Capacitor vibration control device and method and electronic equipment

Abstract

The invention relates to the technical field of terminal equipment, in particular to a capacitor vibration control device and method and electronic equipment. The capacitor vibration control device comprises a control unit, a detection unit and a target capacitor, and the detection unit is configured to detect the target capacitor to obtain a detection result corresponding to the target capacitor. The control unit is configured to adjust a vibration state of the target capacitor based on a detection result of the detection unit. Therefore, the target capacitor can be detected by using the detection unit, so that the vibration state of the target capacitor can be conveniently monitored. The control unit can adjust the target capacitor according to the detection result of the detection unit to prevent the vibration amplitude of the target capacitor from being too large, so that the vibration noise of the target capacitor can be reduced, the vibration amplitude of other parts connected with the target capacitor driven by the target capacitor is reduced, the user experience is improved, and the user experience is improved. And the reliability of the target capacitor and the circuit structure where the target capacitor is located can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of terminal device, and in particular, to a capacitor vibration control device and method, and an electronic device. BACKGROUND

[0002] Currently, a radio frequency circuit is usually arranged in an electronic device to support the wireless communication function of the electronic device. In the working process of the radio frequency circuit, the capacitor in the radio frequency circuit will generate a relatively serious vibration and a vibration noise.

[0003] In the electronic device, the capacitor in the radio frequency circuit is usually arranged on a circuit board in the electronic device. When the capacitor generates vibration, the capacitor will transmit the vibration to the circuit board, causing the circuit board to vibrate and making the vibration noise larger, which affects the user experience. SUMMARY

[0004] To solve the above problems, the present application provides a capacitor vibration control device and method, and an electronic device, which can control the capacitor vibration, thereby reducing the circuit board vibration and vibration noise caused by the capacitor vibration, to improve the user experience.

[0005] To achieve the above purpose, in a first aspect, the present application provides a capacitor vibration control device, comprising: a control unit, a detection unit and a target capacitor; the control unit is connected with the detection unit; the control unit is configured to control the detection unit to detect; the detection unit is configured to detect the target capacitor to obtain a detection result corresponding to the target capacitor, wherein the target capacitor is arranged adjacent to the detection unit; and the control unit is further configured to adjust the vibration state of the target capacitor based on the detection result.

[0006] In the embodiment, the detection unit is configured to detect the target capacitor to obtain a detection result corresponding to the target capacitor. The control unit is configured to adjust the vibration state of the target capacitor based on the detection result of the detection unit. In this way, the detection of the target capacitor can be realized by using the detection unit, thereby facilitating the monitoring of the vibration state of the target capacitor. The control unit can adjust the target capacitor according to the detection result of the detection unit to avoid the vibration amplitude of the target capacitor being too large, thereby reducing the vibration noise of the target capacitor and reducing the vibration amplitude of other components connected with the target capacitor, improving the user experience, and improving the reliability of the target capacitor and the circuit structure where the target capacitor is located.

[0007] In an optional implementation, the detection unit is further configured to detect the vibration state of the target capacitor to obtain a detection result, the detection result including an amplitude and a vibration period of the target capacitor; and the control unit is further configured to reduce the voltage difference across the target capacitor to reduce the vibration of the target capacitor, when the vibration period of the target capacitor meets a preset period range and the amplitude of the target capacitor meets a preset amplitude range. In this way, the control unit can determine whether the vibration of the target capacitor needs to be adjusted according to the amplitude and the vibration period in the detection result. Meanwhile, when the vibration period of the target capacitor meets the preset period range and the amplitude of the target capacitor meets the preset amplitude range, the control unit can reduce the voltage difference across the target capacitor to reduce the vibration of the target capacitor.

[0008] In an optional implementation, the detection unit is further configured to detect the voltage difference across the target capacitor to obtain a detection result, the detection result including the voltage difference across the target capacitor and a change period of the voltage difference across the target capacitor; and the control unit is further configured to reduce the voltage difference across the target capacitor to reduce the vibration of the target capacitor, when the change period of the voltage difference across the target capacitor meets a preset period range and the voltage difference across the target capacitor meets a preset pressure difference range. In this way, the control unit can determine whether the vibration of the target capacitor needs to be adjusted according to the voltage difference across the target capacitor and the change period of the voltage difference in the detection result. Meanwhile, when the change period of the voltage difference across the target capacitor meets the preset period range and the voltage difference across the target capacitor meets the preset pressure difference range, the control unit can reduce the voltage difference across the target capacitor to reduce the vibration of the target capacitor.

[0009] In an optional implementation, the radio frequency circuit; the target capacitor is arranged in the radio frequency circuit; and the control unit is further configured to adjust a working parameter of the radio frequency circuit to reduce the voltage difference across the target capacitor. In this way, when the target capacitor is in the radio frequency circuit, the control unit can reduce the voltage difference across the target capacitor by adjusting the working parameter of the radio frequency circuit to reduce the vibration of the target capacitor.

[0010] In an optional implementation, the radio frequency circuit includes a power amplifier; the power amplifier is connected with the target capacitor; and the control unit is further configured to reduce the working power of the power amplifier to reduce the voltage difference across the target capacitor. When the working power of the power amplifier is reduced, the working voltage and the working current required by the power amplifier will also decrease. In this way, the voltage output to the power amplifier can be reduced, so as to reduce the voltage difference across the target capacitor to reduce the vibration of the target capacitor.

[0011] In an optional implementation, the radio frequency circuit includes a power supply; the power supply is connected to the target capacitor; the power supply is configured to output a first voltage to the target capacitor; and the control unit is further configured to reduce a fluctuation amplitude of the first voltage of the power supply, so as to reduce a voltage difference across the target capacitor. In this way, the fluctuation amplitude of the first voltage of the power supply can be directly reduced, so as to reduce the voltage difference across the target capacitor, thereby reducing the vibration of the target capacitor.

[0012] In an optional implementation, the control mode of the power supply includes a pulse frequency modulation (PFM) mode and a pulse width modulation (PWM) mode, and a fluctuation amplitude of the first voltage of the power supply in the PFM mode is greater than a fluctuation amplitude of the first voltage of the power supply in the PWM mode; and the control unit is further configured to adjust the control mode of the power supply from the PFM mode to the PWM mode, so as to reduce the fluctuation amplitude of the first voltage of the power supply. In this way, the fluctuation amplitude of the first voltage of the power supply can be reduced by adjusting the control mode of the power supply, so as to reduce the voltage difference across the target capacitor, thereby reducing the vibration of the target capacitor.

[0013] In an optional implementation, the first voltage of the power supply includes a high level and a low level, and the high level and the low level periodically alternate; and the control unit is further configured to increase the low level, so as to reduce the fluctuation amplitude of the first voltage of the power supply. In this way, the voltage difference between the high level and the low level of the first voltage of the power supply can be reduced, so as to reduce the fluctuation amplitude of the first voltage of the power supply, thereby reducing the voltage difference across the target capacitor, and reducing the vibration of the target capacitor.

[0014] In an optional implementation, the first voltage of the power supply includes a high level and a low level, and the high level and the low level periodically alternate; and the control unit is further configured to control the first voltage of the power supply to remain at the high level, so as to reduce the fluctuation amplitude of the first voltage of the power supply. In this way, the voltage difference between the high level and the low level of the first voltage of the power supply can be reduced, so as to reduce the fluctuation amplitude of the first voltage of the power supply, thereby reducing the voltage difference across the target capacitor, and reducing the vibration of the target capacitor.

[0015] In an optional implementation, the first voltage of the power supply is high when the power supply is in the running mode, and the first voltage of the power supply is low when the power supply is in the non-running mode; the control unit is further configured to: call the target interface, adjust the power supply from the state of periodically alternating between the running mode and the non-running mode to the state of keeping the running mode, keep the first voltage of the power supply as high, and reduce the fluctuation range of the first voltage of the power supply. In this way, the fluctuation range of the first voltage of the power supply can be reduced by adjusting the working mode of the power supply, so that the power supply always keeps high output, thereby reducing the voltage difference across the target capacitor and reducing the vibration of the target capacitor.

[0016] In an optional implementation, the circuit board, the radio frequency circuit is integrated into the circuit board, and the target capacitor is arranged on the circuit board; the detection unit includes a motion sensor; the motion sensor is arranged on the circuit board; and the motion sensor is configured to detect the vibration state of the circuit board to obtain the vibration state of the target capacitor. When the target capacitor is arranged on the circuit board, the vibration is transmitted to the circuit board. In this way, the motion sensor is arranged on the circuit board, and the vibration state of the target capacitor can be obtained by detecting the vibration state of the circuit board.

[0017] In an optional implementation, the detection unit includes an audio sensor; the audio sensor is arranged adjacent to the target capacitor; and the audio sensor is configured to detect the vibration sound of the target capacitor to obtain the vibration state of the target capacitor based on the vibration sound. The target capacitor generates corresponding vibration sound waves when it vibrates. In this way, the vibration sound of the target capacitor can be detected by the audio sensor, and the vibration state of the target capacitor can be obtained based on the vibration sound.

[0018] In an optional implementation, the detection unit includes a digital-to-analog converter; the digital-to-analog converter is connected to the target capacitor; and the digital-to-analog converter is configured to detect the voltage difference across the target capacitor. In this way, the voltage difference across the target capacitor can be directly detected by the digital-to-analog converter.

[0019] In an optional implementation, the control unit is further configured to control the detection unit to detect the target capacitor when the electronic device is in the receiver call mode. In this way, the vibration of the target capacitor can be controlled in the receiver call mode to avoid the vibration noise of the target capacitor affecting the call experience of the user.

[0020] In an optional implementation, the control unit is further configured to determine that the electronic device is in the earpiece call mode based on at least one of the following: detecting that at least one mobile communication antenna of the electronic device is in an active state, receiving a broadcast that the electronic device enters a call state, detecting, by a proximity light sensor of the electronic device, that a human body is close, and detecting that a receiver of the electronic device is in an active state. In this way, it can be determined that the electronic device is in the earpiece call mode.

[0021] To achieve the above object, in a second aspect, the application provides a capacitive vibration control method applied to an electronic device, comprising: detecting, by the electronic device, a target capacitor based on a detection unit, to obtain a detection result corresponding to the target capacitor; and adjusting, by the electronic device, a vibration state of the target capacitor based on a control unit according to the detection result.

[0022] In this embodiment, the target capacitor vibrates when a circuit in which the target capacitor is located is working. In order to avoid the target capacitor vibrating too much, causing large noise and affecting the normal work of the circuit board, the electronic device can monitor the target capacitor by setting the detection unit and the control unit. Specifically, the electronic device can detect the target capacitor by using the detection unit. In this way, the electronic device can control the vibration of the target capacitor by using the control unit in the case that the target capacitor vibrates too much, so as to reduce the vibration noise of the target capacitor and the vibration of the circuit board, thereby improving the user experience.

[0023] In an optional implementation, the electronic device detects the target capacitor based on the detection unit to obtain a detection result corresponding to the target capacitor, comprising: detecting, by the detection unit, a vibration state of the target capacitor to obtain the detection result, the detection result comprising an amplitude and a vibration period of the target capacitor; and the electronic device adjusts the vibration state of the target capacitor based on the control unit according to the detection result, comprising: the control unit reduces a voltage difference between two ends of the target capacitor to reduce the vibration of the target capacitor in the case that the vibration period of the target capacitor satisfies a preset period range and the amplitude of the target capacitor satisfies a preset amplitude range. In this way, the control unit can determine whether to adjust the vibration of the target capacitor according to the amplitude and the vibration period in the detection result. Meanwhile, in the case that the vibration period of the target capacitor satisfies the preset period range and the amplitude of the target capacitor satisfies the preset amplitude range, the control unit can reduce the voltage difference between the two ends of the target capacitor to reduce the vibration of the target capacitor.

