A method and device for driving a power amplifier

Abstract

The present application relates to the field of electronic technology, and specifically to a power amplifier driving method and device. The amplifier driving method is applied to an electronic device, and the electronic device includes: a first power amplifier. The power amplifier driving method includes: when the first voltage is greater than or equal to the second voltage, determining a third voltage according to the first voltage. According to the third voltage, driving the first power amplifier. The third voltage is less than the second voltage, the first voltage is a driving voltage for calibrating a first calibration point of the first power amplifier, the second voltage is a voltage in the case of a hard failure of overvoltage in the first power amplifier, and the output power corresponding to the third voltage is greater than or equal to a preset power, and the preset power is used to meet the power requirements of the electronic device. The method of the present application can reduce the driving voltage of the power amplifier to avoid the hard failure of overvoltage in the power amplifier again and meet the power requirements of the electronic device.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of electronic technology, and in particular, to a power amplifier driving method and device. Background Art

[0002] A power amplifier (PA) is an electronic component used to amplify the power of an input signal. If the driving voltage of the PA is too high, the PA may fail.

[0003] At present, a smaller reference voltage is often selected from multiple reference voltages as the PA driving voltage to solve the problem of PA failure. However, the difference between the multiple reference voltages is large, resulting in the PA driving voltage being too small to meet the PA power requirement. Summary of the invention

[0004] The present application provides a power amplifier driving method and device, which are used to reduce the driving voltage of the power amplifier to avoid the power amplifier from having a hard failure due to overvoltage again and to meet the power requirements of the electronic equipment.

[0005] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0006] In a first aspect, a power amplifier driving method is provided, which is applied to an electronic device, wherein the electronic device includes a first power amplifier, and the power amplifier driving method includes: when a first voltage is greater than or equal to a second voltage, determining a third voltage according to the first voltage, and driving the first power amplifier according to the third voltage.

[0007] The first voltage is a driving voltage for calibrating a first calibration point of the first power amplifier. The first calibration point can be understood as a calibration point currently used by the first power amplifier. For example, the first voltage can be understood as a driving voltage currently driving the first power amplifier.

[0008] The second voltage is a voltage when the first power amplifier has a hard failure due to overvoltage. The second voltage can be understood as a voltage threshold when the first power amplifier has a hard failure due to overvoltage.

[0009] 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, which does not cause a hard failure of the first power amplifier due to overvoltage.

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

[0011] In order to solve the problem of hard failure of the first power amplifier due to overvoltage, the electronic device can determine the third voltage according to the first voltage. The third voltage is used as the driving voltage of the first power amplifier to solve the hard failure of the first power amplifier due to overvoltage and meet the power requirements of the electronic device.

[0012] Specifically, the third voltage is less than the second voltage, which indicates 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 of the first power amplifier's hard failure due to overvoltage. This makes it so that the third voltage drives the first power amplifier, and the first power amplifier will not have a hard failure due to overvoltage again. The output power corresponding to the third voltage is greater than or equal to the preset power. The preset power is used to meet the power requirements of the electronic device. This shows 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. In addition, an example is given in which each of the M electronic devices includes a first power amplifier. By executing the power amplifier driving method of the embodiment of the present application on each electronic device, the driving voltage of the first power amplifier of each electronic device in the M electronic devices can be adjusted. This makes it so that the first power amplifiers of the M electronic devices will not have a hard failure due to overvoltage. Moreover, the driving voltages of the first power amplifiers of the M electronic devices still maintain differences. That is, the power requirement differences or performance differences between the M electronic devices will not be destroyed.

[0013] Optionally, the preset power is less than the output power at the first calibration point and greater than the output power at the second calibration point, and the third voltage is less than the driving voltage at the first calibration point and greater than the driving voltage at the second calibration point.

[0014] The preset power is used to ensure the power requirement of the electronic device. The preset power is less than the output power of the first calibration point and greater than the output power of the second calibration point, which indicates that the driving voltage at the first calibration point meets the power requirement of the electronic device, and after the driving voltage is reduced from the first calibration point to the second calibration point, the output power at the second calibration point cannot meet the power requirement of the electronic device.

[0015] The third voltage is less than the driving voltage of the first calibration point and 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 power amplifier). This indicates that the third voltage is not the driving voltage of a certain calibration point, but a driving voltage between two calibration points.

[0016] In 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 smaller than the difference between the driving voltage at the first calibration point and the driving voltage at the second calibration point.

[0017] In order to avoid a hard failure of the first power amplifier due to overvoltage, the electronic device reduces the first voltage to the third voltage, and the driving voltage is reduced by a small amount. Therefore, it can be ensured that when the third voltage drives the first power amplifier, the output power emitted by the first power amplifier is greater than or equal to the preset power to meet the power requirement of the electronic device.

[0018] Optionally, the power amplifier has a hard failure due to overvoltage, which usually occurs when the driving voltage of the power amplifier is the maximum driving voltage among multiple calibration points. The output power of the first calibration point is the maximum output power among multiple calibration points used to calibrate the first power amplifier.

