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WO2018145368A1 - Procédé et terminal de régulation de tension électrique - Google Patents

Procédé et terminal de régulation de tension électrique Download PDF

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Publication number
WO2018145368A1
WO2018145368A1 PCT/CN2017/084844 CN2017084844W WO2018145368A1 WO 2018145368 A1 WO2018145368 A1 WO 2018145368A1 CN 2017084844 W CN2017084844 W CN 2017084844W WO 2018145368 A1 WO2018145368 A1 WO 2018145368A1
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WO
WIPO (PCT)
Prior art keywords
voltage
target
control signal
terminal
preset condition
Prior art date
Application number
PCT/CN2017/084844
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English (en)
Chinese (zh)
Inventor
黄腾飞
朱松
王爱猛
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201780026317.4A priority Critical patent/CN109075749B/zh
Publication of WO2018145368A1 publication Critical patent/WO2018145368A1/fr

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers

Definitions

  • the embodiments of the present application relate to a WiFi communication system, and in particular, to a voltage control method and a terminal.
  • PA power amplifier
  • a solution for providing a fixed supply voltage (such as a fixed high voltage or a fixed low voltage) for the PA according to the priority of linearity and efficiency in the WiFi system is provided for the PA, such as when the linearity priority is greater than
  • the PA is powered by a high voltage close to the upper limit voltage within the allowable range of the above specifications.
  • the low voltage of the lower limit voltage within the allowable range of the above specifications is used to supply the PA.
  • the linearity of the PA is high, and at the same time, the efficiency of the PA is lowered, and the power consumption is increased.
  • the efficiency of the PA is high, and the power consumption is lowered.
  • the linearity of the PA is lowered. Therefore, in the actual working scenario, the solution for providing a fixed supply voltage for the PA cannot meet the different requirements of the linearity and efficiency of the PA in different working scenarios. For example, the linearity requirement of the PA in some working scenarios is higher than the efficiency requirement, and the other part. The working scenario has a higher efficiency requirement for the PA than the linearity requirement.
  • the embodiment of the present application provides a voltage control method and a terminal for changing an output voltage to meet different requirements of linearity and efficiency of a PA in different working scenarios.
  • an embodiment of the present application provides a voltage control method, including:
  • the terminal determines a target parameter of the transmit frame according to the link quality of the target link, where the target link is a link for transmitting the transmit frame, and the target parameter is a related parameter that can represent the link quality of the target link; If the target parameter corresponding to the target link meets the first preset condition, the terminal outputs the first voltage, so that the power amplifier operates in the high linearity mode; again, if the target parameter corresponding to the target link satisfies the second preset Condition, the terminal outputs a second voltage to cause the power amplifier to operate in the high efficiency mode.
  • the embodiment of the present application has the following advantages: the terminal acquires a target parameter of a transmission frame corresponding to the target link; when the target parameter meets the preset condition, the terminal determines that the output voltage is close to the normal working range of the PA.
  • the first voltage of the upper limit voltage it should be understood that the first voltage is a high voltage at this time; when the target parameter does not satisfy the preset condition, the terminal output voltage is a second voltage close to the lower limit voltage within the normal working voltage range of the PA, which should be understood At this time, the second voltage is a low voltage.
  • the embodiment of the present application can change the voltage level of the output voltage, so that when the output voltage is used for powering the PA, the linearity and efficiency of the PA pair in different working scenarios can be satisfied.
  • Different requirements for example, in an application scenario where the linearity requirement is higher than the efficiency requirement, the terminal can switch to a high voltage to supply power to the PA to improve linearity; in an application scenario where the efficiency requirement is higher than the linearity requirement, the terminal can switch to Low voltage powers the PA, increasing efficiency while reducing power consumption.
  • the target parameter includes a power, a rate, and a coded modulation mechanism.
  • the target parameters of the transmit frame include: transmit frame power, and transmit. Frame rate or transmit frame coding modulation mechanism.
  • the first preset condition when the target parameter is power, the first preset condition is: the power is less than or equal to the first preset threshold; When the frame power is not greater than the first preset threshold, the terminal outputs the first voltage to the PA for power supply, wherein the first preset threshold is a power value that needs to be determined according to the actual application scenario, and the first voltage is in the PA. Corresponding high voltage, the first voltage is close to an upper limit voltage within a normal operating voltage range of the PA;
  • the second preset condition is: the power is greater than the first preset threshold; at this time, when the transmit frame power is greater than the first preset threshold, the terminal outputs the second voltage to the PA for power supply, wherein the first preset threshold is According to the actual application scenario, the determined transmit frame power value is required, and the second voltage is a low voltage corresponding to the actual application scenario of the PA, and the second voltage is close to the lower limit voltage of the normal operating voltage range of the PA.