[0024] In an optional implementation, the electronic device detects the target capacitor based on the detection unit to obtain a detection result corresponding to the target capacitor, including: the detection unit detects a voltage difference between two ends of the target capacitor to obtain the detection result, and the detection result includes the voltage difference between the two ends of the target capacitor and a change period of the voltage difference between the two ends of the target capacitor; and the electronic device adjusts the vibration state of the target capacitor based on the control unit according to the detection result, including: the control unit reduces the voltage difference between the two ends of the target capacitor to reduce the vibration of the target capacitor, when the change period of the voltage difference between the two ends of the target capacitor meets a preset period range and the voltage difference between the two ends of the target capacitor meets a preset voltage difference range. In this way, the control unit can determine whether the vibration of the target capacitor needs to be adjusted according to the voltage difference between the two ends of the target capacitor in the detection result and the change period of the voltage difference. At the same time, when the change period of the voltage difference between the two ends of the target capacitor meets the preset period range and the voltage difference between the two ends of the target capacitor meets the preset voltage difference range, the control unit can reduce the vibration of the target capacitor by reducing the voltage difference between the two ends of the target capacitor.

[0025] In an optional implementation, the control unit adjusts the working parameter of the radio frequency circuit to reduce the voltage difference between the two ends of the target capacitor. In this way, when the target capacitor is in the radio frequency circuit, the control unit can reduce the vibration of the target capacitor by adjusting the working parameter of the radio frequency circuit to reduce the voltage difference between the two ends of the target capacitor.

[0026] In an optional implementation, the control unit adjusts the working parameter of the radio frequency circuit, including: the control unit reduces the working power of the power amplifier based on the radio frequency circuit. When the working power of the power amplifier is reduced, the working voltage and the working current required by the power amplifier will decrease. In this way, the voltage output to the power amplifier can be reduced, thereby reducing the voltage difference between the two ends of the target capacitor to reduce the vibration of the target capacitor.

[0027] In an optional implementation, the control unit adjusts the working parameter of the radio frequency circuit, including: the control unit reduces the fluctuation amplitude of the first voltage output by the power supply based on the radio frequency circuit. In this way, the fluctuation amplitude of the first voltage of the power supply can be directly reduced, thereby the voltage difference between the two ends of the target capacitor can be reduced to reduce the vibration of the target capacitor.

[0028] In an optional implementation, the control unit reduces the fluctuation amplitude of the first voltage output by the power supply based on the radio frequency circuit, including: the control unit adjusts the control mode of the power supply from a pulse frequency modulation (PFM) mode to a pulse width modulation (PWM) mode; wherein the fluctuation amplitude of the first voltage of the power supply in the PFM mode is greater than the fluctuation amplitude of the first voltage of the power supply in the PWM mode. In this way, the fluctuation amplitude of the first voltage of the power supply can be reduced by adjusting the control mode of the power supply, so as to reduce the voltage difference across the target capacitor and reduce the vibration of the target capacitor.

[0029] In an optional implementation, the first voltage of the power supply includes a high level and a low level, and the high level and the low level periodically alternate; the control unit reduces the fluctuation amplitude of the first voltage of the power supply based on the radio frequency circuit, including: the control unit increases the low level. In this way, the voltage difference between the high level and the low level of the first voltage of the power supply can be reduced to reduce the fluctuation amplitude of the first voltage of the power supply, so as to reduce the voltage difference across the target capacitor and reduce the vibration of the target capacitor.

[0030] In an optional implementation, the first voltage of the power supply includes a high level and a low level, and the high level and the low level periodically alternate; the control unit reduces the fluctuation amplitude of the first voltage of the power supply based on the radio frequency circuit, including: the control unit controls the first voltage of the power supply to remain at the high level. In this way, the voltage difference between the high level and the low level of the first voltage of the power supply can be reduced to reduce the fluctuation amplitude of the first voltage of the power supply, so as to reduce the voltage difference across the target capacitor and reduce the vibration of the target capacitor.

[0031] In an optional implementation, when the power supply is in a running mode, the first voltage of the power supply is at a high level; when the power supply is in a non-running mode, the first voltage of the power supply is at a low level; the control unit controls the first voltage of the power supply to remain at the high level, including: the control unit calls a target interface to adjust the power supply from a state of periodically alternating between the running mode and the non-running mode to a state of keeping the running mode, so as to keep the first voltage of the power supply at the high level. In this way, the first voltage of the power supply can always be kept at the high level by adjusting the working mode of the power supply, so as to reduce the fluctuation amplitude of the first voltage of the power supply, thereby reducing the voltage difference across the target capacitor and reducing the vibration of the target capacitor.

[0032] In an optional implementation, the detection unit detects the vibration state of the target capacitor, including: the detection unit detects the vibration state of the circuit board based on the motion sensor detection circuit, to obtain the vibration state of the target capacitor. When the target capacitor is arranged on the circuit board, the target capacitor will transmit the vibration to the circuit board. In this way, the motion sensor is arranged on the circuit board, and the vibration state of the target capacitor can be obtained by detecting the vibration state of the circuit board.

[0033] In an optional implementation, the detection unit detects the vibration state of the target capacitor, including: the detection unit detects the vibration sound of the target capacitor based on the audio sensor, to obtain the vibration state of the target capacitor based on the vibration sound. When the target capacitor vibrates, the target capacitor will generate corresponding vibration sound waves. In this way, the audio sensor can be used to detect the vibration sound of the target capacitor, and the vibration state of the target capacitor can be obtained based on the vibration sound.

[0034] In an optional implementation, the detection unit detects the voltage difference between the two ends of the target capacitor, including: the detection unit detects the voltage difference between the two ends of the target capacitor based on the digital-to-analog converter. In this way, the digital-to-analog converter can be used to directly detect the voltage difference between the two ends of the target capacitor.

[0035] In an optional implementation, before the electronic device detects the target capacitor based on the detection unit to obtain the detection result corresponding to the target capacitor, the method further includes: the control unit controls the detection unit to detect the target capacitor when the electronic device is in the receiver call mode. In this way, the vibration of the target capacitor can be controlled in the receiver call mode, so as to avoid the vibration noise of the target capacitor affecting the call experience of the user.

[0036] In an optional implementation, the control unit determines that the electronic device is in the receiver call mode based on at least one of the following: detecting that at least one mobile communication antenna of the electronic device is in a working state, receiving a broadcast that the electronic device enters a call state, detecting, by a proximity light sensor of the electronic device, that a human body is close, and detecting that a receiver of the electronic device is in a working state. In this way, it is convenient to determine that the electronic device is in the receiver call mode.

[0037] To achieve the above object, in a third aspect, the present application provides an electronic device comprising the capacitor vibration control apparatus in any of the optional implementation modes of the first aspect.

[0038] To achieve the above object, in a fourth aspect, the present application provides a computer program product, when the computer program product runs on a computer, the computer program product makes the computer execute the capacitor vibration control method in any of the optional implementation modes of the second aspect.

[0039] To achieve the above object, in a fifth aspect, the embodiment of the present application provides a chip system, comprising a processor and an interface, the processor and the interface being coupled; the interface is used for receiving or outputting signals, and the processor is used for executing code instructions to execute the capacitive vibration control method in any one of the optional implementation manners of the second aspect.

[0040] It can be understood that the beneficial effects achieved by the technical solutions provided in the third aspect to the fifth aspect can refer to the beneficial effects in any one of the optional implementation manners of the first aspect or the second aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0042] Figure 1 is a first setting form of a capacitor in a radio frequency circuit provided by the embodiment of the present application;

[0043] Figure 2 is a second setting form of a capacitor in a radio frequency circuit provided by the embodiment of the present application;

[0044] Figure 3 is a third setting form of a capacitor in a radio frequency circuit provided by the embodiment of the present application;

[0045] Figure 4 is a capacitive vibration curve provided by the embodiment of the present application;

[0046] Figure 5 is a voltage change diagram of the capacitor at both ends of the capacitor when the capacitor vibrates provided by the embodiment of the present application;

[0047] Figure 6 is an output diagram of a radio frequency circuit power supply when the capacitor vibrates provided by the embodiment of the present application;

[0048] Figure 7 is a structural diagram of an electronic device provided by the embodiment of the present application;

[0049] Figure 8 is a software structure block diagram of an electronic device provided by the embodiment of the present application;

[0050] Figure 9 is a structural block diagram of a capacitive vibration control device provided by the embodiment of the present application;

[0051] Figure 10 is a structural diagram of a capacitive vibration control device provided by the embodiment of the present application;

[0052] Figure 11 is a structural diagram of another capacitive vibration control device provided by an embodiment of the present application;

[0053] Figure 12 is a structural block diagram of another capacitive vibration control device provided by an embodiment of the present application;

[0054] Figure 13 is a curve diagram of a first voltage of a power supply provided by an embodiment of the present application;

[0055] Figure 14 is a structural block diagram of a power supply provided by an embodiment of the present application;

[0056] Figure 15 is a flow chart of a capacitive vibration control method provided by an embodiment of the present application;

[0057] Figure 16 is a structural block diagram of a chip system provided by an embodiment of the present application. DETAILED DESCRIPTION

[0058] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0059] Hereinafter, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include one or more features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0060] In addition, in the present application, the orientation terms such as "upper", "lower", "inner", "outer", and the like are defined with respect to the orientation of the components shown in the drawings. It should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the orientation of the components placed in the drawings.

[0061] At present, in order to facilitate the use of users, electronic devices (such as mobile phones, tablet computers, smart wearable devices, and vehicle telephone systems, etc.) usually have wireless communication functions, thereby providing more flexible, convenient and diversified communication modes for electronic devices to meet the needs of users for instant and mobile information exchange.

[0062] Further, the radio frequency circuit is one of the main components to realize the wireless communication function of the electronic device. The radio frequency circuit is a circuit for processing wireless communication signals, which can convert information into radio frequency signals and transmit them to receivers or other devices.

[0063] In the radio frequency circuit, the capacitor can usually be used as part of the filter to realize the filtering function. Alternatively, the capacitor can be used as a coupler to realize the coupling of signals. At the same time, in the radio frequency circuit, filtering and coupling are one of the basic functions of the radio frequency circuit to realize the wireless communication function. In the radio frequency circuit, it is difficult to avoid setting the capacitor.

[0064] The mainboard is also included in the electronic device to facilitate the integrated design of the electronic and circuit structure in the electronic device. The radio frequency circuit in the electronic device is usually also integrated on the mainboard to realize the integrated setting of the radio frequency circuit, thereby reducing the space occupied by the radio frequency circuit in the electronic device.

[0065] Figure 1 is a first setting form of the capacitor in the radio frequency circuit provided by the embodiment of the present application.

[0066] As shown in Figure 1 , for example, in the electronic device, the capacitor 10 in the radio frequency circuit can be arranged on one side of the mainboard 20, and the electrical connection between the mainboard 20 and the capacitor 10 is realized through the terminal post 30. The terminal post 30 can also support the capacitor 10. In order to improve the connection stability of the mainboard 20 and the capacitor 10, a connecting layer 40 is arranged between the capacitor 10 and the mainboard 20 to fill the gap between the capacitor 10 and the mainboard 20 by using the connecting layer 40. In this way, when the mainboard 20 is bumped, the connecting layer 40 can improve the connection strength of the capacitor 10 and the mainboard 20, thereby preventing the terminal post 30 from being damaged and affecting the stability of the electrical connection between the capacitor 10 and the mainboard 20.

[0067] For example, the connecting layer 40 can be formed by filling adhesive between the capacitor 10 and the mainboard 20 and solidifying the adhesive. The adhesive can be epoxy adhesive, silicone rubber, hot melt adhesive, and acrylic adhesive, etc.

