WO2017219437A1 - 一种充电方法、装置及终端 - Google Patents

一种充电方法、装置及终端 Download PDF

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Publication number
WO2017219437A1
WO2017219437A1 PCT/CN2016/091617 CN2016091617W WO2017219437A1 WO 2017219437 A1 WO2017219437 A1 WO 2017219437A1 CN 2016091617 W CN2016091617 W CN 2016091617W WO 2017219437 A1 WO2017219437 A1 WO 2017219437A1
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Prior art keywords
charging
terminal
voltage value
value
preset
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PCT/CN2016/091617
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English (en)
French (fr)
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曾海军
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中兴通讯股份有限公司
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Publication of WO2017219437A1 publication Critical patent/WO2017219437A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • This document relates to, but is not limited to, the field of terminal technologies, and relates to a charging method, device and terminal.
  • USB Universal Serial Bus
  • the line order of USB charging line is VBUS/VCHG (charging pin) ), D-/DM (USB data negative pin), D+/DP (USB data positive pin), ID (USB ID pin), GND (USB pin), mainly use VBUS/VCHG (charging pin) when charging and GND (USB pin) can be.
  • the current mobile intelligent terminal charging scheme mainly relies on the output capability of the charger and the impedance of the control data line to charge the mobile intelligent terminal.
  • the charging side Once the output capability of the charger is lower than the lower limit or the impedance of the data line is slightly larger, then the charging side is reached. The voltage will become smaller. According to the charging principle, the charging side will raise the voltage by reducing the charging current. This current may be reduced from the original maximum constant current (such as 3 amps (A) or 2A, 1.5A, etc.). Until the charging condition of the charging side (such as 1A, 0.5A, etc.) can be satisfied, the charging time is greatly extended, which seriously affects the customer experience.
  • the embodiment of the invention provides a charging method, device and terminal, which solves the problem that the charging current in the constant current phase is small in the charging process of the related art.
  • Embodiments of the present invention provide a charging method, including:
  • the preset value is linearly related to the battery voltage value of the terminal.
  • the method further includes:
  • the input voltage value for charging the terminal is controlled according to the output voltage value of the charger.
  • the step of controlling an input voltage value for charging the terminal according to the preset value includes:
  • the input voltage value for charging the terminal is controlled according to the preset value.
  • the step of obtaining the preset value according to the battery voltage value of the terminal and the voltage value of the preset voltage source includes:
  • the preset value is obtained according to a battery voltage value of the terminal and a voltage value of the preset voltage source.
  • the embodiment of the invention further provides a charging device, comprising:
  • Obtaining a module configured to obtain an output voltage value of a charger connected to the terminal;
  • the first control module is configured to: when the output voltage value of the charger is less than a preset value, control an input voltage value for charging the terminal according to the preset value;
  • the preset value is linearly related to the battery voltage value of the terminal.
  • the device further includes:
  • the second control module is configured to control an input voltage value for charging the terminal according to an output voltage value of the charger when an output voltage value of the charger is greater than or equal to the preset value.
  • the first control module includes:
  • Obtaining a sub-module configured to acquire a battery voltage value of the terminal according to a preset time interval, or obtain a battery voltage value of the terminal in real time;
  • the processing submodule is configured to obtain the preset value according to the battery voltage value of the terminal and the voltage value of the preset voltage source;
  • control submodule configured to control an input voltage value for charging the terminal according to the preset value.
  • control submodule includes:
  • an acquiring unit configured to acquire the preset voltage source corresponding to the charging condition of the terminal; and obtain the preset value according to the battery voltage value of the terminal and the voltage value of the preset voltage source.
  • the embodiment of the invention further provides a terminal, comprising: any one of the above charging devices.
  • the charging method controls the condition that the input voltage value for charging the terminal always satisfies the charging input high current according to a preset value linearly related to the battery voltage value of the terminal, thereby maintaining a high current in the constant current phase during the charging process. Charging greatly shortens the charging time and enhances the user experience.
