Voltage regulation circuit, chip and electronic equipment

Abstract

The embodiment of the invention provides a voltage regulation circuit, a chip and electronic equipment. The circuit comprises a power amplification module, and the power supply input end of the power amplification module is used for being externally connected with a first power supply; the power amplification module is used for amplifying the input first signal; the first signal comprises a cyclic prefix (CP) signal and an effective data signal; the first end of the first energy storage module is electrically connected with the power supply input end of the power amplification module, and the second end of the first energy storage module is electrically connected with the grounding end; the first energy storage module is used for providing stable power supply voltage for the power amplification module; and the resonance voltage regulation module is electrically connected with the power supply input end of the power amplification module, and the resonance voltage regulation module is used for obtaining the target voltage and regulating the voltage at the power supply input end of the power amplification module to the target voltage in the first time. The efficiency of the power amplifier is improved.

Description

Technical Field

[0001] This application relates to the field of electronic circuit technology, specifically to a voltage regulation circuit, a chip, and an electronic device. Background Technology

[0002] Envelope tracking is a technique that controls the supply voltage (e.g., Vcc) of a power amplifier (PA) in a transmitter's transmit chain based on the envelope of the RF signal amplified by the power amplifier. The idea is to approximate or slightly compress the power amplifier and reduce the PA supply voltage when the instantaneous signal amplitude is low, thereby improving the efficiency of the power amplifier and its power generation. Summary of the Invention

[0003] In view of this, this application provides a voltage regulation circuit, chip, and electronic device to improve the efficiency of a power amplifier.

[0004] In a first aspect, embodiments of this application provide a voltage regulation circuit, including:

[0005] The power amplifier module has its power input terminal connected to an external first power supply; the power amplifier module is used to amplify the input first signal; the first signal includes a cyclic prefix CP signal and a valid data signal.

[0006] The first energy storage module has its first terminal electrically connected to the power input terminal of the power amplifier module, and its second terminal electrically connected to the ground terminal; the first energy storage module is used to provide a stable power supply voltage for the power amplifier module.

[0007] The resonant voltage regulation module is electrically connected to the power input terminal of the power amplifier module. The resonant voltage regulation module is used to acquire the target voltage and adjust the voltage at the power input terminal of the power amplifier module to the target voltage within a first time period. The target voltage is the voltage related to the envelope of the effective data signal of the currently input first signal. The first time period is at least a portion of the time during which the power amplifier module amplifies the CP signal in the currently input first signal.

[0008] In this embodiment, the resonant voltage regulation module can adjust the power amplifier module's supply voltage to the target voltage during the time the power amplifier module amplifies the CP signal of the first signal. This means adjusting the power amplifier's supply voltage based on the envelope of the effective data signal in the first signal. The power amplifier module can then amplify the effective data signal based on the target voltage, improving its power amplifier efficiency. Furthermore, in this embodiment, the resonant adjustment module can adjust the power amplifier module's supply voltage to the target voltage during the time the power amplifier module amplifies the CP signal of the first signal. Moreover, by setting a first energy storage module, a stable power supply can be provided to the power amplifier module during the amplification of the effective data signal of the first signal. This eliminates the need to adjust the magnitude of the first power supply's output signal, decoupling the power amplifier module's supply voltage regulation from the magnitude of the first power supply's output signal. This reduces the bandwidth requirement of the non-regulating module, thereby improving the power supply's steady-state efficiency.

[0009] In one possible implementation of the first aspect, the resonant voltage regulation module includes a resonant submodule and a switching submodule;

[0010] The resonator module is electrically connected to the first terminal and the ground terminal of the switch submodule, and the second terminal of the switch submodule is electrically connected to the power input terminal of the power amplifier module.

[0011] In this embodiment, a switch submodule and a resonant submodule are set in the resonant voltage regulation module. By controlling the switch submodule, the branch between the resonant submodule and the power amplifier module is turned on only in the first time, so that the resonant submodule regulates the power supply voltage of the power amplifier module. At other times, the switch submodule is controlled to turn off the branch between the resonant submodule and the power amplifier module, so that the power supply voltage of the power amplifier module is no longer regulated. This is easy to implement and reduces the design complexity of the voltage regulation circuit.

[0012] In one possible implementation of the first aspect, a first voltage conversion module is also included;

[0013] The output of the first voltage conversion module is electrically connected to the resonant module. The first voltage conversion module is used to convert the first power signal received at the input terminal into a second power signal within a second time period, and transmit the second power signal to the resonant module to store energy for the resonant module, so that the resonant module adjusts the power supply voltage of the power amplifier module to the target voltage within a first time period. The second time period is earlier than the first time period, and the second time period is at least a portion of the time during which the power amplifier module amplifies the effective data signal in the previously input first signal. The second power signal is related to the target voltage.

[0014] Therefore, in this embodiment, to ensure that the resonant module can adjust the power amplifier module's supply voltage to the target voltage within the first time, the first voltage conversion module can store energy in the resonant module within the second time, achieving pre-adjustment of the stored energy. This makes the power amplifier module's supply voltage correlated with the envelope of the input first signal, improving the power amplifier module's efficiency. Furthermore, by designing the first voltage conversion module, the power amplifier module's supply voltage can be adjusted by regulating the resonant module's stored energy, simplifying the circuit implementation and facilitating miniaturization.

[0015] Furthermore, by setting up a first voltage conversion module, the voltage regulation circuit can continuously adjust the power supply voltage of the power amplifier module in accordance with the continuous input first signal, thereby achieving the purpose of the power supply voltage of the power amplifier module changing with the envelope of the first signal and improving the power amplifier efficiency of the power amplifier module.

[0016] In one possible implementation of the first aspect, the input terminal of the first voltage conversion module is used to connect to an external second power supply;

[0017] The first voltage conversion module is specifically used to convert the first power signal output by the second power source into a second power signal.

[0018] In this way, the required energy can be provided to the resonator module through an external second power supply, which improves the stability of the voltage regulation circuit.

[0019] In one possible implementation of the first aspect, the input terminal of the first voltage conversion module is electrically connected to the power input terminal of the power amplifier module;

[0020] The first voltage conversion module is specifically used to take the electrical signal at the power input terminal of the power amplifier module as the first power signal and convert the first power signal into a second power signal.

[0021] In this way, the required energy can be provided to the resonator module through the first power source, reducing the number of external components in the circuit, reducing the space occupied by the circuit, and improving the practicality of the circuit.