[0068] During the operation of the radio frequency circuit, the capacitor 10 in the radio frequency circuit often vibrates, thereby generating vibration noise. The vibration of the capacitor 10 is also conducted to the mainboard 20 through the terminal post 30 and the connecting layer 40, causing the mainboard 20 to also vibrate, making the vibration noise more serious and affecting the user's experience. Especially when the user listens to the voice or makes a call using the earpiece, the electronic device is closer to the user's ear at this time, so the user not only feels more obvious vibration of the capacitor 10 and the mainboard 20, but also causes the user to hear the voice or call content clearly.

[0069] Furthermore, when capacitor 10 vibrates, it not only affects the user experience, but also causes the motherboard 20 to vibrate, which in turn affects the connection stability between the electronic components on the motherboard 20 and the motherboard 20, thus affecting the reliability of the motherboard 20.

[0070] Figure 2 This is a schematic diagram of a second configuration of capacitors in a radio frequency circuit provided in an embodiment of this application.

[0071] like Figure 2 As shown, in order to reduce the impact of capacitor 10 vibration on motherboard 20, the connection layer 40 can be omitted between motherboard 20 and capacitor 10. In this way, capacitor 10 can only transmit vibration to motherboard 20 through terminal 30, which can effectively alleviate the vibration of motherboard 20, thereby reducing vibration noise and improving the reliability of motherboard 20.

[0072] but, Figure 2 The capacitor 10 shown is connected to the motherboard 20 only through the terminal block 30. When the capacitor 10 vibrates, it affects the stability of the connection between the capacitor 10 and the motherboard 20, thus affecting the reliability of the connection. Furthermore, when the capacitor 10 and the motherboard 20 are connected only through the terminal block 30, the connection strength between the motherboard 20 and the capacitor 10 is weakened. If the electronic device is dropped or impacted, both the motherboard 20 and the capacitor 10 will be affected, further impacting the reliability of the connection between the capacitor 10 and the motherboard 20.

[0073] Figure 3 This is a schematic diagram of the third configuration of capacitors in the radio frequency circuit provided in the embodiments of this application.

[0074] like Figure 3 As shown, to reduce the vibration of capacitor 10, a large-capacity capacitor 10 can be split into two smaller-capacity capacitors 10, and the two smaller-capacity capacitors 10 have the same function in the circuit as the large-capacity capacitor 10. For example, if an RF circuit requires a 2.2 microfarad capacitor 10, it can be split into two 1.1 microfarad capacitors 10. Figure 3 As shown in (b) above, where, Figure 3 (b) in the middle is Figure 3 In the top view of (a) above, two capacitors 10 of the same capacitance can be arranged in a "T" shape on the motherboard 20. When the two capacitors 10 vibrate, there is a phase difference between their vibrations. By adjusting the coupling method of the two capacitors 10 and the RF circuit, the peak value of the vibration of one capacitor 10 can be made to correspond exactly to the trough value of the vibration of the other capacitor 10. In this way, when the two vibrations are superimposed, their amplitudes will cancel each other out, resulting in a reduction in the overall vibration amplitude.

[0075] Because the motherboard 20 often requires numerous electronic components to achieve different functions during its design process, it is a high-density board. Given the limited space on the motherboard 20, splitting one capacitor 10 into two capacitors 10 requires even more space, making the motherboard 20 design difficult and increasing design costs.

[0076] As explained above, modifying the structure of capacitor 10 and the connection between capacitor 10 and motherboard 20 to reduce capacitor 10 vibration can lead to other difficult-to-solve problems. To address the capacitor 10 vibration issue while minimizing its impact on other designs, the applicant is conducting research on the vibration process of capacitor 10.

[0077] Figure 4 This is a capacitance vibration curve provided in an embodiment of this application.

[0078] like Figure 4 As shown, the amplitude of capacitor 10 changes during vibration, but a peak value appears at every time interval T. In other words, the vibration of capacitor 10 reaches a peak value every certain period T, and the vibration of capacitor 10 exhibits periodic changes.

[0079] Figure 5 This is a schematic diagram of the voltage change across the capacitor during capacitor vibration, provided in an embodiment of this application.

[0080] like Figure 5 As shown, Figure 5 The voltage across capacitor 10 exhibits a significant drop, with the voltage rising from a trough to a peak and then falling back to a trough every time interval T. This voltage drop shows a periodic variation with a period of T. Research has revealed that in the radio frequency circuit, when there is a large voltage drop across capacitor 10, capacitor 10 will vibrate. This periodic voltage drop causes a piezoelectric effect in capacitor 10, resulting in vibration, generating vibration noise, and causing the motherboard 20 to vibrate. Therefore, the vibration of capacitor 10 is due to the periodic voltage drop across it.

[0081] Figure 6 This is a schematic diagram of the power supply output of the radio frequency circuit during capacitor vibration provided in an embodiment of this application. Wherein, Figure 6 (a) in the figure is the first voltage curve of the power supply output of the radio frequency circuit. Figure 6 (b) in the figure is the first current curve of the power supply output of the radio frequency circuit.

[0082] Furthermore, when the power amplifier in the radio frequency (RF) circuit is operating, the RF circuit power supply needs to provide a periodic large current with a period of T, where T is the operating period of the power amplifier. In this case, as...Figure 6 As shown in (a) of FIG. 1, the first voltage and the first current output by the radio frequency circuit power supply periodically change to meet the working requirements of the power amplifier. Figure 6 As shown in (a) of FIG. 1, the first voltage output by the radio frequency circuit power supply alternately changes between a high level and a low level, and the voltage difference between the high level and the low level is ΔV.

[0083] In an example, the electronic device can control the output of the radio frequency circuit power supply by using a control system, so that the radio frequency circuit power supply can work according to the voltage and current shown in (a) of FIG. 1. The high level of the first voltage of the radio frequency circuit power supply can be determined according to the working parameters of the power amplifier, and the low level can be 0 to save energy. Figure 6

[0084] In another example, the radio frequency circuit power supply can always output a high level, and the electronic device can control the on-off of the radio frequency circuit power supply and the radio frequency circuit by using a control switch. In this way, when the control switch is in the on state, the high level of the radio frequency circuit power supply can be output to the radio frequency circuit. When the control switch is in the off state, the high level of the radio frequency circuit power supply cannot be output to the radio frequency circuit, which is equivalent to outputting a low level to the radio frequency circuit, so that the radio frequency circuit can obtain the current and voltage shown in (a) of FIG. 1. Figure 6

[0085] The applicant further analyzes the above situation and finds that Figure 6 The periodic change of the first voltage and the first current output by the radio frequency circuit power supply shown in (a) of FIG. 1 is the reason for the periodic voltage drop across the capacitor 10. At the same time, the greater the voltage difference ΔV between the high level and the low level of the output of the radio frequency circuit power supply, the greater the vibration amplitude of the capacitor 10.

[0086] Based on the above situation, the application provides a capacitor vibration control device applied to an electronic device to reduce the vibration amplitude of the capacitor, so as to reduce the noise generated by the capacitor vibration and reduce the vibration amplitude of the circuit board, improve the reliability of the circuit board and the user experience.

[0087] ​​It is understood that electronic devices may include, but are not limited to, mobile phones, tablets, handheld computers, personal computers (PCs), ultra-mobile personal computers (UMPCs), netbooks, as well as cellular phones, personal digital assistants (PDAs), augmented reality (AR) devices, virtual reality (VR) devices, artificial intelligence (AI) devices, wearable devices, and in-vehicle devices. This application does not impose any special restrictions on the specific types of electronic devices.

[0088] Figure 7 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0089] like Figure 7 As shown, the electronic device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, antenna 1, antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, a headphone jack 170D, a sensor module 180, buttons 190, a motor 191, an indicator 192, a camera 193, a display screen 194, and a subscriber identification module (SIM) card interface 195, etc. The sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an accelerometer sensor 180C, a distance sensor 180D, a proximity light sensor 180E, an ambient light sensor 180F, etc.

[0090] It is understood that the structures illustrated in the embodiments of the present invention do not constitute a specific limitation on the electronic device 100. In other embodiments of this application, the electronic device 100 may include more or fewer components than illustrated, or combine some components, or split some components, or have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0091] The processor 110 can include one or more processing units, for example: the processor 110 can include an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Different processing units can be independent devices or integrated in one or more processors.

[0092] The controller can generate operation control signals according to the instruction operation code and the timing signal, and complete the control of fetching and executing instructions.

[0093] The processor 110 can also be provided with a memory for storing instructions and data. In some implementations, the memory in the processor 110 is a cache memory. The memory can save instructions or data that have just been used or are used repeatedly by the processor 110. If the processor 110 needs to use the instructions or data again, it can directly call from the memory. This avoids repeated access and reduces the waiting time of the processor 110, thereby improving the efficiency of the system.

[0094] In some implementations, the processor 110 can include one or more interfaces. The interfaces can include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous receiver / transmitter (UART) interface, a mobile industry processor interface (MIPI), a general-purpose input / output (GPIO) interface, a subscriber identity module (SIM) interface, and / or a universal serial bus (USB) interface, etc.

[0095] The external memory interface 120 can be configured to connect an external memory card, such as a Micro SD card, to extend the storage capability of the electronic device 100. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. For example, files such as music and videos can be stored in the external memory card.

[0096] In an embodiment of the present application, the processor 110 can include a microcontroller unit (MCU). The MCU can execute software instructions corresponding to a private protocol stored in a memory to control various hardware involved in the capacitive vibration control method.

[0097] The internal memory 121 can be configured to store computer executable program codes including instructions. The internal memory 121 can include a program storage area and a data storage area. The program storage area can store an operating system, at least one application program required for a function (such as a sound playing function, an image playing function, etc.), and the like. The data storage area can store data created during use of the electronic device 100 (such as audio data, a phonebook, etc.), and the like. In addition, the internal memory 121 can include a high-speed random access memory, and can further include a non-volatile memory such as at least one of a magnetic disk storage device, a flash memory device, a universal flash storage (UFS), and the like. The processor 110 executes various function applications and data processing of the electronic device 100 by running instructions stored in the internal memory 121 and / or instructions stored in a memory disposed in the processor.

[0098] In an embodiment of the present application, the internal memory 121 can be configured to store software instructions corresponding to a private protocol.

[0099] The charging management module 140 is configured to receive a charging input from a charger. The charger can be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 can receive a charging input of a wired charger through the USB interface 130. In some wireless charging embodiments, the charging management module 140 can receive a wireless charging input through a wireless charging coil of the electronic device 100. The charging management module 140 can charge the battery 142 while also supplying power to the electronic device through the power management module 141.

[0100] The power management module 141 is configured to connect the battery 142 and the charging management module 140 to the processor 110. The power management module 141 receives input from the battery 142 and / or the charging management module 140 to power the processor 110, the internal memory 121, the display 194, the camera 193, the wireless communication module 160, and the like. The power management module 141 can also be configured to monitor parameters such as battery capacity, battery cycle count, battery health status (leakage, impedance), and the like. In some embodiments, the power management module 141 can also be disposed in the processor 110. In some embodiments, the power management module 141 and the charging management module 140 can also be disposed in the same device.

[0101] The wireless communication function of the electronic device 100 can be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modem processor, and the baseband processor, and the like.

[0102] The antenna 1 and the antenna 2 are configured to transmit and receive electromagnetic wave signals. Each antenna in the electronic device 100 can be configured to cover a single or multiple communication frequency bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example, the antenna 1 can be multiplexed as a diversity antenna for a wireless local area network. In some embodiments, the antennas can be used in combination with a tuning switch.

