Power amplifier driving method and apparatus

Abstract

The present application relates to the technical field of electronics, and specifically relates to a power amplifier driving method and apparatus. The amplifier driving method is applied to an electronic device, the electronic device comprising a first power amplifier. The power amplifier driving method comprises: when a first voltage is greater than or equal to a second voltage, determining a third voltage on the basis of the first voltage; and driving a first power amplifier on the basis of the third voltage, wherein the third voltage is less than the second voltage, the first voltage is a driving voltage used for calibrating a first calibration point of the first power amplifier, the second voltage is a voltage when the first power amplifier experiences an overvoltage-induced hard failure, output power corresponding to the third voltage is greater than or equal to preset power, and the preset power is used for meeting the power requirement of an electronic device. By means of the method of the present application, the driving voltage of a power amplifier can be reduced, so as to prevent the power amplifier from re-experiencing an overvoltage-induced hard failure and to meet the power requirement of an electronic device.

Description

A power amplifier driving method and apparatus

[0001] This application claims priority to Chinese Patent Application No. 202411535115.0, filed with the State Intellectual Property Office of China on October 31, 2024, entitled "A Power Amplifier Driving Method and Apparatus", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of electronic technology, and in particular to a power amplifier driving method and apparatus. Background Technology

[0003] A power amplifier (PA) is an electronic component used to amplify the power of an input signal. If the drive voltage of the PA is too high, PA failure is likely to occur.

[0004] Currently, a smaller reference voltage is often selected from multiple reference voltages as the driving voltage for a power amplifier (PA) to address PA failure. However, the large differences between the multiple reference voltages can result in a driving voltage that is too low to meet the PA's power requirements. Summary of the Invention

[0005] This application provides a power amplifier driving method and apparatus for reducing the driving voltage of the power amplifier to avoid hard failure due to overvoltage and to meet the power requirements of electronic devices.

[0006] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0007] In a first aspect, a power amplifier driving method is provided, applied to an electronic device including a first power amplifier. The power amplifier driving method includes: when a first voltage is greater than or equal to a second voltage, determining a third voltage based on the first voltage; and driving the first power amplifier based on the third voltage.

[0008] The first voltage is the driving voltage used to calibrate the first calibration point of the first power amplifier. The first calibration point can be understood as the calibration point currently used by the first power amplifier. For example, the first voltage can be understood as the driving voltage currently driving the first power amplifier.

[0009] The second voltage is the voltage at which the first power amplifier experiences a hard failure due to overvoltage. The second voltage can be understood as the voltage threshold at which the first power amplifier experiences a hard failure due to overvoltage.

[0010] When the first voltage is less than the second voltage, this indicates that the electronic device uses the first voltage to drive the first power amplifier, rather than causing the first power amplifier to suffer a hard failure due to overvoltage.

[0011] When the first voltage is greater than or equal to the second voltage, it indicates that the electronic device uses the first voltage to drive the first power amplifier, causing the first power amplifier to experience an overvoltage hard failure.

[0012] To address the issue of hard failure due to overvoltage in the first power amplifier, the electronic device can determine a third voltage based on the first voltage. This third voltage, used as the drive voltage for the first power amplifier, can resolve the hard failure caused by overvoltage and also meet the power requirements of the electronic device.

[0013] Specifically, the third voltage is lower than the second voltage, indicating that the electronic device adjusts the first voltage driving the first power amplifier to a lower third voltage. The third voltage does not reach the voltage threshold for hard failure due to overvoltage in the first power amplifier. This ensures that the first power amplifier will not experience hard failure due to overvoltage again when driven by the third voltage. The output power corresponding to the third voltage is greater than or equal to a preset power. The preset power is used to meet the power requirements of the electronic device. This indicates that when the electronic device drives the first power amplifier using the third voltage, the output power of the first power amplifier will be greater than or equal to the preset power, that is, the output power of the first power amplifier can meet the power requirements of the electronic device to ensure the performance of the electronic device. Furthermore, taking an example where each of the M electronic devices includes a first power amplifier, by executing the power amplifier driving method of this application embodiment on each electronic device, the driving voltage of the first power amplifier of each of the M electronic devices can be adjusted. This ensures that the first power amplifiers of the M electronic devices will not experience hard failure due to overvoltage. Moreover, the driving voltages of the first power amplifiers of the M electronic devices still maintain a difference. That is, the differences in power requirements or performance between the M electronic devices are not disrupted.

[0014] Optionally, the preset power is less than the output power of the first calibration point but greater than the output power of the second calibration point, and the third voltage is less than the driving voltage of the first calibration point but greater than the driving voltage of the second calibration point.

[0015] The preset power is used to ensure the power requirements of the electronic device. If the preset power is less than the output power of the first calibration point but greater than the output power of the second calibration point, it indicates that the drive voltage at the first calibration point meets the power requirements of the electronic device. However, if the drive voltage is reduced from the first calibration point to the second calibration point, the output power at the second calibration point will not meet the power requirements of the electronic device.

[0016] The third voltage is less than the drive voltage of the first calibration point but greater than the drive voltage of the second calibration point (the second calibration point can be understood as a calibration point that is different from the first calibration point among several calibration points used to calibrate the first power amplifier). This indicates that the third voltage is not the drive voltage of a single calibration point, but rather the drive voltage between two calibration points.

[0017] During the process of the electronic device reducing the first voltage to the third voltage, the difference between the first voltage and the third voltage is less than the difference between the driving voltage at the first calibration point and the driving voltage at the second calibration point.

