Power supply circuit, power supply chip and terminal equipment

Abstract

The utility model discloses a power supply circuit, a power supply chip and terminal equipment, and relates to the technical field of power supply, and the power supply circuit comprises a battery voltage detection module which is used for detecting the voltage of a battery; the control module is used for obtaining the required voltage of the load and sending out a boosting signal when the battery voltage is smaller than the required voltage; the voltage regulation module is used for boosting the battery voltage according to the boosting signal; and the power tracking module is used for performing power tracking on the battery voltage passing through the voltage regulation module so as to output power supply voltage to a load, and the power supply voltage is equal to the required voltage. Based on the scheme of the invention, when the voltage of the battery powered by the power tracking power supply is smaller than the required voltage of the load, the voltage of the battery is boosted through the voltage regulation module, and the voltage of the battery passing through the voltage regulation module is subjected to power tracking through the power tracking module; therefore, the load can obtain the required power supply voltage to maintain normal work, and the user experience is improved.

Description

Technical Field

[0001] The present application relates to the field of power supply technology, and in particular, to a power supply circuit, a power supply chip and a terminal device. Background Art

[0002] With the continuous development of science and technology, in order to improve the working efficiency of the load, the average power tracking (APT) power supply is often used to power the load, that is, the battery voltage of the battery is adjusted step by step according to the power required by the load to reduce the power consumption of the load and extend the working time of the battery. For example, the radio frequency system in the mobile phone is often powered by the APT power supply.

[0003] However, when the battery voltage is lower than the required voltage of the load, but the load has not completely stopped working, using APT power supply will often cause the load to enter an abnormal state. For example, if the load is a RF chip in a mobile phone, when the battery voltage is lower than the required voltage of the RF chip, but the RF chip has not completely stopped working, using APT power supply will affect the signal transmission and reception process of the RF chip, causing the mobile phone to be unable to make calls normally, affecting the user experience.

[0004] Therefore, a new solution is urgently needed to solve the above problems. Utility Model Content

[0005] The present application provides a power supply circuit, a power supply chip and a terminal device. When the battery voltage powered by an average power tracking power supply is lower than the required voltage of a load, the battery voltage is boosted by a voltage regulation module, and the power tracking module is used to track the battery voltage passing through the voltage regulation module, so that the load can obtain the required power supply voltage to maintain normal operation, thereby improving the user experience.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] In a first aspect, a power supply circuit is provided, including a battery voltage detection module, a control module, a voltage regulation module and a power tracking module. The battery voltage detection module is connected to the battery and is used to detect the battery voltage. The control module is connected to the battery voltage detection module and is used to obtain the required voltage of the load, and when the battery voltage is less than the required voltage, a boost signal is issued. When the battery voltage is not less than the required voltage, a bypass signal or a step-down signal is issued. The voltage regulation module is respectively connected to the control module and the battery, and is used to boost the battery voltage according to the boost signal. The battery voltage is bypassed according to the bypass signal, or the battery voltage is stepped down according to the step-down signal. The power tracking module is respectively connected to the voltage regulation module and the control module, and is used to perform power tracking on the battery voltage passing through the voltage regulation module, so as to provide an output power supply voltage to the load, and the power supply voltage is equal to the required voltage.

[0008] In the embodiment of the present application, when the battery voltage is not less than the required voltage of the load, the battery voltage can be bypassed or stepped down by the voltage regulating module according to the actual situation, so as to maintain or reduce the battery voltage. When the battery voltage is less than the required voltage of the load, the voltage regulating module boosts the battery voltage, and the power tracking module performs average power tracking on the boosted voltage, so that the battery voltage can meet the required voltage of the load, maintain the normal operation of the load, and improve the user experience.

[0009] It should be noted that, according to actual needs, the power tracking module may include any one of an average power tracking unit and an envelope tracking unit.

[0010] It should be noted that, according to actual needs, the average power tracking unit may include any one of a buck-type average power tracking unit, a boost-type average power tracking unit or a buck-boost-type average power tracking unit.

[0011] In combination with the first aspect, in certain implementations of the first aspect, the voltage regulation module includes a first switch, a boost unit, and a bypass unit. The first switch is connected to the control module and the battery, respectively, and is used to conduct the path between the battery and the boost unit when receiving a boost signal, or to conduct the path between the battery and the bypass unit when receiving a bypass signal. The boost unit is connected to the first switch and the power tracking module, respectively, and is used to boost the battery voltage. The bypass unit is connected to the first switch and the power tracking module, respectively, and is used to bypass the battery voltage.

[0012] In this implementation, the first switch is used to conduct the path between the control battery and the boost unit, or conduct the path between the battery and the bypass unit, so as to boost or bypass the battery voltage to meet the required power of the load.

[0013] In combination with the first aspect, in certain implementations of the first aspect, the voltage regulation module includes a first switch, a boost unit, and a buck unit. The first switch is connected to the control module and the battery, respectively, and is used to conduct the path between the battery and the boost unit when receiving a boost signal, or to conduct the path between the battery and the buck unit when receiving a buck signal. The boost unit is connected to the first switch and the power tracking module, respectively, and is used to boost the battery voltage. The buck unit is connected to the first switch and the power tracking module, respectively, and is used to buck the battery voltage.

[0014] In this implementation, the first switch is used to conduct the path between the control battery and the boost unit, or conduct the path between the battery and the buck unit, so as to boost or buck the battery voltage to meet the required power of the load.

[0015] In combination with the first aspect, in some implementations of the first aspect, the power supply circuit further includes a feedback detection module. The feedback detection module is connected to the output end of the voltage regulation module and the control module respectively, and is used to detect the feedback voltage of the voltage regulation module so that the control module can adjust the control signal according to the feedback voltage.

[0016] In this implementation, the feedback detection module is used to detect the feedback voltage of the voltage regulation module, so that the control module can adjust the control signal of the voltage regulation module according to the feedback voltage, obtain the power supply voltage, and ensure the working condition of the load.

[0017] In combination with the first aspect, in some implementations of the first aspect, the power supply circuit further includes a radio frequency chip. The radio frequency chip is respectively connected to the load, the power tracking module, and the control module, and is used to obtain the required power of the load and transmit it to the control module, and control the power tracking module to output the supply voltage according to the control signal of the control module.

[0018] In this implementation, the RF chip is used to receive signals to obtain the required power of the load and transmit it to the control module, and to control the power tracking module to output a supply voltage according to the control signal of the control module. The supply voltage is equal to the required voltage, so that the load can work normally.

[0019] In combination with the first aspect, in some implementations of the first aspect, the load includes a first power supply terminal, a second power supply terminal, and a third power supply terminal. The output terminal of the voltage regulation module is connected to the first power supply terminal of the load, and is used to output a first voltage. The output terminal of the power tracking module is respectively connected to the second power supply terminal and the third power supply terminal of the load, and is used to output a second voltage or a third voltage.

[0020] In this implementation, the first power supply end of the load can obtain the output voltage of the voltage regulation module, the second power supply end of the load can obtain the second voltage passed through the voltage regulation module and the power tracking module, and the third power supply end of the load can obtain the third voltage passed through the voltage regulation module and the power tracking module.

[0021] In combination with the first aspect, in some implementations of the first aspect, the load includes a first power supply terminal and a third power supply terminal. The output terminal of the power tracking module is respectively connected to the first power supply terminal, the second power supply terminal, and the third power supply terminal of the load, and is used to output the first voltage and the second voltage, or output the first voltage and the third voltage.

[0022] In this implementation, the first power supply end of the load can obtain a first voltage through the voltage regulation module and the power tracking module, the second power supply end of the load can obtain a second voltage through the voltage regulation module and the power tracking module, and the third power supply end of the load can obtain a third voltage through the voltage regulation module and the power tracking module.

[0023] In combination with the first aspect, in some implementations of the first aspect, the load includes a first power supply terminal and a third power supply terminal. The output terminal of the voltage regulation module is connected to the first power supply terminal of the load for outputting a first voltage. The output terminal of the power tracking module is connected to the third power supply terminal of the load for outputting a third voltage.

[0024] In this implementation, the first power supply terminal of the load can obtain the output voltage of the voltage regulation module, and the third power supply terminal of the load can obtain the third voltage passing through the voltage regulation module and the power tracking module.

[0025] In combination with the first aspect, in some implementations of the first aspect, the load includes a first power supply terminal and a second power supply terminal. The output terminal of the power tracking module is respectively connected to the first power supply terminal and the third power supply terminal of the load to output a first voltage and a third voltage.

[0026] In this implementation, the first power supply terminal of the load can obtain a first voltage through the voltage regulation module and the power tracking module, and the third power supply terminal of the load can obtain a third voltage through the voltage regulation module and the power tracking module.

[0027] In combination with the first aspect, in some implementations of the first aspect, the load includes a first power supply terminal and a second power supply terminal. The output terminal of the voltage regulation module is connected to the first power supply terminal of the load for outputting a first voltage. The output terminal of the power tracking module is connected to the second power supply terminal of the load for outputting a second voltage.

[0028] In this implementation, the first power supply end of the load can obtain the output voltage of the voltage regulation module, and the second power supply end of the load can obtain the second voltage passing through the voltage regulation module and the power tracking module.

[0029] In combination with the first aspect, in some implementations of the first aspect, an output end of the power tracking module is respectively connected to a first power supply end and a second power supply end of the load for outputting a first voltage and a second voltage.

[0030] In this implementation, the first power supply end of the load can obtain a first voltage through the voltage regulation module and the power tracking module, and the second power supply end of the load can obtain a second voltage through the voltage regulation module and the power tracking module.

[0031] In a second aspect, a power supply chip is provided, including a packaging structure and a power supply circuit packaged by the packaging structure.

