Radio frequency transmission module and its protection method, communication equipment and readable storage medium

Abstract

This application relates to a radio frequency (RF) transmitting module and its protection method, communication equipment, and readable storage medium. The RF transmitting module includes a first power module, a second power module, a power amplifier module, a first switch module, and a second switch module. The power amplifier module amplifies the power of the received RF signal under the action of a first power supply signal from the first power module. The first terminal of the second switch module is connected to the second power module, and the second terminal of the second switch module is connected to the controlled terminal of the first switch module. The controlled terminal of the second switch module is used to acquire a first power supply signal on the power supply path between the first power module and the power amplifier module. When the controlled path between the second power module and the first switch module is connected, the second switch module transmits a second power supply signal to the first switch module to control the first switch module to disconnect the power supply path, thereby disconnecting the power supply path in a scenario where the power amplifier module has a low probability of burning out.

Description

Technical Field

[0001] This application relates to the field of antenna technology, and in particular to a radio frequency transmitting module and its protection method, a communication device and a readable storage medium. Background Technology

[0002] In related radio frequency technologies, power amplifiers are used to amplify the weak signals generated by radio frequency transceivers into high-power signals, which are then radiated into free space via antennas to communicate with base stations.

[0003] However, because the power amplifier in the RF transmission path is a high-power device, it often operates under high temperature, high power, and high current conditions, making it prone to burnout even in small-scale scenarios. When the power amplifier burns out, the continuous abnormally high current can cause the communication equipment to overheat severely, resulting in a rise in surface temperature and affecting user experience. Summary of the Invention

[0004] This application provides a radio frequency transmitting module and its protection method, a communication device and a readable storage medium, which can avoid continuous abnormal high current and improve the problem of severe overheating of communication devices under abnormal production scenarios.

[0005] The first aspect of this application provides a radio frequency transmitting module, including:

[0006] The first power supply module is used to provide the first power supply signal;

[0007] The second power supply module is used to provide a second power supply signal;

[0008] A first switch module, wherein a first terminal of the first switch module is connected to the first power supply module;

[0009] A power amplifier module, wherein the power supply terminal of the power amplifier module is connected to the second terminal of the first switch module, the input terminal of the power amplifier module is used to connect to the radio frequency transceiver, and the output terminal of the power amplifier module is used to connect to the antenna. The power amplifier module is used to amplify the power of the received radio frequency signal under the action of the first power supply signal.

[0010] The second switch module has a first end connected to the second power module and a second end connected to the controlled end of the first switch module. The controlled end of the second switch module is used to acquire the first power supply signal on the power supply path between the first power module and the power amplifier module.

[0011] The second switch module is used to transmit the second power supply signal to the first switch module when the controlled path between the second power module and the first switch module is turned on, so as to control the first switch module to disconnect the power supply path.

[0012] A second aspect of this application provides a method for protecting a radio frequency transmitting module, comprising:

[0013] Acquire the first power supply signal on the power supply path between the first power supply module and the power amplifier module, and acquire the second power supply signal of the second power supply module;

[0014] The conduction state of the controlled path between the second power module and the first switch module is controlled according to the first power supply signal and the second power supply signal.

[0015] When the controlled path is open, the second power supply signal is transmitted to the first switch module to control the first switch module to disconnect the power supply path.

[0016] A third aspect of this application provides a communication device, comprising:

[0017] The radio frequency transmitter module as described above.

[0018] A fourth aspect of this application provides a communication device, comprising:

[0019] The first power supply module is used to provide the first power supply signal;

[0020] The second power supply module is used to provide a second power supply signal;

[0021] A first switch module, wherein a first terminal of the first switch module is connected to the first power supply module;

[0022] A power amplifier module, wherein the power supply terminal of the power amplifier module is connected to the second terminal of the first switch module, the input terminal of the power amplifier module is used to connect to an RF transceiver, and the output terminal of the power amplifier module is used to connect to an antenna. The power amplifier module is used to amplify the power of the received RF signal under the action of the first power supply signal.

[0023] A memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the protection method as described above.

[0024] The fifth aspect of this application provides a computer-readable storage medium having a computer program stored thereon, characterized in that the computer program, when executed by a processor, implements the steps of the protection method described above.

[0025] The aforementioned radio frequency (RF) transmitting module, its protection method, communication equipment, and readable storage medium, wherein the RF transmitting module includes a first power supply module, a second power supply module, a power amplifier module, a first switch module, and a second switch module. The first power supply module provides a first power supply signal; the second power supply module provides a second power supply signal; the power supply terminal of the power amplifier module is connected to the second terminal of the first switch module; the input terminal of the power amplifier module is connected to an RF transceiver; the output terminal of the power amplifier module is connected to an antenna; and the power amplifier module amplifies the received RF signal under the action of the first power supply signal. The second switch module... The first end of the second switch module is connected to the second power supply module, and the second end of the second switch module is connected to the controlled end of the first switch module. The controlled end of the second switch module is used to obtain the first power supply signal on the power supply path between the first power supply module and the power amplifier module. When the second switch module is used to conduct the controlled path between the second power supply module and the first switch module, it transmits the second power supply signal to the first switch module to control the first switch module to disconnect the power supply path. In this way, in the scenario where the power amplifier module has a low probability of burning out, the power supply path is disconnected in time to avoid the power amplifier module from continuously experiencing abnormally high current and causing severe overheating. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is one of the structural schematic diagrams of the radio frequency transmitting module in one embodiment;

