Control method, device and electronic equipment

Abstract

The present application discloses a control method, device and electronic device, the method comprising: obtaining a voltage control instruction, the voltage control instruction being used to instruct a power supply to output a voltage according to a target voltage; when a noise reduction control condition is met, controlling the power supply to output a voltage according to a first mode; when the noise reduction control condition is not met, controlling the power supply to output a voltage according to a second mode; wherein, in the first mode, if the voltage control instruction is a boost type instruction, the power supply outputs a voltage according to the target voltage, and if the voltage control instruction is a buck type instruction, the power supply outputs a voltage according to the current voltage; in the second mode, the power supply outputs a voltage according to the target voltage.

Description

Technical Field

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

[0002] Currently, during the use of laptops and other devices, the piezoelectric effect of ceramic capacitors can cause vibrations, resulting in obvious noise, which affects the user experience.

[0003] Therefore, there is an urgent need for a solution that can control the noise of the device. Summary of the invention

[0004] In view of this, the present application provides a control method, device and electronic device as follows:

[0005] A control method, comprising:

[0006] Obtaining a voltage control instruction, wherein the voltage control instruction is used to instruct the power supply to output a voltage according to a target voltage;

[0007] When the noise reduction control condition is met, controlling the power supply to output voltage according to the first mode;

[0008] When the noise reduction control condition is not met, controlling the power supply to output voltage according to a second mode;

[0009] Wherein, in the first mode, if the voltage control instruction is a boost type instruction, the power supply outputs voltage according to the target voltage, and if the voltage control instruction is a buck type instruction, the power supply outputs voltage according to the current voltage; in the second mode, the power supply outputs voltage according to the target voltage;

[0010] Wherein, in the electronic device powered by the power supply, there is a first component, the first component is excited by the voltage change of the power supply to generate noise, and, in the first mode, the electronic device powered by the power supply generates the first noise, and in the second mode, the electronic device powered by the power supply generates the second noise;

[0011] The first noise is less than or equal to the second noise.

[0012] In the above method, preferably, the noise reduction control condition is satisfied, including:

[0013] The target pin of the power chip connected to the power source is set high.

[0014] The above method, preferably, further comprises:

[0015] Monitoring the operating status of the electronic device;

[0016] If the electronic device is in a first operating state, the target pin is set to a high position; the first operating state is a state where the power consumption value is greater than a first threshold or the temperature value is greater than a second threshold.

[0017] The above method, preferably, further comprises:

[0018] Monitoring the operating status of the electronic device;

[0019] If the electronic device is in a first operating state and receives a first instruction, setting the target pin to a high level;

[0020] When the target pin is set to a high level and a second instruction is received, setting the target pin to a low level;

[0021] The first operating state is a state in which the power consumption value is greater than a first threshold or the temperature value is greater than a second threshold.

[0022] In the above method, preferably, the first instruction and the second instruction are generated sequentially by the electronic device at preset time intervals.

[0023] In the above method, preferably, in the first mode, if the voltage control instruction is a boost type instruction, after the power supply outputs the voltage according to the target voltage, the method further includes:

[0024] Sending a first signal to the electronic device, wherein the first signal enables the electronic device to determine that the power supply outputs a voltage signal of the target voltage;

[0025] Wherein, in the first mode, if the voltage control instruction is a step-down type instruction, after the power supply outputs the voltage according to the current voltage, the method further includes:

[0026] A second signal is sent to the electronic device, wherein the second signal enables the electronic device to determine that the power supply outputs a voltage signal of the target voltage.

[0027] In the above method, preferably, the electronic device has a set waiting time, and the waiting time is greater than or equal to a third threshold; the waiting time is the time the electronic device waits in the first operating state to enter the second operating state;

[0028] The second operating state is a state in which the power consumption value is less than or equal to the first threshold and the temperature value is less than or equal to the second threshold.

[0029] In the above method, preferably, the waiting time is modified according to the time received by the electronic device.

[0030] A control device, comprising:

[0031] An instruction receiver, used to obtain a voltage control instruction, wherein the voltage control instruction is used to instruct the power supply to output a voltage according to a target voltage;

[0032] A controller, configured to control the power supply to output voltage in a first mode when a noise reduction control condition is met; and to control the power supply to output voltage in a second mode when the noise reduction control condition is not met;

[0033] Wherein, in the first mode, if the voltage control instruction is a boost type instruction, the power supply outputs voltage according to the target voltage, and if the voltage control instruction is a buck type instruction, the power supply outputs voltage according to the current voltage; in the second mode, the power supply outputs voltage according to the target voltage;

[0034] Wherein, in the electronic device powered by the power supply, there is a first component, the first component is excited by the voltage change of the power supply to generate noise, and, in the first mode, the electronic device powered by the power supply generates the first noise, and in the second mode, the electronic device powered by the power supply generates the second noise;

[0035] The first noise is less than or equal to the second noise.