  • the operating voltage range (high linearity mode or high efficiency mode) of the PA is judged by transmitting the frame power, so that the terminal selectively outputs the first voltage or the second voltage to supply power to the PA.
  • the first preset condition is: the rate is greater than or equal to the second preset threshold, and at this time, when the transmitting When the frame rate is not less than the second preset threshold, the terminal outputs the first voltage to the PA for power supply, wherein the second preset threshold is a transmit frame rate value determined according to the actual application scenario, which is equivalent to the first corresponding to the transmit frame power.
  • the preset threshold, the first voltage is a voltage close to the upper limit voltage in the normal working voltage range of the PA, which can be understood as a high voltage;
  • the second preset condition is: the rate is less than the second preset threshold.
  • the terminal outputs the second voltage to the PA for power supply, where the second preset threshold is based on the actual
  • the transmit frame rate value determined by the application scenario is equivalent to the first preset threshold corresponding to the transmit frame power, and the second voltage is a voltage close to the lower limit voltage of the normal operating voltage range of the PA, which can be understood as a low voltage.
  • the first preset condition is: the coded modulation mechanism is greater than or equal to a third preset threshold;
  • the terminal outputs the first voltage, where the first voltage is a transmit frame coding modulation mechanism determined according to the actual application scenario (eg, when the third preset threshold is MCS5, if the transmit frame coding modulation mechanism is MCS6, MCS7, MCS8, etc., the terminal determines that the transmit frame coding modulation mechanism is not less than a third preset threshold), the third The preset threshold is equivalent to a first preset threshold corresponding to the transmit frame power, and a second preset threshold corresponding to the transmit frame rate, and the first voltage is a voltage close to the upper limit voltage in the normal working voltage range of the PA, which can be understood as a high voltage. ;
  • the second preset condition is that the coded modulation mechanism is smaller than the third preset threshold. At this time, when the transmit frame coding modulation mechanism is smaller than the third preset threshold, the terminal outputs the second voltage, where the second voltage is based on the actual application.
  • the transmit frame coding modulation mechanism determined by the scenario (for example, when the third preset threshold is MCS5, if the transmit frame coding modulation mechanism is MCS4, MCS3, MCS2, etc., the terminal determines that the transmit frame coding modulation mechanism is smaller than the third preset threshold),
  • the third preset threshold is equivalent to the first preset threshold corresponding to the transmit frame power, and the second preset threshold corresponding to the transmit frame rate, and the second voltage is a voltage close to the lower limit voltage of the normal working voltage range of the PA, which can be understood as low voltage.
  • the method before the terminal outputs the first voltage, the method further includes:
  • the terminal generates a target control signal, wherein the target control signal includes two or more control signals.
  • the terminal outputs the first voltage when the target control signal includes two control signals, that is, the first control signal or the second control signal, the terminal outputs the first voltage, include:
  • the terminal generates the first voltage as the PA power supply according to the first control signal, wherein the first control signal can be a high level control signal, and the related descriptions can be seen in the above several possible implementation manners, which are not described herein again;
  • the terminal outputs the second voltage, including:
  • the second power is generated by the terminal according to the second control signal, and the second control signal is a PA power supply.
  • the second control signal may be a low level control signal.
  • the terminal when the target control signal includes at least three control signals, the terminal generates the target control signal, including:
  • the terminal generates any one of the at least three control signals, so that the terminal controls the PA to operate in a working mode corresponding to the target control signal, wherein one control signal corresponds to a different working mode.
  • the embodiment of the present application provides a terminal, where the terminal has a function of implementing terminal behavior in the foregoing method embodiment.
  • This function can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • an embodiment of the present application provides a terminal, including: a control circuit, a power supply circuit, and a PA; when the terminal is running, the control circuit, the power supply circuit, and the PA perform corresponding operations of any one of the first aspects, The terminal is caused to perform the voltage control method according to any one of the above first aspects.
  • an embodiment of the present application provides a computer readable storage medium, configured to store computer software instructions used by the terminal, when executed on a computer, to enable the computer to perform any one of the foregoing first aspects. Voltage control method.
  • an embodiment of the present application provides a computer program product comprising instructions that, when run on a computer, cause the computer to perform the voltage control method of any of the above first aspects.