[0028] Figure 2 This is a second schematic diagram of the structure of the radio frequency transmitting module in one embodiment;

[0029] Figure 3 This is the third schematic diagram of the structure of the radio frequency transmitting module in one embodiment;

[0030] Figure 4 This is the fourth schematic diagram of the structure of the radio frequency transmitting module in one embodiment;

[0031] Figure 5 This is the fifth schematic diagram of the structure of the radio frequency transmitting module in one embodiment;

[0032] Figure 6 This is the sixth schematic diagram of the structure of the radio frequency transmitting module in one embodiment;

[0033] Figure 7This is the seventh schematic diagram of the structure of the radio frequency transmitting module in one embodiment;

[0034] Figure 8 This is the eighth schematic diagram of the structure of the radio frequency transmitting module in one embodiment;

[0035] Figure 9 This is one of the flowcharts for a protection method of a radio frequency transmitting module in one embodiment;

[0036] Figure 10 This is a second flowchart of a protection method for a radio frequency transmitting module in one embodiment;

[0037] Figure 11 This is a schematic diagram of the structure of a communication device in one embodiment. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0039] It is understood that the terms "first," "second," etc., used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] It should be noted that when a component is said to be "set on" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0041] The radio frequency transmitting module involved in this application embodiment can be applied to communication devices with wireless communication functions. These communication devices can be handheld devices, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, as well as various forms of user equipment (UE), such as mobile phones, mobile stations (MS), etc. For ease of description, the devices mentioned above are collectively referred to as communication devices.

[0042] like Figure 1As shown, in one embodiment, the radio frequency transmitting module 10 provided in this application includes a first power module 110, a second power module 120, a power amplifier module 130, a first switch module 140 and a second switch module 150.

[0043] A first power supply module 110 is used to provide a first power supply signal; a second power supply module 120 is used to provide a second power supply signal; a first switch module 140 is connected to the first power supply module 110 at its first terminal; a power amplifier module 130 is connected to the second terminal of the first switch module 140 at its power supply terminal, its input terminal is used to connect to an RF transceiver, its output terminal is used to connect to an antenna, and the power amplifier module 130 is used to amplify the power of the received RF signal under the action of the first power supply signal. The second switch module 150 has a first end connected to the second power module 120 and a second end connected to the controlled end of the first switch module 140. The controlled end of the second switch module 150 is used to acquire a first power supply signal on the power supply path between the first power module 110 and the power amplifier module 130. When the second switch module 150 is used to open the controlled path between the second power module 120 and the first switch module 140, it transmits a second power supply signal to the first switch module 140 to control the first switch module 140 to disconnect the power supply path.

[0044] The first power module 110 provides a first power supply signal to the power amplifier module 130. The first power module 110 may include, for example, a battery and a power management IC (PMIC) connected to the battery to supply power from the battery to the power amplifier module 130. The second power module 120 provides a second power supply signal to the second switching module 150. The second power module 120 may also include, for example, a battery and a power management IC (PMIC) connected to the battery to supply power from the battery to the second switching module 150. It should be noted that in practical applications, the first power module 110 and the second power module 120 may be the same power module or two different power modules.

[0045] In this embodiment, the power amplifier module 130 is connected to the first power module 110 via the first switch module 140. The input terminal of the power amplifier module 130 is connected to the radio frequency transceiver, and the output terminal is connected to the antenna. Under the first power supply signal from the first power module 110, the power amplifier module 130 amplifies the signal output from the radio frequency transceiver and outputs it to the antenna for transmission. The antenna can support the reception and transmission of radio frequency signals in different frequency bands. Any suitable type of antenna can be used; in this embodiment, the type of antenna is not limited. The power amplifier module 130 includes a power amplifier (PA), or may include a power amplifier and other functional devices. It should be noted that when the power amplifier module 130 includes a power amplifier and other devices, the power supply path between the first power module 110 and the power amplifier module 130 is still understood as the power supply path between the first power module 110 and the power amplifier.

[0046] In this configuration, the first terminal of the first switch module 140 is connected to the first power supply module 110, the second terminal of the first switch module 140 is connected to the power amplifier module 130, and the controlled terminal of the first switch module 140 is connected to the second terminal of the second switch module 150. Optionally, the default state of the first switch module 140 is the on state. When the first switch module 140 is in the default state, the power supply path is on, so that the first power supply module 110 provides a first power supply signal to the power amplifier module 130. Optionally, the first switch module 140 includes at least one switching device, which may be, for example, a normally closed switch or a switching transistor, and may also include other devices with switching functions, without further limitation. Taking a normally closed switch as an example, the normally closed moving contact of the normally closed switch is connected to the first power supply module 110, the normally closed stationary contact of the normally closed switch is connected to the power amplifier module 130, and the controlled contact of the normally closed switch is connected to the second terminal of the second switch module 150. In the default state, the normally closed switch is in the closed state.