[0019] Optionally, determining the third voltage according to the first voltage includes: acquiring the third voltage from a first voltage table according to an identifier of the first power amplifier.

[0020] The first voltage table stores the identification of one or more power amplifiers in the electronic device and the third voltage.

[0021] Optionally, determining the third voltage according to the first voltage includes: acquiring a preset voltage difference from a second voltage table according to an identifier of the first power amplifier.

[0022] The second voltage table stores identifications of one or more power amplifiers in the electronic device and a preset voltage difference, where the preset voltage difference is related to a voltage difference between two adjacent calibration points of the corresponding power amplifier;

[0023] The third voltage is determined to be a difference between the first voltage and a preset voltage difference.

[0024] Optionally, the identification of the power amplifier includes at least one of the following: electronic device information, a signal path, a frequency band, or a sub-frequency band.

[0025] The electronic device information can be used to identify the electronic device where the power amplifier is located. An electronic device usually includes a plurality of power amplifiers, and the power amplifier is used to amplify the power of a signal.

[0026] Based on at least one of the signal path, frequency band, and sub-frequency band, the power amplifier and the signal input to the power amplifier are different. Therefore, at least one of the signal path, frequency band, and sub-frequency band can be used as an identifier of the power amplifier. And according to the identifier of the power amplifier, the power amplifier can be uniquely determined.

[0027] Optionally, the method further includes: updating relevant information of the first calibration point so that the driving voltage of the first calibration point is less than the second voltage.

[0028] When the driving voltage (i.e., the first voltage) of the first calibration point used to calibrate the first power amplifier is greater than or equal to the second voltage, it indicates that the first power amplifier has a hard failure due to overvoltage, and also indicates that the driving voltage at the first calibration point is too large, so the electronic device can reduce and update the driving voltage at the first calibration point, so that the first power amplifier will not have a hard failure due to overvoltage again when the first power amplifier is driven by the driving voltage at the first calibration point next time.

[0029] Optionally, the relevant information of the calibration point includes: input power, output power and driving voltage.

[0030] In a second aspect, a power amplifier driving device is provided, comprising: a module for executing a method as in any possible embodiment described above.

[0031] According to a third aspect, an electronic device is provided, comprising: at least one processor; wherein the at least one processor is capable of executing a method as described in any possible embodiment described above.

[0032] In a fourth aspect, 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, and the instructions are executed by the at least one processor so that the at least one processor can execute a method in any possible embodiment described above.

[0033] In a fifth aspect, a chip device is provided, comprising a processor, configured to call a computer program or instruction in the memory so that the processor executes a method in any possible embodiment described above.

[0034] Optionally, the processor is coupled to the memory via an interface.

[0035] 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 method in any possible embodiment described above.

[0036] In a seventh aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program or instructions, and the computer program or instructions are configured to execute a method in any possible embodiment described above.

[0037] In an eighth aspect, a computer program product is provided, which, when executed on a computer, enables the computer to execute a method in any possible embodiment described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0039] Figure 2 A schematic diagram of a curve showing a driving voltage of a PA varying with time provided in an embodiment of the present application;

[0040] Figure 3 A schematic diagram of four calibration points in an electronic device;

[0041] Figure 4 A schematic diagram of a driving voltage of a PA when each of the multiple electronic devices reaches a desired maximum output power;

[0042] Figure 5 A schematic diagram of an electronic device according to an embodiment of the present application;

[0043] Figure 6 A flowchart of a power amplifier driving method according to an embodiment of the present application;

[0044] Figure 7 A schematic diagram of a power amplifier driving method according to an embodiment of the present application;

[0045] Figure 8 is a schematic diagram of a first voltmeter;

[0046] Fig. 9 is a schematic diagram of a second voltmeter;

[0047] Fig.10 is a curve diagram of the first correlation relationship;

[0048] Fig.11 A flowchart of an amplifier driving method according to an embodiment of the present application;

[0049] Fig.12 A schematic diagram of the structure of a power amplifier driving device according to an embodiment of the present application. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application. Among them, in the description of the embodiments of the present application, the terms used in the following embodiments are only for the purpose of describing specific embodiments, and are not intended to be used as limitations on the present application. As used in the specification and the appended claims of the present application, the singular expressions "a", "said", "above", "the" and "this" are intended to also include expressions such as "one or more", unless there is a clear contrary indication in the context. It should also be understood that in the following embodiments of the present application, "at least one", "one or more" refer to one or more (including two). The term "and / or" is used to describe the association relationship of associated objects, indicating that three relationships can exist; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0051] See also Figure 1 , Figure 1 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0052] like Figure 1 As shown, the electronic device may include multiple PAs. Figure 1 In the example, the number of the multiple PAs is n, where n is an integer greater than or equal to 2. PA-i may represent the i-th PA among the n PAs, where i is an integer greater than or equal to 1 and less than n.

[0053] 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 There is a correlation between these three. For example, the output power is positively correlated with the input power, and the driving voltage is positively correlated with the output power.