[0018] To prevent hard failure of the first power amplifier due to overvoltage, the electronic device reduces the first voltage to a third voltage, with a small reduction in the driving voltage. Therefore, it can be ensured that when the third voltage drives the first power amplifier, the output power delivered by the first power amplifier is greater than or equal to the preset power, thus meeting the power requirements of the electronic device.

[0019] Optionally, a hard failure due to overvoltage occurs in the power amplifier, typically when the drive voltage of the power amplifier is the highest among multiple calibration points. The output power at the first calibration point is the highest output power among multiple calibration points used to calibrate the first power amplifier.

[0020] Optionally, determining the third voltage based on the first voltage includes: obtaining the third voltage from the first voltmeter according to the identifier of the first power amplifier.

[0021] The first voltmeter stores the identifiers of one or more power amplifiers in the electronic device and the third voltage.

[0022] Optionally, determining the third voltage based on the first voltage includes: obtaining a preset voltage difference from a second voltmeter based on the identifier of the first power amplifier.

[0023] The second voltmeter stores the identifiers and preset voltage differences of one or more power amplifiers in the electronic device. The preset voltage difference is related to the voltage difference between two adjacent calibration points of the corresponding power amplifier.

[0024] The third voltage is determined to be the difference between the first voltage and the preset voltage difference.

[0025] Optionally, the identifier of the power amplifier includes at least one of the following: electronic equipment information, signal path, frequency band, or sub-frequency band.

[0026] Electronic device information can be used to identify the electronic device in which the power amplifier is located. An electronic device typically includes multiple power amplifiers, which are used to amplify the power of signals.

[0027] The signals of the power amplifier and the input power amplifier differ based on at least one of the signal path, frequency band, and sub-frequency band. Therefore, at least one of the signal path, frequency band, and sub-frequency band can serve as an identifier for the power amplifier. And based on this identifier, the power amplifier can be uniquely identified.

[0028] Optionally, the method further includes: updating the relevant information of the first calibration point so that the driving voltage of the first calibration point is less than the second voltage.

[0029] When the drive voltage (i.e., the first voltage) used to calibrate the first calibration point of the first power amplifier is greater than or equal to the second voltage, it indicates that the first power amplifier has experienced a hard failure due to overvoltage, and also indicates that the drive voltage at the first calibration point is too high. Therefore, the electronic device can reduce and update the drive voltage at the first calibration point so that the first power amplifier will not experience a hard failure due to overvoltage again the next time it is driven with the drive voltage at the first calibration point.

[0030] Optionally, the relevant information for the calibration point includes: input power, output power, and drive voltage.

[0031] In a second aspect, a power amplifier driving device is provided, comprising: a module for performing the method as described in any of the possible embodiments above.

[0032] Thirdly, an electronic device is provided, comprising: at least one processor; wherein the at least one processor is capable of performing the method as described in any of the possible embodiments above.

[0033] Fourthly, an electronic device is provided, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the methods in any of the above possible embodiments.

[0034] Fifthly, a chip device is provided, including a processor for invoking a computer program or instructions in the memory to cause the processor to perform the methods in any of the above possible embodiments.

[0035] Alternatively, the processor may be coupled to the memory via an interface.

[0036] In a sixth aspect, a chip is provided, comprising: an interface circuit and a logic circuit, wherein the interface circuit is used to receive signals from other chips outside the chip and transmit them to the logic circuit, or to send signals from the logic circuit to other chips outside the chip, and the logic circuit is used to implement the methods in any of the above possible embodiments.

[0037] In a seventh aspect, a computer-readable storage medium is provided, which stores a computer program or instructions configured to perform the methods in any of the above possible embodiments.

[0038] Eighthly, a computer program product is provided that, when run on a computer, causes the computer to perform the method in any of the above possible embodiments. Attached Figure Description

[0039] Figure 1 is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0040] Figure 2 is a schematic diagram of the driving voltage of a PA changing over time according to an embodiment of this application;

[0041] Figure 3 is a schematic diagram of four calibration points in an electronic device;

[0042] Figure 4 is a schematic diagram of the driving voltage of PA when each of the multiple electronic devices reaches the desired maximum output power;

[0043] Figure 5 is a schematic diagram of an electronic device according to an embodiment of this application;

[0044] Figure 6 is a flowchart of a power amplifier driving method according to an embodiment of this application;

[0045] Figure 7 is a schematic diagram of a power amplifier driving method according to an embodiment of this application;

[0046] Figure 8 is a schematic diagram of the first voltmeter;

[0047] Figure 9 is a schematic diagram of the second voltmeter;

[0048] Figure 10 is a schematic diagram of the curve of the first correlation relationship;

[0049] Figure 11 is a flowchart of an amplifier driving method according to an embodiment of this application;

[0050] Figure 12 is a schematic diagram of the structure of a power amplifier driving device according to an embodiment of this application. Detailed Implementation

[0051] The technical solutions of the embodiments of this application are described below with reference to the accompanying drawings. In the description of the embodiments of this application, the terminology used in the following embodiments is for the purpose of describing specific embodiments only and is not intended to limit the application. As used in the specification and appended claims of this application, the singular expressions "a," "the," "the," "the," and "this" are intended to also include expressions such as "one or more," unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of this application, "at least one" and "one or more" refer to one or more (including two). The term "and / or" is used to describe the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0052] Please refer to Figure 1, which is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0053] As shown in Figure 1, an electronic device may include multiple PAs. For simplicity, in the example of Figure 1, the number of PAs is n, where n is an integer greater than or equal to 2. PA-i can represent the i-th PA among the n PAs, where i is an integer greater than or equal to 1 and less than n.