[0047] In this configuration, the first terminal of the second switch module 150 is connected to the second power module 120 to obtain a second power supply signal, the controlled terminal of the second switch module 150 is connected to the power supply path to obtain a first power supply signal on the power supply path, and the second terminal of the second switch module 150 is connected to the controlled terminal of the first switch module 140. The connection between the controlled terminal of the second switch module 150 and the power supply path can be such that the controlled terminal of the second switch module 150 is connected to the first power module 110 and the first terminal of the first switch module 140 respectively (e.g.,...). Figure 1 (As shown), or the controlled terminal of the second switch module 150 can be connected to the second terminal of the first switch module 140 and the power supply terminal of the power amplifier module 130 respectively (e.g. Figure 2(As shown). When the second switch module 150 connects the controlled path between the second power module 120 and the first switch module 140, it transmits the second power supply signal to the first switch module 140 to control the first switch module 140 to disconnect the power supply path, thereby causing the first power module 110 to stop supplying power to the power amplifier module 130.

[0048] Optionally, the second switch module 150 is used to connect the controlled path between the second power module 120 and the first switch module 140 when the first power supply signal and the second power supply signal meet the first preset condition. This allows the controlled path to transmit the second power supply signal to the first switch module 140, so that the first switch module 140 receives the second power supply signal when the first preset condition is met and disconnects the power supply path under the action of the second power supply signal. The first preset condition refers to a pre-set judgment condition related to the first and second power supply signals that indicates the power amplifier module 130 is currently in a burnt-out state. When the first and second power supply signals meet the first preset condition, it indicates that the power amplifier module 130 is currently in a burnt-out state. Since the power amplifier in the power amplifier module 130 is a high-power device, it often operates under high temperature, high power, and high current conditions, and a small probability of burnt-out may occur. When the power amplifier burns out, an internal short circuit will occur, leading to abnormal power supply signals, abnormally high current in the power supply path, and severe overheating. When the second switch module 150 determines that the first power supply signal and the second power supply signal meet the first preset condition, it conducts the controlled path between the second power supply module 120 and the first switch module 140, so that the first switch module 140 disconnects the power supply path according to the second power supply signal, which can avoid the power amplifier module 130 from continuously and abnormally high current, which could lead to severe overheating.

[0049] Optionally, the first preset condition may include a first power supply signal being a low-level signal and a second power supply signal being a high-level signal. A low-level first power supply signal can be understood as the voltage value of the first power supply signal being within a lower preset voltage threshold range; for example, it may include a power supply signal voltage value of 0V or close to 0. When the power amplifier module 130 is operating normally, the first power supply signal on the power supply path is typically a high-level signal, for example, 4.5V-5.0V. However, when the power amplifier module 130 malfunctions, such as when it burns out, a short circuit occurs inside the power amplifier module 130, equivalent to the power supply module 110 being directly short-circuited to ground. At this time, the power supply signal will change from 4.5V-5.0V to 0V or close to 0. A high-level second power supply signal can be understood as the voltage value of the second power supply signal being higher than the voltage value of the first power supply signal. Typically, when the second power supply module 120 supplies power to the second switching module 150, the second power supply signal is a high-level signal; when the second power supply module 120 stops supplying power to the second switching module 150, the second power supply signal is a low-level signal. It should be noted that the first preset condition can be adjusted and set according to the conduction conditions of the internal components of the second switch module 150, and does not need to be limited to the first power supply signal being a low-level signal and the second power supply signal being a high-level signal.

[0050] Optionally, the second power module 120 can be configured to supply power to the second switch module 150 during a preset time period, so that the second switch module 150 can receive a second power supply signal that meets the first preset condition during the preset time period. Thus, if a first power supply signal that meets the first preset condition is received at the same time during the preset time period, the first switch module 140 can be quickly controlled to turn off.

[0051] The radio frequency transmitting module 10 provided in this embodiment includes a first power supply module 110, a second power supply module 120, a power amplifier module 130, a first switch module 140, and a second switch module 150. The first power supply module 110 provides a first power supply signal; the second power supply module 120 provides a second power supply signal; the power supply terminal of the power amplifier module 130 is connected to the second terminal of the first switch module 140, the input terminal of the power amplifier module 130 is connected to an RF transceiver, and the output terminal of the power amplifier module 130 is connected to an antenna. The power amplifier module 130 amplifies the power of the received RF signal under the action of the first power supply signal; the second switch module 150 has a first power supply module 110, a second power supply module 120, a power amplifier module 130, a first switch module 140, and a second switch module 150. The second terminal of the second switch module 150 is connected to the second power module 120, and the second terminal of the second switch module 150 is connected to the controlled terminal of the first switch module 140. The controlled terminal of the second switch module 150 is used to obtain the first power supply signal on the power supply path between the first power module 110 and the power amplifier module 130. When the second switch module 150 conducts the controlled path between the second power module 120 and the first switch module 140, the controlled path transmits the second power supply signal to the first switch module 140 to control the first switch module 140 to disconnect the power supply path. In this way, in the scenario where the power amplifier module 130 has a low probability of burning out, the power supply path is disconnected in time to avoid the power amplifier module 130 from continuously experiencing abnormally high current and causing severe overheating.

[0052] In one embodiment, when the second switch module 140 is used to turn on the controlled path when the first power supply signal and the second power supply signal meet the first preset condition, the second switch module 150 is also used to turn off the controlled path after the power supply path is turned off, so that the first switch module 140 turns on the power supply path when the first power supply signal and the second power supply signal meet the second preset condition; the second preset condition is different from the first preset condition.