[0036] An electronic device, comprising:

[0037] power supply;

[0038] A first component, which is excited by the voltage variation of the power supply to generate noise;

[0039] A power supply controller, configured to obtain a voltage control instruction, wherein the voltage control instruction is used to instruct the power supply to output voltage according to a target voltage; when a noise reduction control condition is met, control the power supply to output voltage according to a first mode; when the noise reduction control condition is not met, control the power supply to output voltage according to a second mode;

[0040] Wherein, in the first mode, if the voltage control instruction is a boost type instruction, the power supply outputs voltage according to the target voltage, and if the voltage control instruction is a buck type instruction, the power supply outputs voltage according to the current voltage; in the second mode, the power supply outputs voltage according to the target voltage;

[0041] Furthermore, in the first mode, the electronic device powered by the power supply generates a first noise, and in the second mode, the electronic device powered by the power supply generates a second noise;

[0042] The first noise is less than or equal to the second noise.

[0043] It can be seen from the above technical scheme that in a control method, device and electronic device disclosed in the present application, after obtaining a voltage control instruction for indicating that the voltage is output according to the target voltage, it is determined whether the noise reduction control condition is met. If the noise reduction control condition is met, the power supply can be controlled to output the voltage according to the first mode. If the noise reduction control condition is not met, the power supply can be controlled to output the voltage according to the second mode. In the first mode, if the voltage control instruction is a boost type instruction, the power supply outputs the voltage according to the target voltage. If the voltage control instruction is a step-down type instruction, the power supply outputs the voltage according to the current voltage. The difference is that in the second mode, no matter what type of instruction the voltage control instruction is, the power supply outputs the voltage according to the target voltage. Therefore, in the present application, the voltage output mode of the power supply is switched to reduce the voltage difference of the voltage output by the power supply to achieve the purpose of noise reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] 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.

[0045] Figure 1 A flow chart of a control method provided in Example 1 of the present application;

[0046] Figure 2 This is an example diagram of an embodiment of the present application;

[0047] Figure 3 and Figure 4 They are respectively partial flow charts in Example 1 of the present application;

[0048] Figure 5-Figure 7 They are respectively another exemplary diagram of the embodiment of the present application;

[0049] Figure 8 A schematic diagram of the structure of a control device provided in Example 2 of the present application;

[0050] Fig. 9 A schematic diagram of the structure of an electronic device provided in Embodiment 3 of the present application;

[0051] Fig.10 A circuit architecture diagram when the present application is applied to a computer;

[0052] Figure 11-Figure 23 They are respectively example diagrams of applications of the present application applicable to computers. DETAILED DESCRIPTION

[0053] 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.

[0054] refer to Figure 1 As shown, it is a flow chart of an implementation of a control method provided in the first embodiment of the present application. The method can be applicable to electronic devices with a power supply, such as mobile phones, pads or notebooks, in which the power supply supplies power to the electronic device under the instruction of the electronic device.

[0055] Specifically, the method in this embodiment may include the following steps:

[0056] Step 101: Obtain voltage control instructions.

[0057] The voltage control instruction is used to instruct the power supply to output voltage according to the target voltage. The voltage control instruction may be an instruction sent by the second component in the electronic device to the power supply to request the power supply to output voltage to the second component according to the target voltage.

[0058] It should be noted that the second component is a component in the electronic device that needs voltage signal support to operate, such as a component with computing power, such as a central processing unit CPU (Central Processing Unit) or a graphics processing unit GPU (Graphics Processing Unit). The power supply is used to supply power for the operation of the second component in the electronic device. The second component sends a voltage control instruction to the power supply, such as an SVID (System V Interface Description) instruction, to notify the power supply to output the target voltage required by the second component. Therefore, in this embodiment, the state of the pin or interface between the second component and the power supply can be monitored, and then the voltage control instruction sent by the second component to the power supply can be obtained.

[0059] Step 102: Determine whether the noise reduction control condition is met. If the noise reduction control condition is met, execute step 103; if the noise reduction control condition is not met, execute step 104.

[0060] The noise reduction control condition is a scenario condition that requires noise reduction processing. For example, noise reduction is required in a scenario where the user is sensitive to the noise of the electronic device; for another example, noise reduction is required in a scenario where the electronic device needs low noise in a special place, etc. In this embodiment, the operating status of the electronic device and / or the environmental parameters of the environment in which it is located can be collected, and then the corresponding application scenario can be analyzed to determine whether the noise reduction control condition is met.

[0061] Step 103: Control the power supply to output voltage according to the first mode.

[0062] Among them, in the first mode, if the voltage control instruction is a boost type instruction, the power supply outputs voltage according to the target voltage, and if the voltage control instruction is a buck type instruction, the power supply outputs voltage according to the current voltage.

[0063] Specifically, in the first mode, the power supply can determine the instruction type of the voltage control instruction, that is, determine whether the voltage control instruction is a boost type instruction or a buck type instruction. If the voltage control instruction is a boost type instruction, the power supply outputs the voltage according to the target voltage to achieve the purpose of boosting the current voltage output by the power supply to the target voltage. If the voltage control instruction is a buck type instruction, the power supply continues to output the voltage according to the current voltage. At this time, the output voltage of the power supply remains unchanged.