  • FIG. 1 is a schematic diagram of a system framework provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a voltage control method according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a terminal according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of another terminal according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of still another terminal according to an embodiment of the present application.
  • the embodiment of the present application provides a voltage control method and a terminal for changing the voltage level of the output voltage to meet the different requirements of the linearity and efficiency of the PA in different working scenarios.
  • the terminal 10 is mainly used in a WiFi communication system.
  • the terminal 10 can be used in a wireless router, a mobile terminal, or an OTT (over the top, OTT) box.
  • the terminal 10 includes a control circuit 101, and a power amplifier. a power amplifier (PA) 102, and a power supply circuit 103, wherein the control circuit 101 has a judgment function.
  • the control circuit 101 issues a corresponding control signal according to different target parameters of the transmission frame (including power, rate, or code modulation mechanism, etc.).
  • the power supply circuit 103 so that the power supply circuit supplies different output voltages to the power amplifier 102.
  • the control circuit 101 can determine the target parameter of the transmitted frame (hereinafter, the power is taken as an example), and the specific determining process may be When the power of the transmission frame satisfies a preset condition (for example, the power of the transmission frame is greater than the preset threshold power value, that is, the first preset threshold), the control circuit 101 outputs a first control signal (such as a high level control signal) to the power supply circuit.
  • a preset condition for example, the power of the transmission frame is greater than the preset threshold power value, that is, the first preset threshold
  • the power supply circuit 103 outputs a first voltage (such as a high voltage) to power the power amplifier 102, so that the power amplifier 102 operates in a high linearity mode, improving linearity; when the power of the transmitted frame does not satisfy the preset condition (If the power of the transmission frame is less than the preset threshold power value, that is, the first preset threshold), the control circuit 101 outputs a second control signal (such as a low level control signal) to the power supply circuit 103, so that the power supply circuit 103 outputs the second voltage.
  • the power amplifier 102 is powered (e.g., low voltage) to operate the power amplifier 102 in a high efficiency mode to increase efficiency while reducing power consumption.
  • the terminal 10 may not include the power supply circuit 103.
  • the terminal 10 includes the control circuit 101 and the power amplifier 102; at this time, the control circuit 101 may output different Control signal, in order to control the power amplifier 102 to operate in different working modes, specifically (where the target parameter is exemplified by power):
  • the power is divided into N different power ranges according to the size of the power value (such as range A, range B, range C, and range D, etc., N is not less than a positive integer of 2, also the PA
  • the operating voltage range determines N different control signals according to the N different power ranges, and the control signal may include: a control signal A, a control signal B, a control signal C, and a control signal D, etc., wherein, The signal is a level divided according to different voltage values; secondly, when the power of the transmitted frame belongs to the range A, the control circuit 101 outputs the control signal A to control the power amplifier 102 to operate in
  • the terminal 10 may also include the power supply circuit 103.
  • the normal operating voltage range of the PA may be divided into the first voltage according to the voltage magnitude.
  • the second voltage such as the normal operating voltage range of the PA, is 3.3V-5V
  • the power supply circuit 103 can provide a first voltage (such as 4.2V-5V) or a second voltage (such as 3.3V-4.2V);
  • the normal operating voltage range of the PA may be divided into at least three voltage ranges in advance, wherein one voltage range corresponds to one target control signal, for example, there are four target control signals, and the normal operation of the PA is performed.
  • the voltage range (eg 3.3V-5V) is divided into four voltage ranges (eg 3.3V-3.7V, 3.7V-4.2V, 4.2V-4.6V, 4.6V-5V). There are no restrictions on this application.
  • the following describes the voltage control method and the terminal in the implementation of the present application from the perspective of the PA operating in the high efficiency mode or the high linearity mode, which may be specifically as follows:
  • an embodiment of the voltage control method in the embodiment of the present application includes:
  • the terminal determines, according to a link quality of the target link, a target parameter of the transmit frame.
  • the terminal determines a target parameter of the transmission frame according to the link quality of the target link, where the target link is a link for transmitting the transmission frame, and the target parameter is a related parameter that represents the link quality of the target link.
  • the above target parameter may be the power, rate or code modulation mechanism of the transmitted frame.
  • the terminal determines that the target parameter meets the first preset condition or the second preset condition. If the target parameter meets the first preset condition, step 203 is performed. If the target parameter meets the second preset condition, step 204 is performed.
  • the terminal determines that the target parameter meets the first preset condition or the second preset condition. If the target parameter meets the first preset condition, step 203 is performed; if the target parameter meets the second preset condition, Then step 204 is performed.