[0053] The second switch module 150 is also used to determine the signal status of the first power supply signal and the second power supply signal again after the power supply path is disconnected, and disconnect the controlled path to enable the first switch module 140 to conduct the power supply path when the first power supply signal and the second power supply signal meet the second preset conditions, so that the first power supply module 110 supplies power to the power amplifier module 130 again and the power amplifier module 130 resumes normal operation.

[0054] This prevents the power supply path from being disconnected due to a very low probability of accidental triggering, which would cause the power amplifier module 130 to malfunction. For example, if the power amplifier module 130 is in normal working condition and the power supply path is not short-circuited, due to a problem with the second switch module 150 itself, there is a very low probability of accidental detection that the first power supply signal and the second power supply signal meet the first preset condition and control the power supply path to be disconnected, causing the power amplifier module 130 to malfunction and the communication device to be unable to communicate normally.

[0055] The second preset condition refers to a pre-set judgment condition related to the first power supply signal and the second power supply signal, which indicates that the power amplifier module 130 is currently in a normal working state. When the first power supply signal and the second power supply signal meet the second preset condition, it indicates that the power amplifier module 130 is currently in the corresponding normal working state. Therefore, when the second switch module 150 determines that the first power supply signal and the second power supply signal meet the second preset condition, it connects the controlled path between the second power supply module 120 and the first switch module 140, so that the first switch module 140 connects the power supply path according to the second power supply signal, allowing the power amplifier module 130 to continue to work normally.

[0056] The second preset condition differs from the first preset condition, and the second preset condition can be adjusted according to the actual settings of the first preset condition. Optionally, when the first preset condition is that the first power supply signal is a low-level signal and the second power supply signal is a high-level signal, the second preset condition can be that the first power supply signal is a high-level signal and the second power supply signal is a high-level signal, or that the first power supply signal is a low-level signal and the second power supply signal is a low-level signal.

[0057] It should be noted that when the first preset condition is that the first power supply signal is a low-level signal and the second power supply signal is a high-level signal, under the condition that the controlled path is on, the second switch module 150 outputs the high-level second power supply signal to the first switch module 140. Under the condition that the controlled path is off, the second terminal of the second switch module 150 changes from a high-level state to a low-level state, and the first switch module 140 is equivalent to receiving a low-level signal. The first switch module 140 is configured to turn on the power supply path in the default state, turn off the power supply path when receiving a high-level signal, and turn on the power supply path when receiving a low-level signal after turning off.

[0058] In one embodiment, the first preset condition includes a first power supply signal being a low-level signal and a second power supply signal being a high-level signal; such as Figure 3 As shown ( Figure 3 by Figure 1 Based on the example, the second switch module 150 includes a data acquisition unit 151 and a switch unit 152.

[0059] Acquisition unit 151, the first end of acquisition unit 151 is the controlled end of second switch control module 150, acquisition unit 151 is used to acquire the first power supply signal on the power supply path; switch unit 152, the controlled end of switch unit 152 is connected to the second end of acquisition unit 151, the first end of switch unit 152 is the first end of second switch module 150, the second end of switch unit 152 is the second end of second switch module 150, switch unit 152 is used to turn on the controlled path when the first power supply signal is a low level signal and the second power supply signal is a high level signal.

[0060] The acquisition unit 151 acquires a first power supply signal and outputs it to the switching unit 152. The switching unit 152 acquires the first power supply signal and a second power supply signal, and activates the controlled path when the first power supply signal is low and the second power supply signal is high, so that the first switching module 140 shuts off the power supply path. Optionally, the switching unit 152 activates the power supply path in the default state, and also activates the power supply path when the first power supply signal is high and the second power supply signal is high, or when the first power supply signal is low and the second power supply signal is low, after the power supply path is disconnected. Thus, the acquisition unit 151 and the switching unit 152 can control the activation and deactivation of the first switching module 140 in a timely manner.

[0061] The acquisition unit 151 may include a resistor or other device capable of acquiring voltage signals, and the switching unit 152 may include at least one switching device, such as a switching transistor. Optionally, the acquisition unit 151 is a resistor R, and the switching unit 152 is a PMOS switching transistor (e.g., PMOS). Figure 3 As shown, Figure 3 Taking the first switching module 140, which includes a normally closed switch SW, and the power amplification module 130, which includes a power amplifier PA, as an example, S1 is the controlled terminal of the normally closed switch SW. It should be noted that when the switching unit 152 is an NMOS transistor or other switching transistor, the first preset condition and the second preset condition can be adjusted according to the conduction and turn-off conditions of each switching transistor.

[0062] Optionally, such as Figure 4 As shown, the power amplification module 130 in the above embodiment may include multiple power amplifiers PA ( Figure 4 Taking two examples, Figure 4In this circuit, 160 is an RF transceiver, ANT1 and ANT2 are antennas, and PA1 and PA2 are different power amplifiers. Multiple first switch modules 140 and multiple second switch modules 150 are used. The controlled terminals of the multiple first switch modules 140 are connected one-to-one to the second terminals of the multiple second switch modules 150. The first terminal of each second switch module 150 is connected to the second power supply module 120. Each power amplifier PA is connected to the first power supply module 110 through a corresponding first switch module 140, and each power amplifier PA is connected to an antenna. Therefore, the on / off state of the power supply path for each power amplifier PA is determined by the corresponding first switch module 140 and second switch module 150. By setting a corresponding first switch module 140 for each power amplifier PA's power supply path, and setting a corresponding second switch module 150 connected to the controlled terminal of each first switch module 140, the second switch module 150 can control the first switch module 140 on the corresponding power supply path to turn off when an abnormality occurs in the power supply path of the corresponding power amplifier PA, thus disconnecting the abnormal power supply path.