[0054] Usually, information such as the PA configuration voltage has been configured before the electronic device leaves the factory. When the PA is working normally, the PA driving voltage is less than the configuration voltage. The PA configuration voltage refers to the power supply voltage set to make the PA work normally. The PA driving voltage refers to the voltage signal input to the control port of the PA.

[0055] For electronic devices that have already left the factory, there are still situations where the PA fails due to excessive driving voltage (also called overvoltage). For example, if the driving voltage of the PA is greater than the voltage threshold, the PA is overvoltage. The voltage threshold of the PA is the voltage value when the PA fails.

[0056] See also Figure 2 , Figure 2 A schematic diagram of a curve showing the variation of a driving voltage of a PA over time provided in an embodiment of the present application.

[0057] like Figure 2 As shown, PA fails due to overvoltage at points A, B, and C.

[0058] Specifically, there are software anomalies at B and C of the power supply of the PA, and the software anomalies include, for example: the configuration voltage is greater than the voltage threshold, resulting in the driving voltage of the PA at B and C being greater than the voltage threshold.

[0059] In some related technologies, after leaving the factory, electronic equipment can detect the configuration voltage through software algorithms. When the driving voltage is high, the electronic equipment controls the configuration voltage to at least reduce it to a voltage threshold through software algorithms. At this time, the PA driving voltage is less than the configuration voltage, and then the PA driving voltage is less than the voltage threshold. This can solve the hard failure of PA overvoltage.

[0060] The configuration voltage of PA at A is less than the voltage threshold, and the driving voltage of PA at A is greater than the voltage threshold. Figure 3 and Figure 4 , Figure 3 and Figure 4 Schematic diagram of the related technology for solving the hard failure of PA caused by overvoltage at A.

[0061] like Figure 3 As shown, the electronic device stores relevant information of four calibration points, which are P1 to P4.

[0062] The number of calibration points can be set to be at least greater than 3, for example. Figure 3 is an example of 4 calibration points.

[0063] like Figure 3 As shown, it schematically shows a curve diagram between the output power and the input power of the PA under different driving voltages.

[0064] For example, R1-Vcc1 represents the relationship between the output power and the input power when the driving voltage of the PA is the voltage Vcc1. R2-Vcc2 to R4-Vcc4 are similar and will not be described in detail here.

[0065] P1 can be determined according to R1-Vcc1. For example, the driving voltage of P1 is voltage Vcc1, and the input power is 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.

[0066] The driving voltage, input power, and output power of P1-P4 may be decreased in sequence, for example.

[0067] by Figure 3 In the example, the values ​​of Vcc1 to Vcc4 decrease in sequence. The values ​​of Vcc1 to Vcc4 are, for example, 5V, 4V, 3V, and 2V, respectively. "V" is a voltage unit, volt.

[0068] Among P1 to P4, the calibration point with the maximum driving voltage is P1. The electronic device uses Vcc1 of P1 to drive PA. When Vcc1 is greater than the voltage threshold, PA will have a hard failure due to overvoltage.

[0069] In the related art, the driving voltage of PA is adjusted from the driving voltage Vcc1 of P1 to the driving voltage Vcc2 of P2 adjacent to P1. When Vcc1 is 5V and Vcc2 is 4V, the driving voltage of PA is reduced by 1V. This makes the output power of PA increase from P1 to P2. out-1 Reduce to P out-2 .

[0070] When Vcc2 is less than the voltage threshold, the PA overvoltage hard failure can be resolved.

[0071] For example Figure 3 The related art shown in the figure also has the following problem: the electronic device can only select the driving voltage of the calibration point to drive the PA. This means that when the PA has an overvoltage hard failure, in order to reduce the driving voltage of the PA, the electronic device reduces the driving voltage of the PA by at least the difference between the driving voltages of two adjacent calibration points.

[0072] Usually, the difference is large, which reduces the value of the driving voltage to a lower level. Since the driving voltage is positively correlated with the output power of the PA, when the reduced driving voltage is used to drive the PA, the output power of the PA is lower.

[0073] The output power of the PA is related to the performance of the electronic device. For example, the output power of the PA is greater than or equal to the preset power P th In this case, the power of the PA can meet the power requirements of the electronic equipment.

[0074] In some cases, the span of the driving voltage of the PA reduced by the electronic device is at least the difference between the driving voltages of two adjacent calibration points, so that when the reduced driving voltage is used to drive the PA, the output power of the PA is lower than the preset power P th , which fails to meet the power requirements of electronic devices, resulting in deterioration of the performance of electronic devices.

[0075] In actual scenarios, a large number of electronic devices are shipped out of the factory. Take M electronic devices, each of which includes a PA, with a total of M PAs as an example (M is an integer greater than or equal to 2). The gains or input powers of the M PAs are different, and the relevant information of the calibration points written into each electronic device is different.

[0076] Although the PA gain or input power of electronic devices is different, the PA of each electronic device needs to reach a preset power to ensure that the output power of the PA meets the power requirement of the electronic device and ensure the performance of the electronic device.