[0022] In one possible implementation of the first aspect, the control terminal of the first voltage conversion module is used to connect to the first output terminal of the host computer, and the control terminal of the switch submodule is used to connect to the second output terminal of the host computer.

[0023] The first voltage conversion module is used to receive the first control signal sent by the host computer in the second time period, and convert the first power signal received at the input terminal into a second power signal based on the first control signal, and transmit the second power signal to the resonator module to store energy for the resonator module; and to receive the second control signal sent by the host computer in the first time period, and stop converting the first power signal received at the input terminal into a second power signal based on the second control signal.

[0024] The switching submodule is used to receive a third control signal sent by the host computer in the second time period, and disconnect the branch between the resonant submodule and the power input terminal of the power amplifier module based on the third control signal; and to receive a fourth control signal sent by the host computer in the first time period, and connect the branch between the resonant submodule and the power input terminal of the power amplifier module based on the fourth control signal.

[0025] In other words, the first voltage conversion module and the switching sub-module of the voltage regulation circuit can be controlled by the host computer, which reduces the design complexity of the voltage regulation circuit, reduces the space occupied by the circuit, and improves the practicality of the circuit.

[0026] In one possible implementation of the first aspect, the resonator module includes a first capacitor and an inductor;

[0027] The first terminal of the first capacitor is electrically connected to the first terminal of the inductor and the output terminal of the first voltage conversion module. The second terminal of the first capacitor is grounded, and the second terminal of the inductor is electrically connected to the first terminal of the switch submodule.

[0028] In this way, the resonator module includes a first capacitor and an inductor connected in series. The energy stored in the first energy storage module can be adjusted by adjusting the charging voltage of the first capacitor, thereby adjusting the power supply voltage of the power amplifier module. This reduces the complexity of the circuit design and improves the power amplifier efficiency of the power amplifier module.

[0029] In one possible implementation of the first aspect, the first energy storage module includes a second capacitor.

[0030] In this way, the resonator module can form a CLC series resonant circuit with the first energy storage module, thereby enabling more accurate adjustment of the power amplifier module's supply voltage. This allows the power amplifier module's supply voltage to change in accordance with the envelope of the first signal, improving the power amplifier module's efficiency.

[0031] Secondly, embodiments of this application provide a chip, including: the voltage regulation circuit described in any of the first aspects above.

[0032] Thirdly, embodiments of this application provide an electronic device, including the voltage regulation circuit described in any of the first aspects or the chip described in the second aspect.

[0033] Understandably, the beneficial effects that the chips and electronic devices provided in the second to third aspects above can achieve can be referred to the beneficial effects in the first aspect and any possible implementation method provided above, and will not be repeated here. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0036] Figure 2a This is a schematic diagram of a voltage follower scenario for a power amplifier provided in an embodiment of this application;

[0037] Figure 2b This is a schematic diagram of another voltage follower scenario for a power amplifier provided in an embodiment of this application;

[0038] Figure 3 This is a schematic diagram of a voltage regulation circuit provided in an embodiment of this application;

[0039] Figure 4 A schematic diagram of a frame structure provided in an embodiment of this application;

[0040] Figure 5 A schematic diagram illustrating a scenario for adjusting the power supply voltage of a power amplifier module, provided as an embodiment of this application;

[0041] Figure 6 This is a schematic diagram of another voltage regulation circuit provided in an embodiment of this application;

[0042] Figure 7 This is a schematic diagram of another voltage regulation circuit provided in an embodiment of this application;

[0043] Figure 8 This is a schematic diagram of another voltage regulation circuit provided in an embodiment of this application;

[0044] Figure 9a This is a schematic diagram of another voltage regulation circuit provided in an embodiment of this application;

[0045] Figure 9b This is a schematic diagram of another voltage regulation circuit provided in an embodiment of this application;

[0046] Figure 10aThis is a schematic diagram of another voltage regulation circuit provided in an embodiment of this application;

[0047] Figure 10b This is a schematic diagram of another voltage regulation circuit provided in an embodiment of this application;

[0048] Figure 11a This is a schematic diagram of another voltage regulation circuit provided in an embodiment of this application;

[0049] Figure 11b This is a schematic diagram of another voltage regulation circuit provided in an embodiment of this application;

[0050] Figure 12 This is a schematic diagram illustrating another voltage regulation scenario provided in the embodiments of this application;

[0051] Figure 13 This is a schematic diagram of another voltage regulation circuit provided in an embodiment of this application;

[0052] Figure 14 This is a simulation diagram of a voltage regulation circuit provided in an embodiment of this application. Detailed Implementation

[0053] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0054] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0055] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0056] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0057] Figure 1 This is a schematic diagram of an example of an electronic device 100. The electronic device 100 includes a baseband system 1, a transceiver 2, a front-end system 3, an antenna 4, a power management system 5, a memory 6, a user interface 7, and a battery 8.

[0058] The electronic device 100 can be used to communicate using a variety of communication technologies, including but not limited to 2G, 3G, 4G (including LTE, LTE-Advanced, and LTE-Advanced Pro), 5G, WLAN (e.g., Wi-Fi), WPAN (e.g., Bluetooth and ZigBee), WMAN (e.g., WiMax), and / or GPS technology.

[0059] Transceiver 2 generates RF signals for transmission and processes input RF signals received from antenna 4. It should be understood that various functions associated with transmitting and receiving RF signals can be implemented through one or more [unclear - possibly a typo]. Figure 1 The above is generally represented as the components of transceiver 2. In one example, separate components (e.g., separate circuits or dies) can be provided to handle some types of RF signals.

[0060] The front-end system 3 helps regulate the signals sent to and / or received from the antenna 4. In the illustrated embodiment, the front-end system 3 includes a power amplifier (PA) 11, a low-noise amplifier (LNA) 12, a filter 13, a switch 14, and a duplexer 15. However, other implementations are also possible.

[0061] For example, the front-end system 3 can provide a variety of functions, including but not limited to, amplifying the signal for transmission, amplifying the received signal, filtering the signal, switching between different frequency bands, switching between different power modes, switching between transmission and reception modes, signal duplexing, signal multiplexing (e.g., diplex or triplex), or combinations thereof.

[0062] In some implementations, electronic device 100 supports carrier aggregation, thereby providing flexibility to increase peak data rates. Carrier aggregation can be used for both frequency division duplex (FDD) and time division duplex (TDD), and can be used to aggregate multiple carriers or channels. Carrier aggregation includes contiguous aggregation, where consecutive carriers within the same operating frequency band are aggregated. Carrier aggregation can also be discontinuous and can include carriers that are frequency-separated within a common frequency band and / or in different frequency bands.

