Charging method, charging management module, intelligent terminal and charging system

Abstract

The invention provides a charging method, a charging management module, an intelligent terminal and a charging system. The charging method comprises the following steps: determining or generating a charging voltage corresponding to first electric energy under a charging current; determining path impedance according to the charging current and the charging voltage; and determining or generating a charging power threshold based on the access impedance, and charging according to the charging power threshold. According to the technical scheme, the access impedance can be obtained, the corresponding charging power threshold value is set for charging, the risk that the charging power is higher than the upper limit during charging is effectively prevented, and the safety is improved.

Description

Technical Field

[0001] The present application relates to the field of charging technology, and in particular to a charging method, a charging management module, a smart terminal and a charging system. Background Art

[0002] The power adapter can convert the electric energy provided by the mains into the electric energy required by the smart terminal so as to charge the load in the smart terminal.

[0003] In the process of conceiving and implementing this application, the inventors found that there are at least the following problems: In some solutions, it is generally necessary to rely on a power adapter with a collection function to collect voltage values, and then charge after calculating the path impedance through the smart terminal. If the power adapter does not have a collection function, there may be a risk of exceeding the upper limit when charging the smart terminal, and the safety is poor.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Summary of the invention

[0005] In response to the above technical problems, the present application provides a charging method, a charging management module, an intelligent terminal and a charging system, which can obtain the path impedance and effectively improve the charging safety.

[0006] The present application provides a charging method, comprising the following steps:

[0007] S10: Determine or generate a charging voltage corresponding to the first electric energy under the charging current;

[0008] S20: determining the path impedance according to the charging current and the charging voltage;

[0009] S30: Determine or generate a charging power threshold based on the path impedance, and perform charging according to the charging power threshold.

[0010] Optionally, before step S10, the method further includes:

[0011] When a different upper limit signal is received, a charging current is determined or generated according to the upper limit signal.

[0012] Optionally, before step S10, the method further includes:

[0013] Determine or generate target currents corresponding to each charging current according to different received signals;

[0014] When the target current is greater than or equal to the charging current, the first electric energy is received.

[0015] Optionally, at least one of the charging currents is zero.

[0016] Optionally, when a high impedance signal is received, the charging current is set to 0.

[0017] Optionally, step S30 includes:

[0018] receiving second electric energy, and determining or generating an auxiliary voltage corresponding to the second electric energy;

[0019] determining or generating a ground impedance based on an auxiliary voltage;

[0020] Determine or generate a threshold voltage based on ground impedance, and determine or generate a charging power threshold based on path impedance;

[0021] Charging is performed according to the charging power threshold and the threshold voltage.

[0022] The present application also provides a charging management module, including:

[0023] A voltage acquisition unit, used to determine or generate a charging voltage corresponding to the first electric energy under the charging current;

[0024] An impedance determination unit, used for determining a path impedance according to a charging current and a charging voltage;

[0025] The threshold determination unit is used to determine or generate a charging power threshold based on the path impedance, and to charge according to the charging power threshold.

[0026] The present application also provides an intelligent terminal, comprising: a memory and a processor, wherein a charging program is stored in the memory, and when the processing program is executed by the processor, the steps of the charging method as described above are implemented.

[0027] Optionally, the intelligent terminal further includes a collection module; the collection module is connected to the processor;

[0028] The acquisition module is used to acquire the charging voltage corresponding to the first electric energy under the charging current.

[0029] The present application also provides a charging system, including a power adapter and the above-mentioned smart terminal.

[0030] Optionally, the processor of the smart terminal is connected to the power adapter and the load of the smart terminal respectively;

[0031] A power adapter, used for outputting a first electric energy;

[0032] a processor, configured to determine or generate a charging voltage corresponding to the first electric energy under a charging current;

[0033] The processor is further used to determine the path impedance according to the charging current and the charging voltage; and determine the charging power threshold based on the path impedance, and charge the load according to the charging power threshold.

[0034] Optionally, the charging system further includes an auxiliary power source;

[0035] The auxiliary power supply is connected to the processor and the power adapter;

[0036] An auxiliary power supply, used for outputting a second electric energy;

[0037] The processor is also used to receive the second electric energy, determine or generate an auxiliary voltage corresponding to the second electric energy; determine or generate a ground impedance based on the auxiliary voltage; determine or generate a threshold voltage based on the ground impedance, and determine or generate a charging power threshold based on the path impedance; and charge according to the charging power threshold and the threshold voltage.

[0038] As described above, the charging method of the present application determines or generates the charging voltage corresponding to the first electric energy under the charging current, determines the path impedance according to the charging current and the charging voltage, and determines or generates the charging power threshold based on the path impedance, and charges according to the charging power threshold. The intelligent terminal can obtain the path impedance and set the corresponding charging power threshold to charge the load, effectively preventing the risk of exceeding the upper limit during charging and improving charging safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0040] Figure 1 A schematic diagram of the hardware structure of a smart terminal for implementing each embodiment of the present application;

[0041] Figure 2 A communication network system architecture diagram provided for an embodiment of the present application;

[0042] Figure 3 is a schematic flow chart of a charging method according to an embodiment;

[0043] Figure 4 is a schematic diagram of the principle of the path impedance in the embodiment;

[0044] Figure 5 This is a schematic diagram of the structure of a charging system in a charging method according to an embodiment;

[0045] Figure 6 A schematic diagram of an implementation mode of a charging system in a charging method shown in an embodiment;

[0046] Figure 7Another structural schematic diagram of a charging system in a charging method shown in an embodiment;

[0047] Figure 8 A schematic diagram of another implementation of a charging system in a charging method shown in an embodiment;

[0048] Fig. 9 A schematic diagram of a charging method according to an embodiment;

[0049] Fig.10 It is a structural schematic diagram of a charging system in an embodiment;

[0050] Fig.11 FIG. 2 is another structural schematic diagram of the charging system in the embodiment.