[0064] Step 104: Control the power supply to output voltage according to the second mode.

[0065] Specifically, in the second mode, the power supply outputs voltage according to the target voltage. Specifically, in the second mode, the power supply does not need to judge the instruction type. After receiving the voltage control instruction, the power supply can directly output voltage according to the target voltage according to the instruction of the voltage control instruction to achieve the purpose of boosting, reducing or maintaining the voltage.

[0066] Specifically, in an electronic device powered by a power supply, there is a first component, such as a ceramic capacitor, which is excited by the voltage change of the power supply to generate noise. In this embodiment, in the first mode, the electronic device powered by the power supply generates the first noise, and in the second mode, the electronic device powered by the power supply generates the second noise. Since the voltage output by the power supply in the first mode is only boosted or maintained, and the voltage output by the power supply in the second mode is not only boosted or maintained, but also reduced, the voltage difference generated by the voltage output by the power supply in the first mode is obviously lower than the voltage difference generated by the voltage output by the power supply in the second mode. Therefore, the first noise generated by the electronic device in the first mode is less than or equal to the second noise generated by the electronic device in the second mode.

[0067] 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 application 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.

[0068] It can be seen from the above scheme that in a control method provided in Example 1 of the present application, after obtaining a voltage control instruction for indicating that the voltage is output according to the target voltage, it is determined whether the noise reduction control condition is met. If the noise reduction control condition is met, the power supply can be controlled to output the voltage according to the first mode. If the noise reduction control condition is not met, the power supply can be controlled to output the voltage according to the second mode. In the first mode, if the voltage control instruction is a boost type instruction, the power supply outputs the voltage according to the target voltage. If the voltage control instruction is a buck type instruction, the power supply outputs the voltage according to the current voltage. The difference is that in the second mode, no matter what type of instruction the voltage control instruction is, the power supply outputs the voltage according to the target voltage. Therefore, in the present application, the voltage output mode of the power supply is switched to reduce the voltage difference of the voltage output by the power supply to achieve the purpose of noise reduction.

[0069] In one implementation, the noise reduction control condition may be satisfied by: a target pin of a power chip connected to the power source is set to a high level.

[0070] Among them, the target pin is the pin set for the noise reduction function on the power chip, such as Figure 2 In this embodiment, when determining whether the noise reduction control condition is met, it can be determined whether the target pin on the power chip is set to a high position. If the target pin is set to a high position, it can be determined that the noise reduction condition is met. For example, if the ANS_EN pin is set to a high position, it can be determined that the noise reduction control condition is met at this time.

[0071] In one implementation, in this embodiment, the high or low position of the target pin is set by the following implementation, such as Figure 3 As shown in:

[0072] Step 301: monitor the operating state of the electronic device. If the electronic device is in a first operating state, execute step 302; if the electronic device is in another operating state, execute step 303.

[0073] The operating state may include a power consumption value of the electronic device and / or a temperature value of the electronic device. Specifically, the power consumption value of the electronic device may be a power consumption value of the second component, and the temperature value of the electronic device may be a temperature value of the second component. Based on this, in this embodiment, the current power consumption value and / or temperature value of the electronic device may be detected to monitor the operating state of the electronic device.

[0074] Step 302: Set the target pin to high.

[0075] Specifically, the first operating state is a state in which the power consumption value is greater than a first threshold or the temperature value is greater than a second threshold.

[0076] Step 303: Set the target pin to low.

[0077] That is to say, in this embodiment, when the power consumption value of the electronic device is too high or the temperature value is too high, it can be determined that the user is frequently using the electronic device, and the electronic device needs noise reduction at this time. Based on this, the target pin can be set to a high position. When the power consumption value of the electronic device is not high and the temperature value is not high, it can be determined that the user's demand for the electronic device is not high, and the electronic device can operate normally at this time. Based on this, the target pin can be set to a low position.

[0078] In another implementation, in this embodiment, the high position or low position of the target pin is set by the following implementation, such as Figure 4 As shown in:

[0079] Step 401: monitor the operating state of the electronic device. If the electronic device is in a first operating state, execute step 402; if the electronic device is in another operating state, execute step 403.

[0080] The operating state may include a power consumption value of the electronic device and / or a temperature value of the electronic device. Specifically, the power consumption value of the electronic device may be a power consumption value of the second component, and the temperature value of the electronic device may be a temperature value of the second component. Based on this, in this embodiment, the current power consumption value and / or temperature value of the electronic device may be detected to monitor the operating state of the electronic device.

[0081] Specifically, the first operating state is a state in which the power consumption value is greater than a first threshold or the temperature value is greater than a second threshold.

[0082] Step 402: monitor whether the first instruction is received. If the first instruction is received, execute step 404. If the first instruction is not received, return to execute step 402 to continue monitoring whether the first instruction is received.

