WO2018053724A1 - Terminal mobile, procédé de charge et système de charge - Google Patents

Terminal mobile, procédé de charge et système de charge Download PDF

Info

Publication number
WO2018053724A1
WO2018053724A1 PCT/CN2016/099614 CN2016099614W WO2018053724A1 WO 2018053724 A1 WO2018053724 A1 WO 2018053724A1 CN 2016099614 W CN2016099614 W CN 2016099614W WO 2018053724 A1 WO2018053724 A1 WO 2018053724A1
Authority
WO
WIPO (PCT)
Prior art keywords
charging
charging current
management chip
battery management
current
Prior art date
Application number
PCT/CN2016/099614
Other languages
English (en)
Chinese (zh)
Inventor
雷振飞
王向东
孙伟
Original Assignee
北京小米移动软件有限公司
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 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN201680000894.1A priority Critical patent/CN108370171B/zh
Priority to PCT/CN2016/099614 priority patent/WO2018053724A1/fr
Publication of WO2018053724A1 publication Critical patent/WO2018053724A1/fr

Links

Images

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
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04—Regulation of charging current or voltage

Definitions

  • the present disclosure relates to the field of charging technologies, and in particular, to a mobile terminal, a charging method, and a charging system.
  • the charger is a charging device composed of a power adapter and a charging cable, and in order to improve the portability of the charger, the power adapter and the charging cable are usually in a detachable structure.
  • the present disclosure provides a mobile terminal, a charging method, and a charging system.
  • the technical solution is as follows:
  • a mobile terminal in a first aspect, includes: a hardware charging interface, a battery management chip electrically connected to the hardware charging interface, and a battery electrically connected to the battery management chip;
  • a hardware charging interface for receiving a DC voltage transmitted by the power adapter through the charging line; an input DC voltage to the battery management chip;
  • a battery management chip configured to calculate an impedance of the charging line according to the actual voltage value of the collected DC voltage and the actual current value
  • the battery management chip is also used to set the charging current according to the impedance of the charging line; the battery is charged according to the set charging current.
  • the battery management chip is electrically connected to the hardware charging interface through a VBus (Voltage Bus, voltage bus pin) and GND (GROUND, ground pin);
  • VBus Voltage Bus, voltage bus pin
  • GND GROUND, ground pin
  • a battery management chip for receiving a DC voltage input through a hardware charging interface through the VBus
  • the battery management chip is further configured to collect at least two sets of test data at the VBus, each set of test data includes an actual voltage value and an actual current value at the VBus; and the impedance of the charging line is calculated according to at least two sets of test data.
  • the battery management chip is further electrically connected to the hardware charging interface through D+ (Data+, data plus pin) and D-(Data-, data minus pin);
  • the battery management chip is further configured to send a test command to the power adapter through D+ or D- when detecting the connection with the power adapter, the test command is used to instruct the power adapter to output a constant voltage value of the DC voltage;
  • the battery management chip is further configured to charge the battery with the first charging current; collect the first test data at the VBus, the first test data includes the first actual voltage value V 1 at the VBus and the first actual current value I 1 ;
  • the battery management chip is further configured to charge the battery with the second charging current; collect the second test data at the VBus, the second test data includes the second actual voltage value V 2 and the second actual current value I 2 at the VBus;
  • a battery management chip configured to calculate an impedance of the charging line according to the first test data and the second test data
  • the impedance of the charging line (V 1 - V 2 ) / (I 2 - I 1 ), and the first charging current ⁇ the second charging current ⁇ the rated charging current, and the rated charging current refers to the maximum charging current for charging the battery.
  • the battery management chip is configured to determine a charging current down-regulation coefficient according to the impedance of the charging line; the charging current is set according to the charging current lowering coefficient and the rated charging current, and the rated charging current refers to a maximum charging current for charging the battery.
  • the battery management chip is electrically connected to the processor
  • a battery management chip for transmitting a set charging current to the processor
  • the processor is configured to control the display screen to display a prompt message when the set charging current is less than the preset current threshold, and the prompt information is used to prompt the user to replace the charging line.
  • the mobile terminal further includes a temperature sensor, the temperature sensor is electrically connected to the processor, and the battery control chip is electrically connected to the processor;
  • the processor is configured to obtain an ambient temperature collected by the temperature sensor; when the ambient temperature is greater than the preset temperature threshold, send a control command to the battery management chip, where the control command is used to indicate that the set charging current is lowered;
  • the battery management chip is also used to lower the set charging current according to the control command.
  • a charging method for the mobile terminal according to the first aspect, the method comprising:
  • the DC voltage is passed by the power adapter through the charging line Hardware charging interface transmission;
  • the battery is charged according to the set charging current.
  • the impedance of the charging line is calculated according to the actual voltage value of the collected DC voltage and the actual current value, including:
  • each set of test data including an actual voltage value and an actual current value at the VBus;
  • the impedance of the charging line is calculated based on at least two sets of test data.
