WO2021238198A1 - Procédé de charge, puce de charge et dispositif terminal - Google Patents

Procédé de charge, puce de charge et dispositif terminal Download PDF

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Publication number
WO2021238198A1
WO2021238198A1 PCT/CN2020/140720 CN2020140720W WO2021238198A1 WO 2021238198 A1 WO2021238198 A1 WO 2021238198A1 CN 2020140720 W CN2020140720 W CN 2020140720W WO 2021238198 A1 WO2021238198 A1 WO 2021238198A1
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Prior art keywords
charging
battery
current value
stage
charging stage
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PCT/CN2020/140720
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English (en)
Chinese (zh)
Inventor
余建明
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广东小天才科技有限公司
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Publication of WO2021238198A1 publication Critical patent/WO2021238198A1/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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • 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
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the embodiments of the present invention relate to the field of terminal technology, and in particular, to a charging method, a charging chip, and a terminal device.
  • wearable devices are becoming more and more miniaturized.
  • the battery space in wearable devices is small, and it is difficult to increase the battery capacity.
  • wearable devices are becoming more and more abundant and have more applications with high power consumption (for example, taking photos). , Video chat and video recording, etc.), making the endurance of wearable devices worse and worse, so the battery utilization should be maximized when charging.
  • the size of the battery of wearable devices is relatively small, which makes the internal resistance of the battery relatively large.
  • the internal resistance of small batteries within 1000mAh reaches more than 250 milliohms.
  • Floating pressure will be reduced, but it is also difficult to completely eliminate, so the battery utilization rate will be very low.
  • the embodiments of the present invention provide a charging method, a charging chip, and a terminal device to solve the problem of low battery utilization in the prior art.
  • the embodiments of the present invention are implemented as follows:
  • a charging method includes: N different charging stages, the N different charging stages are divided according to the power parameters of the battery, and the N different charging stages adopt different charging currents.
  • the battery is charged, and the N is an integer greater than or equal to 2;
  • the first charging stage uses the maximum allowable charging current value of the battery to charge to a preset power parameter, and from the second charging stage to the Nth charging stage, the battery is charged from the preset power parameter until the battery reaches a fully charged state.
  • the charging current value of each charging stage from the charging stage to the Nth charging stage gradually decreases, and the charging current value of the Nth charging stage is less than or equal to a preset current value, and the preset current value is Determined according to the maximum allowable float voltage and the internal resistance of the battery.
  • the method includes:
  • the preset current value is determined according to the quotient of the maximum allowable float voltage and the internal resistance of the battery.
  • the method includes:
  • the value of N is determined according to the internal resistance of the battery and the maximum allowable internal resistance.
  • the decrement amount of the charging current value in each charging stage is the same.
  • the decrement amount of the charging current value is obtained according to the following formula:
  • A represents the decrement of the charging current value
  • I max represents the maximum charging current value
  • I N represents the charging current of the Nth charging stage
  • N represents the total number of charging stages.
  • the power parameter is a percentage of power, or the power parameter is a voltage value.
  • a charging chip including:
  • the charging module is used to charge the battery with different charging currents in N different charging stages, the N different charging stages are divided according to the power parameters of the battery, and the N is an integer greater than or equal to 2 ;
  • the first charging stage uses the maximum allowable charging current value of the battery to charge to a preset power parameter, and from the second charging stage to the Nth charging stage, the battery is charged from the preset power parameter until the battery reaches a fully charged state.
  • the charging current value of each charging stage from the charging stage to the Nth charging stage gradually decreases, and the charging current value of the Nth constant current charging stage is less than or equal to a preset current value, and the preset current The value is determined based on the maximum allowable float voltage and the internal resistance of the battery.
  • a terminal device including the charging chip as in the second aspect.
  • a computer-readable storage medium which stores a computer program that enables a computer to execute the charging method in the first aspect of the embodiments of the present invention or an optional implementation manner thereof.
  • the computer-readable storage medium includes ROM/RAM, magnetic disk or optical disk, and so on.
  • a computer program product which when the computer program product runs on a computer, causes the computer to execute the charging method in the first aspect or an optional implementation manner thereof.
  • the charging can be divided into N different charging stages.
  • the N different charging stages are divided according to the power parameters of the battery.
  • the N different charging stages use different charging currents to perform the charging on the battery.
