CN108988421A - A kind of charging method of battery, charging circuit and terminal - Google Patents

Abstract

The embodiment of the invention provides a kind of charging method of battery, charging circuit and terminals, the terminal includes at least two batteries, the battery includes the first battery and the second battery, the described method includes: detecting the second battery information of second battery in first battery and the second battery serial connection charge；The first battery information of anticipation of first battery is determined according to second battery information；When the first battery information of the anticipation meets preset condition, the first battery information of first battery is detected；Determine whether equilibrium is equalized judgement result for first battery and second battery according to first battery information and second battery information；Charging scheme is determined according to the balanced judgement result, and is charged using the charging scheme to the battery.Using the embodiment of the present invention, the safety for selecting suitable charging scheme to guarantee internal circuit configuration still is able in battery serial connection charge.

Description

Battery charging method, charging circuit and terminal

technical field

Embodiments of the present invention relate to the field of communication technologies, and in particular, to a battery charging method, a charging circuit, and a terminal.

Background technique

With the development of the power supply industry, it is more common to use multiple batteries in combination. The mixed use of batteries needs to solve the problem of battery balancing, which requires the acquisition of battery information. Communication, and communication between battery detection modules is becoming more and more complex.

The current related technical solutions are all based on the same "ground". When the batteries are used in series, the communication levels between the modules are different, and communication cannot be performed. When batteries are used in parallel, simple level conversion does not meet the requirements of mixed use. As a result, the information of multiple batteries cannot be accurately obtained by the terminal, and the balance of batteries cannot be accurately processed. So far, no solution has been found to accurately measure battery information in the case of mixed batteries.

Contents of the invention

An embodiment of the present invention provides a battery charging method to solve the problem of how to accurately measure battery information to select a suitable charging scheme when there are multiple batteries.

In order to solve the problems of the technologies described above, the present invention is achieved in that:

In a first aspect, an embodiment of the present invention provides a method for charging a battery, which is applied to a terminal. The terminal includes at least two batteries, and the batteries include a first battery and a second battery. The method includes:

Detecting second battery information of the second battery when the first battery and the second battery are being charged in series;

determining the predicted first battery information of the first battery according to the second battery information;

When the predicted first battery information meets a preset condition, detecting the first battery information of the first battery;

Determine whether the first battery and the second battery are balanced according to the first battery information and the second battery information to obtain a balanced judgment result;

A charging scheme is determined according to the balance determination result, and the battery is charged using the charging scheme.

In the second aspect, the embodiment of the present invention also provides a charging circuit, which is applied to a terminal, and the charging circuit includes:

Input interface, ground terminal, operation control unit and system;

At least two batteries, the battery includes a first battery and a second battery, the first battery has a corresponding first power detection module, and the second battery has a corresponding second power detection module; the first battery It is connected with the input interface, the first power detection module, the system, the ground terminal and the second battery, the second battery is connected with the second power detection module and the ground terminal, and the first power detection module and the second power detection module are connected with the The operation control unit is connected, and the system is connected to the ground terminal;

A plurality of switches, the plurality of switches are arranged between the input interface, the ground terminal, the first battery, the second battery, the first power detection module, the operation control unit and the system;

When the charging scheme is determined, the first battery and the second battery are controlled by the plurality of switches to perform battery charging according to the charging scheme.

In a third aspect, an embodiment of the present invention provides a terminal, the terminal includes at least two batteries, the batteries include a first battery and a second battery, and the terminal includes:

A second battery information detection module, configured to detect second battery information of the second battery when the first battery and the second battery are charged in series;

A predictive first battery information determination module, configured to determine the predictive first battery information of the first battery according to the second battery information;

A first battery information detection module, configured to detect the first battery information of the first battery when the predicted first battery information meets a preset condition;

A balance determination result obtaining module, configured to determine whether the first battery and the second battery are balanced to obtain a balance determination result according to the first battery information and the second battery information;

The first battery charging module is configured to determine a charging scheme according to the balance determination result, and use the charging scheme to charge the battery.

In a fourth aspect, an embodiment of the present invention provides a terminal, where the terminal has the above-mentioned charging circuit.