  • the embodiment of the invention further provides a computer readable storage medium, wherein the computer readable storage medium stores computer executable instructions, and the computer executable instructions are implemented to implement a charging method.
  • FIG. 1 is a schematic flow chart of a charging method according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic diagram of a specific application flow of a charging method according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic circuit diagram of a charging method according to Embodiment 1 of the present invention.
  • FIG. 4 is a schematic diagram of a terminal for implementing a charging method according to Embodiment 1 of the present invention.
  • FIG. 5 is a schematic diagram of a charging device according to Embodiment 2 of the present invention.
  • the embodiments of the present invention provide various solutions for the problem that the charging current in the constant current phase is small in the charging process of the related art, and the details are as follows:
  • a charging method provided in Embodiment 1 of the present invention includes:
  • Step 11 Obtain an output voltage value of a charger connected to the terminal
  • Step 12 When the output voltage value of the charger is less than a preset value, controlling an input voltage value for charging the terminal according to the preset value;
  • the preset value is linearly related to the battery voltage value of the terminal.
  • the charging method provided by the first embodiment of the present invention controls the input voltage value for charging the terminal to always satisfy the condition of charging the input high current according to a preset value linearly related to the battery voltage value of the terminal, thereby maintaining the constant current during the charging process.
  • High-current charging in the stage greatly shortens the charging time and enhances the user experience.
  • the step 11 may include: acquiring an output voltage value of the charger connected to the terminal according to a preset time interval or in real time; the step 12 may include: when the output voltage value of the charger is less than a preset value, Controlling an input voltage value for charging the terminal is equal to the preset value.
  • the charging method further includes: when the output voltage value of the charger is greater than or equal to the preset value, controlling an input voltage value for charging the terminal according to an output voltage value of the charger. .
  • the input voltage value for charging the terminal may be controlled to be equal to the output voltage value of the charger.
  • the step of controlling the input voltage value for charging the terminal according to the preset value comprises: acquiring the preset time interval or real-time The battery voltage value of the terminal; the preset value is obtained according to the battery voltage value of the terminal and the voltage value of the preset voltage source; and the input voltage value for charging the terminal is controlled according to the preset value.
  • the preset value may be a sum of a battery voltage value of the terminal and a voltage value of the preset voltage source.
  • the step of obtaining the preset value according to the battery voltage value of the terminal and the voltage value of the preset voltage source comprises: acquiring the preset voltage source corresponding to the charging condition of the terminal.
  • the step of acquiring an output voltage value of the charger connected to the terminal is performed in synchronization with the step of acquiring the battery voltage value of the terminal.
  • the embodiment of the present invention adopts a method of first comparing and comparing the input voltage (Vin voltage) of a charging IC (integrated circuit) according to a comparison logic to allow an input voltage.
  • Step 21 ordinary charger output voltage, set to Vbus
  • Step 22 The battery voltage of the mobile intelligent terminal is set to Vbat (Vbat is a dynamic data at this time);
  • Step 23 Query the charging IC specification of the mobile intelligent terminal, and set the charging IC input to Vin, Vin ⁇ Vbat + M (M is a constant);
  • TI's BQ24298 has a charging range of 3.88-5.08V.
  • the value of Vin is dynamic and varies with the voltage of Vbat.
  • the value of M can be determined according to the type of charging IC selected by the user.
  • the M value will be different for different charging ICs.
  • This value (M) is indicated in the specification of the charging IC, and the M value is generally around 0.3V. .
  • Step 24 According to the charging condition requirements, select or design a suitable voltage source, set to V2, so that V2 ⁇ M;
  • the voltage source is to provide voltage.
  • the commonly used program-controlled power supply is a voltage source. Its function is to provide a stable voltage.
  • the design voltage source is very simple. According to the series voltage division principle, it is only necessary to connect Vbus to two grounds. The corresponding resistance value can be selected as needed, and will not be described here.