[0063] It should be noted that when there are multiple power amplifiers (PAs), different power amplifiers (PAs) can be powered by the same or different first power supply modules 110, and different second switch modules 150 can also be powered by the same or different second power supply modules 120. The specific settings can be adjusted according to actual needs. When the power amplifier module 130 includes multiple power amplifiers (PAs), the power amplifier module 130 can be understood as a multi-band multi-mode power amplifier (MMPA) integrating multiple power amplifiers. Multiple power amplifiers (PAs) can form multiple transmission paths, thereby enabling the power amplifier module 130 to support multi-channel transmission processing, improving communication quality and user experience.

[0064] Optionally, at least one of the first switching module 140 and the second switching module 150 in the above embodiments can be integrated with the power amplifier module 130 to form, for example... Figures 5-7 The integrated circuit shown effectively reduces the area occupied by the radio frequency transmitter module 10, improves the integration of the device, facilitates the miniaturization of the device, and reduces costs.

[0065] For example, such as Figure 5 As shown ( Figure 5Taking the first switch module 140 including a normally closed switch SW, the second switch module 150 including a resistor R and a switching transistor PMOS, and the power amplifier module 130 including a power amplifier PA as an example, where S1 is the controlled terminal of the normally closed switch SW, the power amplifier module 130, the first switch module 140 and the second switch module 150 in the above embodiment constitute a first transmitting circuit 101. The first transmitting circuit 101 is configured with a first power supply port VCC1, a second power supply port VCC2, an input port PA IN and an output port OUT; wherein, the first power supply port VCC1 is connected to the first terminal of the first power supply module 110, the first terminal of the first switch module 140 and the controlled terminal of the second switch module 150 respectively, the second power supply port VCC2 is connected to the first terminal of the second power supply module 120 and the second terminal of the second switch module 150 respectively, the input port PA IN is connected to the input terminal of the power amplifier module 130 and the RF transceiver 160 respectively, and the output port OUT is connected to the output terminal of the power amplifier module 130 and the antenna ANT respectively.

[0066] For example, such as Figure 6 As shown ( Figure 6 Taking the example of a first switch module 140 including a normally closed switch SW, a second switch module 150 including a resistor R and a switching transistor PMOS, and a power amplifier module 130 including a power amplifier PA, where S1 is the controlled terminal of the normally closed switch SW, the power amplifier module 130 and the second switch module 150 in the above embodiment constitute a second transmitting circuit 102. The second transmitting circuit 102 is configured with a third power supply port VCC3, a fourth power supply port VCC4, a control port CT, an input port PA IN, and an output port OUT. The third power supply port VCC3 is connected to the second terminal of the first switch module 140, the power supply terminal of the power amplifier module 130, and the controlled terminal of the second switch module 150. The fourth power supply port VCC4 is connected to the first terminal of the second power supply module 120 and the second switch module 150. The control port CT is connected to the controlled terminal of the first switch module 140 and the second terminal of the second switch module 150. The input port PA IN... IN is connected to the input terminal of the power amplifier module 130 and the radio frequency transceiver 160, respectively, and the output port OUT is connected to the output terminal of the power amplifier module 130 and the antenna ANT, respectively.

[0067] For example, such as Figure 7 As shown ( Figure 7Taking the first switch module 140, which includes a normally closed switch SW, the second switch module 150, which includes a resistor R and a switching transistor PMOS, and the power amplifier module 130, which includes a power amplifier PA, as an example, where S1 is the controlled terminal of the normally closed switch SW, the power amplifier module 130 and the first switch module 140 in the above embodiment constitute a third transmitting circuit 103. The third transmitting circuit 103 is configured with a fifth power supply port VCC5, a controlled port BCT, an input port PA IN, and an output port OUT. The fifth power supply port VCC5 is connected to the first power supply module 110, the first terminal of the first switch module 140, and the controlled terminal of the second switch module 150, respectively. The controlled port BCT is connected to the second terminal of the second switch module 150 and the controlled terminal of the first switch module 140, respectively. The input port PA IN is connected to the input terminal of the power amplifier module 130 and the RF transceiver 160, respectively. The output port OUT is connected to the output terminal of the power amplifier module 130 and the antenna ANT, respectively.

[0068] In one embodiment, such as Figure 8 As shown, the radio frequency transmitting module 10 may also include a temperature detection module 170 and a processing module 180.

[0069] The temperature detection module 170 is used to detect the temperature information of the power amplifier module 130; the processing module 180 is connected to the controlled terminal of the first switch module 140 and the power amplifier module 130 respectively, and is used to acquire the temperature information of the temperature detection module 170 when the first switch module 140 is detected to remain in the conducting state for a preset time, and control the power amplifier module 130 to adjust the amplification power when the temperature information meets the preset temperature conditions.

[0070] The temperature detection module 170 can be configured to detect the temperature information of the power amplifier module 130 and output the temperature information to the processing module 180. Optionally, the temperature detection module 170 can be a temperature sensor, which can be positioned close to the power amplifier module 130 to acquire the temperature information of the power amplifier module 130. When the processing module 180 detects that the first switch module 140 remains in the on state for a preset time, it acquires the temperature information of the temperature detection module 170. When the temperature information meets the preset temperature condition, it controls the power amplifier module 130 to adjust the amplification power, thereby reducing the power consumption and temperature of the power amplifier module 130, and preventing the power amplifier module from continuously heating up and eventually burning out.