  • the N is an integer greater than or equal to 2; wherein, the first charging stage uses the maximum allowable charging current value of the battery to charge to a preset power parameter, and from the second charging stage to the Nth charging stage from the preset power The parameter is charged until the battery reaches a fully charged state, the charging current value of each charging stage from the second charging stage to the Nth charging stage decreases sequentially, and the first current of the charging current of the last constant current charging stage The value is less than or equal to a preset current value, and the preset current value is determined according to the maximum allowable float voltage and the internal resistance of the battery.
  • the preset current value is determined according to the maximum allowable float voltage and the internal resistance of the battery, so that the float voltage generated during charging will not be greater than the maximum allowable float voltage, so that the generated float voltage can be smaller, Ensure that the battery capacity can be used to the greatest extent and improve the utilization rate of the battery.
  • Fig. 1 is a schematic diagram 1 of a charging curve provided by an embodiment of the present invention.
  • Figure 2 is a second schematic diagram of a charging curve provided by an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a charging method provided by an embodiment of the present invention.
  • Fig. 4 is a schematic diagram 1 of a charging control system provided by an embodiment of the present invention.
  • FIG. 5 is a third schematic diagram of a charging curve provided by an embodiment of the present invention.
  • FIG. 6 is a schematic diagram 1 of a power detection provided by an embodiment of the present invention.
  • FIG. 7 is a fourth schematic diagram of a charging curve provided by an embodiment of the present invention.
  • FIG. 8 is a second schematic diagram of power detection according to an embodiment of the present invention.
  • FIG. 9 is a second schematic diagram of a charging control system provided by an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a charging chip provided by an embodiment of the present invention.
  • the embodiment of the present invention provides a charging method, a charging chip and a terminal device, which can improve the charging utilization rate.
  • the terminal device involved in the embodiment of the present invention may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal device, a wearable device, an Ultra-Mobile Personal Computer (UMPC), a netbook, or a personal digital assistant (Personal Digital Assistant). Digital Assistant, PDA) and other electronic equipment.
  • the wearable device may be a smart watch, a smart bracelet, a watch phone, a smart foot ring, a smart earring, a smart necklace, a smart earphone, etc., which are not limited in the embodiment of the present invention.
  • the charging method provided by the embodiment of the present invention is particularly suitable for terminal devices with a small battery capacity, for example, wearable devices.
  • wearable devices are becoming more and more miniaturized.
  • the battery space in wearable devices is small, and it is difficult to increase the battery capacity.
  • wearable devices are becoming more and more abundant and have more applications with high power consumption (for example, taking photos). , Video chat and video recording, etc.), making the endurance of wearable devices worse and worse, so the battery utilization should be maximized when charging.
  • the size of the battery of wearable devices is relatively small, which makes the internal resistance of the battery relatively large.
  • the internal resistance of small batteries within 1000mAh reaches more than 250 milliohms.
  • the cut-off current required to fully charge the battery is small.
  • the charge cut-off current required to fully charge the battery is less than 0.2C. (C refers to the capacity of the battery).
  • C refers to the capacity of the battery.
  • an 800mAh battery requires a full cut-off current of 0.2C or 16mAh.
  • the cut-off current of universal charging chip charging on the market is generally above 50mA, which means that the cut-off condition required to be fully charged is not reached, so this will also cause the small-capacity battery to be unable to be fully charged.
  • a charging chip with a small charge cut-off current is selected in the related technology, such as TI's BQ25618, and the cut-off battery can achieve 20-30mA.
  • the disadvantage of this approach is that in the current platform solutions for wearable devices (such as phone watch solutions), phone watches generally have their own charging chip. If an additional charging chip is added, it will not only increase the cost of the product, but also take up There is space for phone watches, so this scheme is rarely applied. And the actual test found that even if the charging chip with a small cut-off current is used, the improvement of the battery utilization rate is still very limited, because the battery's internal resistance is large, and the floating voltage generated during charging is large, which will cause the battery to be charged quickly.
  • the charging method provided by the embodiment of the present invention can solve the above-mentioned existing problems and improve the utilization rate of the battery.
  • the execution subject of the charging method provided by the embodiment of the present invention may be the above-mentioned terminal device, or may be a functional module and/or functional entity in the terminal device that can implement the charging method. Specifically, it can be determined according to actual usage requirements.
  • the embodiment is not limited.
  • a terminal device is taken as an example to illustrate the charging method provided in the embodiment of the present invention.
