WO2011160510A1 - 一种充电的方法及系统 - Google Patents

一种充电的方法及系统 Download PDF

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Publication number
WO2011160510A1
WO2011160510A1 PCT/CN2011/074153 CN2011074153W WO2011160510A1 WO 2011160510 A1 WO2011160510 A1 WO 2011160510A1 CN 2011074153 W CN2011074153 W CN 2011074153W WO 2011160510 A1 WO2011160510 A1 WO 2011160510A1
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WO
WIPO (PCT)
Prior art keywords
mobile terminal
charging
base
charger
battery
Prior art date
Application number
PCT/CN2011/074153
Other languages
English (en)
French (fr)
Inventor
梁后兴
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP11797541.7A priority Critical patent/EP2533348B1/en
Priority to US13/580,189 priority patent/US9030152B2/en
Publication of WO2011160510A1 publication Critical patent/WO2011160510A1/zh

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Classifications

    • 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
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • 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
    • 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
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • 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
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • 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
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage
    • 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
    • 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
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
    • 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
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00045—Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
    • 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

  • the present invention relates to the field of power management of mobile terminals, and more particularly to a method and system for charging. Background technique
  • the size of mobile terminals is getting smaller and smaller. It is also a trend to transfer the functions commonly used by mobile terminals to the base. For example, most smartphones cancel the full keyboard function and can be used on the base. Full keyboard input function is provided, and because there is less space for supplying audio equipment on the mobile terminal, the sound effect is limited, and a better sound device can be provided through the base. In order not to affect the standby time of the mobile terminal, the power of the newly added device should be provided by a dedicated battery, that is, the base battery, and a charging circuit for the base battery.
  • the cradle charges the mobile terminal and its own pedestal battery.
  • the pedestal connected with the cradle charger is connected to the mobile terminal, and the mobile terminal is charged, and the charging state is always maintained.
  • the base charger charges the base battery; 2.
  • the base with the base charger simultaneously charges its own base battery and the mobile terminal battery, so that the efficiency will be Very low, resulting in too long charging time.
  • the cradle charges the mobile terminal through its own pedestal battery, the charging state is always saved, and the susceptor battery is prone to overdischarge. Summary of the invention
  • the invention provides a charging system, comprising: a base for charging a mobile terminal or a battery of its own base, respectively connected to the mobile terminal and the base charger;
  • the mobile terminal control module for controlling the base to charge the base battery after the mobile terminal is fully charged is located at the mobile terminal and connected to the base.
  • the system further includes: a mobile terminal dual-path selection switch that selects a channel for charging the mobile terminal, and is connected to the mobile terminal control module that determines the charger type and selects a charging process; the mobile terminal dual-path selection switch provides A channel for transmitting a charging current connected to a universal serial bus USB or an AC AC charger, and a channel for transmitting a charging current connected to the cradle charging interface.
  • the base includes: a charging module connected to the base battery, receiving a charging current sent by the base charger, and transmitting the charging current to the base battery; and the base battery connected to the DC-DC DC DC booster,
  • the DCDC booster outputs a charging current; and is connected to the charging module to receive the charging current output by the charging module; the DCDC booster is connected to the base battery, receives the charging current output by the base battery, and is boosted and sent to the base two-way.
  • Select switch select the channel dual-channel selector switch for charging the mobile terminal, connect with the base charger, DCDC booster, transmit the charging current sent by the base charger or DCDC booster; pass the base charging interface with The mobile terminal is connected, and the charging current of the pedestal is output to the mobile terminal.
  • the mobile terminal control module is specifically configured to: read an interface voltage, and the interface is connected to the base charging interface to determine a setting value lower than the interface voltage; further, if connected to an AC/USB charger In the line, if the USB signal line is shorted, the AC charger charges the mobile terminal, and the mobile terminal selects the AC charging process. If there is no short circuit, select the USB charging process; if the setting value is higher than the interface voltage, then The cradle charges the mobile terminal, and reads the interface voltage connected to the pedestal charger. If the interface voltage value connected to the cradle charger is exceeded, the cradle charger charges the mobile terminal, and the USB charging process is selected. Or the AC charging process charges the mobile terminal, otherwise, it is determined that the base battery charges the mobile terminal, selects the USB charging process or The AC charging process charges the mobile terminal.
  • the mobile terminal control module is connected to the charging module, for prohibiting charging the base battery, determining that the battery voltage of the mobile terminal reaches a predetermined value, and allowing charging of the base battery; correspondingly, the charging module is used When the base battery is forbidden to be charged, disconnect the base charger from the base battery; when charging the base battery, connect the base charger to the base battery.
  • the mobile terminal control module is connected to the base battery, and is configured to disconnect the mobile terminal when the base battery voltage is lower than the set value of the base battery voltage when the base battery is charging the mobile terminal. Charging circuit.
  • the invention also provides a charging method, comprising:
  • the base with the cradle charger is connected to the mobile terminal and charges the mobile terminal. After the mobile terminal is fully charged, the control cradle charges the cradle battery.