In the embodiment of the present invention, when the first battery and the second battery of the terminal are charged in series, the second battery information of the second battery can be detected, and then the predicted first battery information of the first battery can be obtained according to the second battery information, When the first battery information is predicted to meet the preset conditions, the first battery information of the first battery will be obtained, and then the first battery information and the second battery information will be compared to determine whether the two batteries are balanced, and the battery will be determined according to the balance judgment result. Choose an appropriate charging solution. Applying the embodiment of the present invention, when batteries are being charged in series, the power information of another battery can be calculated by means of calculation, so that an appropriate charging scheme can be selected according to the calculated power of the battery, so that charging of batteries in series can still Choose a suitable charging scheme to ensure the safety of the internal circuit structure.

Description of drawings

FIG. 1 is a flow chart of the steps of an embodiment of a battery charging method embodiment of the present invention;

FIG. 2 is a flow chart of steps in another embodiment of a battery charging method according to an embodiment of the present invention;

3 is a schematic structural diagram of a charging circuit according to an embodiment of the present invention;

FIG. 4 is a structural block diagram of a terminal embodiment of an embodiment of the present invention;

FIG. 5 is a schematic diagram of a hardware structure of a terminal according to an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Referring to FIG. 1 , it shows a flow chart of the steps of an embodiment of a battery charging method according to an embodiment of the present invention, which may specifically include the following steps:

Step 101, when the first battery and the second battery are charged in series, detect second battery information of the second battery.

At present, at least two battery combinations can be selected in the terminal for hybrid charging. In the embodiment of the invention, for the convenience of description, a combination of two batteries is used for illustration. The two batteries are respectively a first battery and a second battery.

The first battery has a corresponding first power detection module for detecting its first battery information, the second battery has a corresponding second power detection module for detecting its second battery information, and the first battery and the second battery are connected through a switch to the power detection module, and the power detection modules of the first battery and the second battery are respectively connected to the operation control unit, and the operation control unit can control the communication between the first battery and the first power detection module by controlling the on and off of different switches level to make it match or not match the communication level of the operation control unit.

Battery information includes power information. In the embodiment of the present invention, the first battery and the second battery can be charged in series or in parallel through a switch. Wherein, when the batteries are charged in series (communication levels do not match), the switch between the first power detection module and the operation control unit is disconnected, the first power detection module obtains the power information of the first battery by itself, and the second power detection module The power information of the second battery is then detected, and the power information detected by the second power detection module is sent to the calculation control unit.

Step 102: Determine the predicted first battery information of the first battery according to the second battery information.

When batteries are charged in series, in the same time period, the power flowing through the first battery and the second battery is proportional, so the calculation control unit can determine the predicted battery information of the first battery through the power information of the second battery .

Step 103, when the predicted first battery information satisfies a preset condition, detect the first battery information of the first battery.

In the embodiment of the present invention, if the predicted battery information of the first battery calculated by the operation control unit reaches the preset condition, the first battery can be connected The power information detected by the detection module is sent to the calculation control unit.

It should be noted that the preset conditions can be set according to actual needs. For example, it can be set that when the first battery is charged to 60%, it is determined to meet the preset conditions. Of course, it can also be set to other values such as charging to 80%. As a condition, the embodiment of the present invention does not impose any limitation on this.

Step 104, judge whether the first battery and the second battery are balanced according to the first battery information and the second battery information, and obtain a balance judgment result.

After the calculation and control unit obtains the power information of the first battery and the second battery, it can compare the information of the two batteries to determine whether the two batteries are balanced, and obtain a balanced judgment result according to the comparison. Among them, battery balancing means that the power difference between batteries is within a preset range, so as to ensure that each single battery maintains the same state during normal use, so as to avoid overcharging and overdischarging.

Step 105: Determine a charging scheme according to the balance determination result, and use the charging scheme to charge the first battery and the second battery.

After obtaining the balance determination result, an appropriate charging scheme can be selected according to the balance determination result to continue charging the battery.

In the embodiment of the present invention, when the first battery and the second battery of the terminal are charged in series, the second battery information of the second battery can be detected, and then the predicted first battery information of the first battery can be obtained according to the second battery information, When the first battery information is predicted to meet the preset conditions, the first battery information of the first battery will be obtained, and then the first battery information and the second battery information will be compared to determine whether the two batteries are balanced, and the battery will be determined according to the balance judgment result. Choose an appropriate charging solution. Applying the embodiment of the present invention, when batteries are being charged in series, the power information of another battery can be calculated by calculation, so that the appropriate power can be selected according to the calculated power of the battery. In this way, when the batteries are charged in series, the appropriate charging scheme can still be selected to ensure the safety of the internal circuit structure.