[0083] The first instruction is an instruction to switch the target pin from a low position to a high position.

[0084] Step 403: Set the target pin to low.

[0085] Step 404: Set the target pin to high.

[0086] Step 405: When the target pin is set to a high position, monitor whether the second instruction is received. When the target pin is set to a high position and the second instruction is received, execute step 406. If the second instruction is not received, return to execute step 405 to continue monitoring whether the second instruction is received.

[0087] Step 406: Set the target pin to a low level, and return to step 403 until the electronic device enters another operating state from the first operating state.

[0088] The second instruction is an instruction to switch the target pin from a high position to a low position.

[0089] The first instruction and the second instruction are generated by the electronic device in sequence according to the preset time interval. The time interval here can be a preset duration value such as 10 seconds or 20 seconds. That is to say, when the electronic device is in the first operating state, it generates an instruction every time interval, and the instruction interval is the first instruction and the second instruction. When the electronic device is in the first operating state, the first instruction is generated first to indicate that the target pin is switched from a low position to a high position, and after a preset time interval, the second instruction is generated to indicate that the target pin is switched from a high position to a low position, and after a preset time interval, the first instruction is generated again to indicate that the target pin is switched from a low position to a high position, and so on, until the electronic device is in other operating states. If the electronic device enters the first operating state again, the electronic device can generate the first instruction again, and generate the second instruction after a preset time interval, and then generate the first instruction again after a preset time interval, and so on, until.

[0090] It should be noted that after the electronic device enters the first operating state, the first first instruction can be generated after a preset time interval, that is, starting from the time the electronic device enters the first operating state, the first instruction and the second instruction are generated in sequence according to the preset time interval.

[0091] For example, Figure 5As shown in , when the computer is at high temperature or has high power consumption, it first generates a first instruction after 10 seconds to instruct the target pin to be switched from low to high, and then generates a second instruction after 10 seconds to instruct the target pin to be switched from high to low, and then generates the first instruction again after 10 seconds to instruct the target pin to be switched from low to high, and so on, until the computer is in a low-level and low-power state, such as a sleep state. If the computer enters a high temperature or high-power consumption state again, the computer may generate the first instruction again, and generate the second instruction after 10 seconds, and then generate the first instruction again after 10 seconds, and so on.

[0092] Therefore, when the computer is in an application scenario where noise reduction is required, that is, in a scenario where the temperature is high or the power consumption is high, the target pin can be switched to a high or low position according to the instruction, that is, the noise reduction function can be turned on or off according to the instruction, thereby avoiding the high power consumption caused by the target pin being continuously in a high position and the power supply voltage continuing to increase.

[0093] In another implementation, the setting of the target pin can be implemented by the user through other controllers in the electronic device, such as EC (Embedded Controller) in a computer, etc. Figure 6 as shown in .

[0094] In one implementation, in the first mode, if the voltage control instruction is a boost type instruction, after the power supply outputs the voltage according to the target voltage, the power supply in this embodiment can also send a first signal to the electronic device, and the first signal enables the electronic device to determine the voltage signal of the target voltage output by the power supply.

[0095] Among them, the first signal can be an alert signal, which is used to notify the second component such as a CPU that the power supply has output voltage according to the target voltage required by the second component. Based on this, the second component determines that the voltage output by the power supply meets its own voltage requirements.

[0096] In the first mode, if the voltage control instruction is a step-down type instruction, after the power supply outputs the voltage according to the current voltage, the power supply in this embodiment can also send a second signal to the electronic device, and the second signal enables the electronic device to determine the voltage signal of the target voltage output by the power supply.

[0097] Among them, the second signal can be an alert signal, and the first signal is used to notify the second component such as the CPU: the power supply has output voltage according to the target voltage required by the second component. Thus, the second component can be deceived to determine that the voltage output by the power supply meets its own voltage requirements. Based on this, the second component can operate normally according to the required target voltage.

[0098] In one implementation, the first operating state may be a state where the power consumption value is greater than the first threshold or the temperature value is greater than the second threshold, that is, the first operating state is a non-sleeping state where the electronic device is operating normally, such as the CPU operating state in the C7 state; in addition, the electronic device may also have a second operating state, which is a state where the power consumption value is less than or equal to the first threshold and the temperature value is less than or equal to the second threshold, that is, the second operating state may be a low-power sleep state of the electronic device, such as the CPU idle state in the C9 / C10 state. It can be seen that the voltage output by the power supply in the first operating state is higher than the voltage output by the power supply in the second operating state.