[0063] Antenna 4 may include antennas for various types of communication. For example, antenna 4 may include antennas associated with transmitting and / or receiving signals related to a wide variety of frequencies and communication standards.

[0064] In some implementations, antenna 4 supports MIMO communication and / or switchable diversity communication. For example, MIMO communication uses multiple antennas to transmit multiple data streams on a single radio frequency channel. MIMO communication benefits from a higher signal-to-noise ratio, improved coding, and / or reduced signal interference due to spatial multiplexing differences in the radio environment. Switchable diversity refers to communication in which a specific antenna is selected for operation at a specific time. For example, a switch can be used to select a specific antenna from a set of antennas based on various factors such as observed bit error rate and / or signal strength indicators.

[0065] In some embodiments, the electronic device 100 may operate with beamforming. For example, the front-end system 3 may include a phase shifter with a variable phase controlled by the transceiver 2. Additionally, these phase shifters are controlled to provide beamforming and directivity for transmitting and / or receiving signals using the antenna 4. For example, in the case of signal transmission, the phase of the transmitted signal provided to the antenna 4 is controlled such that the radiated signal from the antenna 4 is combined using constructive and destructive interference to generate a converged transmitted signal that exhibits beamforming qualities, propagating more signal strength in a given direction. In the case of signal reception, the phase is controlled such that more signal energy is received when the signal arrives at the antenna 4 from a specific direction. In some embodiments, the antenna 4 includes one or more arrays of antenna elements to enhance beamforming.

[0066] Baseband system 1 is coupled to user interface 7 to facilitate the processing of various user inputs and outputs (I / O), such as voice and data. Baseband system 1 provides a digital representation of the transmitted signal to transceiver 2, which processes it to generate an RF signal for transmission. Baseband system 1 also processes a digital representation of the received signal provided by transceiver 2. Figure 1 As shown, the baseband system 1 is coupled to the memory 6 to facilitate the operation of the electronic device 100.

[0067] The memory 6 can be used for a wide range of purposes, such as storing data and / or instructions to facilitate the operation of the mobile device 100 and / or providing storage of user information.

[0068] The power management system 5 provides a variety of power management functions for the electronic device 100.

[0069] Figure 1 The electronic device 100 illustrates an example of an RF communication system, which may include one or more power amplifiers implemented according to one or more features of this application.

[0070] Envelope tracking is a technique used to improve the power increase efficiency (PAE) of a power amplifier. It is achieved by effectively controlling the voltage level of the power amplifier's supply voltage, which is associated with the envelope of the RF signal amplified by the power amplifier. Therefore, when the envelope of the RF signal increases, the voltage supplied to the power amplifier can be increased. Similarly, when the envelope of the RF signal decreases, the voltage supplied to the power amplifier can be decreased to reduce power consumption, such as... Figure 2a and Figure 2b As shown. Among them, in Figure 2b The diagram illustrates different power tracking methods, including APT (Average Power Tracking), EPT (Enhanced Power Tracking), and ET.

[0071] In related technologies, to achieve power amplifier supply voltage adjustment based on the envelope of the power amplifier's input signal, a combination of linear and switching circuits is required. However, because the linear circuit consumes a high proportion of the overall power supply system's power, the power supply system efficiency is low, failing to achieve the goal of increasing the power amplifier's power.

[0072] To address the aforementioned problems, this application provides a voltage regulation circuit, including: a power amplification module, a first energy storage module, and a resonant voltage regulation module; the power input terminal of the power amplification module is used to connect to an external first input circuit, and the power amplification module is used to amplify an input first signal. The first signal includes a CP (Cyclic Prefix) signal and a valid data signal. A first terminal of the first energy storage module is electrically connected to the power input terminal of the power amplification module, and a second terminal of the first energy storage module is electrically connected to a ground terminal; the first energy storage module is used to provide a stable power supply voltage to the power amplification module. The resonant voltage regulation module is electrically connected to the power input terminal of the power amplification module; the resonant voltage regulation module is used to acquire a target voltage, and during the time that the power amplification module amplifies the CP signal in the currently input first signal, adjusts the voltage at the power input terminal of the power amplification module to the target voltage; wherein, the target voltage is a voltage related to the envelope of the valid data signal in the currently input first signal. In this embodiment, the resonant voltage regulation module can adjust the power amplifier module's supply voltage to the target voltage within the time it takes for the power amplifier module to amplify the CP signal of the first signal. This means adjusting the power amplifier's supply voltage based on the envelope of the effective data signal in the first signal. The power amplifier module can then amplify the effective data signal based on the target voltage, improving its power amplifier efficiency. Furthermore, in this embodiment, the resonant adjustment module can adjust the power amplifier module's supply voltage to the target voltage within the time it takes for the power amplifier module to amplify the CP signal of the first signal. Moreover, by setting a first energy storage module, a stable power supply can be provided to the power amplifier module during the amplification of the effective data signal of the first signal. This eliminates the need to adjust the magnitude of the first power supply's output signal, decoupling the power amplifier module's supply voltage regulation from the magnitude of the first power supply's output signal. This reduces the bandwidth requirement of the non-regulating module, thereby improving the power supply's steady-state efficiency. A detailed explanation follows.

[0073] See Figure 3 This is a schematic diagram of a voltage regulation circuit provided in an embodiment of this application. Figure 3 As shown, the voltage regulation includes: a power amplification module 31, a first energy storage module 32, and a resonant voltage regulation module 33.

[0074] The power input terminal 311 of the power amplifier module 31 is used to connect an external first power supply. The power amplifier module 31 is used to amplify the input first signal. The first signal includes a CP signal and a valid data signal.

[0075] The first terminal of the first energy storage module 32 is electrically connected to the power input terminal of the power amplifier module 31, and the second terminal of the first energy storage module 32 is electrically connected to the ground terminal. The first energy storage module 32 is used to provide a stable power supply voltage for the power amplifier module 31.

[0076] The resonant voltage regulation module 33 is electrically connected to the power input terminal of the power amplifier module 31. The resonant voltage regulation module 33 is used to acquire the target voltage and adjust the voltage at the power input terminal 311 of the power amplifier module 31 to the target voltage within a first time.

[0077] The target voltage is the voltage related to the envelope of the effective data signal of the currently input first signal; the first time is at least a portion of the time during which the power amplification module 31 amplifies the CP signal in the currently input first signal.