  • At least two sets of test data at the VBus are collected, including:
  • Calculate the impedance of the charging line based on at least two sets of test data including:
  • the impedance of the charging line (V 1 - V 2 ) / (I 2 - I 1 ), and the first charging current ⁇ the second charging current ⁇ the rated charging current, and the rated charging current refers to the maximum charging current for charging the battery.
  • the charging current is set according to the impedance of the charging line, including:
  • the charging current is set according to the charging current down-regulation coefficient and the rated charging current.
  • the rated charging current refers to the maximum charging current for charging the battery.
  • the method further includes:
  • the set charging current is sent to the processor, and the processor is configured to control the display screen to display a prompt message when the set charging current is less than the preset current threshold, and the prompt information is used to prompt the user to replace the charging line.
  • the method further includes:
  • the set charging current is lowered.
  • a charging system including a power adapter and a mobile terminal;
  • the power adapter and the mobile terminal are connected by a charging line;
  • the mobile terminal includes the mobile terminal as described in the first aspect.
  • the battery management chip inside the mobile terminal collects the actual voltage value and the actual current value of the input DC voltage before charging the battery, and further calculates the impedance of the charging line according to the actual voltage value and the actual current value, thereby resetting according to the impedance.
  • the charging current for charging the battery reduces the heat generation of the charging line during charging, and avoids the safety hazard caused by the inferior charging line charging when the inferior charging line with large impedance is used for charging, thereby improving the charging of the mobile terminal. Process security.
  • FIG. 1 is a block diagram showing the structure of a charging system provided by an exemplary embodiment
  • FIG. 2 is a block diagram showing the structure of a charging system provided by another exemplary embodiment
  • FIG. 3 is a block diagram showing the structure of a charging system provided by still another exemplary embodiment
  • FIG. 4 is a block diagram showing the structure of a charging system provided by still another exemplary embodiment
  • FIG. 5 shows a flow chart of a charging method provided by an exemplary embodiment
  • FIG. 6 shows a flow chart of a charging method provided by another exemplary embodiment
  • FIG. 7A is a flow chart showing a charging method provided by still another exemplary embodiment
  • FIG. 7B is a schematic view showing the implementation of the charging method shown in FIG. 7A;
  • FIG. 8 is a flow chart showing a charging method provided by still another exemplary embodiment
  • FIG. 9 is a structural block diagram of a mobile terminal according to an exemplary embodiment.
  • Multiple as referred to herein means two or more. "and/or”, describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately.
  • the symbol “/” generally indicates that the contextual object is an "or" relationship.
  • FIG. 1 is a block diagram showing the structure of a charging system provided by an exemplary embodiment.
  • the charging system includes a power adapter 110, a charging line 120, and a mobile terminal 130, wherein the power adapter 110 and the mobile terminal 130 are connected by a charging line 120.
  • the power adapter 110 and the charging line 120 constitute a charger for charging the mobile terminal 130.
  • the power adapter 110 inputs an AC voltage (such as 220V through an internal voltage conversion chip (not shown).
  • the AC voltage is converted to a DC voltage (such as a 5V DC voltage) and transmitted to the mobile terminal 130 via the charging line 120.
  • the power adapter 110 and the charging line 120 are of a unitary structure or a separable structure.
  • the mobile terminal 130 includes a hardware charging interface 131 , a battery management chip 132 electrically connected to the hardware charging interface 131 , and a battery 133 electrically connected to the battery management chip 132 .
  • the mobile terminal 130 is connected to the charging line 120 through the hardware charging interface 131, thereby receiving the DC voltage transmitted by the power adapter 110 through the charging line 120, and inputting the DC voltage to the connected battery management chip 132.
  • the hardware charging interface 131 can be a USB (Universal Serial Bus) 2.0 interface, a USB 3.0 interface, a Type C interface, or a Lightning interface; correspondingly, the charging line 120 can be a USB 2.0.
  • USB 3.0 data line, Type C data line or Lightning data line the present disclosure does not define the type of hardware charging interface 131 and charging line 120.
  • the battery management chip 132 in the mobile terminal 130 is provided with a voltage and current detecting function. When receiving the input DC voltage, the battery management chip 132 can collect the actual voltage value and the actual current value of the DC voltage.
  • the battery management chip 132 further includes a charging current adjustment function, by which the battery management chip 132 adjusts (eg, down-regulates) the charging current according to the calculated impedance of the charging line 120, thereby passing the internal charging according to the adjusted charging current.
  • a battery charging circuit (not shown) charges the connected battery 133.
  • the battery management chip 132 lowers the charging current, and the decreasing ratio of the charging current is proportional to the impedance of the charging line 120, that is, the greater the impedance, the greater the proportion of the charging current is lowered.
  • the smaller the impedance the smaller the down regulation ratio of the charging current.
  • the mobile terminal 130 in FIG. 1 can also adjust the charging current according to the calculated impedance of the charging line. This disclosure is not limited thereto.
  • the battery management chip lowers the charging current due to the large impedance of the inferior charging line, thereby reducing the heat generation of the charging line and avoiding the excessive heat generation of the charging line. Security risks.