[0077] Figure 4 The driving voltage of the PA of each electronic device in multiple electronic devices is schematically shown when the preset power is reached. Figure 4 The vertical axis represents the value of the driving voltage, and the horizontal axis represents the identifier of the PA of the electronic device.

[0078] For example, the input power or gain of the PA of some electronic devices is relatively small. In order to make the PA of the electronic device reach a preset power, the driving voltage of the PA is relatively high.

[0079] For example, Figure 4 In the example, the driving voltage of the PA of the electronic device x1 and the PA of the electronic device x2 is 5 V. When the voltage threshold is 5 V, the driving voltage values ​​of the PA of the electronic device x1 and the PA of the electronic device x2 need to be reduced.

[0080] For another example, the input power or gain of the PA of some electronic devices is relatively large, and in order to make the PA of the electronic device reach the preset power, the driving voltage of the PA is relatively low. Figure 4 In the example shown in FIG. 1 , the driving voltage of the PA of electronic device x3 is a lower 4.55V.

[0081] In view of the above situation, the related art only reduces the driving voltage of a specific PA, while other PAs except the specific PA still have the risk of hard failure due to overvoltage.

[0082] Specifically, taking the above-mentioned voltage threshold of 5V as an example, the related technology can only reduce the driving voltage of electronic devices with a voltage of about 5V. In order to ensure the power requirements of electronic devices, the driving voltage is reduced at a low level, for example, the driving voltage is only reduced by 0.2V. For electronic devices with a driving voltage lower than 4.8V, the related technology does not reduce its driving voltage. This means that if a software anomaly occurs in the power supply of the PA, the driving voltage of the PA will increase, for example, the driving voltage increases to the normal voltage + △V (the driving voltage jump range is uncertain, △V is, for example, 0.5V). In this way, in the above-mentioned software anomaly, the driving voltage of an electronic device originally driven by 4.8V can reach 5.3V, exceeding the voltage threshold of 5V. As a result, the PA is at risk of hard failure due to overvoltage.

[0083] Based on the above problems, an embodiment of the present application provides a PA driving method.

[0084] This method is for any PA of an electronic device. In the case of a PA hard failure due to overvoltage, the electronic device can reduce the driving voltage of each PA of the electronic device based on the driving voltage of the current calibration point. The reduced driving voltage is less than the voltage threshold of the PA hard failure due to overvoltage. Thus, the PA can be prevented from having a hard failure due to overvoltage again.

[0085] 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 requirement of the electronic device.

[0086] Figure 5 The figure schematically shows a schematic diagram of an electronic device according to an embodiment of the present application.

[0087] The power amplifier driving method of the embodiment of the present application is applied to the electronic device, that is, the electronic device can execute the power amplifier driving method of the embodiment of the present application.

[0088] The electronic device may be, for example, a terminal device, a network device, a server, etc.

[0089] Terminal devices can be understood as devices used to implement wireless communication functions. Terminal devices may include, for example, smart phones, portable computers, tablet computers, smart watches, smart cameras, smart home products, etc.

[0090] A network device can be understood as a device that connects a terminal device to a wireless network. Network devices may include: gateway devices, routers, etc.

[0091] The terminal device and the network device can communicate with each other through electromagnetic waves of a certain frequency band on a certain signal path (the signal path can also be understood as a channel used for communication between the terminal device and the network device).

[0092] The PA of an electronic device may be used, for example, to amplify a signal in a certain signal path or a certain frequency band or a certain sub-frequency band.

[0093] like Figure 5 As shown, the electronic device of the present application may include: at least one processor 10. Figure 5 An example in which the electronic device includes one processor 10 is shown.

[0094] In a possible embodiment, at least one processor 10 of the electronic device may execute the power amplifier driving method of the embodiment of the present application.

[0095] like Figure 5 As shown, in a possible embodiment, the electronic device may further include: a memory 20.

[0096] The memory 20 is in communication connection with at least one processor 10. The memory 20 stores instructions executed by at least one processor 10. The instructions are executed by at least one processor 10 so that at least one processor 10 can execute the power amplifier driving method of the embodiment of the present application.

[0097] In a possible embodiment, the electronic device may further include n PAs. The n PAs are communicatively connected to the processor, where n is an integer greater than or equal to 1. Figure 5 An example is shown in which an electronic device includes one PA.

[0098] In a possible embodiment, the electronic device may be a chip, which may include a processor. The chip may also include a memory and / or a PA. The processor, the memory, and the PA may all be integrated circuits integrated on the chip for implementing corresponding functions.

[0099] The power amplifier driving method of the embodiment of the present application can be applied to electronic devices, and specifically can be applied to a processor of an electronic device. In the following, any PA in the electronic device is used as the first PA for illustration. Figure 6 The flowchart of the power amplifier driving method according to the embodiment of the present application is schematically shown.

[0100] like Figure 6 As shown, the power amplifier driving method of the embodiment of the present application may include: step S110 and step S120.

[0101] S110, when the first voltage is greater than or equal to the second voltage, determine a third voltage according to the first voltage.

