Power supply module and mobile terminal

Abstract

The embodiment of the invention discloses a power supply module and a mobile terminal, and belongs to the technical field of electronics. And the power supply module is used for supplying power to the radio frequency power amplifier. The power supply module comprises a power detector which is used for carrying out power detection on a radio frequency signal before or after power amplification of the radio frequency power amplifier, converting the detected power into detection voltage and feeding back the detection voltage to a reference voltage input end of a boost power supply so as to take the detection voltage as the reference voltage of the boost power supply; and the boost power supply is used for comparing an output voltage with the reference voltage, controlling a charging and discharging process according to a comparison result so as to enable the output voltage to change along with the reference voltage, and outputting the output voltage to the radio frequency power amplifier as a power supply voltage of the radio frequency power amplifier. According to the power supply module and the mobile terminal, the working efficiency of the radio frequency power amplifier can be improved.

Description

Technical Field

[0001] The present application belongs to the field of electronic technology, and specifically relates to a power supply module and a mobile terminal. Background Art

[0002] At present, mobile terminal devices such as mobile phones can realize wireless communication functions such as satellite communication, 2G communication, 3G communication, 4G communication, 5G communication, Bluetooth communication, etc. In the related art, in mobile terminal devices such as mobile phones, for some wireless communication RF power amplifiers, a constant voltage is usually provided by a boost power supply for power supply. This power supply method makes the working efficiency of these wireless communication RF power amplifiers low. Summary of the invention

[0003] The present application aims to provide a power supply module and a mobile terminal to improve the working efficiency of a radio frequency power amplifier for wireless communication.

[0004] In a first aspect, an embodiment of the present application provides a power supply module, the power supply module being used to supply power to a radio frequency power amplifier; the power supply module comprising: A power detector, used to detect the power of the RF signal before or after power amplification by the RF power amplifier, convert the detected power into a detection voltage and feed it back to the reference voltage input terminal of the boost power supply, so that the detection voltage is used as the reference voltage of the boost power supply; A boost power supply is used to compare the output voltage with the reference voltage, control the charging and discharging process according to the comparison result so that the output voltage follows the reference voltage, and output the output voltage to the RF power amplifier as the power supply voltage of the RF power amplifier.

[0005] In a second aspect, an embodiment of the present application provides a mobile terminal, the mobile terminal comprising: A radio frequency power amplifier, used to amplify the power of a radio frequency signal; and; The power supply module described in the first aspect of the embodiment of the present application is used to supply power to the RF power amplifier.

[0006] In the power supply module and mobile terminal provided in the embodiments of the present application, a power detector is provided, which performs power detection on the RF signal before or after power amplification by the RF power amplifier, and feeds back the detection voltage to the reference voltage input terminal of the boost power supply, so that the power supply voltage of the RF power amplifier changes with the change of the RF signal power. Thus, a power supply scheme similar to APT (Average Power Tracking) is provided for the RF power amplifier through a hardware circuit, thereby improving the working efficiency of the RF power amplifier.

[0007] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 is a schematic diagram of a circuit structure of a power supply module according to an embodiment of the present application; Figure 2 is a schematic diagram of a circuit structure of a power supply module according to an embodiment of the present application; Figure 3 is a schematic diagram of the relationship between the detection voltage and the output power in the above embodiment; Figure 4 is a schematic diagram of the circuit structure of the boost power supply in the above embodiment; Figure 5 is a schematic diagram of a circuit structure of a power supply module according to an embodiment of the present application; Figure 6 is a schematic diagram of a circuit structure of a power supply module according to an embodiment of the present application; Figure 7 is a schematic diagram of a circuit structure of a power supply module according to an embodiment of the present application; Figure 8 is a schematic diagram of a circuit structure of a power supply module according to an embodiment of the present application; Fig. 9 is a schematic diagram of a circuit structure of a power supply module according to an embodiment of the present application; Fig.10 is a schematic diagram of a circuit structure of a power supply module according to an embodiment of the present application; Fig.11 is a schematic diagram of a circuit structure of a power supply module according to an embodiment of the present application; Fig.12 is a circuit structure diagram of a mobile terminal according to an embodiment of the present application; Fig.13 It is a circuit structure diagram of a mobile terminal according to an embodiment of the present application.