  • the battery management chip inside the mobile terminal collects the actual voltage value and the actual current value of the input DC voltage before charging the battery, and further calculates the charging line according to the actual voltage value and the actual current value.
  • the impedance is thus reset to the charging current of the battery charging according to the impedance, thereby reducing the heat generation of the charging line during charging, and avoiding the use of a poor quality charging line for charging, because the inferior charging line generates a large amount of heat.
  • the safety hazard caused by the safety of the mobile terminal is improved.
  • the battery management chip 132 includes VBus and GND, and the battery management chip 132 is electrically connected to the hardware charging interface 131 through VBus and GND.
  • the hardware charging interface 131 After receiving the DC voltage transmitted by the charging line 120, the hardware charging interface 131 inputs a DC voltage to the battery management chip 132 through the VBus. Accordingly, the battery management chip 132 receives the DC voltage through the VBus. The DC voltage flowing through the battery management chip 132 flows out of GND (low potential) and flows through the charging line 120 to the power adapter 110 to form a complete charging circuit.
  • GND low potential
  • the battery management chip 132 collects at least two sets of test data at the VBus, and calculates the impedance of the charging line according to the at least two sets of test data, wherein each set of test data includes simultaneous acquisition. The actual voltage value and actual current value at the VBus.
  • the battery management chip 132 calculates the impedance of the charging line 120 according to the two sets of test data;
  • the battery management chip 132 calculates an impedance reference value according to each set of test data, and averages n(n-1)/2 impedance reference values. The value is determined as the impedance of the charging line 120.
  • the battery management chip 132 further includes D+ and D-, and the battery management chip 132 is electrically connected to the hardware charging interface 131 through D+ and D-, and the D+ and D- are used for data or signal transmission.
  • the battery management chip 120 transmits a test command to the power adapter 110 via D+ or D- when detecting the connection with the power adapter, the test command is used for A DC voltage indicating that the power adapter 110 outputs a constant voltage value.
  • the test command further includes an output voltage value for indicating a DC voltage output by the power adapter 110 at the output voltage value, wherein the output voltage value is less than or equal to a maximum charging voltage of the mobile terminal.
  • the power adapter 110 converts the AC voltage into a DC voltage of a constant voltage value through an internal voltage conversion chip, and transmits a DC voltage to the mobile terminal 130 through the charging line 120.
  • the power adapter 110 while outputting a constant DC voltage, sends a feedback command to the mobile terminal 130 through an internal adapter management chip (not shown) for indicating that the DC voltage is being output at a constant voltage value. .
  • the battery management chip 132 has a charging current adjustment function.
  • the battery management chip 132 can adjust the charging current through a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transisto).
  • MOSFET Metal-Oxide-Semiconductor Field-Effect Transisto
  • the battery management chip 132 controls to charge the battery 133 with the first charging current, and during the charging process, the battery management chip 132 collects the first actual voltage value V 1 at the VBus and The first test data of the first actual current value I 1 .
  • the battery management chip 132 After collecting the first test data, the battery management chip 132 adjusts the charging current, controls charging of the battery 133 with the second charging current, and collects the second actual voltage value V 2 and the second actual current at the VBus during charging.
  • the second test data of value I 2 The second test data of value I 2 .
  • the first charging current and the second charging current are different, and the first charging current and the second charging current are both smaller than the rated charging current of the battery 133, and the rated charging current refers to a maximum charging current for charging the battery, for example, When the rated charging current is 1.5A, the first charging current is 0.5A and the second charging current is 0.8A.
  • the battery management chip 132 can still calculate the impedance of the charging line 120 according to the collected first test data and the second test data without knowing the accurate voltage value output by the power adapter 110, and because of the above formula V 1 , V 2 , I 1 and I 2 are actual measured values, and therefore, the calculated impedance is more accurate.
  • the battery management chip 132 After calculating the impedance of the charging line 120, the battery management chip 132 further determines a charging current reduction coefficient according to the impedance, and resets the charging current according to the charging current reduction coefficient and the rated charging current, so that the battery is set according to the set charging current. 133 charging.
  • the correspondence between the impedance and the charging current down-regulation coefficient is pre-stored in the battery management chip 132. The corresponding relationship is shown in Table 1.
  • the battery management chip outputs a constant direct current through the D+ or D- indicating power adapter. Pressing, and collecting at least two sets of test data at the VBus by adjusting the charging current, thereby calculating the impedance of the charging line according to the actual voltage value and the actual current value included in the test data, and ensuring the data used when calculating the charging line impedance. Both are actual measured values, which improves the accuracy of the calculated charging line impedance.
  • the battery management chip 132 in the mobile terminal 130 is also electrically connected to the processor 134. .
  • the set charging current is sent to the processor 134. Accordingly, the processor 134 receives the set charging current.