  • the method before the cradle charges the mobile terminal, the method further includes: the mobile terminal reading the voltage of the interface connected to the charger, the interface voltage is higher than the interface voltage setting value connected to the charger, determining that there is charging The device charges the mobile terminal, selects a channel for accessing the charger to charge the mobile terminal, and selects a corresponding charging process according to the type of the charger.
  • the determining, by the mobile terminal, the corresponding charging process according to the type of the charger includes: the mobile terminal reading the voltage of the interface connected to the pedestal charging interface, and determining a setting value lower than the interface voltage connected to the pedestal charging interface. Further, if the USB signal line is shorted in the line connecting the AC/USB charger, the AC charger charges the mobile terminal, and the mobile terminal selects the AC charging process. If not shorted, select the USB charging process.
  • the cradle charges the mobile terminal, and the mobile terminal reads the voltage of the interface connected to the pedestal charger, if it is greater than the pedestal charger
  • the interface voltage setting value determines whether the pedestal charger is charged, selects the AC charging process or the USB charging process; if it is lower than the interface voltage setting value connected to the pedestal charger, it is determined that the pedestal battery is charged, Select the AC charging process or USB charging process.
  • the method further includes: the mobile terminal sends information to the pedestal for prohibiting charging of the pedestal battery, prohibiting the pedestal charger from charging the pedestal battery, and the mobile terminal is fully charged After that, send information to the cradle to allow charging of the cradle battery, and the cradle charger charges the cradle battery.
  • the method further comprises: the mobile terminal detecting the base battery voltage, determining that the battery voltage is lower than a set value of the base battery voltage, and disconnecting the charging circuit.
  • FIG. 1 is a schematic diagram of a system for implementing charging according to the present invention
  • FIG. 2 is a schematic flow chart of a method for implementing charging according to the present invention. detailed description
  • the pedestal is respectively connected to the mobile terminal and the pedestal charger to charge the mobile terminal, and after the mobile terminal is fully charged, the control cradle charges the pedestal battery, wherein the pedestal charges the mobile terminal
  • the pedestal includes a pedestal charger for charging the mobile terminal, the cradle charging the cradle battery including the pedestal providing a pedestal charger to charge the pedestal battery.
  • a charging system as shown in FIG. 1, the system includes:
  • the pedestal 101 is respectively connected to the mobile terminal and the pedestal charger to charge the mobile terminal; or to charge its own pedestal battery 1012;
  • the mobile terminal control module 102 is configured to control the base 101 to charge the base battery 1012 after the mobile terminal is fully charged.
  • the system further includes:
  • the mobile terminal dual-path selection switch 103 provides a channel for connecting the mobile terminal to a universal serial bus (USB) I alternating current (AC) charger, and the channel is four lines, respectively, a power line, a USB+ signal line, and a USB-signal.
  • USB universal serial bus
  • AC alternating current
  • the channel for selecting the access charger for charging the mobile terminal includes: reading the channel voltage, if the channel voltage is greater than the set value, that is, the channel voltage is high, determining that the channel is connected to the charger, and connecting the channel to the mobile Terminal charging, wherein the set value can be set according to needs, such as 1.8v;
  • the mobile terminal control module 102 is connected to the mobile terminal dual-path selection switch 103, and reads the interface voltage connected to the charger. If the voltage is greater than the set value, the interface voltage is high, and the charger is determined to be connected. Into, further determine the type of charger, select the corresponding charging process, wherein the set value can be set according to needs, such as 3.3v.
  • the pedestal 101 specifically includes:
  • the pedestal dual-path selector switch 1011 provides a channel connecting the mobile terminal to the pedestal charger, or a channel connected to the DC-DC converter 1013, reading the channel voltage, and selecting the channel voltage to be greater than the set value, ie
  • the channel with a high channel voltage is connected to charge the mobile terminal; the charging interface of the base 101 is connected to the mobile terminal, and the charging current is output to the mobile terminal, wherein the set value can be set according to requirements, such as 1.8v. ;
  • the DCDC booster 1013 is connected to the base battery 1012 and the pedestal dual select switch 1011 for boosting the voltage of the susceptor battery 1012 through the boost circuit, boosting to 5v, and outputting to the pedestal dual select switch 1011.
  • Charging current wherein the voltage of the base battery 1012 varies according to specifications, generally 3v ⁇ 4.2v;
  • the base battery 1012 is connected to the DCDC booster 1013 and outputs a charging current to the DCDC booster 1013.
  • the charging module 1014 is connected to receive the charging current of the cradle charger output by the charging module 1014.
  • the charging module 1014 is connected to the pedestal charger, receives the charging current output by the cradle charger, and sends the charging current to the pedestal battery 1012 to charge the pedestal battery 1012.
  • the mobile terminal control module 102 is specifically configured to read the voltage of the interface of the universal input/output (GPIO) 1 of the mobile terminal, and the GPI01 interface is connected with the channel connected to the charging interface of the base 101 by the dual selection switch 103 of the mobile terminal.