[0009] Reference numerals: 100-power supply module; 110-boost power supply; 111-boost inductor; 112-output filter capacitor; 113-resistance divider; 114-hysteresis comparator; 115-logic control module; 116-first switch; 117-second switch; 120-power detector; 130-delay device; 200-wireless transceiver processor; 300-RF power amplifier; 400-antenna; 1000-mobile terminal. DETAILED DESCRIPTION

[0010] Embodiments of the present invention will be described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0011] The term "first" or "second" in the specification and claims of the present application may include one or more of the features explicitly or implicitly. In the description of the present invention, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0012] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0013] As described in the background art, in the related art, a boost power supply is usually used to provide a constant voltage to power some radio frequency power amplifiers for wireless communications.

[0014] Please see Figure 1 , is a schematic diagram of a circuit structure of a power supply module according to an embodiment of the present application. Figure 1 The power supply module 100 shown is used to power a radio frequency power amplifier for wireless communication, and includes a boost power supply 110 and a power detector 120. The power detector 120 is used to detect the power of the radio frequency signal before or after the radio frequency power amplifier performs power amplification, and convert the detected power into a detection voltage and feed it back to the reference voltage input terminal of the boost power supply 110, so that the detection voltage is used as the reference voltage of the boost power supply 110. The boost power supply 110 is used to compare the output voltage with the reference voltage, control the charging and discharging process according to the comparison result, so that the output voltage changes with the reference voltage, and output the output voltage to the radio frequency power amplifier as the power supply voltage of the radio frequency power amplifier.

[0015] According to the power supply module 100 of the embodiment of the present application, a power detector 120 is provided, and the power detector 120 performs power detection on the RF signal before or after power amplification by the RF power amplifier, and feeds back the detection voltage to the reference voltage input terminal of the boost power supply 110, so that the output voltage of the boost power supply 110 changes with the change of the RF signal power detection voltage. As a result, the supply voltage of the RF power amplifier can be matched with the actual power supply requirement of the RF power amplifier, thereby providing a power supply solution similar to APT for the RF power amplifier through a hardware circuit, thereby improving the working efficiency of the RF power amplifier.

[0016] Moreover, compared with the related art of providing an APT power supply solution for the RF power amplifier through software, providing an APT-like power supply solution for the wireless communication RF power amplifier through hardware circuit does not require complex calibration and software control, and the implementation is simple.

[0017] Combine the following Figure 2-Figure 13 , the power supply module and mobile terminal provided in the embodiments of the present application are described in detail.

[0018] Figure 2 Schematic diagram of a circuit structure of a power supply module according to an embodiment of the present application. Figure 2 As shown, according to some embodiments of the present application, the power detector 120 is specifically arranged at the output end of the RF power amplifier 300, and is specifically used to detect the power of the RF signal after the RF power amplifier 300 performs power amplification, that is, to detect the power POUT of the RF signal output by the RF power amplifier 300, and convert the detected power into a detection voltage VDET and feed it back to the reference voltage input end of the boost power supply 110, so as to use the detection voltage VDET as the reference voltage VREF of the boost power supply 110. The boost power supply 110 is specifically used to compare the output voltage VOUT with the reference voltage VREF, control the charging and discharging process according to the comparison result, so that the output voltage VOUT changes according to the reference voltage VREF, and output the output voltage VOUT to the RF power amplifier 300 as the power supply voltage of the RF amplifier 300.

[0019] Figure 2 In the circuit structure shown, there are multiple voltage mapping relationships, which make the output voltage VOUT of the boost power supply 110 and the power POUT of the RF signal after power amplification by the RF power amplifier 300 have an approximately linear relationship, and the output voltage VOUT can follow the output power POUT of the RF power amplifier.

[0020] Specifically, first, the detection voltage VDET is a voltage obtained by real-time detection of the power POUT of the RF signal after the RF power amplifier 300 performs power amplification, and the detected power is converted into a voltage. The detection voltage VDET and the output power POUT of the RF power amplifier 300 are approximately linearly mapped. Figure 3 As shown. Second, the reference voltage VREF is equal to the detection voltage VDET, which also presents a linear mapping relationship. Third, the output voltage VOUT follows the reference voltage VREF, and there is also a linear mapping relationship between it and the reference voltage VREF. The above linear mapping relationships are mapped so that the output voltage VOUT of the boost power supply 110 and the power POUT of the RF signal after power amplification by the RF power amplifier 300 also present an approximately linear mapping relationship.