  • the processor 134 After receiving the set charging current, the processor 134 detects whether the charging current is less than a preset current threshold. When the charging current is less than the preset current threshold, the processor 134 controls the electrically connected display screen (not shown) The display prompt message prompts the user to replace the charging cable.
  • the battery management chip 132 may further send a charging current reduction coefficient to the processor, and the processor 134 determines the corresponding prompt mode according to the charging current reduction coefficient, and then prompts. For example, if the charging current reduction coefficient received by the processor is 0.7, the control display screen displays the text prompt information; for example, if the charging current reduction coefficient received by the processor is 0.3, the control display screen displays the animation prompt information.
  • the battery management chip sends the set charging current to the processor, so that the processor can display corresponding prompt information according to the charging current, prompting the user to replace the charging line as soon as possible, and avoiding the power caused by charging the inferior charging line. loss.
  • the temperature sensor 135 is further included in the mobile terminal 130, and the temperature sensor 135 is electrically connected to the processor 134.
  • the temperature sensor 135 collects the ambient temperature of the ambient environment, and correspondingly, the processor 134 acquires the ambient temperature from the temperature sensor 135.
  • the processor 134 After the processor 134 obtains the ambient temperature, detecting whether the ambient temperature is greater than a preset temperature threshold, when When the ambient temperature is greater than the preset temperature threshold, the processor 134 sends a control command to the battery management chip 132 to instruct the battery management chip to down-regulate the set charging current.
  • the processor 134 sends the control command to the battery management chip 132.
  • the battery management chip 132 performs down-regulation based on the received charging current based on the set charging current.
  • the battery management chip 132 reduces the determined charging current reduction coefficient by one level, and resets the charging current according to the adjusted charging current reduction coefficient.
  • the battery management chip 132 determines that the charging current reduction coefficient is 0.7 according to the impedance of the charging line 120. When receiving the control command sent by the processor 134, the battery management chip 132 adjusts the charging current reduction coefficient to 0.5.
  • the processor when the ambient temperature is high, the processor sends a control command to the battery management chip to instruct the battery management chip to reduce the charging current, thereby reducing the heat generated on the charging line and slowing the rising speed of the charging line temperature.
  • FIG. 5 shows a flow chart of a charging method provided by an exemplary embodiment.
  • the embodiment of the present disclosure is exemplified by the charging method applied to the mobile terminal 130 shown in FIGS. 1 to 4.
  • the charging method includes:
  • step 501 a DC voltage input by the hardware charging interface is received, and the DC voltage is transmitted by the power adapter to the hardware charging interface through the charging line.
  • step 502 the impedance of the charging line is calculated based on the actual voltage value of the collected DC voltage and the actual current value.
  • the battery management chip in the mobile terminal has a voltage and current measurement function.
  • the mobile terminal collects the actual voltage value and the actual current value through the battery management chip, and calculates according to the actual voltage value and the actual current value.
  • the impedance of the charging line is a voltage and current measurement function.
  • the battery management chip collects at least two sets of test data at the VBus, and calculates the impedance of the charging line according to at least two sets of test data, wherein each set of test data includes an actual voltage value and an actual current value at the VBus.
  • step 503 the charging current is set according to the impedance of the charging line.
  • the battery management chip in the mobile terminal has a current adjustment function, and after calculating the impedance of the charging line, the battery management chip accordingly lowers the charging current.
  • step 504 the battery is charged according to the set charging current.
  • the battery management chip in the mobile terminal includes a battery charging circuit, and the battery management chip charges the battery through the battery charging current according to the set charging current.
  • the battery management chip inside the mobile terminal collects the actual voltage value and the actual current value of the input DC voltage before charging the battery, and further calculates the charging line according to the actual voltage value and the actual current value.
  • the impedance is thus reset to the charging current of the battery charging according to the impedance, thereby reducing the heat generation of the charging line during charging, and avoiding the use of a poor quality charging line for charging, because the inferior charging line generates a large amount of heat.
  • the safety hazard caused by the safety of the mobile terminal is improved.
  • FIG. 6 shows a flow chart of a charging method provided by another exemplary embodiment.
  • the embodiment of the present disclosure is exemplified by the charging method applied to the mobile terminal 130 shown in FIGS. 1 to 4.
  • the charging method includes:
  • step 601 a test command is sent to the power adapter via D+ or D- upon detecting a connection to the power adapter.
  • the battery management chip sends a test command to the power adapter via D+ or D- when it detects a connection with the power adapter, which is used to indicate the power adapter.
  • a DC voltage that outputs a constant voltage value is used to indicate the power adapter.
  • the test command further includes an output voltage value for indicating a DC voltage output by the power adapter at the output voltage value, wherein the output voltage value is less than or equal to a maximum charging voltage of the mobile terminal.