[0054] The input power of PA-i can be expressed as P in-i The driving voltage of PA-i can be expressed as V cc-i The output power of PA-i can be expressed as P out-i P in-i V cc-i P out-i These three factors are interconnected. For example, output power is positively correlated with input power, and drive voltage is positively correlated with output power.

[0055] Typically, information such as the power supply (PA) configuration voltage is configured before the electronic device leaves the factory. Under normal operating conditions, the PA's drive voltage is lower than its configuration voltage. The PA's configuration voltage refers to the power supply voltage set for normal PA operation. The PA's drive voltage refers to the voltage signal input to the PA's control port.

[0056] Even in electronic devices that have already left the factory, there are still situations where the power amplifier (PA) fails due to excessive driving voltage (also known as overvoltage). For example, if the PA's driving voltage exceeds the voltage threshold, then the PA is overvoltageed. The PA's voltage threshold is the voltage value at which the PA fails.

[0057] Please refer to Figure 2, which is a schematic diagram of the driving voltage of a PA changing over time according to an embodiment of this application.

[0058] As shown in Figure 2, PA experiences hard failure due to overvoltage at points A, B, and C.

[0059] Specifically, there are software anomalies in the power supply of PA at points B and C. Software anomalies include, for example, configuration voltage exceeding voltage threshold, causing the drive voltage of PA at points B and C to exceed the voltage threshold.

[0060] In some related technologies, electronic devices can detect the configuration voltage using software algorithms after leaving the factory. If the driving voltage is too high, the electronic device uses the software algorithm to control the configuration voltage to at least reduce it to a voltage threshold. At this point, the PA's driving voltage is lower than the configuration voltage, and consequently, the PA's driving voltage is lower than the voltage threshold. This can solve the problem of hard failure due to overvoltage in the PA.

[0061] The PA's configuration voltage at point A is less than the voltage threshold, while the PA's drive voltage at point A is greater than the voltage threshold. Please refer to Figures 3 and 4, which are schematic diagrams illustrating related technologies for addressing hard failures caused by overvoltage at point A in PAs.

[0062] As shown in Figure 3, the electronic device stores information related to four calibration points, namely P1 to P4.

[0063] The number of calibration points can be set to at least 3, for example, Figure 3 shows an example with 4 calibration points.

[0064] Figure 3 schematically illustrates the curves of output power versus input power of PA under different driving voltages.

[0065] For example, R1-Vcc1 represents the relationship between output power and input power when the driving voltage of PA is voltage Vcc1. R2-Vcc2 to R4-Vcc4 are similar and will not be described again here.

[0066] P1 can be determined based on R1-Vcc1. For example, the driving voltage of P1 is the voltage Vcc1, and the input power is the power P. in-1 The output power is power P. out-1 P2, P3, and P4 are similar to P1, and will not be described in detail here.

[0067] The driving voltage, input power, and output power of P1-P4 can be decreased sequentially.

[0068] Taking the example in Figure 3, where the values ​​of Vcc1 to Vcc4 decrease sequentially, the values ​​of Vcc1 to Vcc4 are, for example, 5V, 4V, 3V, and 2V respectively. "V" is the unit of voltage, volt.

[0069] Among P1 to P4, the calibration point with the largest driving voltage is P1. The electronic device uses Vcc1 of P1 to drive PA. If Vcc1 is greater than the voltage threshold, PA will experience hard failure due to overvoltage.

[0070] In related technologies, the driving voltage of the PA is adjusted from the driving voltage Vcc1 of P1 to the driving voltage Vcc2 of P2, which is adjacent to P1. With Vcc1 at 5V and Vcc2 at 4V, the driving voltage of the PA is reduced by 1V. This causes the output power of the PA to increase from P1 to Vcc2. out-1 Reduce to P out-2 .

[0071] When Vcc2 is less than the voltage threshold, hard failure due to PA overvoltage can be resolved.

[0072] For example, the related technology shown in Figure 3 also has the following problem: the electronic device can only select the drive voltage of the calibration point to drive the PA. This means that when the PA experiences an overvoltage hard failure, in order to reduce the PA's drive voltage, the electronic device must reduce the PA's drive voltage by a range of at least the difference between the drive voltages of two adjacent calibration points.

[0073] This difference is usually large, which causes the driving voltage to decrease to a lower level. Since the driving voltage is positively correlated with the PA's output power, the PA's output power is lower when the reduced driving voltage is used to drive the PA.

[0074] The output power of a PA is related to the performance of the electronic device; for example, the output power of a PA is greater than or equal to a preset power P. th In this case, the power of the PA can meet the power requirements of the electronic equipment.

[0075] In some cases, the electronic device reduces the drive voltage of the PA by at least the difference between the drive voltages of two adjacent calibration points. This results in the PA's output power being lower than the preset power P when the reduced drive voltage is used to drive the PA. th If the power requirements of electronic devices are not met, the performance of the electronic devices will deteriorate.

[0076] In real-world scenarios, there are a large number of electronic devices shipped from the factory. For example, if there are M electronic devices, each of which includes a power amplifier (PA), and a total of M PAs (M is an integer greater than or equal to 2), the gain or input power of the M PAs will differ, and the relevant information for the calibration points written into each electronic device will be different.

