WO2021042566A1 - 用于手持设备的快速充电系统及方法、手持设备 - Google Patents

用于手持设备的快速充电系统及方法、手持设备 Download PDF

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Publication number
WO2021042566A1
WO2021042566A1 PCT/CN2019/118904 CN2019118904W WO2021042566A1 WO 2021042566 A1 WO2021042566 A1 WO 2021042566A1 CN 2019118904 W CN2019118904 W CN 2019118904W WO 2021042566 A1 WO2021042566 A1 WO 2021042566A1
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WIPO (PCT)
Prior art keywords
charging
module
voltage
battery
charger
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PCT/CN2019/118904
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English (en)
French (fr)
Inventor
李肇光
张建志
吴远方
周一文
潘维维
黄健萍
曹娟
Original Assignee
深圳传音控股股份有限公司
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Publication of WO2021042566A1 publication Critical patent/WO2021042566A1/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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • 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

Definitions

  • This application relates to the technical field of handheld devices, and in particular to a fast charging system and method for handheld devices, and handheld devices.
  • Handheld devices such as mobile phones can only be quickly charged through the Typc C charging cable, while the widely used USB A-micro The B charging cable can only achieve regular charging of handheld devices, but cannot achieve the effect of fast charging.
  • the main purpose of this application is to provide a charging system and method for a handheld device, and a handheld device, aiming to improve the charging efficiency of the handheld device.
  • this application provides a fast charging system for handheld devices, including a charger, a charging cable, and a device mainboard end.
  • the charger is connected to a USB interface on the device mainboard end; the device mainboard end includes a first A charging module, a second charging module, a control module, a USB interface, and a battery.
  • the USB interface is connected to the first charging module, the second charging module, and the control module.
  • the first charging module and the second charging module are both connected to the control module.
  • Module is connected; the battery is connected to the first charging module, the second charging module, and the control module;
  • the charger includes a microcontroller and a charger interface, and both ends of the charging cable are respectively plugged into the charger interface And USB interface.
  • the device mainboard side further includes a switching module, and the switching module is connected to the USB interface and the control module.
  • the present application also provides a handheld device.
  • the device motherboard includes a first charging module, a second charging module, a control module, a USB interface, and a battery.
  • the USB interface is connected to the first charging module and the second charging module, respectively.
  • the two charging modules are connected to the control module, the first charging module and the second charging module are both connected to the control module; the battery is respectively connected to the first charging module, the second charging module, and the control module, and the USB interface is also provided To connect to the charging interface of an external charger with a built-in microcontroller.
  • the device mainboard side further includes a switching module, and the switching module is connected to the USB interface and the control module.
  • the switching module is a single-pole double-throw switch or a double-pole double-throw switch.
  • control module is provided with a DP pin, a DM pin, an I2C-CLK pin, and an I2C-SDA pin
  • double-pole double-throw switch connects the USB interface with the DP pin
  • the DM pin is connected, or the double-pole double-throw switch connects the USB interface with the I2C-CLK pin and the I2C-SDA pin.
  • the present application also provides a fast charging method applied to a handheld device, the handheld device includes a first charging module, a second charging module, and a battery, and the fast charging method includes the following steps:
  • the handheld device After the handheld device detects that a charger has formed a communication connection with it through the charging line, it acquires the impedance of the charging line;
  • the charging parameter of the battery is configured according to the impedance, and the first charging module is controlled to charge the handheld device battery according to the charging parameter.
  • the method before the step of obtaining the impedance of the charging line, the method includes:
  • the handheld device After the handheld device detects that a charger has formed a communication connection with it through the charging cable, it detects the type of the charging port of the charger;
  • the charging port type is a dedicated charging port, controlling the switching module to switch the communication mode between the handheld device and the charger to an I2C master-slave communication mode;
  • the step of configuring the charging parameters of the handheld device according to the impedance includes:
  • the impedance When the impedance is less than the preset impedance, obtain the corresponding maximum charging current and maximum charging voltage of the first charging module according to the impedance interval in which the impedance is located, wherein the maximum charging current is less than or equal to the charger
  • the maximum output current of the charger, the maximum charging voltage is less than or equal to half of the maximum output current of the charger.
  • the step of charging the battery of the handheld device according to the charging parameter includes:
  • the first charging module is activated to charge the battery according to the maximum charging current and the maximum charging voltage.
  • the step of enabling the first charging module to charge the battery according to the maximum charging current and the maximum charging voltage includes:
  • the maximum output voltage of the charger is increased.
  • the step of enabling the first charging module to charge the battery according to the maximum charging current and the maximum charging voltage includes:
  • the preset alarm voltage value is reduced, and when it is detected that the maximum charging voltage of the battery is greater than the reduced preset alarm voltage, the maximum output voltage of the charger is reduced ;
  • the maximum output voltage of the charger is increased.
  • the step of enabling the first charging module to charge the battery according to the maximum charging current and the maximum charging voltage includes:
  • the first charging module In the constant voltage charging phase of the battery, when the current voltage of the battery reaches a predetermined target voltage, and the maximum charging current of the first charging module is less than the predetermined current, the first charging module is controlled to be turned off, and the first charging module is activated. The second charging module charges the battery until the charging ends.
  • the present application also provides a handheld device, the handheld device including a memory, a processor, and a charging program of the handheld device stored on the memory and running on the processor, the handheld device
  • the charging program is executed by the processor, the steps of the fast charging method as described in any one of the above are implemented.
  • the present application also provides a readable storage medium on which a charging program of a handheld device is stored.
  • a charging program of a handheld device is stored.
  • the charging cable can be a common USB A-Micro B charging line, as long as the microcontroller of the charger supports the I2C master-slave communication mode, the handheld device can configure the output voltage and output current of the charger and control the first charging module
  • the charging current and charging voltage are configured according to the output voltage and output current of the charger, so that the system and method of the present application have wide applicability, and the production cost is reduced, unlike the existing Typc
  • the C charger also needs to add a special logic control chip.
  • the USB interface of the handheld device is a Type C interface
  • only the USB A-Micro The Micro B of the B charging cable is transferred to the Type C interface to realize the above-mentioned fast charging.
  • FIG. 1 is a schematic diagram of the device structure of the hardware operating environment involved in the solution of the embodiment of the present application;
  • FIG. 2 is a schematic diagram of the circuit framework of the fast charging system of this application.
  • FIG. 3 is a detailed flowchart of an embodiment of the fast charging method of this application.
  • FIG. 4 is a detailed flowchart of another embodiment of the fast charging method according to the present application.
  • FIG. 5 is a detailed flowchart of an embodiment of step S50 of the fast charging method of this application.
  • the handheld device After the handheld device detects that a charger has formed a communication connection with it through the charging line, it acquires the impedance of the charging line;
  • the charging parameter of the battery is configured according to the impedance, and the first charging module is controlled to charge the handheld device battery according to the charging parameter.
  • Handheld devices such as mobile phones can only be quickly charged through the Typc C charging cable, while the widely used USB A-micro The B charging cable can only achieve regular charging of handheld devices, but cannot achieve the effect of fast charging.