[0021] Since the output voltage VOUT is approximately linearly related to the power POUT of the RF signal output by the RF power amplifier 300, the output voltage VOUT is used as the power supply voltage of the RF power amplifier 300 to power the RF power amplifier 300. This enables the power supply voltage of the RF power amplifier 300 to follow the output power changes of the RF power amplifier 300 and match the actual power supply requirements of the RF power amplifier 300, thereby providing the RF power amplifier 300 with a power supply solution similar to APT and improving the working efficiency of the RF power amplifier 300.

[0022] In some embodiments of the present application, an output filter capacitor may be specifically provided in the boost power supply 110, one end of the output filter capacitor may be connected to the voltage output terminal of the boost power supply 110, and one end may be grounded, and the voltage across the output filter capacitor may limit the voltage VOUT outputted by the voltage output terminal. The boost power supply 110 may be specifically used to compare the output voltage VOUT with the reference voltage VREF, and when the output voltage VOUT is lower than the reference voltage VREF, the output filter capacitor is charged to increase the output voltage, and when the output voltage VOUT is higher than the reference voltage VREF, the output filter capacitor is discharged to reduce the output voltage.

[0023] In practical applications, there is a delay time from detecting the change in the power POUT of the RF signal after the RF power amplifier 300 performs power amplification to adjusting the power supply voltage of the RF power amplifier 300 based on the power change. For example, if the power POUT change of the RF signal output by the RF power amplifier 300 is detected at the first moment, the power supply voltage of the RF power amplifier 300 will not change accordingly until the second moment, and the power supply voltage change received by the RF power amplifier 300 and the power change of the RF signal output by the RF power amplifier 300 may differ in timing by a time gap, that is, the change in the power supply voltage VOUT may be later than the power change of the RF signal, and may not be synchronized with the power of the RF signal in time.

[0024] In this case, reserving sufficient supply voltage margin for the RF power amplifier 300, that is, making the supply voltage of the RF power amplifier higher than the voltage actually required by the RF power amplifier, can make the overall working efficiency of the RF power amplifier 300 still better than that of constant voltage power supply.

[0025] In some embodiments of the present application, the boost power supply 110 can specifically obtain the divided voltage VPART of the output voltage, compare the divided voltage VPART with the reference voltage VREF, and control the charging and discharging process according to the comparison result, so that the divided voltage VPART swings around the reference voltage VREF, that is, the divided voltage is approximately equal to the reference voltage VREF. Since the divided voltage VPART is a partial voltage of the output voltage VOUT, by configuring the voltage division ratio between the divided voltage VPART and the output voltage VOUT, the linear proportional relationship between the output voltage VOUT and the reference voltage VREF can be configured, thereby configuring the power supply voltage of the RF power amplifier 300 so that the power supply voltage of the RF power amplifier has a power supply voltage margin compared to the voltage actually required by the RF power amplifier, that is, the power supply voltage of the RF power amplifier is greater than the voltage actually required by the RF power amplifier.

[0026] In practical applications, the voltage divider ratio of the boost power supply can be configured based on the actual performance requirements of the RF power amplifier, thereby configuring the proportional relationship between the output voltage VOUT and the reference voltage VREF to provide an appropriate power supply voltage for the RF power amplifier.

[0027] Figure 4 is a schematic diagram of a circuit structure of a boost power supply according to an embodiment of the present application. Figure 4 As shown, according to some embodiments of the present application, the boost power supply 110 specifically includes: a boost inductor 111, an output filter capacitor 112, a resistor divider 113, a hysteresis comparator 114, a logic control module 115, a first switch 116 and a second switch 117.