  • the precharge phase is no longer considered in the embodiment of the present invention (the current required for the precharge phase is small, Vbus Can be fully satisfied), directly for the constant current charging phase (the battery voltage can not be 0), then the charging threshold does not need to be considered, because the charging process is mainly divided into pre-charge, constant current charge and constant voltage charge.
  • the constant current charging is a large current charging.
  • the technical solution of the present application can solve the problem of small charging current in the constant current charging phase; at the same time, the technical solution of the present application can also solve the problem that the constant voltage charging phase will be full.
  • the charging IC can always be in the constant current phase and the battery can be fully charged; the design of the V2 only needs to be greater than or equal to the M value. can.
  • the addition circuit can be directly selected by the circuit with the addition function; V3 is dynamic, and changes with the voltage of Vbat.
  • Step 26 Select or design a comparison clamp circuit according to requirements, and compare the output of the clamp circuit to V4;
  • the comparison clamp circuit can also be directly selected by using the relevant circuit, for example, a combination of the comparison circuit and the clamp circuit.
  • Step 28 According to the comparison of the clamping circuit, the adding circuit, the voltage source, the charging IC, and the terminal battery voltage (as shown in FIG. 3), the voltage source, the adding circuit, and the comparison clamping circuit are added to the motherboard circuit of the terminal. ,As shown in Figure 4.
  • the added operation needs to be performed at the beginning of the design of the terminal board, and the motherboard circuit can be constructed by using related circuits.
  • Vbus is greater than V3
  • V4 is greater than or equal to Vbus
  • V3 is equivalent to a preset value.
  • V3 and Vbus are collected in real time, V3 is in real time because the voltage of the mobile terminal battery is changed; Vbus is due to the data line in real time.
  • the current on the current is changed; V3 is the voltage output of the circuit selected or designed according to the charging current of the charging IC. It is equivalent to a reference value.
  • the value of the output of the clamping circuit must be greater than or equal to this value.
  • the charging IC has been handling large current charging conditions.
  • the solution provided by the embodiment of the present invention is simple and easy to understand, and those skilled in the art can implement the above steps without any re-creation; and the solution is mainly achieved by clamping the voltage of the input end of the charging IC. It has always met the constant current operating conditions of the charging IC, so that the charging IC has been working efficiently, thereby improving the charging efficiency, shortening the charging time, and improving user satisfaction.
  • the charging apparatus provided in the second embodiment of the present invention includes:
  • the obtaining module 51 is configured to obtain an output voltage value of the charger connected to the terminal;
  • the first control module 52 is configured to, when the output voltage value of the charger is less than a preset value, control an input voltage value for charging the terminal according to the preset value;
  • the preset value is linearly related to the battery voltage value of the terminal.
  • the charging device provided by Embodiment 2 of the present invention controls the condition that the input voltage value charged to the terminal always satisfies the charging input high current according to a preset value linearly related to the battery voltage value of the terminal, thereby maintaining the constant current phase in the charging process.
  • High current charging greatly reduces charging time and enhances user experience.
  • the obtaining module 51 may be configured to acquire an output voltage value of the charger connected to the terminal according to a preset time interval or in real time; the first control module 52 may be specifically configured to output voltage value at the charger When less than the preset value, the input voltage value for controlling charging of the terminal is equal to the preset value.
  • the charging device further includes: a second control module, configured to control, according to an output voltage value of the charger, when an output voltage value of the charger is greater than or less than the preset value The input voltage value of the terminal charging.
  • a second control module configured to control, according to an output voltage value of the charger, when an output voltage value of the charger is greater than or less than the preset value The input voltage value of the terminal charging.
  • the second control module may be configured to: when the output voltage value of the charger is greater than or equal to the preset value, control an input voltage value for charging the terminal to be equal to an output voltage value of the charger.
  • the first control module includes: an obtaining submodule, configured to acquire a battery voltage value of the terminal according to a preset time interval or in real time; and a processing submodule configured to use a battery voltage value and a preset according to the terminal The voltage value of the voltage source is set to obtain the preset value; and the control submodule is configured to control an input voltage value for charging the terminal according to the preset value.