[0102] The third voltage is less than the second voltage, the first voltage is a driving voltage for calibrating a first calibration point of the first power amplifier, the second voltage is a voltage when the first power amplifier fails due to overvoltage, and the output power corresponding to the third voltage is greater than or equal to a preset power, and the preset power is used to ensure the power requirements of the electronic device, that is, the performance requirements.

[0103] S120, driving the first power amplifier according to the third voltage.

[0104] Before the electronic device leaves the factory, the electronic device stores information related to several calibration points used to calibrate the first PA. The information related to the calibration points may include: driving voltage, input power, and output power.

[0105] The first voltage is a driving voltage of a first calibration point for calibrating the first PA. The first calibration point can be understood as a calibration point currently used by the first PA. For example, the first voltage can be understood as a driving voltage currently driving the first PA.

[0106] The second voltage is a voltage when the first PA has a hard failure due to overvoltage. The second voltage can be understood as a voltage threshold when the first PA has a hard failure due to overvoltage.

[0107] 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, which does not cause a hard failure of the first PA due to overvoltage.

[0108] When the first voltage is greater than or equal to the second voltage, this indicates that the electronic device uses the first voltage to drive the first PA, causing the first PA to suffer a hard failure due to overvoltage.

[0109] In order to solve the problem of hard failure of the first PA due to overvoltage, the electronic device can determine the third voltage according to the first voltage. The third voltage is used as the driving voltage of the first PA to solve the hard failure of the first PA due to overvoltage and meet the power requirements of the electronic device.

[0110] Specifically, the third voltage is less than the second voltage, which indicates 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 of the first PA's hard failure due to overvoltage. This makes it so that the third voltage drives the first PA, and the first PA will not have a hard failure due to overvoltage again. The output power corresponding to the third voltage is greater than or equal to the preset power. The preset power is used to meet the power requirements of the electronic device. This shows 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, that is, the output power of the first PA can meet the power requirements of the electronic device to ensure the performance of the electronic device. In addition, it is still taken as an example that each of the M electronic devices includes the first PA. By executing the power amplifier driving method of the embodiment of the present application on each electronic device, the driving voltage of the first PA of each electronic device in the M electronic devices can be adjusted. This makes it so that the first PA of the M electronic devices will not have a hard failure due to overvoltage. In addition, the driving voltages of the first PAs of the M electronic devices still remain different. That is, the power requirement differences and performance differences between the M electronic devices will not be destroyed.

[0111] In a possible embodiment, the preset power is less than the output power at the first calibration point and greater than the output power at the second calibration point, and the third voltage is less than the driving voltage at the first calibration point and greater than the driving voltage at the second calibration point.

[0112] The preset power is used to ensure the power requirement of the electronic device. The preset power is less than the output power of the first calibration point and greater than the output power of the second calibration point, which indicates that the driving voltage at the first calibration point meets the power requirement of the electronic device, and after the driving voltage is reduced from the first calibration point to the second calibration point, the output power at the second calibration point cannot meet the power requirement of the electronic device.

[0113] The third voltage is less than the driving voltage of the first calibration point and 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 certain calibration point, but a driving voltage between two calibration points.

[0114] In 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 smaller than the difference between the driving voltage at the first calibration point and the driving voltage at the second calibration point.

[0115] For example, in the related art, in order to avoid a hard failure of the first PA due to overvoltage, the electronic device reduces the first voltage to the driving voltage of the second calibration point, and the driving voltage reduction is relatively large. As a result, when the first PA is driven by the driving voltage of the second calibration point, the output power of the first PA is less than a preset threshold value, and cannot meet the power requirement of the electronic device.

[0116] In the embodiment of the present application, in order to avoid the first PA from having a hard failure due to overvoltage, the electronic device reduces the first voltage to the third voltage, and the driving voltage is reduced by a small amount. 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 the preset power to meet the power requirement of the electronic device.

[0117] Figure 7 A schematic diagram schematically shows a power amplifier driving method according to an embodiment of the present application. Figure 7 Examples with Figure 4 similar.

[0118] exist Figure 7 In the example of FIG. 1 , the electronic device stores information related to four calibration points, which are P1 to P4.

[0119] For example, the first calibration point is P1 and the second calibration point is P2. The electronic device of the embodiment of the present application determines the third voltage according to the first voltage. Figure 7 In the example, 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 Greater than the output power P of the second calibration point P2 out-2 .

[0120] In a possible embodiment, a PA has a hard failure due to overvoltage, which usually occurs when the driving voltage of the PA is the maximum driving voltage among multiple calibration points. Figure 4 and Figure 7 In the example, the driving voltage Vcc1 of the first calibration point P1 is the largest of the four driving voltages corresponding to P1-P4. Therefore, under normal circumstances, when the driving voltage Vcc1 of the first calibration point P1 drives the PA, the PA will have a hard failure due to overvoltage. At this time, the electronic device can adjust the driving voltage Vcc1 of the PA to the third voltage Vcc5. 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 third voltage Vcc5 is smaller than the driving voltage Vcc1 of the calibration point P1 and larger than the driving voltage Vcc2 of the calibration point P2 adjacent to the calibration point P1.