[0051] The realization of the purpose, functional features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. The above-mentioned drawings have shown clear embodiments of this application, which will be described in more detail later. These drawings and textual descriptions are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0052] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0053] It should be noted that, in this article, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element. Optionally, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context in the specific embodiment.

[0054] It should be understood that, although the terms first, second, third, etc. may be used to describe various information in this article, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this article, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein can be interpreted as "at the time of" or "when" or "in response to determination". Furthermore, as used in this article, the singular forms "one", "one" and "the" are intended to also include plural forms, unless there is an opposite indication in the context. It should be further understood that the terms "comprising" and "including" indicate that there are the described features, steps, operations, elements, components, projects, kinds, and / or groups, but do not exclude the existence, occurrence or addition of one or more other features, steps, operations, elements, components, projects, kinds, and / or groups. The terms "or", "and / or", "including at least one of the following" etc. used in this application can be interpreted as inclusive, or mean any one or any combination. For example, “comprising at least one of the following: A, B, C” means “any of the following: A; B; C; A and B; A and C; B and C; A and B and C”, and for another example, “A, B or C” or “A, B and / or C” means “any of the following: A; B; C; A and B; A and C; B and C; A and B and C”. An exception to this definition will only occur when a combination of elements, functions, steps or operations are inherently mutually exclusive in some manner.

[0055] It should be understood that, although the various steps in the flowchart in the embodiment of the present application are displayed in sequence according to the indication of the arrows, these steps are not necessarily performed in sequence in the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and it can be performed in other orders. Moreover, at least a portion of the steps in the figure may include a plurality of sub-steps or a plurality of stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and their execution order is not necessarily performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

[0056] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0057] It should be noted that in this article, step codes such as S10 and S20 are used for the purpose of expressing the corresponding content more clearly and concisely, and do not constitute a substantial limitation on the sequence. When implementing the step, those skilled in the art may execute S20 first and then S10, etc., but these should all be within the scope of protection of this application.

[0058] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0059] In the subsequent description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present application, and have no specific meanings. Therefore, "module", "component" or "unit" can be used in a mixed manner.

[0060] The smart terminal may be implemented in various forms. For example, the smart terminal described in this application may include mobile terminals such as mobile phones, tablet computers, laptop computers, PDAs, portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminals such as digital TVs and desktop computers.

[0061] The subsequent description will be illustrated by taking a smart terminal as an example, and those skilled in the art will understand that, in addition to components specifically used for mobile purposes, the construction according to the embodiments of the present application can also be applied to fixed-type terminals.

[0062] See also Figure 1 , Figure 1 To implement the hardware structure diagram of a smart terminal in each embodiment of the present application, the smart terminal 100 may include: RF (Radio Frequency) unit 101, WiFi module 102, audio output unit 103, A / V (audio / video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art can understand that Figure 1 The structure of the smart terminal 100 shown in the figure does not constitute a limitation on the smart terminal 100. The smart terminal 100 may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0063] Combine the following Figure 1 The various components of the intelligent terminal 100 are introduced in detail:

[0064] The radio frequency unit 101 can be used for receiving and sending signals during information transmission or communication. Specifically, after receiving the downlink information of the base station, it is sent to the processor 110 for processing; in addition, the uplink data is sent to the base station. Generally, the radio frequency unit 101 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc. In addition, the radio frequency unit 101 can also communicate with the network and other devices through wireless communication. The above-mentioned wireless communications can use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution) and 5G, etc.

[0065] WiFi is a short-range wireless transmission technology. The smart terminal 100 can help users send and receive emails, browse web pages, and access streaming media through the WiFi module 102. It provides users with wireless broadband Internet access. Figure 1 The WiFi module 102 is shown, but it is understandable that it is not a necessary component of the smart terminal 100 and can be omitted as needed without changing the essence of the invention.

[0066] The audio output unit 103 can convert the audio data received by the RF unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output it as sound when the smart terminal 100 is in a call signal receiving mode, a call mode, a recording mode, a voice recognition mode, a broadcast receiving mode, etc. Moreover, the audio output unit 103 can also provide audio output related to a specific function performed by the smart terminal 100 (for example, a call signal receiving sound, a message receiving sound, etc.). The audio output unit 103 may include a speaker, a buzzer, etc.

[0067] The A / V input unit 104 is used to receive audio or video signals. The A / V input unit 104 may include a graphics processor (GPU) 1041 and a microphone 1042, and the graphics processor 1041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The processed image frame can be displayed on the display unit 106. The image frame processed by the graphics processor 1041 can be stored in the memory 109 (or other storage medium) or sent via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sound (audio data) via the microphone 1042 in a telephone call mode, a recording mode, a voice recognition mode, and other operating modes, and can process such sound into audio data. The processed audio (voice) data can be converted into a format output that can be sent to a mobile communication base station via the radio frequency unit 101 in the case of a telephone call mode. The microphone 1042 can implement various types of noise elimination (or suppression) algorithms to eliminate (or suppress) noise or interference generated in the process of receiving and sending audio signals.

[0068] The smart terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor. Optionally, the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 1061 and / or the backlight when the smart terminal 100 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that identify the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors that can also be configured on the mobile phone, such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., they will not be repeated here.

[0069] The display unit 106 is used to display information input by the user or information provided to the user. The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0070] The user input unit 107 can be used to receive input digital or character information, and to generate key signal input related to the user settings and function control of the mobile terminal. Optionally, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also known as a touch screen, can collect the user's touch operation on or near it (such as the user's operation on the touch panel 1071 or near the touch panel 1071 using any suitable object or accessory such as a finger, stylus, etc.), and drive the corresponding connection device according to a pre-set program. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Optionally, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, transforms it into the touch point coordinates, and then sends it to the processor 110, and can receive and execute the command sent by the processor 110. In addition, the touch panel 1071 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel 1071, the user input unit 107 may further include other input devices 1072. Optionally, the other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, a function key (such as a volume control key, a switch key, etc.), a trackball, a mouse, a joystick, etc., which are not specifically limited here.