  • the first preset condition is that the power is less than or equal to the first preset threshold
  • the second preset condition is that the power is greater than the second preset threshold
  • step 203 is performed; when the transmit frame power is greater than the first preset threshold, step 204 is performed.
  • the first preset threshold is a power value that is set in advance according to different working scenarios and requirements, and may be specifically 23 dBm. Of course, other preset power values may also be used.
  • the first preset condition is that the rate is greater than or equal to the second preset threshold
  • the second preset condition is that the rate is less than the second preset threshold
  • the first preset condition is that the coded modulation mechanism is greater than or equal to a third preset threshold
  • the second preset condition is that the coded modulation mechanism is smaller than a third preset threshold
  • the mechanism is smaller than the third preset threshold.
  • the transmit frame coding modulation mechanism is any one of MCS5, MCS6, MCS7, MCS8, MCS9, MCS10, MCS11, MCS12, MCS13, MCS14, and MCS15
  • the terminal determines the transmit frame coding modulation.
  • the mechanism is greater than or equal to the third preset threshold.
  • it may also be other preset coding and modulation mechanisms, and the application does not impose any restrictions.
  • the terminal outputs a first voltage.
  • the terminal When the terminal determines that the target parameter of the transmission frame satisfies the first preset condition, the terminal outputs the first voltage.
  • the terminal directly outputs the first voltage to the PA power supply, wherein the first voltage is a voltage close to the upper limit voltage (5V) of the normal operating voltage range of the PA (eg, 3.3V-5V), which can be understood as a high voltage, so that The terminal operates in high voltage mode to ensure high linearity to ensure PA performance.
  • the high voltage can be regarded as a voltage whose voltage value is in the range of 4.2V-5V. The following description of the high voltage is similar, and will not be described below.
  • the terminal first, the terminal generates a first control signal, and then the terminal outputs a first voltage according to the first control signal, where the first voltage is an upper limit voltage within a range of a normal operating voltage of the PA (eg, 3.3V-5V) ( The voltage of 5V) can be understood as a high voltage.
  • the first control signal can be a high level control signal to enable the terminal to operate in a high voltage mode to ensure high linearity to ensure PA performance.
  • the terminal outputs a second voltage.
  • the terminal When the terminal determines that the target parameter of the transmission frame satisfies the second preset condition, the terminal outputs the second voltage.
  • the terminal directly outputs the second voltage to the PA power supply, wherein the second voltage is a voltage close to a lower limit voltage (3.3V) of the normal operating voltage range of the PA (eg, 3.3V-5V), which can be understood as a low voltage,
  • 3.3V a lower limit voltage
  • the terminal is operated in a low voltage mode to improve efficiency and reduce power consumption to ensure PA performance.
  • the low voltage can be regarded as a voltage whose voltage value is in the range of 3.3V-4.2V. The following description of the low voltage is similar, and will not be described below.
  • the terminal first, the terminal generates a second control signal, and then the terminal outputs a second voltage according to the second control signal, wherein the second voltage is a lower limit voltage (eg, 3.3V-5V) lower than a normal operating voltage range of the PA (eg, 3.3V-5V)
  • the voltage of 3.3V can be understood as a low voltage.
  • the second control signal can be a low level control signal to enable the terminal to operate in a low voltage mode, improve efficiency and reduce power consumption to ensure PA performance.
  • the terminal acquires a target parameter of the transmit frame corresponding to the target link; when the target parameter meets the first preset condition, the terminal determines that the output voltage is a first voltage that is close to the upper limit voltage in the normal working range of the PA, so that When the PA operates in the high linearity mode, it should be understood that the first voltage is a high voltage at this time; when the target parameter satisfies the second preset condition, the terminal output voltage is a second voltage close to the lower limit voltage of the normal operating voltage range of the PA. In order to make the PA work in the high efficiency mode, it should be understood that the second voltage is a low voltage at this time. Therefore, the embodiment of the present application can change the voltage level of the output voltage so that when the output voltage is used for powering the PA, Can meet different workplaces The different needs of PA in terms of linearity and efficiency.
  • the voltage control method in the embodiment of the present application is described in detail in the above embodiment.
  • the terminal in the embodiment of the present application will be described below.
  • an embodiment of the terminal in this embodiment of the present application includes:
  • the base of the NPN transistor Q is connected to the judging module 3011, the collector of the NPN transistor Q is connected to one end of the resistor R3, and the emitter of the NPN transistor Q is grounded;
  • the other end of the resistor R3 is connected to one end of the resistor R2 to form a first node, and the other end of the resistor R2 is grounded;
  • the chopper DC-DC includes an input terminal, a feedback back (FB) terminal, and an output terminal, wherein the input terminal is connected to a DC voltage of 12V, the FB terminal is connected to one end of the resistor Rt, and the other end of the resistor Rt is connected to the resistor R1, and Connected to the first node, the other end of the resistor R1 is connected to the output terminal to form an input terminal of the terminal.