  • the charging cable can be a common USB A-Micro B charging line, as long as the microcontroller of the charger supports the I2C master-slave communication mode, the handheld device can configure the output voltage and output current of the charger and control the first charging module
  • the charging current and charging voltage are configured according to the output voltage and output current of the charger, so that the system and method of the present application have wide applicability, and the production cost is reduced, unlike the existing Typc
  • the C charger also needs to add a special logic control chip.
  • the USB interface of the handheld device is a Type C interface
  • only the USB A-Micro The Micro B of the B charging cable is transferred to the Type C interface to realize the above-mentioned fast charging.
  • Fig. 1 is a schematic diagram of a hardware operating environment of a handheld device involved in a solution of an embodiment of the present application.
  • the handheld device in the embodiment of the present application may be a mobile handheld device, such as a mobile phone, a tablet computer, a portable notebook computer, and the like.
  • the handheld device may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, and a communication bus 1002.
  • the communication bus 1002 is used to implement connection and communication between these components.
  • the user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and a remote control.
  • the optional user interface 1003 may also include a standard wired interface and a wireless interface.
  • the network interface 1004 can optionally include a standard wired interface, a wireless interface (such as a non-volatile memory memory), such as disk storage.
  • the memory 1005 may also be a storage device independent of the aforementioned processor 1001.
  • the structure of the handheld device shown in FIG. 1 does not constitute a limitation on the handheld device, and may include more or less components than shown in the figure, or a combination of certain components, or different component arrangements. .
  • the memory 1005 which is a computer storage medium, may include an operating system, a network communication module, a user interface module, and a charging program of a handheld device.
  • the network interface 1004 is mainly used to connect to the back-end server and communicate with the back-end server;
  • the user interface 1003 is mainly used to connect to the client (user side) and communicate with the client;
  • the device 1001 can be used to call the charging program of the handheld device stored in the memory 1005 and perform the following operations:
  • the handheld device After the handheld device detects that a charger has formed a communication connection with it through the charging line, it acquires the impedance of the charging line;
  • the charging parameter of the battery is configured according to the impedance, and the first charging module is controlled to charge the handheld device battery according to the charging parameter.
  • processor 1001 may call the charging program of the handheld device stored in the memory 1005, and also perform the following operations:
  • the handheld device After the handheld device detects that a charger has formed a communication connection with it through the charging cable, it detects the type of the charging port of the charger;
  • the charging port type is a dedicated charging port, controlling the switching module to switch the communication mode between the handheld device and the charger to an I2C master-slave communication mode;
  • processor 1001 may call the charging program of the handheld device stored in the memory 1005, and also perform the following operations:
  • processor 1001 may call the charging program of the handheld device stored in the memory 1005, and also perform the following operations:
  • the impedance When the impedance is less than the preset impedance, obtain the corresponding maximum charging current and maximum charging voltage of the first charging module according to the impedance interval in which the impedance is located, wherein the maximum charging current is less than or equal to the charger
  • the maximum output current of the charger, the maximum charging voltage is less than or equal to half of the maximum output current of the charger.
  • processor 1001 may call the charging program of the handheld device stored in the memory 1005, and also perform the following operations:
  • the first charging module is activated to charge the battery according to the maximum charging current and the maximum charging voltage.
  • processor 1001 may call the charging program of the handheld device stored in the memory 1005, and also perform the following operations:
  • the maximum output voltage of the charger is increased.
  • processor 1001 may call the charging program of the handheld device stored in the memory 1005, and also perform the following operations:
  • the maximum output voltage of the charger is increased.
  • processor 1001 may call the charging program of the handheld device stored in the memory 1005, and also perform the following operations:
  • the first charging module In the constant voltage charging phase of the battery, when the current voltage of the battery reaches a predetermined target voltage and the maximum charging current of the first charging module is less than the predetermined current, the first charging module is controlled to be turned off, and the second charging is enabled. The module charges the battery until the end of the charge.
  • the present application provides a handheld device 10, and a fast charging system 100 for the handheld device 10.
  • the fast charging system 100 includes a charger 20, a charging cable, and a device mainboard terminal.
  • the charger 20 Connected to the USB interface 11 on the device main board; the device main board includes a first charging module 12, a second charging module 13, a control module 14, a USB interface 11, and a battery 15.
  • the USB interface 11 is connected to the first charging module 12, respectively.
  • the second charging module 13 and the regulating module 14 are connected, the first charging module 12 and the second charging module 13 are both connected to the regulating module 14; the battery 15 is connected to the first charging module 12, the second charging module 13, and
  • the control module 14 is connected.
  • the handheld device 10 may be a portable device such as a mobile phone, a tablet computer, etc., and a USB interface 11 is provided on the device motherboard end of the handheld device 10, and the USB interface 11 may specifically be a Micro B interface or Type C interface, etc.; the USB interface 11 is connected to the control module 14 for the control module 14 to control the first charging module 12 or the second charging module after receiving the signal transmitted by the USB interface 11 13 Charge the battery 15; the charger 20 is used to connect the handheld device 10 with the city power to charge the handheld device 10, and the charger 20 can support fast charging such as QC, PE, etc. The fast charger of the protocol is used to quickly charge the handheld device 10.
  • the handheld device 100 of this embodiment can realize dual wireless simultaneous charging.
  • the first charging module 12 and the second charging module 13 may both be wireless charging chips, or wired and wireless dual charging modes may be realized.
  • Simultaneous charging for example, the first charging module 12 is a wired charging chip, and the second charging module 13 is a wireless charging chip.
  • the battery 16 in this application includes a battery cell and a battery 16 protection board.
  • the battery 16 is connected through the control module 15.
  • the control module 14 in this embodiment is a SYS module. Specifically, the battery 16 passes through the SYS module.
  • the Bat-temp pin (namely Battery and Temperature abbreviation) of the module is connected to realize real-time monitoring of the temperature of the battery 16.
  • the fast charging system 100 further includes a charging cable 30.
  • the charger 20 includes a microcontroller 21 and a charger interface 22. Both ends of the charging cable 40 are plugged into the charger interface 22 and the charger interface 22, respectively.
  • USB interface 11 The charging cable 40 may be USB
  • the A-Micro B charging cable 40 may also be a Type C charging cable 40, or other charging cables 40, and only need to be adapted to the USB interface 11.
  • the main board side of the device further includes a switching module 40, and the switching module 40 is connected to the USB interface 11 and the control module 15.
  • the switching module 40 is a single-pole double-throw switch or a double-pole double-throw switch.
  • the control module 15 is provided with a DP pin, a DM pin, an I2C-CLK pin, and an I2C-SDA pin.
  • the double-pole double-throw switch connects the charging interface with the DP pin and the DM pin. Connect, or, the double-pole double-throw switch connects the charging interface with the I2C-CLK pin and the I2C-SDA pin.
  • the DP pin, DM pin, I2C-CLK pin, and I2C-SDA pin are used for signal transmission, and the DP pin and DM pin are connected through the switching module 40.
  • the control module 15 works in DP/ In the DM working mode, when the I2C-CLK pin and I2C-SDA pin are connected to the USB interface 11 through the switching module 40, the control module 15 works in the I2C master-slave communication mode. At this time, The handheld device is the host, and the charger is the slave.
  • control module 15 when the control module 15 is working in the I2C master-slave communication mode, it can interact with the charger 20 for master-slave information, and the control module 15 can be based on the I2C master-slave communication mode.