[0103] The mobile communication module 150 can provide a solution for wireless communication including 2G / 3G / 4G / 5G and the like applied to the electronic device 100. The mobile communication module 150 can include at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), and the like. The mobile communication module 150 can receive electromagnetic waves from the antenna 1, filter, amplify, and the like the received electromagnetic waves, and transmit the processed signals to the modem processor for demodulation. The mobile communication module 150 can also amplify signals modulated by the modem processor and radiate the signals as electromagnetic waves through the antenna 1. In some embodiments, at least part of the functional modules of the mobile communication module 150 can be disposed in the processor 110. In some embodiments, at least part of the functional modules of the mobile communication module 150 and at least part of the modules of the processor 110 can be disposed in the same device.

[0104] The modem processor can include a modulator and a demodulator. The modulator is configured to modulate a low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is configured to demodulate a received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then transmits the demodulated low-frequency baseband signal to the baseband processor for processing. The low-frequency baseband signal processed by the baseband processor is transmitted to the application processor. The application processor outputs a sound signal through an audio device (not limited to a speaker 170A, a microphone 170B, etc.), or displays an image or a video through the display 194. In some implementations, the modem processor can be a separate device. In other embodiments, the modem processor can be independent of the processor 110 and be disposed in the same device as the mobile communication module 150 or other functional modules.

[0105] The wireless communication module 160 can provide a wireless communication solution including wireless local area networks (WLAN) (e.g., wireless fidelity (Wi-Fi) network), Bluetooth (BT), global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), infrared (IR) technology, etc. The wireless communication module 160 can be one or more devices that integrate at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering processing on the electromagnetic wave signal, and transmits the processed signal to the processor 110. The wireless communication module 160 can also receive a signal to be transmitted from the processor 110, perform frequency modulation and amplification, and convert the signal into electromagnetic wave radiation via the antenna 2.

[0106] In some implementations, the antenna 1 and the mobile communication module 150 of the electronic device 100 are coupled, and the antenna 2 and the wireless communication module 160 are coupled, so that the electronic device 100 can communicate with a network and other devices through wireless communication technology. The wireless communication technology can include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), wideband code division multiple access (WCDMA), time-division code division multiple access (TD-SCDMA), long term evolution (LTE), BT, GNSS, WLAN, NFC, FM, and / or IR technology, etc. The GNSS can include a global positioning system (GPS), a global navigation satellite system (GLONASS), a beidou navigation satellite system (BDS), a quasi-zenith satellite system (QZSS), and / or a satellite based augmentation systems (SBAS).

[0107] In the embodiments of the present application, the wireless communication function of the electronic device can be implemented by using the mobile communication module 150 and the wireless communication module 160, and a radio frequency circuit can be arranged in the mobile communication module 150 and the wireless communication module 160. The power management module 141 can provide power supply for the radio frequency circuit, and can control the first voltage and the first current output to the radio frequency circuit.

[0108] The electronic device 100 implements a display function by a GPU, a display screen 194, and an application processor, etc. The GPU is a microprocessor for image processing, connected to the display screen 194 and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 can include one or more GPUs that execute program instructions to generate or change display information.

[0109] The display screen 194 is used to display images, videos, etc. The display screen 194 includes a display panel.

[0110] The electronic device 100 can implement a photographing function through an ISP, a camera 193, a video codec, a GPU, a display 194, and an application processor, etc.

[0111] The ISP is used to process data fed back by the camera 193. For example, when taking a photo, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, the light signal is converted into an electrical signal, and the camera photosensitive element transmits the electrical signal to the ISP for processing, and converts it into an image visible to the naked eye. The ISP can also perform algorithm optimization on the noise, brightness, and skin color of the image. The ISP can also optimize the exposure, color temperature, and other parameters of the shooting scene. In some implementations, the ISP can be disposed in the camera 193.

[0112] The camera 193 is used to capture still images or videos.

[0113] The electronic device 100 can implement an audio function through an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, and an application processor, etc. For example, music playing, recording, etc.

[0114] The audio module 170 is used to convert digital audio information into an analog audio signal output, and is also used to convert an analog audio input into a digital audio signal. The audio module 170 can also be used to encode and decode audio signals. In some implementations, the audio module 170 can be disposed in the processor 110, or part of the function modules of the audio module 170 can be disposed in the processor 110.

[0115] The speaker 170A, also known as a "loudspeaker", is used to convert an audio electrical signal into an acoustic signal. The electronic device 100 can listen to music or listen to a hands-free call through the speaker 170A.

[0116] The receiver 170B, also known as a "earpiece", is used to convert an audio electrical signal into an acoustic signal. When the electronic device 100 answers a call or a voice message, the receiver 170B can be used to listen to the voice by placing it close to the ear.

[0117] Microphone 170C, also referred to as a "microphone", "microphone", is used to convert a sound signal into an electrical signal. When making a call or sending a voice message, the user can speak into the microphone 170C by placing the mouth close to the microphone 170C, and input the sound signal into the microphone 170C. The electronic device 100 can be provided with at least one microphone 170C. In other embodiments, the electronic device 100 can be provided with two microphones 170C, in addition to collecting sound signals, noise reduction functions can also be realized. In other embodiments, the electronic device 100 can also be provided with three, four or more microphones 170C, to realize the collection of sound signals, noise reduction, and can also identify the sound source, realize the function of directional recording, etc.

[0118] The earphone interface 170D is used to connect a wired earphone. The earphone interface 170D can be a USB interface 130, or a 3.5mm open mobile terminal platform (OMTP) standard interface, a cellular telecommunications industry association of the USA (CTIA) standard interface.

[0119] The pressure sensor 180A is used to sense a pressure signal, which can convert the pressure signal into an electrical signal. In some implementations, the pressure sensor 180A can be provided on the display screen 194.

[0120] The gyroscope sensor 180B can be used to determine the motion posture of the electronic device 100.

[0121] The acceleration sensor 180C can detect the acceleration of the electronic device 100 in each direction (generally three axes).

[0122] The distance sensor 180D is used to measure the distance.

[0123] The proximity light sensor 180E can include, for example, a light emitting diode (LED) and a light detector, such as a photodiode. The light emitting diode can be an infrared light emitting diode. The electronic device 100 emits infrared light outwardly through the light emitting diode. The electronic device 100 uses the photodiode to detect infrared reflected light from nearby objects. When sufficient reflected light is detected, it can be determined that there is an object near the electronic device 100. When insufficient reflected light is detected, the electronic device 100 can determine that there is no object near the electronic device 100. The electronic device 100 can use the proximity light sensor 180E to detect that the user holds the electronic device 100 close to the ear to talk, so as to automatically turn off the screen to achieve the purpose of power saving. The proximity light sensor 180E can also be used for automatic unlocking and locking of the skin cover mode and the pocket mode.

[0124] Ambient light sensor 180F is used to sense ambient light brightness. Electronic device 100 can adaptively adjust display screen 194 brightness according to the sensed ambient light brightness. Ambient light sensor 180F can also be used to automatically adjust white balance when taking photos. Ambient light sensor 180F can also work with proximity light sensor 180E to detect whether electronic device 100 is in a pocket to prevent accidental touch.

[0125] Keys 190 include power on key, volume key, etc. Keys 190 can be mechanical keys. They can also be touch keys. Electronic device 100 can receive key input and generate key signal input related to user settings and function control of electronic device 100.

[0126] Motor 191 can generate vibration prompt. Motor 191 can be used for incoming call vibration prompt and also for touch vibration feedback. For example, touch operation on different applications (such as taking photos, audio playing, etc.) can correspond to different vibration feedback effects. Touch operation on different areas of display screen 194 can also correspond to different vibration feedback effects. Different application scenarios (such as time reminder, receiving information, alarm, game, etc.) can also correspond to different vibration feedback effects. Touch vibration feedback effects can also support customization.

[0127] Indicator 192 can be an indicator light, which can be used to indicate charging status, power change, and also to indicate messages, missed calls, notifications, etc.

[0128] SIM card interface 195 is used to connect SIM card.

[0129] Software system of electronic device 100 can adopt layered architecture, event-driven architecture, micro-kernel architecture, micro-service architecture, or cloud architecture. Embodiments of the present application take layered architecture Android system as an example to exemplarily illustrate software structure of electronic device 100.

[0130] Figure 8 is a software structure block diagram of electronic device provided by embodiments of the present application.

[0131] As shown in Figure 8 , layered architecture divides software into several layers, each layer has clear role and division of labor. Layers communicate with each other through software interface. In some implementations, Android system is divided into four layers, from top to bottom, application layer, application framework layer, Android runtime and system library, and kernel layer.

[0132] Application layer can include a series of application packages.

[0133] As shown in Figure 8As shown, the application package can include applications such as battery management, camera, gallery, calendar, call, map, navigation, music, video, short message, etc.

[0134] The application framework layer provides an application programming interface (API) and a programming framework for the applications of the application layer. The application framework layer includes some pre-defined functions.

[0135] In the embodiments of the present application, the API can encapsulate part of the functions of the private protocol for calling by the applications.

[0136] As shown, the application framework layer can include a window manager, an input manager, a sensor manager, a phone manager, a resource manager, a notification manager, etc. Figure 8 The input manager can be used to listen to the input events of the user, such as the click event and the sliding event of the user's finger on the display screen 194 of the electronic device 100. By listening to the input events, the electronic device 100 can determine whether the electronic device 100 is being used.

[0137] The sensor manager is used to listen to the data returned by each sensor in the electronic device 100, such as the motion sensor data and the proximity light sensor data. By using the data returned by each sensor, the electronic device 100 can determine whether it is shaking or whether the display screen 194 is blocked, etc.

[0138] The Android Runtime includes a core library and a virtual machine. The Android runtime is responsible for the scheduling and management of the Android system.

[0139] The core library includes two parts: one part is the function function called by the java language, and the other part is the core library of Android.

[0140] The application layer and the application framework layer run in the virtual machine. The virtual machine executes the java files of the application layer and the application framework layer into binary files. The virtual machine is used to perform the management of the object life cycle, the management of the stack, the management of the thread, the management of the security and the exception, and the garbage collection, etc. The system library can include multiple function modules. For example: the surface manager (Surface Manager), the media library (Media Libraries), the three-dimensional graphics processing library (for example: OpenGLES), the 2D graphics engine (for example: SGL), etc.

[0141]

[0142] ​The surface manager is used to manage the display subsystem and provides 2D and 3D layer fusion for multiple applications.

[0143] The media library supports playback and recording of multiple common audio, video formats, and static image files. The media library can support multiple audio and video encoding formats, such as MPEG4, H.264, MP3, AAC, AMR, JPG, PNG, and the like.

[0144] The three-dimensional graphics processing library is used to implement three-dimensional graphics drawing, image rendering, composition, and layer processing.

[0145] The 2D graphics engine is a drawing engine for 2D drawing.

[0146] The kernel layer is a layer between hardware and software. The kernel layer at least includes a display driver, a camera driver, an audio driver, a sensor driver, and a power supply driver.

[0147] In the embodiments of the present application, if a private protocol can interact with specific hardware, the software corresponding to the private protocol can be implemented in the kernel layer to control the hardware in the hardware layer.

[0148] It can be understood that the structure illustrated in the embodiments of the present application does not constitute a specific limitation on the electronic device 100. In other embodiments of the present application, the electronic device 100 can include more or fewer components than illustrated, or combine certain components, or split certain components, or different component arrangements. The illustrated components can be implemented in hardware, software, or a combination of software and hardware.

[0149] Figure 9 is a structural block diagram of a capacitive vibration control device provided in an embodiment of the present application.

[0150] As shown in Figure 9 In the embodiments provided in the present application, the capacitive vibration control device 200 includes a control unit 201, a detection unit 202, and a target capacitor 301.