[0028] The first switch 115 and the second switch 117 are, for example, triode switches. The voltage input end of the resistor divider 113 is connected to the voltage output end of the boost power supply 110, the voltage output end of the resistor divider 113 is connected to a comparison input end of the hysteresis comparator 114, and the other comparison input end of the hysteresis comparator 114 is connected to the reference voltage input end of the boost voltage 110. The comparison result output end of the hysteresis comparator 114 is connected to the input end of the logic control module 115, and the output end of the logic control module 115 is respectively connected to the control ends of the first switch 116 and the second switch 117. The input end of the second switch 117 is connected to the output end of the boost inductor 111, and the output end of the second switch 117 is grounded. The input end of the boost inductor 111 is connected to the voltage input end of the boost power supply 110, and the output end of the boost inductor 111 is also connected to the input end of the first switch 116, and the output end of the first switch 116 is connected to the voltage output end of the boost power supply 110.

[0029] The resistor voltage divider 113 is used to divide the output voltage VOUT of the voltage output terminal of the boost power supply 110 to obtain a divided voltage VPART of the output voltage VOUT.

[0030] The hysteresis comparator 114 is used to compare the divided voltage VPART with the reference voltage VREF and output a comparison result.

[0031] The logic control module 115 is used to control the first switch 116 to be turned off and the second switch 117 to be turned on when the comparison result shows that the divided voltage VPART is greater than the reference voltage VREF, so as to discharge the output filter capacitor 112, reduce the output voltage VOUT, and charge the boost inductor with the input voltage VIN; when the comparison result shows that the divided voltage VPART is less than the reference voltage VREF, control the first switch 116 to be turned on and the second switch 117 to be turned off, so as to charge the output filter capacitor 112 through the boost inductor 111, so as to increase the output voltage VOUT.

[0032] Therefore, the divided voltage VPART always swings around the reference voltage VREF, VPART=VREF, and the divided voltage VPART changes with the reference voltage VREF. Since the divided voltage VPART is proportional to the output voltage VOUT, the output voltage VOUT changes with the reference voltage VREF.

[0033] For example, the resistor divider may specifically include: a first resistor R1 and a second resistor R2, wherein the first end of the first resistor R1 is connected to the voltage input end of the resistor divider, the second end of the first resistor R1 is connected to the first end of the second resistor R2, and the second end of the second resistor R2 is grounded. The connection point between the first resistor R1 and the second resistor is connected to the voltage output end of the resistor divider. Therefore, VPART=VOUT*R2 / (R1+R2)=VREF, VOUT=VREF*(R1+R2) / R2, and the output voltage VOUT changes with the reference voltage VREF.

[0034] In practical applications, by configuring the resistance values ​​of the first resistor R1 and the second resistor R2, the ratio between the output voltage VOUT and the reference voltage VREF can be configured, and the output voltage VOUT can be configured to an appropriate voltage, thereby providing an appropriate power supply voltage for the RF power amplifier and providing a power supply voltage margin for the RF power amplifier.

[0035] Of course, the resistor voltage divider can also be other voltage dividing structures. As long as the voltage dividing ratio between the voltage dividing voltage and the output voltage is adjusted, the effect of providing appropriate power supply voltage for the RF power amplifier and providing power supply voltage margin for the RF power amplifier can be achieved. No further details will be given here.

[0036] Figure 5 A schematic diagram of a circuit structure of a power supply module according to an embodiment of the present application. Figure 5 The power supply module shown is Figure 2 The circuit structure of the power supply module shown is similar, except that: Figure 5 In the power supply module 100 shown, the power detector 120 is specifically arranged at the input end of the RF power amplifier 300, and is specifically used to detect the power of the RF signal before the RF power amplifier 300 performs power amplification, that is, the power PIN of the RF signal input by the RF power amplifier, and convert the detected power into a detection voltage VDET and feed it back to the reference voltage input end, so that the detection voltage VDET is used as the reference voltage VREF.

[0037] By detecting the power PIN of the RF signal input to the RF power amplifier 300, converting the detected power into a detection voltage VDET and feeding it back to the reference voltage input terminal, and using the detection voltage VDET as the reference voltage VREF, the power supply voltage VOUT of the RF power amplifier 300 can follow the input power change of the RF power amplifier 300, so that the power supply voltage VOUT matches the actual power supply requirement of the RF power amplifier 300, thereby providing a power supply solution similar to APT for the RF power amplifier 300 and improving the working efficiency of the RF power amplifier 300.

