic device, the power supply is instructed by the electronic device to supply power to the electronic device. The technical solution in this embodiment is mainly used to achieve noise reduction for the electronic device.

[0135] Specifically, the device in this embodiment may include the following units:

[0136] The operation obtaining unit 601 is used to obtain the current operation information of the electronic device;

[0137] The power control unit 602 is used to control the change amplitude of the power output voltage signal to meet the second control condition when the current operation information meets the first control condition;

[0138] The current operation information meets the first control condition so that the electronic device powered by the power supply generates a first noise, and the change amplitude of the power supply output voltage signal meets the second control condition so that the electronic device powered by the power supply generates a second noise;

[0139] The first noise is greater than the second noise;

[0140] There is a first component in the electronic device powered by the power supply, and the first component is stimulated by the voltage change of the power supply to generate the noise.

[0141] It can be seen from the above scheme that in a control device provided in the second embodiment of the present application, by obtaining the current operation information of the electronic device, the change amplitude of the power supply output voltage signal can be controlled to meet the second control condition when the current operation information meets the first control condition, and the first noise generated by the electronic device when the current operation information meets the first control condition is less than the second noise generated by the electronic device when the change amplitude of the power supply output voltage signal meets the second control condition, thereby achieving noise reduction. It can be seen that in this embodiment, by monitoring the current operation information of the electronic device, the change amplitude of the power supply output voltage signal is controlled, thereby reducing the noise of the electronic device, and after reducing the noise, the user's experience of using the electronic device is significantly improved.

[0142] In one implementation, the electronic device further includes a second component, the second component is a component having a computing function, the power supply outputs a voltage signal to the second component, the required voltage of the second component has at least a first voltage range and a second voltage range, and the voltage variation amplitude of the first voltage range is smaller than the voltage variation amplitude of the second voltage range;

[0143] The power control unit 602 is specifically used to control the power supply to output a voltage signal to the second component with a voltage variation amplitude corresponding to the first voltage range.

[0144] In one implementation, the power control unit 602 is further used to: when the current operating information does not meet the first control condition, control the power supply to output a voltage signal to the second component with a voltage change amplitude corresponding to the second voltage range.

[0145] In one implementation, when the current operation information meets the first control condition, the power control unit 602 is specifically configured to: delay for a first time period, and then control the power supply to output a voltage signal to the second component with a voltage variation amplitude corresponding to the first voltage range;

[0146] In one implementation, when the current operating information does not meet the first control condition, the power supply control unit 602 is specifically used to: delay a second time period, and then control the power supply to output a voltage signal to the second component with a voltage change amplitude corresponding to the second voltage range.

[0147] In one implementation, after controlling the power supply to output a voltage signal to the second component with a voltage variation amplitude corresponding to the second voltage range, the power supply control unit 602 is further configured to: update a wake-up parameter of the second component from a first parameter value to a second parameter value, so that the second component triggers the power supply to output a voltage signal to the second component with a voltage variation amplitude corresponding to the second voltage range at a wake-up frequency corresponding to the second parameter value;

[0148] Among them, the second component triggers the power supply at the wake-up frequency corresponding to the first parameter value to output a voltage signal to the second component with a voltage change amplitude corresponding to the second voltage range to generate a third noise, and the second component triggers the power supply at the wake-up frequency corresponding to the second parameter value to output a voltage signal to the second component with a voltage change amplitude corresponding to the second voltage range to generate a fourth noise; the third noise is greater than the fourth noise.

[0149] In one implementation, the electronic device further includes a fourth component, the fourth component is connected between the second component and other components, the power supply outputs a voltage signal to the fourth component, the required voltage of the fourth component has at least a first voltage limit and a second voltage limit, and the first voltage limit is less than the second voltage limit;

[0150] Based on this, after controlling the power supply to output a voltage signal to the second component with a voltage variation amplitude corresponding to the first voltage range, the power supply control unit 602 is further configured to: control the power supply to output a voltage signal to the fourth component with a voltage variation amplitude corresponding to the first voltage limit;

[0151] Among them, the power supply outputs a voltage signal to the fourth component with a voltage change amplitude corresponding to the first voltage limit to generate fifth noise, and the power supply outputs a voltage signal to the fourth component with a voltage change amplitude corresponding to the second voltage limit to generate sixth noise; the fifth noise is smaller than the sixth noise.