[0099] Based on this, in this embodiment, a waiting time of the electronic device can also be set for the electronic device, and the waiting time is the time the electronic device waits in the first operating state to enter the second operating state, so that the electronic device enters the second operating state if there is no other input operation after waiting in the first operating state for a waiting time greater than or equal to the third threshold. Figure 7 As shown in the figure, after the electronic device is awakened from the second operating state such as the sleep state and enters the first operating state such as the normal operating state, the electronic device monitors the input operation and waits for a preset 30 milliseconds after monitoring the input operation. If there is still no new input operation, the electronic device enters the second operating state again. That is to say, in this embodiment, by extending the waiting time for entering the second operating state, the frequency of the power supply switching from high voltage to low voltage is reduced, thereby avoiding frequent switching of high and low voltages, thereby reducing the number of times there is a voltage difference on the first component, thereby achieving the purpose of reducing noise.

[0100] Specifically, the waiting time set in this embodiment can modify the operation setting according to the time received by the electronic device. For example, the user sets the waiting time of 30 milliseconds in the BIOS of the computer, and the BIOS writes the value of 30 milliseconds into the CPU, so that the CPU continues to wait for new input operations for 30 milliseconds after being awakened before entering the sleep state. If a new input operation occurs during the 30 millisecond waiting period, the CPU will reset the time and wait for 30 milliseconds again, thereby reducing the frequency of the CPU entering the sleep state within a certain period of time, thereby reducing the frequency of the power supply switching from high voltage to low voltage, thereby avoiding frequent high and low voltage switching of the voltage, thereby reducing the number of times the voltage difference exists on the ceramic capacitor, thereby achieving the purpose of reducing noise.

[0101] refer to Figure 8 , which is a structural schematic diagram of a control device provided in Example 2 of the present application. The device can be applicable to electronic devices with a power supply, such as mobile phones, pads or notebooks. In the electronic device, the power supply supplies power to the electronic device under the instruction of the electronic device.

[0102] Specifically, the control device in this embodiment may include the following structure:

[0103] The instruction receiver 801 is used to obtain a voltage control instruction, where the voltage control instruction is used to instruct the power supply to output voltage according to a target voltage;

[0104] The controller 802 is used to control the power supply to output voltage according to the first mode when the noise reduction control condition is met; and to control the power supply to output voltage according to the second mode when the noise reduction control condition is not met;

[0105] Wherein, in the first mode, if the voltage control instruction is a boost type instruction, the power supply outputs voltage according to the target voltage, and if the voltage control instruction is a buck type instruction, the power supply outputs voltage according to the current voltage; in the second mode, the power supply outputs voltage according to the target voltage;

[0106] Wherein, in the electronic device powered by the power supply, there is a first component, the first component is excited by the voltage change of the power supply to generate noise, and in the first mode, the electronic device powered by the power supply generates the first noise, and in the second mode, the electronic device powered by the power supply generates the second noise;

[0107] The first noise is less than or equal to the second noise.

[0108] It can be seen from the above scheme that in a control device provided in Example 2 of the present application, after obtaining a voltage control instruction for indicating that the voltage is output according to the target voltage, it is determined whether the noise reduction control condition is met. If the noise reduction control condition is met, the power supply can be controlled to output the voltage according to the first mode. If the noise reduction control condition is not met, the power supply can be controlled to output the voltage according to the second mode. In the first mode, if the voltage control instruction is a boost type instruction, the power supply outputs the voltage according to the target voltage. If the voltage control instruction is a buck type instruction, the power supply outputs the voltage according to the current voltage. The difference is that in the second mode, no matter what type of instruction the voltage control instruction is, the power supply outputs the voltage according to the target voltage. Therefore, in the present application, the voltage output mode of the power supply is switched to reduce the voltage difference of the voltage output by the power supply to achieve the purpose of noise reduction.

[0109] In one implementation, the noise reduction control condition is met, including: a target pin of a power chip connected to the power supply is set to a high level.

[0110] Based on the above implementation, this embodiment sets the target pin by monitoring the operating state of the electronic device. For example, if the electronic device is in the first operating state, the target pin is set to a high position; the first operating state is: the power consumption value is greater than the first threshold value or the temperature value is greater than the second threshold value. Alternatively, if the electronic device is in the first operating state and receives a first instruction, the target pin is set to a high position; if the target pin is set to a high position and receives a second instruction, the target pin is set to a low position; the first operating state is: the power consumption value is greater than the first threshold value or the temperature value is greater than the second threshold value.

[0111] Optionally, the first instruction and the second instruction are generated sequentially by the electronic device at preset time intervals.

[0112] In one implementation, in the first mode, if the voltage control instruction is a boost type instruction, after the power supply outputs the voltage according to the target voltage, the controller 802 may further send a first signal to the electronic device, wherein the first signal enables the electronic device to determine that the power supply outputs a voltage signal of the target voltage;

[0113] Among them, in the first mode, if the voltage control instruction is a step-down type instruction, after the power supply outputs the voltage according to the current voltage, the controller 802 can also send a second signal to the electronic device, and the second signal enables the electronic device to determine that the power supply outputs a voltage signal of the target voltage.

