CN117240320A - Radio frequency transmitting module, protection method thereof, communication equipment and readable storage medium - Google Patents
Radio frequency transmitting module, protection method thereof, communication equipment and readable storage medium Download PDFInfo
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Abstract
The application relates to a radio frequency transmitting module, a protection method thereof, communication equipment and a readable storage medium, wherein the radio frequency transmitting module comprises a power module, a power amplifying module and a control module, wherein the power end of the power amplifying module is connected with the power module, the input end of the power amplifying module is used for being connected with a radio frequency transceiver, the output end of the power amplifying module is used for being connected with an antenna, and the power amplifying module is used for amplifying received radio frequency signals under the power supply effect of the power module; the control module is used for acquiring a power supply signal on a power supply channel between the power supply module and the power amplification module, and controlling the power supply channel to be disconnected when the voltage value of the power supply signal is in a preset voltage threshold range, so that the power supply channel can be disconnected in time under the scene that the power amplification module is burnt out with small probability, and the occurrence of serious heating condition caused by continuous abnormal heavy current of the power amplification module is avoided.
Description
Technical Field
The present application relates to the field of antenna technologies, and in particular, to a radio frequency transmitting module, a protection method thereof, a communication device, and a readable storage medium.
Background
In related rf technology, a power amplifier is used to amplify a weak small signal generated by a rf transceiver into a high-power strong signal, and radiate the signal into free space through an antenna to communicate with a base station.
However, since the power amplifier in the rf transmission path is a high-power device, the power amplifier is often operated under high-temperature, high-power and high-current operation scenes, so that the problem of low probability of burnout is easy to occur. When the power amplifier burns out, the continuous abnormal high current can cause severe heating of the communication equipment, and the surface temperature rises, so that the use of a user is influenced.
Disclosure of Invention
The embodiment of the application provides a radio frequency emission module, a protection method thereof, communication equipment and a readable storage medium, which can avoid continuous abnormal large current and improve the serious heating problem of the communication equipment in an abnormal production scene.
The first aspect of the present application provides a radio frequency transmitting module, comprising:
a power module;
the power amplification module is used for amplifying received signals under the power supply effect of the power supply module;
The control module is used for acquiring the power supply signal on the power supply channel between the power supply module and the power amplification module, and controlling the power supply channel to be disconnected when the power supply signal meets a preset turn-off condition; the preset turn-off condition includes that a voltage value of the power supply signal is in a preset voltage threshold range.
The second aspect of the present application provides a method for protecting a radio frequency transmitting module, including:
acquiring a power supply signal on a power supply path between a power supply module and a power amplification module;
when the power supply signal meets a preset turn-off condition, the power supply channel is controlled to be turned off;
the preset turn-off condition includes that a voltage value of the power supply signal is in a preset voltage threshold range.
A third aspect of the present application provides a communication device comprising:
the radio frequency transmitting module is as described above.
A fourth aspect of the present application provides a communication device comprising:
a power module;
the power amplification module is used for amplifying received radio frequency signals under the action of power supply signals of the power supply module;
The system comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the steps of the protection method of the radio frequency transmission module when executing the computer program.
A fifth aspect of the present application provides a computer readable storage medium having stored thereon a computer program, characterized in that the computer program when executed by a processor implements the steps of a method for protecting a radio frequency transmission module as described above.
The radio frequency transmitting module comprises a power module, a power amplifying module and a control module, wherein the power end of the power amplifying module is connected with the power module, the input end of the power amplifying module is used for being connected with a radio frequency transceiver, the output end of the power amplifying module is used for being connected with an antenna, and the power amplifying module is used for amplifying received radio frequency signals under the power supply effect of the power module; the control module is used for acquiring a power supply signal on a power supply channel between the power supply module and the power amplification module, and controlling the power supply channel to be disconnected when the voltage value of the power supply signal is in a preset voltage threshold range, so that the power supply channel can be disconnected in time under the scene that the power amplification module is burnt out with small probability, and the occurrence of serious heating condition caused by continuous abnormal heavy current of the power amplification module is avoided.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an RF transmitter module according to an embodiment;
FIG. 2 is a second schematic diagram of an RF transmitter module according to an embodiment;
FIG. 3 is a third schematic diagram of an RF transmission module according to an embodiment;
FIG. 4 is a schematic diagram of a RF transmitter module according to an embodiment;
FIG. 5 is a schematic diagram of a structure of an RF transmitting module according to an embodiment;
FIG. 6 is a flowchart of a method for protecting an RF transmitter module according to one embodiment;
FIG. 7 is a second flowchart of a method for protecting an RF transmitter module according to an embodiment;
FIG. 8 is a third flowchart of a method for protecting an RF transmitter module according to one embodiment;
fig. 9 is a schematic structural diagram of a communication device in an embodiment.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
It will be understood that the terms first, second, etc. as 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 element and should not be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
The radio frequency transmitting module according to the embodiment of the present application may be applied to a communication device having a wireless communication function, where the communication device may be a handheld device, a vehicle-mounted device, a wearable device, a computing device, or other processing devices connected to a wireless modem, and various types of User Equipment (UE), such as a Mobile phone, a Mobile Station (MS), and so on. For convenience of description, the above-mentioned devices are collectively referred to as communication devices.