  • the setting value of the interface voltage connected to the pedestal charging interface is that the pedestal 101 charges the mobile terminal, and continues to read the interface connected to the pedestal charger, that is, the voltage of the GPI02 interface, if it exceeds the connection with the pedestal charger.
  • the setting value of the interface voltage determines that the pedestal 101 charges the mobile terminal through the cradle charger, selects the USB charging process or the AC charging process, and generally selects the AC charging process to charge the mobile terminal by default; otherwise, it is the pedestal 101
  • the base battery 1012 charges the mobile terminal, selects a USB charging process or an AC charging process, and generally selects an AC charging process to charge the mobile terminal by default;
  • the USB/AC charges the mobile terminal. If the USB+ and USB-wires are shorted together, there is no voltage between the two wires. Poor, the AC charger charges the mobile terminal, selects the AC charging process, and conversely, determines to charge the mobile terminal through the USB cable, and selects the USB charging process.
  • the mobile terminal control module 102 is specifically configured to: when the pedestal charger is charged, prohibit the charging module 1014 from charging the pedestal battery 1012, and send information to the charging module 1014 that prohibits charging the pedestal battery 1012; and monitor the mobile terminal battery in real time.
  • the voltage reaches the specified value, that is, after the mobile terminal battery is fully charged, the charging path is disconnected, the charging module 1014 is allowed to charge the base battery 1012, and the charging module 1014 is sent information allowing charging of the base battery 1012; According to different manufacturers have different settings;
  • the charging module 1014 receives the prohibition sent by the mobile terminal control module 102. After the battery 1012 is charged, the pedestal charger and the pedestal battery 1012 are disconnected; after receiving the information allowing the susceptor battery 1012 to be charged, the pedestal charger and the pedestal battery 1012 are connected.
  • the mobile terminal control module 102 is specifically configured to determine that the base battery 1012 is charging the mobile terminal, and the voltage of the base battery 1012 is monitored through a multi-channel selection channel (MPP) interface, and the voltage of the base battery 1012 is lower than the voltage of the base battery 1012.
  • MPP multi-channel selection channel
  • the set value can be set according to need, for example, 3.3v, the voltage of the base battery 1012 is considered to be too low, and the charging circuit of the mobile terminal is disconnected.
  • the present invention also provides a charging method, as shown in FIG. 2, the specific process is as follows: Step 201, the pedestal is connected to the mobile terminal;
  • the pedestal is connected to the mobile terminal through a charging interface.
  • the pedestal dual selection switch selects a channel with a high level to connect to charge the mobile terminal, and the pedestal dual selection switch provides the mobile terminal and the pedestal.
  • the channel to which the charger is connected, and the channel connected to the DCDC booster connected to the base battery read the voltage of the two channels. If a channel is connected to the charger, the voltage of the channel will be pulled higher, and the selection voltage is higher.
  • the channel voltage setting value that is, the channel with high level is connected, the set value can be set according to need, such as 1.8v, wherein the DCDC booster is used to raise the voltage of the base battery and double to the base
  • the path selection switch outputs a charging current.
  • Step 202 The mobile terminal control module determines the type of the accessed charger, and selects a corresponding charging process according to different charger types.
  • the type of the charger includes a USB cable charger, an AC charger, a base charger, and a base. Battery.
  • the mobile terminal control module determines whether there is a charger connected to the mobile terminal by reading the voltage of the contact connected to the charger. If the contact voltage is lower than the set value, the contact voltage is low, indicating that there is no charger and mobile terminal. Connected; If the contact voltage is higher than the set value, it means that there is a charger connected to the mobile terminal.
  • the set value can be set according to the need, such as 3.3v.
  • the mobile terminal dual-path selection switch selects a channel with a high level to connect, and charges the mobile terminal battery, and the mobile terminal
  • the dual-channel selection switch provides a channel for connecting the mobile terminal control module to the USB/AC charger, and a channel connected to the charging interface of the base, and reads the voltage of the two channels, and the selection level is high, that is, the charger is connected.
  • the channel is connected, and the charging current of the charger is output to the mobile terminal control module, wherein the mobile terminal dual-selection switch connects the USB/AC channel to four lines, which are respectively a power line, a USB+ signal line, a USB-signal line, and a ground. line.
  • the mobile terminal control module determines the type of the charger, and selects a corresponding charging process according to the type of the charger, and specifically includes: the mobile terminal control module reads the voltage of its GPI01 interface, and the GPI01 interface and the mobile terminal dual-way selection switch and the base The channel connected to the charging interface is connected. If it is lower than the setting value of the interface voltage connected to the charging interface of the base, it is low level, and the USB/AC charges the battery of the mobile terminal. Further, because the USB charger of the AC charger side and USB-wire short-circuit, if USB+ and USB-two wires are shorted together, that is, there is no voltage difference between the two wires, the AC charger charges the mobile terminal, and the mobile terminal control module selects the AC charging process to charge.