Referring to FIG. 2 , it shows a flow chart of the steps of another battery charging method embodiment of the embodiment of the present invention, which may specifically include the following steps:

Step 201, when the first battery and the second battery are charged in parallel, detect first battery information of the first battery and second battery information of the second battery.

In one embodiment, when the terminal is charging, that is, when the input level is connected to the input interface of the terminal, the battery of the terminal is charged in parallel at this time, and the power detection module starts to detect the battery information of its corresponding battery and sends it to the calculation control unit.

Step 202, determine whether the first battery and the second battery are balanced according to the first battery information and the second battery information.

After obtaining the first battery information and the second battery information, the calculation control unit will determine whether the first battery and the second battery are balanced based on the two data.

Step 203, if the first battery and the second battery are balanced, control the first battery and the second battery to be charged in series.

If it is determined that the two batteries are balanced based on the first battery information and the second battery information, the first battery and the second battery may be controlled to be charged in series. Of course, the first battery and the second battery can also be controlled or charged in parallel. Because of the faster charging speed in series, series charging is usually preferred.

In a preferred embodiment of the present invention, the controlling the series charging or parallel charging of the first battery and the second battery may include the following sub-steps:

When the first battery and the second battery are balanced and the terminal is connected to a standard charger, the first battery and the second battery are controlled to be charged in series.

In practice, when batteries are balanced, either series charging or parallel charging can be selected.

Preferably, when a standard charger is connected, since the embodiment of the present invention can provide reliable information for fast charging for charge and discharge management, a series charging method can be selected at this time, so that fast charging can be performed. When connecting a non-standard charger, you can choose parallel charging at this time to ensure the safety of the battery.

In a preferred embodiment of the present invention, the method may also include the following steps:

If the first battery and the second battery are unbalanced, then determine a charging target object and a charging object according to the first battery information and the second battery information;

According to the charging target object, the charging object is individually charged.

If it is determined that the two batteries are unbalanced based on the first battery information and the second battery information, the battery with a lower capacity can be charged separately so that the power of the two batteries is maintained at approximately the same state to ensure that the two batteries can balanced.

Specifically, the first battery information includes first battery information, the second battery information includes second battery information, and determining the charging target object and the charging object according to the first battery information and the second battery information can be Including the following steps:

comparing the first power information with the second power information;

When the first battery information is greater than the second battery information, determining the first battery as the charging target object, and determining the second battery as the charging object;

When the first battery information is smaller than the second battery information, the second battery is determined as the charging target object, and the first battery is determined as the charging object.

In a specific application, the power information of the two batteries can be compared to determine the battery with a lower power, and then the battery with a lower power can be charged separately based on the battery with a higher power, so that the battery with a lower power can Charge to approximately the same level as the higher level.

Step 204, when the first battery and the second battery are charged in series, detect the second battery information of the second battery.

In a specific implementation, when the first battery and the second battery are charged in series, the power detection module corresponding to the first battery is disconnected from the calculation control unit, and at this time, the calculation control unit can only obtain the power detection module of the second battery Detected second battery information.

Step 205: Determine the predicted first battery information of the first battery according to the second battery information.

After obtaining the second battery information, the calculation and control unit can calculate and predict the first battery information based on the second battery information, which is based on the fact that the electricity flowing through the first battery and the second battery in the same time period in series connection is equal to It is calculated by the principle of proportional relationship, and the error between the calculated value and the actual value will not be too large.

Step 206, when the predicted first battery information satisfies a preset condition, detect the first battery information of the first battery.

In the embodiment of the present invention, if the predicted battery information of the first battery calculated by the operation control unit reaches the preset condition, the first battery information of the first battery can be obtained, specifically by connecting the power of the first battery It is realized by a switch between the detection module and the operation control unit.

Step 207, judge whether the first battery and the second battery are balanced according to the first battery information and the second battery information, and obtain a balanced judgment result.

In practice, it can be determined whether the battery is balanced by comparing the first battery information with the second battery information, and an appropriate charging scheme can be selected according to the balance determination result.

Step 208: Determine a charging scheme according to the balance determination result, and use the charging scheme to charge the first battery and the second battery.

After obtaining the balance determination result, an appropriate charging scheme can be selected according to the balance determination result to continue charging the battery. Specifically, charging schemes include but are not limited to series charging, parallel charging, and separate charging.