  • the embodiment of the present invention provides a charging method including: N different charging stages, the N different charging stages are divided according to the battery capacity parameters, the N different charging stages use different charging currents to charge the battery, and N is greater than Or an integer equal to 2.
  • the above-mentioned power parameter is used to characterize the power of the battery.
  • the first charging stage uses the maximum allowable charging current value of the battery to charge to the preset power parameter, from the second charging stage to the Nth charging stage, the battery is charged from the preset power parameter to the fully charged state, and the second charging stage is to the Nth charging stage.
  • the charging current value of each charging stage in the charging stage gradually decreases, and the charging current value of the Nth charging charging stage is less than or equal to the preset current value, which is determined according to the maximum allowable float voltage and battery internal resistance .
  • the present invention can be divided into N different charging stages for charging.
  • the N different charging stages are divided according to the power parameters of the battery.
  • the N different charging stages use different charging currents to charge the battery, and N is greater than or An integer equal to 2; among them, the first charging stage uses the maximum allowable charging current value of the battery to charge to the preset power parameter, and the second charging stage to the Nth charging stage is charged from the preset power parameter until the battery reaches a full state, and the second The charging current value of each charging stage from the charging stage to the Nth charging stage gradually decreases, and the charging current value of the Nth charging stage is less than or equal to the preset current value, and the preset current value is based on the maximum allowable float voltage and battery The internal resistance is determined.
  • the preset current is determined based on the maximum allowable float voltage and the internal resistance of the battery, so that the float voltage generated during charging will not be greater than the maximum allowable float voltage, which can make the generated float voltage smaller and ensure that the battery capacity can be used to the greatest extent. Improved battery utilization.
  • the above-mentioned power parameter may be a percentage of power, or the above-mentioned power parameter may be a voltage value.
  • the charging stages can be divided according to the percentage of power.
  • the charging phase can be divided by referring to the specific method in the following power control method.
  • the charging phase can be divided according to the voltage value.
  • the charging stage can be divided by referring to the specific method in the following voltage control method.
  • the preset current value is determined according to the quotient of the maximum allowable float voltage and the internal resistance of the battery.
  • the value of N is determined according to the internal resistance of the battery and the maximum allowable internal resistance.
  • the charging current value of each charging stage decreases by the same amount.
  • the decrement of the charging current value is obtained according to the following formula:
  • A represents the decrement of the charging current value
  • I max represents the maximum charging current value
  • I N represents the charging current value of the Nth stroke stage
  • N represents the total number of charging stages.
  • the internal resistance of the battery is related to the volume of the battery. The larger the volume, the smaller the internal resistance. In the actual test, the internal resistance of the battery has a certain relationship with the battery voltage. The higher the battery voltage, the greater the internal resistance of the battery. Because the charging process of the battery is the overcharge of positively charged lithium ions from the negative electrode to the positive electrode, the battery voltage is high. When the voltage of the negative electrode is close to 0, there are few lithium ions at this time, which will increase the internal resistance of lithium ions to the positive electrode.
  • the battery will inevitably produce a floating voltage during charging due to the internal resistance of the battery during charging.
  • the traditional charging method is to first charge with constant current and then enter into constant voltage charging. During the entire charging process, the battery can withstand If the battery’s internal resistance is large, the battery cannot be fully charged if the battery’s internal resistance is too large.
  • Figure 1 shows the charging curve of the traditional charging method. In the entire charging curve, first constant current charging and then constant voltage charging (the two charging processes are separated by a dotted line in Figure 1), and the battery can withstand the whole process. The maximum charging current is used for charging. If the internal resistance of the battery is large, it will bring a charging virtual voltage throughout the process.
  • the present invention proposes a segmented constant current charging method, which can actively reduce the charging current through software control when the battery voltage is relatively high or the battery power is relatively large, so that the charging enters a Constant current stage of small current.
  • Fig. 2 shows the charging curve of the charging method provided by the embodiment of the present invention, which can be referred to as a segmented constant current charging method.
  • a segmented constant current charging method As shown in Figure 2, there are 5 charging stages, and the charging currents of the 5 charging stages are sequentially reduced (the charging current of each stage in the figure is represented as I 1 , I 2 , I 3 , I 4 , and I 5 ) , Each time the charging current is reduced, the floating voltage generated during charging can be reduced, and the purpose of fully charging the battery can be achieved.