  • the mobile terminal is charged by the USB cable, and the mobile terminal control module selects a USB charging process for charging, wherein the AC charging process and the USB charging process are the same as the charging process in the prior art, and the two are different.
  • the charging process has different current limiting, such as USB charging process current limit is 500mA, AC charging process current limit is 1A;
  • the pedestal charges the mobile terminal, and the mobile terminal control module continues to read the GPI02 interface voltage connected to the pedestal charger, if greater than
  • the set value of the interface voltage connected to the pedestal charger is that the pedestal charger charges the mobile terminal, and the mobile terminal control module can select the USB charging process or the AC charging process to charge the mobile terminal, as long as the charging is performed on the mobile terminal side.
  • the current can be limited. Generally, the mobile terminal is charged according to the AC charging process.
  • the pedestal battery charges the mobile terminal, and the mobile terminal
  • the control module can select the USB charging process or the AC charging process to charge the mobile terminal, as long as the charging current is limited on the mobile terminal side, generally pressing The mobile terminal is charged according to the AC charging process, and the mobile terminal control module monitors the voltage of the base battery through the MPP interface, and the monitoring includes: the mobile terminal control module reads the base battery voltage through the MPP in real time, if the base battery voltage is lower than
  • the set value of the base battery voltage the set value can be set according to needs, such as 3.3v, if the base battery is lower than 3.3v, the voltage of the base battery is too low, and the mobile terminal control module is disconnected and charged.
  • the circuit prevents over-discharge of the pedestal.
  • the setting value of GPI01 and GPI02 interface voltage can be set according to need, such as 1.8v.
  • Step 203 The mobile terminal control module determines that when the base charger charges the mobile terminal, after the mobile terminal is fully charged, the control base charges the base battery.
  • the mobile terminal control module determines that the cradle charger charges the mobile terminal battery, and sends information prohibiting charging of the pedestal battery to the charging module of the pedestal through its GPI03 interface, and the charging module is used for connecting the pedestal charger and the base.