[0152] In one implementation, the operation obtaining unit 601 is specifically used to: monitor a third component in the electronic device to obtain current operation information of the electronic device; the current operation information represents the operation state of the third component;

[0153] Alternatively, the operation obtaining unit 601 is specifically configured to monitor a second component in the electronic device to obtain a current operation status of the electronic device, wherein the current operation information represents a load status of the second component.

[0154] Wherein, the current operating information meets the first control condition, including: the current operating information represents: the third component switches from the first operating state to the second operating state; wherein the power consumption of the third component in the first operating state is less than the power consumption of the third component in the second operating state; or; the current operating information represents: the second component switches from the first load state to the second load state; wherein the power consumption of the second component in the first load state is greater than the power consumption of the second component in the second load state.

[0155] It should be noted that the specific implementation of each unit in this embodiment can refer to the corresponding content in the previous text and will not be described in detail here.

[0156] refer to Figure 7 , is a schematic diagram of the structure of an electronic device provided in the third embodiment of the present application, the electronic device may be an electronic device with a power supply, such as a mobile phone, a pad or a notebook, in which the power supply is instructed by the electronic device to supply power to the electronic device. The technical solution in this embodiment is mainly used to achieve noise reduction for the electronic device.

[0157] Specifically, the electronic device in this embodiment may include the following structure:

[0158] Power supply 701;

[0159] A first component 702, which is excited by the voltage change of the power supply to generate noise, such as a ceramic capacitor or other components;

[0160] The processor 703, such as BIOS, is used to execute an application program to implement the following functions: obtaining current operation information of the electronic device; when the current operation information meets the first control condition, controlling the change amplitude of the output voltage signal of the power supply 701 to meet the second control condition;

[0161] Among them, the current operation information meets the first control condition so that the electronic device generates a first noise, and the change amplitude of the output voltage signal of the power supply 701 meets the second control condition so that the electronic device generates a second noise; the first noise is greater than the second noise.

[0162] It can be seen from the above scheme that in a control device provided in the second embodiment of the present application, by obtaining the current operation information of the electronic device, the change amplitude of the power supply output voltage signal can be controlled to meet the second control condition when the current operation information meets the first control condition, and the first noise generated by the electronic device when the current operation information meets the first control condition is less than the second noise generated by the electronic device when the change amplitude of the power supply output voltage signal meets the second control condition, thereby achieving noise reduction. It can be seen that in this embodiment, by monitoring the current operation information of the electronic device, the change amplitude of the power supply output voltage signal is controlled, thereby reducing the noise of the electronic device, and after reducing the noise, the user's experience of using the electronic device is significantly improved.

[0163] Taking the electronic device as a laptop computer as an example, the inventor of the present application found that the computer had a large noise when using the laptop computer for work. After analyzing the reasons for the noise generated by the computer, it was found that: when the CPU starts working, the voltage loaded on the two poles of the ceramic capacitor MLCC is in a dynamic change state at all times due to the constantly changing voltage output of the CPU. For example, the C state of the CPU is constantly changing from C0 to C10, which causes the constantly changing voltage output to cause the voltage loaded on the two poles of the ceramic capacitor MLCC to be in a dynamic change state at all times, triggering the piezoelectric effect of the ceramic capacitor, thereby causing a resonance phenomenon and emitting obvious audio noise. The piezoelectric effect of the ceramic capacitor is triggered, thereby causing a resonance phenomenon and emitting obvious audio noise.

[0164] Secondly, the inventor of the present application also found that: according to the behavior of the CPU and the state of the operating system test, in the standby state, the operating system and the CPU will communicate and wake up the CPU working voltage at a fixed time, in order to quickly respond to the operation and processing of various software, such as Figure 8 As shown in the figure, therefore, in standby mode, since various software in the background need to be awakened at any time, the output voltage of the CPU must be switched frequently, and the voltage level changes dynamically from 0V to 1.6V, which causes a significant change in the voltage on the ceramic capacitor, causing a piezoelectric effect and resulting in greater noise.

[0165] In addition, after the CPU's PCH is separated, the voltage level of the PCH's FVIR VCCIN_AUX is divided into four levels, namely: 1.8V / 1.2V / 0.6V / 0V. In low power consumption, such as standby mode, the voltage level is 0V, 0.6V / 1.2V under light load, and 1.8V under heavy CPU use. In different modes, in order to save power and respond quickly, the voltage level of VCCINAUX frequently switches between 0V and 1.8V. Although it can quickly respond to the operation and processing of various software, it will cause frequent voltage switching of VCCIN AUX, resulting in a higher switching frequency of high and low voltage levels, causing a larger voltage difference between the two poles of the ceramic capacitor, resulting in a higher vibration amplitude of the ceramic capacitor MLCC, causing greater noise.