[0114] In one implementation, the electronic device in this embodiment has a set waiting time, and the waiting time is greater than or equal to a third threshold; the waiting time is the time the electronic device waits to enter the second operating state in the first operating state; the second operating state is: the power consumption value is less than or equal to the first threshold and the temperature value is less than or equal to the second threshold.

[0115] Optionally, the waiting time is modified according to the time modification operation setting received by the electronic device.

[0116] 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.

[0117] refer to Fig. 9 , is a structural diagram of an electronic device provided in Example 3 of the present application, and the electronic device may be a mobile phone, a pad, a notebook or other device.

[0118] In this embodiment, the electronic device may include the following structure:

[0119] The power supply 901 is used to output a voltage to supply power to the electronic device.

[0120] The first component 902 is excited by the voltage change of the power supply 901 to generate noise, such as a ceramic capacitor or other components.

[0121] The second component 903 may be a component with computing capability, such as a CPU or a GPU.

[0122] The power controller 904, such as a power chip, is used to obtain a voltage control instruction, and the voltage control instruction is used to instruct the power supply 901 to output a voltage according to a target voltage; when the noise reduction control condition is met, the power supply 901 is controlled to output a voltage according to a first mode; when the noise reduction control condition is not met, the power supply 901 is controlled to output a voltage according to a second mode;

[0123] In the first mode, if the voltage control instruction is a boost type instruction, the power supply 901 outputs the voltage according to the target voltage, and then the power supply controller 904 sends a first signal to the second component 903, so that the electronic device determines that the power supply 901 outputs the voltage signal of the target voltage; if the voltage control instruction is a step-down type instruction, the power supply 901 outputs the voltage according to the current voltage; in the second mode, the power supply 901 outputs the voltage according to the target voltage, and then the power supply controller 904 sends a second signal to the second component 903, so that the electronic device determines that the power supply 901 outputs the voltage signal of the target voltage;

[0124] Furthermore, in the first mode, the electronic device powered by the power supply generates a first noise, and in the second mode, the electronic device powered by the power supply generates a second noise;

[0125] The first noise is less than or equal to the second noise.

[0126] In addition, the electronic device may also include components such as a memory, and the memory is used to store an application program so that the second component 903 can run the application program under the support of the output voltage of the power supply 901 to achieve the corresponding function. The memory may include a non-permanent memory in a computer-readable medium, a random access memory (RAM) and / or a non-volatile memory, such as a read-only memory (ROM) or a flash RAM, and the memory includes at least one storage chip.

[0127] The second component 903 sends a voltage control instruction, such as an SVID instruction, to the power supply 901 to notify the power supply 901 to output the target voltage required by the second component 903 .

[0128] It can be seen from the above scheme that in an electronic device provided in Example 3 of the present application, after obtaining a voltage control instruction for indicating that the voltage is output according to the target voltage, it is determined whether the noise reduction control condition is met. If the noise reduction control condition is met, the power supply can be controlled to output the voltage according to the first mode. If the noise reduction control condition is not met, the power supply can be controlled to output the voltage according to the second mode. In the first mode, if the voltage control instruction is a boost type instruction, the power supply outputs the voltage according to the target voltage. If the voltage control instruction is a buck type instruction, the power supply outputs the voltage according to the current voltage. The difference is that in the second mode, no matter what type of instruction the voltage control instruction is, the power supply outputs the voltage according to the target voltage. Therefore, in the present application, the voltage output mode of the power supply is switched to reduce the voltage difference of the voltage output by the power supply to achieve the purpose of noise reduction.

[0129] Taking the electronic device as a computer as an example, the technical solution in this application is described in detail below:

[0130] Firstly, the technical solution of the present application performs selective instruction bypass (Bypass) by controlling the VID DOWN command in the SVID instruction of the CPU, that is, only executing the VID UP command, while "deceiving" the CPU that VID DWON has been executed, so that the output voltage of the power supply is always maintained at a high voltage level, reducing the switching frequency of high and low voltage levels, reducing the voltage difference ΔV at the two poles of the ceramic capacitor, thereby reducing the vibration amplitude at both ends 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.

[0131] Combination Fig.10 As shown in the circuit architecture diagram, the CPU sends an SVID instruction to the power chip so that the power chip controls the power supply to output the corresponding voltage. In this process, when the power supply is working normally, that is, in the second mode, the power supply will increase or decrease the voltage according to the VID instruction issued by the CPU. In the IDLE state, that is, in the first mode, the new power chip adds a "control VID" function pin. When the Enable PIN (i.e., pin ANS_EN) is low, the power chip executes according to the VIDUP or VID DOWN issued by the CPU. Every time a data is completed, the power chip will send an Alert signal to the CPU to notify the CPU that the VID instruction has been executed.

[0132] When the Enable PIN is high, the power chip will only execute the VID Up instruction and refuse to execute the VID DOWN instruction. After completing each data, the power chip will also synchronously send an Alert signal to the CPU to "cheat" the CPU that the VID instruction has been executed.