[0078] 5G NR is a global 5G standard based on a new air interface design using OFDM (Orthogonal Frequency Division Multiplexing), and it is also a very important foundation for the next generation of cellular mobile technology. The frame structure of 5G NR refers to the organization of radio signals, including key parameters such as subframes, slots, and symbols. A single frame is 10ms long and consists of 10 subframes, each 1ms long. The subframe is the basic unit of the frame structure, and each subframe lasts for 1ms. Subframes can be further divided into slots and symbols. A subframe contains multiple slots, the specific number depending on the subcarrier spacing. Each slot contains 14 or 12 symbols, the specific number depending on the cyclic prefix signal within the symbol. (See reference...) Figure 4 As shown. Among them, in Figure 4 middle, This represents the number of time slots in each subframe, which expands exponentially with the parameter set. Here, μ represents the number of parameters.

[0079] To avoid affecting data transmission within the symbol time, the power supply voltage of the power amplifier module 31 needs to be adjusted within the CP signal time. If the CP signal time is short and the target voltage to be adjusted is large, the voltage adjustment speed will be high. If the external input power supply of the power amplifier module uses a high voltage adjustment speed to adjust the supply voltage, it will result in low efficiency in steady state. For example, Table 1 below illustrates the CP signal time and symbol time at subcarrier intervals of 15kHz, 30kHz, 60kHz, 120kHz, and 240kHz. Taking SCS = 30kHz as an example, the CP time corresponds to 2.34μs (microseconds). Assuming the target voltage to be adjusted is 10V, the voltage adjustment speed needs to be greater than 4.27V / μs. If the external input power supply of the power amplifier module uses a high voltage adjustment speed to adjust the supply voltage, such as... Figure 5 As shown, this will lead to lower efficiency in steady state.

[0080] Table 1

[0081]

[0082] It should be understood that Table 1 above is merely an illustration and is not intended to limit the embodiments of this application.

[0083] In this embodiment, the voltage regulation circuit includes a power amplifier module 31, a first energy storage module 32, and a resonant voltage regulation module 33. The power amplifier module 31 amplifies the input first signal. The first signal includes a CP signal and a valid data signal. In this embodiment, the valid data signal is the symbol data in the data frame. The power input terminal of the power amplifier module 31 is connected to an external first power supply, allowing an electrical signal to be input to the power input terminal of the power amplifier module 31 to power it.

[0084] The first terminal of the first energy storage module 32 is electrically connected to the power input terminal of the power amplifier module 31, and the second terminal of the first energy storage module 32 is used to connect to the ground terminal. In this way, the first energy storage module 32 can stabilize the power supply voltage at the power input terminal of the power amplifier module 32 by storing and releasing energy, thereby ensuring the stability and continuity of the power amplifier module 32 in amplifying and processing the first signal.

[0085] The resonant voltage regulation module 33 is electrically connected to the power input terminal of the power amplifier module 31. In this way, when adjusting the input voltage of the power amplifier module 31 based on the envelope of the valid data signal in the first input signal, the resonant voltage regulation module 33 can resonate within a first time period. During this resonance, the voltage at the power input terminal of the power amplifier module 31 can be adjusted to the target voltage. This target voltage is related to the envelope of the valid data signal in the currently input first signal of the power amplifier module 31. The first time period refers to at least a portion of the time during which the power amplifier module 31 amplifies the CP signal in the currently input first signal. In this embodiment, during the amplification of the CP signal in the currently input first signal by the power amplification module 31, the voltage at the power input terminal of the power amplification module 31 can be adjusted to the target voltage by the resonant voltage regulation module 33. This allows the power amplification module 31 to amplify the effective data signal in the currently input first signal when the target voltage is the supply voltage, ensuring that the supply voltage of the power amplification module 31 matches the envelope of the effective data signal in the currently input first signal, thereby improving the power amplification efficiency of the power amplification module 31. Furthermore, in this embodiment, there is no need to adjust the magnitude of the output electrical signal of the first power supply, i.e., there is no need to adjust the voltage signal output by the external power supply to the power amplification module 31, thereby improving the steady-state efficiency of the power supply.

[0086] As one possible implementation, such as Figure 6 As shown, the above-mentioned resonant voltage regulation module 33 includes a resonant submodule 331 and a switch submodule 332.

[0087] The resonator module 331 is electrically connected to the first terminal and the ground terminal of the switch submodule 332, and the second terminal of the switch submodule 332 is electrically connected to the power input terminal of the power amplifier module 31.

[0088] In this embodiment, since the first signal includes a CP signal and a valid data signal, the adjustment of the power supply voltage of the power amplifier module 31 can only be performed during the CP signal time. That is, the resonant voltage regulation module 33 can only adjust the voltage at the power input terminal of the power amplifier module 31 during the first time period, and does not adjust it at other times. Based on this, the resonant voltage regulation module 33 includes a resonant submodule 331 and a switch submodule 332. The first terminal of the switch submodule 332 is electrically connected to the resonant submodule 331, and the second terminal of the switch submodule 332 is electrically connected to the power input terminal of the power amplifier module 31. Thus, the adjustment of the voltage at the power input terminal of the power amplifier module 31 can be controlled by controlling the on / off state of the switch submodule 332. In other words, when it is necessary to adjust the voltage at the power input terminal of the power amplifier module 31, i.e., in the first instant, the switch submodule 332 is turned on. At this time, the branch between the resonant submodule 331 and the power input terminal of the power amplifier module 31 is turned on, the resonant submodule 331 can generate resonance, and during the resonance process, the voltage at the power input terminal of the power amplifier module 31 is adjusted to adjust it to the target voltage.

[0089] During the process when the power amplifier module 31 needs to amplify the valid data signal in the first signal, the switch submodule 332 is disconnected. At this time, the branch between the resonant submodule 331 and the power amplifier module 31 is disconnected, and the resonant submodule 331 does not adjust the voltage at the power amplifier module 31.

[0090] In the initial time frame, the resonant module 331 needs to release its stored energy to generate resonance. According to the principle of energy conservation, the energy stored in the resonant module 331 will eventually be consumed during the process of resonating and adjusting the voltage at the power input terminal of the power amplifier module 31. Therefore, the resonant module 331 also needs to store energy. In some embodiments, such as... Figure 7 The voltage regulation circuit further includes a first voltage conversion module 34. The output terminal of the first voltage conversion module 34 is electrically connected to the resonant module 331. The first voltage conversion module 34 is used to convert the first power signal received at the input terminal into a second power signal within a second time period, and transmit the second power signal to the resonant module 331, so that the resonant module 331 adjusts the power supply voltage of the power amplifier module 31 to the target voltage within a first time period.

