WO2019075687A1 - Procédé de détection de la capacité de décharge de courant d'un câble, et dispositif électronique - Google Patents

Procédé de détection de la capacité de décharge de courant d'un câble, et dispositif électronique Download PDF

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Publication number
WO2019075687A1
WO2019075687A1 PCT/CN2017/106828 CN2017106828W WO2019075687A1 WO 2019075687 A1 WO2019075687 A1 WO 2019075687A1 CN 2017106828 W CN2017106828 W CN 2017106828W WO 2019075687 A1 WO2019075687 A1 WO 2019075687A1
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Prior art keywords
current
charging
electronic device
input
charging current
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Ceased
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PCT/CN2017/106828
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English (en)
Chinese (zh)
Inventor
郭启明
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Shenzhen Royole Technologies Co Ltd
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Shenzhen Royole Technologies Co Ltd
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Priority to CN201780095269.4A priority Critical patent/CN111316523A/zh
Priority to PCT/CN2017/106828 priority patent/WO2019075687A1/fr
Publication of WO2019075687A1 publication Critical patent/WO2019075687A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/08—Measuring resistance by measuring both voltage and current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries

Definitions

  • the present invention relates to the field of electronic technologies, and in particular, to a method for detecting a cable through-flow capability and an electronic device.
  • the existing fast charging technology solutions have high requirements on the charging capacity of the charging cable. Because the quality of the charging cable on the market is uneven, and the user often mixes the fast charging adapter with the fast charging requirement.
  • the charging cable charges the electronic device, so it can detect the flow capacity of the charging cable, which is very necessary for a safe and qualified fast charging solution.
  • the flow capacity of the charging cable corresponds to the impedance value of the charging cable. Under the same current condition, the smaller the impedance of the charging cable and the lower the temperature rise, the stronger the flow capacity of the charging cable.
  • the pull-up resistor can be externally connected to the metal casing of the electronic device, the outer casing of the charging cable end is externally connected with a pull-down resistor, and then the voltage division value between the two resistors is detected to determine the flow capacity of the corresponding charging cable.
  • EMI electromagnetic interference
  • the embodiment of the invention discloses a method for detecting the flow capacity of a cable and an electronic device, which can quickly determine the flow capacity of the charging cable, and does not need to change the structure of the electronic device or the cable, and has good compatibility.
  • a first aspect of the embodiments of the present invention discloses a method for detecting a traffic capacity of a cable, including:
  • the charging current of the rechargeable battery of the electronic device is the first charging current, acquiring the first input voltage and the first input current of the electronic device, where a charging current limit value that is greater than a preset multiple of the rechargeable battery;
  • the second aspect of the embodiments of the present invention discloses an electronic device, including a processor and a rechargeable battery, where the processor is configured to:
  • the charging current of the rechargeable battery of the electronic device is the first charging current, acquiring the first input voltage and the first input current of the electronic device, where a charging current limit value that is greater than a preset multiple of the rechargeable battery;
  • a third aspect of the embodiments of the present invention discloses a computer readable storage medium, wherein the computer readable storage medium stores instructions for causing a computer to execute the line according to the first aspect when the instruction is run on a computer Method for detecting cable flow capacity.
  • a fourth aspect of the embodiments of the present invention discloses a computer program product comprising instructions for causing a computer to perform the method for detecting a cable flow capability according to the first aspect described above when the instructions are run on a computer.
  • the charging current of the rechargeable battery of the electronic device is the first charging current
  • the first input voltage and the first input current of the electronic device are first acquired.
  • the first charging current is greater than a preset current limit of the rechargeable battery, and then the charging current of the rechargeable battery is adjusted from the first charging current to the second charging current, and the second input voltage of the electronic device is obtained.
  • Input current and finally calculating a resistance of the charging cable according to the first input voltage, the first input current, the second input voltage, and the second input current, and determining a current flow rate of the charging cable according to the calculated resistance, thereby Quickly determine the flow capacity of the charging cable without changing the structure of the electronic device or cable, and the compatibility is good.
  • FIG. 1 is a schematic structural diagram of a charging system according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for detecting a cable through-flow capability according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
  • the embodiment of the invention discloses a cable passing capacity detecting method and an electronic device, which are applied to a charging system, wherein the charging system comprises an electronic device, a power adapter and a charging cable, and the electronic device and the power adapter pass the charging cable. connection.
