WO2019061351A1 - Procédé, dispositif et système de commande de charge - Google Patents

Procédé, dispositif et système de commande de charge Download PDF

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Publication number
WO2019061351A1
WO2019061351A1 PCT/CN2017/104578 CN2017104578W WO2019061351A1 WO 2019061351 A1 WO2019061351 A1 WO 2019061351A1 CN 2017104578 W CN2017104578 W CN 2017104578W WO 2019061351 A1 WO2019061351 A1 WO 2019061351A1
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WO
WIPO (PCT)
Prior art keywords
charging
current
voltage
battery
pwm
Prior art date
Application number
PCT/CN2017/104578
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English (en)
Chinese (zh)
Inventor
张彩辉
Original Assignee
深圳市大疆创新科技有限公司
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 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to CN201780005019.7A priority Critical patent/CN108521839A/zh
Priority to PCT/CN2017/104578 priority patent/WO2019061351A1/fr
Publication of WO2019061351A1 publication Critical patent/WO2019061351A1/fr

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    • 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
    • H02J7/00047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with provisions for charging different types of batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage

Definitions

  • Embodiments of the present invention relate to the field of battery technologies, and in particular, to a charging control method, device, and system.
  • different types of electronic devices will be equipped with different chargers, for example, mobile phones with mobile phone chargers, PADs with PAD chargers, laptops with laptop chargers, drones with drone chargers, and chargers cannot be mixed.
  • the mobile phone charger cannot charge the laptop. If the user needs to go out, and the user needs to carry a mobile phone, a PAD, a laptop, a drone, etc., in order to charge these electronic devices to ensure normal operation, the user also needs to carry a charger matched by these electronic devices, which is very troublesome. And it brings a lot of inconvenience to the user.
  • Embodiments of the present invention provide a charging control method, device, and system for charging a charger to a plurality of types of electronic devices, and also reducing heat generation of the electronic device and reducing loss of the electronic device by heat generation.
  • an embodiment of the present invention provides a charging control method, including:
  • the charger After the charger establishes a connection with the electronic device, receiving battery attribute information sent by the electronic device, where the battery attribute information includes indication information for indicating a charging mode of the battery;
  • PWM pulse width modulation
  • the PWM charging signal is output to a battery of the electronic device, and the PWM charging signal is used to directly charge a battery of the electronic device with the charging voltage and the charging current.
  • the determining is determined according to the charging voltage and the charging current
  • the PWM charging signal including:
  • a duty cycle of the PWM charging signal is determined based on the charging current.
  • determining the frequency of the PWM charging signal according to the charging voltage includes:
  • a frequency of the PWM charging signal is determined based on the charging voltage and a default frequency of the PWM charging signal, the default frequency corresponding to a default voltage of the charger.
  • the frequency is proportional to the charging voltage.
  • the frequency is increased by a preset frequency value each time the predetermined voltage value is raised by the charging voltage.
  • determining the duty cycle of the PWM charging signal according to the charging current includes:
  • a duty cycle of the PWM charge signal is determined based on the charge current and a default duty cycle of the PWM charge signal, the default duty cycle corresponding to a default current of the charger.
  • the duty cycle is proportional to the charging current.
  • the duty cycle is increased by a preset duty cycle value each time the charge current rises by a predetermined current value.
  • the charging mode includes: performing constant voltage charging at a predetermined voltage; or performing constant current charging at a predetermined current; or, performing constant current charging at a predetermined current until the voltage reaches a predetermined voltage, and then The predetermined voltage is subjected to constant voltage charging; or, charging is performed at a voltage greater than a full voltage of the battery; or charging is performed at a voltage greater than a current voltage of the battery.
  • the method further includes:
  • the current charging parameter includes at least one of the following: current voltage, current current, current temperature, current power.