As shown in fig. 1, in one embodiment, the radio frequency transmitting module 10 provided in the present application includes a power module 110, a power amplifying module 120 and a control module 130 (fig. 1 is only one illustration of the radio frequency transmitting module 10, wherein the connection between the power supply path between the power module 110 and the power amplifying module 120 and the control module 130 is illustrated by using a dashed line, and only the control relationship between the control module 130 and the power supply path is illustrated).
The power amplification module 120, the power end of the power amplification module 120 is connected with the power module 110, the input end of the power amplification module 120 is connected with the radio frequency transceiver 140, the output end of the power amplification module 120 is connected with the antenna ANT, and the power amplification module 120 is used for amplifying the received radio frequency signal under the power supply action of the power module 110; the control module 130 is configured to obtain a power supply signal on a power supply path between the power supply module 110 and the power amplification module 120, and when the power supply signal meets a preset turn-off condition, control the power supply path to be turned off; the preset off condition includes that the voltage value of the power supply signal is within a preset voltage threshold range.
Wherein, the power module 110 is configured to provide a power supply signal to the power amplifying module 120. The Power module 110 may include, for example, a battery and a Power Management IC (PMIC) connected to the battery to supply electric Power of the battery to the Power amplifying module 120.
The power amplifying module 120 is connected to the power module 110, the radio frequency transceiver 140, and the antenna ANT, and is configured to amplify power of the received radio frequency signal under the power supply of the power module 110. The Power amplifying module 120 may be understood as a single Power Amplifier (PA), or may be understood as a module integrated with a Power amplifier and other devices, where, when the Power amplifying module 120 is integrated with a module of a Power amplifier and other devices, a Power supply path between the Power module 110 and the Power amplifying module 120 is still understood as a Power supply path between the Power module 110 and a Power supply terminal of the Power amplifier. The power amplifier amplifies the power of the rf signal output from the rf transceiver 140 under the power supply of the power module 110, and outputs the amplified rf signal to the antenna ANT for being transmitted to the outside through the antenna ANT. The antenna ANT may support reception and transmission of radio frequency signals in different frequency bands, for example, the radio frequency signals after power amplification by the power amplification module 120 may be radiated into free space. The antenna ANT may be a directional antenna ANT or a non-directional antenna ANT. Illustratively, the antenna ANT may be formed using any suitable type of antenna ANT, and in embodiments of the present application, the type of antenna ANT is not limited.
The control module 130 is configured to obtain a power supply signal on a power supply path between the power supply module 110 and the power amplification module 120, and when the power supply signal meets a preset off condition, control the power supply path to be disconnected, so that the connection between the power supply module 110 and the power amplification module 120 is disconnected to stop continuing to supply power to the power amplification module 120. The preset turn-off condition refers to a preset determination condition related to a power supply signal and capable of indicating that the power amplification module 120 is currently in a burning state, and when the power supply signal meets the corresponding determination condition, it is indicated that the power amplification module 120 is currently in the corresponding burning state. Because the power amplifier module 120 is a high-power device, the power amplifier is often in a high-temperature, high-power and high-current working scene, and a small-probability burning event may occur. When the power amplifier is burnt, short circuit occurs in the power amplifier, so that a power supply signal is abnormal, an abnormal large current is generated on a power supply path, and a serious heating condition occurs; therefore, when the control module 130 determines that the power supply signal meets the preset turn-off condition, the current state of the power amplification module 120 is determined, and at this time, the control module 130 controls the power supply path to be turned off, so that the occurrence of serious heating caused by the fact that the power amplification module 120 continues to have large current and abnormal large current can be avoided.
It will be appreciated that the default state of the power path is an on state so that the power module 110 can supply power to the power amplification module 120.