[0071] The preset temperature condition refers to a pre-set judgment condition related to temperature information that indicates the power amplifier module 130 is currently in a critical burnout state. When the temperature information meets the corresponding judgment condition, it indicates that the power amplifier module 130 is currently in a critical burnout state, and there is a potential risk of burnout if no adjustment is made. When the power amplifier module 130 is currently in a critical burnout state, its temperature will continue to rise due to the continuous increase in heat generation. At this time, the processing module 180 can determine the temperature rise based on the temperature information, and thus determine the current dangerous situation faced by the power amplifier module 130, and accordingly control the power amplifier module 130 to adjust the output power to improve the heat generation situation. Optionally, the preset temperature condition can be that the temperature parameter value in the temperature information is greater than or equal to a preset temperature threshold, or that the temperature parameter value in the temperature information is on a continuous upward trend within a preset time period.

[0072] Optionally, the processing module 180 can determine whether the first switch module 140 is in a conducting state by detecting the level state of the controlled terminal of the first switch module 140. The level state corresponds to the signal state of the second power supply signal in the first preset condition. Taking the second power supply signal as high level in the first preset condition as an example, when the level state of the controlled terminal of the first switch module 140 is detected to be high level, the first switch module 140 is determined to be in a closed state. When the level state of the controlled terminal of the first switch module 140 is detected to be low level, the first switch module 140 is determined to be in a conducting state.

[0073] Optionally, the processing module 180 controls the power amplifier module 130 to adjust the output power. This can be achieved by the processing module 180 outputting a voltage control signal to the first power supply module 110, thereby adjusting the supply voltage to the power amplifier module 130 according to the voltage control signal, and thus causing the power amplifier module 130 to adjust its output power according to the adjusted supply voltage. Alternatively, the processing module 180 can also be an RF transceiver or a baseband processor, which outputs corresponding control commands to the power amplifier module 130 based on temperature information, so that the power amplifier module 130 adjusts its output power.

[0074] Therefore, the temperature information of the power amplifier module 130 is detected by the temperature detection module 170. When the processing module 180 detects that the first switch module 140 remains in the conducting state for a preset time, it makes a prediction of burnout based on the temperature information, and improves the heating situation when the power amplifier module 130 is facing a dangerous situation, thereby improving or even eliminating the danger of burnout of the power amplifier module 130.

[0075] The division of the various modules in the radio frequency transmitting module 10 described above is only for illustrative purposes. In other embodiments, the radio frequency transmitting module 10 can be divided into different modules as needed to complete all or part of the functions of the radio frequency module described above.

[0076] It should be noted that the RF transmitting module 10 may also include other auxiliary functional modules. For example, the RF transmitting module 10 may also include a filtering module, which is connected to the RF transceiver and the power amplifier module 130 respectively, and is used to filter the RF signal output by the RF transceiver before outputting it to the power amplifier module 130. The filtering module may be integrated into the power amplifier module 130, the first transmitting circuit 101, the second transmitting circuit 102, or the third transmitting circuit 103 in the above embodiments, or it may be located externally to the power amplifier module 130, the first transmitting circuit 101, the second transmitting circuit 102, or the third transmitting circuit 103.

[0077] like Figure 9 As shown, in one embodiment, this application also provides a method for protecting a radio frequency transmitting module, including steps 902-906.

[0078] Step 902: Obtain the first power supply signal on the power supply path between the first power supply module and the power amplifier module, and obtain the second power supply signal of the second power supply module.

[0079] Step 904: Control the conduction state of the controlled path between the second power supply module and the first switch module according to the first power supply signal and the second power supply signal.

[0080] Step 906: When the controlled path is open, the second power supply signal is transmitted to the first switch module to control the first switch module to disconnect the power supply path.

[0081] The first power module, the second power module, and the power amplifier module are described in the above embodiments and will not be repeated here. Steps 902-906 can be executed by the second switch module in the above embodiments, and the details can be found in the above embodiments and will not be repeated here.

[0082] The protection method for the radio frequency transmitting module provided in this embodiment acquires a first power supply signal on the power supply path between the first power supply module and the power amplifier module, and acquires a second power supply signal from the second power supply module. Based on the first and second power supply signals, the method controls the conduction state of the controlled path between the second power supply module and the first switch module. When the controlled path is on, the second power supply signal is transmitted to the first switch module to control the first switch module to disconnect the power supply path. In this way, in scenarios where the power amplifier module has a low probability of burning out, the power supply path is disconnected in time to avoid the power amplifier module from experiencing severe overheating due to continuous abnormally high current.

[0083] In one embodiment, step 904 in the above embodiment includes: turning on the controlled path when the first power supply signal and the second power supply signal meet the first preset condition; the protection method of the radio frequency transmitting module further includes: step 908.

[0084] Step 908: After the power supply path is disconnected, if the first power supply signal and the second power supply signal meet the second preset condition, disconnect the controlled path to enable the first switch module to conduct the power supply path; the second preset condition is different from the first preset condition.

[0085] The first and second preset conditions are described in the relevant descriptions in the above embodiments and will not be repeated here. Step 908 can be executed by the second switch module in the above embodiments, and the details can be found in the relevant descriptions in the above embodiments and will not be repeated here.