  • an embodiment of the present invention provides a charging control method, including:
  • the charger After the charger establishes a connection with the electronic device, sending, to the charger, battery attribute information of the electronic device, where the battery attribute information includes indication information for indicating a charging mode of the battery;
  • the PWM charging signal for directly charging a battery of the electronic device with a charging voltage and a charging current currently required by the battery.
  • the frequency of the PWM charging signal corresponds to a charging voltage currently required by the battery.
  • the duty cycle of the PWM charging signal corresponds to the current charging current required by the battery.
  • the method further includes:
  • the adjusted PWM charging signal for directly charging a battery of the electronic device with the adjusted charging voltage and/or the adjusted charging current.
  • the current charging parameter includes at least one of the following: a current voltage, a current current, a current temperature, and a current power.
  • the charging mode includes: performing constant voltage charging at a predetermined voltage; or performing constant current charging at a predetermined current; or, performing constant current charging at a predetermined current until the voltage reaches a predetermined voltage, and then The predetermined voltage is subjected to constant voltage charging; or, charging is performed at a voltage greater than a full voltage of the battery; or charging is performed at a voltage greater than a current voltage of the battery.
  • an embodiment of the present invention provides a charger, including: a communication interface, a processor, and a charging interface; the processor is electrically connected to the communication interface and the charging interface, respectively;
  • the communication interface is configured to connect to an electronic device, and receive battery attribute information sent by the electronic device, where the battery attribute information includes indication information for indicating a charging mode of the battery;
  • the processor is configured to determine, according to a charging mode of the battery, a charging voltage and a charging current currently required by the battery; and determine an output PWM charging signal according to the charging voltage and the charging current;
  • the charging interface is configured to connect the electronic device to a battery output of the electronic device
  • the PWM charging signal determined by the processor, the PWM charging signal is used to directly charge a battery of the electronic device with the charging voltage and the charging current.
  • the processor is specifically configured to: determine a frequency of the PWM charging signal according to the charging voltage; and determine a duty ratio of the PWM charging signal according to the charging current.
  • the processor is specifically configured to: determine a frequency of the PWM charging signal according to the charging voltage and a default frequency of a PWM charging signal, where the default frequency is the default of the charger The voltage corresponds.
  • the frequency is proportional to the charging voltage.
  • the frequency is increased by a preset frequency value each time the predetermined voltage value is raised by the charging voltage.
  • the processor is specifically configured to: determine a duty ratio of the PWM charging signal according to the charging current and a default duty ratio of a PWM charging signal, where the default duty ratio is The default current of the charger corresponds.
  • the duty cycle is proportional to the charging current.
  • the duty cycle is increased by a preset duty cycle value each time the charge current rises by a predetermined current value.
  • the charging mode includes: performing constant voltage charging at a predetermined voltage; or performing constant current charging at a predetermined current; or, performing constant current charging at a predetermined current until the voltage reaches a predetermined voltage, and then The predetermined voltage is subjected to constant voltage charging; or, charging is performed at a voltage greater than a full voltage of the battery; or charging is performed at a voltage greater than a current voltage of the battery.
  • the communication interface is further configured to receive a current charging parameter of the battery sent by the electronic device;
  • the processor is further configured to adjust a current charging voltage and/or a charging current required by the battery according to a current charging parameter of the battery and a charging mode of the battery; and according to the adjusted charging current and/or adjustment After the charging current, adjusting the PWM charging signal;
  • the charging interface is further configured to output an adjusted PWM charging signal to a battery of the electronic device, where the adjusted PWM charging signal is used to directly adjust the charging voltage and/or the adjusted charging current The battery charging of the electronic device.
  • the current charging parameter includes at least one of the following: a current voltage, Current current, current temperature, current power.
  • the communication interface and the charging interface are integrated into the same interface.