[0077] Although the PA gain or input power of electronic devices may differ, the PA of each electronic device must reach a preset power to ensure that the output power of the PA meets the power requirements of the electronic device and ensures the performance of the electronic device.

[0078] Figure 4 schematically illustrates the driving voltage of the power amplifier (PA) of each of the multiple electronic devices when the device reaches a preset power. The vertical axis in Figure 4 represents the numerical value of the driving voltage, and the horizontal axis represents the PA of the electronic device.

[0079] For example, some electronic devices have low input power or gain of the PA. In order for the PA of the electronic device to reach the preset power, the driving voltage of the PA is higher.

[0080] For example, in the example in Figure 4, the drive voltage of the PA of electronic device x1 and the PA of electronic device x2 is 5V. With a voltage threshold of 5V, it is necessary to reduce the drive voltage values ​​of the PAs of electronic device x1 and electronic device x2.

[0081] For example, some electronic devices have high input power or gain of the PA (Power Amplifier). In order for the PA of the electronic device to reach the preset power, the driving voltage of the PA is low. For example, in the example in Figure 4, the driving voltage of the PA of electronic device x3 is a low 4.55V.

[0082] To address the above situation, the relevant technology only reduces the drive voltage of the specific PA. Other PAs besides the specific PA still have the risk of hard failure due to overvoltage.

[0083] Specifically, taking the aforementioned voltage threshold of 5V as an example, the relevant technology can only reduce the drive voltage of electronic devices with a drive voltage of around 5V. To ensure the power requirements of the electronic devices, the reduction in drive voltage is relatively small, for example, only 0.2V. For electronic devices with a drive voltage below 4.8V, the relevant technology will not reduce their drive voltage. This means that if the power supply of the PA experiences a software anomaly, causing the PA's drive voltage to increase, for example, the drive voltage increases to the normal voltage + ΔV (the drive voltage fluctuation range is uncertain, ΔV is, for example, 0.5V), then under the aforementioned software anomaly, the drive voltage of an electronic device that originally had a drive voltage of 4.8V can reach 5.3V, exceeding the voltage threshold of 5V. Therefore, the PA is at risk of hard failure due to overvoltage.

[0084] To address the aforementioned issues, this application provides a PA driving method.

[0085] This method applies to any single power amplifier (PA) in an electronic device. In the event of a PA experiencing a hard overvoltage failure, the electronic device can reduce the drive voltage of each PA based on the current calibration point's drive voltage. The reduced drive voltage is lower than the voltage threshold for a PA to experience a hard overvoltage failure, thus preventing further hard overvoltage failures.

[0086] In addition, when the PA is driven by the reduced driving voltage, the output power of the PA is greater than or equal to the preset power to meet the power requirements of the electronic device.

[0087] Figure 5 schematically illustrates a diagram of an electronic device according to an embodiment of this application.

[0088] The power amplifier driving method of this application embodiment is applied to the electronic device. That is, the electronic device can execute the power amplifier driving method of this application embodiment.

[0089] Electronic devices can be, for example, terminal devices, network devices, servers, etc.

[0090] Terminal devices can be understood as devices used to implement wireless communication functions. Examples of terminal devices include: smartphones, laptops, tablets, smartwatches, smart cameras, smart home products, etc.

[0091] A network device can be understood as a device that connects terminal devices to a wireless network. Network devices can include gateway devices, routers, etc.

[0092] Terminal devices and network devices can communicate via electromagnetic waves of a certain frequency band on a certain signal path (a signal path can also be understood as a channel used for communication between terminal devices and network devices).

[0093] A power amplifier (PA) in an electronic device can be used to amplify a signal along a specific signal path, or in a specific frequency band or sub-frequency band.

[0094] As shown in Figure 5, the electronic device of this application may include at least one processor 10. Figure 5 illustrates an example of an electronic device including a processor 10.

[0095] In one possible embodiment, at least one processor 10 of the electronic device may execute the power amplifier driving method of the embodiments of this application.

[0096] As shown in Figure 5, in one possible embodiment, the electronic device may further include a memory 20.

[0097] The memory 20 is communicatively connected to at least one processor 10. The memory 20 stores instructions that the at least one processor 10 executes. Execution is performed by the at least one processor 10 to enable the at least one processor 10 to perform the power amplifier driving method of the embodiments of this application.

[0098] In one possible embodiment, the electronic device may further include n PAs. The n PAs are communicatively connected to the processor. n is an integer greater than or equal to 1. Figure 5 illustrates an example of an electronic device including one PA.

[0099] In one possible embodiment, the electronic device may be a chip, which may include a processor. The chip may also include memory and / or a power amplifier (PA). The processor, memory, and PA may all be integrated circuits, etc., integrated on the chip to implement their respective functions.

[0100] The power amplifier driving method of this application embodiment can be applied to electronic devices, specifically to the processor of the electronic device. The following will use any PA in the electronic device as the first PA for illustration. Figure 6 schematically shows a flowchart of the power amplifier driving method according to an embodiment of this application.

[0101] As shown in Figure 6, the power amplifier driving method of this application embodiment may include steps S110 and S120.

[0102] S110, when the first voltage is greater than or equal to the second voltage, determine the third voltage based on the first voltage.