  • the charging method provided by the embodiment of the present invention includes:
  • the first charging stage of the N charging stages may be a stage for charging with a maximum charging current
  • the second charging stage to the nth charging stage may be referred to as a segmented constant current stage.
  • the internal resistance of the battery is 220 milliohms, divided by 50 milliohms to get 4.4, and rounded by 1 to 5, 5 times of segmented constant current can be used, and the value of N is 5.
  • the voltage will drop after the battery is actually charged. Generally, the drop will be different depending on the internal resistance of the battery, and the drop will exceed 100mV in some cases. In the actual test, if the drop range is between 40mV-50mV, then the battery is generally fully charged (a full battery means that after the charge is completed, the battery is discharged with a current of 0.2C, and the discharge time is not less than 5 hours).
  • a value less than 60mV can be selected as the maximum allowable floating pressure.
  • a float voltage of less than 30mV-40mV can be selected as an acceptable float voltage.
  • 30 mV is used as the maximum allowable floating pressure, and 30 mV is divided by the internal resistance of the battery to obtain the preset current value, and the current value of the last charging stage may be less than or equal to the preset current value.
  • the current I N in the last charging stage is 30mV divided by 200 milliohms to obtain 150mA.
  • the maximum allowable battery charging current I max is divided by n I N obtained by subtracting the current value of each decrement constant A, constant phase segment (i.e. The current value of each stage from 2 to Nth charging stage) is I max -A*n.
  • the corresponding charging current of the corresponding charging stage can be controlled to perform charging.
  • the first power control method that is, the percentage of power is used as the basis for dividing the charging stages
  • the second is the voltage control method, that is, the voltage value is used as the basis for dividing charging. Basis for the stage.
  • the first type power control method.
  • the charging control system is shown in Figure 4, which includes: a controller, a charging module, a fuel gauge and a battery, and the fuel gauge and charging module are all connected to the battery ,
  • the controller is connected to the fuel gauge and the charging module, and the controller can read the battery power information through the fuel gauge to control the charging current of the charging module.
  • the charging method as shown in FIG. 1 can be used to determine the electric quantity percentage m% that usually enters the constant voltage charging stage from the constant current charging stage.
  • the percentage of electricity entering constant voltage charging is between 70% and 85%.
  • m% can take any value from 70% to 85%.
  • the power between (m%-10%) and 94% can be divided into n segments, that is, the nth step is 94%-100%, which is regarded as the Nth charging stage.
  • control logic can be:
  • the first charging stage when the battery capacity is 0%-70%, the charging current is 800mA;
  • the second charging stage when the battery power is 70%-78%, the charging current is 638mA;
  • the third charging stage when the battery power is 78%-87%, the charging current is 476mA;
  • the fourth charging stage When the battery power is 87%-94%, the charging current is 314mA;
  • the fifth charging stage When the battery capacity is 94%-100%, the charging current is 150mA.
  • the battery power percentage range and the charging current value determined by the above method are only exemplary descriptions, and can be adjusted according to requirements in practice.
  • the following uses the above charging method to charge a phone and watch as an example to illustrate the charging effect that the method can actually achieve.
  • the rated battery capacity of the phone watch is 820mAh
  • the actual battery capacity is 840mAh
  • the internal resistance of the battery is between 170-200 milliohms
  • the rated voltage of the battery is 4.4V
  • the maximum charging current is 800mA.
  • the electric current of the segment can be obtained as follows:
  • the first charging stage when the battery capacity is 0%-70%, the charging current is 800Ma.
  • the second charging stage When the battery power is 70%-78%, the charging current is 638mA. According to the unit of the charging chip, the actual value is 650mA.
  • the third charging stage When the battery power is 78%-87%, the charging current is 476mA. According to the current gear of the charging chip, the actual value is 475mA.
  • the fourth charging stage When the battery power is 87%-94%, the charging current is 314mA, and the actual value is 325mA.
  • the fifth charging stage When the battery capacity is 94%-100%, the charging current is 150mA.
  • the obtained charging curve can be shown in Figure 5, and the full battery can be tested with a battery tester.
  • the test result is shown in Figure 6, showing that the battery discharged power is: 831mAh, reaching The rated capacity of the battery.
  • the traditional charging method is used to charge the phone and watch, and the obtained charging curve is shown in Figure 7.
  • the test result of the test power is shown in Figure 8, which shows that the power discharged by the battery is: 781mAh.