  • the method for detecting the traffic capacity of the cable and the electronic device provided by the embodiments of the present invention can quickly determine the flow capacity of the charging cable, and the structure of the electronic device or the cable does not need to be changed, and the compatibility is good.
  • FIG. 1 is a schematic structural diagram of a charging system according to an embodiment of the present invention.
  • the charging system includes an electronic device 101 , a power adapter 102 , and a charging cable 103 .
  • the electronic device 101 and the power adapter 102 are electrically connected through the charging cable 103 , and the impedance of the charging cable 103 is also a charging cable.
  • the resistance of 103 is R C .
  • the electronic device 101 includes a processor (for example, a central processing unit (CPU)) 1011, a charging management chip 1012, and a rechargeable battery 1013.
  • CPU central processing unit
  • the CPU 1011 is connected to the charge management chip 1012, and can communicate via a communication interface, for example, via an I 2 C bus (Inter-Integrated Circuit); the charge management chip 1012 is connected to the rechargeable battery 1013 and constitutes a charging path.
  • the power adapter 102 includes a microprocessor (eg, a Micro Control Unit (MCU)) 1021, a first data pin (eg, a D+ pin), and a second data pin (eg, a D-pin), where The data pin and the second data pin are disconnected, and the first data pin and the second data pin are electrically connected to the MCU 1021.
  • the MCU 1021 is communicably connected to the CPU 1011 through the first data pin and the second data pin.
  • the MCU 1021 can perform serial communication with the CPU 1011 through the first data pin and the second data pin.
  • the output voltage value of the power adapter 102 is V BUS — A , that is, the voltage value of the charging cable of the power adapter end;
  • the input voltage value of the electronic device 101 is V BUS — D , that is, the voltage value of the charging cable of the electronic device end;
  • the output current value of the power adapter 102 that is, the input current value of the electronic device 101 is I IN ;
  • the charging voltage of the rechargeable battery 1013 is V BAT , and the charging current of the rechargeable battery 1013 is I CHRG .
  • the electronic device 101 presets a charging current limit value (for example, a first charging current limiting value) of the charging battery 1013 of the electronic device 101, that is, a preset charging battery 1013.
  • Charge current upper limit eg I CHRG_LIM .
  • the charge management chip 1012 can acquire the voltage value V BAT of the rechargeable battery 1013 and the input charge current value I CHRG .
  • the CPU 1011 can acquire the current charging current value I CHRG of the rechargeable battery 1013 through the charging management chip 1012; the CPU 1011 can also acquire the current input voltage value of the electronic device 101 from the charging management chip 1012 as V BUS — D .
  • the CPU 1011 acquires the output current value of the power adapter 102 from the MCU 1021 through the data transmission line on the charging cable 103, thereby obtaining the input current value I IN when the electronic device 101 is charged. Specifically, in order to acquire the charging current I IN when the electronic device 101 is charged, the CPU 1011 sends a request for acquiring the output current of the power adapter 102 to the MCU 1021 through the data transmission line on the charging cable 103, and the MCU 1021 receives the output current of the power adapter 102. After the request, the MCU 1021 collects the current output current value of the power adapter 102 and sends the collected output current value to the CPU 1011. The CPU 1011 receives the output current value sent by the MCU 1021, wherein the input current value I IN of the electronic device 101 is equal to the power adapter. The output current value of 102.
  • the CPU 1011 can also control the MCU 1021 to adjust the output voltage value of the power adapter 102, for example, to control the MCU 1021 to increase or decrease the output voltage value of the power adapter 102.
  • the CPU 1011 can also control the charge management chip 1012 to adjust the charge current limit value of the rechargeable battery 1013 by the electronic device 101.
  • FIG. 2 is a schematic flowchart diagram of a method for detecting a cable throughflow capability according to an embodiment of the present invention.
  • the method for detecting a cable through-flow capability described in the embodiment of the present invention includes:
  • the charging current of the rechargeable battery of the electronic device is the first charging current, acquiring the first input voltage and the first input current of the electronic device, where The first charging current is greater than a preset current limit of the rechargeable battery.