  • the preset value may be a sum of a battery voltage value of the terminal and a voltage value of the preset voltage source.
  • control submodule includes: an obtaining unit, configured to acquire the preset voltage source corresponding to a charging condition of the terminal.
  • the embodiment of the invention further provides a terminal, comprising: any one of the above charging devices.
  • the embodiment of the invention further provides a computer readable storage medium, wherein the computer readable storage medium stores computer executable instructions, and the computer executable instructions are implemented to implement a charging method.
  • the modules/sub-modules may be implemented in software for execution by various types of processors.
  • an identified executable code module can comprise one or more physical or logical blocks of computer instructions, which can be constructed, for example, as an object, procedure, or function.
  • the executable code of the identified modules need not be physically located together, but may include different instructions stored in different bits that, when logically combined, constitute a module and implement the provisions of the module purpose.
  • the executable code module can be a single instruction or a plurality of instructions, and can even be distributed across multiple different code segments, distributed among different programs, and distributed across multiple memory devices.
  • operational data may be identified within the modules and may be implemented in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed at different locations (including on different storage devices), and may at least partially exist as an electronic signal on a system or network.
  • the module can be implemented by software, considering the level of the existing hardware process, the module can be implemented in software, and the technician can construct a corresponding hardware circuit to implement the corresponding function without considering the cost.