[0032] In a third aspect, a terminal device is provided, including a battery and a power supply chip connected to the battery.

[0033] In an embodiment of the present application, when the battery voltage powered by a power tracking power supply is lower than the required voltage of the load, the battery voltage is boosted by a voltage regulation module, and the battery voltage passing through the voltage regulation module is power tracked by the power tracking module, so that the load can obtain the required power supply voltage to maintain normal operation, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of a scenario of a mobile communication system to which an embodiment of the present application is applicable;

[0035] Figure 2 A schematic diagram of the structure of a terminal device provided in an embodiment of the present application;

[0036] Figure 3 This is a schematic diagram of the structure of a power supply module provided in an embodiment of the present application;

[0037] Figure 4 A schematic diagram of the structure of a power supply circuit provided in an embodiment of the present application;

[0038] Figure 5 A schematic diagram of a flow chart of a power supply circuit provided in an embodiment of the present application;

[0039] Figure 6 A schematic diagram of the structure of a power supply circuit provided in yet another embodiment of the present application;

[0040] Figure 7 A schematic diagram of the structure of a power supply circuit provided in yet another embodiment of the present application;

[0041] Figure 8 A schematic diagram of the structure of a power supply circuit provided in yet another embodiment of the present application;

[0042] Fig. 9 A schematic diagram of the structure of a power supply circuit provided in yet another embodiment of the present application;

[0043] Fig.10 A schematic diagram of the structure of a power supply circuit provided in yet another embodiment of the present application;

[0044] Fig.11 A schematic diagram of the structure of a power supply circuit provided in yet another embodiment of the present application;

[0045] Fig.12 A schematic diagram of the structure of a power supply circuit provided in yet another embodiment of the present application;

[0046] Fig.13 A schematic diagram of the structure of a power supply circuit provided in yet another embodiment of the present application;

[0047] Fig.14 A schematic diagram of the structure of a power supply circuit provided in yet another embodiment of the present application;

[0048] Fig.15 This is a structural schematic diagram of a power supply circuit provided in yet another embodiment of the present application. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present application will be described clearly and in detail below in conjunction with the accompanying drawings. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in the text is only a description of the association relationship of the associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0050] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood to imply or suggest relative importance or implicitly indicate the number of technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of the features, and in the description of the embodiments of the present application, unless otherwise specified, "plurality" means two or more.

[0051] In order to facilitate the understanding of the embodiments of the present application, the relevant concepts involved in the embodiments of the present application are first briefly described.

[0052] 1. Average power tracking (APT), in the field of electronic technology, average power tracking technology is also called adaptive voltage regulation. Average power tracking technology refers to the technology of automatically adjusting the operating voltage of the power amplifier (PA) according to the pre-output power of the power amplifier (PA) and the parameters of the power amplifier itself. The main purpose of average power tracking technology is to optimize the power consumption of the RF power amplifier during operation, improve the working efficiency of the power amplifier, and extend the working time of the battery.

[0053] 2. Envelope tracking (ET). In the field of electronic technology, envelope tracking refers to the envelope change of the power amplifier (PA) according to the supply voltage of the power amplifier (PA) following the input signal. Specifically, envelope tracking refers to determining the supply voltage of the power amplifier according to the envelope amplitude of the input signal, and calculating the most appropriate voltage value for each power level in the envelope. A relatively higher voltage is given to a higher power level, and a relatively lower voltage is given to a lower power level. In this way, each power point has an optimal voltage, with less energy waste, less loss, and higher efficiency, thereby achieving a good power saving purpose. It is widely used in the field of RF power amplifiers. Compared with APT technology, ET technology wastes much less energy than APT. It can be understood that the envelope refers to a shape interwoven by many elliptical curves, and the appearance looks like a package.

[0054] 3. Buck circuit: In the field of electronic technology, a buck circuit refers to a step-down conversion circuit whose output voltage is lower than the input voltage of the buck circuit. It is generally used in the DC-DC voltage conversion process.

[0055] 4. Boost circuit: In the field of electronic technology, boost circuit refers to a boost conversion circuit whose output voltage is higher than the input voltage of the boost circuit. It is generally used in the DC-DC voltage conversion process.

[0056] 5. Global System for Mobile Communications (GSM). In the field of electronic technology, the Global System for Mobile Communications is a digital mobile communication standard developed by the European Telecommunications Standards Organization. Its air interface uses time division multiple access technology. Since it was put into commercial use in the mid-1990s, it has been adopted by more than 100 countries around the world. GSM standard equipment occupies more than 80% of the current global cellular mobile communication equipment market. The Global System for Mobile Communications is the most widely used mobile phone standard. All users can roam freely between mobile phone operators that have signed a "roaming agreement". The biggest difference between the Global System for Mobile Communications and previous standards is that its signaling and voice channels are both digital, so GSM is regarded as the second generation (2G) mobile phone system.

[0057] 6. Radio frequency (RF). In the field of electronic technology, radio frequency refers to electromagnetic frequencies that can be radiated into space, ranging from 300KHz to 30GHz. Radio frequency current is a high-frequency alternating electromagnetic wave. For example, alternating current that changes less than 1000 times per second is called low-frequency current, and alternating current that changes more than 10,000 times per second is called high-frequency current, and radio frequency is such a high-frequency current. RF chip (RF Integrated Circuit, RFIC) refers to an integrated circuit chip that works in the radio frequency band to achieve specific radio frequency functions.

[0058] 7. Boost / bypass. In the field of electronic technology, boost / bypass is a circuit that can select between a boost circuit and a bypass circuit. According to actual needs, a selector switch can be used to select either the boost circuit or the bypass circuit.

[0059] 8. Standalone (SA): In the field of electronic technology, standalone refers to the construction of a new 5G network, including new base stations, backhaul links, and core networks. While introducing new network elements and interfaces, SA will also adopt new technologies such as network virtualization and software-defined networks on a large scale, and combine them with 5G new radio (5GNR). At the same time, the technical challenges faced by its protocol development, network planning and deployment, and interoperability will exceed those of 3G and 4G systems.

[0060] 9. Non-standalone (SA): In the field of electronic technology, non-standalone networking refers to the use of existing 4G infrastructure to deploy 5G networks. 5G carriers based on the NSA architecture only carry user data, and their control signaling is still transmitted through the 4G network.

[0061] The above is a brief introduction to the nouns involved in the embodiments of the present application, which will not be repeated below.

[0062] Figure 1 The present invention is a schematic diagram of a scenario of a mobile communication system to which an embodiment of the present application is applicable.

[0063] like Figure 1 As shown, the user can use the terminal device 100 to communicate with the base station 200. The embodiment of the present application does not specifically limit the type of the terminal device 100. In some embodiments, the terminal device 100 can be a mobile phone, a wearable device (such as a smart bracelet, a smart watch, a headset, etc.), a tablet computer, a laptop computer (laptop), a handheld computer, a notebook computer, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a cellular phone, a personal digital assistant (personal digital assistant, PDA), an augmented reality (Augmented reality, AR) \ virtual reality (virtual reality, VR) device and other IOT (internet of things, Internet of Things) devices, and can also be a TV, a large screen, a printer, a projector and other devices. For ease of understanding, the following embodiments are exemplified by taking the terminal device 100 as a mobile phone as an example. For ease of understanding, the following embodiments are exemplified by taking the terminal device 100 as a mobile phone as an example.

[0064] Figure 2 A schematic diagram of the structure of a terminal device provided in an embodiment of the present application.

[0065] like Figure 2 As shown, the terminal device 100 may include a baseband subsystem 10, a radio frequency subsystem 20 composed of a radio frequency transceiver chip (radio frequency integrated circuit, RFIC) 21 and a radio frequency front end module (radio frequency front end, RFFE) 22, as well as an antenna (antenna, ANT) subsystem 30, a power supply module 40, etc. These devices can be coupled through various interconnection buses or other connection methods.

[0066] The baseband subsystem 10 can extract useful information or data bits from the baseband signal, or convert the information or data bits into a baseband signal to be sent. These information or data bits can be data representing user data or control information such as voice, text, video, etc. Exemplarily, the baseband subsystem 10 can implement signal processing operations such as modulation and demodulation, encoding and decoding. Different baseband signal processing operations can be provided for different wireless access technologies, such as 5G NR and 4G LTE. Therefore, in order to support multiple mobile communication modes, the baseband subsystem 10 may include multiple processing cores or multiple hardware accelerators (HAC) at the same time. The baseband subsystem 10 can be integrated into one or more chips.

[0067] Exemplarily, the baseband subsystem 10 can be used as an independent chip, which can be called a modem chip. The hardware components of the baseband subsystem 10 can be manufactured and sold in units of modem chips. Modem chips can also be called baseband chips or baseband processors. In addition, the baseband subsystem 10 can also be further integrated in a system on chip (system on chip technology, SOC) chip, which can be manufactured and sold in units of SOC chips. The software components of the baseband subsystem 10 can be built into the hardware components of the chip before the chip leaves the factory, or can be imported from other non-volatile memories into the hardware components of the chip after the chip leaves the factory, or these software components can be downloaded and updated online through the network.

[0068] In addition, since the RF signal is an analog signal, the signal processed by the baseband subsystem 10 is mainly a digital signal, and an analog-to-digital converter device is also required in the terminal device. The analog-to-digital converter device may include an analog-to-digital converter (ADC) that converts an analog signal into a digital signal, and a digital-to-analog converter (DAC) that converts a digital signal into an analog signal. It should be understood that the analog-to-digital converter device and the digital-to-analog converter can be set in the baseband subsystem 10 or in the RF subsystem 20, and the embodiment of the present application does not impose any restrictions on this.