[0133] Therefore, when the noise reduction function is turned on, the output voltage level of the power chip is always maintained at a high level and will not drop to a low voltage level. Fig.11 This reduces the voltage difference ΔV between the two electrodes of the ceramic capacitor, thereby reducing the vibration amplitude at both ends of the ceramic capacitor MLCC, and then reducing the resonance amplitude of the entire motherboard, achieving a significant reduction in the sound intensity level of audio noise.

[0134] Specifically, Fig.12 As shown in the process, after the computer is turned on, the EC starts the noise reduction function by setting the pin ANS_EN high. After that, the EC detects whether the computer's system power consumption is greater than 5W or the CPU temperature is greater than 45 degrees. If so, the EC sends enable high and enable low instructions at a fixed frequency of 10 seconds per cycle, so that the power chip periodically turns on or off the noise reduction function at a frequency of 10 seconds. If not, the EC notifies the power chip to turn off the noise reduction function.

[0135] like Fig.13 and Fig.14 As shown in the figure, it is an example of noise when the pin ANS_EN is switched to a low position, that is, the noise reduction function is not turned on. It can be seen that when the voltage signal is 16kHz, the noise generated is particularly obvious, reaching 35.8dB. The indexes of sound pressure spl, loudness tone, deviation Tone_to_noise, Modulation and Sharpness all exceed the standard. Fig.14 The framed area.

[0136] like Fig.15 and Fig.16 As shown in the figure, this is an example of noise when the pin ANS_EN is switched to a high position, that is, the noise reduction function is turned on. It can be seen that when the voltage signal is 16kHz, the noise reduction effect is particularly obvious, and has been reduced to 12.4dB. There is an exponential reduction in indicators such as sound pressure spl, loudness tone, deviation Tone_to_noise, Modulation and Sharpness.

[0137] Furthermore, the technical solution of the present application introduces two parameters, "power consumption" and "CPU temperature", into the system as the switching conditions for dynamically switching the Enable PIN high and low. For example, in the case of high power consumption or high CPU temperature, the noise reduction function is switched on and off at a fixed time to avoid excessive power consumption. In the high power consumption state, it indicates that the user is using the computer, and the noise reduction function needs to be turned on at this time. Therefore, it is necessary to set pin 13, i.e., pin ANS_EN, to a high position, such as Fig.17As shown in , EC enables pin 13 through IC_EN, and other pins continue to be in their respective states and are not affected by pin 13. In order to reduce power consumption, it is necessary to switch pin ANS_EN to a low state after maintaining a high state for a period of time, and so on.

[0138] In addition, the technical solution of the present application can adjust the output of the power supply at different voltage levels when the CPU is in the C9 / C10 state, so that the power supply output is maintained at a high voltage level, the switching frequency of high and low voltage levels is reduced, and the voltage difference ΔV between the two poles of the ceramic capacitor is reduced, 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.

[0139] Specifically, when the power chip is working normally, in the IDLE state, the operating system will periodically wake up the CPU working voltage after communicating with the CPU, in order to quickly respond to the operation and processing of various software. In the standby state, since various software needs to be woken up at any time in the background, the CPU output voltage must be frequently switched, and the voltage level changes dynamically from 0V to 1.6V, such as Fig.18 As shown in , the frequency is determined by how long the CPU stays in the C9 / C10 state.

[0140] In order to reduce the frequency of the above voltage level changes, the technical solution of the present application can set different wake-up times for VCCIN DEMOTION, which can successfully avoid the voltage switching of the CPU in the C9 / C10 state. Fig.19 As shown in the figure, after the computer is turned on, the computer starts in the default state, that is, it is awakened with the default waiting time of 10 milliseconds. After the delayer starts timing, it notifies the BIOS after a delay of 10 seconds, and the BIOS modifies the CPU VCCIN DEMOTION to 30 milliseconds (of course, it can also be other time lengths). Thus, the waiting time after being awakened is extended from 10 milliseconds to 30 milliseconds, thereby avoiding frequent switching of voltage levels, thereby avoiding the situation of large noise caused by excessively frequent voltage difference transformation.

[0141] like Fig. 20 As shown in , the power supply is the state of the CPU output voltage when the waiting time is not extended. Based on this, Fig.21 As shown in the figure, the computer has exceeded the index in the indicators of sound pressure spl, loudness tone, deviation Tone_to_noise, Modulation and sharpness. Fig.21 The framed area.

[0142] like Fig. 22As shown in , when the waiting time is extended to 30 milliseconds, the power supply is the state of the CPU output voltage. Based on this, Fig.23 As shown in the figure, the computer has an exponential decrease in indicators such as sound pressure spl, loudness tone, deviation Tone_to_noise, proportion Modulation and sharpness.

[0143] In summary, the technical solution of the present application can significantly improve the serious audio noise problem of laptop computers during operation, and can remain unchanged in terms of the power supply vibration cycle and frequency, and has no effect on the power supply output efficiency, thereby having no effect on the notebook performance and battery life.

[0144] 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.

[0145] 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.

[0146] 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.