[0166] To solve the above noise defects, the inventors of this application have further studied and proposed a solution to reduce the noise of notebook computers. There are several implementation methods:

[0167] In one implementation, the present application utilizes BIOS to dynamically adjust the notebook screen brightness, such as the ON or OFF state, so that the CPU dynamically switches between the C8 state and the C10 state. Based on this, the CPU's SVID (System V Interface Description) instruction uses different voltage levels in the C8 to C10 states, thereby reducing the electronic audio noise of the notebook under different working conditions. Fig. 9 The noise reduction effect shown in the figure shows that after the CPU state is switched, the dynamic voltage change amplitude is reduced from more than 1600mv to 560mv, and the noise in the notebook is significantly reduced.

[0168] Specifically, in this application, when the computer is working normally, the BIOS determines whether limit is needed at this time by detecting the on and off status of the computer screen. When the screen is off, the CPU's C state is limited to the C8-C10 state. When the operating system enters modern standby (low power mode), the CPU's C state is changed to AUTO again according to the screen on and off, causing the voltage change at the two poles of the ceramic capacitor MLCC to drop sharply, making the change amplitude less than 560mV, thereby eliminating the obvious buzzing power supply noise. At the same time, it does not affect the notebook's function of entering and exiting modern standby. In addition, it does not have any impact on the notebook's battery life and MS function.

[0169] like Fig.10As shown in, taking Intel CPU as an example, after the computer starts and the CPU starts working, the operating system is entered, and the screen on or off corresponds to different C states. For example, screen on corresponds to CPU C state limitto C0-C8, and screen off corresponds to CPU C state AUTO, that is, corresponding to C0-C10. The BIOS uses the ASL code code to open the Intel SMI OXB2 port in screen on or off, and triggers the SMI event. At this time, the ASL code is executed by the BIOS to change the C state to AUTO or C8-C10.

[0170] Furthermore, after each modification is completed, the operating system may be entered to check whether there is any abnormality in the C state.

[0171] It can be seen that the above solution utilizes the different power performance of the Intel CPU in different C-states when the notebook screen brightness (ON / OFF) is different, thereby solving the computer's power noise problem without affecting the notebook's performance and battery life, and at the same time does not affect the notebook's entry / exit of the modern standby function.

[0172] In another implementation, the present application dynamically adjusts the ON / OFF state of PSR to enable the Intel CPU to dynamically switch between C8 and C10, using CPU SVID commands at different voltage levels in the C8 to C10 states, and adding delays in the circuit to reduce the electronic audio noise of the notebook under different working conditions.

[0173] Combination Fig.11 In the architecture, such as Fig.12 As shown in the flowchart, the computer starts in the PSR ON state by default. After entering the operating system, the embedded controller EC (Embed Controller) starts to read the CPU DTS temperature value in real time. The EC detection frequency is 1s / time. After taking the weighted average of 6 values, it is written into the register to provide it to the BIOS for PSR adjustment. Specifically, EC detects different temperatures and sends the trigger event to the BIOS when the trigger point is reached. The BIOS controls the PSR state under the operating system. When the CPU DTS temperature value is greater than 43 degrees, it will notify the BIOS to modify the PSR state to ON after a certain delay. When the CPU DTS temperature value is less than 43 degrees, it will notify the BIOS to modify the PSR state to OFF after a certain delay.

[0174] Every time the computer restarts the operating system, the BIOS will set the PSR state to ON by default.

[0175] It can be seen that when the computer is working normally, under light load, BIOS changes PSR to OFF state, at which time the CPU dynamically switches from C0 to C8. Under heavy load, PSR is changed to ON state, at which time the CPU dynamically switches from C0 to C10. Thus, by utilizing the different performances under C0 to C10, the voltage change at the two poles of the ceramic capacitor MLCC is sharply reduced, such as dropping below 400mV, thereby eliminating the obvious buzzing power supply noise.

[0176] Therefore, in this application, the different power performance of the CPU under different C states when the PSR is in the ON / OFF state is utilized. After the computer is started, the settings are turned off and the default settings are restored without affecting any user experience and without affecting the notebook performance and battery life.

[0177] In another implementation, the present application adjusts the CPU wake-up frequency of the CPU power supply in the CPU C9 or C10 state, thereby reducing the switching frequency of the CPU power supply between high and low voltage levels, reducing the voltage difference between the two poles of the ceramic capacitor, thereby reducing the vibration amplitude of the ceramic capacitor MLCC, and further reducing the resonance amplitude of the entire motherboard, thereby achieving a significant reduction in the sound intensity level of audio noise.