[0071] Optionally, the touch panel 1071 may cover the display panel 1061. When the touch panel 1071 detects a touch operation on or near it, it transmits the information to the processor 110 to determine the type of touch event. Then, the processor 110 provides corresponding visual output on the display panel 1061 according to the type of touch event. Figure 1 In the figure, the touch panel 1071 and the display panel 1061 are used as two independent components to implement the input and output functions of the mobile terminal. However, in some embodiments, the touch panel 1071 and the display panel 1061 can be integrated to implement the input and output functions of the mobile terminal, which is not limited here.

[0072] The interface unit 108 is used as an interface through which at least one external device can be connected to the smart terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, etc. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the smart terminal 100 or may be used to transmit data between the smart terminal 100 and an external device.

[0073] The memory 109 can be used to store software programs and various data. The memory 109 can mainly include a program storage area and a data storage area. Optionally, the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory 109 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0074] The processor 110 is the control center of the mobile terminal. It uses various interfaces and lines to connect various parts of the entire mobile terminal. It executes various functions of the mobile terminal and processes data by running or executing software programs and / or modules stored in the memory 109, and calling data stored in the memory 109, so as to monitor the mobile terminal as a whole. The processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor and a modem processor. Optionally, the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 110.

[0075] The intelligent terminal 100 may also include a power supply 111 (such as a battery) for supplying power to various components. Preferably, the power supply 111 may be logically connected to the processor 110 via a charging management module, thereby managing charging, discharging, and power consumption through the charging management module.

[0076] although Figure 1 Not shown, the smart terminal 100 may also include a Bluetooth module, etc., which will not be described in detail here.

[0077] To facilitate understanding of the embodiments of the present application, the communication network system on which the smart terminal 100 of the present application is based is described below.

[0078] See also Figure 2 , Figure 2 A communication network system architecture diagram is provided for an embodiment of the present application, wherein the communication network system is an LTE system of universal mobile communication technology, and the LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203 and an operator's IP service 204, which are connected in sequence for communication.

[0079] Optionally, UE201 may be the above-mentioned smart terminal 100, which will not be described in detail here.

[0080] E-UTRAN 202 includes eNodeB 2021 and other eNodeBs 2022 , etc. Optionally, eNodeB 2021 may be connected to other eNodeBs 2022 via a backhaul (eg, an X2 interface), and eNodeB 2021 is connected to EPC 203 , and eNodeB 2021 may provide UE 201 with access to EPC 203 .

[0081] EPC203 may include MME (Mobility Management Entity) 2031, HSS (Home Subscriber Server) 2032, other MMEs 2033, SGW (Serving Gate Way) 2034, PGW (PDN Gate Way) 2035 and PCRF (Policy and Charging Rules Function) 2036, etc. Optionally, MME 2031 is a control node that processes signaling between UE 201 and EPC 203, and provides bearer and connection management. HSS 2032 is used to provide some registers to manage functions such as home location register (not shown in the figure), and store some user-specific information such as service features and data rates. All user data can be sent through SGW2034, PGW2035 can provide IP address allocation and other functions for UE 201, PCRF2036 is the policy and charging control policy decision point for service data flow and IP bearer resources, which selects and provides available policy and charging control decisions for the policy and charging execution function unit (not shown in the figure).

[0082] The IP service 204 may include the Internet, an intranet, an IMS (IP Multimedia Subsystem) or other IP services.

[0083] Although the above introduction takes the LTE system as an example, those skilled in the art should know that the present application is not only applicable to the LTE system, but also to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, 5G and future new network systems (such as 6G), etc., without limitation here.

[0084] Based on the above-mentioned hardware structure of the smart terminal 100 and the communication network system, various embodiments of the present application are proposed.

[0085] First embodiment

[0086] Reference Figure 3 , Figure 3 1 is a flow chart of the charging method according to the first embodiment. Optionally, the charging method of the embodiment of the present application can be applied to the above-mentioned smart terminal 100. Optionally, the execution subject of the charging method of the embodiment of the present application can be a charging management module in the smart terminal 100, and of course, it can also be a module used in the smart terminal 100 to implement similar functions, such as the processor 110, etc. This embodiment uses the charging management module for illustration, but is not limited to this.

[0087] Optionally, the charging management module in this embodiment can be connected to a power adapter and a load of the smart terminal respectively; the above-mentioned power adapter can convert the electric energy provided by the AC power into the electric energy required by the charging management module, and then transmit it to the charging management module so that the charging management module can charge the load. The load in this embodiment can be the power supply 111 (such as a battery) in the smart terminal 100, etc. This embodiment uses a battery for illustration.

[0088] Optionally, in some solutions, in order to ensure charging safety, the charging management module needs to obtain the path impedance between the power adapter (i.e., charger), and then determine the safe upper limit charging power for charging based on the path impedance. In order to obtain the path impedance between the power adapter and the charging management module, it is generally necessary to rely on a power adapter with a collection function to transmit the collected voltage value to the charging management module. Figure 4 , Figure 4 Schematic diagram of the principle of the path impedance of this embodiment. Figure 4 As shown, one end of the power adapter is connected to the mains ( Figure 4 The other end receives electrical energy through the output pin of the power adapter (not shown). Figure 4 Vbus1) and the input pin of the charging management module (i.e. Figure 4 Vbus2) connection, the ground pin of the power adapter (i.e. Figure 4 GND1) and the ground pin of the charging management module (i.e. Figure 4 After the power adapter converts the electric energy, it can convert the converted electric energy (i.e. Figure 4Vout) is output to the charging management module. Since there is a path impedance in the loop between the power adapter and the charging management module, in this embodiment, the impedance between the output pin of the power adapter and the input pin of the charging management module is recorded as R1, and the impedance between the ground pin of the power adapter and the ground pin of the charging management module is recorded as R2. When charging, it is necessary to consider the influence of the impedances R1 and R2. When determining the path impedance between the power adapter and the charging management module, it is generally necessary to rely on a power adapter with a collection function to collect the output voltage value and transmit it to the charging management module, and then the charging management module collects the charging current by itself, and charges after calculating the path impedance. As a result, if the power adapter does not have a collection function, the charging management module cannot obtain the path impedance, and there may be a risk of exceeding the upper limit during charging, and the safety is poor.