In a preferred embodiment of the present invention, the step 208 may include the following sub-steps:

When the balance determination result is balanced, control the first battery and the second battery to be charged in series or in parallel;

When the balance determination result is unbalanced, the first battery or the second battery is charged separately.

Specifically, if the balance determination result is that the two batteries are balanced, you can choose to charge the two batteries in series or in parallel. Preferably, if you are charging with a standard charger, you can choose to charge in series for fast charging. If If it is connected to a non-standard charger for charging, you can choose to charge in parallel to ensure the balanced use of the two batteries and ensure the reliability of the terminal.

In the embodiment of the present invention, when the batteries are charged in series, the potentials do not match, and the battery information of the first battery is calculated by means of calculation. By controlling the switch, the batteries are connected in parallel or exist alone, and the potentials match. In the case of batteries being charged in parallel, the power information is directly read through the power detection module corresponding to each battery.

It should be noted that, for the method embodiment, for the sake of simple description, it is expressed as a series of action combinations, but those skilled in the art should know that the embodiment of the present invention is not limited by the described action sequence, because According to the embodiment of the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

Referring to FIG. 3 , it shows a schematic structural diagram of a charging circuit according to an embodiment of the present invention, which can be applied to a terminal. The charging circuit may include:

An input interface 11 , a ground terminal 12 , an operation control unit 13 and a system 14 .

At least two batteries, the battery can include a first battery 15 and a second battery 16, the first battery 15 has a corresponding first power detection module 17, and the second battery 16 has a corresponding second power detection module 18; the power detection module can It is used to detect the battery information of the battery connected to it. The battery information includes power information, and the battery information detected by the power detection module will be transmitted to the operation control unit 13 .

As shown in Figure 3, the first battery 15 is connected to the input interface 11, the first power detection module 17, the system 14, the ground terminal 12 and the second battery 16, and the second battery 16 is connected to the second power detection module 17 and the ground terminal 12 connection, the first power detection module 17 and the second power detection module 18 are connected to the operation control unit 13 , and the system 14 is connected to the ground terminal 12 .

A plurality of switches are arranged between the input interface 11 , the ground terminal 12 , the first battery 15 , the second battery 16 , the first power detection module 17 , the operation control unit 13 and the system 14 .

Specifically, in the embodiment of the present invention, the plurality of switches include a zeroth switch s0 , a first switch s1 , a second switch s2 , a third switch s3 , a fourth switch s4 , a fifth switch s5 and a sixth switch s6 .

Wherein, the input interface is connected to the first battery through the zeroth switch, the first battery is connected to the second battery through the first switch, the first battery is connected to the ground terminal, the second battery is connected to the ground terminal, the first battery is connected to the system, and the first power detection module The control unit is operated through the second switch.

Specifically, the input interface 11 is connected to the first battery 15 through the zeroth switch s0, the first battery 15 is connected to the second battery 16 through the first switch s1, the first battery 15 is connected to the ground terminal 12 through the sixth switch s6, and the second battery 16 The ground terminal 12 is connected through the third switch s3 , the first battery 15 is connected with the system 14 through the fourth switch s4 and the fifth switch s5 , and the first battery detection module 17 operates the control unit 13 through the second switch s2 .

The calculation control unit 13 of the embodiment of the present invention can receive the battery information detected by the first power detection module 17 and the second power detection module 18, and then determine whether the battery is balanced based on the battery information, so as to determine the charging scheme. In addition, when the fifth switch s5 between the first power detection module 17 and the operation control unit 13 is turned off, the received battery information detected by the second power detection module 18 can also be used to predict whether the first battery 15 battery information.

After the charging scheme is determined, the embodiment of the present invention can control the first battery 15 and the second battery 16 to charge the batteries according to the determined charging scheme through a plurality of switches. The charging scheme may include series charging, parallel charging and separate charging.

In the embodiment of the present invention, when charging in series, the potentials do not match, and the power information of the first battery is calculated by using the power information of the second battery in a calculation manner. By controlling the switch, the batteries can be connected in parallel or separately, and the potentials can be matched. In the case of parallel charging, the power information can be read directly.

In order to enable those skilled in the art to better understand the embodiment of the present invention, the charging process of the embodiment of the present invention is described below using specific examples, and the specific process is as follows:

The input interface of the terminal detects the input level (connected to the charger).

Detect the power information of the first battery and the second battery.