  • an embodiment of the present invention provides an electronic device, including: a communication interface, a charging interface, and a battery; wherein the battery is electrically connected to the communication interface and the charging interface, respectively;
  • the communication interface is configured to connect a charger, and send battery attribute information of the electronic device to the charger, where the battery attribute information includes indication information for indicating a charging mode of the battery;
  • the charging interface is configured to connect to the charger, and receive a PWM charging signal output by the charger, where the PWM charging signal is used to directly charge the battery with a charging voltage and a charging current currently required by the battery. .
  • the frequency of the PWM charging signal corresponds to a charging voltage currently required by the battery.
  • the duty cycle of the PWM charging signal corresponds to the current charging current required by the battery.
  • the communication interface is further configured to send a current charging parameter of the battery to the charger, where the current charging parameter is used by the charger to adjust the PWM charging signal;
  • the charging interface is further configured to receive an adjusted PWM charging signal output by the charger, where the adjusted PWM charging signal is used to directly adjust the charging voltage and/or the adjusted charging current The battery of the electronic device is charged.
  • the current charging parameter includes at least one of the following: a current voltage, a current current, a current temperature, and a current power.
  • the charging mode includes: performing constant voltage charging at a predetermined voltage; or performing constant current charging at a predetermined current; or, performing constant current charging at a predetermined current until the voltage reaches a predetermined voltage, and then The predetermined voltage is subjected to constant voltage charging; or, charging is performed at a voltage greater than a full voltage of the battery; or charging is performed at a voltage greater than a current voltage of the battery.
  • the communication interface and the charging interface are integrated into the same interface.
  • an embodiment of the present invention provides a charging control system, comprising: the charger according to the third aspect of the present invention, and the electronic device according to the fourth aspect of the present invention;
  • the charger is configured to charge a battery of the electronic device.
  • a charging control method, device and system provided by an embodiment of the present invention through a charger and an electronic After the device establishes the connection, receiving battery attribute information sent by the electronic device, the battery attribute information includes indication information for indicating a charging mode of the battery; determining, according to a charging mode of the battery, a current charging required by the battery a voltage and a charging current; outputting, according to the charging voltage and the charging current, a PWM charging signal to a battery of the electronic device, the PWM charging signal being used to directly direct the electron with the charging voltage and the charging current The battery of the device is charged.
  • the charger of the embodiment can output the corresponding charging voltage and charging current through the PWM charging signal, so the charger of the embodiment has the function of adjusting the charging voltage and the charging current, so that the charger can be adapted to various types.
  • Electronic devices when the user goes out, only need to carry such a charger to charge various electronic devices, which is convenient for the user.
  • the charging chip provided in the electronic device in the prior art generates heat when adjusting the charging voltage and the charging current
  • the electronic device charged by the charger does not need to set the charging chip to adjust the charging voltage and the charging current, and therefore, reduces The heat generation of the electronic device charged by the charger of the present invention reduces the loss of charging to the electronic device.
  • FIG. 1 is a flowchart of a charging control method according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a charging control method according to another embodiment of the present invention.
  • FIG. 3 is a flowchart of a charging control method according to another embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a charger according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a charging control system according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a charging control method according to an embodiment of the present invention. As shown in FIG. 1 , the method in this embodiment may be applied to a charger. The method in this embodiment may include:
  • the charger establishes a connection with the electronic device, and the charger and the electronic device perform authentication identification.
  • the charger receives the battery attribute information sent by the electronic device, and the battery attribute information includes the electronic device for indicating the electronic device. The indication of the battery's charging mode.
  • the electronic device may be a mobile phone, a tablet computer, a notebook computer, a camera, a drone, or the like.
  • the charger and the electronic device can be connected by wire or wirelessly.
  • the electronic device may have a type-c interface.
  • S102 Determine, according to a charging mode of the battery, a charging voltage and a charging current that are currently required by the battery.
  • the charger receives the battery attribute information sent by the electronic device, determines the charging mode of the battery according to the attribute information of the battery, and then determines the charging voltage and the charging current currently required by the battery according to the charging mode of the battery.