  • the communication mode detects whether the charger 20 is charged through a dedicated charging port (DCP).
  • DCP dedicated charging port
  • the control module 15 may also send verification information to the charger 20, and upon receiving the confirmation information returned by the charger 20
  • the control module 15 may also configure the maximum value of the charger 20 based on the I2C master-slave communication mode. Output voltage and maximum output current.
  • the fast charging method of the present application is proposed to be applied to the handheld device, and the handheld device includes a first charging module, a second charging module, and a battery,
  • the first embodiment of the fast charging method includes the following steps:
  • step S10 after the handheld device detects that a charger has formed a communication connection with it through the charging cable, it acquires the impedance of the charging cable.
  • the impedance of the charging line can be obtained, specifically, the charging The known current input in the line, and the voltage difference between the two ends of the charging line connection, that is, the end of the charger to the end of the first charging module, according to Ohm’s law, the impedance of the charging line is The quotient of the voltage difference and the known current can be understood that the impedance of the charging line can also be obtained in other ways, which will not be repeated here.
  • Step S20 Configure the charging parameter of the battery according to the impedance, and control the first charging module to charge the battery of the handheld device according to the charging parameter.
  • the output voltage and output current of the charger can be configured according to the impedance, and the output current and the output voltage can be transferred to the first charger.
  • the first charging module configures the charging voltage and charging current of the battery according to the output current and the output voltage of the charger.
  • a half-voltage direct charging method is used to charge the battery. Current rapid charging, wherein the charging voltage is less than or equal to half of the output voltage, and the charging current is less than or equal to the output current of the charger, so that the battery can be quickly charged by the maximum current of the charger.
  • the technical solution of the present application obtains the impedance of the charging line, configures the charging parameters of the battery according to the impedance, and quickly charges the battery according to the charging parameters, thereby improving the battery's performance.
  • Charging efficiency
  • the charging cable can be a common USB A-Micro B charging line, as long as the microcontroller of the charger supports the I2C master-slave communication mode, the handheld device can configure the output voltage and output current of the charger and control the first charging module
  • the charging current and charging voltage are configured according to the output voltage and output current of the charger, so that the system and method of the present application have wide applicability, and the production cost is reduced, unlike the existing Typc
  • the C charger also needs to add a special logic control chip.
  • the USB interface of the handheld device is a Type C interface
  • only the USB A-Micro The Micro B of the B charging cable is transferred to the Type C interface to realize the above-mentioned fast charging.
  • the method includes:
  • Step S30 after the handheld device detects that a charger has formed a communication connection with it through the charging cable, it detects the type of the charging port of the charger;
  • Step S40 when the charging port type is a dedicated charging port, control the switching module to switch the communication mode between the handheld device and the charger to an I2C master-slave communication mode;
  • Step S50 It is determined that the I2C master-slave communication mode is successfully established, and the maximum output voltage and maximum output current of the charger are obtained.
  • the handheld device detects that a charger has formed a communication connection with it through a charging cable, it detects the type of the charging port of the charger.
  • the charger is increased.
  • the voltage value of the DP/DM is a predetermined voltage such as 0.6V to use the dedicated charging port as the charging port of the charger, and after a preset debounce time is continued, the switching module is controlled to connect the handheld device with
  • the communication mode of the charger is switched to the I2C master-slave communication mode, and after it is determined that the I2C master-slave communication mode is established successfully, the maximum output voltage and maximum output current of the charger are obtained, so that the maximum output voltage and maximum output current of the charger can be obtained according to the charger
  • the maximum output voltage and maximum output current and the impedance configure the charging parameters of the battery.
  • the charger when the charging port type is a USB charging port, the charger is controlled to charge the battery with a constant current of less than or equal to 0.5A.
  • the charging port type is a CDP charging port, Then, the charger is controlled to charge the battery with a constant current of less than or equal to 0.5A.
  • step S50 includes:
  • Step S51 sending verification information to the charger
  • Step S52 After receiving the confirmation message returned by the charger, it is determined that the I2C master-slave communication mode is successfully established.
  • the verification information is sent to the charger, and the verification information carries preset identification information of the charger, such as the charger ID.
  • the identification information matches, after the charger returns confirmation information to the handheld device, it can be determined that the charger is a dedicated charger that can perform half-voltage direct charging, so that the charger can be obtained subsequently The steps of the maximum output voltage and maximum output current.
  • the handheld device after the handheld device sends verification information to the charger, it does not receive the confirmation information returned by the charger within a preset time interval. At this time, it is further checked whether the charger supports Fast charging protocol such as PE fast charging protocol or QC fast charging protocol, when the charger supports the fast charging protocol, the battery is charged according to the corresponding fast charging protocol, and when the charger does not support the fast charging protocol , Then the battery is charged by a conventional charging method.
  • Fast charging protocol such as PE fast charging protocol or QC fast charging protocol
  • step S20 includes:
  • Step S21 when the impedance is less than a preset impedance, obtain the corresponding maximum charging current and maximum charging voltage of the first charging module according to the impedance interval in which the impedance is located, wherein the maximum charging current is less than or equal to For the maximum output current of the charger, the maximum charging voltage is less than or equal to half of the maximum output current of the charger.
  • the preset impedance may be, for example, 0.5 ⁇ .
  • the impedance of the charging line is less than 0.5 ⁇ , the corresponding maximum charge of the first charging module is obtained according to the impedance interval in which the impedance is located.
  • Current and maximum charging voltage wherein the maximum charging current is less than or equal to the maximum output current of the charger, and the maximum charging voltage is less than or equal to half of the maximum output current of the charger, and is based on the maximum charging current and The maximum charging voltage performs high-current half-voltage charging on the battery.
  • the impedance when the impedance is greater than the preset impedance, it indicates that the charging cable is not suitable for charging the battery by half-voltage charging.
  • the charger it is further checked whether the charger supports the fast charging protocol. For example, the PE fast charge protocol or the QC fast charge protocol, when the charger supports the fast charge protocol, the battery is charged according to the corresponding fast charge protocol, and when the charger does not support the fast charge protocol, pass The battery is charged in a conventional charging method.
  • the PE fast charge protocol or the QC fast charge protocol when the charger supports the fast charge protocol, the battery is charged according to the corresponding fast charge protocol, and when the charger does not support the fast charge protocol, pass The battery is charged in a conventional charging method.
  • a fifth embodiment of the fast charging method of the present application is proposed, and the step S20 includes:
  • Step S22 Determine whether the current voltage of the battery of the handheld device reaches a preset voltage
  • Step S23 when the current voltage does not reach the preset voltage, enable the second charging module to perform constant current charging of the battery until the preset voltage is reached;
  • Step S24 when the current voltage reaches a preset voltage, enable the first charging module to charge the battery according to the maximum charging current and the maximum charging voltage.
  • the preset voltage may be 3.5V, for example.
  • the second charging module is activated to perform constant current charging of the battery until the current voltage of the battery reaches the preset voltage of 3.5V; after the current voltage reaches the preset voltage of 3.5V, the The second charging module enables the first charging module to charge the battery according to the maximum charging current and the maximum charging voltage.