[0151] The target capacitor 301 can be a target capacitor 301 in a radio frequency circuit in the electronic device 100. Alternatively, the target capacitor 301 can also be a capacitor that generates vibration in other circuit structures in the electronic device 100, and the circuit in which the target capacitor 301 is located is not limited in the present embodiment.

[0152] The control unit 201 is connected to the detection unit 202. The control unit 201 can control the detection unit 202 to detect, and can also obtain the detection result of the detection unit 202, so as to control the vibration condition of the target capacitor 301 according to the detection result of the detection unit 202.

[0153] In an example, the control unit 201 can be a processor 110 in the electronic device 100.

[0154] Optionally, the control unit 201 can be a central processing unit (CPU), a digital signal processor (DSP), a field-programmable gate array (FPGA), an application-specific integrated circuit (ASIC), or the like.

[0155] In another example, the control unit 201 can be a software control module in the processor 110 in the electronic device 100.

[0156] It should be noted that the control unit 201 can be a hardware with a control function in the electronic device 100, or a software control module integrated in the processor or the power management module in the electronic device 100, and the software and hardware settings of the control unit 201 are not limited in the embodiment.

[0157] Further, the detection unit 202 is configured to detect the target capacitor 301. In order to facilitate the detection of the target capacitor 301, the detection unit 202 can be arranged adjacent to the target capacitor 301, so as to facilitate the improvement of the accuracy of the detection result of the target capacitor 301.

[0158] In the embodiment, the detection unit 202 is configured to detect the target capacitor 301 to obtain a detection result corresponding to the target capacitor 301. The control unit 201 is configured to adjust the vibration state of the target capacitor 301 based on the detection result of the detection unit 202. In this way, the detection of the target capacitor 301 can be realized by the detection unit 202, so as to facilitate the monitoring of the vibration state of the target capacitor 301. Meanwhile, the control unit 201 can adjust the target capacitor 301 according to the detection result of the detection unit 202, so as to avoid the vibration amplitude of the target capacitor 301 being too large, thereby reducing the vibration noise of the target capacitor 301, and reducing the vibration amplitude of other components connected with the target capacitor 301, improving the user experience, and improving the reliability of the target capacitor 301 and the circuit structure in which the target capacitor 301 is located.

[0159] In an implementation, the detection unit 202 is configured to detect the vibration state of the target capacitor 301 to obtain a detection result. The detection result includes the amplitude and the period of the target capacitor 301. In this way, the control unit 201 can determine whether the vibration state of the target capacitor 301 needs to be adjusted according to the vibration amplitude and the vibration period of the target capacitor 301.

[0160] Figure 10 FIG. 1 is a structural schematic diagram of a capacitor vibration control device provided by an embodiment of the present application.

[0161] As shown in FIG. 1, the target capacitor 301 is arranged on the circuit board 302. Figure 10 Optionally, the radio frequency circuit is integrated on the circuit board 302, and the target capacitor 301 is arranged on the circuit board 302.

[0162] For example, the target capacitor 301 can be arranged on one side of the circuit board 302, and the target capacitor 301 and the circuit board 302 can be electrically connected by using a terminal post. In order to ensure the connection strength between the target capacitor 301 and the circuit board 302, a connection layer can be used to improve the connection strength between the target capacitor 301 and the circuit board 302, so as to improve the connection stability of the target capacitor 301 and the circuit board 302. Alternatively, in other embodiments, the target capacitor 301 and the circuit board 302 can be connected only by the terminal post. In the present embodiment, the connection between the target capacitor 301 and the circuit board 302 is not limited.

[0163] Optionally, the detection unit 202 and the control unit 201 can be connected by using the conductive layer 3021 on the circuit board 302, so as to realize the electrical connection between the detection unit 202 and the control unit 201, and facilitate the control unit 201 to obtain the detection result of the detection unit 202.

[0164] In an example, when the detection result includes the amplitude and the vibration period of the target capacitor 301, the detection unit 202 can include a motion sensor. The motion sensor is arranged on the circuit board 302 and is configured to obtain the vibration state of the target capacitor 301 by detecting the vibration state of the circuit board 302, so as to obtain the vibration period and the amplitude of the target capacitor 301.

[0165] Since the target capacitor 301 is arranged on the circuit board 302, when the target capacitor 301 vibrates, the target capacitor 301 will transmit the vibration to the circuit board 302, so as to drive the circuit board 302 to vibrate. The vibration period of the circuit board 302 is the same as the vibration period of the target capacitor 301, and the amplitude of the circuit board 302 has a corresponding relationship with the amplitude of the target capacitor 301. In this way, the vibration state of the target capacitor 301 can be obtained by detecting the vibration state of the circuit board 302, so as to obtain the vibration period and the amplitude of the target capacitor 301.

[0166] In some implementations, the motion sensor can include an acceleration sensor. When the circuit board 302 vibrates, the acceleration of the circuit board 302 changes. The acceleration sensor can detect the vibration state of the circuit board 302 by detecting the acceleration change of the circuit board 302 and record it in three-dimensional coordinates.

[0167] The acceleration sensor can be arranged adjacent to the target capacitor 301 and on the circuit board 302, so as to collect the vibration state of the position on the circuit board 302 with relatively large vibration amplitude, so as to obtain the vibration state of the target capacitor 301. In addition, when the acceleration sensor is arranged on the circuit board 302, the installation position and direction can be selected by debugging to obtain more accurate detection results.

[0168] Further, the detection unit 202 can further include a processing module, which can process the detection data of the acceleration sensor, convert the acceleration data of the circuit board 302 into vibration data, and thus obtain the vibration amplitude and vibration period of the circuit board 302.

[0169] For example, the processing module can have filtering and calculation functions, so as to pre-process the acceleration signal collected by the acceleration sensor, and calculate according to the pre-processed acceleration signal to obtain the vibration amplitude and vibration period of the circuit board 302.

[0170] Optionally, the processing module can be Figure 8 part of the sensor driver in the kernel layer. The sensor driver is used to manage the operation of the sensor, including initialization, configuration and data reading, etc. The processing module can be part of the software layer in the sensor driver, responsible for processing the data collected by the sensor.

[0171] In some implementations, the motion sensor can include an acceleration gyroscope sensor.

[0172] The acceleration gyroscope sensor can measure acceleration and angular velocity at the same time compared with the ordinary acceleration sensor, so as to obtain more accurate vibration state. At the same time, the acceleration gyroscope sensor usually has higher sampling rate and faster response speed, which can capture the rapidly changing acceleration and angular velocity signal faster. This is very important for some real-time response applications, such as vibration control, motion detection, etc.

[0173] In this embodiment, the vibration amplitude of the target capacitor 301 and the circuit board 302 is small, and the acceleration gyroscope sensor can obtain more accurate vibration data compared with the ordinary acceleration sensor, so as to obtain more accurate detection results by using the acceleration gyroscope sensor, so as to realize the adjustment of the vibration state of the target capacitor 301 in time.

[0174] It should be noted that the specific setting form of the acceleration gyroscope sensor can refer to the description of the acceleration sensor, which will not be repeated here.

[0175] In some implementations, the motion sensor can include a distance sensor. When the circuit board 302 vibrates, a structure around the circuit board 302 that does not vibrate can be selected as a reference. In this way, when the circuit board 302 vibrates, the distance between the circuit board 302 and the reference will change. Based on this, the distance sensor can detect the vibration state of the circuit board 302 by detecting the change in the distance between the circuit board 302 and the reference, to obtain the vibration state of the target capacitor 301.

[0176] The distance sensor can be arranged adjacent to the target capacitor 301 and arranged on the circuit board 302, so as to be able to collect the vibration state of the position on the circuit board 302 with relatively large vibration amplitude, so as to obtain the vibration state of the target capacitor 301. In addition, when the distance sensor is arranged on the circuit board 302, a suitable mounting position and direction can also be selected through debugging, so as to obtain more accurate detection results.

[0177] Further, the detection unit 202 can also include a processing module, which can process the detection data of the distance sensor and convert the distance data between the circuit board 302 and the reference into vibration data, so as to obtain the vibration amplitude and vibration period of the circuit board 302.

[0178] It should be noted that the related description of the processing module can refer to the related description of the processing module in the acceleration sensor, which will not be repeated here.

[0179] In some implementations, the motion sensor can also include a laser sensor, a piezoelectric sensor, and other sensors that can detect the vibration state, and the type and specific setting form of the motion sensor are not limited in the embodiment.

[0180] In another example, when the detection result includes the amplitude and vibration period of the target capacitor 301, the detection unit 202 can include an audio sensor. The audio sensor is arranged adjacent to the target capacitor 301, and the audio sensor is configured to obtain the vibration state of the target capacitor 301 by detecting the vibration sound of the target capacitor 301, to obtain the vibration period and amplitude of the target capacitor 301.

[0181] When the object vibrates, the object will interact with the medium (such as water, air, etc.) around the object, causing the vibration and transmission of the molecules in the medium. The vibration of these molecules will cause the change of pressure, form sound waves and spread out. The characteristics of the sound produced by the vibration of the object are related to the vibration frequency, amplitude of the object and the shape, material and other factors of the object. Therefore, in the embodiment, the vibration sound of the target capacitor 301 can be collected by using the audio sensor, and the vibration state of the target capacitor 301 can be obtained according to the vibration sound, so as to obtain the amplitude and vibration period of the target capacitor 301.

[0182] Further, the detection unit 202 can further include a processing module, which can process the detection data of the audio sensor, convert the sound data when the target capacitor 301 vibrates into vibration data, so as to obtain the vibration amplitude and vibration period of the target capacitor 301.

[0183] It should be noted that the related description of the processing module can refer to the related description of the processing module in the acceleration sensor, which will not be repeated here.

[0184] In addition, when collecting the vibration sound of the target capacitor 301, the ambient sound detection audio sensor can be used to detect the ambient sound of the target capacitor 301. In this way, the vibration sound collected by the audio sensor can be de-noised by using the ambient sound, so as to improve the accuracy of vibration sound detection.

[0185] In another implementation manner, the detection unit 202 is configured to detect the voltage difference between the two ends of the target capacitor 301 to obtain the detection result. The detection result includes the voltage difference between the two ends of the target capacitor 301 and the change period of the voltage difference between the two ends of the target capacitor 301.

[0186] As can be seen from the above description, the applicant found that the voltage difference between the two ends of the target capacitor 301 would cause the piezoelectric effect of the target capacitor 301, thereby causing the vibration of the target capacitor 301 when analyzing the vibration reason of the target capacitor 301. Therefore, when controlling the vibration of the target capacitor 301, the voltage difference between the two ends of the target capacitor 301 can be directly detected, and the control unit 201 can determine whether the vibration state of the target capacitor 301 needs to be adjusted according to the voltage difference between the two ends of the target capacitor 301 and the change period of the voltage difference between the two ends of the target capacitor 301.

[0187] Figure 11 is a structural diagram of another capacitor vibration control device provided by the embodiment of the application.

[0188] As Figure 11As shown, in some implementations, the detection unit 202 can include a digital-to-analog converter connected to the target capacitor 301. The digital-to-analog converter is configured to detect the voltage difference across the target capacitor 301. In this way, the digital-to-analog converter can be used to achieve real-time detection of the voltage difference across the target capacitor 301, so as to facilitate subsequent control of the vibration state of the target capacitor 301.

[0189] Optionally, the digital-to-analog converter and the target capacitor 301 can be connected through the conductive layer 3021 on the circuit board 302, so as to achieve electrical connection between the digital-to-analog converter and the target capacitor 301, so that the digital-to-analog converter can obtain the voltage difference across the target capacitor 301.

[0190] For example, the digital-to-analog converter can be integrated into the power management module 141, or integrated into the control unit 201, or set independently of each unit or module, which is not limited in the present embodiment.