  • the charging mode of the battery may include: performing constant voltage charging at a predetermined voltage; or performing constant current charging at a predetermined current; or, performing constant current charging with a predetermined current until the voltage reaches a predetermined voltage, and then performing the predetermined voltage Press charging; or, charging at a voltage greater than the full voltage of the battery; or charging at a voltage greater than the current voltage of the battery.
  • the charging mode of this embodiment is not limited to this.
  • the charger determines that the charging voltage currently required by the battery is the predetermined voltage, and the current charging current required by the battery may be the rated current of the battery or the default current of the charger. .
  • the charger determines that the current charging current required by the battery is the predetermined current, and the current charging voltage required by the battery may be a voltage greater than the current voltage or the full voltage of the battery. value.
  • the charger determines that the current charging current required by the battery is the predetermined current, and the current charging voltage required by the battery may be a voltage value greater than the current voltage or the full voltage of the battery. .
  • the charger determines that the currently required charging voltage of the battery is a voltage value greater than the full voltage of the battery, for example, the full voltage of the battery is 4.8V, correspondingly
  • the charging voltage can be 5V
  • the current charging current required by the battery can be the rated current of the battery or the default current of the charger.
  • the charger determines that the currently required charging voltage of the battery is a voltage value greater than the current voltage of the battery, for example, the charging voltage is equal to the current voltage of the battery + positive bias
  • the value of the current value of the battery can be the rated current of the battery or the default current of the charger.
  • the foregoing describes an example of determining the charging voltage and the charging current currently required by the battery, but is not limited thereto.
  • the charging voltage and the charging current currently required by the battery are determined according to the charging mode of the battery.
  • S103 Determine an output PWM charging signal according to the charging voltage and the charging current, and output the PWM charging signal to a battery of the electronic device, where the PWM charging signal is used to use the charging voltage and the The charging current directly charges the battery of the electronic device.
  • a charging signal that directly charges the battery, and the PWM charging signal directly charges the battery with the charging voltage and the charging current.
  • the battery attribute information includes indication information for indicating a charging mode of the battery; and charging according to the battery a mode of determining a charging voltage and a charging current currently required by the battery; and outputting, according to the charging voltage and the charging current, a PWM charging signal to a battery of the electronic device, the PWM charging signal being used for charging
  • the voltage and the charging current directly charge the battery of the electronic device. Therefore, the charger of the embodiment can output the corresponding charging voltage and charging current through the PWM charging signal, so the charger of the embodiment has the function of adjusting the charging voltage and the charging current, so that the charger can be adapted to various types.
  • FIG. 2 is a flowchart of a charging control method according to another embodiment of the present invention. As shown in FIG. 2, the method in this embodiment may be applied to an electronic device. The method in this embodiment may include:
  • S202 Receive a PWM charging signal output by the charger, where the PWM charging signal is used to directly charge a battery of the electronic device with a charging voltage and a charging current currently required by the battery.
  • the electronic device establishes a connection with the charger, and the electronic device and the charger perform the authentication identification.
  • the electronic device sends the battery attribute information to the charger, and the battery attribute information includes the electronic device for indicating the electronic device. The indication of the battery's charging mode.
  • the electronic device may be a mobile phone, a tablet computer, a notebook computer, a camera, a drone, or the like.
  • the electronic device and the charger can be connected by wire or wirelessly. Wherein, the electronic device and the charger are connected by wire, and the electronic device may have a type-c interface.
  • the electronic device After the electronic device sends the battery attribute information to the charger, receiving a PWM charging signal output by the charger, the PWM charging signal directly charging the battery, and the PWM charging signal is directly charged to the battery by the charging voltage and the charging current. Charge it. Therefore, after receiving the PWM charging signal, the electronic device directly charges the PWM charging signal to the battery without adjusting the voltage and/or current.