[0178] Specifically, Fig.13 As shown in , after the computer is started in the default state, the delayer starts timing and notifies the BIOS after a delay of 10 seconds. Then, the BIOS modifies the CPU VCCIN DEMOTION to 30 milliseconds to set the wake-up time interval corresponding to the CPU wake-up frequency to 30 milliseconds. As a result, the switching frequency of high and low voltage levels can be reduced, and the voltage difference between the two poles of the ceramic capacitor can be reduced, thereby reducing the vibration amplitude of the ceramic capacitor MLCC, and then reducing the resonance amplitude of the entire motherboard, thereby greatly reducing the sound intensity level of the audio noise, such as Fig.14 The noise reduction effect is shown in .

[0179] In another implementation, the present application adjusts the working mode of the fully integrated voltage regulator (FIVR) power supply of the PCH, thereby changing the voltage level switching speed and range of the VCCIN_AUX power supply in the standby state and the working state of the laptop computer, so that the PCH FIVR power supply output is maintained at a high voltage level or a low voltage level, reducing the switching frequency of high and low voltage levels, reducing the voltage difference between the two poles of the ceramic capacitor, thereby reducing the vibration amplitude of the ceramic capacitor MLCC, and then reducing the resonance amplitude of the entire motherboard, thereby achieving a significant reduction in the sound intensity level of audio noise.

[0180] Specifically, the voltage level of VCCIN_AUX of FVIR of PCH is divided into four levels, namely: 1.8V / 1.2V / 0.6V / 0V. In low power consumption such as IDLE state, the voltage level is a low voltage level of 0V, in medium operation it is a medium voltage level of 0.6V / 1.2V, and in full load use of CPU, the high voltage level is 1.8V. Fig.15 As shown in the flow chart, after the computer is started in the default state, in order to avoid the frequent switching of the voltage level of VCCIN AUX between 0V and 1.8V, the voltage level of the FIVR of the PCH in the present application is set at a medium voltage level, or even set to a low voltage level, which can successfully avoid the frequent voltage switching of VCCIN AUX under different states. Therefore, after adjusting the voltage level, obvious noise reduction is achieved, such as Fig.16 The noise reduction in the

[0181] In summary, the present application can significantly improve the serious audio noise problem of a laptop computer when it is working, without changing the power supply vibration cycle and frequency, having no effect on the power supply output efficiency, and having no effect on the laptop performance and battery life.

[0182] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0183] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0184] The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0185] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A control method, comprising: Obtain current operating information of electronic equipment; When the current operation information meets the first control condition, the change amplitude of the power supply output voltage signal is controlled to meet the second control condition; The current operation information meets the first control condition so that the electronic device powered by the power supply generates a first noise, and the change amplitude of the power supply output voltage signal meets the second control condition so that the electronic device powered by the power supply generates a second noise; The first noise is greater than the second noise; There is a first component in the electronic device powered by the power supply, and the first component is excited by the voltage change of the power supply to generate the noise; The current operation information of the electronic device is obtained, and the current operation information meets the first control condition, including any one of the following: Monitoring a third component in an electronic device to obtain current operation information of the electronic device; the current operation information represents the operation state of the third component, and the third component is a component with a display function or a playback function; the current operation information represents: the third component switches from a first operation state to a second operation state; wherein the power consumption of the third component in the first operation state is less than the power consumption of the third component in the second operation state; Monitor a second component in an electronic device to obtain a current operating state of the electronic device, wherein the current operating information represents a load state of the second component, and the second component is a component with a computing and processing function; the current operating information represents: the second component switches from a first load state to a second load state; wherein the power consumption of the second component in the first load state is greater than the power consumption of the second component in the second load state.

2. The method according to claim 1, wherein the electronic device further comprises a second component, the second component is a component having a computing function, the power supply outputs a voltage signal to the second component, the required voltage of the second component has at least a first voltage range and a second voltage range, and the voltage variation amplitude of the first voltage range is smaller than the voltage variation amplitude of the second voltage range; in, The controlling the change amplitude of the power supply output voltage signal to meet the second control condition comprises: The power supply is controlled to output a voltage signal to the second component with a voltage variation amplitude corresponding to the first voltage range.

3. The method according to claim 2, further comprising: When the current operation information does not meet the first control condition, the power supply is controlled to output a voltage signal to the second component with a voltage change amplitude corresponding to the second voltage range.