  • step S24 includes:
  • Step S241 in the constant current charging stage of the battery, when it is detected that the maximum charging voltage of the battery is greater than the preset alarm voltage, the maximum output voltage of the charger is reduced;
  • Step S242 When it is detected that the maximum charging voltage of the battery is less than the preset alarm current, the maximum output voltage of the charger is increased.
  • the current voltage of the battery is detected to determine which charging stage the battery is in.
  • the preset voltage may be 3.5V; when the current voltage is greater than the preset voltage and less than the preset target voltage, it is determined that the battery is in the constant current charging stage, and the preset target voltage may be equal to or slightly less than the full battery.
  • the terminal voltage after charging when the current voltage is greater than the preset target voltage and the charging current of the battery is less than the preset current, it is determined that the battery is in the constant voltage charging stage; when the current charging stage of the battery is obtained Then, the corresponding charging loop is controlled to be turned on, thereby effectively improving the charging efficiency of the battery.
  • the battery in the constant current charging stage of the battery, when it is detected that the maximum charging voltage of the battery is greater than the preset alarm voltage, the battery may be damaged, and the maximum output voltage of the charger is reduced.
  • the voltage is equal to half of the maximum output voltage. Therefore, by subtracting the maximum output voltage of the charger, the maximum charging voltage can be correspondingly reduced, so that the maximum charging voltage is less than the preset alarm voltage.
  • the maximum output voltage of the charger is increased.
  • the maximum output voltage of the charger is increased .
  • the maximum output current of the charger can be increased, and because the maximum charging current of the first charging module is equal to or less than the maximum output current of the charger, the maximum charging current of the charging chip can be increased , In order to improve the charging efficiency of the battery.
  • a seventh embodiment of the fast charging method of the present application is proposed, and the step S24 includes:
  • Step S243 in the constant voltage charging stage of the battery, reduce the preset alarm voltage value, and when it is detected that the maximum charging voltage of the battery is greater than the reduced preset alarm voltage, then decrease the charger's Maximum output voltage;
  • Step S244 When it is detected that the maximum charging voltage of the battery is less than the reduced preset alarm current, the maximum output voltage of the charger is increased.
  • the preset alarm voltage value needs to be lowered to avoid damage to the battery.
  • the maximum output voltage of the charger is reduced to make the maximum charging voltage smaller; when it is detected that the maximum charging voltage of the battery is less than the reduced preset
  • the maximum output voltage of the charger is increased to increase the maximum charging current and improve the charging efficiency of the battery.
  • the step S24 includes:
  • Step S245 In the constant voltage charging phase of the battery, when the current voltage of the battery reaches a predetermined target voltage and the maximum charging current of the first charging module is less than the predetermined current, control the first charging module to turn off , Enabling the second charging module to charge the battery until the charging ends.