The preset off condition may include that the voltage value of the power supply signal is within a preset voltage threshold range, for example, the voltage value of the power supply signal may be 0V or close to 0. When the power amplifying module 120 works normally, the power supply signal on the power supply path is usually a high level signal, for example, 4.5V-5.0V, and when the power amplifying module 120 works abnormally, for example, burns out, a short circuit occurs inside the power amplifying module 120, which is equivalent to that the power supply module 110 is directly shorted to the ground, and at this time, the power supply signal is changed from 4.5V-5.0V to 0V or close to 0V. Therefore, when the control module 130 determines that the voltage value of the power supply signal is 0V or close to 0, it may be determined that the power amplification module 120 is currently in the burning state, so as to timely control the power supply path to be disconnected, and avoid the power amplification module 120 from continuously providing an abnormally high current. It should be noted that, the voltage value of the power supply signal being in the preset voltage threshold range may also be understood to include that the power supply signal is in a level state corresponding to the preset voltage threshold range, or that the level state of the power supply signal is switched from another level state to a level state corresponding to the preset voltage threshold range. For example, when the power amplifying module 120 burns out, the power supply signal suddenly changes from a high level of 4.5V to 5.0V to a low level of 0V, and at this time, when the control module 130 determines that the level state of the power supply signal is switched from the high level to the low level, it may determine that the power amplifying module 120 is currently in the burn-out state, so as to timely control the power supply path to be disconnected, and avoid that the power amplifying module 120 continues to have an abnormally high current.
Optionally, the control module 130 is provided with a detection end located on the power supply path, and the power supply signal on the power supply path is acquired through the detection end. Optionally, a switching device is disposed on the power supply path, and when the control module 130 detects that the power supply signal meets a preset off condition, the on state of the power supply path is controlled by controlling the on state of the corresponding switching device.
Alternatively, the control module 130 may be a controller capable of acquiring a power supply signal or the radio frequency transceiver 140, where the controller is capable of acquiring a power supply signal on a power supply path, generating a switch off signal according to when the power supply signal meets a preset off condition, and turning on the power supply path when the switching device receives the switch off signal. In other embodiments, the control module 130 may be any other device capable of outputting a corresponding control signal according to an input signal, for example, taking a power supply signal as a voltage signal as an example, and the control module 130 may be a voltage follower, where the voltage follower outputs a corresponding voltage according to the voltage signal on the power supply path, so as to control the on state of the switch module.
The radio frequency transmitting module 10 provided by the embodiment includes a power module 110, a power amplifying module 120 and a control module 130, wherein a power end of the power amplifying module 120 is connected with the power module 110, an input end of the power amplifying module 120 is connected with a radio frequency transceiver 140, an output end of the power amplifying module 120 is connected with an antenna ANT, and the power amplifying module 120 is used for amplifying power of a received signal under the power supply action of the power module 110; the control module 130 is configured to obtain a power supply signal on a power supply path between the power supply module 110 and the power amplification module 120, and when a voltage value of the power supply signal is within a preset voltage threshold range, control the power supply path to be disconnected, so that the power supply path is disconnected in time in a situation that the power amplification module 120 burns out with a small probability, so as to avoid serious heating caused by continuous abnormal heavy current of the power amplification module 120.
In one embodiment, as shown in fig. 2, the rf transmission module 10 further includes a switch module 150.
A first end of the switch module 150 is connected with the power module 110, a second end of the switch module 150 is connected with a power end of the power amplifying module 120, and a controlled end of the switch module 150 is connected with the control module 130; the control module 130 is configured to control the switch module 150 to be turned off to disconnect the power supply path when the power supply signal meets a preset off condition.
The first end and the second end of the switch module 150 are arranged on the power supply path, the controlled end of the switch module 150 is connected with the control module 130, and when the control module 130 controls the switch module 150 to be turned off, the power supply path is disconnected; when the control module 130 controls the switch module 150 to be turned on, the power supply path is turned on. Therefore, through the control module 130 and the switch module 150, when the power supply signal meets the preset turn-off condition, the power supply channel can be disconnected in time, so that the occurrence of serious heating caused by the fact that the power amplification module 120 continuously generates abnormally large current is avoided. The preset off condition is referred to the related description of the above embodiment, and will not be described herein.
Optionally, the switching module 150 includes at least one switching device, which may be, for example, a normally closed switch or a switching tube, and may include other devices having a switching function, which is not further limited herein. Taking a switching device as a normally closed switch as an example, a normally closed movable contact of the normally closed switch is connected with the power module 110, a normally closed stationary contact of the normally closed switch is connected with the power amplification module 120, a controlled contact of the normally closed switch is connected with the control module 130, when the normally closed switch is in a default state, and when a power supply signal meets a preset turn-off condition, the control module 130 outputs a signal or applies pressure to the controlled contact of the normally closed switch so as to control the normally closed switch to be turned into an open circuit and disconnect a power supply path.
Optionally, the number of the power amplifying modules 120 and the number of the switch modules 150 are respectively plural, a first end of each switch module 150 is connected with the power module 110, and a controlled end of each switch module 150 is connected with the control module 130; the input end of each power amplification module 120 is connected with the radio frequency transceiver 140, the output end of each power amplification module 120 is connected with an antenna ANT, and the power supply ends of a plurality of power amplification modules 120 are respectively connected with the second ends of a plurality of switch modules 150 in a one-to-one correspondence manner; the control module 130 is configured to control the corresponding switch module 150 to be turned off when a power supply signal on a power supply path between each power amplifying module 120 and the power module 110 meets a preset turn-off condition.