The system judges whether the batteries are balanced based on the power information of the first battery and the second battery.

If the cells are balanced and the terminals are connected to a standard charger, it is possible to control the series charging of the cells. Wherein, when the batteries are charged in series, that is, the first battery and the second battery are charged in series, the ground terminal (current output) of the first battery is the current input of the second battery.

In this state, the level of the first battery is higher than the level of the second battery, the second battery detection module communicates with the operation control unit, and the second battery detection module can send the detected battery information of the second battery to the operation The control unit and the first power detection module detect the power information of the first battery by itself.

The operation control unit detects the current of the system (the current flows through the fifth switch). Since the voltage of the network is equal to the voltage of the second battery, the energy flowing through is proportional to the current in the same time period. Specifically, the first battery The power relationship analysis with the second battery is as follows:

The current flowing through the first battery=the current flowing through the second battery+the current flowing through the switch 5 .

The voltage of the first battery=the voltage of the input port-the voltage of the second battery-the voltage drop of the sampling resistor.

That is to say, the power curve of the first battery is equal to the power curve of the second battery, so the power information of the first battery can be predicted after the power information of the second battery is calculated.

When the operation control unit calculates that the power information of the first battery reaches the preset condition, the operation control unit starts to switch the switch, so that the first battery/first power detection module is grounded, the level of the first battery is consistent with the operation control unit, and the first The power detection module communicates with the operation control unit to confirm the power condition of the first battery. Implement balancing measures based on confirmation. Among them, the equalization measures may include continuous series charging, parallel charging, and separate charging.

By applying the embodiment of the present invention, it is possible to accurately test the power information between two batteries, and perform equalization measures according to the power information, so as to ensure the balanced use of the two batteries and ensure the reliability of the terminal. Preferably, when a standard charger is connected, the embodiments of the present invention provide reliable information for fast charging for charge and discharge management. When a non-standard charger is connected, the embodiment of the present invention can also accurately provide battery information, so that the terminal can accurately control the battery.

Referring to FIG. 4 , it shows a structural block diagram of a terminal embodiment of an embodiment of the present invention. The terminal includes at least a first battery and a second battery. The terminal may specifically include the following modules:

The second battery information detection module 301 is configured to detect the second battery information of the second battery when the first battery and the second battery are charged in series;

A predicted first battery information determining module 302, configured to determine the predicted first battery information of the first battery according to the second battery information;

The first battery information detection module 303 is configured to detect the first battery information of the first battery when the predicted first battery information meets a preset condition;

A balance determination result obtaining module 304, configured to determine whether the first battery and the second battery are balanced to obtain a balance determination result according to the first battery information and the second battery information;

The first battery charging module 305 is configured to determine a charging scheme according to the balance determination result, and use the charging scheme to charge the first battery and the second battery.

In a preferred embodiment of the present invention, the terminal may also include:

A battery information detection module, configured to detect the first battery information of the first battery and the second battery information of the second battery when the first battery and the second battery are charged in parallel;

A battery balance determination module, configured to determine whether the first battery and the second battery are balanced according to the first battery information and the second battery information;

The second battery charging module is configured to control the first battery and the second battery to charge in series if the first battery and the second battery are balanced.

In a preferred embodiment of the present invention, the second battery charging module includes:

The first charging sub-module is configured to control the series charging of the first battery and the second battery when the first battery and the second battery are balanced and the terminal is connected to a standard charger.

In a preferred embodiment of the present invention, the terminal may also include:

A charging target determination module, configured to determine a charging target object and a charging object according to the first battery information and the second battery information if the first battery and the second battery are unbalanced;

The individual charging module is configured to individually charge the charging object according to the charging target object.

In a preferred embodiment of the present invention, the first battery information includes first power information, the second battery information includes second power information, and the charging target determination module includes:

The power information comparison sub-module is used to compare the first power information and the second power information;

A first charging target determination submodule, configured to determine the first battery as a charging target and determine the second battery as a charging target when the first power information is greater than the second power information;

A second charging target determination sub-module, configured to determine the second battery as the charging target and the first battery as the charging target when the first power information is less than the second power information.

In a preferred embodiment of the present invention, the first battery charging module 305 may include the following submodules:

The second charging sub-module is configured to control the first battery and the second battery to be charged in series or in parallel when the balance determination result is balanced;

The third charging sub-module is configured to separately charge the first battery or the second battery when the balance determination result is unbalanced.