  • the power adapter output (eg, voltage output or current output) is detected, when the charging current of the rechargeable battery is detected as the first charging current, And when the first charging current is greater than the preset current limiting value of the rechargeable battery, acquiring the current first input voltage and the first input current of the electronic device.
  • the first input voltage is also the voltage value between the connection point of the charging cable and the electronic device and the ground pin of the electronic device, that is, the voltage value on the power pin of the electronic device 101, and the first input current is also The current value currently output by the power adapter.
  • the electronic device presets a charging current limit value when the rechargeable battery is charged, and assumes that the charging current limiting value of the rechargeable battery is preset to a first charging current limiting value, and the first charging current limiting value is also an electronic device.
  • the first charging current limit value may be a default charging current limit value of the electronic device for the battery, or after the electronic device is connected to the power adapter through the charging cable, the electronic device sets the current charging current limit value of the battery to The first charge current limit value.
  • the charging cable can be, for example, a Universal Serial Bus (USB) charging cable, and the electronic device can communicate with the power adapter through a serial port through a charging cable.
  • USB Universal Serial Bus
  • the electronic device includes a charging management chip and a processor connected to the charging management chip.
  • the electronic device can acquire the current first input voltage value and the first input current value of the electronic device through the charging management chip.
  • the electronic device includes a charging management chip and a processor
  • the power adapter includes a first data pin, a second data pin, and a microprocessor, and the first data pin and the second data pin are disconnected.
  • the first data pin and the second data pin are respectively electrically connected to the microprocessor, and the microprocessor is communicably connected to the processor of the electronic device through the first data pin and the second data pin.
  • the specific manner of the processor acquiring the first input current of the electronic device may be: the electronic device first sends a request for obtaining the output current of the power adapter to the microprocessor of the power adapter through the processor, to request the microprocessor to obtain the power adapter. Current output current value.
  • the microprocessor obtains the current output current value of the power adapter in response to the received request, and sends the current output current value of the power adapter to the location Processor.
  • the processor of the electronic device receives the current output current value of the power adapter sent by the microprocessor, wherein the first input current value is equal to the current output current value of the power adapter.
  • the electronic device adjusts a charging current of the rechargeable battery by the first charging current to a second charging current.
  • the electronic device after acquiring the first input voltage and the first input current, the electronic device first sends a voltage hold command to the power adapter, and the power adapter responds to the voltage hold command to keep the output voltage of the power adapter unchanged. The electronic device then adjusts the current charging current of its rechargeable battery from the first charging current to the second charging current.
  • the electronic device can adjust the charging current of the rechargeable battery by adjusting the charging current limit value of the rechargeable battery.
  • the electronic device can adjust the charging current limit value of the rechargeable battery by the first charging current limit value.
  • the second charging current limit value is such that the current charging current of the electric battery is adjusted from the first charging current to the second charging current.
  • the first charging current limiting value may be greater than the second charging current limiting value, and the first charging current limiting value may also be smaller than the second charging current limiting value.
  • the first charging current may be greater than the second charging current, and the first charging current may be smaller than the second charging current, which is not limited in the embodiment of the present invention.
  • the electronic device acquires a second input voltage and a second input current of the electronic device.
  • the electronic device acquires the second input voltage and the second input current of the electronic device, and the electronic device acquires
  • the specific manner of the second input voltage and the second input current reference may be made to the foregoing description, and details are not described herein again.
  • the electronic device calculates a resistance of the charging cable according to the first input voltage, the first input current, the second input voltage, and the second input current, and according to the calculated A resistor determines a current flow rate of the charging cable.
  • determining the current flow rate of the charging cable is also determining the flow capacity of the charging cable.
  • the electronic device first calculates the resistance of the charging cable based on the first input voltage, the first input current, the second input voltage, and the second input current. Specifically, the electronic device acquires a voltage difference between the first input voltage and the second input voltage, and obtains a current difference between the first input current and the second input current, and obtains the obtained voltage difference and current difference. Value, calculate the resistance value of the charging cable. The electronic device then obtains and calculates the calculated charging line by looking up a mapping table between the resistance value and the current capability. The resistance value of the cable corresponds to the flow capacity. The mapping table between the resistance value and the current capability can be pre-stored in the electronic device.