[0191] In some implementations, the detection unit 202 can also include an operational amplifier, a voltage sensor, an oscilloscope, a digital voltmeter, etc., for detecting the voltage difference across the target capacitor 301. In the present embodiment, the specific form of the detection unit 202 is not limited.

[0192] In summary, the detection unit 202 can obtain a detection result with amplitude and vibration period by detecting the vibration state of the target capacitor 301. Alternatively, the detection unit 202 can obtain a detection result with voltage difference and voltage difference change period by detecting the voltage difference across the target capacitor 301. For different detection results, the control unit 201 can take different processing methods to achieve control of the vibration state of the target capacitor 301.

[0193] In one implementation, the control unit 201 can be configured to adjust the vibration state of the target capacitor 301 when the vibration period of the target capacitor 301 meets a preset period range and the amplitude of the target capacitor 301 meets a preset amplitude range.

[0194] Since the voltage difference across the target capacitor 301 comes from the periodically changing voltage of the power supply output, and the periodically changing voltage of the power supply output is determined based on the working characteristics of the electronic devices in the circuit. In this way, the change period of the voltage difference across the target capacitor 301 should be similar to the working period of the electronic devices in the circuit, so that the vibration period of the target capacitor 301 is similar to the working period of the electronic devices in the circuit.

[0195] For example, in a radio frequency circuit, a radio frequency power amplifier needs to work periodically, and the power supply can provide a periodically changing voltage to the radio frequency circuit to meet the working requirement of the power amplifier. The change period of the voltage difference across the target capacitor 301 is similar to the working period of the power amplifier.

[0196] Based on the above reasons, the change period of the voltage difference across the target capacitor 301 should be similar to the working period of the electronic device in the circuit where the target capacitor 301 is located. In other words, if the vibration period of the target capacitor 301 is similar to the working period of the electronic device in the circuit where the target capacitor 301 is located, it can be considered that the vibration of the target capacitor 301 is caused by the voltage difference across the target capacitor 301.

[0197] In an example, the target capacitor 301 satisfies the preset period range when the vibration period of the target capacitor 301 is equal to the working period of the electronic device in the circuit where the target capacitor 301 is located.

[0198] In another example, since there may be some errors in the measurement and analysis of the vibration period of the target capacitor 301, the target capacitor 301 satisfies the preset period range when the vibration period of the target capacitor 301 is equal to the working period of the electronic device ± a first error, wherein the first error is selected according to the measurement and analysis results of the vibration period of the target capacitor 301.

[0199] For example, if the working period of the electronic device in the circuit where the target capacitor 301 is located is 0.2 seconds, the preset period range can be 0.198 seconds to 0.202 seconds, and the first error is 0.02 seconds. If the vibration period of the target capacitor 301 is equal to 0.199 seconds, it can be considered that the vibration period of the target capacitor 301 is similar to the working period of the electronic device in the circuit where the target capacitor 301 is located.

[0200] In other embodiments, the first error can also be 0. It can be understood that the first error can be selected according to the actual situation, which is not limited in this embodiment.

[0201] Further, the greater the amplitude of the target capacitor 301, the stronger the vibration of the target capacitor 301, and the greater the vibration noise generated. Therefore, in addition to determining the vibration period of the target capacitor 301, the control unit 201 also needs to determine whether the amplitude of the target capacitor 301 satisfies the preset amplitude range, and if it does, the vibration state of the target capacitor 301 can be adjusted.

[0202] For example, the amplitude of the target capacitor 301 satisfying the preset amplitude range can be that the amplitude of the target capacitor 301 exceeds the preset amplitude threshold. In this way, when the amplitude of the target capacitor 301 exceeds the preset amplitude threshold, it indicates that the vibration of the target capacitor 301 is too large, and the vibration state of the target capacitor 301 needs to be adjusted to reduce the vibration noise of the target capacitor 301 and the influence on the circuit board 302.

[0203] In another implementation, the control unit 201 can be configured to adjust the vibration state of the target capacitor 301 when the change period of the voltage difference across the target capacitor 301 satisfies the preset period range and the voltage difference across the target capacitor 301 satisfies the preset pressure difference range.

[0204] As described above, the change period of the voltage difference across the target capacitor 301 should be similar to the working period of the electronic device in the circuit in which the target capacitor 301 is located.

[0205] In an example, the change period of the voltage difference across the target capacitor 301 satisfying the preset period range can be that the change period of the voltage difference across the target capacitor 301 is equal to the working period of the electronic device in the circuit in which the target capacitor 301 is located.

[0206] In another example, since there can be some errors in the measurement and analysis of the change period of the voltage difference across the target capacitor 301, the change period of the voltage difference across the target capacitor 301 satisfying the preset period range can be that the change period of the voltage difference across the target capacitor 301 is equal to the working period of the electronic device ± a second error, wherein the second error is selected according to the measurement and analysis results of the change period of the voltage difference across the target capacitor 301.

[0207] For example, if the working period of the electronic device in the circuit in which the target capacitor 301 is located is 0.2 seconds, the preset period range can be 0.199 seconds to 0.201 seconds, and the first error is 0.01 seconds. If the change period of the voltage difference across the target capacitor 301 is equal to 0.199 seconds, it indicates that the change period of the voltage difference across the target capacitor 301 is similar to the working period of the electronic device in the circuit in which the target capacitor 301 is located.

[0208] In other embodiments, the second error can also be 0. It can be understood that the second error can be selected according to actual conditions, which is not limited in the present embodiment.

[0209] Further, if the voltage difference across the target capacitor 301 is too large, the vibration of the target capacitor 301 will be large, and the vibration noise generated will be large. Therefore, in addition to determining the variation period of the voltage difference of the target capacitor 301, the control unit 201 also needs to determine whether the voltage difference across the target capacitor 301 satisfies a preset voltage difference range. If yes, the vibration state of the target capacitor 301 can be adjusted.

[0210] For example, the voltage difference across the target capacitor 301 satisfying the preset voltage difference range can be that the voltage difference across the target capacitor 301 is greater than a preset voltage difference threshold. In this way, when the voltage difference across the target capacitor 301 is greater than the preset voltage difference threshold, it indicates that the vibration of the target capacitor 301 is large, and the vibration state of the target capacitor 301 needs to be adjusted to reduce the vibration noise of the target capacitor 301 and the influence on the circuit board 302.

[0211] In some implementations, if the vibration period of the target capacitor 301 is similar to the working period of the electronic device in the circuit where the target capacitor 301 is located, or the variation period of the voltage difference across the target capacitor 301 is similar to the working period of the electronic device in the circuit where the target capacitor 301 is located, it can be indicated that the vibration of the target capacitor 301 is caused by the voltage difference across the target capacitor 301. When the control unit 201 determines that the vibration state of the target capacitor 301 needs to be adjusted according to the detection result of the detection unit 202, the control unit 201 can reduce the voltage difference across the target capacitor 301 to reduce the vibration of the target capacitor 301.

[0212] Figure 12 is a structural block diagram of another capacitor vibration control device provided by an embodiment of the present application.

[0213] As shown in Figure 12 For example, the following takes the circuit where the target capacitor 301 is located, i.e., the radio frequency circuit 300, as an example to introduce how the control unit 201 reduces the voltage difference across the target capacitor 301. The radio frequency circuit 300 can include a power amplifier 303 and a power supply 304. The power amplifier 303 is connected to the target capacitor 301, and the power supply 304 is configured to output a first voltage to the power amplifier 303 and the target capacitor 301.

[0214] In some implementations, the control unit 201 is configured to adjust the working parameter of the radio frequency circuit 300 to reduce the voltage difference across the target capacitor 301 to reduce the vibration of the target capacitor 301.

[0215] In one example, the control unit 201 adjusts the operating parameter of the radio frequency circuit 300 can be to reduce the operating power of the power amplifier 303. In this way, the voltage and current required by the power amplifier 303 when operating can be reduced, the first voltage output by the power supply 304 of the radio frequency circuit 300 can be reduced, thereby enabling the voltage difference across the target capacitor 301 to be reduced, to reduce the vibration of the target capacitor 301.

[0216] In another example, the control unit 201 adjusts the operating parameter of the radio frequency circuit 300 can be to reduce the fluctuation amplitude of the first voltage output by the power supply 304, to reduce the voltage difference across the target capacitor 301.

[0217] In some implementations, the control mode of the power supply 304 includes a pulse frequency modulation (PFM) mode and a pulse width modulation (PWM) mode. The PWM mode generally operates at a fixed frequency, which makes the response characteristics of the system easy to predict. At this frequency, the control system can effectively filter and control the output, and can effectively reduce the ripple of the first voltage. This way can provide a more stable first voltage. Therefore, under the control of the PFM mode, the fluctuation amplitude of the first voltage output by the power supply 304 is greater than that under the control of the PWM mode.

[0218] In this case, if the control unit 201 wants to reduce the fluctuation amplitude of the first voltage output by the power supply 304, the control unit 201 can adjust the control mode of the power supply 304 from the PFM mode to the PWM mode, to reduce the fluctuation amplitude of the first voltage output by the power supply 304, to reduce the voltage difference across the target capacitor 301, thereby reducing the vibration of the target capacitor 301.

[0219] Figure 13 is a graph of the first voltage output by the power supply provided by the embodiments of the present application.

[0220] As shown in (a) of Figure 13 In some implementations, the first voltage output by the power supply 304 can include a high level and a low level, and the high level and the low level are periodically alternating to meet the periodic operating requirements of the power amplifier 303, and the voltage difference between the high level and the low level is V1.

[0221] In one example, if the control unit 201 wants to reduce the fluctuation amplitude of the first voltage output by the power supply 304, as shown in (b) of Figure 13 In this way, the voltage difference between the high level and the low level can be reduced from V1 to V2, thereby enabling the fluctuation amplitude of the first voltage output by the power supply 304 to be reduced, the voltage difference across the target capacitor 301 to be reduced, to reduce the vibration of the target capacitor 301.

[0222] In another example, if the control unit 201 wants to reduce the fluctuation amplitude of the first voltage output by the power supply 304, the control unit 201 can control the power supply 304 to keep outputting high level, as shown in (c) of FIG. 6. In this way, the voltage difference between high level and low level can be reduced from V1 to 0, so as to reduce the fluctuation amplitude of the first voltage output by the power supply 304, reduce the voltage difference across the target capacitor 301, and reduce the vibration of the target capacitor 301. Figure 13

[0223] Further, the working mode of the power supply 304 can include a running mode and a non-running mode, where the running mode can also be referred to as an active mode, and the non-running mode can also be referred to as a sleep mode. When the power supply 304 is in the running mode, the first voltage output by the power supply 304 is high level, as shown in (a) of FIG. 6. When the power supply 304 is in the non-running mode, the first voltage output by the power supply 304 is low level, as shown in (a) of FIG. 6. The power supply 304 can alternate between the running mode and the non-running mode to realize the alternating output of high level and low level. Figure 13 Figure 13

[0224] Specifically, the control unit 201 can skip the non-running mode of the power supply 304 by calling the target interface. In this way, the power supply 304 can always keep the working mode, and thus always output high level.

[0225] In this embodiment, compared with other ways of reducing the fluctuation amplitude of the first voltage output by the power supply 304, the control unit 201 controlling the power supply 304 to always output high level can cause the power consumption of the electronic device 100 to increase. When the vibration of the target capacitor 301 has been reduced, the power supply 304 can continue to output the first voltage in the manner of periodically alternating high level and low level, or other ways can be used to reduce the fluctuation amplitude of the first voltage, so as to reduce the power consumption of the electronic device 100.