[0069] The RF subsystem 20 can be divided into an RF receive path and an RF transmit path. The RF receive path can receive RF signals through an antenna, process the RF signals, such as amplification, filtering, down-conversion, and analog-to-digital conversion, to obtain baseband signals, and transmit them to the baseband subsystem 10. The RF transmit path can receive baseband signals from the baseband subsystem 10, process the baseband signals, such as up-conversion, amplification, filtering, and digital-to-analog conversion, to obtain RF signals, and radiate the RF signals into space through an antenna. Specifically, the RF subsystem 20 may include electronic devices such as RF switches, duplexers, antenna tuners, low noise amplifiers (LNA), power amplifiers, mixers, local oscillators (LO), filters, etc., which can be integrated into one or more chips as needed. The antenna can sometimes also be considered as part of the RF subsystem 20.

[0070] Exemplarily, the above electronic devices can be separately arranged in the antenna, the RF front-end module 22 and the RF transceiver chip 21 as needed. The RF transceiver chip 21 can be composed of devices such as a mixer and a local oscillator. Among them, the local oscillator is used to provide a local oscillator signal; the mixer is used to mix the RF signal with the local oscillator signal provided by the local oscillator. The RF transceiver chip 21 can also be called a receiver, a transmitter or a transceiver.

[0071] The RF front-end module 22 can be composed of electronic devices such as filters, low-noise amplifiers, power amplifiers, duplexers, and RF switches. The RF switch is used to switch between receiving and transmitting RF signals and between different frequency bands; the duplexer is used to isolate the transmitting and receiving paths of RF signals, thereby ensuring that receiving and transmitting can work normally when sharing the same antenna; the filter is used to retain signals within a specific frequency band and filter out signals outside the characteristic frequency band. The low-noise amplifier is used to amplify the RF signal of the receiving channel; the power amplifier is used to amplify the RF signal of the transmitting path.

[0072] In the embodiment of the present application, the RF front-end module 22 may include a RF switch.

[0073] Here, the RF transceiver chip 21 can output control signals to components such as RF switches in the RF front-end module 22 through control lines to control the RF switches to switch between different links.

[0074] It should be understood that the above is only an example, and the RF subsystem 20 may also include other devices or adopt other integration methods. For example, some devices belonging to the RF front-end module 22 may be integrated into the RF transceiver chip 21, or the antenna and the RF front-end module 22 may be integrated into the RF transceiver chip 21. The specific settings and modifications can be made as needed, and the embodiments of the present application do not impose any restrictions on this.

[0075] The antenna subsystem 30 includes multiple antennas, where ANT1 represents the first antenna, ANTn represents the nth antenna, and n is a positive integer greater than 1. The antenna subsystem 30 may also include an antenna switch for switching to different antennas so that different signals are transmitted using different antennas.

[0076] The power supply module 40 is used to supply power to each device. For example, the power supply can provide voltage to the power amplifier. The power supply module 40 may include multiple power supplies, which may be the same or different. The power supply module 40 may also supply power to the baseband subsystem 10, the radio frequency subsystem 20, and the antenna subsystem 30. The same power supply may be used to supply power to each subsystem, or different power supplies may be used to supply power to each subsystem.

[0077] In addition, the terminal device 100 may also include an application subsystem, which may serve as the main control system or main computing system of the terminal device 100, for running the main operating system and application programs, managing the software and hardware resources of the entire terminal device 100, and providing a user operation interface for the user. The application subsystem may include one or more processing cores. In addition, the application subsystem may also include driver software related to other subsystems (such as the baseband subsystem 10). The baseband subsystem 10 may also include one or more processing cores, as well as hardware accelerators and caches, etc.

[0078] It should be understood that the above is only an example of the structure of the terminal device 100, and the terminal device 100 may also include other subsystems or devices, which can be configured and modified as needed, and the embodiments of the present application do not impose any limitations on this.

[0079] Combine the following Figure 3 First, we will introduce in detail the problem that when the battery voltage of the battery is lower than the required voltage of the load but the load has not completely stopped working, the use of APT power supply often causes the load to enter an abnormal state.

[0080] Figure 3 A schematic diagram of the structure of a power supply module provided in an embodiment of the present application.

[0081] For example, in the embodiments of the present application, Figure 3As shown in (a), the power supply module 40 may include a SOC chip 401, a battery 402 and an APT power supply 403. The SOC chip 401 is connected to the load 50, the battery 402 and the APT power supply 403 respectively. The SOC chip 401 is used to obtain the required voltage of the load 50, and obtain a regulation signal according to the required voltage of the load 50 and the battery voltage output by the battery 402. The battery 402 is connected to the SOC chip 401 and the APT power supply 403 respectively, and the battery 402 is used to store electrical energy. The APT power supply 403 is connected to the battery 402, the APT power supply 403 and the load 50 respectively. The APT power supply 403 is used to step-regulate the battery voltage according to the regulation signal of the SOC chip 401, so that the APT power supply 403 can output the required voltage of the load 50.

[0082] For example, in the embodiments of the present application, Figure 3 As shown in (b), optionally, an RFIC404 can also be set between the SOC chip 401 and the load 50. The RFIC404 is used to receive the required power amplitude signal that the base station requires the load 50 to transmit and send it to the SOC chip 401. Then, the SOC chip 401 obtains the required voltage of the load 50 based on the required power amplitude signal that the base station requires the load 50 to transmit and the correspondence table between the required power and the required voltage.

[0083] For example, in the embodiments of the present application, Figure 3 As shown in (c), the APT power supply 403 can adopt a structure in which a buck-APT unit, a boost-APT unit and a bypass unit are connected in parallel, that is, the output end of the APT power supply 403 can output three voltages respectively, for example, the first power supply end can output the voltage passing through the boost-APT unit, the second power supply end can output the voltage passing through the bypass unit, and the third power supply end can output the voltage passing through the buck-APT unit.

[0084] In the process of battery 402 supplying power to load 50 through APT power supply 403, when the battery voltage of battery 402 is lower than the required voltage of load 50 and higher than the shutdown voltage of load 50 (generally 3.15V or 2.85V), load 50 is in an undervoltage state but is not shut down. If a buck-APT unit or a bypass unit is used to continue to reduce the battery voltage of battery 402, load 50 will enter an abnormal working state. If a boost-APT unit is selected to boost the battery voltage of the battery 402, since the current integrated boost-APT unit only integrates the boost mode for 3G, 4G, and 5G power supply, but does not integrate the boost mode for 2G GSM power supply, when only 2G GSM is working, that is, when the load 50 is in some mountainous areas or remote areas where only 2G network exists, even if the boost-APT unit is selected, it cannot be used, and only the buck-APT unit or the bypass unit can continue to step down the battery voltage of the battery 402, which will still cause the load 50 to enter an abnormal working state.

[0085] For example, when the load 50 is a radio frequency chip, the undervoltage state of the load 50 often causes the phenomenon of being unable to send signals, affecting the normal operation of the load 50. For example, when the load 50 is a mobile phone, the mobile phone may be unable to communicate, affecting the user experience.

[0086] In view of this, an embodiment of the present application provides a power supply circuit. When the battery voltage powered by an average power tracking power supply is lower than the required voltage of the load, the battery voltage can be boosted by a voltage regulation module, and the battery voltage passing through the voltage regulation module can be power tracked by a power tracking module, so that the load can obtain the required power supply voltage to maintain normal operation, thereby improving the user experience.

[0087] Combine the following Figures 4 to 15 , and then a scheme for regulating the battery voltage that is reduced to below the required voltage of the load through the power supply circuit is introduced in detail. In an embodiment of the present application, the connection between two electrical modules / electronic devices includes a communication connection and an electrical connection. The communication connection here refers to a connection that can transmit a communication signal. The communication signal can be an electrical signal or an optical signal, which is not limited here. An electrical connection refers to a connection that can transmit an electrical signal. Electrical connections include direct connections and indirect connections. For example, a direct connection between device A and device B means that device A and device B are connected through a wire to transmit an electrical signal. An indirect connection between device A and device B means that device A is connected to the first end of device C through a wire, and the second end of device C is connected to device B through a wire, so that device A and device B can transmit electrical signals through device C. For ease of understanding, in the following description, "electrical connection" is referred to as connection.

[0088] Figure 4 A schematic diagram of the structure of a power supply circuit provided in an embodiment of the present application.

[0089] like Figure 4 As shown, illustratively, an embodiment of the present application provides a power supply circuit 60, including a battery voltage detection module 601, a control module 602, a voltage regulation module 603 and a power tracking module 604. Among them, the battery voltage detection module 601 is connected to the battery 402, and the battery voltage detection module 601 is used to detect the battery voltage of the battery 402. Exemplarily, the battery voltage detection module 601 can use a fuel gauge. The control module 602 is connected to the battery voltage detection module 601, and the control module 602 is used to obtain the required voltage of the load 50. When the battery voltage is less than the required voltage, a boost signal is issued to increase the battery voltage. When the battery voltage is not less than the required voltage, a bypass signal or a step-down signal is issued to keep the battery voltage unchanged or reduce it. Exemplarily, the control module 602 can be a SOC chip.

[0090] The voltage regulating module 603 is connected to the control module 602 and the battery 402 respectively, and the voltage regulating module 603 is used to boost the battery voltage according to the boost signal; bypass the battery voltage according to the bypass signal, or buck the battery voltage according to the buck signal. Exemplarily, the voltage regulating module 603 can be a boost / bypass circuit (boost / bypass) or a boost / buck circuit (boost / buck). The power tracking module 604 is connected to the voltage regulating module 603 and the load 50 respectively, and the power tracking module 604 is used to perform power tracking on the battery voltage passing through the voltage regulating module 603 to provide a power supply voltage to the load 50, and the power supply voltage is equal to the required voltage.