[0091] The second time is earlier than the first time. The second time is at least a portion of the time during which the power amplifier module 31 amplifies the valid data signal in the previously input first signal. The second power supply signal is related to the target voltage.

[0092] In this embodiment, during the amplification process of the power amplifier module 31 on the valid data signal in the first signal, the resonant module 331 stops resonating and no longer adjusts the voltage at the power input terminal of the power amplifier module 31. During this process, energy storage can be performed on the resonant module 331. Since the resonant module 331 needs to adjust the voltage at its power input terminal within the first time period—that is, during the amplification process of the CP signal in the currently input first signal—it needs to adjust the power supply voltage of the power amplifier module 31 to the target voltage before the power amplifier module 31 amplifies the valid data signal in the currently input first signal. Therefore, the resonant module 331 needs to complete its energy storage within a second time period before the first time period. In other words, during the amplification process of the power amplifier module 31 on the valid data signal of the previously input first signal, energy storage is required on the resonant module 331 so that the power supply voltage of the power amplifier module 31 can be adjusted to the target voltage within the first time period. Therefore, the voltage regulation circuit further includes a first voltage conversion module 34. The first voltage conversion module 34 can convert the first power signal obtained from its input terminal into a second power signal and transmit the second power signal to the resonator module 331 for energy storage.

[0093] In some embodiments, such as Figure 8 As shown, the resonator module 331 includes a first capacitor 3311 and an inductor 3312.

[0094] The first terminal of the first capacitor 3311 is electrically connected to the first terminal of the inductor 3312 and the output terminal of the first voltage conversion module 34. The second terminal of the first capacitor 3311 is grounded, and the second terminal of the inductor 3312 is electrically connected to the first terminal of the switch submodule 332.

[0095] That is, the resonant module 331 includes a first capacitor 3311 and an inductor 3312. Resonance is generated through the first capacitor 3311 and the inductor 3312 to adjust the supply voltage of the power amplifier module 31 to the target voltage. The first capacitor 3311 and the inductor 3312 in the resonant module 331 are connected in series. At this time, the first terminal of the first capacitor 3311 is electrically connected to the first terminal of the inductor 3312 and the output terminal of the first voltage conversion module 34, the second terminal of the first capacitor 3311 is grounded, and the second terminal of the inductor 3312 is electrically connected to the power input terminal of the power amplifier module 21. Thus, at the second time, the switch submodule 332 is turned off, and the first voltage conversion module 34 can output a second power signal to store energy in the first capacitor 3311. When the first capacitor 3311 has completed energy storage, the voltage at the first capacitor 3311 is the same as the magnitude of the second power signal. At the first moment, the first voltage conversion module 34 stops outputting the second power signal, and the switch submodule 333 is turned on. The first capacitor 3311 and the inductor 3312 form a resonant circuit, which can adjust the power supply voltage at the power input terminal of the power amplifier module 31 to the target voltage.

[0096] In some embodiments, reference Figure 8 As shown, the first energy storage module 32 includes a second capacitor 321. In this way, the first capacitor 3311, the inductor 3312 and the second capacitor 321 in the resonant module 331 can form a CLC resonant circuit, which can more accurately adjust the power supply voltage output from the power input terminal of the power amplifier module 31.

[0097] It should be understood that the second power supply signal is determined based on the target voltage. Since the target voltage is related to the envelope of the effective data signal of the first signal currently input to the power amplifier module 31, the corresponding target voltage will differ depending on the envelope of the effective data signal of the first signal input to the power amplifier module 31 at different times. Therefore, in order to adjust the supply voltage of the power amplifier module 31 to the corresponding target voltage within the first time, the energy stored in the resonant module 331 should be related to the target voltage. This allows the supply voltage of the power amplifier module 31 to be adjusted to the corresponding target voltage during the resonance process of the resonant module 331. Therefore, the first voltage conversion module 34 can convert the first power supply signal into a second power supply signal. When the resonant module 331 stores energy through the second power supply signal, the stored energy is related to the target voltage. The magnitude of the second power supply signal can be calculated based on the target voltage.

[0098] In some embodiments, the second power signal can be calculated using the following formula:

[0099] Among them, U pa_beginIt is the voltage at the power input terminal of the power amplifier module 31 before adjustment; U pa_en It is the target voltage; C r This is the capacitance value of the first capacitor, 3311; C pa This is the capacitance value of the second capacitor, 321; U Cr_begin It is the magnitude of the second power supply signal.

[0100] It should be noted that, in this embodiment, since the capacitance value of the second capacitor 321 may decay during actual implementation, the current capacitance value of the second capacitor 321 can be calculated by measuring the voltage before adjustment, the voltage after adjustment, and the initial value of the capacitance value of the first capacitor 3311 at the power input terminal of the power amplifier module 31. This means that the capacitance value of the second capacitor 321 can be calibrated. The magnitude of the second power signal can be calculated using the calibrated capacitance value of the second capacitor 321 and the above formula, thereby improving the accuracy of the calculation of the second power signal.

[0101] In some embodiments, adjusting the voltage at the power input terminal of the power amplifier module 31, which is the supply voltage, to the target voltage within a first time period can be achieved within half a resonant cycle of the resonant module 331.

[0102] It should be noted that in the resonator module 331, the time required to charge the voltage of the first capacitor 3311 to the level of the second power supply signal is related to the resonance parameters. That is, it is related to the capacitance value of the first capacitor 3311 and the inductance value of the inductor 3312. By setting the corresponding parameters of the first capacitor 3311 and the inductor 3312, the charging time of the first capacitor 3311 can be controlled, thereby enabling the charging of the first capacitor 3311 to be completed within the second time.

[0103] The aforementioned first voltage conversion module 34 can convert the first power signal acquired at its input terminal into a second power signal. In some embodiments, the input terminal of the first voltage conversion module 34 can be externally connected to a second power source. That is, as shown... Figure 9a As shown, the input terminal of the first voltage conversion module 34 is used to connect to an external second power supply. Specifically, the first voltage conversion module 34 is used to convert the first power signal output by the second power supply into a second power signal.

[0104] In this embodiment, the input terminal of the first voltage conversion module 34 can be connected to a second power supply. In this way, the first voltage conversion module 34 can convert the first power signal output by the second power supply into the second power signal required by the resonant module 331 through the input terminal, and transmit the second power signal to the resonant module 331 to store energy for the resonant module 331.