  • the battery after receiving the information sent by the mobile terminal control module that prohibits charging the base battery, disconnects the base charger from the base battery.
  • the mobile terminal control module reads the battery voltage of the mobile terminal in real time. If the battery voltage of the mobile terminal reaches the specified value, the mobile terminal battery is fully charged, and the specified value has different settings according to different manufacturers, generally 4.2v, the mobile terminal The control module disconnects the charging path, stops charging the battery of the mobile terminal, and sends information to the charging module to allow charging of the base battery. After receiving the information, the charging module connects the path of the base charger and the base battery, and the base charger Charge the base battery.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Telephone Function (AREA)
  • Secondary Cells (AREA)

Description

一种充电的方法及系统 技术领域
本发明涉及移动终端电源管理领域， 特别是指一种充电的方法及系统。 背景技术
随着移动终端的不断发展， 移动终端的体积也越来越小， 将原本移动 终端通用的功能转移到基座也将成为一种趋势， 例如多数智能手机取消了 全键盘功能， 可以在基座上提供全键盘输入功能， 又如由于移动终端上供 给音响设备的空间较少， 导致音响效果有限， 可以通过基座提供更好的音 响设备。 为了不影响移动终端的待机时间， 新增设备的电源都应该由专门 的电池提供， 即基座电池， 还要有针对基座电池的充电电路。
现有技术中， 基座为移动终端以及自身的基座电池充电， 一般有两种 情况， 一、 连有基座充电器的基座与移动终端相连， 给移动终端充电， 会 一直保持充电状态， 直至人为将基座与移动终端分离， 基座充电器才会给 基座电池充电； 二、 连有基座充电器的基座同时给自身的基座电池以及移 动终端电池充电， 这样效率会很低， 导致充电时间过长。 另外， 基座通过 自身的基座电池给移动终端充电时， 会一直保存充电状态， 基座电池容易 出现过放现象。 发明内容
有鉴于此， 本发明的主要目的在于提供一种充电方法与系统， 可提高 充电效率， 进一步防止基座电池过放。
为达到上述目的， 本发明的技术方案是这样实现的：
本发明提供了一种充电的系统， 包括： 为移动终端或自身基座电池充电的基座， 分别与移动终端和基座充电 器相连；
控制基座在移动终端充满电后为基座电池充电的移动终端控制模块， 位于移动终端， 与基座相连。
上述方案中， 该系统进一步包括： 选择通道为移动终端充电的移动终 端双路选择开关， 与确定充电器类型并选择充电流程的移动终端控制模块 相连； 所述移动终端双路选择开关， 提供与通用串行总线 USB或交流 AC 充电器相连的、 传输充电电流的通道， 还提供与基座充电接口相连的、 传 输充电电流的通道。
上述方案中， 所述基座包括： 充电模块， 与基座电池相连， 接收基座 充电器发送的充电电流，发送给基座电池；基座电池， 与直流转直流 DCDC 升压器相连， 向 DCDC升压器输出充电电流； 与充电模块相连， 接收充电 模块输出的充电电流； DCDC 升压器， 与基座电池相连， 接收基座电池输 出的充电电流， 升压后发送给基座双路选择开关； 选择通道为移动终端充 电的基座双路选择开关， 与基座充电器、 DCDC 升压器相连， 传输基座充 电器或 DCDC升压器发送的充电电流；通过基座充电接口与移动终端相连， 向移动终端输出基座的充电电流。
上述方案中， 移动终端控制模块具体用于， 读取接口电压， 所述接口 与基座充电接口相连， 确定低于所述接口电压的设定值； 进一步的， 若与 AC/USB充电器连接的线路中， USB信号线短接， 则是 AC充电器为移动 终端充电， 移动终端选择 AC充电流程， 若没有短接， 选择 USB充电流程； 确定高于所述接口电压的设定值， 则是基座为移动终端充电， 读取与基座 充电器相连的接口电压， 若超过与基座充电器相连的接口电压设定值， 则 是基座充电器为移动终端充电， 选择 USB充电流程或 AC充电流程为移动 终端充电， 反之， 确定是基座电池为移动终端充电， 选择 USB充电流程或 AC充电流程为移动终端充电。