  • step 602 a DC voltage input by the hardware charging interface is received, and the DC voltage is a constant DC voltage output by the power adapter according to the test command.
  • the power adapter After receiving the test command, the power adapter converts the AC voltage into a DC voltage of a constant voltage value through an internal voltage conversion chip, and transmits a DC voltage to the mobile terminal through the charging line.
  • the power adapter while outputting a constant DC voltage, sends a feedback command to the mobile terminal through the internal adapter management chip, and the feedback instruction is used to indicate that the DC voltage is being output at a constant voltage value.
  • the battery management chip in the mobile terminal receives the DC voltage input by the hardware charging interface.
  • step 603 the battery is charged with the first charging current, and the first test data at the VBus is collected.
  • the first test data includes the first actual voltage value V 1 and the first actual current value I 1 at the VBus.
  • the battery management chip After receiving the input constant DC voltage, the battery management chip charges the battery with the first charging current, and collects the first actual voltage value V 1 and the first actual current value I 1 at the battery management chip VBus during the charging process.
  • the first charging current is less than a rated charging current, and the rated charging current refers to a maximum charging current for charging the battery.
  • the second charging current to charge the battery, and a second test data acquisition VBus at a second test data comprises a second actual voltage value V 2 and the second actual current value I 2 VBus at.
  • the battery management chip charges the battery with the second charging current, and collects the second actual voltage value V 2 and the second actual current value I 2 at the VBus during the charging process.
  • the second charging current is the first charging current
  • the second charging current is less than the rated charging current.
  • step 605 the impedance of the charging line is calculated based on the first test data and the second test data.
  • R (V 1 - V 2 ) / (I 2 - I 1 ) can be obtained. Therefore, after measuring two sets of test data, the battery management chip can calculate the impedance of the charging line based on two sets of measurement data. . Since V 1 , V 2 , I 1 and I 2 are actual measured values in the above formula, the accuracy of the impedance calculated by the above method is high.
  • step 606 a charging current down-conversion coefficient is determined based on the impedance of the charging line.
  • the correspondence between the charging line impedance and the charging current lowering coefficient is stored in advance in the mobile terminal, and the correspondence is schematically shown in Table 1.
  • the battery management chip After calculating the charging line impedance, the battery management chip determines the charging current reduction coefficient according to the corresponding relationship.
  • the charging current is set according to the charging current down-regulation coefficient and the rated charging current, and the rated charging current refers to the maximum charging current for charging the battery.
  • the battery management chip After the charging current is down-regulated by the love, the battery management chip further sets the charging current according to the rated charging current of the mobile terminal.
  • step 608 the battery is charged according to the set charging current.
  • the battery management chip charges the battery according to the set charging current.
  • the battery management chip outputs a constant DC voltage through the D+ or D- indicating power adapter, and collects at least two sets of test data at the VBus by adjusting the charging current, thereby obtaining an actual voltage value according to the test data.
  • the actual current value is calculated to obtain the impedance of the charging line, and the data used to calculate the impedance of the charging line are all actual measured values, which improves the accuracy of the calculated charging line impedance.
  • the above step 607 may further include the following steps.
  • step 609 the set charging current is sent to the processor, and the processor is configured to control the display screen to display a prompt message when the set charging current is less than the preset current threshold, the prompt information is used to prompt the user to replace the charging line. .
  • the set charging current is sent to the processor.
  • the processor detects whether the charging current is less than a preset current threshold. When the charging current is less than the preset current threshold, the processor controls the display screen to display a corresponding prompt message, instructing the user to replace the charging line.
  • the battery management chip in the mobile terminal 72 transmits the set charging current to the processor; the processor detects that the set charging current is less than the pre-charge.
  • the current threshold is set and the display screen 73 is displayed with corresponding prompt information.
  • the battery management chip may further send a charging current reduction coefficient to the processor, and the processor may prompt according to the charging current lowering coefficient to determine a corresponding prompting mode. For example, if the charging current reduction coefficient received by the processor is 0.7, the control display screen displays the text prompt information; for example, if the charging current reduction coefficient received by the processor is 0.3, the control display screen displays the animation prompt information.
  • the battery management chip sends the set charging current to the processor, so that the processor can display corresponding prompt information according to the charging current, prompting the user to replace the charging line as soon as possible, and avoiding the power caused by charging the inferior charging line. loss.
  • step 610 a control command sent by the processor is received, where the control command is sent when the processor detects that the ambient temperature is greater than a preset temperature threshold.
  • the temperature sensor in the mobile terminal collects the ambient temperature of the external environment, and the processor acquires the ambient temperature from the temperature sensor.