The embodiment of the present invention also discloses a terminal, and the terminal has the above-mentioned charging circuit.

As for the embodiment of the terminal and the charging circuit, since they are basically similar and related to the embodiment of the method, the description is relatively simple, and for relevant parts, please refer to the part of the description of the embodiment of the method.

5 is a schematic diagram of a hardware structure of a terminal implementing various embodiments of the present invention. The terminal 70 includes, but is not limited to: a radio frequency unit 71, a network module 72, an audio output unit 73, an input unit 74, a sensor 75, a display unit 76, User input unit 77, interface unit 78, memory 79, processor 710, power supply 711 and other components. Those skilled in the art can understand that the terminal structure shown in FIG. 5 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown in the figure, or combine certain components, or arrange different components. In the embodiment of the present invention, the terminals include, but are not limited to, mobile phones, tablet computers, notebook computers, palmtop computers, vehicle-mounted terminals, wearable devices, and pedometers.

Wherein, the processor 710 is configured to detect the second battery information of the second battery when the first battery and the second battery are charged in series; determine the battery information of the first battery according to the second battery information predicting the first battery information; when the predicted first battery information satisfies a preset condition, detecting the first battery information of the first battery; judging the battery according to the first battery information and the second battery information Determine whether the first battery and the second battery are balanced, and obtain a balanced judgment result; determine a charging scheme according to the balanced judgment result, and use the charging scheme to charge the first battery and the second battery.

In this embodiment of the present invention, when the first battery and the second battery of the terminal are charged in series, the second battery information of the second battery can be detected, and then the predicted first battery information of the first battery can be obtained according to the second battery information. When it is judged that the first battery information meets the preset conditions, the first battery information of the first battery will be obtained, and then the first battery information and the second battery information will be compared to determine whether the two batteries are balanced, and the appropriate battery will be selected according to the balance judgment result. charging scheme. Applying the embodiment of the present invention, when the batteries are being charged in series, the information of another battery can be calculated by means of calculation, so that an appropriate charging scheme can be selected according to the calculated battery power, so that when the batteries are being charged in series, the battery can still be selected. Appropriate charging scheme to ensure the safety of the internal circuit structure.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 71 can be used for receiving and sending signals during sending and receiving information or during a call. Specifically, the downlink data from the base station is received and processed by the processor 710; Uplink data is sent to the base station. Generally, the radio frequency unit 71 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 71 can also communicate with the network and other devices through a wireless communication system.

The terminal provides users with wireless broadband Internet access through the network module 72, such as helping users send and receive emails, browse web pages, and access streaming media.

The audio output unit 73 may convert audio data received by the radio frequency unit 71 or the network module 72 or stored in the memory 79 into an audio signal and output as sound. Also, the audio output unit 73 may also provide audio output related to a specific function performed by the terminal 70 (for example, a call signal reception sound, a message reception sound, etc.). The audio output unit 73 includes a speaker, a buzzer, a receiver, and the like.

The input unit 74 is used to receive audio or video signals. The input unit 74 can include a graphics processing unit (Graphics Processing Unit, GPU) 741 and a microphone 742, and the graphics processing unit 741 is used for still pictures or video images obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The data is processed. The processed image frames may be displayed on the display unit 76 . The image frames processed by the graphics processor 741 may be stored in the memory 79 (or other storage media) or sent via the radio frequency unit 71 or the network module 72 . The microphone 742 can receive sound and can process such sound into audio data. The processed audio data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 71 for output in the case of a phone call mode.

The terminal 70 also includes at least one sensor 75, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 761 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 761 and/or when the terminal 70 moves to the ear. or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three axes), and can detect the magnitude and direction of gravity when it is stationary, and can be used to identify terminal posture (such as horizontal and vertical screen switching, related games, Magnetometer posture calibration), vibration recognition related functions (such as pedometer, knocking), etc.; sensor 75 can also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared ray Sensors, etc., will not be described in detail here.

The display unit 76 is used to display information input by the user or information provided to the user. The display unit 76 may include a display panel 761, and the display panel 761 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an organic light-emitting diode (Organic Light-Emitting Diode, OLED), or the like.