[0089] In order to solve the above problems, this embodiment provides a charging method, which can first determine or generate the charging voltage of the first electric energy under the charging current, determine the path impedance according to the charging voltage and the charging current, and then determine or generate the charging power threshold based on the path impedance, and charge according to the charging power threshold. Through the above technical solution, the smart terminal can obtain the path impedance and set the corresponding charging power threshold for charging, effectively preventing the risk of exceeding the upper limit during charging, and improving the charging safety.

[0090] The specific implementation of this embodiment is described below. Figure 3 As shown, in this embodiment, the above method includes:

[0091] Step S10: determining or generating a charging voltage corresponding to the first electric energy under the charging current.

[0092] Optionally, the first electric energy may be electric energy transmitted from the power adapter to the charging management module to charge the load. The charging current may be a current value corresponding to the first electric energy. In this embodiment, the charging management module may have a function of controlling the current size of the received first electric energy, thereby making the charging current size of the first electric energy output by the power adapter different.

[0093] Reference Figure 5 , Figure 5 FIG. 1 is a schematic diagram of the structure of the charging system in the charging method shown in the first embodiment. Figure 5 As shown, in this embodiment, the power adapter may be a power adapter without a collection function, and the charging management module and Figure 4 The connection relationship between the power adapter and the charging management module is consistent with that shown in Figure 4 It is consistent with what is shown in , and this embodiment will not be elaborated on. In this embodiment, the first electric energy is the electric energy output by the power adapter.

[0094] Optionally, the charging voltage may be a voltage corresponding to the first electric energy when the first electric energy is received at different charging currents. In order to collect the charging voltage, a collection module may be provided in the charging management module in this embodiment. The collection module may be a module with a voltage collection function, such as an analog-to-digital converter (ADC), etc. The voltage of the first electric energy may be collected through the collection module to obtain the corresponding charging voltage under different charging currents.

[0095] Optionally, in order to enable the charging management module to receive the first electric energy according to different charging currents, continue as follows Figure 5 As shown, in this embodiment, before step S10, the method further includes: when different upper limit signals are received, determining or generating a charging current according to each upper limit signal.

[0096] Optionally, the intelligent terminal further includes: a main control module, the main control module is connected to the charging management module; the main control module may be a module composed of components such as a microcontroller unit (MCU) or a central processing unit (CPU), and this embodiment does not limit this. The upper limit signal may be a signal for controlling the charging current received by the charging management module.

[0097] In this embodiment, the main control module can control the current value of the first electric energy received by the charging management module. In order to achieve control, the charging management module can be composed of a switch charging integrated circuit (IC) with an adaptive current input (Adaptive Input Current Regulation, AICR) function. In actual use, the main control module can generate different upper limit signals and transmit them to the charging management module. The charging management module can determine or generate a corresponding current value according to each upper limit signal, and then the input pin (i.e. Figure 5 Vbus2) can receive the first electric energy according to the current value, thereby obtaining the charging current under different first currents.

[0098] For the convenience of subsequent description, in this embodiment, the charging management module adopts a switch charging IC. Figure 6 , Figure 6 FIG. 1 is a schematic diagram of an implementation mode of a charging system in a charging method shown in the first embodiment, such as Figure 6As shown, the acquisition module can be arranged inside the charging management module, that is, a switch charging IC with a voltage acquisition function is used, and the ADC in the switch charging IC is the acquisition module. The input end of the ADC is respectively connected to the Vbus2 pin and the GND2 pin of the switch charging IC. The first communication pin of the switch charging IC (i.e. Figure 5 SDA) and the first communication pin of the main control module (i.e. Figure 5 SDA connection), the second communication pin of the switch charging IC (i.e. Figure 5 SCL) and the second communication pin of the main control module (i.e. Figure 5 SCL) connection.

[0099] Furthermore, in actual use, the main control module can output different upper limit signals and transmit the upper limit signals to the charging management module through the first communication pin and the second communication pin. The charging management module can control the reception of different charging currents and collect the voltage value of the received first electric energy through the acquisition module to obtain the above-mentioned different charging voltages.

[0100] Optionally, the number of the above-mentioned charging currents may be the same as the number of charging voltages, and each charging current corresponds to each charging voltage, that is, when a charging current is received, a charging voltage is collected. Furthermore, the number of the above-mentioned upper limit signals may also be the same as the number of charging currents, that is, one upper limit signal corresponds to one charging current.

[0101] Step S20: determining the path impedance according to the charging current and the charging voltage.

[0102] After obtaining each charging current and the corresponding charging voltage, the path impedance between the power adapter and the switch charging IC can be calculated according to Ohm's law, that is, Figure 6 The sum of the impedances of R1 and R2.

[0103] Optionally, in order to reduce the amount of calculation, this embodiment uses two charging currents and two charging voltages for illustration, specifically: the charging current may include at least a first charging current and a second charging current, and the charging voltage may include at least a first charging voltage corresponding to the first charging current and a second charging voltage corresponding to the second charging current; and in this embodiment, the above-mentioned first charging current is recorded as Ilmt1, the above-mentioned second charging current is recorded as Ilmt2, the first charging voltage corresponding to the first charging current is recorded as Vin1, and the second charging voltage corresponding to the second charging current is recorded as Vin2, and then the above-mentioned path impedance R1+R2 can be obtained according to Ohm's law, that is, R1+R2=|Vin2-Vin1| / |Ilmt2-Ilmt1|.