  • the electronic device before acquiring the first input voltage and the first input current of the electronic device, the electronic device first acquires a current charging current value of the rechargeable battery of the electronic device through the charging management chip included therein; and then determines the obtained charging. Whether the current charging current value of the battery is greater than a preset current limit of the rechargeable battery; if it is determined that the current charging current value of the rechargeable battery is greater than a preset current multiple of the charging battery, the electronic device obtains the first input Voltage and first input current.
  • the input current of the electronic device is equal to the output current of the power adapter, and the input current of the electronic device is rectified by the power management chip and output to the rechargeable battery, that is, the rechargeable battery is charged, so the charging current of the rechargeable battery is rectified.
  • the input current of the electronic device, the charging current of the rechargeable battery is usually smaller than the input current of the electronic device, and of course, the charging current of the rechargeable battery may also be greater than or equal to the input current of the electronic device.
  • the electronic device sends a first voltage adjustment command to the power adapter, and the power adapter responds to the first voltage adjustment command, if it is determined that the current charging current value of the rechargeable battery is less than or equal to the preset current limit of the rechargeable battery. Adjust the output voltage of the power adapter.
  • the power adapter adjusts the output voltage of the power adapter, the current charging current value of the rechargeable battery is obtained again by the charging management chip. For example, the current charging current value of the rechargeable battery may be obtained again by the charging management chip at every preset time interval.
  • the current charging current value of the rechargeable battery may be obtained in real time by the charging management chip; the electronic device determines whether the current charging current value of the rechargeable battery obtained again is greater than the charging current limit value of the preset multiple of the rechargeable battery; When the current charging current value of the obtained rechargeable battery is greater than the preset current limiting current limit value, the electronic device sends a second voltage adjustment command to the power adapter, and the power adapter stops adjusting the output voltage of the power adapter in response to the second voltage adjustment command. To keep the output voltage of the power adapter unchanged.
  • the method for detecting the traffic capacity of the cable provided by the embodiment of the present invention can be applied to the charging system described above.
  • the solution of the embodiment of the present invention is described below with reference to the charging system shown in FIG. 1 . .
  • the electronic device 101 presets that the charging current limit value of the rechargeable battery 1013 is a first charging current limiting value, denoted as I CHRG_LIM1 , and the first charging current limiting value may be a default for the rechargeable battery 1013 set by the electronic device 101.
  • Charge current limit value After the electronic device 101 and the power adapter 102 are electrically connected through the charging cable 103, and the electronic device 101 detects that the power adapter 102 current or voltage output exists, the CPU 1011 of the electronic device 101 acquires the current charging current of the rechargeable battery 1013 from the charging management chip 1012.
  • the value I CHRG1 is determined whether the current charging current value of the rechargeable battery 1013 is greater than a preset multiple of the first charging current limit value, for example, whether I CHRG1 is greater than 0.95 times I CHRG_LIM1 ; if I CHRG1 is less than or equal to 0.95 times I CHRG_LIM1
  • the CPU 1011 sends a first voltage adjustment command to the MCU 1021 of the power adapter 102.
  • the MCU 1021 increases the output voltage V BUS_A of the power adapter 102 in response to the first voltage adjustment command.
  • the CPU 1011 manages by charging.
  • the chip 1012 obtains the current charging current value I CHRG2 of the rechargeable battery 1013 again, and determines whether I CHRG2 is greater than 0.95 times I CHRG_LIM1 .
  • the CPU 1011 determines that I CHRG2 is greater than 0.95 times of I CHRG_LIM1
  • the CPU 1011 sends a second voltage adjustment command to the MCU 1021.
  • MCU1021 stops adjusting according to the second voltage adjustment command Source adapter output voltage V BUS_A 102, thereby charging the battery charging current can be made close to or equal to 1013 of the first charging current limit settings of the current.
  • the CPU 1011 obtains the first input voltage of the electronic device 101 sampled by the charging management chip 1012 from the charging management chip 1012.
  • the CPU 1011 sends a voltage hold command to the MCU 1021, and the MCU 1021 keeps the output voltage V BUS_A of the power adapter 102 unchanged in response to the voltage hold command.
  • the CPU 1011 charges the charging battery 1013 by the first charging current.
  • a charging current is adjusted to the second charging current.