  • the hardware circuitry includes conventional Very Large Scale Integration (VLSI) circuits or gate arrays as well as existing semiconductors such as logic chips, transistors, or other discrete components.
  • VLSI Very Large Scale Integration
  • the modules can also be implemented with programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices, and the like.
  • the above technical solution can maintain high current charging in the constant current phase during the charging process, greatly shortening the charging time and improving the user experience.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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Abstract

一种充电方法、装置及终端，其中，充电方法包括：获取与终端连接的充电器的输出电压值；在所述充电器的输出电压值小于预设值时，按照所述预设值，控制对所述终端充电的输入电压值；其中，所述预设值与所述终端的电池电压值线性相关。本发明实施例提供的方案通过根据与终端的电池电压值线性相关的预设值控制对终端充电的输入电压值始终满足充电输入大电流的条件，从而维持充电过程中恒流阶段大电流充电，大大缩短充电时间，提升用户体验。

Description

一种充电方法、装置及终端 技术领域
本文涉及但不限于终端技术领域，涉及一种充电方法、装置及终端。
背景技术
现在移动智能终端的应用已经非常广泛，普及程度非常高，设计厂家为了外观时尚，结构上越做越薄，留给电池的空间也就越来越小。
但智能终端设备的功耗并未有明显下降，为了适应需求产生了高压高容量电池，但充电器的标准一直未变过，于是就出现了使用部分充电器或者部分数据线需要很长时间才能给高压电池充满这个问题。
相关的移动智能终端设备大多采用国际通用的充电标准，5V的充电头加标准USB(Universal Serial Bus，通用串行总线)充电线，其中USB充电线的线序依次为VBUS/VCHG(充电管脚)、D-/DM(USB数据负脚)、D+/DP(USB数据正脚)、ID(USB ID脚)、GND(USB地脚)，充电时主要使用VBUS/VCHG(充电管脚)和GND(USB地脚)即可。
由上可知，目前移动智能终端充电方案主要依靠充电器的输出能力和控制数据线的阻抗来给移动智能终端充电，一旦充电器的输出能力偏下限或者数据线阻抗稍大，那么到达充电侧的电压就会变小，根据充电原理充电侧就会通过减小充电电流来抬升这个电压，这个电流有可能就从原来的最大恒流(如3安培(A)或者2A、1.5A等)减小一直到能满足充电侧的充电条件(如1A、0.5A等)，大大延长了充电时间，严重影响了客户体验。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本发明实施例提供一种充电方法、装置及终端，解决了相关技术的充电过程中恒流阶段充电电流小的问题。
本发明实施例提供一种充电方法，包括：
获取与终端连接的充电器的输出电压值；
在所述充电器的输出电压值小于预设值时，按照所述预设值，控制对所述终端充电的输入电压值；
其中，所述预设值与所述终端的电池电压值线性相关。
可选地，所述方法还包括：
在所述充电器的输出电压值大于或等于所述预设值时，按照所述充电器的输出电压值，控制对所述终端充电的输入电压值。
可选地，所述在所述充电器的输出电压值小于预设值时，按照所述预设值，控制对所述终端充电的输入电压值的步骤包括：
按照预设时间间隔获取所述终端的电池电压值，或者实时获取所述终端的电池电压值；
根据所述终端的电池电压值和预设电压源的电压值得到所述预设值；
按照所述预设值，控制对所述终端充电的输入电压值。
可选地，所述根据所述终端的电池电压值和预设电压源的电压值得到所述预设值的步骤包括：
获取与所述终端的充电条件对应的所述预设电压源；
根据所述终端的电池电压值和预设电压源的电压值得到所述预设值。
本发明实施例还提供一种充电装置，包括：