[0038] Among them, similar to the above-mentioned embodiment, the boost power supply 110 can specifically obtain the divided voltage VPART of the output voltage VOUT, compare the divided voltage VPART with the reference voltage VREF, and control the charging and discharging process according to the comparison result, so that the divided voltage VPART swings around the reference voltage VREF and follows the change of the reference voltage VREF. By reasonably configuring the voltage division ratio of the divided voltage VPART and the output voltage VOUT in the boost power supply 110, an appropriate supply voltage margin can be provided for the RF power amplifier 300, so that the RF power amplifier 300 can still obtain better overall working efficiency when the supply voltage signal is delayed compared to the RF signal.

[0039] In other embodiments, a delay device 130 may be further added to further improve the overall working efficiency of the RF power amplifier 300 by reducing or eliminating the delay between the supply voltage signal received by the RF power amplifier 300 and the RF signal received by the RF power amplifier 300 .

[0040] Figure 6 This is a schematic diagram of a circuit structure of a power supply module according to an embodiment of the present application. Figure 6 The power supply module shown is Figure 5 The circuit structure of the power supply module shown is similar to Figure 5 The difference is, Figure 6 The circuit structure shown in Figure 5 Based on the circuit structure shown, a delay device 130 is further added. The delay device 130 is connected in series between the power detector 120 and the RF power amplifier 300, and is used to delay the RF signal after power detection so that the RF power amplifier 300 can power amplify the delayed RF signal.

[0041] In practical applications, by reasonably configuring the delay time of the delay device 130, the change of the delayed RF signal can be synchronized with the change of the power supply voltage signal in timing, so that the change of the power supply voltage of the RF power amplifier 300 can keep up with the power change required for the RF power amplifier 300 to power amplify the RF signal. As a result, the power supply voltage of the RF power amplifier 300 matches the actual power supply requirement of the RF power amplifier 300, and the RF power amplifier 300 always operates near a better efficiency point, thereby improving its overall working efficiency.

[0042] In some embodiments of the present application, the delay device 130 is configured to delay the radio frequency signal so that the change of the delayed radio frequency signal is synchronized with the change of the power supply voltage signal.

[0043] It is worth mentioning that in the above embodiment, the power detector 120 is separated from the RF power amplifier 300. In other embodiments, the power detector 120 can be integrated with the RF power amplifier 300, such as Figure 7 As shown. It can be understood that, whether discrete or integrated, the power supply voltage of the RF power amplifier 300 can be changed with the change of the RF signal power, thereby improving the working efficiency of the RF power amplifier 300. Of course, in addition to the power detector 120, the delay device 130 can also be integrated with the RF power amplifier.

[0044] In the above embodiment, the RF power amplifier 300 can be a RF power amplifier for wireless communication with a relatively simple communication system in the mobile terminal, such as a satellite communication RF power amplifier, a 2G communication RF power amplifier, or a Bluetooth communication RF power amplifier, which are not sensitive to time delay and are generally powered by a fixed voltage. The power supply module 100 provided in the embodiment of the present application is used to power these RF power amplifiers, which can improve the working efficiency of these RF power amplifiers.

[0045] It is worth mentioning that the improvement of the working efficiency of the RF power amplifier can reduce the power consumption of the RF power amplifier. If it is applied to a RF power amplifier with high power consumption such as satellite communication in a mobile terminal, that is, when the RF power amplifier 300 is a satellite communication RF power amplifier, its power consumption is reduced more, which can significantly extend the use time of the mobile terminal.

[0046] Of course, there may be multiple RF power amplifiers 300, such as multiple satellite communication RF power amplifiers, 2G communication RF power amplifiers, or Bluetooth communication RF power amplifiers. The power supply module 100 provided in the embodiment of the present application can provide power for multiple RF power amplifiers 300 respectively.

[0047] That is to say, in the embodiment of the present application, the RF power amplifier 300 includes at least one of the following: a satellite communication RF power amplifier, a 2G communication RF power amplifier, and a Bluetooth communication RF power amplifier.

[0048] It is understandable that the circuit structure shown in the above embodiment is a simplified schematic diagram of the circuit structure of the power supply module. The circuit structure of the power supply module according to the embodiment of the present application is not limited to the circuit structure shown in the above embodiment.