[0103] The third voltage is less than the second voltage. The first voltage is the driving voltage used to calibrate the first calibration point of the first power amplifier. The second voltage is the voltage under the condition that the first power amplifier has a hard failure due to overvoltage. The output power corresponding to the third voltage is greater than or equal to the preset power. The preset power is used to ensure the power requirements of the electronic device, that is, the performance requirements.

[0104] S120 drives the first power amplifier according to the third voltage.

[0105] Before leaving the factory, the electronic device stores information about several calibration points used to calibrate the first power amplifier (PA). This information may include: drive voltage, input power, and output power.

[0106] The first voltage is the driving voltage used to calibrate the first PA at the first calibration point. The first calibration point can be understood as the calibration point currently used by the first PA. For example, the first voltage can be understood as the driving voltage currently driving the first PA.

[0107] The second voltage is the voltage at which the first PA experiences a hard failure due to overvoltage. The second voltage can be understood as the voltage threshold at which the first PA experiences a hard failure due to overvoltage.

[0108] When the first voltage is less than the second voltage, this indicates that the electronic device uses the first voltage to drive the first PA, and does not cause the first PA to suffer a hard failure due to overvoltage.

[0109] When the first voltage is greater than or equal to the second voltage, it indicates that the electronic device uses the first voltage to drive the first PA, causing the first PA to experience an overvoltage hard failure.

[0110] To address the issue of hard failure due to overvoltage in the first power amplifier (PA), the electronic device can determine a third voltage based on the first voltage. This third voltage, used as the driving voltage for the first PA, can resolve the hard failure caused by overvoltage and also meet the power requirements of the electronic device.

[0111] Specifically, the third voltage is lower than the second voltage, indicating that the electronic device adjusts the first voltage driving the first PA to a lower third voltage. The third voltage does not reach the voltage threshold for the first PA to experience a hard overvoltage failure. This ensures that the first PA will not experience another hard overvoltage failure when driven by the third voltage. The output power corresponding to the third voltage is greater than or equal to a preset power. The preset power is used to meet the power requirements of the electronic device. This indicates that when the electronic device drives the first PA using the third voltage, the output power of the first PA will be greater than or equal to the preset power, meaning that the output power of the first PA can meet the power requirements of the electronic device, thus ensuring the performance of the electronic device. Furthermore, taking an example where each of the M electronic devices includes a first PA, by executing the power amplifier driving method of this application embodiment on each electronic device, the driving voltage of the first PA of each of the M electronic devices can be adjusted. This ensures that the first PAs of all M electronic devices will not experience a hard overvoltage failure. Moreover, the driving voltages of the first PAs of the M electronic devices still maintain their differences. That is, the differences in power requirements and performance among the M electronic devices are not disrupted.

[0112] In one possible embodiment, the preset power is less than the output power of the first calibration point but greater than the output power of the second calibration point, and the third voltage is less than the driving voltage of the first calibration point but greater than the driving voltage of the second calibration point.

[0113] The preset power is used to ensure the power requirements of the electronic device. If the preset power is less than the output power of the first calibration point but greater than the output power of the second calibration point, it indicates that the drive voltage at the first calibration point meets the power requirements of the electronic device. However, if the drive voltage is reduced from the first calibration point to the second calibration point, the output power at the second calibration point will not meet the power requirements of the electronic device.

[0114] The third voltage is less than the driving voltage of the first calibration point but greater than the driving voltage of the second calibration point (the second calibration point can be understood as a calibration point different from the first calibration point among several calibration points used to calibrate the first PA). This indicates that the third voltage is not the driving voltage of a single calibration point, but rather the driving voltage between two calibration points.

[0115] During the process of the electronic device reducing the first voltage to the third voltage, the difference between the first voltage and the third voltage is less than the difference between the driving voltage at the first calibration point and the driving voltage at the second calibration point.

[0116] For example, in related technologies, to avoid hard failure of the first power amplifier (PA) due to overvoltage, the electronic device reduces the first voltage to the driving voltage of the second calibration point, and the reduction in driving voltage is relatively large. This results in the first PA's output power being less than a preset threshold when driven by the driving voltage of the second calibration point, failing to meet the power requirements of the electronic device.

[0117] In this embodiment, to avoid hard failure of the first PA due to overvoltage, the electronic device reduces the first voltage to a third voltage, with a relatively small reduction in the driving voltage. Therefore, it can be ensured that when the third voltage drives the first PA, the output power emitted by the first PA is greater than or equal to a preset power, thus meeting the power requirements of the electronic device.

[0118] Figure 7 schematically illustrates a power amplifier driving method according to an embodiment of this application. The example in Figure 7 is similar to that in Figure 4.

[0119] In the example in Figure 7, the electronic device stores information for four calibration points, P1 to P4.

[0120] Taking P1 as the first calibration point and P2 as the second calibration point as an example, the electronic device in this embodiment determines the third voltage based on the first voltage. In the example of Figure 7, the third voltage is the driving voltage Vcc5 corresponding to P5. The third voltage Vcc5 is less than the driving voltage Vcc1 at the first calibration point P1 and greater than the driving voltage Vcc2 at the second calibration point P2. The output power corresponding to the third voltage is the output power P corresponding to Vcc5. out-5 The output power P corresponding to the third voltage. out-5 Greater than the preset power P th Preset power P th The output power P is greater than the second calibration point P2 out-2 .