  • the first charging module is controlled to be disconnected, and the second charging module is activated to charge the battery with constant current until the charging is completed.
  • the present application also provides a handheld device, the handheld device including a memory, a processor, and a charging program of the handheld device stored on the memory and running on the processor, the handheld device When the charging program is executed by the processor, the steps of the fast charging method described above are realized.
  • the present application also provides a readable storage medium having a charging program of a handheld device stored on the computer readable storage medium, and the charging program of the handheld device is executed by a processor to achieve the fast speed as described above. Steps of charging method.

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  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

一种手持设备及其快速充电系统及方法，快速充电系统(100)包括充电器(20)、充电线(30)和设备主板端，充电器(20)与设备主板端的USB接口(11)相连；设备主板端包括第一充电模块(12)、第二充电模块(13)、调控模块(14)、USB接口(11)以及电池(15)，USB接口(11)分别与第一充电模块(12)、第二充电模块(13)以及调控模块(14)相连，第一充电模块(12)和第二充电模(13)块均与调控模块(14)相连；电池(15)分别与第一充电模块(12)、第二充电模块(13)以及调控模块(14)相连；充电器(20)包括微控制器(21)以及充电器接口(22)，充电线(30)两端分别插接于所述充电器接口(22)以及USB接口(11)。

Description

用于手持设备的快速充电系统及方法、手持设备
相关申请
本申请要求2019年9月5日申请的，申请号为201910840350.1，名称为“用于手持设备的快速充电系统及方法、手持设备”的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本申请涉及手持设备技术领域，尤其涉及一种用于手持设备的快速充电系统及方法、手持设备。
背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然地构成现有技术。
手持设备如手机只能通过Typc C充电线进行快速充电，而应用广泛的USB A-micro B充电线只能对手持设备实现常规充电，而不能实现快速充电的效果。
发明内容
本申请的主要目的在于提供一种手持设备的充电系统及方法、手持设备，旨在提高手持设备的充电效率。
为实现上述目的，本申请提供一种用于手持设备的快速充电系统，包括充电器、充电线和设备主板端，所述充电器与设备主板端的USB接口相连；所述设备主板端包括第一充电模块、第二充电模块、调控模块、USB接口以及电池，所述USB接口分别与第一充电模块、第二充电模块以及调控模块相连，所述第一充电模块和第二充电模块均与调控模块相连；所述电池分别与第一充电模块、第二充电模块以及调控模块相连；所述充电器包括微控制器以及充电器接口，所述充电线两端分别插接于所述充电器接口以及USB接口。
可选地，所述设备主板端还包括切换模块，所述切换模块连接所述USB接口以及所述调控模块。
为了实现上述目的，本申请还提供一种手持设备，所述设备主板端包括第一充电模块、第二充电模块、调控模块、USB接口以及电池，所述USB接口分别与第一充电模块、第二充电模块以及调控模块相连，所述第一充电模块和第二充电模块均与调控模块相连；所述电池分别与第一充电模块、第二充电模块以及调控模块相连，所述USB接口还设置为连接到内置有微控制器的外部充电器的充电接口上。
可选地，所述设备主板端还包括切换模块，所述切换模块连接所述USB接口以及所述调控模块。
可选地，所述切换模块为单刀双掷开关或者双刀双掷开关。
可选地，所述调控模块上设置有DP引脚、DM引脚、I2C-CLK引脚以及I2C-SDA引脚，所述双刀双掷开关将所述USB接口与所述DP引脚、DM引脚连接，或者，所述双刀双掷开关将所述USB接口与I2C-CLK引脚、I2C-SDA引脚。
为了实现上述目的，本申请还提供一种快速充电方法，应用于手持设备，所述手持设备包括第一充电模块、第二充电模块和电池，所述快速充电方法包括以下步骤：
手持设备检测到有充电器通过充电线与其形成通讯连接后，获取所述充电线的阻抗；
根据所述阻抗配置所述电池的充电参数，并根据所述充电参数控制所述第一充电模块对所述手持设备电池进行充电。
可选地，所述获取所述充电线的阻抗的步骤之前包括：
手持设备检测到有充电器通过充电线与其形成通讯连接后，检测所述充电器的充电端口类型；
在所述充电端口类型为专用充电端口时，控制切换模块将所述手持设备与所述充电器的通信模式切换成I2C主从机通信模式；
确定所述I2C主从机通信模式建立成功，获取所述充电器的最大输出电压以及最大输出电流。
可选地，所述根据所述阻抗配置所述手持设备的充电参数的步骤包括：
在所述阻抗小于预设阻抗时，根据所述阻抗所处的阻抗区间获取对应的所述第一充电模块的最大充电电流以及最大充电电压，其中，所述最大充电电流小于等于所述充电器的最大输出电流，所述最大充电电压小于等于所述充电器的最大输出电流的一半。
可选地，所述根据所述充电参数对所述手持设备电池进行充电的步骤包括：
判断所述手持设备的所述电池的当前电压是否达到预设电压；
在所述当前电压未达到预设电压时，启用所述第二充电模块对所述电池的进行恒流充电，直至达到所述预设电压；
在所述当前电压达到预设电压时，启用所述第一充电模块按照所述最大充电电流以及所述最大充电电压对所述电池进行充电。
可选地，所述启用所述第一充电模块按照所述最大充电电流以及所述最大充电电压对所述电池进行充电的步骤包括：
在所述电池的恒流充电阶段，在检测到所述电池的最大充电电压大于预设报警电压时，则减小所述充电器的最大输出电压；
在检测到所述电池的最大充电电压小于所述预设报警电流时，则增大所述充电器的最大输出电压。
可选地，所述启用所述第一充电模块按照所述最大充电电流以及所述最大充电电压对所述电池进行充电的步骤包括：
在所述电池的恒压充电阶段，降低所述预设报警电压值，在检测到所述电池的最大充电电压大于降低后的预设报警电压时，则减小所述充电器的最大输出电压；
在检测到所述电池的最大充电电压小于所述降低后的预设报警电流时，则增大所述充电器的最大输出电压。
可选地，所述启用所述第一充电模块按照所述最大充电电流以及所述最大充电电压对所述电池进行充电的步骤包括：
在所述电池的恒压充电阶段，在所述电池的当前电压达到预定目标电压，且所述第一充电模块的最大充电电流小于预定电流时，控制所述第一充电模块断开，启用所述第二充电模块对所述电池进行充电直至充电结束。
为实现上述目的，本申请还提供一种手持设备，所述手持设备包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的手持设备的充电程序，所述手持设备的充电程序被所述处理器执行时实现如上述任一项所述的快速充电方法的步骤。
为实现上述目的，本申请还提供一种可读存储介质，所述计算机可读存储介质上存储有手持设备的充电程序，所述手持设备的充电程序被处理器执行时实现如上述任一项所述的快速充电方法的步骤。