[0049] For example, in the above embodiment, Figure 2 The circuit structure shown can also be implemented as follows Figure 8 The circuit structure shown, Figure 5 The circuit structure shown can also be implemented as follows Fig. 9 The circuit structure shown, Figure 6 The circuit structure shown can be implemented as Fig.10 The circuit structure shown, Figure 7 The circuit structure shown can be implemented as Fig.11 The circuit structure shown. Figure 8 , Fig. 9 , Fig.10 , Fig.11 The circuit structure shown in is similar to the circuit structure in the corresponding figure in the aforementioned embodiment, wherein the boost power supply 110 is more complex and the power detector 120 is implemented by a detector. However, like the corresponding circuit structure in the aforementioned embodiment, it can also improve the overall working efficiency of the RF power amplifier 300 and reduce the power consumption of the RF power amplifier 300, which will not be repeated here.

[0050] in, Figure 8 , Fig. 9 , Fig.10 , Fig.11 In FIG. 1 , PA (Power Amplifier) ​​represents a radio frequency power amplifier. In addition to performing linear voltage division on the output voltage VOUT based on a resistor divider composed of a first resistor R1 and a second resistor R2 , the boost power supply 110 may also perform linear voltage division on the output voltage VOUT based on other voltage division structures.

[0051] In addition, the present application embodiment also provides a mobile terminal, such as Fig.12 As shown. Fig.12 As shown, the mobile terminal 1000 includes: The radio frequency power amplifier 300 is used to amplify the power of the radio frequency signal; The power supply module 100 is used to supply power to the RF power amplifier 300 .

[0052] Among them, the power supply module 100 can be the power supply module provided by any of the above embodiments, and has the same function. Please refer to the description in the above embodiments for details, which will not be repeated here.

[0053] The mobile terminal 1000 provided in the embodiment of the present application can improve the working efficiency of the RF power amplifier 300. The improvement of the working efficiency of the RF power amplifier 300 can reduce the power consumption of the RF power amplifier 300 and extend the use time of the mobile terminal 1000.

[0054] In one implementation of the embodiment of the present application, the RF power amplifier 300 includes at least one of the following: a satellite communication RF power amplifier, a 2G communication RF power amplifier, and a Bluetooth communication RF power amplifier. RF power amplifiers such as satellite communication RF power amplifiers, 2G communication RF power amplifiers, and Bluetooth communication RF power amplifiers are RF power amplifiers for wireless communications with relatively simple communication standards, which are not very sensitive to delays. By powering them with the above power supply scheme, the working efficiency of the RF power amplifier can be improved without affecting the function of the RF power amplifier itself, and the power consumption of the RF power amplifier can be reduced.

[0055] In order to further reduce power consumption and extend the use time of the mobile terminal, when there is only one RF power amplifier 300, the RF power amplifier 300 may be a RF power amplifier with higher power consumption such as satellite communication. Of course, there may be multiple RF power amplifiers 300, for example, multiple of a satellite communication RF power amplifier, a 2G communication RF power amplifier, and a Bluetooth communication RF power amplifier.

[0056] Of course, the circuit structure of the mobile terminal provided in the embodiment of the present application is not limited to Fig.12 For example, Fig.13 As shown, according to the mobile terminal 1000 of the embodiment of the present application, Fig.11 On this basis, it may also include: The wireless transceiver processor 200 is used to convert the communication signal into a radio frequency signal, and input the radio frequency signal into the radio frequency power amplifier 300, so that the radio frequency power amplifier 300 amplifies the radio frequency signal; The antenna 400 is used to convert the radio frequency signal after power amplification by the radio frequency power amplifier 300 into electromagnetic waves for radiation.

[0057] In some embodiments of the present application, the RF power amplifier 300 includes at least one of the following: a satellite communication RF power amplifier, a cellular communication RF power amplifier, and a Bluetooth communication RF power amplifier. The wireless transceiver processor 200 includes at least one of the following: a satellite communication wireless transceiver processor, a cellular communication wireless transceiver processor, and a Bluetooth communication wireless transceiver processor. The antenna 400 includes at least one of the following: a satellite communication antenna, a cellular communication antenna, and a Bluetooth communication antenna.

[0058] Among them, based on changes in application scenarios, the wireless transceiver processor 200, the RF power amplifier 300, and the antenna 400 can be changed.