  • the CPU 1011 can adjust the current charging current limit value of the rechargeable battery 1013 from the first charging current limiting value I CHRG_LIM1 to the second charging current limiting value I CHRG_LIM2 , so that the rechargeable battery 1013 is to be charged.
  • the charging current is adjusted by the first charging current to the second charging current.
  • the second charging current limit value may be greater than the first charging current limiting value, or may be smaller than the first charging current limiting value.
  • I CHRG_LIM2 less than I CHRG_LIM1 as an example.
  • the current charging current value of the rechargeable battery 1013 necessarily decreases, and is close to or equal to I CHRG_LIM2 , that is to say, The second charging current is less than the first charging current, thereby causing the input current I IN of the electronic device 101 to drop. Because the power required by the rechargeable battery 1013 of the electronic device 101 decreases at this time, the load carried by the power adapter 102 also drops.
  • the output current of the power adapter 102 that is, It is the input current I IN of the electronic device 101 that necessarily drops.
  • the CPU 1011 of the electronic device 101 acquires the second input voltage value V BUS — D2 of the electronic device 101 at this time through the charging management chip 1012 , and acquires the output current value of the power adapter 102 at this time through the MCU 1021 , that is, acquires the second time of the electronic device 101 at this time. Enter the current value I IN2 .
  • the CPU 1011 calculates the resistance of the charging cable based on the first input voltage value V BUS — D1 , the first input current value I IN1 , the second input voltage value V BUS — D2 , and the second input current value I IN2 .
  • equation (1) can be obtained:
  • the CPU 1011 of the electronic device 101 substitutes the first input voltage value V BUS — D1 , the first input current value I IN1 , the second input voltage value V BUS — D2 , and the second input current value I IN2 into the equation (2), and the charging cable can be calculated.
  • the resistance value R C The CPU 1011 can search the mapping table between the preset resistance value and the current capability of the electronic device 101 according to the calculated resistance value R C of the charging cable, and obtain the flow capacity corresponding to the resistance value R C of the charging cable. .
  • the mapping table between the resistance value and the current capability can be as shown in Table 1.
  • the electronic device may determine whether the charging cable matches the power adapter according to the current capability of the charging cable and the current configuration value reported by the power adapter. For example, if the electronic device determines that the charging cable is a normal charging cable according to the flow capacity of the charging cable, and determines that the power adapter is a fast charging adapter according to the current configuration value of the power adapter end reported by the power adapter, determine the charging cable. Does not match the power adapter. At this time, if you continue to use the unmatched charging cable and power adapter to charge the electronic device, there is a potential safety hazard.
  • the electronic device can output an alarm message to prompt the electronic device user charging cable and the power adapter to not match; or the electronic device can send a light flashing command to the power adapter, and the power adapter response light blinks the command control light to blink to prompt Users have security risks.
  • the CPU of the electronic device can send a current adjustment command to the MCU of the power adapter end according to the flow capacity of the charging cable, and the MCU responds to the current adjustment command to adjust the power supply.
  • the current configuration value of the adapter end ensures that the output current value of the power adapter end is less than or equal to the current value of the charging cable, thereby achieving the purpose of safety protection and controlling the charging speed.
  • the electronic device after the electronic device determines the flow capacity value of the charging cable, the electronic device sends the current capability value of the charging cable to the power adapter, and the power adapter determines the flow capacity value of the charging cable. Check whether the power adapter and the charging cable match and report the judgment result to the power adapter.
  • the method for detecting the traffic capacity of the cable does not need to change the structure of the existing interface and the charging cable of the electronic device, and can ensure that the EMI characteristics of the electronic device are not affected; Some charging cable interface design, technology migration cost is low, compatibility is good; and the data required for detecting the cable passing capacity can be obtained on the basis of the existing fast charging scheme, and the detection circuit is not needed, further reducing R&D costs.
  • the charging current of the rechargeable battery of the electronic device is the first charging current
  • the first input voltage and the first input current of the electronic device are first acquired.
  • the first charging current is greater than the charging limit of the preset multiple of the rechargeable battery Flow value
  • then adjusting the charging current of the rechargeable battery from the first charging current to the second charging current and acquiring the second input voltage and the second input current of the electronic device, and finally according to the first input voltage, the first input current, the first The input voltage and the second input current are calculated, and the resistance of the charging cable is calculated, and the current flow rate of the charging cable is determined according to the calculated resistance, so that the current capability of the charging cable can be quickly determined without changing the electronic device or The structure of the cable is good.