[0104] Step S30: determining a charging power threshold based on the path impedance, and charging according to the charging power threshold.

[0105] Optionally, the charging power threshold may be a safe upper power limit when charging the smart terminal through a power adapter. After obtaining the path impedance, the charging management module can obtain the upper limit of the charging current flowing through the charging circuit, thereby calculating the charging power threshold. In subsequent charging, the charging management module can calculate the current charging power in real time based on the current charging current and path impedance, and compare it with the above charging power threshold to determine whether it is safe at present, thereby effectively preventing the risk of exceeding the upper limit during charging and improving safety.

[0106] Optionally, when the charging management module in this embodiment has a calculation function, the charging management module can obtain each first charging current and each first charging voltage, and calculate the path impedance according to each first charging current and each first charging voltage, and then set the charging power threshold according to the path impedance. If the main control module has a calculation function, the charging management module can transmit each first charging current and each first charging voltage to the main control module, and after the main control module calculates the path impedance, the charging power threshold is determined according to the path impedance and transmitted to the charging management module. Of course, in this embodiment, the main control module and the charging management module can also be integrated.

[0107] Optionally, in order to collect power after the power adapter outputs power, continue as follows Figure 5 as well as Figure 6 As shown, in this embodiment, a communication module may also be provided in the intelligent terminal; the communication module is connected to the power adapter and the main control module respectively;

[0108] Optionally, after the above step of determining or generating the charging current according to each upper limit signal, the method further includes: transmitting the output signal generated by the main control module to the power adapter through the communication module, so that the power adapter outputs the first electric energy.

[0109] Optionally, the power adapter in this embodiment may adopt a programmable power supply (PPS), and the communication module may adopt a module composed of a configuration channel (CC) logic control chip, that is, a module composed of CC-Logic. Of course, other components that realize the same or similar functions may also be used, and this embodiment does not limit this.

[0110] For the convenience of subsequent explanation, the above communication module is explained using CC-Logic. Figure 6As shown, CC-Logic and the main control module can communicate through the Internet integrated circuit (Inter-Integrated Circuit, I2C) protocol; the output pin of the CC-Logic can be connected to the communication pin of the power adapter (i.e. Figure 3 The CC) connection can then enable communication between CC-Logic and the power adapter, allowing the power adapter to enter the PPS protocol.

[0111] Optionally, after the charging management module determines the corresponding different charging currents, the main control module can generate an output signal and transmit it to the power adapter through CC-Logic. After receiving the output signal, the power adapter can enter the PPS protocol and start outputting the first electrical energy to the charging management module. The charging management module then starts receiving the first electrical energy according to the set different first charging currents.

[0112] Optionally, considering that some charging management modules do not have a collection module, this embodiment may also set an additional collection module in the smart terminal, referring to Figure 7 as well as Figure 8 , Figure 7 FIG. 1 is another structural schematic diagram of the charging system in the charging method shown in the first embodiment, Figure 8 This is a schematic diagram of another implementation of the charging system in the charging method shown in the first embodiment.

[0113] like Figure 7 as well as Figure 8 As shown, in this embodiment, the intelligent terminal further includes a collection module; the collection module is connected to the charging management module and the power adapter respectively. Optionally, the step of obtaining the charging voltage corresponding to the first electric energy under the charging current includes: when receiving the collection result output by the collection module, obtaining the charging voltage corresponding to the first electric energy under the charging current according to the collection result, and the collection result is obtained by the collection module collecting the charging voltage.

[0114] Optionally, the above acquisition module can still be a module with voltage acquisition function. Figure 7 As shown, the input end of the acquisition module can be connected closely to the input pin and the ground pin of the charging management module, so that the charging voltage of the collected first electric energy can be Figure 4 The output end of the acquisition module can be connected to the loop between the charging management module and the main control module, and then the acquired charging voltage can be transmitted to the charging management module and the main control module.

[0115] like Figure 8 As shown, since the charge pump has the voltage acquisition function (i.e. Figure 8In the ADC, the acquisition module of this embodiment can be described by using a charge pump, and then the input pin of the charge pump (i.e. Figure 8 Vbus3) and the input pin of the switch charging IC (i.e. Figure 8 Vbus2) and connect the charge pump ground pin (i.e. Figure 8 GND3) and the ground pin of the switch charging IC (i.e. Figure 8 The ADC is set inside the charge pump and connected to the input pin and the ground pin of the charge pump respectively. At the same time, the first communication pin of the charge pump (i.e. Figure 8 SDA) and the first communication pin of the main control module (i.e. Figure 8 SDA) connected to the charge pump's second communication pin (i.e. Figure 8 SCL) and the second communication pin of the main control module (i.e. Figure 8 SCL) connection, and the rest of the connections are the same as Figure 6 The same is true and will not be elaborated here.

[0116] Optionally, the power adapter can output a first electrical energy to the switching charging IC. At this time, the main control module can control the switching charging IC through the SDA pin and the SCL pin to receive electrical energy according to the size of the first charging current, and then obtain the corresponding acquisition result through the ADC acquisition in the charge pump. The main control module can then control the switching charging IC through the SDA pin and the SCL pin to receive electrical energy according to the size of the second charging current, and then obtain the corresponding acquisition result through the ADC acquisition in the charge pump. Finally, the acquisition result is transmitted to the charging management module, and the charging management module can obtain the first charging voltage and the second charging voltage according to the acquisition result.

[0117] Optionally, if the calculation is performed by the main control module, the collection result may be transmitted to the main control module to obtain the first charging voltage and the second charging voltage.