获取模块，设置为获取与终端连接的充电器的输出电压值；
第一控制模块，设置为在所述充电器的输出电压值小于预设值时，按照所述预设值，控制对所述终端充电的输入电压值；
其中，所述预设值与所述终端的电池电压值线性相关。
可选地，所述装置还包括：
第二控制模块，设置为在所述充电器的输出电压值大于或等于所述预设值时，按照所述充电器的输出电压值，控制对所述终端充电的输入电压值。
可选地，所述第一控制模块包括：
获取子模块，设置为按照预设时间间隔获取所述终端的电池电压值，或者实时获取所述终端的电池电压值；
处理子模块，设置为根据所述终端的电池电压值和预设电压源的电压值得到所述预设值；
控制子模块，设置为按照所述预设值，控制对所述终端充电的输入电压值。
可选地，所述控制子模块包括：
获取单元，设置为获取与所述终端的充电条件对应的所述预设电压源；根据所述终端的电池电压值和预设电压源的电压值得到所述预设值。
本发明实施例还提供了一种终端，包括：上述任一充电装置。
本发明实施例的上述技术方案的有益效果如下：
上述方案中，所述充电方法通过根据与终端的电池电压值线性相关的预设值，控制对终端充电的输入电压值始终满足充电输入大电流的条件，从而维持充电过程中恒流阶段大电流充电，大大缩短充电时间，提升用户体验。本发明实施例还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机可执行指令，所述计算机可执行指令被执行时实现充电方法。
在阅读并理解了附图和详细描述后，可以明白其它方面。
附图说明
图1为本发明实施例一的充电方法流程示意图；
图2为本发明实施例一的充电方法具体应用流程示意图；
图3为本发明实施例一的充电方法实现电路示意图；
图4为本发明实施例一的充电方法实现终端示意图；
图5为本发明实施例二的充电装置示意图。
具体实施方式
下面将结合附图及具体实施例进行详细描述。
本发明实施例针对相关技术的充电过程中恒流阶段充电电流小的问题，提供了多种解决方案，具体如下：
实施例一
如图1所示，本发明实施例一提供的充电方法，包括：
步骤11：获取与终端连接的充电器的输出电压值；
步骤12：在所述充电器的输出电压值小于预设值时，按照所述预设值，控制对所述终端充电的输入电压值；
其中，所述预设值与所述终端的电池电压值线性相关。
本发明实施例一提供的所述充电方法通过根据与终端的电池电压值线性相关的预设值，控制对终端充电的输入电压值始终满足充电输入大电流的条件，从而维持充电过程中恒流阶段大电流充电，大大缩短充电时间，提升用户体验。
本实施例中，步骤11可以包括：按照预设时间间隔或实时获取与终端连接的充电器的输出电压值；步骤12可以包括：为在所述充电器的输出电压值小于预设值时，控制对所述终端充电的输入电压值等于所述预设值。
可选地，所述充电方法还包括：在所述充电器的输出电压值大于或等于所述预设值时，按照所述充电器的输出电压值，控制对所述终端充电的输入电压值。在本实施例中，在所述充电器的输出电压值大于或等于所述预设值时，可以控制对所述终端充电的输入电压值等于所述充电器的输出电压值。
具体的，所述在所述充电器的输出电压值小于预设值时，按照所述预设值，控制对所述终端充电的输入电压值的步骤包括：按照预设时间间隔或实时获取所述终端的电池电压值；根据所述终端的电池电压值和预设电压源的电压值得到所述预设值；按照所述预设值，控制对所述终端充电的输入电压值。
其中，预设值可为终端的电池电压值和预设电压源的电压值之和。
更具体的，所述根据所述终端的电池电压值和预设电压源的电压值得到所述预设值的步骤包括：获取与所述终端的充电条件对应的所述预设电压源。
为了保证高度的一致性，本发明实施例中，所述获取与终端连接的充电器的输出电压值的步骤与所述获取所述终端的电池电压值的步骤同步进行。
下面通过示例对本发明实施例一提供的充电方法进行进一步说明。
概括来说，本发明实施例是采用一种先比较再根据比较逻辑钳住充电IC(Integrated Circuit，集成电路)输入电压(Vin电压)的方法，让输入电压
稳定在充电IC满足充电输入大电流条件的情况下，给移动智能终端电池充电，大大缩短了充电时间，提升了用户体验。
如图2所示，包括：
步骤21：普通充电器输出电压，设为Vbus；
步骤22：移动智能终端的电池电压设为Vbat(此时的Vbat是一个动态数据)；
步骤23：查询该移动智能终端的充电IC规格书充电条件要求，充电IC输入设为Vin，Vin≥Vbat+M(M为一常数)；
此处说明，不同的充电IC要求不是一样的，比如TI的BQ24298的充电范围在3.88-5.08V；Vin这个值是动态的，随着Vbat的电压改变而变。
M值可以根据用户选择的充电IC的类型来确定，对应于不同的充电IC，M值会有差异，在充电IC的规格书上有标出这个值(M)，M值一般在0.3V左右。