本申请的技术方案通过获取所述充电线的阻抗，并根据所述阻抗配置所述电池的充电参数，根据所述充电参数对所述电池进行快速充电，从而提高了电池的充电效率，本申请中，所述充电线可以选用常见的USB A-Micro B充电线，只需所述充电器的微控制器支持I2C主从机通信模式，所述手持设备即可对所述充电器的输出电压以及输出电流进行配置，并控制所述第一充电模块按照所述充电器的输出电压以及输出电流配置充电电流以及充电电压，从而使得本申请的系统及方法具有广泛使用性，且降低了生产成本，不用像现有的Typc C充电器一样需要增加专门的逻辑控制芯片。在所述手持设备的USB接口为Type C接口时，只需要通过Type C将所述USB A-Micro B充电线的Micro B转接至所述Type C接口即可实现上述的快充充电。
附图说明
图1是本申请实施例方案涉及的硬件运行环境的装置结构示意图；
图2为本申请快速充电系统的电路框架示意图；
图3为本申请快速充电方法的一实施例的细化流程示意图；
图4为本申请快速充电方法的另一实施例的细化流程示意图；
图5为本申请快速充电方法步骤S50的一实施例的细化流程示意图。
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
本申请的主要技术方案：
手持设备检测到有充电器通过充电线与其形成通讯连接后，获取所述充电线的阻抗；
根据所述阻抗配置电池的充电参数，并根据所述充电参数控制第一充电模块对所述手持设备电池进行充电。
手持设备如手机只能通过Typc C充电线进行快速充电，而应用广泛的USB A-micro B充电线只能对手持设备实现常规充电，而不能实现快速充电的效果。
本申请的技术方案通过获取所述充电线的阻抗，并根据所述阻抗配置所述电池的充电参数，根据所述充电参数对所述电池进行快速充电，从而提高了电池的充电效率，本申请中，所述充电线可以选用常见的USB A-Micro B充电线，只需所述充电器的微控制器支持I2C主从机通信模式，所述手持设备即可对所述充电器的输出电压以及输出电流进行配置，并控制所述第一充电模块按照所述充电器的输出电压以及输出电流配置充电电流以及充电电压，从而使得本申请的系统及方法具有广泛使用性，且降低了生产成本，不用像现有的Typc C充电器一样需要增加专门的逻辑控制芯片。在所述手持设备的USB接口为Type C接口时，只需要通过Type C将所述USB A-Micro B充电线的Micro B转接至所述Type C接口即可实现上述的快充充电。
如图1所示，图1是本申请实施例方案涉及的手持设备的硬件运行环境示意图。
本申请实施例手持设备可为移动手持设备，比如手机、平板电脑、便携式笔记本电脑等。如图1所示，所述手持设备可以包括：处理器1001，例如CPU，网络接口1004，用户接口1003，存储器1005，通信总线1002。其中，通信总线1002用于实现这些组件之间的连接通信。用户接口1003可以包括显示屏（Display）、输入单元比如键盘（Keyboard）、遥控器，可选用户接口1003还可以包括标准的有线接口、无线接口。网络接口1004可选的可以包括标准的有线接口、无线接口（如存储器（non-volatile memory），例如磁盘存储器。存储器1005可选的还可以是独立于前述处理器1001的存储装置。
本领域技术人员可以理解，图1中示出的手持设备的结构并不构成对手持设备的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
如图1所示，作为一种计算机存储介质的存储器1005中可以包括操作系统、网络通信模块、用户接口模块以及手持设备的充电程序。
在图1所示的手持设备中，网络接口1004主要用于连接后台服务器，与后台服务器进行数据通信；用户接口1003主要用于连接客户端（用户端），与客户端进行数据通信；而处理器1001可以用于调用存储器1005中存储的手持设备的充电程序，并执行以下操作：
手持设备检测到有充电器通过充电线与其形成通讯连接后，获取所述充电线的阻抗；
根据所述阻抗配置电池的充电参数，并根据所述充电参数控制第一充电模块对所述手持设备电池进行充电。
进一步地，处理器1001可以调用存储器1005中存储的手持设备的充电程序，还执行以下操作：
手持设备检测到有充电器通过充电线与其形成通讯连接后，检测所述充电器的充电端口类型；
在所述充电端口类型为专用充电端口时，控制切换模块将所述手持设备与充电器的通信模式切换成I2C主从机通信模式；
确定所述I2C主从机通信模式建立成功，获取所述充电器的最大输出电压以及最大输出电流。
进一步地，处理器1001可以调用存储器1005中存储的手持设备的充电程序，还执行以下操作：
向所述充电器发送验证信息；
在接收到所述充电器返回的确认信息后，确定所述I2C主从机通信模式建立成功。
进一步地，处理器1001可以调用存储器1005中存储的手持设备的充电程序，还执行以下操作：
在所述阻抗小于预设阻抗时，根据所述阻抗所处的阻抗区间获取对应的所述第一充电模块的最大充电电流以及最大充电电压，其中，所述最大充电电流小于等于所述充电器的最大输出电流，所述最大充电电压小于等于所述充电器的最大输出电流的一半。
进一步地，处理器1001可以调用存储器1005中存储的手持设备的充电程序，还执行以下操作：
判断所述手持设备电池的当前电压是否达到预设电压；
在所述当前电压未达到预设电压时，启用第二充电模块对电池的进行恒流充电，直至达到所述预设电压；
在所述当前电压达到预设电压时，启用所述第一充电模块按照所述最大充电电流以及所述最大充电电压对电池进行充电。
进一步地，处理器1001可以调用存储器1005中存储的手持设备的充电程序，还执行以下操作：
在电池的恒流充电阶段，在检测到电池的最大充电电压大于预设报警电压时，则减小所述充电器的最大输出电压；
在检测到电池的最大充电电压小于预设报警电流时，则增大所述充电器的最大输出电压。
进一步地，处理器1001可以调用存储器1005中存储的手持设备的充电程序，还执行以下操作：
在电池的恒压充电阶段，降低所述预设报警电压值，在检测到电池的最大充电电压大于降低后的预设报警电压时，则减小所述充电器的最大输出电压；
在检测到电池的最大充电电压小于降低后的预设报警电流时，则增大所述充电器的最大输出电压。
进一步地，处理器1001可以调用存储器1005中存储的手持设备的充电程序，还执行以下操作：
在电池的恒压充电阶段，在电池的当前电压达到预定目标电压，且所述第一充电模块的最大充电电流小于预定电流时，控制所述第一充电模块断开，启用所述第二充电模块对电池进行充电直至充电结束。
如图2所示，本申请提供一种手持设备10，以及用于手持设备10的快速充电系统100，所述快速充电系统100包括充电器20、充电线和设备主板端，所述充电器20与设备主板端的USB接口11相连；所述设备主板端包括第一充电模块12、第二充电模块13、调控模块14、USB接口11以及电池15，所述USB接口11分别与第一充电模块12、第二充电模块13以及调控模块14相连，所述第一充电模块12和第二充电模块13均与调控模块14相连；所述电池15分别与第一充电模块12、第二充电模块13以及调控模块14相连。
在本实施例中，所述手持设备10可以是手机、平板电脑等便携式设备，所述手持设备10的所述设备主板端上设置有USB接口11，所述USB接口11具体可为Micro B接口或者Type C接口等；所述USB接口11与所述调控模块14连接，以供所述调控模块14接收到所述USB接口11传输过来的信号后，控制所述第一充电模块12或者第二充电模块13对所述电池15充电；所述充电器20用于将所述手持设备10与市电连接，以给所述手持设备10进行充电，所述充电器20为可以支持QC、PE等快充协议的快速充电器，以对所述手持设备10进行快速充电。
可以理解的是，本实施例手持设备100可以实现双无线同时充电，如所述第一充电模块12和所述第二充电模块13可以均为无线充电芯片，也可以实现有线、无线双充电方式同时充电，如所述第一充电模块12为有线充电芯片，所述第二充电模块13为无线充电芯片。
可选的，本申请中的电池16包括电芯和电池16保护板，所述电池16通过所述调控模块15相连，本实施例所述调控模块14为SYS模块，具体所述电池16通过SYS模块的Bat-temp引脚(即Battery和Temperature缩写)相连，从而对实现所述电池16温度的实时监控。
可选地，所述快速充电系统100还包括充电线30，所述充电器20包括微控制器21以及充电器接口22，所述充电线40两端分别插接于所述充电器接口22以及USB接口11。所述充电线40可以是USB A-Micro B充电线40、也可以是Type C充电线40，也可以是其他充电线40，只需与所述USB接口11适配即可。