[0121] In a possible embodiment, the electronic device may store a voltage table. The third voltage may be obtained by querying the voltage table, for example.

[0122] The voltmeter may be in various forms. For example, one form of voltmeter (referred to herein as the first voltmeter) may store the identifiers of one or more power amplifiers of the electronic device and the third voltage. Another form of voltmeter (referred to herein as the second voltmeter) may store the identifiers of one or more power amplifiers in the electronic device and a preset voltage difference. The third voltage may be obtained based on the preset voltage difference.

[0123] In a possible embodiment, the identification of the power amplifier may include at least one of the following: electronic device information, a signal path, a frequency band, and a sub-frequency band.

[0124] In a possible embodiment, the first voltage table stores the identifier of one or more PAs of the electronic device and the third voltage. Determining the third voltage according to the first voltage may include: acquiring the third voltage from the first voltage table according to the identifier of the first power amplifier.

[0125] Figure 8 A schematic diagram of a first voltmeter is schematically shown. Figure 8 In the example, the identification of the power amplifier stored in the first voltage table includes electronic device information, signal path, frequency band, and sub-frequency band.

[0126] exist Figure 8 In the example, the first voltage table further stores a third voltage.

[0127] The electronic device information can be used to identify the electronic device where the PA is located. An electronic device usually includes multiple PAs, and the PA is used to amplify the power of a signal.

[0128] Based on at least one of the signal path, frequency band, and sub-frequency band, the PA and the signal input to the PA are different. Therefore, at least one of the signal path, frequency band, and sub-frequency band can be used as an identifier of the PA. And according to the identifier of the PA, the PA can be uniquely determined. Each PA corresponds to its own third voltage, and then the third voltage corresponding to each PA can be determined by querying the first voltage table.

[0129] In a possible embodiment, the second voltage table may store identifications of one or more power amplifiers in the electronic device and a preset voltage difference. Determining the third voltage according to the first voltage may include: Step S111 to Step S112.

[0130] S111, obtaining a preset voltage difference from a second voltage table according to an identifier of the first power amplifier.

[0131] The preset voltage difference is related to the voltage difference between two adjacent calibration points of the corresponding power amplifier.

[0132] Continue to use Figure 4 and Figure 7 In the example of , P1 and P2 can be considered as two adjacent calibration points, P2 and P3 can be considered as two adjacent calibration points, and P3 and P4 can be considered as two adjacent calibration points. The preset voltage difference can be used to ensure that the third voltage is less than the driving voltage of the first calibration point and greater than the driving voltage of the second calibration point.

[0133] The preset voltage difference may be preconfigured, for example, by determining a driving voltage corresponding to the preset power according to the preset power, and determining the preset voltage difference according to the driving voltage and the first voltage.

[0134] S112, determining the third voltage to be the difference between the first voltage and the preset voltage difference.

[0135] Fig. 9 A schematic diagram of a second voltmeter is schematically shown. Fig. 9 In the example, the identification of the power amplifier stored in the second voltage table includes electronic device information, signal path, frequency band, and sub-frequency band.

[0136] exist Fig. 9 In the example, the second voltage table also stores a preset voltage difference.

[0137] like Figure 4 As shown, in a possible embodiment, when the driving voltage (i.e., the first voltage) of the first calibration point used to calibrate the first PA is greater than or equal to the second voltage, it indicates that the first PA has a hard failure due to overvoltage, and also indicates that the driving voltage of the first calibration point is too large, so the electronic device can reduce and update the driving voltage of the first calibration point. This ensures that the first PA will not have a hard failure due to overvoltage again when the first PA is driven by the driving voltage of the first calibration point next time.

[0138] Therefore, the power amplifier driving method may further include: step S130.

[0139] S130, updating relevant information of the first calibration point so that the driving voltage of the first calibration point is less than the second voltage.

[0140] In a possible embodiment, S130 may include: step S131 and step S132. Alternatively, S130 may include: step S131 and step S133.

[0141] S131, determining input power and output power corresponding to the third voltage.

[0142] In a possible embodiment, for example, the first correlation relationship may be obtained by fitting according to relevant information of a plurality of calibration points stored in the electronic device. The first correlation relationship represents the relationship between the output power of the PA and the driving voltage.

[0143] Fig.10 Continue to use Figure 4 and Figure 7 This example schematically shows a schematic diagram of a first association relationship obtained by fitting the relevant information of P1 to P4. Fig.10 In the example of , a curve Y of the first association relationship is schematically shown.

[0144] For example, the output power corresponding to the third voltage can be obtained according to the third voltage and the first association relationship. Then, the input power corresponding to the third voltage can also be determined according to the output power corresponding to the third voltage.

[0145] exist Fig.10 In the figure, an example is schematically shown in which the third voltage is the same as the driving voltage corresponding to the preset power.

[0146] S132, replacing the relevant information of the first calibration point with the third voltage, and the input power and output power corresponding to the third voltage.

[0147] S133, setting the third voltage, the input power corresponding to the third voltage, and the output power to the highest priority. Thus, the electronic device can select the third voltage with the highest priority to drive the first PA.