  • the processor sends a control command to the battery management chip to instruct the battery management chip to lower the set charging current.
  • the processor sends the control command to the battery management chip.
  • step 611 the set charging current is lowered according to the control command.
  • the battery management chip after receiving the control instruction, reduces the determined charging current reduction coefficient by one level, and resets the charging current according to the adjusted charging current reduction coefficient.
  • the battery management chip determines that the charging current reduction coefficient is 0.7 according to the impedance of the charging line.
  • the battery management chip adjusts the charging current reduction coefficient to 0.5.
  • the processor when the ambient temperature is high, the processor sends a control command to the battery management chip to instruct the battery management chip to reduce the charging current, thereby reducing the heat generated on the charging line and slowing the rising speed of the charging line temperature.
  • FIG. 9 is a structural block diagram of a mobile terminal according to an exemplary embodiment.
  • the mobile terminal 900 can be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
  • the mobile terminal 900 can include one or more of the following components: a processing component 902, a memory 904, a power component 906, a multimedia component 908, an audio component 910, an input/output (I/O) interface 912, a sensor component 914, And a communication component 916.
  • Processing component 902 typically controls the overall operations of mobile terminal 900, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • Processing component 902 can include one or more processors 918 to execute instructions to perform all or part of the steps of the above described methods.
  • processing component 902 can include one or more modules to facilitate interaction between component 902 and other components.
  • processing component 902 can include a multimedia module to facilitate multimedia component 908 and processing Interaction between components 902.
  • the memory 904 is configured to store various types of data to support operations at the mobile terminal 900. Examples of such data include instructions for any application or method operating on the mobile terminal 900, contact data, phone book data, messages, pictures, videos, and the like.
  • the memory 904 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Disk Disk or Optical Disk.
  • Power component 906 provides power to various components of mobile terminal 900.
  • Power component 906 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for mobile terminal 900.
  • the power supply component 906 includes a battery management chip, and the charging method of the embodiment of the present disclosure is performed by the battery management chip.
  • the multimedia component 908 includes a screen that provides an output interface between the mobile terminal 900 and the user.
  • the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor can sense not only the boundaries of the touch or sliding action, but also the duration and pressure associated with the touch or slide operation.
  • the multimedia component 908 includes a front camera and/or a rear camera. When the mobile terminal 900 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 910 is configured to output and/or input an audio signal.
  • the audio component 910 includes a microphone (MIC) that is configured to receive an external audio signal when the mobile terminal 900 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode.
  • the received audio signal may be further stored in memory 904 or transmitted via communication component 916.
  • the audio component 910 also includes a speaker for outputting an audio signal.
  • the I/O interface 912 provides an interface between the processing component 902 and the peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to, a home button, a volume button, a start button, and a lock button.
  • Sensor component 914 includes one or more sensors for providing various aspects to mobile terminal 900 State assessment of the face.
  • sensor component 914 can detect an open/closed state of mobile terminal 900, relative positioning of components, such as a display and keypad of mobile terminal 900, and sensor component 914 can also detect a component of mobile terminal 900 or mobile terminal 900. The location changes, the presence or absence of contact of the user with the mobile terminal 900, the orientation or acceleration/deceleration of the mobile terminal 900, and the temperature change of the mobile terminal 900.
  • Sensor assembly 914 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact.
  • Sensor assembly 914 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 914 can also include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 916 is configured to facilitate wired or wireless communication between mobile terminal 900 and other devices.
  • the mobile terminal 900 can access a wireless network based on a communication standard such as Wi-Fi, 2G or 3G, or a combination thereof.
  • communication component 916 receives broadcast signals or broadcast associated information from an external broadcast management system via a broadcast channel.
  • communication component 916 also includes a near field communication (NFC) module to facilitate short range communication.
  • NFC near field communication
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • the mobile terminal 900 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), A programming gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation is used to perform the charging method performed by the processor in the above embodiments.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA programming gate array
  • controller microcontroller, microprocessor or other electronic component implementation is used to perform the charging method performed by the processor in the above embodiments.
  • non-transitory computer readable storage medium comprising instructions, such as a memory 904 comprising instructions executable by processor 918 of mobile terminal 900 to perform the processor of the above-described embodiments The charging method performed.
  • the non-transitory computer readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