[0105] Alternatively, in some embodiments, since the first power supply can provide an electrical signal to the power input terminal of the power amplifier module 31, the first voltage conversion module 34 can also convert the electrical signal provided by the first power supply at the power input terminal of the power amplifier module 31 into a second power signal. That is, as follows: Figure 9b As shown, the input terminal of the first voltage conversion module 34 is electrically connected to the power input terminal of the power amplifier module 31. Specifically, the first voltage conversion module 34 is used to take the electrical signal at the power input terminal of the power amplifier module 31 as a first power signal and convert the first power signal into a second power signal.

[0106] In other words, the input terminal of the first voltage conversion module 34 is electrically connected to the power input terminal of the power amplifier module 31. In this way, the input terminal of the first voltage conversion module 34 can receive the electrical signal provided by the first power supply, use the electrical signal provided by the first power supply as the first power signal, convert the first power signal into the second power signal, and then transmit the second power signal to the resonator module 331 to store energy for the resonator module 331.

[0107] In the voltage regulation circuit, the switch submodule 332 needs to be turned on in the first time and turned off in the second time. In the first time, the first voltage conversion module 34 does not output a second power signal, but in the second time, the power conversion module 34 needs to output a second power signal. To reduce the complexity of the voltage regulation circuit, the switching submodule 332 can be controlled to turn on and off via a host computer, and the output of the first voltage conversion module 34 can also be controlled via the host computer. That is, the control terminal of the first voltage conversion module 34 is connected to the first output terminal of the host computer, and the control terminal of the switch submodule 332 is connected to the second output terminal of the host computer.

[0108] The first voltage conversion module 34 is used to receive the first control signal sent by the host computer in the second time period, and convert the first power signal received at the input terminal into a second power signal based on the first control signal, and transmit the second power signal to the resonator module 331 to store energy for the resonator module 331; and to receive the second control signal sent by the host computer in the first time period, and stop converting the first power signal received at the input terminal into a second power signal based on the second control signal.

[0109] The switch submodule 332 is used to receive a third control signal sent by the host computer in the second time period, and disconnect the branch between the resonant submodule 331 and the power amplifier module 31 based on the third control signal; and to receive a fourth control signal sent by the host computer in the first time period, and connect the branch between the resonant submodule 331 and the power amplifier module 31 based on the fourth control signal.

[0110] Specifically, the control terminal of the first voltage conversion module 34 is connected to the first output terminal of the host computer, and the control terminal of the switch submodule 332 is connected to the second output terminal of the host computer. The host computer can control whether the first voltage conversion module 34 works and control the switching submodule 332 to turn on and off through the output control signal. The host computer can obtain the first signal received at the input terminal of the power amplifier module 31. In this way, the host computer can determine the output control signal based on the first signal. Taking the currently input first signal as an example, during the processing of the valid data signal of the previously input first signal, it is necessary to store energy in the resonant module 331. That is, in the second time interval, the first voltage conversion module 34 needs to output a second power signal, and the switch submodule 332 needs to disconnect the branch between the resonant module 331 and the power amplifier module 31's power input terminal. At this time, the host computer can output a first control signal through the first output terminal and a third control signal through the second output terminal. The control terminal of the first voltage conversion module 34 receives the first control signal, and the control terminal of the switch submodule 332 receives the third control signal. The first voltage conversion module 34, based on the received first control signal, converts the first power signal received at its input terminal into a second power signal and transmits the second power signal to the resonant module 331 to store energy for the resonant module 331. The control terminal of the switch submodule 332 receives a third control signal and disconnects the branch between the power input terminal of the resonant module 331 and the power amplifier module 31 based on the third control signal. During the CP signal time of the currently input first signal, the power supply voltage of the power amplifier module 31 needs to be adjusted. That is, the power supply voltage of the power amplifier module 31 needs to be adjusted within the first time period. The host computer can output a second control signal through the first output terminal and a fourth control signal through the second output terminal. The control terminal of the first voltage conversion module 34 receives the second control signal, and the control terminal of the switch submodule 332 receives the fourth control signal. Based on the received second control signal, the first voltage conversion module 34 stops converting the first power signal received at its input terminal into a second power signal and stops transmitting the second power signal to the resonant module 331, thus stopping energy storage for the resonant module 331. The control terminal of the switching submodule 332 receives the fourth control signal and, based on the fourth control signal, turns on the branch between the resonant submodule 331 and the power amplifier module 31's power input terminal. This allows the resonant submodule 331 to resonate, adjusting the voltage at the power amplifier module 31's power input terminal to the target voltage during the resonance process.

[0111] In some embodiments, the first voltage conversion module 34 described above is a DC-DC converter, as referenced. Figure 11a and Figure 11b As shown.

[0112] In some embodiments, such as Figure 10a and Figure 10b As shown, the voltage regulation circuit further includes at least one second voltage conversion module 35. The input terminal of the at least one second voltage conversion module 35 is used to connect to the first power supply, and the output terminal of the at least one second voltage conversion module 35 is electrically connected to the power input terminal of the power amplifier module 31.

[0113] Since the electrical signal provided by the first power source may not be the supply voltage required by the power amplifier module 31, a second voltage conversion module 35 is needed to convert the electrical signal provided by the first power source into the supply voltage required by the power amplifier module 31 before transmitting it to the power input terminal of the power amplifier module 31. In some embodiments, the power amplifier module 31 can be supplied with a supply voltage by multiple first power sources. In this case, a second voltage conversion module 35 needs to be set for each first power source so that the second conversion module 35 can convert the electrical signal of its corresponding first power source into the required power signal and transmit it to the power amplifier module 31.

[0114] To more clearly describe the operation of the voltage regulation circuit, the following description uses the first voltage conversion module 34 as an example. Figure 11a The connection structure shown is used as an example for illustration. Figure 12 The diagram shows the signal schematic of the voltage regulation circuit in operation.