The user input unit 77 can be used to receive input numbers or character information, and generate key signal input related to user settings and function control of the terminal. Specifically, the user input unit 77 includes a touch panel 771 and other input devices 772 . The touch panel 771, also referred to as a touch screen, can collect touch operations of the user on or near it (for example, the user uses any suitable object or accessory such as a finger or a stylus on the touch panel 771 or near the touch panel 771). operate). The touch panel 771 may include two parts, a touch detection device and a touch controller. Among them, 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, converts it into contact coordinates, and sends it to For the processor 710, receive the command sent by the processor 710 and execute it. In addition, the touch panel 771 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 771 , the user input unit 77 may also include other input devices 772 . Specifically, other input devices 772 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.

Further, the touch panel 771 can be covered on the display panel 761. When the touch panel 771 detects a touch operation on or near it, it will send it to the processor 710 to determine the type of the touch event. The type of event provides a corresponding visual output on the display panel 761 . Although in FIG. 5 , the touch panel 771 and the display panel 761 are used as two independent components to realize the input and output functions of the terminal, in some embodiments, the touch panel 771 and the display panel 761 can be integrated to form Realize the input and output functions of the terminal, which is not limited here.

The interface unit 78 is an interface for connecting an external device to the terminal 70 . For example, an external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) ports, video I/O ports, headphone ports, and more. Interface unit 78 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 terminal 70 or may be used transfer data between.

The memory 79 can be used to store software programs as well as various data. The memory 79 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one function required application program (such as a sound playback function, an image playback function, etc.) etc.; Data created by the use of mobile phones (such as audio data, phonebook, etc.), etc. In addition, the memory 79 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage devices.

The processor 710 is the control center of the terminal. It uses various interfaces and lines to connect various parts of the entire terminal. By running or executing software programs and/or modules stored in the memory 79, and calling data stored in the memory 79, execution Various functions and processing data of the terminal, so as to monitor the terminal as a whole. The processor 710 may include one or more processing units; preferably, the processor 710 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs, etc., and the modem The processor mainly handles wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 710 .

The terminal 70 can also include a power supply 711 (such as a battery) for supplying power to various components. Preferably, the power supply 711 can be logically connected to the processor 710 through a power management system, so as to manage charging, discharging, and power consumption through the power management system. Function.

In addition, the terminal 70 includes some functional modules not shown, which will not be repeated here.

Preferably, the embodiment of the present invention also provides a terminal, including a processor 710, a memory 79, and a computer program stored in the memory 79 and operable on the processor 710, and the computer program is implemented when executed by the processor 710 Each process of the battery charging method embodiment described above can achieve the same technical effect, and will not be repeated here to avoid repetition.

The embodiment of the present invention also provides a computer-readable storage medium. A computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, each process of the above battery charging method embodiment is realized, and the same Technical effects, in order to avoid repetition, will not be repeated here. Wherein, the computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk or an optical disk, and the like.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products are stored in a storage medium (such as ROM/RAM, disk, CD) contains several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in various embodiments of the present invention.

Embodiments of the present invention have been described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementations, and the above-mentioned specific implementations are only illustrative, rather than restrictive, and those of ordinary skill in the art will Under the enlightenment of the present invention, without departing from the gist of the present invention and the protection scope of the claims, many forms can also be made, all of which belong to the protection of the present invention.

Claims (15)