[0121] In one possible embodiment, a hard failure due to overvoltage occurs when the PA's drive voltage is the highest among multiple calibration points. In the examples of Figures 4 and 7, the drive voltage Vcc1 at the first calibration point P1 is the highest among the four drive voltages corresponding to P1-P4. Therefore, normally, when the PA is driven by the drive voltage Vcc1 at the first calibration point P1, an overvoltage hard failure will occur. At this time, the electronic device can adjust the PA's drive voltage Vcc1 to a third voltage Vcc5, where the output power P corresponding to the third voltage Vcc5 is... out-5 Greater than or equal to the preset power P th Preset power P th The output power Vcc2 of the second calibration point P2 is greater than that of the third calibration point P2. The third voltage Vcc5 is less than the driving voltage Vcc1 of the calibration point P1 and greater than the driving voltage Vcc2 of the calibration point P2 adjacent to the calibration point P1.

[0122] In one possible embodiment, the electronic device may store a voltmeter. The third voltage may be obtained, for example, by consulting the voltmeter.

[0123] A voltmeter can take many forms. For example, one type of voltmeter (referred to herein as a first voltmeter) can store the identifiers of one or more power amplifiers in an electronic device and a third voltage. Another type of voltmeter (referred to herein as a second voltmeter) can store the identifiers of one or more power amplifiers in an electronic device and a preset voltage difference. The third voltage can be obtained from the preset voltage difference.

[0124] In one possible embodiment, the identifier of the power amplifier may include at least one of the following: electronic device information, signal path, frequency band, and sub-frequency band.

[0125] In one possible embodiment, the first voltmeter stores the identifier of one or more power amplifiers (PAs) of the electronic device and a third voltage. Determining the third voltage based on the first voltage may include: obtaining the third voltage from the first voltmeter based on the identifier of the first power amplifier.

[0126] Figure 8 schematically illustrates a first voltmeter. In the example in Figure 8, the identifier of the power amplifier stored in the first voltmeter includes electronic equipment information, signal path, frequency band, and sub-frequency band.

[0127] In the example in Figure 8, the first voltmeter also stores a third voltage.

[0128] Electronic device information can be used to identify the electronic device in which the PA (Power Amplifier) ​​is located. An electronic device typically includes multiple PAs, which are used to amplify the power of signals.

[0129] The PA and its input signal are different based on at least one of the signal path, frequency band, and sub-frequency band. Therefore, at least one of the signal path, frequency band, and sub-frequency band can serve as the identifier of the PA. Based on the PA's identifier, the PA can be uniquely identified. Each PA corresponds to its own third voltage, and the third voltage corresponding to each PA can be determined by consulting the first voltage table.

[0130] In one possible embodiment, the second voltmeter may store the identifiers and preset voltage differences of one or more power amplifiers in the electronic device. Determining the third voltage based on the first voltage may include steps S111 to S112.

[0131] S111: Obtain the preset voltage difference from the second voltmeter according to the identifier of the first power amplifier.

[0132] The preset voltage difference is related to the voltage difference between two adjacent calibration points of the corresponding power amplifier.

[0133] Following the examples in Figures 4 and 7, P1 and P2 can be considered as two adjacent calibration points, P2 and P3 as two adjacent calibration points, and P3 and P4 as two adjacent calibration points. The preset voltage difference can be used to ensure that the third voltage is less than the drive voltage of the first calibration point and greater than the drive voltage of the second calibration point.

[0134] The preset voltage difference can be configured in advance. For example, the driving voltage corresponding to the preset power can be determined based on the preset power, and the preset voltage difference can be determined based on the driving voltage and the first voltage.

[0135] S112, determine the third voltage as the difference between the first voltage and the preset voltage difference.

[0136] Figure 9 schematically illustrates a second voltmeter. In the example in Figure 9, the identification of the power amplifier stored in the second voltmeter includes electronic equipment information, signal path, frequency band, and sub-frequency band.

[0137] In the example in Figure 9, the second voltmeter also stores a preset voltage difference.

[0138] As shown in Figure 4, in one possible embodiment, when the driving voltage (i.e., the first voltage) used to calibrate the first calibration point of the first PA is greater than or equal to the second voltage, it indicates that the first PA has experienced an overvoltage hard failure, and also indicates that the driving voltage of the first calibration point is too high. Therefore, the electronic device can reduce and update the driving voltage of the first calibration point so that the first PA will not experience an overvoltage hard failure again when it is driven with the driving voltage of the first calibration point the next time.

[0139] Therefore, the power amplifier driving method may further include step S130.

[0140] S130, update the relevant information of the first calibration point so that the driving voltage of the first calibration point is less than the second voltage.

[0141] In one possible embodiment, S130 may include steps S131 and S132. Alternatively, S130 may include steps S131 and S133.

[0142] S131, determine the input power and output power corresponding to the third voltage.

[0143] In one possible embodiment, a first correlation can be fitted based on information from several calibration points stored in the electronic device. This first correlation characterizes the relationship between the PA's output power and its drive voltage.

[0144] Figure 10, following the examples in Figures 4 and 7, schematically illustrates the first correlation obtained by fitting the relevant information from P1 to P4. In the example in Figure 10, the curve Y of the first correlation is schematically shown.

[0145] For example, the output power corresponding to the third voltage can be obtained based on the correlation between the third voltage and the first voltage. Then, the input power corresponding to the third voltage can also be determined based on the output power corresponding to the third voltage.

[0146] Figure 10 also schematically illustrates an example where the third voltage is the same as the drive voltage corresponding to the preset power.