La présente invention relève du domaine technique de la charge. La présente invention concerne un terminal mobile, un procédé de charge et un système de charge. Le terminal mobile comprend une interface de charge matérielle, une puce de gestion de batterie connectée électriquement à l'interface de charge matérielle, et une batterie connectée électriquement à la puce de gestion de batterie. L'interface de charge matérielle est utilisée pour recevoir une tension continue transmise par un adaptateur d'alimentation par l'intermédiaire d'un fil de charge, et pour entrer la tension continue dans la puce de gestion de batterie. La puce de gestion de batterie est utilisée pour calculer une impédance du fil de charge en fonction d'une valeur de tension réelle de la tension continue collectée et d'une valeur de courant réelle ; la puce de gestion de batterie est également utilisée pour régler un courant de charge en fonction de l'impédance du fil de charge, et pour charger la batterie en fonction du courant de charge défini. Au moyen des modes de réalisation de la présente invention, les risques de sécurité cachés provoqués par une chaleur élevée générée par un fil de charge de mauvaise qualité lorsqu'une charge est effectuée à l'aide du fil de charge de mauvaise qualité ayant une impédance élevée sont évités, ce qui permet d'améliorer la sécurité d'un processus de charge d'un terminal mobile.
PCT/CN2016/099614 2016-09-21 2016-09-21 Terminal mobile, procédé de charge et système de charge WO2018053724A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201680000894.1A CN108370171B (zh) 2016-09-21 2016-09-21 移动终端、充电方法及充电系统
PCT/CN2016/099614 WO2018053724A1 (fr) 2016-09-21 2016-09-21 Terminal mobile, procédé de charge et système de charge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/099614 WO2018053724A1 (fr) 2016-09-21 2016-09-21 Terminal mobile, procédé de charge et système de charge