[0118] Second embodiment

[0119] Reference Fig. 9 , Fig. 9 is a flow chart of a charging method according to a second embodiment. In this embodiment, in order to ensure that the charging management module operates at full current, even if the received charging current reaches the first charging current and the second charging current, as Fig. 9 As shown, the step of receiving the first electric energy includes:

[0120] Step S11: determining or generating a target current corresponding to the charging current according to different received signals;

[0121] Step S12: When the target current is greater than or equal to the charging current, receiving the first electric energy.

[0122] Optionally, the above-mentioned receiving signal can be a signal that enables the charging management module to receive according to the target current. If the target current is recorded as Ichg, in this embodiment, the above-mentioned main control module can pre-store a target current that is not lower than the first charging current and the second charging current, and after sending the first upper limit signal to the charging management module, the charging management module can set the upper limit of the receiving current to Ilmt1 at this time, and the main control module then generates a receiving signal according to the target current and transmits it to the charging management module. After receiving the receiving signal, the charging management module can set the target current to be received to Ichg, and at this time Ichg is not lower than Ilmt1, so that the charging management module can operate at full current to ensure that the current of the received electric energy reaches Ilmt1; similarly, after sending the second upper limit signal to the charging management module, the charging management module can set the upper limit of the receiving current to Ilmt2 at this time, and the main control module transmits the receiving signal to the charging management module, and the charging management module can set the target current to be received to Ichg, and at this time Ichg is not lower than Ilmt2, so that the charging management module can operate at full current to ensure that the current of the received electric energy reaches Ilmt2.

[0123] Optionally, at least one of the charging currents is 0;

[0124] Optionally, when a high impedance signal is received, the charging current is set to 0.

[0125] Optionally, in this embodiment, at least one of the charging currents may be set to 0, but it is also necessary to ensure that at least one is set to non-0. Continuing to explain based on the above-mentioned first charging current and second charging current, in this embodiment, the first charging current or the second charging current may be set to 0, and the remaining charging current may be non-0. And the path impedance can still be calculated by the above-mentioned Ohm's law.

[0126] Optionally, in order to enable the charging management module to set the charging current to 0, it can be set through a high-impedance signal. Specifically, before the above-mentioned step of obtaining the charging voltage corresponding to the first electric energy under the charging current, it also includes: when the high-impedance signal is received, the charging current is set to 0.

[0127] Optionally, the high impedance signal can be a signal that causes the charging management module to enter a high impedance mode. Continuing with the switch charging IC, and setting the first charging current to 0 for explanation, in this embodiment, the switch charging IC can also support a high impedance mode, that is, the main control module can generate a high impedance signal and transmit it to the switch charging IC. After receiving the high impedance signal, the switch charging IC can switch to a high impedance mode, that is, at this time, the first charging current received by the switch charging IC is 0, and the charge pump is turned off by the main control module. At this time, the corresponding first charging voltage Vin1 is collected by the acquisition module; then the main control module generates a second upper limit signal to the switch charging IC, so that the switch charging IC sets the upper limit of the received current to Ilmt2, and the main control module transmits the received signal to the charging management module. The charging management module can set the target current to be received to Ichg, and at this time, Ichg is not lower than Ilmt2, so that the charging management module can run at full current, then R1+R2=|Vin2-Vin1| / |Ilmt2|.

[0128] Optionally, the first charging current received by the switch charging IC may be Ilmt1, and the first charging voltage at this time may be Vin1, and then the switch charging IC may be set to a high impedance state, and the second charging voltage at this time may be Vin2, and then R1+R2=|Vin2-Vin1| / |-Ilmt1|.

[0129] In this embodiment, the main control module can control the charging management module to receive different charging currents of electric energy, and then collect different charging voltages of electric energy through the acquisition module and transmit them to the main control module. Finally, the main control module determines the path impedance between the power adapter and the charging management module according to each charging current and each charging voltage. As a result, the user can obtain the impedance between the power adapter and the charging management module when using a power adapter without an acquisition function, thereby effectively improving the user experience.

[0130] Optionally, since this embodiment does not need to use a power adapter with a data collection function, the cost is relatively low.

[0131] Optionally, considering that during charging, in order to protect the battery from overcharging or overdischarging, a threshold voltage is generally set, and in order to obtain the threshold voltage, refer to Fig.10 , Fig.10 FIG. 1 is a schematic diagram of the structure of the charging system in the second embodiment. Fig.10 As shown, in this embodiment, the charging management module and the power adapter are also connected to an auxiliary power supply;

[0132] Optionally, the auxiliary power supply may be any power supply for providing electric energy, which is not limited in this embodiment. The ground impedance may be the impedance of the ground loop between the charging management module and the power adapter, that is, ( Fig.10 (middle R2).

[0133] Optionally, in this embodiment, the threshold voltage can be determined according to the ground impedance. Furthermore, in this embodiment, if the charging management module has a collection function, the output pin of the auxiliary power supply (i.e. Fig.10 DP1) can be connected to the input pin of the charging management module (i.e. Fig.10 The Vbus2 in the figure can be connected, which can be set close to the input pin of the charging management module, and the ground pin of the auxiliary power supply (i.e. Fig.10 GND4) can be connected to the ground pin of the power adapter (i.e. Fig.10 The auxiliary power supply is set at one end close to the power adapter, and the rest of the connections are connected to the GND1 in the figure. Figure 6 This is consistent with the embodiment, and this embodiment will not be described in detail.

[0134] Step S30 includes:

[0135] Step S31: receiving second electric energy, and determining or generating an auxiliary voltage corresponding to the second electric energy;

[0136] Step S32: determining or generating a ground impedance according to the auxiliary voltage.

[0137] Optionally, the second electric energy may be the electric energy output by the auxiliary power supply. The auxiliary current may be the current value corresponding to the second electric energy. The auxiliary voltage may be the voltage value corresponding to the second electric energy. In this embodiment, the power adapter may be controlled not to output the first electric energy, and the auxiliary power supply may output the second electric energy, and the second electric energy may be transmitted to the charging management module after passing through the impedance R2.