[0226] In this embodiment, compared with other ways of reducing the fluctuation amplitude of the first voltage output by the power supply 304, the control unit 201 controlling the power supply 304 to always output high level can cause the power consumption of the electronic device 100 to increase. When the vibration of the target capacitor 301 has been reduced, the power supply 304 can continue to output the first voltage in the manner of periodically alternating high level and low level, or other ways can be used to reduce the fluctuation amplitude of the first voltage, so as to reduce the power consumption of the electronic device 100.

[0227] ​​​In addition, the high level of the power supply 304 is output to ensure that the power amplifier 303 can work normally. When reducing the fluctuation range of the first voltage output by the power supply 304, if the high level is reduced, the power amplifier 303 cannot work normally. Although this can reduce noise and power consumption, it will cause the communication signal to be poor, affecting the user experience.

[0228] In summary, the capacitive vibration control method provided in the embodiment reduces noise while also considering the impact on communication and power consumption. By balancing noise, communication, and power consumption, the user experience is improved.

[0229] Figure 14 is a structural block diagram of a power supply provided by an embodiment of the present application.

[0230] As shown in Figure 14 , in some implementations, the power supply 304 of the radio frequency circuit 300 in the electronic device 100 can include a power supply (battery) of the electronic device 100, a power management chip, and a radio frequency power supply. The power management chip can distribute the voltage in the battery to output the voltage in the battery to the radio frequency power supply. The power management chip can also control the timing of outputting the voltage in the battery to the radio frequency power supply. The radio frequency power supply can convert the voltage from the power management chip into a voltage required for the radio frequency circuit 300 to work, to meet the working requirements of the radio frequency circuit 300.

[0231] For example, in the electronic device 100, the power supply (battery) can be the battery 142 in Figure 7 , the power management chip can be located in the power management module 141 in Figure 7 .

[0232] In the embodiment, adjusting the fluctuation range of the first voltage output by the power supply 304 can be adjusting the fluctuation range of the first voltage output by the radio frequency power supply, adjusting the fluctuation range of the first voltage output by the power management chip to the radio frequency power supply, or adjusting both the power management chip and the radio frequency power supply, which is not limited in the embodiment.

[0233] In some implementations, when the user holds the electronic device 100 close to the ear, the vibration noise of the target capacitor 301 and the vibration feeling of the circuit board 302 are more obvious, especially when the user uses the earpiece to listen to the voice or talk, which will bring poor user experience.

[0234] Based on this, the control unit 201 is further configured to control the detection unit 202 to detect the target capacitor 301 when the electronic device 100 is in the earpiece call mode. In this way, the vibration of the target capacitor 301 can be monitored when the electronic device 100 is close to the user's ear, so as to avoid excessive vibration noise of the target capacitor 301, thereby improving the user's experience.

[0235] Further, when the electronic device 100 is in the earpiece call mode, the mobile communication antenna of the electronic device 100 is in a working state to receive and send communication signals. When the electronic device 100 is in the call mode, the electronic device 100 also sends a broadcast of entering the call state, so that other units of the electronic device 100 can know the current state of the electronic device 100. The electronic device 100 can also detect the distance between the electronic device 100 and the user by using a proximity light sensor, an infrared sensor, and a distance sensor. If it is detected that the user is close to the electronic device 100, it means that the user may be in the earpiece call mode. In addition, if the user uses the earpiece to make a call, the receiver (also known as the earpiece) of the electronic device 100 will be in a working state.

[0236] Optionally, the control unit 201 is further configured to determine that the electronic device 100 is in the earpiece call mode based on at least one of the following: detecting that at least one mobile communication antenna of the electronic device 100 is in a working state, receiving a broadcast that the electronic device 100 enters the call state, detecting that the proximity light sensor of the electronic device 100 detects a human body, and detecting that the receiver of the electronic device 100 is in a working state.

[0237] Specifically, the control unit 201 can determine that the electronic device 100 is in the earpiece call mode based on one or more of the above conditions.

[0238] In one example, if the control unit 201 detects that the receiver of the electronic device 100 is in a working state, the control unit 201 can determine that the electronic device 100 is in the earpiece call mode.

[0239] In another example, if the control unit 201 detects that at least one mobile communication antenna of the electronic device 100 is in a working state, and the control unit 201 detects that the proximity light sensor of the electronic device 100 detects a human body, the control unit 201 can determine that the electronic device 100 is in the earpiece call mode.

[0240] It should be noted that the control unit 201 determines that the electronic device 100 is in the earpiece call mode can be any combination of the above conditions, or the control unit 201 can determine in other ways, which are not limited in the present embodiment.

[0241] Figure 15 FIG. 1 is a flowchart of a capacitive vibration control method provided by an embodiment of the present application.

[0242] As shown in FIG. 1, the embodiment provides a capacitive vibration control method, which is applied to an electronic device and includes the following steps. Figure 15

[0243] In step S110, the electronic device detects a target capacitor based on a detection unit to obtain a detection result corresponding to the target capacitor.

[0244] In the embodiment, the electronic device can detect the target capacitor by using the detection unit, so as to realize real-time monitoring of the target capacitor, so as to determine whether the vibration state of the target capacitor needs to be adjusted according to the monitoring result.

[0245] In step S120, the electronic device adjusts the vibration state of the target capacitor based on a control unit according to the detection result.

[0246] In the embodiment, the electronic device can adjust the vibration state of the target capacitor by using the control unit. Meanwhile, the control unit can determine the vibration state of the target capacitor according to the detection result of the detection unit.

[0247] In the embodiment, when the circuit where the target capacitor is located works, the target capacitor will vibrate. In order to avoid that the target capacitor vibrates too much to cause large noise and affect the normal work of the circuit board, the electronic device can realize monitoring of the target capacitor by setting the detection unit and the control unit. Specifically, the electronic device can detect the target capacitor by using the detection unit, so that the electronic device can control the vibration of the target capacitor by using the control unit in the case that the target capacitor vibrates too much, so as to reduce the vibration noise of the target capacitor and the vibration of the circuit board, thereby improving the user experience.

[0248] Further, in order to avoid affecting the circuit function of the circuit where the target capacitor is located as much as possible when the electronic device controls the vibration of the target capacitor, the power consumption of the electronic device may increase. Based on this, in the case that the target capacitor is not in a working state or vibrates less, the electronic device does not control the vibration of the target capacitor, so as to avoid affecting the normal work of the target capacitor and the circuit where the target capacitor is located, and also reduce the power consumption, thereby realizing mutual balance of the power consumption of the electronic device, the circuit function and the user experience of the electronic device.

[0249] ​In some implementations, the electronic device detects the target capacitor based on the detection unit to obtain a detection result corresponding to the target capacitor, including: the detection unit detects a vibration state of the target capacitor to obtain the detection result, the detection result including an amplitude and a vibration period of the target capacitor; and the electronic device adjusts the vibration state of the target capacitor based on the control unit according to the detection result, including: the control unit reduces a voltage difference across the target capacitor to reduce the vibration of the target capacitor, when the vibration period of the target capacitor meets a preset period range and the amplitude of the target capacitor meets a preset amplitude range.

[0250] In some implementations, the electronic device detects the target capacitor based on the detection unit to obtain a detection result corresponding to the target capacitor, including: the detection unit detects a voltage difference across the target capacitor to obtain the detection result, the detection result including the voltage difference across the target capacitor and a change period of the voltage difference across the target capacitor; and the electronic device adjusts the vibration state of the target capacitor based on the control unit according to the detection result, including: the control unit reduces the voltage difference across the target capacitor to reduce the vibration of the target capacitor, when the change period of the voltage difference across the target capacitor meets a preset period range and the voltage difference across the target capacitor meets a preset voltage difference range.

[0251] In some implementations, reducing the voltage difference across the target capacitor to reduce the vibration of the target capacitor includes: the control unit adjusts an operating parameter of the radio frequency circuit to reduce the voltage difference across the target capacitor.

[0252] In some implementations, the control unit adjusts the operating parameter of the radio frequency circuit includes: the control unit reduces an operating power of the power amplifier based on the radio frequency circuit.

[0253] In some implementations, the control unit adjusts the operating parameter of the radio frequency circuit includes: the control unit reduces a fluctuation amplitude of a first voltage output by the power supply based on the radio frequency circuit.

[0254] In some implementations, the control unit reduces the fluctuation amplitude of the first voltage output by the power supply based on the radio frequency circuit includes: the control unit adjusts a control mode of the power supply from a pulse frequency modulation (PFM) mode to a pulse width modulation (PWM) mode; and the fluctuation amplitude of the first voltage of the power supply under the PFM mode control is greater than the fluctuation amplitude of the first voltage of the power supply under the PWM mode control.

[0255] In some implementations, the first voltage of the power supply includes a high level and a low level, and the high level and the low level periodically alternate; and the control unit reduces the fluctuation amplitude of the first voltage of the power supply based on the radio frequency circuit includes: the control unit increases the low level.

[0256] In some embodiments, the first voltage of the power supply includes a high level and a low level, and the high level and the low level are periodically alternated; the control unit controls the power supply to reduce the fluctuation amplitude of the first voltage of the power supply based on the radio frequency circuit, including: the control unit controls the first voltage of the power supply to remain at the high level.

[0257] In some embodiments, the first voltage of the power supply is at the high level when the power supply is in the running mode, and the first voltage of the power supply is at the low level when the power supply is in the non-running mode; the control unit controls the first voltage of the power supply to remain at the high level, including: the control unit calls the target interface to adjust the power supply from a state in which the power supply is periodically alternated between the running mode and the non-running mode to a state in which the power supply remains in the running mode, so that the first voltage of the power supply remains at the high level.

[0258] In some embodiments, the detection unit detects the vibration state of the target capacitor, including: the detection unit detects the vibration state of the circuit board based on the motion sensor detection circuit to obtain the vibration state of the target capacitor.

[0259] In some embodiments, the detection unit detects the vibration state of the target capacitor, including: the detection unit detects the vibration sound of the target capacitor based on the audio sensor to obtain the vibration state of the target capacitor based on the vibration sound.

[0260] In some embodiments, the detection unit detects the voltage difference across the target capacitor, including: the detection unit detects the voltage difference across the target capacitor based on the digital-to-analog converter.

[0261] In some embodiments, before the electronic device detects the target capacitor based on the detection unit to obtain the detection result corresponding to the target capacitor, the control unit controls the detection unit to detect the target capacitor when the electronic device is in the earpiece call mode.

[0262] In some embodiments, the control unit determines that the electronic device is in the earpiece call mode based on at least one of: detecting that at least one mobile communication antenna of the electronic device is in a working state, receiving a broadcast that the electronic device enters a call state, detecting, by a proximity light sensor of the electronic device, that a human body is close, and detecting that a receiver of the electronic device is in a working state.

[0263] It should be noted that the details of the method for controlling the vibration of the capacitor provided in this embodiment can be referred to the capacitor vibration control device, which will not be described here.

[0264] The capacitor vibration control device provided in this embodiment also includes Figure 7The electronic device 100 shown includes the capacitive vibration control apparatus 200 as described above to achieve control of the capacitive vibration, thereby reducing the capacitive vibration noise and improving the user experience.

[0265] Figure 16 is a structural block diagram of a chip system provided by an embodiment of the present application.

[0266] As Figure 16 shown, the present application also provides a chip system, for example, a system on a chip (SoC), which includes at least one processor 1601 and at least one interface circuit 1602. The processor 1601 and the interface circuit 1602 can be interconnected by a line. For example, the interface circuit 1602 can be used to receive signals from other devices (for example, the memory of the electronic device). For another example, the interface circuit 1602 can be used to send signals to other devices (for example, the processor 1601 or the touch screen of the electronic device). Illustratively, the interface circuit 1602 can read instructions stored in the memory and send the instructions to the processor 1601. When the instructions are executed by the processor 1601, the electronic device can perform various steps in the above embodiments. Of course, the chip system can also include other discrete devices, which are not specifically limited by the present application.