  • FIG. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
  • the electronic device described in the embodiment of the present invention includes a processor 301, a rechargeable battery 302, and a charging management chip 303:
  • the processor 301 is configured to:
  • the charging current of the rechargeable battery 302 of the electronic device is the first charging current, acquiring the first input voltage and the first input current of the electronic device, where The first charging current is greater than a preset current limit of the rechargeable battery 302;
  • the charging current of the rechargeable battery 302 is the second charging current, acquiring the second input voltage and the second input current of the electronic device;
  • the processor 301 is further configured to:
  • the processor 301 is configured to acquire a first input voltage and a first input current of the electronic device when the acquired charging current is greater than the preset multiple of the charging current limit value;
  • the processor 301 is further configured to: when the obtained charging current is less than or equal to the preset current limiting current limiting value, control the power adapter to increase a voltage value output by the power adapter, to The charging current value of the rechargeable battery 302 is made larger than the preset multiple of the charging current limit value.
  • the power adapter includes a first data pin, a second data pin, and a microprocessor, the first data pin, the second data pin are disconnected, and are electrically connected a microprocessor, wherein the microprocessor is in communication connection with the processor 301 through the first data pin and the second data pin;
  • the processor 301 is specifically configured to:
  • the processor 301 is specifically configured to:
  • the resistance of the charging cable is calculated using the voltage difference and the current difference.
  • the processor 301 is specifically configured to:
  • a mapping table between the resistance and the current capability is used to determine the current flow rate of the charging cable.
  • the processor 301 first acquires the first input voltage of the electronic device and the first An input current, wherein the first charging current is greater than a preset current limit of the rechargeable battery 302, and then the processor 301 adjusts the charging current of the rechargeable battery 302 from the first charging current to the second charging current, and acquires the electronic a second input voltage and a second input current of the device, and finally the processor 301 calculates a resistance of the charging cable according to the first input voltage, the first input current, the second input voltage, and the second input current, and according to the calculated The resistor determines the current flow rate of the charging cable, so that the flow capacity of the charging cable can be quickly determined without changing the structure of the electronic device or the cable, and the compatibility is good.
  • the present invention also provides a computer readable storage medium having stored therein instructions that, when run on a computer, cause the computer to execute the cable of the above method embodiments The method of detecting the flow capacity.
  • the present invention also provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of detecting the cable flow capability described in the above method embodiments.
  • the present invention also provides a terminal, including a processor, an input device, an output device, a communication interface, and a memory, wherein the processor, the input device, the output device, the communication interface, and the memory are connected to each other, wherein
  • the memory is used to store a computer program, the computer program includes program instructions, and the processor is configured to invoke the program instructions to perform the method for detecting a cable flow capability described in the foregoing method embodiments.
  • the steps in the method of the embodiment of the present invention may be sequentially adjusted, merged, and deleted according to actual needs.
  • the modules in the electronic device in the embodiment of the present invention may be combined, divided, and deleted according to actual needs.
  • the program can be stored in a computer readable storage medium, and the storage medium can include: Flash disk, Read-Only Memory (ROM), Random Access Memory (RAM), disk or optical disk.

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

Abstract

L'invention concerne un procédé de détection de la capacité de décharge de courant d'un câble, et un dispositif électronique. Le procédé comprend les étapes suivantes : après raccordement d'un dispositif électronique et d'un adaptateur de courant par l'intermédiaire d'un câble de charge, lorsqu'un courant de charge d'une batterie rechargeable du dispositif électronique correspond à un premier courant de charge, acquisition d'une première tension d'entrée et d'un premier courant d'entrée du dispositif électronique, le premier courant de charge étant supérieur à un multiple prédéfini d'une valeur limite de courant de charge de la batterie rechargeable (201) ; ajustement du courant de charge de la batterie rechargeable afin de le faire passer du premier courant de charge à un second courant de charge (202) ; lorsque le courant de charge de la batterie rechargeable correspond au second courant de charge, acquisition d'une seconde tension d'entrée et d'un second courant d'entrée du dispositif électronique (203) ; et calcul de la résistance du câble de charge en fonction de la première tension d'entrée, du premier courant d'entrée, de la seconde tension d'entrée et du second courant d'entrée, et détermination du flux électrique dans le câble de charge en fonction de la résistance calculée (204). De cette manière, la capacité de décharge de courant d'un câble de charge (103) peut être rapidement déterminée sans modifier la structure d'un dispositif électronique (101) ou d'un câble, et la compatibilité est bonne.