[0115] The power amplifier module 31 needs to amplify the first signal. The first signal includes a valid data signal and a CP signal. In this example, the valid data signal is the symbol signal, denoted by symbol. The time period t0-t1 is the start time of symbol 1, and the initial value of the voltage at the first capacitor 3311 at time t0 is determined by the previous voltage regulation process. In this example, the voltage at the first capacitor 3311 is represented by U. cr This indicates that the power supply voltage of the power amplifier module 31 is represented by U. pa This indicates that during the time period t0-t1, the first voltage conversion module 34 is not working. During the time period t1-t2, the first voltage conversion module 34 starts working, at which time it can convert the received first power signal into a second power signal. That is, the first voltage conversion module 34 can calculate the magnitude of the second power signal based on the target voltage of the power amplification module 31, convert the received first power signal into a second power signal, and transmit the second power signal to the first capacitor 3311 to charge the first capacitor 3311. When charging is completed at time t2, the voltage U at the first capacitor 3311 is... cr It has the same magnitude as the second power supply signal.

[0116] After the first capacitor 3311 has finished charging, the first voltage conversion module 34 can stop working, that is, stop converting the first power signal into the second power signal to charge the first capacitor 3311. In other words, the first voltage conversion module 34 stops working during the time period t2-t3. The aforementioned time period t0-t3 is the time during which the power amplification module 31 amplifies the valid data signal from the previously input first signal; that is, the t0-t3 time period is the second time period described in the above embodiment.

[0117] The time period t3-t4 marks the start of the new first signal. Specifically, t3-t4 is the start time of the CP2 signal. At this point, the switching submodule 332 is turned on, connecting the branch between the first capacitor 3311, inductor 3312, and the power input terminal of the power amplifier module 31. At this time, the first capacitor 3311, inductor 3312, and second capacitor 321 form a CLC series resonant circuit. During resonance, the voltage at the power input terminal of the power amplifier module 31 is adjusted, i.e., the supply voltage of the power amplifier module 31 is adjusted to the target voltage. The CLC series resonant circuit can adjust the supply voltage of the power amplifier module 31 to the target voltage within half a resonance cycle.

[0118] During the time interval t4-t5, since the power supply voltage of the power amplifier module 31 is the target voltage, no further adjustment is needed. At this time, the switching submodule 332 can be disconnected, thus breaking the branch between the first capacitor 3311, inductor 3312, and the power input terminal of the power amplifier module 31. Thus, at time t5, the CP signal ends, and symbol 2 begins. At this point, the power amplifier module 31 can amplify symbol 2 using the target voltage.

[0119] In the above process, the time t3-t5 is the time during which the power amplification module 31 amplifies the CP signal in the currently input first signal. In other words, the time period t3-t5 is the first time in the above embodiment.

[0120] During the amplification process of symbol 2 by power amplifier module 31, the first capacitor 3311 can be recharged. The voltage of the first capacitor 3311 after charging is related to the target voltage of symbol 3. The specific process can be referred to the above process and will not be repeated here.

[0121] Through the above process, the first capacitor 3311 can be charged during the symbol time of the first signal, and the supply voltage of the power amplifier module 31 can be adjusted during the CP signal time of the first signal. This allows for continuous adjustment of the target voltage based on the envelope of the effective data signal of the first signal input to the power amplifier module 31, thereby improving the power amplifier efficiency of the power amplifier module 31. Furthermore, by adding the resonant voltage regulation module 33, the supply voltage of the power amplifier module 31 can be adjusted without adjusting the voltage of the external first power supply, thus improving the steady-state efficiency of the first power supply.

[0122] In some embodiments, the first voltage conversion module 34 described above can be a buck-boost circuit. Of course, the first voltage conversion module 34 can also be other voltage conversion circuits, such as a buck circuit, a boost circuit, a flyback transformer, a reverse polarity buck-boost circuit, or other circuits capable of voltage conversion. This application embodiment does not limit this.

[0123] In some embodiments, the switch submodule 332 described above may be a switch capable of bidirectional blocking, a switch of the type of metal-oxide-semiconductor field-effect transistor (MOSFET), a switch of the type of insulated-gate bipolar transistor (IGBT), or other types of switches, and this application does not limit this.

[0124] Since the second capacitor 321 is used to provide a stable supply voltage for the power amplifier module 31, in some embodiments, the second capacitor 321 can also be referred to as the capacitor of the power amplifier module 31. For example, when the power amplifier module 31 is represented by PA, the second capacitor 321 can be represented as the capacitor of PA. Figure 13 The term is represented by Cpa. When adjusting the power supply voltage of the power amplifier module 31, the voltage of the second capacitor 321 can be adjusted. Therefore, the above... Figure 10a and Figure 10b The equivalent circuit of the voltage regulation circuit shown can be Figure 12 The circuit shown. (Reference) Figure 13As shown, the aforementioned switch submodule 332 includes a first switch s1 and a second switch s2. The aforementioned inductor 3312 is denoted by Lr, the aforementioned first capacitor 3311 by Cr, and the aforementioned second capacitor 321 by Cpa. The first voltage conversion module 34 includes a third switch s3, a fourth switch s4, and an adjusting inductor L2. The first terminal of the third switch s3 is used to connect to an external second power supply V2. The second terminal of the third switch s3 is electrically connected to the first terminal of the fourth switch s4. The second terminal of the fourth switch s4 is electrically connected to the first terminal of the first capacitor Cr. The first terminal of the adjusting inductor L2 is electrically connected to the second terminals of both the third switch s3 and the fourth switch s4. The second terminals of the first capacitor Cr and the adjusting inductor L2 are grounded. The first terminal of the inductor Lr is electrically connected to the first terminal of the first capacitor Cr. The second terminal of the inductor Lr is electrically connected to the first terminal of the first switch s1. The second terminal of the first switch s1 is electrically connected to the first terminal of the second switch s2. The second terminal of the second switch s2 is electrically connected to the first terminal of the second capacitor Cpa. The second terminal of the second capacitor Cpa is grounded. Thus, the voltage across the second capacitor Cpa is the voltage at the power input terminal of the power amplifier module 31. One of the first and second terminals of the first switch s1, second switch s2, third switch s3, and fourth switch s4 is the source, and the other is the drain. The control terminals of the first switch s1, second switch s2, third switch s3, and fourth switch s4 are all electrically connected to the host computer, which controls the on and off states of these switches. The voltage at the first capacitor Cr can be adjusted by controlling the on and off states of the third switch s3 and fourth switch s4. The on-times of the third switch s3 and fourth switch s4 are different; when the third switch s3 is on, the fourth switch s4 is off, and vice versa. When it is necessary to increase the voltage at the first capacitor Cr, the duty cycle of the third switch s3 needs to be set to a value greater than 0.5, at which point the duty cycle of the fourth switch s4 is less than 0.5. When it is necessary to reduce the voltage at the first capacitor Cr, the duty cycle of the third switch S3 needs to be set to a value less than 0.5, while the duty cycle of the fourth switch S4 is greater than 0.5. Thus, by controlling the on / off state of the third and fourth switches S3 and S4, the charging voltage of the first capacitor Cr can be adjusted. The host computer can control the on / off state of the first and second switches S1 and S2. When it is necessary to charge the first capacitor Cr, the first and second switches S1 and S2 can be turned off, and the third and fourth switches S3 and S4 can be turned on / off, thus converting the first power signal output from the second power supply into a second power signal to charge the first capacitor Cr. In other words, to ensure that the next voltage adjustment can reach the target voltage, the above process can be used to adjust the pre-charge voltage of the first capacitor Cr, making the adjusted voltage of the first capacitor Cr the same as the magnitude of the second power signal.