When the number of the power amplifying modules 120 is plural, the rf transmitting module 10 may be understood as a Multi-band Multi-mode power amplifier (MMPA) integrating a plurality of power amplifiers. The power amplification modules 120 may form multiple transmission paths, so that the rf transmission module 10 supports multiple transmission processes, and improves communication quality and user experience. By providing the corresponding switch module 150 for the power supply path of each power amplification module 120, the control module 130 can control the switch module 150 on the corresponding power supply path to be turned off when the power supply path of the corresponding power amplification module 120 is abnormal, so as to disconnect the abnormal power supply path.
Optionally, when the number of the power amplification modules 120 is plural, the radio frequency transmission module 10 may further provide a gating module between the plural power amplification modules 120 and the plural antennas ANT to selectively conduct the connection between each power amplification module 120 and the corresponding antenna ANT.
It should be noted that, in other embodiments, when the number of the power amplification modules 120 is multiple, different power amplification modules 120 may also be powered by different power modules 110, for example, different power amplification modules 120 may be capable of amplifying power signals in different frequency bands or different standards, so that power requirements required by different power amplification modules 120 are different, and by setting different power modules 110 to power different power amplification modules 120, a power amplification effect may be improved, and further communication quality may be improved.
In one embodiment, the control module 130 is further configured to control, at a preset interval, the power supply path to switch from the off state to the on state and detect the power supply signal after the power supply path is turned off; and the power supply circuit is also used for controlling the power supply passage to be turned off and stopping detection when the power supply signals meet the preset turn-off condition in the continuous preset times.
In order to prevent the problem that the power amplification module 120 cannot normally operate due to the false triggering of the minimum probability of the control module 130, that is, when the power amplification module 120 is in a normal operating state and the power supply channel is not shorted, due to the problem of the control module 130, the power supply signal is detected to be abnormal by the minimum probability of the false triggering and the power supply channel is controlled to be disconnected, so that the power amplification module 120 cannot normally operate and the communication equipment cannot normally communicate, the control module 130 is further used for controlling the power supply channel to be switched from the disconnection state to the conduction state and detecting the power supply signal again at intervals of preset time after the power supply channel is disconnected, so as to determine whether the power supply signal is abnormal or not again; and the power supply circuit is also used for controlling the power supply passage to be turned off and stopping detection when the power supply signals meet the preset turn-off condition in the continuous preset times. Since the power supply signals all satisfy the preset turn-off condition in the continuous preset times, which indicates that the control module 130 has not been triggered by mistake before, it can be determined that the power amplification module 120 is burned, and is not detected later.
The preset time can be adjusted and set according to actual needs, for example, the preset time can be 3s, and after the power supply channel is disconnected for 3s, the power supply channel is controlled to be conducted again so as to detect the power supply signal again to obtain a detection result. The number of continuous presets is not particularly limited, and may be 1 or more.
Optionally, the control module 130 is further configured to control the power supply path to be turned on and stop detection when the power supply signal at least once meets a preset conduction condition in a continuous preset number of times; wherein the preset on condition and the preset off condition are different. For example, if the preset off condition is that the voltage value of the power supply signal is 0V, the preset on condition may be that the voltage value of the power supply signal is 4.5V-5V. When the control module 130 determines that the power supply signal at least once meets the preset conduction condition in the continuous preset times, it indicates that the power amplification module 120 is not burned, determines that the last protection is false triggering, keeps the power supply path conducting, and resumes normal operation of the power amplification module 120.
Taking the low level with the preset number of times being 3 and the preset turn-off condition being 0V as an example, when the control module 130 detects that the power supply signal is suddenly changed from the high level of 4.5V to 5.0V to the low level of 0V, the power supply channel is disconnected, the power supply channel is controlled to be turned on after the interval of 3s, and the power supply signal is detected again.
At this time, if the power supply signal is restored to the high level, which means that the power amplification module 120 is not burned, it is determined that the last protection is false triggering, the power supply path is kept conducting, and the power amplification module 120 resumes normal operation; continuously detecting for 3 times, if one of the power supply signals is recovered to a high level, determining that the last time is false triggering, and recovering the power amplification module 120 to work normally; if the connection is detected 3 times, the power supply signal is low, and it is determined that the power amplification module 120 is burned out, and is not detected later.
Therefore, by detecting the control module 130 continuously and preset times, the correct trigger can be accurately controlled, and the abnormal trigger is prevented from affecting the normal use of the power amplification module 120.