[0147] 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: Obtaining a voltage control instruction, wherein the voltage control instruction is used to instruct the power supply to output a voltage according to a target voltage; When the noise reduction control condition is met, controlling the power supply to output voltage in a first mode or in a second mode according to an operating state of the electronic device, wherein the operating state includes at least one of power consumption, temperature, working state of the electronic device, and the environment in which the electronic device is located; When the noise reduction control condition is not met, controlling the power supply to output voltage according to a second mode; Wherein, in the first mode, if the voltage control instruction is a boost type instruction, the power supply outputs voltage according to the target voltage, and if the voltage control instruction is a buck type instruction, the power supply outputs voltage according to the current voltage; in the second mode, the power supply outputs voltage according to the target voltage; Wherein, in the electronic device powered by the power supply, there is a first component, the first component is excited by the voltage change of the power supply to generate noise, and, in the first mode, the electronic device powered by the power supply generates the first noise, and in the second mode, the electronic device powered by the power supply generates the second noise; The first noise is less than or equal to the second noise.

2. The method according to claim 1, wherein the noise reduction control condition is satisfied, comprising: The target pin of the power chip connected to the power source is set high.

3. The method according to claim 2, further comprising: Monitoring the operating status of the electronic device; If the electronic device is in a first operating state, setting the target pin to a high position; The first operating state is a state in which the power consumption value is greater than a first threshold or the temperature value is greater than a second threshold.

4. The method according to claim 2, further comprising: Monitoring the operating status of the electronic device; If the electronic device is in a first operating state and receives a first instruction, setting the target pin to a high level; When the target pin is set to a high level and a second instruction is received, setting the target pin to a low level; The first operating state is a state in which the power consumption value is greater than a first threshold or the temperature value is greater than a second threshold. 5 . The method according to claim 4 , wherein the first instruction and the second instruction are generated sequentially by the electronic device at preset time intervals.

6. The method according to claim 1 or 2, wherein in the first mode, if the voltage control instruction is a boost type instruction, after the power supply outputs the voltage according to the target voltage, the method further comprises: Sending a first signal to the electronic device, wherein the first signal enables the electronic device to determine that the power supply outputs a voltage signal of the target voltage; Wherein, in the first mode, if the voltage control instruction is a step-down type instruction, after the power supply outputs the voltage according to the current voltage, the method further includes: A second signal is sent to the electronic device, wherein the second signal enables the electronic device to determine that the power supply outputs a voltage signal of the target voltage.

7. The method according to claim 4, wherein the electronic device has a set waiting time, and the waiting time is greater than or equal to a third threshold; the waiting time is the time the electronic device waits in the first operating state to enter the second operating state; The second operating state is a state in which the power consumption value is less than or equal to the first threshold and the temperature value is less than or equal to the second threshold.

8. The method according to claim 7, wherein the waiting time is modified according to the time received by the electronic device.

9. A control device comprising: An instruction receiver, used to obtain a voltage control instruction, wherein the voltage control instruction is used to instruct the power supply to output a voltage according to a target voltage; A controller, configured to control the power supply to output voltage in a first mode or in a second mode according to an operating state of the electronic device when a noise reduction control condition is met, wherein the operating state includes at least one of power consumption, temperature, working state of the electronic device, and the environment in which the electronic device is located; and to control the power supply to output voltage in the second mode when the noise reduction control condition is not met; Wherein, in the first mode, if the voltage control instruction is a boost type instruction, the power supply outputs voltage according to the target voltage, and if the voltage control instruction is a buck type instruction, the power supply outputs voltage according to the current voltage; in the second mode, the power supply outputs voltage according to the target voltage; Wherein, in the electronic device powered by the power supply, there is a first component, the first component is excited by the voltage change of the power supply to generate noise, and, in the first mode, the electronic device powered by the power supply generates the first noise, and in the second mode, the electronic device powered by the power supply generates the second noise; The first noise is less than or equal to the second noise.

10. An electronic device comprising: power supply; A first component, which is excited by the voltage variation of the power supply to generate noise; A power supply controller, used to obtain a voltage control instruction, wherein the voltage control instruction is used to instruct the power supply to output a voltage according to a target voltage; When the noise reduction control condition is met, the power supply is controlled to output voltage in a first mode or in a second mode according to the operating state of the electronic device, wherein the operating state includes at least one of power consumption, temperature, the working state of the electronic device, and the environment in which the electronic device is located; when the noise reduction control condition is not met, the power supply is controlled to output voltage in the second mode; Wherein, in the first mode, if the voltage control instruction is a boost type instruction, the power supply outputs voltage according to the target voltage, and if the voltage control instruction is a buck type instruction, the power supply outputs voltage according to the current voltage; in the second mode, the power supply outputs voltage according to the target voltage; Furthermore, in the first mode, the electronic device powered by the power supply generates a first noise, and in the second mode, the electronic device powered by the power supply generates a second noise; The first noise is less than or equal to the second noise.

Images