1. A battery charging method applied to a terminal, characterized in that the terminal includes at least a first battery and a second battery, and the method includes: Detecting second battery information of the second battery when the first battery and the second battery are being charged in series; determining the predicted first battery information of the first battery according to the second battery information; When the predicted first battery information meets a preset condition, detecting the first battery information of the first battery; judging whether the first battery and the second battery are balanced according to the first battery information and the second battery information, and obtaining a balanced judgment result; A charging scheme is determined according to the balance determination result, and the first battery and the second battery are charged using the charging scheme. 2. The method according to claim 1, wherein when the first battery and the second battery are charged in series, before detecting the second battery information of the second battery, further comprising: When the first battery and the second battery are charged in parallel, detecting first battery information of the first battery and second battery information of the second battery; determining whether the first battery and the second battery are balanced according to the first battery information and the second battery information; If the first battery and the second battery are balanced, the first battery and the second battery are controlled to be charged in series. 3. The method according to claim 2, wherein the controlling the series charging of the first battery and the second battery comprises: When the first battery and the second battery are balanced and the terminal is connected to a standard charger, the first battery and the second battery are controlled to be charged in series. 4. The method according to claim 2, further comprising: after determining whether the first battery and the second battery are balanced according to the first battery information and the second battery information, : If the first battery and the second battery are unbalanced, then determine a charging target object and a charging object according to the first battery information and the second battery information; According to the charging target object, the charging object is individually charged. 5. The method according to claim 4, wherein the first battery information includes first battery information, the second battery information includes second battery information, and the Second, the battery information determines the charging target object and charging object, including: comparing the first power information with the second power information; When the first battery information is greater than the second battery information, determining the first battery as the charging target object, and determining the second battery as the charging object; When the first battery information is smaller than the second battery information, the second battery is determined as the charging target object, and the first battery is determined as the charging object. 6. The method according to claim 1, wherein the determining a charging scheme according to the balance determination result, and using the charging scheme to charge the battery comprises: When the balance determination result is balanced, control the first battery and the second battery to be charged in series or in parallel; When the balance determination result is unbalanced, the first battery or the second battery is charged separately. 7. A charging circuit applied to a terminal, characterized in that the charging circuit includes: Input interface, ground terminal, operation control unit and system; At least two batteries, the battery includes a first battery and a second battery, the first battery has a corresponding first power detection module, and the second battery has a corresponding second power detection module; the first battery It is connected with the input interface, the first power detection module, the system, the ground terminal and the second battery, the second battery is connected with the second power detection module and the ground terminal, and the first power detection module and the second power detection module are connected with the The operation control unit is connected, and the system is connected to the ground terminal; A plurality of switches, the plurality of switches are arranged between the input interface, the ground terminal, the first battery, the second battery, the first power detection module, the operation control unit and the system; When the charging scheme is determined, the first battery and the second battery are controlled by the plurality of switches to perform battery charging according to the charging scheme. 8. The charging circuit according to claim 7, wherein the plurality of switches comprise a zeroth switch, a first switch, and a second switch; Wherein, the input interface is connected to the first battery through the zeroth switch, the first battery is connected to the second battery through the first switch, the first battery is connected to the ground terminal, the second battery is connected to the ground terminal, and the first battery is connected to the ground terminal. A battery connection system, the first power detection module controls the unit through the second switch operation. 9. A terminal, characterized in that the terminal includes at least a first battery and a second battery, and the terminal includes: A second battery information detection module, configured to detect second battery information of the second battery when the first battery and the second battery are charged in series; A predictive first battery information determination module, configured to determine the predictive first battery information of the first battery according to the second battery information; A first battery information detection module, configured to detect the first battery information of the first battery when the predicted first battery information meets a preset condition; A balance determination result obtaining module, configured to determine whether the first battery and the second battery are balanced according to the first battery information and the second battery information, and obtain a balance determination result; The first battery charging module is configured to determine a charging scheme according to the balance determination result, and use the charging scheme to charge the first battery and the second battery. 10. The terminal according to claim 9, further comprising: A battery information detection module, configured to detect the first battery information of the first battery and the second battery information of the second battery when the first battery and the second battery are charged in parallel; A battery balance determination module, configured to determine whether the first battery and the second battery are balanced according to the first battery information and the second battery information; The second battery charging module is configured to control the first battery and the second battery to charge in series if the first battery and the second battery are balanced. 11. The terminal according to claim 10, wherein the second battery charging module comprises: The first charging sub-module is configured to control the series charging of the first battery and the second battery when the first battery and the second battery are balanced and the terminal is connected to a standard charger. 12. The terminal according to claim 10, further comprising: A charging target determination module, configured to determine a charging target object and a charging object according to the first battery information and the second battery information if the first battery and the second battery are unbalanced; The individual charging module is configured to individually charge the charging object according to the charging target object. 13. The terminal according to claim 12, wherein the first battery information includes first power information, the second battery information includes second power information, and the charging target determination module includes: The power information comparison sub-module is used to compare the first power information and the second power information; A first charging target determination submodule, configured to determine the first battery as a charging target and determine the second battery as a charging target when the first power information is greater than the second power information; A second charging target determination sub-module, configured to determine the second battery as the charging target and the first battery as the charging target when the first power information is less than the second power information. 14. The terminal according to claim 9, wherein the first battery charging module comprises: The second charging sub-module is configured to control the first battery and the second battery to be charged in series or in parallel when the balance determination result is balanced; The third charging sub-module is configured to separately charge the first battery or the second battery when the balance determination result is unbalanced. 15. A terminal, characterized in that the terminal has the charging circuit according to any one of claims 7 to 8.