[0138] Before the charging management module receives the second electric energy, the main control module can also be used to set the charging management module to receive the second electric energy according to different auxiliary currents, and the acquisition module in the charging management module can perform voltage acquisition to obtain the auxiliary voltage corresponding to each different auxiliary current.

[0139] Then the ground impedance can be calculated according to Ohm's law. Similar to the above-mentioned process of determining the path impedance, in this embodiment, the number of auxiliary currents and auxiliary voltages can be set to multiple, and this embodiment also uses two for illustration, namely, the first auxiliary current, the second auxiliary current, the first auxiliary voltage, and the second auxiliary voltage; illustratively, the auxiliary power supply is normally powered, and the main control module can also first transmit the generated upper limit signal to the charging management module, and the charging management module sets the first auxiliary current Ilmt1 and the second auxiliary current Ilmt2 according to the upper limit signal. At the same time, the main control module can output a receiving signal to the charging management module, and the charging management module sets the corresponding target current Ichg to allow it to operate at full current.

[0140] Then, a first auxiliary voltage corresponding to the first auxiliary current Ilmt1 is acquired and recorded as Vdp1, and a second auxiliary voltage corresponding to the second auxiliary current Ilmt2 is acquired and recorded as Vdp2, and then R2 = |Vdp2-Vdp1| / |Ilmt2-Ilmt1|.

[0141] Step S33: determining or generating a threshold voltage based on the ground impedance, and determining or generating a charging power threshold based on the path impedance;

[0142] Step S34: Charging is performed according to the charging power threshold and the threshold voltage.

[0143] After obtaining the above ground impedance, the threshold voltage can be obtained according to the ground impedance, which can be obtained by querying the preset mapping relationship, or by other methods, which are not limited in this embodiment. After obtaining the threshold voltage, the charging power threshold can be determined in combination with the previously determined path impedance, and charging can be performed together with the threshold voltage and the charging power threshold, thereby further improving safety.

[0144] Optionally, Fig.10 The auxiliary power supply shown in the figure is set outside the power adapter. Of course, in this embodiment, the auxiliary power supply can also be set inside the power adapter. Fig.10 The acquisition module can also be set inside the charging management module, and of course it can also be set outside the charging management module, refer to Fig.11 , Fig.11 FIG. 4 is another structural schematic diagram of the charging system in the second embodiment.

[0145] like Fig.11 As shown, the ADC in the charge pump is used as the acquisition module, the switch charging IC is used as the charging management module, and the CC-Logic is used as the communication module. Fig.11 Us) is set inside the power adapter, so that the ground pin of the auxiliary power Us and the ground pin of the power adapter can share a pin (i.e. Fig.11 GND1), the output pin of the auxiliary power supply Us (i.e. Fig.11 DP in the charge pump) and the input pin of the charge pump (i.e. Fig.11 The rest are connected to Vbus3 Figure 8 This embodiment is consistent and will not be described in detail in this embodiment.

[0146] Furthermore, in actual use, the main control module can generate an auxiliary power output signal and transmit it to the power adapter through the communication module. At this time, the auxiliary power supply of the power adapter can be controlled to output the second electric energy. The acquisition module collects the auxiliary voltage of the second electric energy under different auxiliary currents and transmits it to the charging management module and the main control module. The main control module or the charging management module can then perform calculations.

[0147] It should also be emphasized that this embodiment is consistent with the above, and at least one of the auxiliary currents can be set to 0, and at least one auxiliary current is ensured to be non-zero. The specific process can refer to the above process of calculating the path impedance, and this embodiment will not elaborate on this.

[0148] Third embodiment

[0149] Based on the above embodiments, a third embodiment of the present application is proposed.

[0150] In this embodiment, a charging management module is provided, and the charging management module includes:

[0151] A voltage acquisition unit, used to determine or generate a charging voltage corresponding to the first electric energy under the charging current;

[0152] An impedance determination unit, used for determining a path impedance according to a charging current and a charging voltage;

[0153] The threshold determination unit is used to determine or generate a charging power threshold based on the path impedance, and to charge according to the charging power threshold.

[0154] As an implementation manner, the voltage acquisition unit is further configured to determine or generate a charging current according to the upper limit signal when receiving different upper limit signals.

[0155] As an implementation mode, the voltage acquisition unit is further used to determine or generate a target current corresponding to the charging current according to different received signals; and receive the first electric energy when the target current is greater than or equal to the charging current.

[0156] As an implementation mode, at least one of the charging currents is 0; or,

[0157] The voltage acquisition unit is further used to set the charging current to 0 when receiving a high impedance signal.

[0158] As an embodiment, the threshold determination unit is also used to receive the second electric energy, determine or generate an auxiliary voltage corresponding to the second electric energy; determine or generate the grounding impedance according to the auxiliary voltage; determine or generate the threshold voltage based on the grounding impedance, and determine or generate the charging power threshold based on the path impedance; and charge according to the charging power threshold and the threshold voltage.

[0159] In the embodiment of the charging management module provided in the present application, all technical features of any of the above-mentioned charging method embodiments may be included, and the expanded and explained contents of the specification are basically the same as those of the embodiments of the above-mentioned methods, and will not be repeated here.

[0160] Optionally, to achieve the above-mentioned purpose, an embodiment of the present application further proposes a smart terminal, which includes: a memory and a processor, wherein a charging program is stored in the memory, and when the processing program is executed by the processor, the steps of the charging method as described above are implemented.

[0161] Optionally, the processor may be a processor in a charging management module, or may be other processors that implement the same function, which is not limited in this embodiment.

[0162] In the embodiment of the smart terminal provided in the present application, all technical features of any of the above-mentioned charging method embodiments may be included, and the expansion and explanation content of the specification are basically the same as those of the embodiments of the above-mentioned method, and will not be repeated here.