[0091] Optionally, according to actual needs, the power tracking module 604 may include any one of an average power tracking unit (APT) and an envelope tracking unit (ET).

[0092] Optionally, the average power tracking unit may include any one of a buck-type average power tracking unit (buck-APT), a boost-type average power tracking unit (boost-APT), or a buck-boost type average power tracking unit (buck / boost-APT).

[0093] Figure 5 A schematic diagram of a flow chart of a power supply circuit provided in an embodiment of the present application.

[0094] like Figure 5 As shown, illustratively, an embodiment of the present application provides a working process of a working circuit, which may specifically include the following steps:

[0095] S701 , obtaining a required voltage of the load 50 .

[0096] It should be noted that the control module 602 can directly obtain the required voltage of the load 50, or can indirectly obtain the required voltage of the load 50. For example, when the load 50 is a non-communication device, such as a camera, a motor, etc., the control module 602 can directly obtain the required voltage of the load. When the load 50 is a communication device, such as a load device in a radio frequency module, the control module 602 can indirectly obtain the required voltage of the load through a radio frequency chip.

[0097] Exemplarily, the required power amplitude signal that the base station requires the terminal device to transmit is first received by the RF chip and sent to the SOC chip. Then, the SOC chip obtains the required voltage of the terminal device based on the required power amplitude signal that the base station requires the terminal device to transmit and the correspondence table between the required power and the required voltage.

[0098] S702 , obtaining the battery voltage of the battery 402 .

[0099] For example, the control module 602 may detect the battery voltage of the battery 402 through a fuel gauge and send the voltage to the control module 602 .

[0100] S703: Determine whether the battery voltage is less than the required voltage.

[0101] Exemplarily, the control module 602 can determine whether the battery voltage of the battery 402 is less than the required voltage of the load 50. When the battery voltage of the battery 402 is less than the required voltage of the load 50, it indicates that the battery 402 is in an undervoltage state at this time, and the control module 602 generates a boost signal, and the next step is S704; when the battery voltage of the battery 402 is not less than the required voltage of the load 50, it indicates that the battery 402 is sufficiently charged at this time, and the control module 602 generates a bypass signal or a step-down signal, and then proceeds to S705.

[0102] S704 , controlling the voltage regulating module to boost the battery voltage through the boost signal.

[0103] Exemplarily, the control module 602 controls the voltage regulating module 603 to boost the battery voltage of the battery 402 through a boost signal, so that when the battery voltage of the battery 402 is lower than the required voltage of the load 50 , the required voltage of the load 50 can be met.

[0104] S705: Control the voltage regulating module to bypass or reduce the battery voltage through the bypass signal or the voltage reduction signal.

[0105] Exemplarily, the control module 602 controls the voltage regulating module 603 to bypass or reduce the battery voltage of the battery 402 through a bypass signal or a voltage reduction signal, so that when the battery voltage of the battery 402 is not less than the required voltage of the load 50, it can also be more adapted to the required voltage of the load 50.

[0106] S706: Perform power tracking on the battery voltage through a power tracking module to output a power supply voltage to the load.

[0107] Exemplarily, the control module 602 performs power tracking on the battery voltage passing through the voltage regulating module 603 through the power tracking module 604 , so as to make the supply voltage closer to the required voltage of the load 50 .

[0108] Figure 6 This is a structural schematic diagram of a power supply circuit provided in yet another embodiment of the present application.

[0109] like Figure 6 As shown, illustratively, an embodiment of the present application provides a power supply circuit 60, including a battery voltage detection module 601, a control module 602, a voltage regulation module 603 and a power tracking module 604. Among them, the battery voltage detection module 601 is connected to the battery 402, and the battery voltage detection module 601 is used to detect the battery voltage of the battery 402. Exemplarily, the battery voltage detection module 601 can use a fuel gauge. The control module 602 is connected to the battery voltage detection module 601, and the control module 602 is used to obtain the required voltage of the load 50. When the battery voltage is less than the required voltage, a boost signal is issued to increase the battery voltage. When the battery voltage is not less than the required voltage, a bypass signal or a step-down signal is issued to keep the battery voltage unchanged or reduce it. Exemplarily, the control module 602 can be a SOC chip.

[0110] The voltage regulating module 603 is connected to the control module 602 and the battery 402 respectively, and the voltage regulating module 603 is used to boost the battery voltage according to the boost signal, bypass the battery voltage according to the bypass signal, or buck the battery voltage according to the buck signal. Exemplarily, the voltage regulating module 603 can be a boost / bypass circuit (boost / bypass), or a boost / buck circuit (boost / buck). The power tracking module 604 is connected to the voltage regulating module 603 and the load 50 respectively, and the power tracking module 604 is used to perform power tracking on the battery voltage passing through the voltage regulating module 603 to provide the required voltage to the load 50.

[0111] Optionally, according to actual needs, the power tracking module 604 may include an average power tracking unit (APT) and an envelope tracking unit, wherein the average power tracking unit (APT) may include a buck-type average power tracking unit (buck-APT), a boost-type average power tracking unit (boost-APT) or a buck-boost type average power tracking unit (buck / boost-APT).

[0112] Exemplarily, in one embodiment of the present application, Exemplarily, in the embodiment of the present application, the voltage regulation module 603 may include a first switch 6031, a boost unit 6032 and a bypass unit 6033. The first switch 6031 is connected to the control module 602 and the battery 402 respectively, and the first switch 6031 is used to conduct the path between the battery 402 and the boost unit 6032 when receiving the boost signal, or conduct the path between the battery 402 and the bypass unit 6033 when receiving the bypass signal. For example, the first switch 6031 can be a single-pole double-throw switch or an electromagnetic relay. The boost unit 6032 is connected to the first switch 6031 and the power tracking module 604 respectively, and the boost unit 6032 is used to boost the battery voltage. For example, the boost unit 6032 can be a boost circuit. The bypass unit 6033 is connected to the first switch 6031 and the power tracking module 604 respectively, and the bypass unit 6033 is used to bypass the battery voltage. For example, the bypass unit 6033 may be a wire or a bypass circuit.

[0113] Exemplarily, during the operation of the voltage regulating module 603, when the first switch 6031 receives a boost signal from the control module 602, the path between the battery 402 and the boost unit 6032 is turned on, so that the battery voltage is boosted through the boost unit 6032. When the first switch 6031 receives a bypass signal from the control module 602, the path between the battery 402 and the bypass unit 6033 is turned on, so that the battery voltage is bypassed through the bypass unit 6033.

[0114] Figure 7 This is a structural schematic diagram of a power supply circuit provided in yet another embodiment of the present application.

[0115] like Figure 7As shown, illustratively, an embodiment of the present application provides a power supply circuit 60, including a battery voltage detection module 601, a control module 602, a voltage regulation module 603 and a power tracking module 604. Among them, the battery voltage detection module 601 is connected to the battery 402, and the battery voltage detection module 601 is used to detect the battery voltage of the battery 402. Exemplarily, the battery voltage detection module 601 can use a fuel gauge. The control module 602 is connected to the battery voltage detection module 601, and the control module 602 is used to obtain the required voltage of the load 50. When the battery voltage is less than the required voltage, a boost signal is issued to increase the battery voltage. When the battery voltage is not less than the required voltage, a bypass signal or a step-down signal is issued to keep the battery voltage unchanged or reduce it. Exemplarily, the control module 602 can be a SOC chip.

[0116] The voltage regulating module 603 is connected to the control module 602 and the battery 402 respectively, and the voltage regulating module 603 is used to boost the battery voltage according to the boost signal; bypass the battery voltage according to the bypass signal, or buck the battery voltage according to the buck signal. Exemplarily, the voltage regulating module 603 can be a boost / bypass circuit (boost / bypass) or a boost / buck circuit (boost / buck). The power tracking module 604 is connected to the voltage regulating module 603 and the load 50 respectively, and the power tracking module 604 is used to perform power tracking on the battery voltage passing through the voltage regulating module 603 to provide the required voltage to the load 50.

[0117] Optionally, according to actual needs, the power tracking module 604 may include an average power tracking unit (APT) and an envelope tracking unit, wherein the average power tracking unit (APT) may include a buck-type average power tracking unit (buck-APT), a boost-type average power tracking unit (boost-APT) or a buck-boost type average power tracking unit (buck / boost-APT).

[0118] Exemplarily, in one embodiment of the present application, the voltage regulation module 603 includes a first switch 6031, a boost unit 6032 and a buck unit 6034. The first switch 6031 is connected to the control module 602 and the battery 402 respectively, and the first switch 6031 is used to conduct the path between the battery and the boost unit 6032 when receiving a boost signal, or conduct the path between the battery 402 and the buck unit 6034 when receiving a buck signal. For example, the first switch 6031 can be a single-pole double-throw switch or an electromagnetic relay. The boost unit 6032 is connected to the first switch 6031 and the power tracking module 604 respectively, and the boost unit 6032 is used to boost the battery voltage. For example, the boost unit 6032 can be a boost circuit. The buck unit 6034 is connected to the first switch 6031 and the power tracking module 604 respectively, and the buck unit 6034 bucks the battery voltage. For example, the buck unit 6034 can be a buck circuit.

[0119] Exemplarily, during the operation of the voltage regulating module 603, when the first switch 6031 receives a boost signal from the control module 602, the path between the battery 402 and the boost unit 6032 is turned on, so that the battery voltage is boosted through the boost unit 6032. When the first switch 6031 receives a buck signal from the control module 602, the path between the battery 402 and the buck unit 6034 is turned on, so that the battery voltage is bucked through the buck unit 6034.