上述方案中， 所述移动终端控制模块， 与充电模块相连， 用于禁止为 基座电池充电， 确定移动终端电池电压达到规定值， 允许为基座电池充电； 相应的， 所述充电模块， 用于在禁止为基座电池充电时， 断开基座充电器 与基座电池的通路； 允许为基座电池充电时， 连接基座充电器与基座电池 的通路。
上述方案中， 所述移动终端控制模块， 与基座电池相连， 用于在基座 电池为移动终端充电时， 确定基座电池电压低于基座电池电压的设定值， 则断开移动终端充电电路。
本发明还提供了一种充电的方法， 包括：
连有基座充电器的基座与移动终端相连， 并为移动终端充电， 移动终 端电池充满后， 控制基座为基座电池充电。
上述方案中， 所述基座为移动终端充电之前， 该方法进一步包括： 移 动终端读取与充电器连接的接口的电压， 接口电压高于与充电器相连的接 口电压设定值， 确定有充电器为移动终端充电， 选择接入充电器的通道为 移动终端充电， 根据充电器的类型选择相应的充电流程。
上述方案中， 所述移动终端根据充电器类型确定相应的充电流程包括： 移动终端读取与基座充电接口相连的接口的电压， 确定低于与基座充电接 口相连的接口电压的设定值； 进一步的， 若与 AC/USB充电器连接的通道 的线路中， USB信号线短接， 则是 AC充电器为移动终端充电， 移动终端 选择 AC充电流程， 若没有短接， 选择 USB充电流程； 确定高于与基座充 电接口相连的接口电压的设定值， 则是基座为移动终端充电， 移动终端读 取与基座充电器连接的接口的电压， 若大于与基座充电器相连的接口电压 设定值， 确定是基座充电器充电， 选择 AC充电流程或者 USB充电流程； 若低于与基座充电器相连的接口电压设定值， 确定是基座电池进行充电， 选择 AC充电流程或者 USB充电流程。
上述方案中， 所述确定是基座充电器充电之后， 该方法还包括： 移动 终端向基座发送禁止为基座电池充电的信息， 禁止基座充电器为基座电池 充电， 移动终端充满电后， 向基座发送允许为基座电池充电的信息， 基座 充电器为基座电池充电。
上述方案中， 所述确定是基座电池进行充电之后， 该方法还包括： 移 动终端检测基座电池电压， 确定电池电压低于基座电池电压的设定值， 断 开充电电路。
由此可见， 釆用本发明所述的充电方法及系统， 连接基座充电器的基 座为移动终端充电时， 将禁止为基座电池充电， 移动终端充满电后， 才会 为基座电池充电， 有效的提高了充电效率。 另外， 本发明方案中， 基座电 池为移动终端充电时， 会实时监控基座电池电量， 防止基座电池过放。 附图说明
图 1为本发明实现充电的系统组成示意图；
图 2为本发明实现充电的方法流程示意图。 具体实施方式
本发明的基本思想是： 基座分别与移动终端和基座充电器相连， 为移 动终端充电， 移动终端充满电后， 控制基座为基座电池充电， 其中， 所述 基座为移动终端充电包括基座提供基座充电器为移动终端充电的通路， 所 述基座为基座电池充电包括基座提供基座充电器为基座电池充电的通路。
下面通过附图和具体实施例来对本发明进行详细说明， 一种充电的系 统， 如图 1所示， 该系统包括：
基座 101 , 分别与移动终端和基座充电器相连， 为移动终端充电； 或为 自身的基座电池 1012充电； 移动终端控制模块 102, 用于确定移动终端充满电后，控制基座 101为 基座电池 1012充电。
该系统进一步包括：
移动终端双路选择开关 103 , 提供移动终端与通用串行总线 （USB ) I 交流（AC )充电器连接的通道，所述通道为 4条线路，分别为电源线、 USB+ 信号线、 USB-信号线以及接地线； 或提供移动终端与基座 101的充电接口 连接的通道， 选择接入充电器的通道为移动终端充电； 与移动终端控制模 块 102相连， 向移动终端控制模块 102输出充电电流， 所述选择接入充电 器的通道为移动终端充电包括： 读取通道电压， 若通道电压大于设定值， 即通道电压为高电平， 则确定该通道接入充电器， 连通该通道为移动终端 充电， 其中， 所述设定值可根据需要自行设定， 如 1.8v;
相应的， 移动终端控制模块 102, 同移动终端双路选择开关 103相连， 读取与充电器连接的接口电压， 若电压大于设定值， 则该接口电压为高电 平， 确定有充电器接入， 进一步确定充电器的类型， 选择相应的充电流程， 其中， 所述设定值可根据需要自行设定， 如 3.3v。
所述基座 101具体包括：
基座双路选择开关 1011 , 提供移动终端与基座充电器相连的通道， 或 与直流转直流（DCDC )升压器 1013相连的通道， 读取通道电压， 选择通 道电压大于设定值， 即通道电压为高的通道连通， 以便为移动终端充电； 通过基座 101 的充电接口与移动终端相连， 向移动终端输出充电电流， 其 中， 所述设定值可根据需要自行设定， 如 1.8v;
DCDC升压器 1013 ,与基座电池 1012和基座双路选择开关 1011相连， 用于将基座电池 1012的电压通过升压电路， 升压至 5v后， 向基座双路选 择开关 1011输出充电电流， 其中， 基座电池 1012的电压根据规格不同而 不同， 一般在 3v~4.2v; 基座电池 1012, 同 DCDC升压器 1013相连， 向 DCDC升压器 1013 输出充电电流； 同充电模块 1014相连， 用于接收充电模块 1014输出的基 座充电器的充电电流；
充电模块 1014, 与基座充电器相连，接收基座充电器输出的充电电流， 并发送给基座电池 1012, 为基座电池 1012充电。
移动终端控制模块 102具体用于， 读取自身通用输入 /输出 （GPIO ) 1 接口的电压， 所述 GPI01接口同移动终端双路选择开关 103与基座 101充 电接口相连的通道相连， 若超过与基座充电接口相连的接口电压的设定值， 则是基座 101 为移动终端充电， 继续读取与基座充电器相连的接口、 即 GPI02接口的电压， 若超过与基座充电器相连的接口电压的设定值， 确定 是基座 101通过基座充电器为移动终端充电， 选择 USB充电流程或 AC充 电流程， 一般默认选择 AC充电流程为移动终端充电； 反之， 则是基座 101 的基座电池 1012为移动终端充电，选择 USB充电流程或 AC充电流程，一 般默认选择 AC充电流程为移动终端充电；