  • the battery attribute information of the electronic device is sent to the charger, the battery attribute information includes indication information for indicating a charging mode of the battery; and the charging is received. And outputting a PWM charging signal for directly charging the battery of the electronic device with a charging voltage and a charging current currently required by the battery Charging. Therefore, the charger of the embodiment can output the corresponding charging voltage and charging current through the PWM charging signal, so the charger of the embodiment has the function of adjusting the charging voltage and the charging current, so that the charger can be adapted to various types. Electronic devices, when the user goes out, only need to carry such a charger to charge various electronic devices, which is convenient for the user.
  • the electronic device of the present invention does not need to provide a charging chip to adjust the charging voltage and the charging current, thereby reducing the heat generation amount of the electronic device. , reducing the loss of charging to electronic equipment.
  • FIG. 3 is a flowchart of a charging control method according to another embodiment of the present invention. As shown in FIG. 3, the method in this embodiment may include:
  • the electronic device After the charger establishes a connection with the electronic device, the electronic device sends battery attribute information to the charger, where the battery attribute information includes indication information for indicating a charging mode of the battery. Accordingly, the charger receives battery attribute information transmitted by the electronic device.
  • the charger determines, according to the charging mode of the battery, a charging voltage and a charging current that are currently required by the battery.
  • S301 and S302 can refer to related descriptions in the embodiment shown in FIG. 1 or FIG. 2, and details are not described herein again.
  • the charger determines a frequency of the PWM charging signal according to the charging voltage, and determines a duty ratio of the PWM charging signal according to the charging current.
  • the frequency of the PWM charging signal is related to the charging voltage output by the PWM charging signal
  • the duty ratio of the PWM charging signal is related to the charging current output by the PWM charging signal.
  • the charger can determine the frequency of the PWM charging signal based on the charging voltage and a default frequency of the PWM charging signal, the default frequency corresponding to a default voltage of the charger.
  • the default voltage of the charger is known, and the charger can determine the frequency of the PWM charging signal corresponding to the default voltage according to the default voltage of the charger, and the frequency is called a default frequency. If the default voltage of the charger is 5V, the default frequency of the corresponding PWM charging signal is 1000Hz. Among them, the default voltage of the charger refers to the signal output of the charger without PWM waveform, the output voltage of the charger is 5V.
  • the frequency of the PWM charging signal is proportional to the charging voltage. Battery current The larger the required charging voltage, the higher the frequency of the PWM charging signal. The smaller the charging voltage currently required by the battery, the smaller the frequency of the PWM charging signal.
  • the frequency is increased by a preset frequency value each time the predetermined voltage value is raised by the charging voltage. This means that the frequency of the PWM charging signal varies linearly with the charging voltage. for example:
  • the corresponding charging voltage is 3.65V.
  • the corresponding charging voltage is 4.20V.
  • the corresponding charging voltage is 4.35V.
  • the corresponding charging voltage is 4.40V.
  • the corresponding charging voltage is 4.5V.
  • the frequency of the PWM charging signal is increased by 100 Hz for every 0.02 V increase in the charging voltage.
  • the corresponding output voltage is increased by 0.02V.
  • the frequency of the PWM charging signal is 21KHz.
  • the frequency of the PWM charging signal is 36KHz.
  • the frequency of the PWM charging signal is 76KHz.
  • the charger can determine a duty cycle of the PWM charging signal based on the charging voltage and a default duty cycle of the PWM charging signal, the default duty cycle corresponding to a default current of the charger.
  • the default current of the charger is known, and the charger can determine the duty ratio of the PWM charging signal corresponding to the default current according to the default current of the charger, and the duty ratio is referred to as a default duty ratio. If the default current of the charger is 5V, the default duty cycle of the corresponding PWM charging signal is 50%. The default current is the current that is output when the PWM output signal of the charger output duty cycle is 50%.
  • the duty cycle of the PWM charging signal is proportional to the charging current. That is, the larger the current charging current required by the battery, the larger the duty cycle of the PWM charging signal, and the smaller the current charging current required by the battery, the smaller the duty cycle of the PWM charging signal.