[0120] Figure 8 This is a structural schematic diagram of a power supply circuit provided in yet another embodiment of the present application.

[0121] like Figure 8 As shown, illustratively, an embodiment of the present application provides a power supply circuit 60, including a battery voltage detection module 601, a control module 602, a voltage regulation module 603, a power tracking module 604 and a feedback detection module 605. Among them, the battery voltage detection module 601 is connected to the battery 402, and the battery voltage detection module 601 is used to detect the battery voltage of the battery 402. Exemplarily, the battery voltage detection module 601 can use a fuel gauge. The control module 602 is connected to the battery voltage detection module 601, and the control module 602 is used to obtain the required voltage of the load 50. When the battery voltage is less than the required voltage, a boost signal is issued to increase the battery voltage. When the battery voltage is not less than the required voltage, a bypass signal or a step-down signal is issued to keep the battery voltage unchanged or reduce it. Exemplarily, the control module 602 can be a SOC chip.

[0122] The voltage regulating module 603 is connected to the control module 602 and the battery 402 respectively, and the voltage regulating module 603 is used to boost the battery voltage according to the boost signal; bypass the battery voltage according to the bypass signal, or buck the battery voltage according to the buck signal. Exemplarily, the voltage regulating module 603 can be a boost / bypass circuit (boost / bypass), or a boost / buck circuit (boost / buck). The power tracking module 604 is connected to the voltage regulating module 603 and the load 50 respectively, and the power tracking module 604 is used to track the battery voltage passing through the voltage regulating module 603 to provide the required voltage to the load 50. Optionally, according to actual needs, the power tracking module 604 may include an average power tracking unit (APT) and an envelope tracking unit, wherein the average power tracking unit (APT) may include a buck-type average power tracking unit (buck-APT), a boost-type average power tracking unit (boost-APT) or a buck-boost average power tracking unit (buck / boost-APT).

[0123] The feedback detection module 605 is connected to the output end of the voltage regulation module 603 and the control module 602 respectively. The feedback detection module 605 is used to detect the feedback voltage of the voltage regulation module 603 so that the control module 602 can adjust the control signal of the voltage regulation module 603 according to the feedback voltage to output the power supply voltage to the load.

[0124] Optionally, according to actual needs, the power tracking module 604 may include an average power tracking unit (APT) and an envelope tracking unit, wherein the average power tracking unit (APT) may include a buck-type average power tracking unit (buck-APT), a boost-type average power tracking unit (boost-APT) or a buck-boost type average power tracking unit (buck / boost-APT).

[0125] Exemplarily, the control signal of the voltage regulating module 603 may be a boost signal, a bypass signal or a buck signal, etc. The boost signal may include a specific boost amplitude, and the buck signal may include a specific buck amplitude.

[0126] Exemplarily, during the operation of the feedback detection module 605, the control module 602 generates a control signal according to the required voltage of the load and the battery voltage of the battery 402, so that the voltage regulation module 603 regulates the battery voltage of the battery 402 according to the control signal. The feedback detection module 605 detects the output voltage of the voltage regulation module 603 and feeds it back to the control module 602, so that the control module 602 can adjust the control signal according to the output voltage of the voltage regulation module 603 in a timely manner.

[0127] Fig. 9 This is a structural schematic diagram of a power supply circuit provided in yet another embodiment of the present application.

[0128] like Fig. 9 As shown, illustratively, an embodiment of the present application provides a power supply circuit 60, including a battery voltage detection module 601, a control module 602, a voltage regulation module 603, a power tracking module 604 and a radio frequency chip 606. Among them, the battery voltage detection module 601 is connected to the battery 402, and the battery voltage detection module 601 is used to detect the battery voltage of the battery 402. Exemplarily, the battery voltage detection module 601 can use a fuel gauge. The control module 602 is connected to the battery voltage detection module 601, and the control module 602 is used to obtain the required voltage of the load 50. When the battery voltage is less than the required voltage, a boost signal is issued to increase the battery voltage. When the battery voltage is not less than the required voltage, a bypass signal or a step-down signal is issued to keep the battery voltage unchanged or reduce it. Exemplarily, the control module 602 can be a SOC chip.

[0129] The voltage regulating module 603 is connected to the control module 602 and the battery 402 respectively, and the voltage regulating module 603 is used to boost the battery voltage according to the boost signal; bypass the battery voltage according to the bypass signal, or buck the battery voltage according to the buck signal. Exemplarily, the voltage regulating module 603 can be a boost / bypass circuit (boost / bypass), or a boost / buck circuit (boost / buck). The power tracking module 604 is connected to the voltage regulating module 603 and the load 50 respectively, and the power tracking module 604 is used to track the battery voltage passing through the voltage regulating module 603 to provide the required voltage to the load 50. Optionally, according to actual needs, the power tracking module 604 may include an average power tracking unit (APT) and an envelope tracking unit, wherein the average power tracking unit (APT) may include a buck-type average power tracking unit (buck-APT), a boost-type average power tracking unit (boost-APT) or a buck-boost average power tracking unit (buck / boost-APT).

[0130] The RF chip 606 is connected to the load 50, the power tracking module 604 and the control module 602 respectively. The RF chip 606 is used to obtain the required power of the load 50 and send it to the control module 602, and control the power tracking module 604 to output the supply voltage according to the control signal of the control module 602.

[0131] Exemplarily, during the operation of the RF chip 606, the RF chip 606 can be used to directly obtain the required power of the load 505. For example, the RF chip 606 can directly obtain the required power amplitude signal that the base station requires the terminal device to transmit and send it to the control module 602. The control module 602 obtains the required voltage of the terminal device 100 according to the required power amplitude signal of the terminal device 100 and the corresponding relationship table between the required power and the required voltage, and generates a control signal in combination with the required voltage of the terminal device 100 and the battery voltage of the battery 402. Thus, the RF chip 606 also controls the power tracking module 604 to output the power supply voltage according to the control signal of the control module 602, and finally makes the power supply circuit 60 output the required power that the base station requires the terminal device 100 to transmit.

[0132] Fig.10 This is a structural schematic diagram of a power supply circuit provided in yet another embodiment of the present application.

[0133] like Fig.10 As shown, illustratively, an embodiment of the present application provides a power supply circuit 60, including a battery voltage detection module 601, a control module 602, a voltage regulation module 603 and a power tracking module 604. Among them, the battery voltage detection module 601 is connected to the battery 402, and the battery voltage detection module 601 is used to detect the battery voltage of the battery 402. Exemplarily, the battery voltage detection module 601 can use a fuel gauge. The control module 602 is connected to the battery voltage detection module 601, and the control module 602 is used to obtain the required voltage of the load 50. When the battery voltage is less than the required voltage, a boost signal is issued to increase the battery voltage. When the battery voltage is not less than the required voltage, a bypass signal or a step-down signal is issued to keep the battery voltage unchanged or reduce it. Exemplarily, the control module 602 can be a SOC chip.

[0134] The voltage regulating module 603 is connected to the control module 602 and the battery 402 respectively, and the voltage regulating module 603 is used to boost the battery voltage according to the boost signal; bypass the battery voltage according to the bypass signal, or buck the battery voltage according to the buck signal. Exemplarily, the voltage regulating module 603 can be a boost / bypass circuit (boost / bypass), or a boost / buck circuit (boost / buck). The power tracking module 604 is connected to the voltage regulating module 603 and the load 50 respectively, and the power tracking module 604 is used to track the battery voltage passing through the voltage regulating module 603 to provide the required voltage to the load 50. Optionally, according to actual needs, the power tracking module 604 may include an average power tracking unit (APT) and an envelope tracking unit, wherein the average power tracking unit (APT) may include a buck-type average power tracking unit (buck-APT), a boost-type average power tracking unit (boost-APT) or a buck-boost average power tracking unit (buck / boost-APT).

[0135] Exemplarily, in the embodiment of the present application, the voltage regulation module 603 may include a first switch 6031, a boost unit 6032 and a bypass unit 6033. The first switch 6031 is connected to the control module 602 and the battery 402 respectively, and the first switch 6031 is used to conduct the path between the battery 402 and the boost unit 6032 when receiving the boost signal, or conduct the path between the battery 402 and the bypass unit 6033 when receiving the bypass signal. For example, the first switch 6031 can be a single-pole double-throw switch or an electromagnetic relay. The boost unit 6032 is connected to the first switch 6031 and the power tracking module 604 respectively, and the boost unit 6032 is used to boost the battery voltage. For example, the boost unit 6032 can be a boost circuit. The bypass unit 6033 is connected to the first switch 6031 and the power tracking module 604 respectively, and the bypass unit 6033 is used to bypass the battery voltage. For example, the bypass unit 6033 can be a wire or a bypass circuit.

[0136] like Fig.10As shown, exemplarily, in an embodiment of the present application, the power tracking module 604 may adopt buck-APT6041. The load 50 may include a first power supply terminal, a second power supply terminal and a third power supply terminal. The output terminal of the voltage regulation module 603 is connected to the first power supply terminal of the load 50, and is used to output a first voltage, that is, the first voltage may be a voltage passed through a boost unit 6032 (boost), or a voltage passed through a bypass unit 6033 (bypass), which is generally applied to 2G networks, and the voltage range may be 3.4 to 4.3V. The output terminals of the buck-APT6041 are respectively connected to the second power supply terminal and the third power supply terminal of the load 50, and are used to output a second voltage or a third voltage, that is, the second voltage may be a voltage passed through a boost unit 6032 (boost) and buck-APT6041, which is generally applied to 5G networks, and the voltage range may be 1 to 3.8V. The third voltage may be a voltage passing through the bypass unit 6033 (bypass) and the buck-APT 6041 , which is generally applied to 3G or 4G networks, and the voltage range may be 1 to 3.4V, so that the power supply circuit 60 outputs the voltage required by the load 50 .