[0086] In one embodiment, such as Figure 10 As shown, the protection method for the radio frequency transmitting module also includes steps 1002 and 1004.

[0087] Step 1002: When it is detected that the first switch module remains in the conducting state for a preset time, the temperature information of the power amplifier module is acquired.

[0088] Step 1004: When the temperature information meets the preset temperature conditions, control the power amplification module to adjust the amplification power.

[0089] Steps 1002-1004 can be executed by the temperature detection module and processing module in the above embodiments. For details, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.

[0090] This application also provides a communication device, which may include the radio frequency transmitting module in any of the above embodiments. The communication device of this embodiment, including the radio frequency transmitting module in any of the above embodiments, can promptly disconnect the power supply path in scenarios where the power amplifier module has a low probability of burning out, thereby avoiding severe overheating caused by continuous abnormally high current in the power amplifier module.

[0091] This application also provides a communication device, which may include a first power module, a second power module, a first switch module, a power amplifier module, a memory, and a processor.

[0092] The first power module, the second power module, the first switch module, and the power amplifier module can be referred to the relevant descriptions in the above embodiments, and will not be repeated here.

[0093] The system includes a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the steps of the protection method for the radio frequency transmission module as described in the above embodiment.

[0094] The communication device in this embodiment includes a first power module, a second power module, a first switch module, a power amplifier module, a memory, and a processor. It can disconnect the power supply path in a scenario where the power amplifier module is unlikely to burn out, so as to avoid the occurrence of severe overheating caused by continuous abnormal high current in the power amplifier module.

[0095] like Figure 11 As shown, further, taking the aforementioned communication device as mobile phone 11 as an example for explanation, specifically, as follows... Figure 11 As shown, the mobile phone 11 may include a memory 21 (which optionally includes one or more computer-readable storage media), a processor 22, a peripheral device interface 23, a radio frequency system 24, and an input / output (I / O) subsystem 26. These components optionally communicate via one or more communication buses or signal lines 29. Those skilled in the art will understand that... Figure 11 The mobile phone 11 shown does not constitute a limitation on the mobile phone and may include more or fewer components than shown, or combine certain components, or have different component arrangements. Figure 11 The various components shown are implemented in hardware, software, or a combination of both, including one or more signal processing and / or application-specific integrated circuits.

[0096] Memory 21 optionally includes high-speed random access memory, and also optionally includes non-volatile memory, such as one or more disk storage devices, flash memory devices, or other non-volatile solid-state memory devices. Exemplary examples include software components stored in memory 21 such as an operating system 211, a communication module (or instruction set) 212, a global positioning system (GPS) module (or instruction set) 213, etc.

[0097] Processor 22 and other control circuits (such as the control circuits in the radio frequency system 24) can be used to control the operation of mobile phone 11. The processor 22 may be based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application-specific integrated circuits, etc.

[0098] The processor 22 can be configured to implement control algorithms for controlling the use of the antenna in the mobile phone 11. The processor 22 can also issue control commands for controlling various switches in the radio frequency system 24.

[0099] I / O subsystem 26 couples input / output peripherals on mobile phone 11, such as a keypad and other input control devices, to peripheral interface 23. I / O subsystem 26 optionally includes a touchscreen, buttons, a tone generator, an accelerometer (motion sensor), an ambient light sensor and other sensors, LEDs and other status indicators, data ports, etc. For example, a user can control the operation of mobile phone 11 by supplying commands via I / O subsystem 26, and can use the output resources of I / O subsystem 26 to receive status information and other outputs from mobile phone 11. For example, a user can press button 261 to turn the phone on or off.

[0100] The radio frequency system 24 may include the radio frequency transmitting module 10 in any of the foregoing embodiments.

[0101] This application also provides a computer-readable storage medium. One or more non-volatile computer-readable storage media containing computer-executable instructions, which, when executed by one or more processors, cause the processors to perform the steps of a protection method for a radio frequency transmission module.

[0102] This application also provides a computer program product containing instructions that, when run on a computer, cause the computer to execute a protection method for a radio frequency transmission module.

[0103] Any references to memory, storage, databases, or other media used in this application may include non-volatile and / or volatile memory. Suitable non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RM), which is used as external cache memory. By way of illustration and not limitation, RM is available in a variety of forms, such as static RM (SRM), dynamic RM (DRM), synchronous DRM (SDRM), dual data rate SDRM (DDR SDRM), enhanced SDRM (ESDRM), synchronous link DRM (SLDRM), ROMbus direct RM (RDRM), direct memory bus dynamic RM (DRDRM), and memory bus dynamic RM (RDRM).

[0104] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0105] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A radio frequency transmitting module, characterized in that, include: The first power supply module is used to provide the first power supply signal; The second power supply module is used to provide a second power supply signal; A first switch module, wherein a first terminal of the first switch module is connected to the first power supply module; A power amplifier module, wherein the power supply terminal of the power amplifier module is connected to the second terminal of the first switch module, the input terminal of the power amplifier module is used to connect to the radio frequency transceiver, and the output terminal of the power amplifier module is used to connect to the antenna. The power amplifier module is used to amplify the power of the received radio frequency signal under the action of the first power supply signal. The second switch module has a first end connected to the second power module and a second end connected to the controlled end of the first switch module. The controlled end of the second switch module is used to acquire the first power supply signal on the power supply path between the first power module and the power amplifier module. The second switch module is used to conduct the controlled path between the second power supply module and the first switch module when the first power supply signal and the second power supply signal meet the first preset condition, indicating that the power amplifier module is in an abnormal working state, and transmit the second power supply signal to the first switch module to control the first switch module to disconnect the power supply path.