[0148] Fig.11 The flowchart of the amplifier driving method according to an embodiment of the present application is exemplarily shown.

[0149] like Fig.11 As shown, in a possible embodiment, the amplifier driving method includes: step S200 to step S290.

[0150] S200, writing relevant information of a plurality of calibration points into the electronic device.

[0151] The number of calibration points can be set as required. The relevant information of the calibration points may include: input power, output power and drive voltage.

[0152] S210: fitting a first correlation relationship according to relevant information of a plurality of calibration points.

[0153] S220, generating a voltage table according to the preset power and the first association relationship.

[0154] For example, the driving voltage corresponding to the preset power can be determined according to the preset power and the first association relationship, and then the driving voltage can be written into the voltage table.

[0155] S230, big data monitors whether the PA of the electronic device is abnormal.

[0156] In a possible embodiment, for example, the electronic device may use a software algorithm to detect whether the PA of the electronic device is abnormal.

[0157] S240, when the big data monitoring electronic device PA shows no abnormality, the driving voltage is called.

[0158] Calling the driving voltage can be understood as calling the driving voltage corresponding to the preset power in the voltage table.

[0159] S250, when the big data monitoring PA of the electronic device is abnormal, determine whether the PA of the electronic device has a hard failure of overvoltage.

[0160] In a possible embodiment, for example, the manufacturer of the electronic device collects maintenance information of the electronic device, and determines whether a PA of the electronic device has a hard failure due to overvoltage based on the maintenance information of the electronic device.

[0161] It should be noted that monitoring whether the PA of the electronic device is abnormal and collecting the maintenance information of the electronic device have been authorized by the user.

[0162] S260, when the PA of the electronic device monitored by big data shows an abnormality and the PA of the electronic device does not suffer a hard failure due to overvoltage, the PA abnormality of the electronic device is incorporated into the software solution.

[0163] S270, when the big data monitoring shows that the PA of the electronic device is abnormal or the PA of the electronic device has a hard failure due to overvoltage, a third voltage is determined based on the first voltage.

[0164] S280, updating relevant information of the first calibration point.

[0165] In a possible embodiment, for an electronic device that has been shipped, the driving voltage of the PA can be updated, for example, by updating a software package (i.e., an installation package). Specifically, the first voltage, the determination of the third voltage, and the logic for updating the first calibration point in the above method embodiment are stored in the software package in the form of code. The electronic device can run the code through the software package to determine the third voltage and update the first calibration point based on the first voltage, etc.

[0166] S290, driving the PA with a third voltage so that the driving voltage of the PA does not exceed the second voltage, and the PA meets the power requirement of the electronic device.

[0167] Fig.11 For some steps in the illustrated embodiment, reference can be made to the description of the above embodiment and will not be repeated here.

[0168] Exemplarily, the present application also provides a power amplifier driving device.

[0169] See also Fig.12 , Fig.12 A schematic diagram of the structure of a power amplifier driving device provided in an embodiment of the present application.

[0170] like Fig.12 As shown, the power amplifier driving device 1100 can exist independently or be integrated into other devices to implement the operation corresponding to the electronic device in any of the above method embodiments.

[0171] The power amplifier driving device 1100 may include: a processing unit 1101. The processing unit 1101 is used to execute operations related to processing of the electronic device or the processor of the electronic device in the above method embodiments.

[0172] In a possible embodiment, the power amplifier driving device 1100 may further include a storage unit 1102. The storage unit 1102 may be used to store instructions and / or data.

[0173] The processing unit 1101 is configured to determine a third voltage according to the first voltage when the first voltage is greater than or equal to the second voltage, the third voltage is less than the second voltage, the first voltage is a driving voltage for calibrating a first calibration point of the first power amplifier, the second voltage is a voltage when 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, and the preset power is used to meet the power requirement of the electronic device. And the first power amplifier is driven according to the third voltage.

[0174] In a possible embodiment, the preset power is less than the output power at the first calibration point and greater than the output power at the second calibration point, and the third voltage is less than the driving voltage at the first calibration point and greater than the driving voltage at the second calibration point.

[0175] In a possible embodiment, the output power of the first calibration point is a maximum output power among a plurality of calibration points used to calibrate the first power amplifier.

[0176] In a possible embodiment, the processing unit is used to: obtain the third voltage from a first voltage table according to an identifier of the first power amplifier, wherein the first voltage table stores identifiers of one or more power amplifiers in the electronic device and the third voltage.

[0177] In a possible embodiment, the processing unit is used to: obtain a preset voltage difference from a second voltmeter based on an identifier of a first power amplifier, wherein the second voltmeter stores identifiers of one or more power amplifiers in the electronic device and a preset voltage difference, and the preset voltage difference is related to a voltage difference between two adjacent calibration points of the corresponding power amplifier; and determine that the third voltage is the difference between the first voltage and the preset voltage difference.

[0178] In a possible embodiment, the identification of the power amplifier includes at least one of the following: electronic device information, a signal path, a frequency band, and a sub-frequency band.