In one embodiment, the control module 130 is further configured to obtain temperature information of the power amplification module 120 when the power supply signal meets a preset conduction condition, and control the power amplification module 120 to adjust the output power when the temperature information meets the preset temperature condition; wherein the preset on condition and the preset off condition are different.
The preset temperature condition refers to a preset determination condition related to temperature information and capable of indicating that the power amplification module 120 is currently in a critical burning state, and when the temperature information meets the corresponding determination condition, it is indicated that the power amplification module 120 is currently in the critical burning state, and if not regulated, the risk of potential burning is possible. When the power amplification module 120 is currently in the critical burning state, the temperature of the power amplification module 120 continuously rises due to continuous aggravation of heat generation, and at this time, the control module 130 can determine the rising condition of the temperature according to the temperature information, so as to determine the dangerous condition currently faced by the power amplification module 120, and accordingly control the power amplification module 120 to regulate the output power, thereby improving the heat generation condition. The preset on condition and the preset off condition may be referred to the related descriptions in the above embodiments, and are not repeated here.
Optionally, the control module 130 controls the power amplification module 120 to adjust the output power, or the control module 130 outputs a voltage control signal to the power module 110, so that the power module 110 adjusts the power supply voltage to the power amplification module 120 according to the voltage control signal, and further, the power amplification module 120 adjusts the output power according to the adjusted power supply voltage; optionally, the control module 130 controls the power amplification module 120 to adjust the output power, or the control module 130 is connected to the radio frequency transceiver 140 and outputs a corresponding control instruction to the radio frequency transceiver 140 to instruct the radio frequency transceiver 140 to control the power amplification module 120 to adjust the output power; optionally, the control module 130 is a radio frequency transceiver 140, and the control module 130 controls the power amplification module 120 to adjust the output power, or the radio frequency transceiver 140 directly controls the power amplification module 120 to adjust the output power when detecting that the temperature information meets a preset temperature condition.
Therefore, the control module 130 performs the pre-judgment of burning according to the temperature information when the power supply signal meets the preset conduction condition, so that the current dangerous situation of the power amplification module 120 is improved, the heating situation is improved, and even the burning danger of the power amplification module 120 is removed.
At least one of the control module 130 and the switch module 150 in the above embodiment may be integrated with the power amplification module 120 to form an integrated circuit as shown in fig. 3-5, so as to effectively reduce the occupied area of the radio frequency transmitting module 10, improve the integration level of the device, be beneficial to miniaturization of the device, and reduce the cost.
For example, as shown in fig. 3 (fig. 3 illustrates that the switch module 150 includes a normally closed switch SW and the power amplifying module 120 includes a power amplifier PA, where S1 is a controlled end of the normally closed switch SW), the power amplifying module 120, the control module 130 and the switch module 150 in the foregoing embodiments may be integrated with the first transmitting circuit 101; the first transmitting circuit 101 is configured with a first power supply port VCC1, an input port PA IN and an output port OUT, the first power supply port VCC1 is respectively connected with the first ends of the power supply module 110 and the switch module 150, the input port PA IN is respectively connected with the input ends of the radio frequency transceiver 140 and the power amplification module 120, and the output port OUT is respectively connected with the output end of the power amplification module 120 and the antenna ANT; the detection end J1 of the control module 130 is disposed on a path between the first power port VCC1 and the power supply end of the power amplifying module 120 to obtain a power supply signal.
For example, as shown in fig. 4 (fig. 4 illustrates that the switch module 150 includes a normally closed switch SW and the power amplifying module 120 includes a power amplifier PA, for example), the power amplifying module 120 and the control module 130 in the foregoing embodiments may integrate the second transmitting circuit 102; the second transmitting circuit 102 is configured with a second power supply port VCC2, a control port CT, an input port PA IN and an output port OUT, the second power supply port VCC2 is respectively connected with the second end of the switch module 150 and the power supply end of the power amplification module 120, the control port CT is respectively connected with the controlled end S1 of the switch module 150 and the control end of the control module 130, the input port PA IN is respectively connected with the radio frequency transceiver 140 and the input end of the power amplification module 120, and the output port OUT is respectively connected with the output end of the power amplification module 120 and the antenna ANT; the detection end J1 of the control module 130 is disposed on a path between the second power port VCC2 and the power supply end of the power amplifying module 120 to obtain a power supply signal.