若 GPI01接口电压小于与基座充电接口相连的接口电压的设定值， 则 是 USB/AC为移动终端充电， 若 USB+以及 USB-两根线短接在一起， 即两 根线之间没有电压差，则是 AC充电器为移动终端充电，选择 AC充电流程， 反之， 确定为通过 USB线为移动终端充电， 选择 USB充电流程。
移动终端控制模块 102具体用于， 确定是基座充电器充电时， 禁止充 电模块 1014对基座电池 1012进行充电， 向充电模块 1014发送禁止为基座 电池 1012充电的信息； 实时监控移动终端电池的电压， 达到规定值， 即移 动终端电池充满电后， 断开充电通路， 允许充电模块 1014对基座电池 1012 充电， 向充电模块 1014发送允许为基座电池 1012充电的信息； 所述规定 值根据不同的厂商有不同的设定；
相应的， 充电模块 1014, 接收移动终端控制模块 102发送的禁止为基 座电池 1012充电的信息后， 断开基座充电器与基座电池 1012的通路； 接 收允许为基座电池 1012充电的信息后， 连接基座充电器与基座电池 1012 的通路。
移动终端控制模块 102具体用于， 确定是基座电池 1012为移动终端充 电， 通过多路选择通道（MPP )接口监控基座电池 1012的电压， 确定基座 电池 1012电压低于基座电池 1012电压的设定值， 所述设定值可根据需要 自行设定， 如 3.3v, 则认为基座电池 1012的电压过低， 断开移动终端的充 电电路。
本发明还提供了一种充电的方法， 如图 2所示， 具体过程如下： 步骤 201 , 基座与移动终端相连；
基座通过充电接口与移动终端相连， 给移动终端充电时， 基座双路选 择开关选择电平为高的通道连通， 为移动终端充电， 所述基座双路选择开 关提供移动终端与基座充电器连接的通道， 以及与连接基座电池的 DCDC 升压器连接的通道， 读取两路通道的电压， 若有通道接入充电器， 则该通 道的电压会拉高， 选择电压高于通道电压设定值、 即电平为高的通道连通， 所述设定值可根据需要自行设定， 如 1.8v, 其中， DCDC升压器用于提升 基座电池的电压， 并向基座双路选择开关输出充电电流。
步骤 202, 移动终端控制模块确定接入的充电器的类型， 根据不同的充 电器类型选择相应的充电流程； 所述充电器的类型包括 USB线充电器、 AC 充电器、 基座充电器以及基座电池。
移动终端控制模块通过读取自身同充电器连接的接点的电压判断是否 有充电器与移动终端相连， 若接点电压低于设定值， 即接点电压为低电平， 说明没有充电器与移动终端相连； 若接点电压高于设定值， 说明有充电器 与移动终端相连， 所述设定值可根据需要自行设置， 如 3.3v。 移动终端双 路选择开关选择电平为高的通道连通， 对移动终端电池充电， 所述移动终 端双路选择开关提供移动终端控制模块与 USB/AC充电器相连的通道， 以 及与基座的充电接口相连的通道， 读取两路通道的电压， 选择电平为高， 即接入充电器的通道连通， 将充电器的充电电流输出给移动终端控制模块 , 其中移动终端双路选择开关连接 USB/AC的通道为 4条线路， 分别为电源 线、 USB+信号线、 USB-信号线以及接地线。 移动终端控制模块确定充电器 的类型， 根据充电器类型选择相应的充电流程， 具体包括： 移动终端控制 模块读取自身的 GPI01接口的电压，所述 GPI01接口同移动终端双路选择 开关与基座充电接口相连的通道相连， 若低于与基座充电接口相连的接口 电压的设定值， 则为低电平， 是 USB/AC为移动终端电池充电， 进一步的， 因为 AC充电器端的 USB+以及 USB-线短接， 若 USB+以及 USB-两根线短 接在一起， 即两根线之间没有电压差， 则是 AC充电器为移动终端充电， 移 动终端控制模块选择 AC充电流程进行充电， 若没有短接则是通过 USB线 为移动终端充电， 移动终端控制模块选择 USB充电流程进行充电， 其中所 述的 AC充电流程以及 USB充电流程同现有技术中的充电流程相同， 两者 不同之处在于充电流程限流不同， 如 USB充电流程限流为 500mA , AC充 电流程限流为 1A;
若 GPI01接口电压大于与基座充电接口相连的接口电压的设定值， 则 是基座为移动终端充电， 移动终端控制模块继续读取自身与基座充电器相 连的 GPI02接口电压， 若大于与基座充电器相连的接口电压的设定值， 则 是基座充电器为移动终端充电， 移动终端控制模块可以选择 USB充电流程 或者 AC充电流程对移动终端充电，只要达到在移动终端侧对充电电流进行 限流即可， 一般是按照 AC充电流程对移动终端进行充电， 若 GPI02接口 电压小于与基座充电器相连的接口电压的设定值， 则是基座电池为移动终 端充电， 移动终端控制模块可以选择 USB充电流程或者 AC充电流程对移 动终端充电， 只要达到在移动终端侧对充电电流进行限流即可， 一般是按 照 AC充电流程对移动终端进行充电， 移动终端控制模块通过 MPP接口监 控基座电池的电压， 所述监控包括： 移动终端控制模块通过 MPP实时读取 基座电池电压， 若基座电池电压低于基座电池电压的设定值， 所述设定值 可根据需要自行设定， 如 3.3v, 若基座电池低于 3.3v, 则基座电池的电压 过低， 移动终端控制模块断开充电电路， 防止基座出现过放现象。 其中， GPI01、 GPI02接口电压的设定值可以根据需要自行设置， 如 1.8v。
步骤 203 , 移动终端控制模块确定是基座充电器为移动终端充电时， 在 移动终端充满电后， 控制基座为基座电池充电。