步骤24：根据充电条件要求选取或设计合适的电压源，设为V2，使V2≥M；
其中，电压源是提供电压的，比如常用的程控电源就算一个电压源，它的作用是提供稳定的电压；设计电压源很简单，根据串联分压原理只需将Vbus接两个电阻到地，根据需要选取对应的电阻值即可，在此不再阐述。
本发明实施例中不再考虑预充阶段(预充阶段所需的电流很小，Vbus 完全可以满足)，直接针对恒流充电阶段(电池电压不可能为0)，这时充电门限也无需再考虑，因为充电的过程主要分为预充、恒流充以及恒压充。恒流充时为大电流充，通过本申请技术方案可以解决恒流充阶段充电电流小的问题；同时通过本申请技术方案也可以解决恒压充阶段会充不满的问题。
只要一直动态满足Vin(充电IC实际的输入电压)大于或等于Vbat+M值就可以保证充电IC一直处于恒流阶段大电流充电并确保电池可以充满；V2的设计只需要大于或等于M值即可。
步骤25：根据需求选取或设计加法电路，加法电路输出为V3，则V3＝Vbat+V2；
其中，加法电路可采用相关具备相加功能的电路，直接选取即可；V3是动态的，随着Vbat的电压改变而变。
步骤26：根据需求选取或设计比较钳压电路，比较钳压电路输出为V4；
比较钳压电路也可采用相关电路，直接选取即可，比如：比较电路和钳压电路的组合。
步骤27：充电IC以比较钳压电路的输出电压V4作为充电IC的输入电压Vin，则Vin＝V4；
步骤28：依据上述比较钳压电路、加法电路、电压源、充电IC以及终端电池电压的关系(如图3)，将电压源、加法电路和比较钳压电路添加至终端的主板电路中即可，如图4所示。
添加的操作需要在终端主板设计之初就执行，主板电路可采用相关电路进行搭建。
进一步，结合图3对充电方法的具体执行流程说明如下：
当Vbus大于V3时，若比较电路输出电压V4大于或等于Vbus，则
V4＝Vbus，即充电IC相当于用Vbus作为输入，此时Vin＝Vbus，目前市面上大部分充电器相当于采用的是这种方式充电；
当Vbus小于V3时，此时比较电路输出电压大小等于V3，即
V4＝V3＝Vbat+V2，充电IC的输入端Vin＝V4＝V3＝Vbat+V2≥Vbat+M， 这就是本发明实施例的技术方案解决的部分充电器充电慢的方法，其目的就是为了让充电IC的输入电压Vin一直钳住在该充电IC恒流高效的工作条件之上，让其稳定高效的工作。
在本示例中，V3相当于预设值。
其中，判断电压的大小，决定输出哪个电压等都是比较钳压电路执行的操作，V3和Vbus都是实时采集的，V3实时是因为移动终端电池的电压是变化的；Vbus实时是因为数据线上的电流是变化的；V3是根据满足充电IC大电流充电条件而选取或者设计的电路输出的电压，就相当于是一个参考值，比较钳压电路输出的这个值必须大于等于这个值，才能使充电IC一直处理大电流充电状态。
由上可知，本发明实施例提供的方案简单易懂，本领域技术人员只要按照上述步骤，不需要任何的再创造即可实现；并且该方案通过主要是通过钳住充电IC输入端的电压，让其一直满足充电IC恒流工作条件，使充电IC一直高效的工作，从而提高充电效率，减短充电时间，提升用户满意感。
实施例二
如图5所示，本发明实施例二提供的充电装置，包括：
获取模块51，设置为获取与终端连接的充电器的输出电压值；
第一控制模块52，设置为在所述充电器的输出电压值小于预设值时，按照所述预设值，控制对所述终端充电的输入电压值；
其中，所述预设值与所述终端的电池电压值线性相关。
本发明实施例二提供的所述充电装置通过根据与终端的电池电压值线性相关的预设值控制对终端充电的输入电压值始终满足充电输入大电流的条件，从而维持充电过程中恒流阶段大电流充电，大大缩短充电时间，提升用户体验。
获取模块51可以设置为按照预设时间间隔或实时获取与终端连接的充电器的输出电压值；第一控制模块52可具体用于在所述充电器的输出电压值 小于预设值时，控制对所述终端充电的输入电压值等于所述预设值。
可选地，所述充电装置，还包括：第二控制模块，用于在所述充电器的输出电压值大于或小于所述预设值时，按照所述充电器的输出电压值，控制对所述终端充电的输入电压值。
第二控制模块可以是设置为：在所述充电器的输出电压值大于或等于所述预设值时，控制对所述终端充电的输入电压值等于所述充电器的输出电压值。
可选地，所述第一控制模块包括：获取子模块，用于按照预设时间间隔或实时获取所述终端的电池电压值；处理子模块，用于根据所述终端的电池电压值和预设电压源的电压值得到所述预设值；控制子模块，用于按照所述预设值，控制对所述终端充电的输入电压值。
其中，预设值可为终端的电池电压值和预设电压源的电压值之和。
可选地，所述控制子模块包括：获取单元，设置为获取与所述终端的充电条件对应的所述预设电压源。
其中，上述充电方法的所述实现实施例均适用于该充电装置的实施例中，也能达到相同的技术效果。