  • the duty cycle increases each time the charging current rises by a preset current value. Add the preset duty value. This means that the duty cycle of the PWM charging signal varies linearly with the charging current. For example: 1% duty cycle corresponds to 0.075A, and the corresponding charging current is 2A at 50% duty cycle. Therefore, for every 1% duty cycle increase, the charging current increases by 0.075A, and the duty is reduced by 1%. The charging current is reduced by 0.075A.
  • the duty cycle of the PWM charging signal is 70%.
  • the duty cycle of the PWM charging signal is 35%.
  • the charger determines that the PWM charging signal has an output frequency of 39 kHz and a duty ratio of 34%.
  • the charger determines that the PWM charging signal has an output frequency of 40.3 kHz and a duty cycle of 68%.
  • the charger outputs the PWM charging signal of the frequency and the duty ratio to a battery of the electronic device.
  • the charger after determining the frequency and duty cycle of the PWM charging signal, the charger outputs a PWM charging signal having the frequency and the duty ratio to the battery of the electronic device. Accordingly, the electronic device receives the PWM charging signal output by the charger.
  • a PWM charging signal is used to directly charge a battery of the electronic device with the charging voltage and the charging current.
  • the method in this embodiment may further include:
  • the electronic device sends a current charging parameter of the battery to the charger.
  • the electronic device may send the current charging parameter of the battery to the charger in real time, or may periodically send the current charging parameter of the battery to the charger. Accordingly, the charger receives the current charging parameters of the battery transmitted by the electronic device.
  • the current charging parameter includes at least one of the following: a current voltage, a current current, a current temperature, and a current power.
  • the charger adjusts a current charging voltage and/or a charging current currently required by the battery according to a current charging parameter of the battery and a charging mode of the battery.
  • the comparison of the pre-output charging voltage and the comparison of the determined charging current with the current output charging current, if they are the same, means that it is not necessary to adjust the currently required charging voltage and charging current of the battery, and continue to output the currently output PWM charging signal.
  • the device adjusts the current charging voltage and/or charging current required by the battery.
  • how to determine the corresponding charging voltage and the charging current according to the current charging parameter of the battery and the charging mode of the battery can be referred to the related description in the embodiment shown in FIG. 1 , and also in the prior art. The description of this is not repeated here.
  • the charger adjusts the PWM charging signal according to the adjusted charging current and/or the adjusted charging current.
  • the charger adjusts the PWM charging signal according to the adjusted charging voltage and/or the adjusted charging current. For example, the charger adjusts the frequency of the PWM charging signal according to the adjusted charging voltage; the charger adjusts the duty ratio of the PWM charging signal according to the adjusted charging current, thereby obtaining the adjusted PWM charging signal; wherein, how to adjust the PWM For the frequency and duty ratio of the charging signal, refer to the related description in the embodiment shown in FIG. 2, and details are not described herein again.
  • the charger outputs an adjusted PWM charging signal to the battery of the electronic device, where the adjusted PWM charging signal is used to directly charge the battery of the electronic device with the adjusted charging voltage and/or the adjusted charging current. .
  • the charger after the charger adjusts the PWM charging signal, the charger outputs the adjusted PWM charging signal to the battery of the electronic device, and accordingly, the electronic device receives the adjusted PWM charging signal output by the charger.
  • the adjusted PWM charging signal directly charges the battery
  • the adjusted PWM charging signal directly charges the battery with the adjusted charging voltage and the adjusted charging current.
  • the charger controls the output charging voltage by the frequency of the PWM charging signal, controls the output charging current by the duty ratio of the PWM charging signal, and the PWM charging signal is used to charge the battery currently required.
  • the voltage and charging current directly charge the battery of the electronic device. Therefore, the charger of the embodiment can control the charging voltage and the charging current required for outputting different batteries, so the charger can be adapted to various types of electronic devices, when the user goes out, only It is convenient to charge the various electronic devices by carrying such a charger. Since the charging chip provided in the electronic device in the prior art generates heat when adjusting the charging voltage and the charging current, the electronic device of the present invention does not need to provide a charging chip to adjust the charging voltage and the charging current, thereby reducing the heat generation amount of the electronic device.