移动终端控制模块确定是基座充电器为移动终端电池充电， 通过自身 的 GPI03接口向基座的充电模块发送禁止为基座电池充电的信息， 所述充 电模块用于连接基座充电器与基座电池， 接收移动终端控制模块发送的禁 止为基座电池充电的信息后， 断开基座充电器与基座电池的连接。
移动终端控制模块实时读取移动终端电池电压， 若移动终端电池电压 达到规定值， 则移动终端电池已充满电， 所述规定值根据不同的厂商有不 同的设定， 一般为 4.2v, 移动终端控制模块断开充电通路， 停止对移动终 端电池进行充电， 向充电模块发送允许为基座电池充电的信息， 充电模块 接收该信息后连接基座充电器与基座电池的通路， 基座充电器对基座电池 进行充电。
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保 护范围， 凡在本发明的精神和原则之内所作的任何修改、 等同替换和改进 等， 均应包含在本发明的保护范围之内。

Claims

权利要求书
1、 一种充电的系统， 其特征在于， 该系统包括：
为移动终端或自身基座电池充电的基座， 分别与移动终端和基座充电 器相连；
控制基座在移动终端充满电后为基座电池充电的移动终端控制模块， 位于移动终端， 与基座相连。
2、 根据权利要求 1所述的系统， 其特征在于， 该系统进一步包括： 选择通道为移动终端充电的移动终端双路选择开关， 与确定充电器类 型并选择充电流程的移动终端控制模块相连；
所述移动终端双路选择开关， 提供与通用串行总线 USB或交流 AC充 电器相连的、 传输充电电流的通道， 还提供与基座充电接口相连的、 传输 充电电 的通道。
3、 根据权利要求 1或 2所述的系统， 其特征在于， 所述基座包括： 充电模块， 与基座电池相连， 接收基座充电器发送的充电电流， 发送 给基座电池；
基座电池， 与直流转直流 DCDC升压器相连， 向 DCDC升压器输出充 电电流； 与充电模块相连， 接收充电模块输出的充电电流；
DCDC升压器， 与基座电池相连， 接收基座电池输出的充电电流， 升 压后发送给基座双路选择开关；
选择通道为移动终端充电的基座双路选择开关， 与基座充电器、 DCDC 升压器相连， 传输基座充电器或 DCDC升压器发送的充电电流； 通过基座 充电接口与移动终端相连， 向移动终端输出基座的充电电流。
4、 根据权利要求 3所述的系统， 其特征在于，
移动终端控制模块具体用于， 读取接口电压， 所述接口与基座充电接 口相连， 确定低于所述接口电压的设定值； 进一步的， 若与 AC/USB充电 器连接的线路中， USB信号线短接， 则是 AC充电器为移动终端充电， 移 动终端选择 AC充电流程， 若没有短接， 选择 USB充电流程；
确定高于所述接口电压的设定值， 则是基座为移动终端充电， 读取与 基座充电器相连的接口电压， 若超过与基座充电器相连的接口电压设定值， 则是基座充电器为移动终端充电， 选择 USB充电流程或 AC充电流程为移 动终端充电， 反之， 确定是基座电池为移动终端充电， 选择 USB充电流程 或 AC充电流程为移动终端充电。
5、 根据权利要求 4所述的系统， 其特征在于，
所述移动终端控制模块， 与充电模块相连， 用于禁止为基座电池充电， 确定移动终端电池电压达到规定值， 允许为基座电池充电；
相应的， 所述充电模块， 用于在禁止为基座电池充电时， 断开基座充 电器与基座电池的通路； 允许为基座电池充电时， 连接基座充电器与基座 电池的通路。
6、 根据权利要求 4所述的系统， 其特征在于，
所述移动终端控制模块， 与基座电池相连， 用于在基座电池为移动终 端充电时， 确定基座电池电压低于基座电池电压的设定值， 则断开移动终 端充电电路。
7、 一种充电的方法， 其特征在于， 该方法包括：
连有基座充电器的基座与移动终端相连， 并为移动终端充电， 移动终 端电池充满后， 控制基座为基座电池充电。
8、 根据权利要求 7所述的方法， 其特征在于， 所述基座为移动终端充 电之前， 该方法进一步包括：
移动终端读取与充电器连接的接口的电压， 接口电压高于与充电器相 连的接口电压设定值， 确定有充电器为移动终端充电， 选择接入充电器的 通道为移动终端充电， 根据充电器的类型选择相应的充电流程。
9、 根据权利要求 8所述的方法， 其特征在于， 所述移动终端根据充电 器类型确定相应的充电流程包括：
移动终端读取与基座充电接口相连的接口的电压， 确定低于与基座充 电接口相连的接口电压的设定值； 进一步的， 若与 AC/USB充电器连接的 通道的线路中， USB信号线短接， 则是 AC充电器为移动终端充电， 移动 终端选择 AC充电流程， 若没有短接， 选择 USB充电流程；
确定高于与基座充电接口相连的接口电压的设定值， 则是基座为移动 终端充电， 移动终端读取与基座充电器连接的接口的电压， 若大于与基座 充电器相连的接口电压设定值，确定是基座充电器充电，选择 AC充电流程 或者 USB充电流程； 若低于与基座充电器相连的接口电压设定值， 确定是 基座电池进行充电， 选择 AC充电流程或者 USB充电流程。
10、 根据权利要求 9所述的方法， 其特征在于， 所述确定是基座充电 器充电之后， 该方法还包括：
移动终端向基座发送禁止为基座电池充电的信息， 禁止基座充电器为 基座电池充电， 移动终端充满电后， 向基座发送允许为基座电池充电的信 息， 基座充电器为基座电池充电。
11、 根据权利要求 9所述的方法， 其特征在于，
所述确定是基座电池进行充电之后， 该方法还包括： 移动终端检测基 座电池电压， 确定电池电压低于基座电池电压的设定值， 断开充电电路。
PCT/CN2011/074153 2010-06-25 2011-05-17 一种充电的方法及系统 WO2011160510A1 (zh)

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