可选地，所述设备主板端还包括切换模块40，所述切换模块40连接所述USB接口11以及所述调控模块15。可选地，所述切换模块40为单刀双掷开关或者双刀双掷开关。所述调控模块15上设置有DP引脚、DM引脚、I2C-CLK引脚以及I2C-SDA引脚，所述双刀双掷开关将所述充电接口与所述DP引脚、DM引脚连接，或者，所述双刀双掷开关将所述充电接口与I2C-CLK引脚、I2C-SDA引脚。
在本实施例中，所述DP引脚、DM引脚、I2C-CLK引脚以及I2C-SDA引脚用于进行信号传输，在所述DP引脚、DM引脚通过所述切换模块40连接至所述USB接口11时，所述调控模块15工作于DP/ DM工作模式，在所述I2C-CLK引脚以及I2C-SDA引脚通过所述切换模块40连接至所述USB接口11时，所述调控模块15工作于I2C主从机通讯模式，此时，所述手持设备为主机，所述充电器为从机。
在本实施例中，当所述调控模块15工作于I2C主从机通讯模式时，可以与所述充电器20进行主从机的信息交互，所述调控模块15可以基于所述I2C主从机通讯模式检测所述充电器20是否通过专用充电端口（DCP）进行充电，所述调控模块15还可以通过向所述充电器20发送验证信息，并在接收到所述充电器20返回的确认信息时，确定所述手持设备10与所述充电器20之间建立所述I2C主从机通讯模式，所述调控模块15还可以基于所述I2C主从机通讯模式配置所述充电器20的最大输出电压以及最大输出电流。
如图3所示，基于上述手持设备以及用于手持设备的快速充电系统，提出本申请的快速充电方法，应用于手持设备，所述手持设备包括第一充电模块、第二充电模块和电池，所述快速充电方法的第1实施例包括以下步骤：
步骤S10，手持设备检测到有充电器通过充电线与其形成通讯连接后，获取所述充电线的阻抗。
在本实施例中，在所述充电器连接市电并插入所述手持设备的USB接口，与所述手持设备形成通讯连接后，可以获取所述充电线的阻抗，具体地，向所述充电线中输入的已知电流，并获取充电线连接的两端也即所述充电器端至所述第一充电模块端之间的压差，根据欧姆定律，所述充电线的阻抗的所述压差与所述已知电流的商，可以理解，也可以通过其他方式获取所述充电线的阻抗，在此不再赘述。
步骤S20，根据所述阻抗配置所述电池的充电参数，并根据所述充电参数控制第一充电模块对所述手持设备的所述电池进行充电。
在本实施例中，获取所述充电线的阻抗后，可以根据所述阻抗配置所述充电器的输出电压以及输出电流，并将所述输出电流以及所述输出电压传递给所述第一充电模块，所述第一充电模块根据所述充电器的输出电流以及所述输出电压配置所述电池的充电电压以及充电电流，本实施例中，采用半压直充的方式对所述电池进行大电流快速充电，其中，所述充电电压小于等于所述输出电压的一半，所述充电电流小于等于所述充电器的输出电流，从而通过所述充电器的最大电流实现对电池的快速充电。
综上所述，本申请的技术方案通过获取所述充电线的阻抗，并根据所述阻抗配置所述电池的充电参数，根据所述充电参数对所述电池进行快速充电，从而提高了电池的充电效率，本申请中，所述充电线可以选用常见的USB A-Micro B充电线，只需所述充电器的微控制器支持I2C主从机通信模式，所述手持设备即可对所述充电器的输出电压以及输出电流进行配置，并控制所述第一充电模块按照所述充电器的输出电压以及输出电流配置充电电流以及充电电压，从而使得本申请的系统及方法具有广泛使用性，且降低了生产成本，不用像现有的Typc C充电器一样需要增加专门的逻辑控制芯片。在所述手持设备的USB接口为Type C接口时，只需要通过Type C将所述USB A-Micro B充电线的Micro B转接至所述Type C接口即可实现上述的快充充电。
如图4所示，基于上述第1实施例，提出本申请的快速充电方法的第2实施例，所述步骤S10之前包括：
步骤S30，手持设备检测到有充电器通过充电线与其形成通讯连接后，检测所述充电器的充电端口类型；
步骤S40，在所述充电端口类型为专用充电端口时，控制切换模块将所述手持设备与所述充电器的通信模式切换成I2C主从机通信模式；
步骤S50，确定所述I2C主从机通信模式建立成功，获取所述充电器的最大输出电压以及最大输出电流。
在本实施例中，手持设备检测到有充电器通过充电线与其形成通讯连接后，检测所述充电器的充电端口类型，在所述充电端口类型为专用充电端口时，则提高所述充电器中的DP/DM的电压值预定电压如0.6V，以将所述专用充电端口作为所述充电器的充电端口，并在持续预设的去抖时长后，控制切换模块将所述手持设备与充电器的通信模式切换成I2C主从机通信模式，并在确定所述I2C主从机通信模式建立成功后，获取所述充电器的最大输出电压以及最大输出电流，从而可以根据所述充电器的最大输出电压以及最大输出电流以及所述阻抗配置所述电池的充电参数。
在本实施例中，在所述充电端口类型为USB充电端口时，则控制所述充电器对所述电池进行小于等于0.5A的恒流充电，在所述充电端口类型为CDP充电端口时，则控制所述充电器对所述电池进行小于等于0.5A的恒流充电。
如图5所示，基于上述第1-2实施例，提出本申请的快速充电方法的第3实施例，所述步骤S50包括：
步骤S51，向所述充电器发送验证信息；
步骤S52，在接收到所述充电器返回的确认信息后，确定所述I2C主从机通信模式建立成功。
在本实施例中，向所述充电器发送验证信息，所述验证信息携带有与预设的所述充电器的标识信息如充电器ID，在所述标识信息与所述充电器中携带的标识信息匹配时，则所述充电器向所述手持设备返回确认信息后，则可以确定所述充电器为可以进行半压直充类型的专用充电器，从而可以进行后续的获取所述充电器的最大输出电压以及最大输出电流的步骤。
在本实施例中，当所述手持设备向所述充电器发送验证信息后，在预设时间间隔内没有接收到所述充电器返回的确认信息，此时，进一步检测所述充电器是否支持快充协议如PE快充协议或者QC快充协议，在所述充电器支持快充协议时，则根据对应的快充协议对所述电池进行充电，在所述充电器不支撑快充协议时，则通过常规的充电方式对所述电池进行充电。
基于上述第1-3实施例，提出本申请的快速充电方法的第4实施例，所述步骤S20包括：
步骤S21，在所述阻抗小于预设阻抗时，根据所述阻抗所处的阻抗区间获取对应的所述第一充电模块的最大充电电流以及最大充电电压，其中，所述最大充电电流小于等于所述充电器的最大输出电流，所述最大充电电压小于等于所述充电器的最大输出电流的一半。
在本实施例中，所述预设阻抗例如可为0.5Ω，在所述充电线的阻抗小于0.5Ω时，根据所述阻抗所处的阻抗区间获取对应的所述第一充电模块的最大充电电流以及最大充电电压，其中，所述最大充电电流小于等于所述充电器的最大输出电流，所述最大充电电压小于等于所述充电器的最大输出电流的一半，并根据所述最大充电电流以及最大充电电压对所述电池进行大电流半压充电。
在本实施例中，在所述阻抗大于预设阻抗时，表明所述充电线不适合通过半压充电的方式对所述电池进行充电，此时，进一步检测所述充电器是否支持快充协议如PE快充协议或者QC快充协议，在所述充电器支持快充协议时，则根据对应的快充协议对所述电池进行充电，在所述充电器不支撑快充协议时，则通过常规的充电方式对所述电池进行充电。
基于上述第1-4实施例，提出本申请的快速充电方法的第5实施例，所述步骤S20包括：
步骤S22，判断所述手持设备的所述电池的当前电压是否达到预设电压；
步骤S23，在所述当前电压未达到预设电压时，启用第二充电模块对电池的进行恒流充电，直至达到所述预设电压；
步骤S24，在所述当前电压达到预设电压时，启用所述第一充电模块按照所述最大充电电流以及所述最大充电电压对所述电池进行充电。
在本实施例中，所述预设电压例如可为3.5V，在所述当前电压未达到3.5V时，启用所述第一充电模块对所述电池进行大电流半压直充，可能损坏所述电池，因此，启用第二充电模块对电池的进行恒流充电，直至所述电池的当前电压达到所述预设电压3.5V；在所述当前电压达到预设电压3.5V后，关闭所述第二充电模块，启用所述第一充电模块按照所述最大充电电流以及所述最大充电电压对电池进行充电。
基于上述第1-5实施例，提出本申请的快速充电方法的第6实施例，所述步骤S24包括：
步骤S241，在所述电池的恒流充电阶段，在检测到所述电池的最大充电电压大于预设报警电压时，则减小所述充电器的最大输出电压；
步骤S242，在检测到所述电池的最大充电电压小于所述预设报警电流时，则增大所述充电器的最大输出电压。
在本实施例中，通过检测所述电池的当前电压，以判断所述电池当期处于何种充电阶段，在当前电压小于预设电压时，则确定所述电池处于预充电阶段，例如，所述预设电压可为3.5V；在当前电压大于预设电压且小于预设目标电压时，则确定所述电池处于恒流充电阶段，所述预设目标电压可以是等于或者略小于所述电池满充后的端电压；在当前电压大于所述预设目标电压且所述电池的充电电流小于预设电流时，则确定所述电池处于恒压充电阶段；在获取到所述电池的当期充电阶段后，控制对应的充电回路导通，从而有效提高所述电池的充电效率。