  • FB feedback back
  • the judging module 3011 built in the HiSili X X chip 301 functions as a control function for the control circuit to perform a response, and the control circuit may also be a smart chip having the same function, and the present application does not impose any limitation.
  • the chopper DC-DC takes MP14995 as an example.
  • the resistance of resistor Rt is 33K; the resistance of resistor R1 is 60.4K, the resistance of resistor R2 is 13.2K, and the resistance of resistor R3 is 133K.
  • the judging module 3011 built in the HiSili X X chip 301 can be used to determine that the power, rate, and code modulation mechanism of the transmit frame meet the first preset condition or meet the second preset condition.
  • the determining module 3011 outputs a first control signal, that is, a high level to the NPN transistor Q, so that the power supply module 302 outputs a high voltage for the PA power supply; when the second preset condition is met, the determining module 3011 outputs the second control signal, that is, the low level.
  • the NPN transistor Q so that the power supply module 302 outputs a low voltage to power the PA.
  • the circuit component may be appropriately changed so that when the target parameter of the transmission frame satisfies the condition, the first voltage is directly output as the PA power supply, without A first control signal is generated, and the first voltage can be understood as a voltage that causes the PA to operate in a high linearity mode.
  • the second control signal is not generated, and the second output is directly output.
  • the voltage is powered by the PA, so that the PA operates in a high efficiency mode, and no limitation is imposed on this application.
  • the circuit components can be appropriately changed so that when the target parameter of the transmission frame satisfies the condition, the terminal generates high and low levels to directly control the PA to achieve high linearity and high efficiency switching, and for which level control PA Realize Which mode is determined according to the PA requirements, this application does not impose any restrictions. Therefore, the present application does not impose any limitation on the specific implementation manner in which the terminal operates the PA in different modes (high linearity mode or high efficiency mode).
  • the embodiment of the present application further provides a terminal, including: a determining module 401, a first output module 402, and a second output module 403;
  • a determining module 401 configured to determine, according to a link quality of the target link, a target parameter of the transmit frame, where the target link is a link for sending the transmit frame, where the target parameter is a related parameter that represents the quality of the link;
  • the first output module 402 is configured to output a first voltage when the target parameter meets the first preset condition, so that the power amplifier operates in the high linearity mode;
  • the second output module 403 is configured to output a second voltage when the target parameter does not satisfy the preset condition, so that the power amplifier operates in the high efficiency mode.
  • the target parameter includes a power, a rate, or a modulation and coding mechanism.
  • the first preset condition is that the power is less than or equal to the first preset threshold.
  • the first output module is Specifically, when the power is less than or equal to the first preset threshold, outputting the first voltage
  • the second preset condition is that the power is greater than the first preset threshold.
  • the second output module is specifically configured to output the second voltage when the power value is greater than the second preset threshold.
  • the first preset condition is that the rate is greater than or equal to a second preset threshold.
  • the first output module is Specifically, when the rate is not less than a second preset threshold, outputting the first voltage
  • the second preset condition is that the rate is less than the second preset threshold.
  • the second output module is specifically configured to output the second voltage when the rate is less than the second preset threshold.
  • the first preset condition is that the coded modulation mechanism is greater than or equal to a third preset threshold.
  • the first output module is specifically configured to: when the code modulation mechanism is not less than a third preset threshold, output the first voltage;
  • the second preset condition is that the coded modulation mechanism is smaller than the third preset threshold.
  • the second output module is specifically configured to output the first when the coded modulation mechanism is smaller than the third preset threshold. Two voltages.
  • the terminal further includes: a generating module 504, wherein the generating module 504 is configured to generate a target control signal, wherein the target control signal includes at least two control signals.
  • the first output module 502 and the second output module 503 respectively perform the following operations. :
  • the first output module 502 is specifically configured to: output the first voltage according to the first control signal
  • the second output module 503 is specifically configured to: output the second voltage according to the second control signal.
  • the generating module 504 is specifically configured to: generate any one of the at least three control signals, so that the terminal controls The PA operates in the working mode corresponding to the target control signal.
  • FIG. 4 and FIG. 5 can be understood by referring to the related descriptions and effects of the method part of FIG. 2, and details are not described herein.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • a computer readable storage medium A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