[0179] In a possible embodiment, the processing unit is further configured to: update relevant information of the first calibration point so that the driving voltage of the first calibration point is less than the second voltage.

[0180] In a possible embodiment, the relevant information of the calibration point includes: input power, output power and driving voltage.

[0181] It should be understood that the execution of the above corresponding processes by each unit has been described in detail in the above method embodiment, and for the sake of brevity, it will not be repeated here.

[0182] The processing unit in the above embodiments may be implemented by at least one processor or a processor-related circuit. The storage unit may be implemented by at least one memory.

[0183] Exemplarily, the present application also provides a computer-readable storage medium on which is stored a method for implementing the method executed by an electronic device in the above method embodiment.

[0184] For example, when the computer program is executed by a computer, the computer can implement the method performed by the electronic device in the above method embodiment.

[0185] Exemplarily, the present application also provides a computer program product comprising instructions, which, when executed by a computer, enables the computer to implement the method performed by the electronic device in the above method embodiment.

[0186] Illustratively, the present application also provides a chip device, including a processor, configured to call a computer program or computer instruction stored in the memory so that the processor executes the method of the above embodiment.

[0187] In a possible implementation manner, the input of the chip device corresponds to the receiving operation in the above embodiment, and the output of the chip device corresponds to the sending operation in the above embodiment.

[0188] Optionally, the processor is coupled to the memory via an interface.

[0189] Optionally, the chip device further comprises a memory, in which computer programs or computer instructions are stored.

[0190] The processor mentioned in any of the above may 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 the program of the reference signal processing method of the above embodiments. The memory mentioned in any of the above may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM), etc.

[0191] Those skilled in the art can clearly understand that, for the sake of convenience and brevity of description, the explanation and beneficial effects of the relevant contents in any of the communication devices provided above can refer to the corresponding method embodiments provided above, and will not be repeated here.

[0192] In this application, a terminal device or a network device may include a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. Among them, the hardware layer may include hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also called main memory). The operating system of the operating system layer may be any one or more computer operating systems that implement business processing through processes, such as Linux operating system, Unix operating system, Android operating system, iOS operating system, or Windows operating system. The application layer may include applications such as browsers, address books, word processing software, and instant messaging software.

[0193] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0194] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0195] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0196] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0197] If 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 computer-readable storage medium. Based on this understanding, the part that essentially contributes to the technical solution of the present application or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the process of each embodiment method of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory, random access memory, disk or optical disk and other media that can store program code.

[0198] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A power amplifier driving method, characterized in that: Applied to an electronic device, the electronic device includes a first power amplifier, the electronic device stores relevant information of a calibration point of the first power amplifier, the relevant information includes a driving voltage and an output power, and the calibration point includes a first calibration point; the method includes: When the first voltage is greater than or equal to the second voltage, a third voltage is determined according to the first voltage, the third voltage is less than the second voltage, the first voltage is a driving voltage for calibrating the first calibration point of the first power amplifier, the second voltage is a voltage when a hard failure of overvoltage occurs in the first power amplifier, and the output power corresponding to the third voltage is greater than or equal to a preset power, and the preset power is used to meet the power requirement of the electronic device; updating the driving voltage of the first calibration point to the third voltage, and updating the output power of the first calibration point to the output power corresponding to the third voltage; The first power amplifier is driven according to the third voltage.

2. The method according to claim 1, characterized in that The calibration point also includes a second calibration point, the preset power is less than the output power of the first calibration point and 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 and 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 a maximum output power among the plurality of calibration points used to calibrate the first power amplifier.

4. The method according to claim 1, characterized in that: The determining a third voltage according to the first voltage includes: The third voltage is acquired from a first voltage table according to the identifier of the first power amplifier, wherein the first voltage table 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: The determining a third voltage according to the first voltage includes: Acquire a preset voltage difference from a second voltage table according to the identifier of the first power amplifier, wherein the second voltage table stores the identifiers of one or more power amplifiers in the electronic device and the preset voltage difference, wherein 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 a difference between the first voltage and the preset voltage difference.

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

7. The method according to claim 6, characterized in that The calibration point information also includes the input power.

8. The method according to claim 7, characterized in that The method further comprises: The input power at the first calibration point is updated to be the input power corresponding to the third voltage.

9. A power amplifier driving device, characterized in that: include: A module for executing the power amplifier driving method according to any one of claims 1 to 8.

10. An electronic device, characterized in that: include: At least one processor; wherein, the at least one processor is capable of executing the power amplifier driving method according to 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, and the instructions are executed by the at least one processor so that the at least one processor can execute the power amplifier driving method as described in any one of claims 1-8.

12. A computer-readable storage medium, characterized in that: The method comprises a computer program or an instruction, and when the computer program or the instruction is executed on a computer, the computer is caused to execute the power amplifier driving method according to any one of claims 1 to 8.

13. A computer program product, characterized in that The computer program product comprises: a computer program or instructions, and when the computer program or instructions are executed on a computer, the computer is enabled to execute the power amplifier driving method according to any one of claims 1 to 8.

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