For example, as shown in fig. 5 (fig. 5 illustrates that the switch module 150 includes a normally closed switch SW and the power amplifying module 120 includes a power amplifier PA, for example), the control module 130 in the above embodiment may be a radio frequency transceiver 140 with a power supply signal detection function; the power amplification module 120 and the switching module 150 may integrate the third transmitting circuit 103; the third transmitting circuit 103 is configured with a third power supply port VCC3, a controlled port BCT, a detection port BJ, an input port PA IN and an output port OUT, wherein the third power supply port VCC3 is respectively connected with the first ends of the power supply module 110 and the switch module 150, the controlled port BCT is respectively connected with the control end of the radio frequency transceiver 140 and the controlled end of the switch module 150, the input port PA IN is respectively connected with the output end of the radio frequency transceiver 140 and the input end of the power amplification module 120, and the output port OUT is respectively connected with the output end of the power amplification module 120 and the antenna ANT; the detection end of the radio frequency transceiver 140 is connected to a path between the power module 110 and the third power port VCC3 through the detection port BJ to obtain a power supply signal.
The above-mentioned division of each module in the rf transmitting module 10 is only for illustration, and in other embodiments, the rf transmitting module 10 may be divided into different modules as needed to complete all or part of the functions of the above-mentioned rf module.
It should be noted that, the radio frequency transmitting module 10 may further include other auxiliary functional modules, for example, the radio frequency transmitting module 10 may further include a filtering module, and the filtering module is respectively connected to the radio frequency transceiver 140 and the power amplifying module 120, and is configured to filter the radio frequency signal output by the radio frequency transceiver 140 and output the radio frequency signal to the power amplifying module 120. The filtering module may be integrated in the first transmitting circuit 101, the second transmitting circuit 102, or the third transmitting circuit 103 in the above embodiments, or may be disposed outside the first transmitting circuit 101, the second transmitting circuit 102, or the third transmitting circuit 103.
As shown in fig. 6, in one embodiment, the method for protecting a radio frequency transmitting module according to the embodiment of the present application further includes: step 602-step 604.
Step 602, obtaining a power supply signal on a power supply path between a power supply module and a power amplification module.
Step 604, when the power supply signal meets a preset off condition, controlling the power supply path to be disconnected.
The preset turn-off condition comprises that the voltage value of the power supply signal is in a preset voltage threshold range.
The power supply module and the power amplifying module refer to the related descriptions in the above embodiments, and are not described herein again; steps 602 to 604 are executed by the control module in the above embodiment, and specific reference may be made to the related description of the above embodiment, which is not repeated herein.
According to the protection method of the radio frequency emission module, the power supply signal on the power supply channel between the power supply module and the power amplification module is obtained, and when the voltage value of the power supply signal is in the preset voltage threshold range, the power supply channel is controlled to be disconnected, so that the power supply channel is disconnected in time under the scene that the power amplification module is burnt out with small probability, and the occurrence of severe heating caused by continuous abnormal high current of the power amplification module is avoided.
In one embodiment, as shown in fig. 7, the protection method further includes: step 702-step 704.
Step 702, after the power supply path is disconnected, the power supply path is controlled to be switched from the disconnected state to the on state at intervals of preset time, and a power supply signal is detected.
Step 704, when the power supply signals all meet the preset turn-off condition in the continuous preset times, the power supply path is controlled to be turned off and detection is stopped.
In one embodiment, as shown in fig. 7, the protection method further includes: step 706.
Step 706, when the power supply signal at least once satisfies the preset conduction condition in the continuous preset times, controlling the power supply path to conduct and stopping detection.
The steps 702 to 706 are executed by the control module in the above embodiment, and specific reference may be made to the related description of the above embodiment, which is not repeated herein.
In one embodiment, as shown in fig. 8, the protection method further includes: step 802-step 804.
Step 802, acquiring temperature information of a power amplification module when a power supply signal meets a preset conduction condition; wherein the preset on condition and the preset off condition are different.
And step 804, controlling the power amplification module to adjust the output power when the temperature information meets the preset temperature condition.
The steps 802 to 804 are executed by the control module in the above embodiment, and specific reference may be made to the related description of the above embodiment, which is not repeated herein.
The embodiment of the application also provides communication equipment, which can comprise the radio frequency transmitting module in any embodiment. The communication equipment of the embodiment comprises the radio frequency transmitting module in any embodiment, and can timely disconnect a power supply channel under the scene that the power amplification module is burnt out with small probability, so as to avoid serious heating caused by continuous abnormal high current of the power amplification module.
The embodiment of the application also provides communication equipment which can comprise a power supply module, a power amplification module, a memory and a processor.
The power amplifier comprises a power amplifier module, a radio frequency transceiver, an antenna, a power amplifier module and a radio frequency transceiver, wherein the power end of the power amplifier module is connected with the power amplifier module, the input end of the power amplifier module is used for being connected with the radio frequency transceiver, the output end of the power amplifier module is used for being connected with the antenna, and the power amplifier module is used for amplifying received signals under the action of power supply signals of the power amplifier module. The description of the power supply module and the power amplifying module may be referred to the description of the power supply module and the power amplifying module in the above embodiments, which is not repeated herein.
The memory stores a computer program, and the processor implements the steps of the protection method of the above embodiment when executing the computer program.