[0125] When the first capacitor Cr needs to be discharged, the first switch s1 and the second switch s2 can be turned on, and the third switch s3 and the fourth switch s4 can be turned off. In this way, the first capacitor Cr, the inductor Lr and the second capacitor Cpa form a CLC series resonance, and the voltage at the second capacitor Cpa is adjusted to adjust it to the target voltage.

[0126] refer to Figure 14 The illustration shown is for an embodiment of this application. Figure 14 The diagram shows a simulation of the voltage regulation circuit. Figure 14 The simulation diagram includes the capacitance of the first capacitor Cr and the current of Lr, the simulation diagram of the voltage of the second capacitor Cpa, and the simulation diagram of the adjustment of the voltage of Cr when the first voltage conversion module 34 precharges the first capacitor Cr.

[0127] The first voltage conversion module 34 can handle only a small portion of the power; if the voltage is within a certain range, it can stop operating, reducing design complexity. Furthermore, when the voltage at the second capacitor Cpa is adjusted to the target voltage, the current resonance can be reduced to 0 amps, resulting in a small overshoot and improved circuit reliability.

[0128] Corresponding to the above embodiments, this application also provides a chip including the voltage regulation circuit described in the above embodiments.

[0129] Corresponding to the above embodiments, this application also provides an electronic device, including the voltage regulation circuit or chip described in the above embodiments.

[0130] Those skilled in the art will clearly understand that the techniques in the embodiments of the present invention can be implemented using software plus necessary general-purpose hardware platforms. Based on this understanding, the technical solutions in the embodiments of the present invention, or the parts that contribute to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments or certain parts of the embodiments of the present invention.

[0131] The same or similar parts between the various embodiments in this specification can be referred to mutually. In particular, the device embodiments and terminal embodiments are basically similar to the method embodiments, so the description is relatively simple, and the relevant parts can be referred to the description in the method embodiments.

Claims

1. A voltage regulation circuit, characterized in that, include: A power amplifier module, wherein the power input terminal of the power amplifier module is used to connect to an external first power supply; the power amplifier module is used to amplify the input first signal; the first signal includes a cyclic prefix (CP) signal and a valid data signal; The first energy storage module has a first terminal electrically connected to the power input terminal of the power amplifier module, and a second terminal electrically connected to the ground terminal; the first energy storage module is used to provide a stable power supply voltage for the power amplifier module. A resonant voltage regulation module is electrically connected to the power input terminal of the power amplifier module. The resonant voltage regulation module is used to acquire a target voltage and adjust the voltage at the power input terminal of the power amplifier module to the target voltage within a first time period. The target voltage is a voltage related to the envelope of the effective data signal of the currently input first signal. The first time period is at least a portion of the time during which the power amplifier module amplifies the CP signal in the currently input first signal.

2. The circuit according to claim 1, characterized in that, The resonant voltage regulation module includes a resonant sub-module and a switching sub-module; The resonator module is electrically connected to the first terminal and the ground terminal of the switch submodule, and the second terminal of the switch submodule is electrically connected to the power input terminal of the power amplifier module.

3. The circuit according to claim 2, characterized in that, It also includes a first voltage conversion module; The output terminal of the first voltage conversion module is electrically connected to the resonant oscillator module. The first voltage conversion module is used to convert the first power signal received at the input terminal into a second power signal within a second time period, and transmit the second power signal to the resonant oscillator module to store energy for the resonant oscillator module, so that the resonant oscillator module adjusts the power supply voltage of the power amplifier module to the target voltage within the first time period. The second time period is earlier than the first time period, and the second time period is at least a portion of the time during which the power amplifier module amplifies the effective data signal in the previously input first signal. The second power signal is related to the target voltage.

4. The circuit according to claim 3, characterized in that, The input terminal of the first voltage conversion module is used to connect to an external second power supply; The first voltage conversion module is specifically used to convert the first power signal output by the second power supply into the second power signal.

5. The circuit according to claim 3, characterized in that, The input terminal of the first voltage conversion module is electrically connected to the power input terminal of the power amplifier module; The first voltage conversion module is specifically used to take the electrical signal at the power input terminal of the power amplifier module as the first power signal and convert the first power signal into the second power signal.

6. The circuit according to any one of claims 3-5, characterized in that, The control terminal of the first voltage conversion module is used to connect to the first output terminal of the host computer, and the control terminal of the switch submodule is used to connect to the second output terminal of the host computer. The first voltage conversion module is configured to receive a first control signal sent by the host computer within a second time period, and convert the first power signal received at the input terminal into a second power signal based on the first control signal, and transmit the second power signal to the resonator module to store energy for the resonator module; and receive a second control signal sent by the host computer within the first time period, and stop converting the first power signal received at the input terminal into a second power signal based on the second control signal. The switching submodule is configured to receive a third control signal sent by the host computer during the second time period, and disconnect the branch between the resonant submodule and the power input terminal of the power amplifier module based on the third control signal; and receive a fourth control signal sent by the host computer during the first time period, and connect the branch between the resonant submodule and the power input terminal of the power amplifier module based on the fourth control signal.

7. The circuit according to any one of claims 3-6, characterized in that, The resonator module includes a first capacitor and an inductor; The first terminal of the first capacitor is electrically connected to the first terminal of the inductor and the output terminal of the first voltage conversion module, the second terminal of the first capacitor is grounded, and the second terminal of the inductor is electrically connected to the first terminal of the switch submodule.

8. The circuit according to any one of claims 1-7, characterized in that, The first energy storage module includes a second capacitor.

9. A chip, characterized in that, Includes the voltage regulation circuit according to any one of claims 1-8.

10. An electronic device, characterized in that, Includes the voltage regulation circuit according to any one of claims 1-8 or the chip according to claim 9.

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