[0059] For example, in one application scenario, the wireless transceiver processor 200 can specifically be a satellite communication wireless transceiver processor, the RF power amplifier 300 can specifically be a satellite communication RF power amplifier, the communication signal can specifically be a satellite communication signal, which can be a digital baseband signal for satellite communication, and the antenna 400 can specifically be a satellite communication antenna.

[0060] As a result, a similar APT power supply solution can be provided for the satellite communication RF power amplifier in the mobile terminal, thereby improving the overall working efficiency of the satellite communication RF power amplifier and reducing the power consumption of the satellite communication RF power amplifier. Since the power consumption of the satellite communication RF power amplifier is usually high, under this power supply mode, the overall working efficiency of the RF power amplifier is improved and the power consumption is reduced more significantly, and the use time of the mobile terminal can be more significantly extended.

[0061] For example, in one application scenario, the wireless transceiver processor 200 can specifically be a 2G communication wireless transceiver processor, the RF power amplifier 300 can specifically be a 2G communication RF power amplifier, the communication signal can specifically be a 2G communication signal, which can be a digital baseband signal for 2G communication, and the antenna 400 can specifically be a 2G communication antenna.

[0062] In this way, a similar APT power supply solution can be provided for the 2G communication RF power amplifier in the mobile terminal, thereby improving the overall working efficiency of the 2G communication RF power amplifier, reducing the power consumption of the 2G communication RF power amplifier, and extending the use time of the mobile terminal.

[0063] For example, in one application scenario, the wireless transceiver processor 200 can specifically be a Bluetooth communication wireless transceiver processor, the RF power amplifier 300 can specifically be a Bluetooth communication RF power amplifier, the communication signal can specifically be a Bluetooth communication signal, which can be a digital baseband signal for Bluetooth communication, and the antenna 400 can specifically be a Bluetooth communication antenna.

[0064] In this way, a similar APT power supply solution can be provided for the Bluetooth communication RF power amplifier in the mobile terminal, thereby improving the overall working efficiency of the Bluetooth communication RF power amplifier, reducing the power consumption of the Bluetooth communication RF power amplifier, and extending the use time of the mobile terminal.

[0065] Of course, in some application scenarios, the RF power amplifier 300 can be multiple satellite communication RF power amplifiers, Bluetooth communication RF power amplifiers, and 2G communication RF power amplifiers, the wireless transceiver processor can be multiple satellite communication wireless transceiver processors, cellular communication wireless transceiver processors, and Bluetooth communication wireless transceiver processors, and the antenna can be multiple satellite communication antennas, cellular communication antennas, and Bluetooth communication antennas. As a result, the working efficiency of various RF power amplifiers in the mobile terminal can be further improved, the power consumption of various RF power amplifiers can be reduced, and the use time of the mobile terminal can be further extended.

[0066] The above is the power supply module and mobile terminal provided in the embodiments of the present application. Other structures and operations in the power supply module and mobile terminal according to the embodiments of the present application are known to ordinary technicians in the field and will not be described in detail here.

[0067] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A power supply module (100), characterized in that: The power supply module (100) is used to supply power to the radio frequency power amplifier (300); the power supply module (100) comprises: A power detector (120) for performing power detection on the radio frequency signal before or after power amplification by the radio frequency power amplifier (300), converting the detected power into a detection voltage and feeding it back to the reference voltage input terminal of the boost power supply (110), so as to use the detection voltage as the reference voltage of the boost power supply (110); A boost power supply (110) is used to compare the output voltage with the reference voltage, control the charging and discharging process according to the comparison result so that the output voltage follows the reference voltage, and output the output voltage to the radio frequency power amplifier (300) as the power supply voltage of the radio frequency power amplifier (300).

2. The power supply module (100) according to claim 1, characterized in that: The power detector (120) is arranged at the output end of the radio frequency power amplifier (300) and is used to detect the power of the radio frequency signal after the radio frequency power amplifier (300) performs power amplification; or, The power detector (120) is arranged at the input end of the radio frequency power amplifier, and is used to perform power detection on the radio frequency signal before the radio frequency power amplifier (300) performs power amplification.