  • the charger can also receive the current charging parameter sent by the electronic device during charging of the battery of the electronic device, and dynamically adjust the charging voltage and/or the charging current output by the PWM charging signal according to the current charging parameter to improve the charging of the battery. Efficiency, to achieve fast charging effect.
  • the charger 40 of this embodiment may include: a communication interface 41, a processor 42 and a charging interface 43; It is electrically connected to the communication interface 41 and the charging interface 43.
  • the communication interface 41 is configured to connect to an electronic device, and receive battery attribute information sent by the electronic device, where the battery attribute information includes indication information for indicating a charging mode of the battery;
  • the processor 42 is configured to determine, according to a charging mode of the battery, a charging voltage and a charging current currently required by the battery; and determine an output PWM charging signal according to the charging voltage and the charging current;
  • the charging interface 43 is configured to connect the electronic device, and output the PWM charging signal determined by the processor 42 to the battery of the electronic device, where the PWM charging signal is used to use the charging voltage and the charging current The battery of the electronic device is directly charged.
  • the processor 42 is specifically configured to: determine a frequency of the PWM charging signal according to the charging voltage; and determine a duty ratio of the PWM charging signal according to the charging current.
  • the processor 42 is specifically configured to: determine a frequency of the PWM charging signal according to the charging voltage and a default frequency of a PWM charging signal, the default frequency and a default voltage of the charger correspond.
  • the frequency is proportional to the charging voltage.
  • the frequency is increased by a preset frequency value each time the predetermined voltage value is raised by the charging voltage.
  • the processor 42 is specifically configured to: determine a duty ratio of the PWM charging signal according to the charging current and a default duty ratio of a PWM charging signal, where the default duty ratio is The default current of the charger corresponds.
  • the duty cycle is proportional to the charging current.
  • the duty cycle increases a preset duty cycle value each time the charge current rises by a predetermined current value.
  • the charging mode includes: performing constant voltage charging at a predetermined voltage; or performing constant current charging at a predetermined current; or, performing constant current charging to a predetermined voltage at a predetermined current, and then The predetermined voltage is subjected to constant voltage charging; or, charging is performed at a voltage greater than the full voltage of the battery; or charging is performed at a voltage greater than the current voltage of the battery.
  • the communication interface 41 is further configured to receive a current charging parameter of the battery sent by the electronic device;
  • the processor 42 is further configured to adjust, according to a current charging parameter of the battery and a charging mode of the battery, a charging voltage and/or a charging current currently required by the battery; according to the adjusted charging current and/or Adjusting the charging current to adjust the PWM charging signal;
  • the charging interface 43 is further configured to output an adjusted PWM charging signal to the battery of the electronic device, where the adjusted PWM charging signal is used to directly adjust the charging voltage and/or the adjusted charging current The battery of the electronic device is charged.
  • the current charging parameter includes at least one of the following: a current voltage, a current current, a current temperature, and a current power amount.
  • the communication interface 41 and the charging interface 43 are integrated into the same interface. That is, the communication interface 41 and the charging interface 43 are in the same physical interface, so that in the process of charging the battery of the electronic device, only the electronic device needs to be connected to an interface, and the function of charging and transmitting information can be realized. It simplifies the appearance of the charger and facilitates the user's operation.
  • the charger of this embodiment can be used to implement the technical solution executed by the charger in the foregoing method embodiments, and the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
  • the electronic device 50 of the embodiment may include: a communication interface 51, a charging interface 52, and a battery 53. Electrically connecting with the communication interface 51 and the charging interface 52;
  • the communication interface 51 is configured to connect a charger, and send battery attribute information of the electronic device to the charger, where the battery attribute information includes indication information for indicating a charging mode of the battery 53;
  • the charging interface 52 is configured to receive a PWM charging signal output by the charger, where The PWM charging signal is used to directly charge the battery 53 with the charging voltage and charging current currently required by the battery.