4. The method according to claim 3, when the current operation information meets the first control condition, the method further comprises: Delaying for a first time length, executing the steps of: controlling the power supply to output a voltage signal to the second component with a voltage variation amplitude corresponding to the first voltage range; Wherein, when the current operation information does not meet the first control condition, the method further includes: Delay for a second time period and execute the step of controlling the power supply to output a voltage signal to the second component with a voltage variation amplitude corresponding to the second voltage range.

5. The method according to claim 3, after controlling the power supply to output a voltage signal to the second component with a voltage variation amplitude corresponding to the second voltage range, the method further comprises: updating the wake-up parameter of the second component from the first parameter value to the second parameter value, so that the second component triggers the power supply to output a voltage signal to the second component at a voltage variation amplitude corresponding to the second voltage range at a wake-up frequency corresponding to the second parameter value; The second component triggers the power supply to output a voltage signal to the second component at a voltage change amplitude corresponding to the second voltage range at a wake-up frequency corresponding to the first parameter value to generate a third noise, and the second component triggers the power supply to output a voltage signal to the second component at a voltage change amplitude corresponding to the second voltage range at a wake-up frequency corresponding to the second parameter value to generate a fourth noise; The third noise is greater than the fourth noise.

6. The method according to claim 2, wherein the electronic device further comprises a fourth component, the fourth component is connected between the second component and the other components, the power supply outputs a voltage signal to the fourth component, the required voltage of the fourth component has at least a first voltage limit and a second voltage limit, and the first voltage limit is less than the second voltage limit; After controlling the power supply to output a voltage signal to the second component with a voltage variation amplitude corresponding to the first voltage range, the method further includes: Controlling the power supply to output a voltage signal to the fourth component with a voltage variation amplitude corresponding to the first voltage limit; The power supply outputs a voltage signal to the fourth component with a voltage variation amplitude corresponding to the first voltage limit to generate fifth noise, and the power supply outputs a voltage signal to the fourth component with a voltage variation amplitude corresponding to the second voltage limit to generate sixth noise; The fifth noise is smaller than the sixth noise.

7. A control device comprising: An operation obtaining unit, used to obtain current operation information of the electronic device; A power control unit, configured to control the change amplitude of the power supply output voltage signal to meet a second control condition when the current operation information meets the first control condition; The current operation information meets the first control condition so that the electronic device powered by the power supply generates a first noise, and the change amplitude of the power supply output voltage signal meets the second control condition so that the electronic device powered by the power supply generates a second noise; The first noise is greater than the second noise; There is a first component in the electronic device powered by the power supply, and the first component is excited by the voltage change of the power supply to generate the noise; The current operation information of the electronic device is obtained, and the current operation information meets the first control condition, including any one of the following: Monitoring a third component in an electronic device to obtain current operation information of the electronic device; the current operation information represents the operation state of the third component, and the third component is a component with a display function or a playback function; the current operation information represents: the third component switches from a first operation state to a second operation state; wherein the power consumption of the third component in the first operation state is less than the power consumption of the third component in the second operation state; Monitor a second component in an electronic device to obtain a current operating state of the electronic device, wherein the current operating information represents a load state of the second component, and the second component is a component with a computing and processing function; the current operating information represents: the second component switches from a first load state to a second load state; wherein the power consumption of the second component in the first load state is greater than the power consumption of the second component in the second load state.

8. An electronic device comprising: power supply; A first component, which is excited by the voltage variation of the power supply to generate noise; The processor is used to execute the application program to achieve the following functions: obtaining current operation information of the electronic device; when the current operation information meets the first control condition, controlling the change amplitude of the power supply output voltage signal to meet the second control condition; The current operation information meets the first control condition so that the electronic device generates a first noise, and the change amplitude of the power supply output voltage signal meets the second control condition so that the electronic device generates a second noise; The first noise is greater than the second noise; The current operation information of the electronic device is obtained, and the current operation information meets the first control condition, including any one of the following: Monitoring a third component in an electronic device to obtain current operation information of the electronic device; the current operation information represents the operation state of the third component, and the third component is a component with a display function or a playback function; the current operation information represents: the third component switches from a first operation state to a second operation state; wherein the power consumption of the third component in the first operation state is less than the power consumption of the third component in the second operation state; Monitor a second component in an electronic device to obtain a current operating state of the electronic device, wherein the current operating information represents a load state of the second component, and the second component is a component with a computing and processing function; the current operating information represents: the second component switches from a first load state to a second load state; wherein the power consumption of the second component in the first load state is greater than the power consumption of the second component in the second load state.

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