PCT/CN2017/106828 2017-10-19 2017-10-19 Procédé de détection de la capacité de décharge de courant d'un câble, et dispositif électronique Ceased WO2019075687A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201780095269.4A CN111316523A (zh) 2017-10-19 2017-10-19 线缆通流能力的检测方法及电子设备
PCT/CN2017/106828 WO2019075687A1 (fr) 2017-10-19 2017-10-19 Procédé de détection de la capacité de décharge de courant d'un câble, et dispositif électronique

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Application Number Priority Date Filing Date Title
PCT/CN2017/106828 WO2019075687A1 (fr) 2017-10-19 2017-10-19 Procédé de détection de la capacité de décharge de courant d'un câble, et dispositif électronique

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114221400A (zh) * 2021-11-04 2022-03-22 荣耀终端有限公司 一种充电线缆的阻抗检测方法、电子设备和供电设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115441561A (zh) * 2022-09-30 2022-12-06 联想(北京)有限公司 一种充电线充电控制方法和充电线
CN116207817A (zh) * 2023-01-12 2023-06-02 维沃移动通信有限公司 充电方法、装置、电子设备及可读存储介质

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013113400A1 (fr) * 2012-02-03 2013-08-08 Siemens Aktiengesellschaft Procédé de protection d'un câble de recharge et dispositif de recharge
CN106026228A (zh) * 2016-05-26 2016-10-12 维沃移动通信有限公司 一种充电usb线、适配器及移动终端
WO2016183802A1 (fr) * 2015-05-19 2016-11-24 华为技术有限公司 Procédé de charge, dispositif de charge et terminal
CN106374309A (zh) * 2016-11-02 2017-02-01 上海传英信息技术有限公司 Usb传输线、移动终端及usb充电方法
CN106410882A (zh) * 2016-05-18 2017-02-15 深圳天珑无线科技有限公司 充电器及usb充电系统的充电方法
CN206479580U (zh) * 2016-10-26 2017-09-08 珠海市魅族科技有限公司 负载的充电线路的阻抗检测电路、充电芯片和终端

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104253458B (zh) * 2013-06-28 2018-06-15 富泰华工业（深圳）有限公司 Usb充电线缆的性能测试系统、测试方法及电子装置
TWI526803B (zh) * 2014-12-22 2016-03-21 華碩電腦股份有限公司 供電控制方法及應用其之可攜式電子裝置
CN107196372B (zh) * 2017-06-30 2021-03-09 北京小米移动软件有限公司 充电方法及装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013113400A1 (fr) * 2012-02-03 2013-08-08 Siemens Aktiengesellschaft Procédé de protection d'un câble de recharge et dispositif de recharge
WO2016183802A1 (fr) * 2015-05-19 2016-11-24 华为技术有限公司 Procédé de charge, dispositif de charge et terminal
CN106410882A (zh) * 2016-05-18 2017-02-15 深圳天珑无线科技有限公司 充电器及usb充电系统的充电方法
CN106026228A (zh) * 2016-05-26 2016-10-12 维沃移动通信有限公司 一种充电usb线、适配器及移动终端
CN206479580U (zh) * 2016-10-26 2017-09-08 珠海市魅族科技有限公司 负载的充电线路的阻抗检测电路、充电芯片和终端
CN106374309A (zh) * 2016-11-02 2017-02-01 上海传英信息技术有限公司 Usb传输线、移动终端及usb充电方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114221400A (zh) * 2021-11-04 2022-03-22 荣耀终端有限公司 一种充电线缆的阻抗检测方法、电子设备和供电设备
EP4199304A4 (fr) * 2021-11-04 2024-03-13 Honor Device Co., Ltd. Procédé de détection d'impédance pour câble de charge, dispositif électronique et dispositif d'alimentation en puissance

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