L'invention concerne un procédé et un terminal de régulation de tension électrique permettant de modifier la valeur d'une tension de sortie afin de répondre aux différentes demandes de linéarité et d'efficacité par des amplificateurs de puissance dans différents scénarios de travail. Le procédé comprend les étapes suivantes : un terminal détermine des paramètres cibles d'une trame de transmission en fonction de la qualité d'une liaison cible (201), la liaison cible étant une liaison utilisée pour envoyer la trame de transmission, et les paramètres cibles étant des paramètres pertinents pour caractériser la qualité de liaison; lorsque les paramètres cibles satisfont une première condition prédéfinie, le terminal émet une première tension (203) de sorte qu'un amplificateur de puissance fonctionne dans un mode de haute linéarité; lorsque les paramètres cibles satisfont une seconde condition prédéfinie, le terminal émet une seconde tension (204) de sorte que l'amplificateur de puissance fonctionne dans un mode de haute efficacité.
PCT/CN2017/084844 2017-02-13 2017-05-18 Procédé et terminal de régulation de tension électrique WO2018145368A1 (fr)

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Application Number Priority Date Filing Date Title
CN201780026317.4A CN109075749B (zh) 2017-02-13 2017-05-18 一种电压控制方法及终端

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CN201710076888.0 2017-02-13
CN201710076888 2017-02-13

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WO2018145368A1 true WO2018145368A1 (fr) 2018-08-16

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CN111726140A (zh) * 2020-06-19 2020-09-29 维沃移动通信有限公司 功率放大器控制方法、装置、wifi射频电路和电子设备

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CN112650378B (zh) * 2020-12-28 2023-04-25 Oppo（重庆）智能科技有限公司 电子设备、电子设备的功耗优化方法以及存储介质

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