本发明实施例还提供了一种终端，包括：上述任一充电装置。
其中，上述充电装置的所述实现实施例均适用于该终端的实施例中，也能达到相同的技术效果。
本发明实施例还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机可执行指令，所述计算机可执行指令被执行时实现充电方法。
需要说明的是，此说明书中所描述的许多功能部件都被称为模块/子模块，以便更加特别地强调其实现方式的独立性。
本发明实施例中，模块/子模块可以用软件实现，以便由各种类型的处理器执行。举例来说，一个标识的可执行代码模块可以包括计算机指令的一个或多个物理或者逻辑块，举例来说，其可以被构建为对象、过程或函数。尽 管如此，所标识模块的可执行代码无需物理地位于一起，而是可以包括存储在不同位里上的不同的指令，当这些指令逻辑上结合在一起时，其构成模块并且实现该模块的规定目的。
实际上，可执行代码模块可以是单条指令或者是许多条指令，并且甚至可以分布在多个不同的代码段上，分布在不同程序当中，以及跨越多个存储器设备分布。同样地，操作数据可以在模块内被识别，并且可以依照任何适当的形式实现并且被组织在任何适当类型的数据结构内。所述操作数据可以作为单个数据集被收集，或者可以分布在不同位置上(包括在不同存储设备上)，并且至少部分地可以仅作为电子信号存在于系统或网络上。
在模块可以利用软件实现时，考虑到现有硬件工艺的水平，所以可以以软件实现的模块，在不考虑成本的情况下，本领域技术人员都可以搭建对应的硬件电路来实现对应的功能，所述硬件电路包括常规的超大规模集成(VLSI)电路或者门阵列以及诸如逻辑芯片、晶体管之类的现有半导体或者是其它分立的元件。模块还可以用可编程硬件设备，诸如现场可编程门阵列、可编程阵列逻辑、可编程逻辑设备等实现。
以上所述的是本申请的可选实施方式，应当指出对于本技术领域的普通人员来说，在不脱离本申请所述原理前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。
工业实用性
上述技术方案可以维持充电过程中恒流阶段大电流充电，大大缩短充电时间，提升用户体验。

Claims (9)

  1. 一种充电方法，包括：
    获取与终端连接的充电器的输出电压值；
    在所述充电器的输出电压值小于预设值时，按照所述预设值，控制对所述终端充电的输入电压值；
    其中，所述预设值与所述终端的电池电压值线性相关。
  2. 如权利要求1所述的充电方法，所述方法还包括：
    在所述充电器的输出电压值大于或等于所述预设值时，按照所述充电器的输出电压值，控制对所述终端充电的输入电压值。
  3. 如权利要求1所述的充电方法，其中：所述在所述充电器的输出电压值小于预设值时，按照所述预设值，控制对所述终端充电的输入电压值的步骤包括：
    按照预设时间间隔获取所述终端的电池电压值，或者实时获取所述终端的电池电压值；
    根据所述终端的电池电压值和预设电压源的电压值得到所述预设值；
    按照所述预设值，控制对所述终端充电的输入电压值。
  4. 如权利要求3所述的充电方法，其中：所述根据所述终端的电池电压值和预设电压源的电压值得到所述预设值的步骤包括：
    获取与所述终端的充电条件对应的所述预设电压源；
    根据所述终端的电池电压值和预设电压源的电压值得到所述预设值。
  5. 一种充电装置，包括：
    获取模块，设置为获取与终端连接的充电器的输出电压值；
    第一控制模块，设置为在所述充电器的输出电压值小于预设值时，按照所述预设值，控制对所述终端充电的输入电压值；
    其中，所述预设值与所述终端的电池电压值线性相关。
  6. 如权利要求5所述的充电装置，所述装置还包括：
    第二控制模块，设置为在所述充电器的输出电压值大于或等于所述预设值时，按照所述充电器的输出电压值，控制对所述终端充电的输入电压值。
  7. 如权利要求5所述的充电装置，其中：所述第一控制模块包括：
    获取子模块，设置为按照预设时间间隔获取所述终端的电池电压值，或者实时获取所述终端的电池电压值；
    处理子模块，设置为根据所述终端的电池电压值和预设电压源的电压值得到所述预设值；
    控制子模块，设置为按照所述预设值，控制对所述终端充电的输入电压值。
  8. 如权利要求7所述的充电装置，其中：所述控制子模块包括：
    获取单元，设置为获取与所述终端的充电条件对应的所述预设电压源；根据所述终端的电池电压值和预设电压源的电压值得到所述预设值。
  9. 一种终端，包括：如权利要求5至8任一项所述的充电装置。
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