Publications (1)

Publication Number Publication Date
WO2018053724A1 true WO2018053724A1 (fr) 2018-03-29

Family

ID=61690110

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/099614 WO2018053724A1 (fr) 2016-09-21 2016-09-21 Terminal mobile, procédé de charge et système de charge

Country Status (2)

Country Link
CN (1) CN108370171B (fr)
WO (1) WO2018053724A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220060034A1 (en) * 2019-05-07 2022-02-24 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Charging current control method, electronic device, and power supply device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104330638A (zh) * 2014-11-19 2015-02-04 惠州Tcl移动通信有限公司 一种原装充电线的识别方法及系统
CN105720631A (zh) * 2016-01-22 2016-06-29 珠海市魅族科技有限公司 一种电子终端及充电设备
CN105826955A (zh) * 2015-01-06 2016-08-03 宝创企业股份有限公司 适用于量测充电线阻抗的移动电源装置
CN105896666A (zh) * 2016-05-19 2016-08-24 北京小米移动软件有限公司 终端的充电方法、装置及终端
CN105914807A (zh) * 2016-03-21 2016-08-31 联想(北京)有限公司 减少充电电缆发热的方法及电子设备
CN106415983A (zh) * 2015-05-19 2017-02-15 华为技术有限公司 一种充电方法、充电装置和终端

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9419452B2 (en) * 2013-08-14 2016-08-16 Nokia Technologies Oy Charging connector overheat detection and protection apparatus
CN104638712B (zh) * 2013-11-15 2018-10-16 维沃移动通信有限公司 一种可防止usb插座在充电过程中过热的移动手持装置及方法
CN103887571A (zh) * 2014-03-28 2014-06-25 乐视致新电子科技（天津）有限公司 一种充电方式切换方法及装置
CN103941123A (zh) * 2014-04-15 2014-07-23 上海君世电气科技有限公司 一种电缆绝缘在线监测系统
US9997943B2 (en) * 2014-12-11 2018-06-12 Mediatek Inc. Electronic device and power adapter capable of communicating with each other, and associated charging system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104330638A (zh) * 2014-11-19 2015-02-04 惠州Tcl移动通信有限公司 一种原装充电线的识别方法及系统
CN105826955A (zh) * 2015-01-06 2016-08-03 宝创企业股份有限公司 适用于量测充电线阻抗的移动电源装置
CN106415983A (zh) * 2015-05-19 2017-02-15 华为技术有限公司 一种充电方法、充电装置和终端
CN105720631A (zh) * 2016-01-22 2016-06-29 珠海市魅族科技有限公司 一种电子终端及充电设备
CN105914807A (zh) * 2016-03-21 2016-08-31 联想(北京)有限公司 减少充电电缆发热的方法及电子设备
CN105896666A (zh) * 2016-05-19 2016-08-24 北京小米移动软件有限公司 终端的充电方法、装置及终端

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220060034A1 (en) * 2019-05-07 2022-02-24 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Charging current control method, electronic device, and power supply device

Also Published As

Publication number Publication date
CN108370171A (zh) 2018-08-03
CN108370171B (zh) 2022-02-22

Similar Documents

Publication Publication Date Title
WO2017016163A1 (fr) Procédé et appareil de charge
WO2016110145A1 (fr) Procédé et dispositif de réglage de luminosité d'écran
CN107196372B (zh) 充电方法及装置
KR102337009B1 (ko) 무선 충전 방법 및 단말기
CN111200304B (zh) 无线充电线圈的温度检测电路、方法、装置及存储介质
WO2021077611A1 (fr) Procédé de charge de batterie, appareil de charge de batterie et support de stockage
CN107681727B (zh) 电子设备的控制方法及装置
CN106786871A (zh) 充电控制方法、装置及系统
CN107331910B (zh) 充电方法及装置
CN106169798A (zh) 高压充电系统、高压充电电池及终端设备
US11205906B2 (en) Charging processing method, terminal device and storage medium
CN107872075A (zh) 移动终端、充电方法及充电系统
US10852798B2 (en) Power supply control method and apparatus for power strip, and storage medium
CN113725954B (zh) 充电方法、装置、设备及存储介质
CN104577235B (zh) 为便携式设备充电的方法、控制充电的方法、装置及系统
CN107124012B (zh) 充电方法、装置、充电器、终端和系统
CN105490332B (zh) 充电方法、装置及系统
WO2018053724A1 (fr) Terminal mobile, procédé de charge et système de charge
CN216564606U (zh) 充电器及充电设备
CN107733021B (zh) 电子设备的控制方法及装置
CN105449764B (zh) 充电方法、装置及系统
US11635468B2 (en) Method, apparatus and storage medium for determining charging time length of battery
US12046926B2 (en) Wireless charging transmitter, wireless charging control method, apparatus and system
US11444477B2 (en) Constant power charging method and device for mobile terminal
CN115864552A (zh) 充电电路、充电方法、装置、终端设备及存储介质

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16916463

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16916463

Country of ref document: EP

Kind code of ref document: A1