3. The power supply module (100) according to claim 2, characterized in that: In the case where the power detector (120) is arranged at the input end of the radio frequency power amplifier (300), the power supply module further comprises: The delay device (130) is connected in series between the power detector (120) and the radio frequency power amplifier (300), and is used to delay the radio frequency signal after power detection, so that the radio frequency power amplifier (300) amplifies the power of the delayed radio frequency signal.

4. The power supply module (100) according to claim 3, characterized in that: The delay device (130) is configured to delay the radio frequency signal so that a change in the delayed radio frequency signal is synchronized with a change in the supply voltage signal.

5. The power supply module (100) according to any one of claims 1-4, characterized in that: The boost power supply (110) is specifically used to compare the output voltage with the reference voltage, and when the output voltage is lower than the reference voltage, charge the output filter capacitor to increase the output voltage, and when the output voltage is higher than the reference voltage, discharge the output filter capacitor to reduce the output voltage.

6. The power supply module (100) according to claim 5, characterized in that: The boost power supply (110) comprises: a boost inductor (111), an output filter capacitor (112), a resistor divider (113), a hysteresis comparator (114), a logic control module (115), a first switch (116), and a second switch (117); The voltage input end of the resistor voltage divider (113) is connected to the voltage output end of the boost power supply (110), the voltage output end of the resistor voltage divider (113) is connected to a comparison input end of the hysteresis comparator (114), and the other comparison input end of the hysteresis comparator (114) is connected to the reference voltage input end of the boost voltage (110); The comparison result output end of the hysteresis comparator (114) is connected to the input end of the logic control module (115), and the output end of the logic control module (115) is respectively connected to the control ends of the first switch (116) and the second switch (117); The input end of the second switch (117) is connected to the output end of the boost inductor (111), the output end of the second switch (117) is grounded, the input end of the boost inductor (111) is connected to the voltage input end of the boost power supply (110), the output end of the boost inductor (111) is also connected to the input end of the first switch (116), and the output end of the first switch (116) is connected to the voltage output end of the boost power supply (110); The logic control module (115) is used to control the first switch (116) to be turned off and the second switch (117) to be turned on when the comparison result shows that the divided voltage of the output voltage is greater than the reference voltage, so as to discharge the output filter capacitor (112), reduce the output voltage, and charge the boost inductor (111) with the input voltage of the boost power supply (110); and when the comparison result shows that the divided voltage is less than the reference voltage, control the first switch (116) to be turned on and the second switch (117) to be turned off, so as to charge the output filter capacitor (112) through the boost inductor (111), so as to increase the output voltage.

7. The power supply module (100) according to claim 5, characterized in that: The resistor voltage divider (113) comprises: a first resistor and a second resistor; the first end of the first resistor is connected to the voltage input end of the resistor voltage divider, the second end of the first resistor is connected to the first end of the second resistor, and the second end of the second resistor is grounded; and the connection point between the first resistor and the second resistor is connected to the voltage output end of the resistor voltage divider (113).

8. A mobile terminal (1000), characterized in that: The mobile terminal (1000) comprises: A radio frequency power amplifier (300), used to amplify the power of a radio frequency signal; and The power supply module (100) according to any one of claims 1 to 7, used to supply power to the radio frequency power amplifier (300).

9. The mobile terminal (1000) according to claim 8, characterized in that The radio frequency power amplifier (300) comprises at least one of the following: a satellite communication radio frequency power amplifier, a cellular communication radio frequency power amplifier, and a Bluetooth communication radio frequency power amplifier.

10. The mobile terminal (1000) according to claim 9, characterized in that: The mobile terminal further includes: A wireless transceiver processor (200) is used to convert a communication signal into a radio frequency signal, and input the radio frequency signal into the radio frequency power amplifier (300), so that the radio frequency power amplifier (300) amplifies the power of the radio frequency signal; An antenna (400) is used to convert the radio frequency signal after power amplification by the radio frequency power amplifier (300) into electromagnetic waves for radiation; in, The wireless transceiver processor (200) comprises at least one of the following: a satellite communication wireless transceiver processor, a cellular communication wireless transceiver processor, and a Bluetooth communication wireless transceiver processor; The antenna (400) comprises at least one of the following: a satellite communication antenna, a cellular communication antenna, and a Bluetooth communication antenna.

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