[0267] The present application also provides a computer readable storage medium, which includes computer instructions, when the computer instructions are run on the electronic device, the electronic device executes the capacitive vibration control method provided by the above embodiments.

[0268] The present application also provides a computer program product, which includes executable instructions, when the computer program product is run on the electronic device, the electronic device executes the capacitive vibration control method provided by the above embodiments.

[0269] Through the above description of the embodiments, those skilled in the art can clearly understand that, for the convenience and brevity of description, only the above-mentioned division of functional modules is exemplified, and in actual application, the above-mentioned functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

[0270] In several embodiments provided in the present application, it should be understood that the disclosed apparatuses / devices and methods can be implemented in other manners. For example, the embodiments of the apparatuses / devices described above are merely schematic. For example, the division of the modules or units is merely logical function division, and there can be another division manner in actual implementation. For example, a plurality of units or components can be combined or integrated into another apparatus, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between different apparatuses can be indirect couplings or communication connections through some interfaces, apparatuses or units, and can be in electrical, mechanical or other forms.

[0271] The units described as separate components can or can not be physically separate, and the components shown as units can be one physical unit or multiple physical units, i.e., can be located in one place or distributed in multiple different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiments.

[0272] In addition, each functional unit in the embodiments of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0273] When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application essentially or the part that makes a contribution to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The software product is stored in a storage medium, and includes a number of instructions for causing an apparatus (which can be a single-chip microcomputer, a chip, etc.) or a processor to perform all or part of the steps of the methods described in the embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0274] The above is merely specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed in the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A capacitor vibration control device, characterized in that, The capacitor vibration control device comprises: a control unit, a detection unit, and a target capacitor; the control unit is connected with the detection unit; the control unit is configured to control the detection unit to detect; the detection unit is configured to detect the target capacitor to obtain a detection result corresponding to the target capacitor, wherein the target capacitor is arranged adjacent to the detection unit; the control unit is further configured to adjust the vibration state of the target capacitor based on the detection result.

2. The capacitor vibration control device according to claim 1, wherein the detection unit is further configured to detect the vibration state of the target capacitor to obtain the detection result, wherein the detection result comprises the amplitude and the vibration period of the target capacitor; the control unit is further configured to reduce the voltage difference across the target capacitor to reduce the vibration of the target capacitor, when the vibration period of the target capacitor meets a preset period range and the amplitude of the target capacitor meets a preset amplitude range.

3. The capacitor vibration control device according to claim 1, wherein the detection unit is further configured to detect the voltage difference across the target capacitor to obtain the detection result, wherein the detection result comprises the voltage difference across the target capacitor and the change period of the voltage difference across the target capacitor; the control unit is further configured to reduce the voltage difference across the target capacitor to reduce the vibration of the target capacitor, when the change period of the voltage difference across the target capacitor meets a preset period range and the voltage difference across the target capacitor meets a preset voltage difference range.

4. The capacitive vibration control device of claim 1, wherein Further comprising: a radio frequency circuit; the target capacitor is arranged in the radio frequency circuit; the control unit is further configured to adjust the working parameter of the radio frequency circuit to reduce the voltage difference across the target capacitor.

5. The capacitor vibration control device according to claim 4, wherein the radio frequency circuit comprises a power amplifier; the power amplifier is connected with the target capacitor; the control unit is further configured to reduce the working power of the power amplifier to reduce the voltage difference across the target capacitor.

6. The capacitor vibration control device according to claim 4, wherein the radio frequency circuit comprises a power supply; the power supply is connected with the target capacitor; the power supply is configured to output a first voltage to the target capacitor; the control unit is further configured to reduce the fluctuation amplitude of the first voltage to reduce the voltage difference across the target capacitor.

7. The capacitor vibration control device according to claim 6, wherein the control mode of the power supply comprises a pulse frequency modulation (PFM) mode and a pulse width modulation (PWM) mode, and the fluctuation amplitude of the first voltage of the power supply in the PFM mode is greater than the fluctuation amplitude of the first voltage of the power supply in the PWM mode. The control unit is further configured to adjust the control mode of the power supply from the PFM mode to the PWM mode to reduce the fluctuation range of the first voltage of the power supply.

8. The capacitive vibration control device of claim 6, wherein The first voltage of the power supply comprises a high level and a low level, and the high level and the low level are periodically alternated; The control unit is further configured to reduce the fluctuation range of the first voltage of the power supply by increasing the low level.

9. The capacitive vibration control device of claim 6, wherein The first voltage of the power supply comprises a high level and a low level, and the high level and the low level are periodically alternated; The control unit is further configured to control the first voltage of the power supply to remain at the high level to reduce the fluctuation range of the first voltage of the power supply.

10. The capacitive vibration control device of claim 9, wherein When the power supply is in the running mode, the first voltage of the power supply is the high level; When the power supply is in the non-running mode, the first voltage of the power supply is the low level; The control unit is further configured to call a target interface to adjust the power supply from a state of periodically alternating between the running mode and the non-running mode to a state of keeping the running mode, so as to keep the first voltage of the power supply at the high level to reduce the fluctuation range of the first voltage of the power supply.

11. The capacitive vibration control device of claim 4, wherein Further comprising: a circuit board; The radio frequency circuit is integrated on the circuit board; The target capacitor is arranged on the circuit board; The detection unit comprises a motion sensor; The motion sensor is arranged on the circuit board; The motion sensor is configured to detect the vibration state of the circuit board to obtain the vibration state of the target capacitor.

12. The capacitive vibration control device of claim 2, wherein The detection unit comprises an audio sensor; The audio sensor is arranged adjacent to the target capacitor; The audio sensor is configured to detect the vibration sound of the target capacitor to obtain the vibration state of the target capacitor based on the vibration sound.

13. The capacitive vibration control device of claim 3, wherein The detection unit comprises a digital-to-analog converter; The digital-to-analog converter is connected to the target capacitor; The digital-to-analog converter is configured to detect the voltage difference across the target capacitor.

14. The capacitive vibration control device of claim 1, wherein The control unit is further configured to control the detection unit to detect the target capacitor when the electronic device is in a receiver call mode.

15. The capacitive vibration control device of claim 14, wherein The control unit is further configured to determine that the electronic device is in the earpiece call mode based on at least one of the following: detecting that at least one mobile communication antenna of the electronic device is in an active state, receiving a broadcast that the electronic device enters a call state, detecting, by a proximity light sensor of the electronic device, that a human body is close, and detecting that a receiver of the electronic device is in an active state.

16. A capacitive vibration control method, characterized by, Applied to an electronic device, comprising: The electronic device detects a target capacitor based on a detection unit, to obtain a detection result corresponding to the target capacitor; The electronic device adjusts the vibration state of the target capacitor based on the control unit according to the detection result.

17. The capacitive vibration control method of claim 16, wherein, The electronic device detects a target capacitor based on a detection unit, to obtain a detection result corresponding to the target capacitor, comprising: The detection unit detects the vibration state of the target capacitor to obtain the detection result, and the detection result includes the amplitude and vibration period of the target capacitor; The electronic device adjusts the vibration state of the target capacitor based on the control unit according to the detection result, comprising: The control unit reduces the voltage difference across the target capacitor to reduce the vibration of the target capacitor when the vibration period of the target capacitor meets a preset period range and the amplitude of the target capacitor meets a preset amplitude range.

18. The capacitive vibration control method of claim 16, wherein, The electronic device detects a target capacitor based on a detection unit, to obtain a detection result corresponding to the target capacitor, comprising: The detection unit detects the voltage difference across the target capacitor to obtain the detection result, and the detection result includes the voltage difference across the target capacitor and the change period of the voltage difference across the target capacitor; The electronic device adjusts the vibration state of the target capacitor based on the control unit according to the detection result, comprising: the control unit reduces the voltage difference across the target capacitor to reduce the vibration of the target capacitor when the change period of the voltage difference across the target capacitor meets a preset period range and the voltage difference across the target capacitor meets a preset pressure difference range.

19. The capacitive vibration control method of claim 16, wherein, Reducing the voltage difference across the target capacitor to reduce the vibration of the target capacitor, comprising: The control unit adjusts the working parameters of the radio frequency circuit to reduce the voltage difference across the target capacitor.

20. The capacitive vibration control method of claim 19, wherein, The control unit adjusts the working parameters of the radio frequency circuit, comprising: The control unit reduces the working power of the power amplifier based on the radio frequency circuit.

21. The capacitive vibration control method of claim 19, wherein, The control unit adjusts the working parameters of the radio frequency circuit, comprising: The control unit reduces the fluctuation amplitude of the first voltage output by the power supply based on the radio frequency circuit.

22. The capacitive vibration control method of claim 21, wherein, The control unit reduces the fluctuation amplitude of the first voltage output by the power supply based on the radio frequency circuit, comprising: The control unit adjusts the control mode of the power supply from a pulse frequency modulation (PFM) mode to a pulse width modulation (PWM) mode; Wherein, the fluctuation amplitude of the first voltage of the power supply under the PFM mode control is greater than the fluctuation amplitude of the first voltage of the power supply under the PWM mode control.

23. The method of claim 21, wherein the first voltage of the power supply comprises a high level and a low level, and the high level and the low level are periodically alternated; and wherein the control unit reduces the fluctuation amplitude of the first voltage of the power supply based on the radio frequency circuit comprises: increasing the low level.

24. The method of claim 21, wherein the first voltage of the power supply comprises a high level and a low level, and the high level and the low level are periodically alternated; and wherein the control unit reduces the fluctuation amplitude of the first voltage of the power supply based on the radio frequency circuit comprises: controlling the first voltage of the power supply to remain at the high level.

25. The method of claim 24, wherein the first voltage of the power supply is the high level when the power supply is in an active mode; and wherein the first voltage of the power supply is the low level when the power supply is in an inactive mode; and wherein the control unit controls the first voltage of the power supply to remain at the high level comprises: invoking a target interface to adjust the power supply from a state of periodically alternating between the active mode and the inactive mode to a state of remaining in the active mode, so that the first voltage of the power supply remains at the high level.

26. The method of claim 21, wherein the detecting the vibration state of the target capacitor comprises: detecting a vibration state of a circuit board based on a motion sensor detection circuit.

27. The method of claim 21, wherein the detecting the vibration state of the target capacitor comprises: detecting a vibration sound of the target capacitor based on an audio sensor, to obtain the vibration state of the target capacitor based on the vibration sound.

28. The method of claim 21, wherein the detecting the voltage difference across the target capacitor comprises: detecting the voltage difference across the target capacitor based on a digital-to-analog converter.

29. The method of claim 21, further comprising: before the electronic device detects the target capacitor based on the detection unit, the control unit controls the detection unit to detect the target capacitor when the electronic device is in a speakerphone mode.

30. The method of claim 29, wherein the control unit determines that the electronic device is in the speakerphone mode based on at least one of: detecting that at least one mobile communication antenna of the electronic device is in an active state; receiving a broadcast that the electronic device enters a call state; detecting, based on a proximity light sensor of the electronic device, that a human body is in proximity; and detecting that a receiver of the electronic device is in an active state.

31. The method of claim 21, further comprising: the capacitive vibration control apparatus of any one of claims 1-15. ​ ​ ​ ​ 26. The method of capacitive vibration control according to claim 17, wherein, ​ ​ 27. The method of capacitive vibration control according to claim 17, wherein, ​ ​ 28. The method of capacitive vibration control according to claim 18, wherein, ​ ​ 29. The method of capacitive vibration control according to claim 16, wherein, ​ ​ ​ ​ 31. An electronic device, comprising: ​

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