The communication equipment of the embodiment comprises a power supply module, a power amplification module, a memory and a processor, wherein the power supply channel can be disconnected in time under the scene that the power amplification module is burnt out with small probability, so that the occurrence of severe heating caused by continuous abnormal high current of the power amplification module is avoided.
As shown in fig. 9, further, the above communication device is exemplified as the mobile phone 11, specifically, as shown in fig. 9, the mobile phone 11 may include a memory 21 (which optionally includes one or more computer readable storage media), a processor 22, a peripheral 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. It will be appreciated by those skilled in the art that the handset 11 shown in fig. 9 is not limiting and may include more or fewer components than shown, or may be combined with certain components, or a different arrangement of components. The various components shown in fig. 9 are implemented in hardware, software, or a combination of both hardware and software, including one or more signal processing and/or application specific integrated circuits.
Memory 21 optionally includes high-speed random access memory, and also optionally includes non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state memory devices. Illustratively, the software components stored in the memory 21 include an operating system 211, a communication module (or instruction set) 212, a Global Positioning System (GPS) module (or instruction set) 213, and the like.
The processor 22 and other control circuitry, such as control circuitry in the radio frequency system 24, may be used to control the operation of the handset 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, and the like.
The processor 22 may be configured to implement a control algorithm that controls the use of the antenna in the handset 11. The processor 22 may also issue control commands or the like for controlling the various switches in the radio frequency system 24.
The I/O subsystem 26 couples input/output peripheral devices on the handset 11, such as keypads and other input control devices, to the peripheral interface 23. The I/O subsystem 26 optionally includes a touch screen, keys, tone generator, accelerometer (motion sensor), ambient light sensor and other sensors, light emitting diodes, and other status indicators, data ports, etc. Illustratively, a user may control the operation of the handset 11 by supplying commands via the I/O subsystem 26, and may use the output resources of the I/O subsystem 26 to receive status information and other outputs from the handset 11. For example, a user may activate the handset or deactivate the handset by pressing button 261.
The rf system 24 may include the rf transmission module 10 of any of the previous embodiments.
The embodiment of the application also provides a computer readable storage medium. One or more non-transitory computer-readable storage media containing computer-executable instructions that, when executed by one or more processors, cause the processors to perform the steps of a method of protecting a radio frequency transmission module.
The embodiment of the application also provides a computer program product containing instructions, which when run on a computer, cause the computer to execute the method for protecting the radio frequency transmission module.
Any reference to memory, storage, database, or other medium used in the present application may include non-volatile and/or volatile memory. Suitable nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RM), which acts as external cache memory. By way of illustration and not limitation, RMs are available in a variety of forms, such as Static RMs (SRMs), dynamic RMs (DRMs), synchronous DRMs (SDRMs), double data rates SDRM (DDR SDRM), enhanced SDRMs (ESDRMs), synchronous link (synchronous) DRMs (SLDRMs), memory bus (Rmbus) direct RMs (RDRMs), direct memory bus dynamic RMs (DRDRMs), and memory bus dynamic RMs (RDRMs).
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (16)
1. A radio frequency transmission module, comprising:
a power module;
the power amplification module is used for amplifying received radio frequency signals under the power supply effect of the power supply module;
The control module is used for acquiring a power supply signal on a power supply channel between the power supply module and the power amplification module, and controlling the power supply channel to be disconnected when the power supply signal meets a preset turn-off condition; the preset turn-off condition includes that a voltage value of the power supply signal is in a preset voltage threshold range.
2. The radio frequency transmission module of claim 1, further comprising:
the first end of the switch module is connected with the power supply module, the second end of the switch module is connected with the power supply end of the power amplification module, and the controlled end of the switch module is connected with the control module;
the control module is used for controlling the switch module to be turned off when the power supply signal meets the preset turn-off condition so as to disconnect the power supply channel.
3. The radio frequency transmission module according to claim 2, wherein the number of the power amplification modules and the number of the switch modules are respectively plural, a first end of each switch module is connected with the power supply module, and a controlled end of each switch module is connected with the control module; the input end of each power amplification module is connected with the radio frequency transceiver, the output end of each power amplification module is connected with one antenna, and the power supply ends of a plurality of power amplification modules are respectively connected with the second ends of a plurality of switch modules in a one-to-one correspondence manner;
The control module is used for controlling the corresponding switch module to be turned off when the power supply signal on the power supply path between each power amplification module and the power supply module meets the preset turn-off condition.
4. A radio frequency transmission module according to any of claims 2-3, wherein the power amplification module, the control module and the switching module are integrated into a first transmission circuit;
the first transmitting circuit is configured with a first power port, an input port and an output port, the first power port is respectively connected with the first ends of the power module and the switch module, the input port is respectively connected with the input ends of the radio frequency transceiver and the power amplification module, and the output port is respectively connected with the output end of the power amplification module and the antenna;
the detection end of the control module is arranged on a passage between the first power port and the power end of the power amplification module so as to acquire the power supply signal.