[0137] That is to say, when the NSA scenario is not used and only the SA scenario is used, the power supply circuit 60 provided in the embodiment of the present application can replace the buck-boost circuit, so that the load 50 can meet the voltage requirements of 2G, 3G, 4G or 5G.

[0138] It should be noted that the load 50 may include multiple power supply terminals.

[0139] That is to say, when the voltage output by the power supply circuit 60 is lower than the required voltage of the load 50, the battery voltage can be boosted by the boost unit 6032 (boost), and the battery voltage passing through the boost unit 6032 (boost) can be tracked in a buck-type average power manner by buck-APT6041, so that the load 50 can obtain the required voltage to maintain a normal working state, especially meeting the load voltage requirements of the 2G network and improving the user experience.

[0140] Fig.11 This is a structural schematic diagram of a power supply circuit provided in yet another embodiment of the present application.

[0141] like Fig.11As shown, illustratively, an embodiment of the present application provides a power supply circuit 60, including a battery voltage detection module 601, a control module 602, a voltage regulation module 603 and a power tracking module 604. Among them, the battery voltage detection module 601 is connected to the battery 402, and the battery voltage detection module 601 is used to detect the battery voltage of the battery 402. Exemplarily, the battery voltage detection module 601 can use a fuel gauge. The control module 602 is connected to the battery voltage detection module 601, and the control module 602 is used to obtain the required voltage of the load 50. When the battery voltage is less than the required voltage, a boost signal is issued to increase the battery voltage. When the battery voltage is not less than the required voltage, a bypass signal or a step-down signal is issued to keep the battery voltage unchanged or reduce it. Exemplarily, the control module 602 can be a SOC chip.

[0142] The voltage regulating module 603 is connected to the control module 602 and the battery 402 respectively, and the voltage regulating module 603 is used to boost the battery voltage according to the boost signal; bypass the battery voltage according to the bypass signal, or buck the battery voltage according to the buck signal. Exemplarily, the voltage regulating module 603 can be a boost / bypass circuit (boost / bypass), or a boost / buck circuit (boost / buck). The power tracking module 604 is connected to the voltage regulating module 603 and the load 50 respectively, and the power tracking module 604 is used to track the battery voltage passing through the voltage regulating module 603 to provide the required voltage to the load 50. Optionally, according to actual needs, the power tracking module 604 may include an average power tracking unit (APT) and an envelope tracking unit, wherein the average power tracking unit (APT) may include a buck-type average power tracking unit (buck-APT), a boost-type average power tracking unit (boost-APT) or a buck-boost average power tracking unit (buck / boost-APT).

[0143] Exemplarily, in the embodiment of the present application, the voltage regulation module 603 may include a first switch 6031, a boost unit 6032 and a bypass unit 6033. The first switch 6031 is connected to the control module 602 and the battery 402 respectively, and the first switch 6031 is used to conduct the path between the battery 402 and the boost unit 6032 when receiving the boost signal, or conduct the path between the battery 402 and the bypass unit 6033 when receiving the bypass signal. For example, the first switch 6031 can be a single-pole double-throw switch or an electromagnetic relay. The boost unit 6032 is connected to the first switch 6031 and the power tracking module 604 respectively, and the boost unit 6032 is used to boost the battery voltage. For example, the boost unit 6032 can be a boost circuit. The bypass unit 6033 is connected to the first switch 6031 and the power tracking module 604 respectively, and the bypass unit 6033 is used to bypass the battery voltage. For example, the bypass unit 6033 can be a wire or a bypass circuit.

[0144] like Fig.11 As shown, exemplarily, in an embodiment of the present application, the power tracking module 604 may adopt buck-APT6041. The load 50 may include a first power supply terminal, a second power supply terminal, and a third power supply terminal. The output terminal of buck-APT6041 is respectively connected to the first power supply terminal, the second power supply terminal, and the third power supply terminal of the load 50, for outputting a first voltage and a second voltage, or outputting a first voltage and a third voltage. For example, the first voltage may be a voltage passing through a boost unit 6032 (boost) and buck-APT6041 (the degree of voltage reduction is 0), or a voltage passing through a bypass unit 6033 (bypass) and buck-APT6041 (the degree of voltage reduction is 0), which is generally applied to 2G networks. The second voltage may be a voltage passing through a boost unit 6032 (boost) and buck-APT6041 (the degree of voltage reduction is not 0), which is generally applied to 5G networks. The third voltage may be a voltage passing through the bypass unit 6033 (bypass) and the buck-APT 6041 (the voltage reduction degree is not 0), which is generally applied to 3G or 4G networks, so that the power supply circuit 60 outputs the voltage required by the load 50 .

[0145] It should be noted that the load 50 may include multiple power supply terminals.

[0146] That is to say, when the voltage output by the power supply circuit 60 is lower than the required voltage of the load 50, the battery voltage can be boosted by the boost unit 6032 (boost), and the battery voltage passing through the boost unit 6032 (boost) can be tracked in a buck-type average power manner by buck-APT6041, so that the load 50 can obtain the required voltage to maintain a normal working state, especially meeting the load voltage requirements of the 2G network and improving the user experience.

[0147] Fig.12 This is a structural schematic diagram of a power supply circuit provided in yet another embodiment of the present application.

[0148] like Fig.12 As shown, illustratively, an embodiment of the present application provides a power supply circuit 60, including a battery voltage detection module 601, a control module 602, a voltage regulation module 603 and a power tracking module 604. Among them, the battery voltage detection module 601 is connected to the battery 402, and the battery voltage detection module 601 is used to detect the battery voltage of the battery 402. Exemplarily, the battery voltage detection module 601 can use a fuel gauge. The control module 602 is connected to the battery voltage detection module 601, and the control module 602 is used to obtain the required voltage of the load 50. When the battery voltage is less than the required voltage, a boost signal is issued to increase the battery voltage. When the battery voltage is not less than the required voltage, a bypass signal or a step-down signal is issued to keep the battery voltage unchanged or reduce it. Exemplarily, the control module 602 can be a SOC chip.

[0149] The voltage regulating module 603 is connected to the control module 602 and the battery 402 respectively, and the voltage regulating module 603 is used to boost the battery voltage according to the boost signal; bypass the battery voltage according to the bypass signal, or buck the battery voltage according to the buck signal. Exemplarily, the voltage regulating module 603 can be a boost / bypass circuit (boost / bypass), or a boost / buck circuit (boost / buck). The power tracking module 604 is connected to the voltage regulating module 603 and the load 50 respectively, and the power tracking module 604 is used to track the battery voltage passing through the voltage regulating module 603 to provide the required voltage to the load 50. Optionally, according to actual needs, the power tracking module 604 may include an average power tracking unit (APT) and an envelope tracking unit, wherein the average power tracking unit (APT) may include a buck-type average power tracking unit (buck-APT), a boost-type average power tracking unit (boost-APT) or a buck-boost average power tracking unit (buck / boost-APT).

[0150] Exemplarily, in the embodiment of the present application, the voltage regulation module 603 may include a first switch 6031, a boost unit 6032 and a bypass unit 6033. The first switch 6031 is connected to the control module 602 and the battery 402 respectively, and the first switch 6031 is used to conduct the path between the battery 402 and the boost unit 6032 when receiving the boost signal, or conduct the path between the battery 402 and the bypass unit 6033 when receiving the bypass signal. For example, the first switch 6031 can be a single-pole double-throw switch or an electromagnetic relay. The boost unit 6032 is connected to the first switch 6031 and the power tracking module 604 respectively, and the boost unit 6032 is used to boost the battery voltage. For example, the boost unit 6032 can be a boost circuit. The bypass unit 6033 is connected to the first switch 6031 and the power tracking module 604 respectively, and the bypass unit 6033 is used to bypass the battery voltage. For example, the bypass unit 6033 can be a wire or a bypass circuit.

[0151] like Fig.12 As shown, exemplarily, in an embodiment of the present application, the power tracking module 604 may adopt buck-APT6041. The load 50 may include a first power supply terminal and a third power supply terminal. The output terminal of the voltage regulation module 603 is connected to the first power supply terminal of the load 50, and is used to output a first voltage, that is, the first voltage may be a voltage passing through a boost unit 6032 (boost), or a voltage passing through a bypass unit 6033 (bypass), which is generally used in 2G networks. The output terminals of the buck-APT6041 are respectively connected to the third power supply terminal of the load 50, and are used to output a third voltage, that is, the third voltage may be a voltage passing through a bypass unit 6033 (bypass) and buck-APT6041, which is generally used in 3G or 4G networks, so that the power supply circuit 60 outputs the voltage required by the load 50.

[0152] It should be noted that the load 50 may include multiple power supply terminals.

[0153] That is to say, when the voltage output by the power supply circuit 60 is lower than the required voltage of the load 50, the battery voltage can be boosted by the boost unit 6032 (boost), and the battery voltage passing through the boost unit 6032 (boost) can be tracked in a buck-type average power manner by buck-APT6041, so that the load 50 can obtain the required voltage to maintain a normal working state, especially meeting the load voltage requirements of the 2G network and improving the user experience.

[0154] Fig.13 This is a structural schematic diagram of a power supply circuit provided in yet another embodiment of the present application.