在本实施例中，在电池的恒流充电阶段，在检测到电池的最大充电电压大于预设报警电压时，可能损坏电池，则减小所述充电器的最大输出电压，由于所述最大充电电压等于所述最大输出电压的一半，因此，通过减所述充电器的最大输出电压，可以对应的减小所述最大充电电压，以使所述最大充电电压小于所述预设报警电压。在检测到电池的最大充电电压小于预设报警电流时，则增大所述充电器的最大输出电压，由于所述充电线的阻抗是固定的，因此，增大所述充电器的最大输出电压，可以增大所述充电器的最大输出电流，又因为，所述第一充电模块的最大充电电流等于小于所述充电器的最大输出电流，因此，可以增大所述充电芯片的最大充电电流，以提高对所述电池的充电效率。
基于上述第1-6实施例，提出本申请的快速充电方法的第7实施例，所述步骤S24包括：
步骤S243，在所述电池的恒压充电阶段，降低所述预设报警电压值，在检测到所述电池的最大充电电压大于降低后的预设报警电压时，则减小所述充电器的最大输出电压；
步骤S244，在检测到所述电池的最大充电电压小于所述降低后的预设报警电流时，则增大所述充电器的最大输出电压。
在本实施例中，在电池的恒压充电阶段，此时，所述电池已经接近满充的状态，因此，需要降低所述预设报警电压值，以免对电池产生损伤，同时，在检测到电池的最大充电电压大于降低后的预设报警电压时，则减小所述充电器的最大输出电压，以较小所述最大充电电压；在检测到电池的最大充电电压小于降低后的预设报警电流时，则增大所述充电器的最大输出电压，以提高所述最大充电电流，提高对电池的充电效率。
基于上述第1-7实施例，提出本申请的快速充电方法的第8实施例，所述步骤S24包括：
步骤S245，在所述电池的恒压充电阶段，在所述电池的当前电压达到预定目标电压，且所述第一充电模块的最大充电电流小于预定电流时，控制所述第一充电模块断开，启用所述第二充电模块对所述电池进行充电直至充电结束。
在本实施例中，在电池的恒压充电阶段的后半阶段，在电池的当前电压达到预定目标电压，也即，所述电池已经接近满充的状态，且所述第一充电模块的最大充电电流小于预定电流时，也即，此时电量较难进入到电池内部，则控制所述第一充电模块断开，启用所述第二充电模块对电池进行恒流充电，直至充电结束。
为实现上述目的，本申请还提供一种手持设备，所述手持设备包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的手持设备的充电程序，所述手持设备的充电程序被所述处理器执行时实现如上所述的快速充电方法的步骤。
为实现上述目的，本申请还提供一种可读存储介质，所述计算机可读存储介质上存储有手持设备的充电程序，所述手持设备的充电程序被处理器执行时实现如上所述的快速充电方法的步骤。
上述本申请实施例序号仅仅为了描述，不代表实施例的优劣。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在如上所述的一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台手持设备(可以是电视机，手机，计算机，服务器，手持设备，或者网络设备等)执行本申请各个实施例所述的方法。
以上仅为本申请的可选实施例，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (14)

  1. 一种用于手持设备的快速充电系统，其中，包括充电器、充电线和设备主板端，所述充电器与设备主板端的USB接口相连；所述设备主板端包括第一充电模块、第二充电模块、调控模块、USB接口以及电池，所述USB接口分别与第一充电模块、第二充电模块以及调控模块相连，所述第一充电模块和第二充电模块均与调控模块相连；所述电池分别与第一充电模块、第二充电模块以及调控模块相连；所述充电器包括微控制器以及充电器接口，所述充电线两端分别插接于所述充电器接口以及USB接口。
  2. 如权利要求1所述的快速充电系统，其中，所述设备主板端还包括切换模块，所述切换模块连接所述USB接口以及所述调控模块。
  3. 一种手持设备，其中，所述设备主板端包括第一充电模块、第二充电模块、调控模块、USB接口以及电池，所述USB接口分别与第一充电模块、第二充电模块以及调控模块相连，所述第一充电模块和第二充电模块均与调控模块相连；所述电池分别与第一充电模块、第二充电模块以及调控模块相连，所述USB接口还设置为连接到内置有微控制器的外部充电器的充电接口上。
  4. 如权利要求3所述的手持设备，其中，所述设备主板端还包括切换模块，所述切换模块连接所述USB接口以及所述调控模块。
  5. 如权利要求4所述的手持设备，其中，所述切换模块为单刀双掷开关或者双刀双掷开关。
  6. 如权利要求5所述的手持设备，其中，所述调控模块上设置有DP引脚、DM引脚、I2C-CLK引脚以及I2C-SDA引脚，所述双刀双掷开关将所述USB接口与所述DP引脚、DM引脚连接，或者，所述双刀双掷开关将所述USB接口与I2C-CLK引脚、I2C-SDA引脚。
  7. 一种快速充电方法，应用于手持设备，所述手持设备包括第一充电模块、第二充电模块和电池，其中，所述快速充电方法包括以下步骤：
    手持设备检测到有充电器通过充电线与其形成通讯连接后，获取所述充电线的阻抗；以及
    根据所述阻抗配置所述电池的充电参数，并根据所述充电参数控制所述第一充电模块对所述手持设备的所述电池进行充电。
  8. 如权利要求7所述的快速充电方法，其中，所述获取所述充电线的阻抗的步骤之前包括：
    手持设备检测到有充电器通过充电线与其形成通讯连接后，检测所述充电器的充电端口类型；
    在所述充电端口类型为专用充电端口时，控制切换模块将所述手持设备与所述充电器的通信模式切换成I2C主从机通信模式；以及
    确定所述I2C主从机通信模式建立成功，获取所述充电器的最大输出电压以及最大输出电流。
  9. 如权利要求8所述的快速充电方法，其中，所述根据所述阻抗配置所述手持设备的充电参数的步骤包括：
    在所述阻抗小于预设阻抗时，根据所述阻抗所处的阻抗区间获取对应的所述第一充电模块的最大充电电流以及最大充电电压，其中，所述最大充电电流小于等于所述充电器的最大输出电流，所述最大充电电压小于等于所述充电器的最大输出电流的一半。
  10. 如权利要求9所述的快速充电方法，其中，所述根据所述充电参数对所述手持设备的所述电池进行充电的步骤包括：
    判断所述手持设备的所述电池的当前电压是否达到预设电压；
    在所述当前电压未达到预设电压时，启用所述第二充电模块对所述电池的进行恒流充电，直至达到所述预设电压；以及
    在所述当前电压达到预设电压时，启用所述第一充电模块按照所述最大充电电流以及所述最大充电电压对所述电池进行充电。
  11. 如权利要求10所述的快速充电方法，其中，所述启用所述第一充电模块按照所述最大充电电流以及所述最大充电电压对所述电池进行充电的步骤包括：
    在所述电池的恒流充电阶段，在检测到所述电池的最大充电电压大于预设报警电压时，则减小所述充电器的最大输出电压；以及
    在检测到所述电池的最大充电电压小于所述预设报警电流时，则增大所述充电器的最大输出电压。
  12. 如权利要求10所述的快速充电方法，其中，所述启用所述第一充电模块按照所述最大充电电流以及所述最大充电电压对所述电池进行充电的步骤包括：
    在所述电池的恒压充电阶段，降低所述预设报警电压值，在检测到所述电池的最大充电电压大于降低后的预设报警电压时，则减小所述充电器的最大输出电压；以及
    在检测到所述电池的最大充电电压小于所述降低后的预设报警电流时，则增大所述充电器的最大输出电压。
  13. 如权利要求10所述的快速充电方法，其中，所述启用所述第一充电模块按照所述最大充电电流以及所述最大充电电压对所述电池进行充电的步骤包括：
    在所述电池的恒压充电阶段，在所述电池的当前电压达到预定目标电压，且所述第一充电模块的最大充电电流小于预定电流时，控制所述第一充电模块断开，启用所述第二充电模块对所述电池进行充电直至充电结束。
  14. 一种手持设备，其中，所述手持设备包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的手持设备的充电程序，所述手持设备的充电程序被所述处理器执行时实现以下步骤：
    手持设备检测到有充电器通过充电线与其形成通讯连接后，获取所述充电线的阻抗；以及
    根据所述阻抗配置所述电池的充电参数，并根据所述充电参数控制所述第一充电模块对所述手持设备的所述电池进行充电。
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