2. The radio frequency transmitting module according to claim 1, characterized in that, The second switch module is used to disconnect the controlled path after the power supply path is disconnected, and when the first power supply signal and the second power supply signal meet the second preset condition, so that the first switch module can turn on the power supply path. The second preset condition is different from the first preset condition.

3. The radio frequency transmitting module according to claim 2, characterized in that, The first preset condition includes the first power supply signal being a low-level signal and the second power supply signal being a high-level signal; the second switching module includes: The acquisition unit has a first end that is the controlled end of the second switch module, and the acquisition unit is used to acquire the first power supply signal on the power supply path. A switching unit, wherein the controlled terminal of the switching unit is connected to the second terminal of the acquisition unit, the first terminal of the switching unit is the first terminal of the second switching module, and the second terminal of the switching unit is the second terminal of the second switching module, the switching unit is used to turn on the controlled path when the first power supply signal is a low level signal and the second power supply signal is a high level signal.

4. The radio frequency transmitting module according to any one of claims 1-3, characterized in that, The power amplifier module, the first switch module and the second switch module constitute a first transmitting circuit, and the first transmitting circuit is configured with a first power port, a second power port, an input port and an output port. The first power port is connected to the first power module, the first end of the first switch module, and the controlled end of the second switch module. The second power port is connected to the second power module and the first end of the second switch module. The input port is connected to the input end of the power amplifier module and the radio frequency transceiver. The output port is connected to the output end of the power amplifier module and the antenna.

5. The radio frequency transmitting module according to any one of claims 1-3, characterized in that, The power amplifier module and the second switch module constitute a second transmitting circuit, which is configured with a third power port, a fourth power port, a control port, an input port and an output port. The third power port is connected to the second terminal of the first switch module, the power terminal of the power amplifier module, and the controlled terminal of the second switch module, respectively. The fourth power port is connected to the first terminal of the second power module and the second switch module, respectively. The control port is connected to the controlled terminal of the first switch module and the second terminal of the second switch module, respectively. The input port is connected to the input terminal of the power amplifier module and the radio frequency transceiver, respectively. The output port is connected to the output terminal of the power amplifier module and the antenna, respectively.

6. The radio frequency transmitting module according to any one of claims 1-3, characterized in that, The power amplifier module and the first switch module constitute a third transmitting circuit, which is configured with a fifth power port, a controlled port, an input port and an output port. The fifth power port is connected to the first power module, the first end of the first switch module, and the controlled end of the second switch module. The controlled port is connected to the second end of the second switch module and the controlled end of the first switch module. The input port is connected to the input end of the power amplifier module and the radio frequency transceiver. The output port is connected to the output end of the power amplifier module and the antenna.

7. The radio frequency transmitting module according to any one of claims 1-3, characterized in that, The radio frequency transmitting module also includes: A temperature detection module is used to detect the temperature information of the power amplifier module; The processing module is connected to the controlled terminal of the first switch module and the power amplifier module, respectively. When it is detected that the first switch module remains in the conducting state for a preset time, it acquires the temperature information of the temperature detection module, and when the temperature information meets the preset temperature conditions, it controls the power amplifier module to adjust the amplification power.

8. A protection method for a radio frequency transmitting module, characterized in that, include: Acquire the first power supply signal on the power supply path between the first power supply module and the power amplifier module, and acquire the second power supply signal of the second power supply module; When the first power supply signal and the second power supply signal meet the first preset condition, indicating that the power amplifier module is in an abnormal working state, the conduction state of the controlled path between the second power supply module and the first switch module is controlled. When the controlled path is open, the second power supply signal is transmitted to the first switch module to control the first switch module to disconnect the power supply path.

9. The protection method according to claim 8, characterized in that, The protection method further includes: After the power supply path is disconnected, if the first power supply signal and the second power supply signal meet the second preset condition, the controlled path is disconnected to enable the first switch module to conduct the power supply path; the second preset condition is different from the first preset condition.

10. The protection method according to claim 8, characterized in that, Also includes: When the first switch module is detected to remain in the conducting state for a preset time, the temperature information of the power amplifier module is acquired; When the temperature information meets the preset temperature conditions, the power amplification module is controlled to adjust the amplification power.

11. A communication device, characterized in that, include: The radio frequency transmitting module as described in any one of claims 1-7.

12. A communication device, characterized in that, include: The first power supply module is used to provide the first power supply signal; The second power supply module is used to provide a second power supply signal; A first switch module, wherein a first terminal of the first switch module is connected to the first power supply module; A power amplifier module, wherein the power supply terminal of the power amplifier module is connected to the second terminal of the first switch module, the input terminal of the power amplifier module is used to connect to an RF transceiver, and the output terminal of the power amplifier module is used to connect to an antenna. The power amplifier module is used to amplify the power of the received RF signal under the action of the first power supply signal. A memory and a processor, the memory storing a computer program, the processor executing the computer program to implement the steps of the protection method as described in any one of claims 8-10.

13. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the protection method as described in any one of claims 8-10.

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