[0155] like Fig.13As shown, an embodiment of the present application provides a power supply circuit 60, including a battery voltage detection module 601, a control module 602, a voltage regulation module 603 and a power tracking module 604. Among them, the battery voltage detection module 601 is connected to the battery 402, and the battery voltage detection module 601 is used to detect the battery voltage of the battery 402. Exemplarily, the battery voltage detection module 601 can use a fuel gauge. The control module 602 is connected to the battery voltage detection module 601, and the control module 602 is used to obtain the required voltage of the load 50. When the battery voltage is less than the required voltage, a boost signal is issued to increase the battery voltage. When the battery voltage is not less than the required voltage, a bypass signal or a step-down signal is issued to keep the battery voltage unchanged or reduce it. Exemplarily, the control module 602 can be a SOC chip.

[0156] The voltage regulating module 603 is connected to the control module 602 and the battery 402 respectively, and the voltage regulating module 603 is used to boost the battery voltage according to the boost signal; bypass the battery voltage according to the bypass signal, or buck the battery voltage according to the buck signal. Exemplarily, the voltage regulating module 603 can be a boost / bypass circuit (boost / bypass), or a boost / buck circuit (boost / buck). The power tracking module 604 is connected to the voltage regulating module 603 and the load 50 respectively, and the power tracking module 604 is used to track the battery voltage passing through the voltage regulating module 603 to provide the required voltage to the load 50. Optionally, according to actual needs, the power tracking module 604 may include an average power tracking unit (APT) and an envelope tracking unit, wherein the average power tracking unit (APT) may include a buck-type average power tracking unit (buck-APT), a boost-type average power tracking unit (boost-APT) or a buck-boost average power tracking unit (buck / boost-APT).

[0157] Exemplarily, in the embodiment of the present application, the voltage regulation module 603 may include a first switch 6031, a boost unit 6032 and a bypass unit 6033. The first switch 6031 is connected to the control module 602 and the battery 402 respectively, and the first switch 6031 is used to conduct the path between the battery 402 and the boost unit 6032 when receiving the boost signal, or conduct the path between the battery 402 and the bypass unit 6033 when receiving the bypass signal. For example, the first switch 6031 can be a single-pole double-throw switch or an electromagnetic relay. The boost unit 6032 is connected to the first switch 6031 and the power tracking module 604 respectively, and the boost unit 6032 is used to boost the battery voltage. For example, the boost unit 6032 can be a boost circuit. The bypass unit 6033 is connected to the first switch 6031 and the power tracking module 604 respectively, and the bypass unit 6033 is used to bypass the battery voltage. For example, the bypass unit 6033 can be a wire or a bypass circuit.

[0158] like Fig.13 As shown, exemplarily, in an embodiment of the present application, the power tracking module 604 may adopt buck-APT6041. The load 50 may include a first power supply terminal and a third power supply terminal. The output terminal of buck-APT6041 is respectively connected to the first power supply terminal and the third power supply terminal of the load 50, and is used to output a first voltage and a third voltage. That is, the first voltage may be a voltage passing through a boost unit 6032 (boost) and buck-APT6041 (the voltage reduction degree is 0), or a voltage passing through a bypass unit 6033 (bypass) and buck-APT6041 (the voltage reduction degree is 0), which is generally applied to 2G networks. The third voltage may be a voltage passing through a bypass unit 6033 (bypass) and buck-APT6041 (the voltage reduction degree is not 0), which is generally applied to 3G or 4G networks, so that the power supply circuit 60 outputs the voltage required by the load 50.

[0159] It should be noted that the load 50 may include multiple power supply terminals.

[0160] That is to say, when the voltage output by the power supply circuit 60 is lower than the required voltage of the load 50, the battery voltage can be boosted by the boost unit 6032 (boost), and the battery voltage passing through the boost unit 6032 (boost) can be tracked in a buck-type average power manner by buck-APT6041, so that the load 50 can obtain the required voltage to maintain a normal working state, especially meeting the load voltage requirements of the 2G network and improving the user experience.

[0161] Fig.14 This is a structural schematic diagram of a power supply circuit provided in yet another embodiment of the present application.

[0162] like Fig.14 As shown, illustratively, an embodiment of the present application provides a power supply circuit 60, including a battery voltage detection module 601, a control module 602, a voltage regulation module 603 and a power tracking module 604. Among them, the battery voltage detection module 601 is connected to the battery 402, and the battery voltage detection module 601 is used to detect the battery voltage of the battery 402. Exemplarily, the battery voltage detection module 601 can use a fuel gauge. The control module 602 is connected to the battery voltage detection module 601, and the control module 602 is used to obtain the required voltage of the load 50. When the battery voltage is less than the required voltage, a boost signal is issued to increase the battery voltage. When the battery voltage is not less than the required voltage, a bypass signal or a step-down signal is issued to keep the battery voltage unchanged or reduce it. Exemplarily, the control module 602 can be a SOC chip.

[0163] The voltage regulating module 603 is connected to the control module 602 and the battery 402 respectively, and the voltage regulating module 603 is used to boost the battery voltage according to the boost signal; bypass the battery voltage according to the bypass signal, or buck the battery voltage according to the buck signal. Exemplarily, the voltage regulating module 603 can be a boost / bypass circuit (boost / bypass), or a boost / buck circuit (boost / buck). The power tracking module 604 is connected to the voltage regulating module 603 and the load 50 respectively, and the power tracking module 604 is used to track the battery voltage passing through the voltage regulating module 603 to provide the required voltage to the load 50. Optionally, according to actual needs, the power tracking module 604 may include an average power tracking unit (APT) and an envelope tracking unit, wherein the average power tracking unit (APT) may include a buck-type average power tracking unit (buck-APT), a boost-type average power tracking unit (boost-APT) or a buck-boost average power tracking unit (buck / boost-APT).

[0164] Exemplarily, in the embodiment of the present application, the voltage regulation module 603 may include a first switch 6031, a boost unit 6032 and a bypass unit 6033. The first switch 6031 is connected to the control module 602 and the battery 402 respectively, and the first switch 6031 is used to conduct the path between the battery 402 and the boost unit 6032 when receiving the boost signal, or conduct the path between the battery 402 and the bypass unit 6033 when receiving the bypass signal. For example, the first switch 6031 can be a single-pole double-throw switch or an electromagnetic relay. The boost unit 6032 is connected to the first switch 6031 and the power tracking module 604 respectively, and the boost unit 6032 is used to boost the battery voltage. For example, the boost unit 6032 can be a boost circuit. The bypass unit 6033 is connected to the first switch 6031 and the power tracking module 604 respectively, and the bypass unit 6033 is used to bypass the battery voltage. For example, the bypass unit 6033 can be a wire or a bypass circuit.

[0165] like Fig.14 As shown, exemplarily, in an embodiment of the present application, the power tracking module 604 can adopt buck-APT6041. The load 50 includes a first power supply terminal and a second power supply terminal. The output terminal of the voltage regulation module 603 is connected to the first power supply terminal of the load 50 for outputting a first voltage. That is, the first voltage can be a voltage passing through a boost unit 6032 (boost), or a voltage passing through a bypass unit 6033 (bypass), which is generally used in 2G networks. The output terminal of the buck-APT6041 is connected to the second power supply terminal of the load 50 for outputting a second voltage. That is, the second voltage can be a voltage passing through a boost unit 6032 (boost) and buck-APT6041, which is generally used in 5G networks, so that the power supply circuit 60 outputs the voltage required by the load 50.

[0166] It should be noted that the load 50 may include multiple power supply terminals.

[0167] That is to say, when the voltage output by the power supply circuit 60 is lower than the required voltage of the load 50, the battery voltage can be boosted by the boost unit 6032 (boost), and the battery voltage passing through the boost unit 6032 (boost) can be tracked in a buck-type average power manner by buck-APT6041, so that the load 50 can obtain the required voltage to maintain a normal working state, especially meeting the load voltage requirements of the 2G network and improving the user experience.

[0168] Fig.15 This is a structural schematic diagram of a power supply circuit provided in yet another embodiment of the present application.

[0169] like Fig.15As shown, illustratively, an embodiment of the present application provides a power supply circuit 60, including a battery voltage detection module 601, a control module 602, a voltage regulation module 603 and a power tracking module 604. Among them, the battery voltage detection module 601 is connected to the battery 402, and the battery voltage detection module 601 is used to detect the battery voltage of the battery 402. Exemplarily, the battery voltage detection module 601 can use a fuel gauge. The control module 602 is connected to the battery voltage detection module 601, and the control module 602 is used to obtain the required voltage of the load 50. When the battery voltage is less than the required voltage, a boost signal is issued to increase the battery voltage. When the battery voltage is not less than the required voltage, a bypass signal or a step-down signal is issued to keep the battery voltage unchanged or reduce it. Exemplarily, the control module 602 can be a SOC chip.

[0170] The voltage regulating module 603 is connected to the control module 602 and the battery 402 respectively, and the voltage regulating module 603 is used to boost the battery voltage according to the boost signal; bypass the battery voltage according to the bypass signal, or buck the battery voltage according to the buck signal. Exemplarily, the voltage regulating module 603 can be a boost / bypass circuit (boost / bypass), or a boost / buck circuit (boost / buck). The power tracking module 604 is connected to the voltage regulating module 603 and the load 50 respectively, and the power tracking module 604 is used to track the battery voltage passing through the voltage regulating module 603 to provide the required voltage to the load 50. Optionally, according to actual needs, the power tracking module 604 may include an average power tracking unit (APT) and an envelope tracking unit, wherein the average power tracking unit (APT) may include a buck-type average power tracking unit (buck-APT), a boost-type average power tracking unit (boost-APT) or a buck-boost average power tracking unit (buck / boost-APT).