  • the frequency of the PWM charging signal corresponds to a charging voltage currently required by the battery; and/or the duty cycle of the PWM charging signal corresponds to a current required current of the battery.
  • the communication interface 51 is further configured to send a current charging parameter of the battery 53 to the charger, where the current charging parameter is used by the charger to adjust the PWM charging signal;
  • the charging interface 52 is further configured to receive an adjusted PWM charging signal output by the charger, where the adjusted PWM charging signal is used to directly adjust the charging voltage and/or the adjusted charging current.
  • the battery 53 is charged.
  • the current charging parameter includes at least one of the following: a current voltage, a current current, a current temperature, and a current power.
  • the charging mode includes: performing constant voltage charging at a predetermined voltage; or performing constant current charging at a predetermined current; or, performing constant current charging to a predetermined voltage at a predetermined current, and then The predetermined voltage is subjected to constant voltage charging; or, charging is performed at a voltage greater than the full voltage of the battery; or charging is performed at a voltage greater than the current voltage of the battery.
  • the communication interface 51 and the charging interface 52 are integrated into the same interface.
  • the electronic device in this embodiment may be used to perform the technical solution executed by the electronic device in the foregoing method embodiments, and the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 6 is a schematic structural diagram of a charging control system according to an embodiment of the present invention.
  • the charging control system of this embodiment may include: a charger 40 and an electronic device 50, and a charger 50 for The battery of the electronic device 50 is charged.
  • the charger 40 can adopt the structure of the charger embodiment shown in FIG. 4, and correspondingly, the technical solution executed by the charger in any of the foregoing method embodiments can be executed, and the implementation principle and the technical effect are similar. Let me repeat.
  • the electronic device 50 can adopt the structure of the embodiment of the electronic device shown in FIG. 5, and correspondingly, the technical solution executed by the electronic device in any of the foregoing method embodiments can be executed, and the implementation principle and the technical effect are similar, and details are not described herein again. .
  • ROM Read-Only Memory
  • RAM Random Access Memory

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

Abstract

L'invention concerne un procédé, un dispositif et un système de commande de charge. Le procédé selon l'invention consiste : à recevoir des informations de caractéristiques de batterie envoyées par le dispositif électronique après qu'une connexion a été établie entre un chargeur et un dispositif électronique, lesdites informations comprenant des informations d'indication destinées à indiquer un mode de charge d'une batterie (S101) ; à déterminer, en fonction du mode de charge de la batterie, une tension et un courant de charge requis à ce moment là par la batterie (S102) ; et à émettre en sortie un signal de charge MID vers la batterie du dispositif électronique en fonction de la tension et du courant de charge, le signal de charge MID servant à charger directement la batterie du dispositif électronique au moyen de la tension et du courant de charge (S103). Ainsi, un chargeur émet en sortie une tension de charge et un courant de charge correspondants au moyen d'un signal de charge MID et il est doté d'une fonction permettant de régler une tension et un courant de charge et peut de ce fait être adapté à divers dispositifs électroniques. En outre, un dispositif électronique n'a pas besoin d'être doté d'une puce de charge pour le réglage de la tension et du courant de charge. Ainsi, la présente invention réduit la production de chaleur du dispositif électronique et réduit également l'usure et la détérioration du dispositif en raison de la charge.
PCT/CN2017/104578 2017-09-29 2017-09-29 Procédé, dispositif et système de commande de charge WO2019061351A1 (fr)

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CN201780005019.7A CN108521839A (zh) 2017-09-29 2017-09-29 充电控制方法、设备和系统
PCT/CN2017/104578 WO2019061351A1 (fr) 2017-09-29 2017-09-29 Procédé, dispositif et système de commande de charge

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