[0147] S132, replace the relevant information of the first calibration point with the third voltage, the input power corresponding to the third voltage, and the output power.

[0148] S133 sets the third voltage, the corresponding input power, and the output power to the highest priority. Therefore, the electronic device can select the highest priority third voltage to drive the first PA.

[0149] Figure 11 illustrates a flowchart of an amplifier driving method according to an embodiment of this application.

[0150] As shown in Figure 11, in one possible embodiment, the amplifier driving method includes steps S200 to S290.

[0151] S200 writes information about several calibration points into the electronic device.

[0152] The number of calibration points can be set according to requirements. Information related to each calibration point can include: input power, output power, and drive voltage.

[0153] S210, based on the relevant information of several calibration points, the first correlation relationship is obtained by fitting.

[0154] S220 generates a voltmeter based on the preset power and the first correlation relationship.

[0155] For example, the driving voltage corresponding to the preset power can be determined based on the preset power and the first correlation. Then, this driving voltage can be written into a voltage meter.

[0156] S230, Big Data Monitoring: Is the PA of electronic devices malfunctioning?

[0157] In one possible embodiment, for example, the electronic device can use a software algorithm to detect whether the power amplifier (PA) of the electronic device is abnormal.

[0158] S240, if the PA of the big data monitoring electronic device is not abnormal, call the drive voltage.

[0159] Calling the drive voltage can be understood as calling the drive voltage corresponding to the preset power in the voltage table.

[0160] S250, in the case of abnormality in the PA of electronic equipment, big data monitoring determines whether the PA of the electronic equipment has experienced a hard failure due to overvoltage.

[0161] In one possible embodiment, for example, the manufacturer of the electronic device collects maintenance information of the electronic device and determines whether the power amplifier (PA) of the electronic device has experienced an overvoltage hard failure based on the maintenance information.

[0162] It should be noted that the user has authorized the monitoring of whether the power amplifier (PA) of the electronic equipment is abnormal and the collection of maintenance information of the electronic equipment.

[0163] S260, big data monitoring shows that when the PA of an electronic device is abnormal and the PA of the electronic device has not experienced a hard failure due to overvoltage, the abnormal PA of the electronic device is integrated into the software solution.

[0164] S270, in the event that the PA of the big data monitoring electronic device is abnormal or that the PA of the electronic device has experienced a hard failure due to overvoltage, the third voltage is determined based on the first voltage.

[0165] S280, update the relevant information for the first calibration point.

[0166] In one possible embodiment, for factory-released electronic devices, the driving voltage of the PA can be updated, for example, via a software package (i.e., an installation package). Specifically, the logic related to determining the first voltage, determining the third voltage, and updating the first calibration point described in the above method embodiment is stored in the software package as code. The electronic device can run this code through the software package to determine the third voltage and update the first calibration point, etc., based on the first voltage.

[0167] S290, the third voltage drives the PA, ensuring that the PA's driving voltage does not exceed the second voltage, and the PA meets the power requirements of the electronic device.

[0168] Some steps in the embodiment shown in Figure 11 can be found in the description of the above embodiments, and will not be repeated here.

[0169] By way of example, this application also provides a power amplifier driving device.

[0170] Please refer to Figure 12, which is a schematic diagram of the structure of a power amplifier driving device provided in an embodiment of this application.

[0171] As shown in Figure 12, the power amplifier driver 1100 can exist independently or be integrated into other devices to implement the operation of the electronic device corresponding to any of the above method embodiments.

[0172] The power amplifier driving device 1100 may include a processing unit 1101. The processing unit 1101 is used to perform processing-related operations of the electronic device or the processor of the electronic device in the method embodiments described above.

[0173] In one possible embodiment, the power amplifier driver 1100 may further include a storage unit 1102. The storage unit 1102 may be used to store instructions and / or data.

[0174] Processing unit 1101 is configured to, when a first voltage is greater than or equal to a second voltage, determine a third voltage based on the first voltage, wherein the third voltage is less than the second voltage, the first voltage being a drive voltage used to calibrate a first calibration point of the first power amplifier, the second voltage being a voltage under conditions of hard failure due to overvoltage in the first power amplifier, and the output power corresponding to the third voltage being greater than or equal to a preset power, the preset power being used to meet the power requirements of the electronic device, and to drive the first power amplifier based on the third voltage.

[0175] In one possible embodiment, the preset power is less than the output power of the first calibration point but greater than the output power of the second calibration point, and the third voltage is less than the driving voltage of the first calibration point but greater than the driving voltage of the second calibration point.

[0176] In one possible embodiment, the output power of the first calibration point is the maximum output power among a plurality of calibration points used to calibrate the first power amplifier.

[0177] In one possible embodiment, the processing unit is configured to: obtain a third voltage from a first voltmeter, based on the identifier of a first power amplifier, wherein the first voltmeter stores the identifiers and third voltages of one or more power amplifiers in the electronic device.

[0178] In one possible embodiment, the processing unit is configured to: obtain a preset voltage difference from a second voltmeter based on the identifier of a first power amplifier, the second voltmeter storing the identifiers of one or more power amplifiers in the electronic device and the preset voltage difference, the preset voltage difference being related to the voltage difference between two adjacent calibration points of the corresponding power amplifier; and determine a third voltage as the difference between the first voltage and the preset voltage difference.