5. A radio frequency transmission module according to any one of claims 2-3, wherein the power amplification module and the control module integrate a second transmission circuit;
The second transmitting circuit is configured with a second power port, a control port, an input port and an output port, the second power port is respectively connected with the second end of the switch module and the power end of the power amplification module, the control port is respectively connected with the controlled end of the switch module and the control end of the control module, the input port is respectively connected with the radio frequency transceiver and the input end of the power amplification module, and the output port is respectively connected with the output end of the power amplification module and the antenna;
the detection end of the control module is arranged on a passage between the second power port and the power end of the power amplification module so as to acquire the power supply signal.
6. A radio frequency transmission module according to any one of claims 2-3, wherein the control module is the radio frequency transceiver with the power supply signal detection function; the power amplification module and the switch module are integrated with a third transmitting circuit;
the third transmitting circuit is configured with a third power port, a controlled port, a detection port, an input port and an output port, wherein the third power port is respectively connected with the first ends of the power module and the switch module, the controlled port is respectively connected with the control end of the radio frequency transceiver and the controlled end of the switch module, the input port is respectively connected with the output end of the radio frequency transceiver and the input end of the power amplification module, and the output port is respectively connected with the output end of the power amplification module and the antenna;
The detection end of the radio frequency transceiver is connected with a passage between the power supply module and the third power supply port through the detection port so as to acquire the power supply signal.
7. The radio frequency transmission module according to claim 1, wherein the control module is further configured to control the power supply path to switch from an off state to an on state and detect the power supply signal at a preset interval after the power supply path is turned off; and the power supply circuit is also used for controlling the power supply channel to be turned off and stopping detection when the power supply signals meet the preset turn-off condition in the continuous preset times.
8. The radio frequency transmission module according to claim 7, wherein the control module is further configured to control the power supply path to be turned on and stop detection when the power supply signal satisfies a preset on condition at least once in a continuous preset number of times;
wherein the preset on condition and the preset off condition are different.
9. The radio frequency transmitting module according to claim 1, wherein the control module is further configured to obtain temperature information of the power amplifying module when the power supply signal meets a preset conduction condition, and control the power amplifying module to adjust output power when the temperature information meets a preset temperature condition;
Wherein the preset on condition and the preset off condition are different.
10. The method for protecting the radio frequency transmitting module is characterized by comprising the following steps of:
acquiring a power supply signal on a power supply path between a power supply module and a power amplification module;
when the power supply signal meets a preset turn-off condition, the power supply channel is controlled to be turned off;
the preset turn-off condition includes that a voltage value of the power supply signal is in a preset voltage threshold range.
11. The protection method according to claim 10, further comprising:
when the power supply signal meets a preset conduction condition, acquiring temperature information of the power amplification module;
when the temperature information meets the preset temperature condition, controlling the power amplification module to adjust output power;
wherein the preset on condition and the preset off condition are different.
12. The protection method according to claim 10, further comprising:
after the power supply passage is disconnected, controlling the power supply passage to be switched from a disconnected state to a conductive state at intervals of preset time, and detecting the power supply signal;
and when the power supply signals meet the preset turn-off condition in the continuous preset times, controlling the power supply channel to turn off and stopping detection.
13. The protection method according to claim 12, further comprising:
and when the power supply signal at least once meets a preset conduction condition in the continuous preset times, controlling the power supply channel to conduct and stopping detection.
14. A communication device, comprising:
the radio frequency transmission module of any of claims 1-9.
15. A communication device, comprising:
a power module;
the power amplification module is used for amplifying received radio frequency signals under the action of power supply signals of the power supply module;
a memory storing a computer program and a processor implementing the steps of the protection method according to any one of claims 10-13 when the computer program is executed by the processor.
16. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the protection method according to any one of claims 10-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210634630.9A CN117240320A (en) | 2022-06-07 | 2022-06-07 | Radio frequency transmitting module, protection method thereof, communication equipment and readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210634630.9A CN117240320A (en) | 2022-06-07 | 2022-06-07 | Radio frequency transmitting module, protection method thereof, communication equipment and readable storage medium |
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| Publication Number | Publication Date |
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| CN117240320A true CN117240320A (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210634630.9A Pending CN117240320A (en) | 2022-06-07 | 2022-06-07 | Radio frequency transmitting module, protection method thereof, communication equipment and readable storage medium |
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| Country | Link |
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| CN (1) | CN117240320A (en) |
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- 2022-06-07 CN CN202210634630.9A patent/CN117240320A/en active Pending
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