[0171] Exemplarily, in the embodiment of the present application, the voltage regulation module 603 may include a first switch 6031, a boost unit 6032 and a bypass unit 6033. The first switch 6031 is connected to the control module 602 and the battery 402 respectively, and the first switch 6031 is used to conduct the path between the battery 402 and the boost unit 6032 when receiving the boost signal, or conduct the path between the battery 402 and the bypass unit 6033 when receiving the bypass signal. For example, the first switch 6031 can be a single-pole double-throw switch or an electromagnetic relay. The boost unit 6032 is connected to the first switch 6031 and the power tracking module 604 respectively, and the boost unit 6032 is used to boost the battery voltage. For example, the boost unit 6032 can be a boost circuit. The bypass unit 6033 is connected to the first switch 6031 and the power tracking module 604 respectively, and the bypass unit 6033 is used to bypass the battery voltage. For example, the bypass unit 6033 can be a wire or a bypass circuit.

[0172] like Fig.15 As shown, exemplarily, in an embodiment of the present application, the power tracking module 604 can adopt buck-APT6041. The load 50 includes a first power supply terminal and a second power supply terminal. The output terminal of buck-APT6041 is respectively connected to the first power supply terminal and the second power supply terminal of the load 50, and is used to output a first voltage and a second voltage. That is, the first voltage can be a voltage passing through a boost unit 6032 (boost) and buck-APT6041 (the degree of voltage reduction is 0), or a voltage passing through a bypass unit 6033 (bypass) and buck-APT6041 (the degree of voltage reduction is 0), which is generally used in 2G networks. The second voltage can be a voltage passing through a boost unit 6032 (boost) and buck-APT6041 (the degree of voltage reduction is not 0), which is generally used in 5G networks, so that the power supply circuit 60 outputs the voltage required by the load 50.

[0173] It should be noted that the load 50 may include multiple power supply terminals.

[0174] That is to say, when the voltage output by the power supply circuit 60 is lower than the required voltage of the load 50, the battery voltage can be boosted by the boost unit 6032 (boost), and the battery voltage passing through the boost unit 6032 (boost) can be tracked in a buck-type average power manner by buck-APT6041, so that the load 50 can obtain the required voltage to maintain a normal working state, especially meeting the load voltage requirements of the 2G network and improving the user experience.

[0175] Illustratively, an embodiment of the present application further provides a power supply chip, including a packaging structure, and the power supply circuit 60 as described above which is packaged by the packaging structure.

[0176] In some embodiments, the power supply circuit 60 may be packaged in a packaging structure to form a whole power supply chip for ease of installation or sale.

[0177] The embodiment of the present application also provides a terminal device, including a battery, and a power supply chip as described above connected to the battery, the power supply chip including the power supply circuit 60. When the battery voltage powered by the power tracking power supply is lower than the required voltage of the load, the battery voltage is boosted by the voltage regulating module, and the power tracking module is used to perform power tracking on the battery voltage passing through the voltage regulating module, so that the load can obtain the required power supply voltage to maintain normal operation, thereby improving the user experience.

[0178] In some embodiments, the battery and the power supply chip may be packaged together to form a terminal device as a whole for easy use or sale.

[0179] It should be understood that the above is only an example of the structure of the terminal device 100, and the terminal device 100 may also include other subsystems or devices, which can be configured and modified as needed, and the embodiments of the present application do not impose any limitations on this.

[0180] The beneficial effects that can be achieved by the terminal device provided in the above-mentioned embodiment of the present application can be referred to the beneficial effects corresponding to the modules provided above, and will not be repeated here.

[0181] It should be understood that the above is only to help those skilled in the art to better understand the embodiments of the present application, rather than to limit the scope of the embodiments of the present application. According to the above examples given, those skilled in the art can obviously make various equivalent modifications or changes. For example, some steps in each embodiment of the above detection method may be unnecessary, or some steps may be newly added. Or a combination of any two or any multiple embodiments of the above. Such modifications, changes or combined solutions also fall within the scope of the embodiments of the present application. In addition, the coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0182] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0183] In addition, 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.

[0184] It should also be understood that the above description of the embodiments of the present application focuses on emphasizing the differences between the various embodiments. The same or similar points that are not mentioned can be referenced to each other. For the sake of brevity, they will not be repeated here.

[0185] It should also be understood that in the various embodiments of the present application, the size of the serial number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0186] It should also be understood that in the embodiments of the present application, "pre-setting" and "pre-definition" can be achieved by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device), and the present application does not limit its specific implementation method.

[0187] It should also be understood that the division of the methods, situations, categories and embodiments in the embodiments of the present application is only for the convenience of description and should not constitute a special limitation. The features of various methods, categories, situations and embodiments can be combined without contradiction.

[0188] It should also be understood that in the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0189] Finally, it should be noted that the above is only a specific implementation method of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims. In short, the above is only a preferred embodiment of the technical solution of the present application, and is not used to limit the protection scope of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A power supply circuit, characterized in that: It includes a battery voltage detection module, a control module, a voltage regulation module and a power tracking module; The battery voltage detection module is connected to the battery and is used to detect the battery voltage; The control module is connected to the battery voltage detection module and is used to obtain the required voltage of the load, and send a boost signal when the battery voltage is lower than the required voltage; The voltage regulating module is connected to the control module and the battery respectively, and is used to boost the battery voltage according to the boost signal; The power tracking module is connected to the voltage regulating module and the control module respectively, and is used to perform power tracking on the battery voltage passing through the voltage regulating module to output a supply voltage to the load, wherein the supply voltage is equal to the required voltage.

2. The power supply circuit according to claim 1, characterized in that: The control module is further configured to send a bypass signal or a voltage reduction signal when the battery voltage is not less than the required voltage; The voltage regulating module is further used to bypass the battery voltage according to the bypass signal, or to reduce the battery voltage according to the voltage reduction signal.

3. The power supply circuit according to claim 1, characterized in that: The power tracking module includes any one of an average power tracking unit and an envelope tracking unit.

4. The power supply circuit according to claim 3, characterized in that: The average power tracking unit includes any one of a buck-type average power tracking unit, a boost-type average power tracking unit, and a buck-boost-type average power tracking unit.

5. The power supply circuit according to claim 2, characterized in that: The voltage regulation module includes a first switch, a boost unit and a bypass unit; The first switch is connected to the control module and the battery respectively, and is used to conduct the path between the battery and the boost unit when receiving the boost signal, or conduct the path between the battery and the bypass unit when receiving the bypass signal; The boost unit is connected to the first switch and the power tracking module respectively, and is used to boost the battery voltage; The bypass unit is connected to the first switch and the power tracking module respectively, and is used to bypass the battery voltage.

6. The power supply circuit according to claim 2, characterized in that: The voltage regulation module includes a first switch, a voltage boost unit and a voltage drop unit; The first switch is connected to the control module and the battery respectively, and is used to conduct the path between the battery and the boost unit when receiving the boost signal, or conduct the path between the battery and the buck unit when receiving the buck signal; The boost unit is connected to the first switch and the power tracking module respectively, and is used to boost the battery voltage; The voltage reduction unit is connected to the first switch and the power tracking module respectively, and is used to reduce the voltage of the battery.

7. The power supply circuit according to any one of claims 1 to 6, characterized in that: The power supply circuit also includes a feedback detection module; The feedback detection module is connected to the output end of the voltage regulation module and the control module respectively, and is used to detect the feedback voltage of the voltage regulation module so that the control module can adjust the control signal of the voltage regulation module according to the feedback voltage.

8. The power supply circuit according to any one of claims 1 to 6, characterized in that: The power supply circuit also includes a radio frequency chip; The RF chip is connected to the load, the power tracking module and the control module respectively, and is used to obtain the required power of the load and transmit it to the control module, and control the power tracking module to output the supply voltage according to the control signal of the control module.

9. The power supply circuit according to any one of claims 1 to 6, characterized in that: The load includes a first power supply terminal, a second power supply terminal and a third power supply terminal; the output terminal of the voltage regulation module is connected to the first power supply terminal for outputting a first voltage; the output terminal of the power tracking module is respectively connected to the second power supply terminal and the third power supply terminal of the load for outputting a second voltage or a third voltage.

10. The power supply circuit according to any one of claims 1 to 6, characterized in that: The load includes a first power supply end, a second power supply end and a third power supply end; the output end of the power tracking module is respectively connected to the first power supply end, the second power supply end and the third power supply end of the load, for outputting a first voltage and a second voltage, or outputting the first voltage and the third voltage.

11. The power supply circuit according to any one of claims 1 to 6, characterized in that: The load includes a first power supply terminal and a third power supply terminal; the output terminal of the voltage regulation module is connected to the first power supply terminal of the load for outputting a first voltage; the output terminal of the power tracking module is connected to the third power supply terminal of the load for outputting a third voltage.

12. The power supply circuit according to any one of claims 1 to 6, characterized in that: The load includes a first power supply end and a third power supply end; the output end of the power tracking module is respectively connected to the first power supply end and the third power supply end of the load for outputting a first voltage and a third voltage.

13. The power supply circuit according to any one of claims 1 to 6, characterized in that: The load includes a first power supply end and a second power supply end; the output end of the voltage regulation module is connected to the first power supply end of the load for outputting a first voltage; the output end of the power tracking module is connected to the second power supply end of the load for outputting a second voltage.

14. The power supply circuit according to any one of claims 1 to 6, characterized in that: The load includes a first power supply terminal and a second power supply terminal; the output terminal of the power tracking module is respectively connected to the first power supply terminal and the second power supply terminal of the load for outputting a first voltage and a second voltage.

15. A power supply chip, characterized in that: It comprises a packaging structure, and a power supply circuit as described in any one of claims 1 to 14 packaged by the packaging structure.

16. A terminal device, characterized in that: It comprises a battery, and a power supply chip as claimed in claim 15 connected to the battery.

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