[0163] Optionally, to achieve the above purpose, an embodiment of the present application further provides a charging system, the charging system comprising: a power adapter and the above-mentioned smart terminal;

[0164] The processor of the smart terminal is connected to the power adapter and the load of the smart terminal respectively;

[0165] A power adapter, used for outputting a first electric energy;

[0166] a processor, configured to determine or generate a charging voltage corresponding to the first electric energy under a charging current;

[0167] The processor is further used to determine the path impedance according to the charging current and the charging voltage; and determine the charging power threshold based on the path impedance, and charge the load according to the charging power threshold.

[0168] As an implementation manner, the processor is further configured to determine or generate a charging current according to the upper limit signal when receiving different upper limit signals.

[0169] As an implementation mode, the processor is further used to determine or generate a target current corresponding to the charging current according to different received signals; when the target current is greater than or equal to the charging current, receive the first electric energy.

[0170] As an implementation mode, at least one of the charging currents is 0; or,

[0171] The processor is further configured to set the charging current to 0 when receiving a high impedance signal.

[0172] As an implementation method, the charging system further includes: an auxiliary power supply;

[0173] The auxiliary power supply is connected to the processor and the power adapter respectively;

[0174] An auxiliary power supply, used for outputting a second electric energy;

[0175] The processor is also used to receive the second electric energy, determine or generate an auxiliary voltage corresponding to the second electric energy; determine or generate a ground impedance based on the auxiliary voltage; determine or generate a threshold voltage based on the ground impedance, and determine or generate a charging power threshold based on the path impedance; and charge according to the charging power threshold and the threshold voltage.

[0176] Since other embodiments and specific implementation methods of the charging system in this embodiment can refer to the above-mentioned embodiment of the smart terminal, they are not described here in detail.

[0177] It is understood that the above scenarios are only examples and do not constitute a limitation on the application scenarios of the technical solutions provided in the embodiments of the present application. The technical solutions of the present application can also be applied to other scenarios. For example, it is known to those skilled in the art that with the evolution of the system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0178] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0179] The steps in the method of the embodiment of the present application can be adjusted in order, combined and deleted according to actual needs.

[0180] The units in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0181] In the present application, the same or similar terminology concepts, technical solutions and / or application scenario descriptions are generally described in detail only the first time they appear. When they appear again later, they are generally not repeated for the sake of brevity. When understanding the technical solutions and other contents of the present application, for the same or similar terminology concepts, technical solutions and / or application scenario descriptions that are not described in detail later, reference can be made to the previous related detailed descriptions.

[0182] In the present application, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0183] The various technical features of the technical solution of the present application can be combined arbitrarily. In order to make the description concise, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of the present application.

[0184] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as above, and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, a controlled terminal, or a network device, etc.) to execute the method of each embodiment of the present application.

[0185] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loading and executing computer program instructions on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. Computer instructions can be stored in a storage medium, or transmitted from one storage medium to another storage medium. For example, computer instructions can be transmitted from a website site, computer, server or data center to another website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) mode. The storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integration. Available media can be magnetic media, (e.g., floppy disk, storage disk, tape), optical media (e.g., DVD), or semiconductor media (e.g., solid-state storage disk Solid State Disk (SSD)), etc.

[0186] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A charging method, characterized in that: The following steps are involved: S10: Determine or generate a charging voltage corresponding to the first electric energy under the charging current; S20: determining a path impedance according to the charging current and the charging voltage; S30: Determine or generate a charging power threshold based on the path impedance, and perform charging according to the charging power threshold.

2. The method according to claim 1, characterized in that Before step S10, the method further includes: When different upper limit signals are received, the charging current is determined or generated according to the upper limit signals.

3. The method according to claim 2, characterized in that Before step S10, the method further includes: Determine or generate a target current corresponding to the charging current according to different received signals; When the target current is greater than or equal to the charging current, the first electric energy is received.

4. The method according to claim 3, characterized in that At least one of the charging currents is 0; or, When a high impedance signal is received, the charging current is set to 0.

5. The method according to any one of claims 1 to 4, characterized in that The step S30 includes: receiving second electric energy, and determining or generating an auxiliary voltage corresponding to the second electric energy; determining or generating a ground impedance based on the auxiliary voltage; determining or generating a threshold voltage based on the ground impedance, and determining or generating a charging power threshold based on the path impedance; Charging is performed according to the charging power threshold and the threshold voltage.

6. A charging management module, characterized in that: include: A voltage acquisition unit, used to determine or generate a charging voltage corresponding to the first electric energy under the charging current; An impedance determination unit, configured to determine a path impedance according to a charging current and the charging voltage; A threshold determination unit is used to determine or generate a charging power threshold based on the path impedance, and to perform charging according to the charging power threshold.

7. An intelligent terminal, characterized in that: include: A memory and a processor, wherein a charging program is stored in the memory, and when the processing program is executed by the processor, the steps of the charging method according to any one of claims 1 to 5 are implemented.

8. A charging system, characterized in that: It comprises a power adapter and the intelligent terminal as claimed in claim 7.

9. The charging system according to claim 8, characterized in that: The processor of the smart terminal is connected to the power adapter and the load of the smart terminal respectively; The power adapter is used to output the first electric energy; The processor is used to determine or generate a charging voltage corresponding to the first electric energy under a charging current; The processor is further configured to determine a path impedance according to the charging current and the charging voltage; and determine a charging power threshold based on the path impedance, and charge the load according to the charging power threshold.

10. The charging system according to claim 9, characterized in that: The charging system also includes an auxiliary power supply; The auxiliary power supply is connected to the processor and the power adapter; The auxiliary power supply is used to output the second electric energy; The processor is further configured to receive the second electric energy, determine or generate an auxiliary voltage corresponding to the second electric energy; and determine or generate a ground impedance according to the auxiliary voltage; A threshold voltage is determined or generated based on the ground impedance, and a charging power threshold is determined or generated based on the path impedance; and charging is performed according to the charging power threshold and the threshold voltage.

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