[0179] In one possible embodiment, the identifier of the power amplifier includes at least one of the following: electronic device information, signal path, frequency band, and sub-frequency band.

[0180] In one possible embodiment, the processing unit is further configured to: update the relevant information of the first calibration point so that the driving voltage of the first calibration point is less than the second voltage.

[0181] In one possible embodiment, the relevant information for the calibration point includes: input power, output power, and drive voltage.

[0182] It should be understood that the corresponding processes performed by each unit have been described in detail in the above method embodiments, and will not be repeated here for the sake of brevity.

[0183] The processing unit in the preceding embodiments can be implemented by at least one processor or processor-related circuitry. The storage unit can be implemented by at least one memory.

[0184] By way of example, this application also provides a computer-readable storage medium having stored thereon a method for implementing the method executed by an electronic device in the above method embodiments.

[0185] For example, when the computer program is executed by a computer, it enables the computer to implement the method performed by the electronic device in the above method embodiments.

[0186] For example, this application also provides a computer program product containing instructions that, when executed by a computer, cause the computer to perform the method executed by the electronic device in the above method embodiments.

[0187] For example, this application also provides a chip device including a processor for calling computer programs or computer instructions stored in the memory to cause the processor to perform the methods of the above embodiments.

[0188] In one possible implementation, the input of the chip device corresponds to the receiving operation in the above embodiments, and the output of the chip device corresponds to the sending operation in the above embodiments.

[0189] Optionally, the processor is coupled to the memory via an interface.

[0190] Optionally, the chip device may also include a memory that stores computer programs or computer instructions.

[0191] The processor mentioned above can be a general-purpose central processing unit, a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of a program that controls the reference signal processing method of the preceding embodiments. The memory mentioned above can be read-only memory (ROM) or other types of static storage devices capable of storing static information and instructions, such as random access memory (RAM).

[0192] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the explanations and beneficial effects of the relevant content in any of the communication devices provided above can be referred to the corresponding method embodiments provided above, and will not be repeated here.

[0193] In this application, the terminal device or network device may include a hardware layer, an operating system layer running on top of the hardware layer, and an application layer running on top of the operating system layer. The hardware layer may include hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also known as main memory). The operating system layer may be any one or more computer operating systems that implement business processing through processes, such as Linux, Unix, Android, iOS, or Windows. The application layer may include applications such as browsers, address books, word processing software, and instant messaging software.

[0194] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0195] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between apparatuses or units, and may be electrical, mechanical, or other forms.

[0196] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0197] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0198] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the essential contribution of the technical solution of this application, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the processes of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory, random access memory, magnetic disks, or optical disks.

[0199] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A power amplifier driving method, characterized in that, Applied to an electronic device, the electronic device including a first power amplifier, the method includes: When the first voltage is greater than or equal to the second voltage, a third voltage is determined based on the first voltage. The third voltage is less than the second voltage. The first voltage is the driving voltage used to calibrate the first calibration point of the first power amplifier. The second voltage is the voltage under the condition that the first power amplifier has a hard failure due to overvoltage. The output power corresponding to the third voltage is greater than or equal to a preset power. The preset power is used to meet the power requirements of the electronic device. The first power amplifier is driven according to the third voltage.

2. The method according to claim 1, characterized in that, The preset power is less than the output power of the first calibration point but greater than the output power of the second calibration point, and the third voltage is less than the driving voltage of the first calibration point but greater than the driving voltage of the second calibration point.

3. The method according to claim 1, characterized in that, The output power of the first calibration point is the maximum output power among the multiple calibration points used to calibrate the first power amplifier.

4. The method according to claim 1, characterized in that, Determining the third voltage based on the first voltage includes: The third voltage is obtained from a first voltage meter based on the identifier of the first power amplifier, wherein the first voltage meter stores the identifiers of one or more power amplifiers in the electronic device and the third voltage.

5. The method according to claim 1, characterized in that, Determining the third voltage based on the first voltage includes: From the second voltage meter, a preset voltage difference is obtained according to the identifier of the first power amplifier. The second voltage meter stores the identifiers of one or more power amplifiers in the electronic device and the preset voltage difference. The preset voltage difference is related to the voltage difference between two adjacent calibration points of the corresponding power amplifier. The third voltage is determined to be the difference between the first voltage and the preset voltage difference.

6. The method according to claim 4 or 5, characterized in that, The identifier of the power amplifier includes at least one of the following: electronic device information, signal path, frequency band, or sub-frequency band.

7. The method according to any one of claims 1-5, characterized in that, The method further includes: Update the relevant information of the first calibration point so that the driving voltage of the first calibration point is less than the second voltage.

8. The method according to claim 7, characterized in that, The relevant information for the calibration point includes: input power, output power, and drive voltage.

9. A power amplifier driver device, characterized in that, include: A module for performing the method as described in any one of claims 1-8.

10. An electronic device, characterized in that, include: At least one processor; wherein the at least one processor is capable of performing the power amplifier driving method as described in any one of claims 1-8.

11. An electronic device, characterized in that, include: At least one processor; And a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the power amplifier driving method as described in any one of claims 1-8.

12. A computer-readable storage medium, characterized in that, Includes a computer program or instructions that, when run on a computer, cause the computer to perform the power amplifier driving method as described in any one of claims 1-8.

13. A computer program product, characterized in that, The computer program product includes: a computer program or instructions that, when run on a computer, cause the computer to perform a module of the power amplifier driving method as described in any one of claims 1-8.

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