  • the charging curve of the traditional charging method only discharges about 781 mAh after being fully charged, which is 50 mAh less than the 831 mAh in the embodiment of the present invention. It can be known from the results obtained in actual implementation that the charging method provided by the embodiment of the present invention can increase the charging capacity compared with the traditional charging method, so that the utilization rate of the battery is greatly improved.
  • the second type voltage control method
  • the charging control system is shown in Figure 9, including a controller, a charging module, and a battery.
  • the controller is connected to the battery and the charging module, and the charging module is connected to the battery, and the controller
  • ADC analog-to-digital converter
  • the battery voltage can be read (usually devices that need to be charged can support this function), and the controller can control the charging module to adjust the charging current.
  • the charging method shown in FIG. 1 may be used to determine the voltage value a that usually enters the constant voltage charging stage from the constant current charging stage.
  • the last step value of 30-40mV is based on actual test experience, the normal voltage of the lithium battery drops to 30-40mV after being fully charged.
  • the range of a-(b-40mV) can be divided into n-1 segments, and the voltage width of each segment is c.
  • n 4 means it is divided into 5 charging stages. From the second charging stage to the Nth charging stage, the voltage of each charging stage The span is ((4.45-0.04)-4.3V)/3 ⁇ 0.04V.
  • control logic can be:
  • the first charging stage when the battery voltage is below 4.3V, the charging current is 800mA;
  • the second charging stage when the battery voltage is 4.3-4.34V, the charging current is 638mA;
  • the third charging stage When the battery voltage is 4.34-4.38, the charging current is 476mA;
  • the fourth charging stage When the battery voltage is 4.38-4.41, the charging current is 314mA;
  • the fifth charging stage When the battery voltage is 4.41-4.45, the charging current is 150mA.
  • the battery voltage value and the charging current value calculated in the above method can be adjusted according to actual conditions.
  • the actual measured data of the voltage control method is close to the data of the power control method, and both can achieve the effect of improving the utilization rate of the battery.
  • an embodiment of the present invention provides a charging chip, and the charging chip includes:
  • the charging module 401 is used for charging N different charging stages with different charging currents, the N different charging stages are divided according to the battery capacity parameters, and N is an integer greater than or equal to 2;
  • the first charging stage uses the maximum allowable charging current value of the battery to charge to the preset power parameter, from the second charging stage to the Nth charging stage, the battery is charged from the preset power parameter to the fully charged state, and the second charging stage is to the Nth charging stage.
  • the charging current value of each charging stage in the charging stage gradually decreases, and the charging current value of the last constant current charging stage is less than or equal to the preset current value, which is determined according to the maximum allowable float voltage and battery internal resistance of.
  • the preset current value is determined according to the quotient of the maximum allowable float voltage and the internal resistance of the battery.
  • the value of N is determined according to the internal resistance of the battery and the maximum allowable internal resistance.
  • the charging current value of each charging stage decreases by the same amount.
  • the decrement of the charging current value is obtained according to the following formula:
  • A represents the decrement of the charging current value
  • I max represents the maximum charging current value
  • I N represents the charging current value of the Nth stroke stage
  • N represents the total number of charging stages.
  • the power parameter is a percentage of power, or the power parameter is a voltage value.
  • the embodiment of the present invention also provides a terminal device, which includes the above-mentioned charging chip.
  • the embodiment of the present invention provides a computer-readable storage medium that stores a computer program, where the computer program causes a computer to execute part or all of the steps of the method in the above method embodiments.
  • the embodiment of the present invention also provides a computer program product, wherein when the computer program product runs on a computer, the computer is caused to execute part or all of the steps of the method in the above method embodiments.
  • the terminal device provided in the embodiment of the present invention can implement each process shown in the foregoing method embodiment, and to avoid repetition, details are not described herein again.
  • the units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, and may be located in one place or distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the aforementioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-accessible memory.
  • the essence of the technical solution of the present invention, or the part that contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a memory.
  • a computer device which may be a personal computer, a server or a network device, etc., specifically a processor in a computer device
  • the program can be stored in a computer-readable storage medium.
  • the storage medium includes read-only Memory (read-only memory, ROM), random access memory (RAM), programmable read-only memory (PROM), erasable programmable read-only memory (erasable programmable read only memory, EPROM), one-time programmable read-only memory (OTPROM), electronically erasable programmable read-only memory (EEPROM), compact disc read-only memory, CD-ROM) or other optical disk storage, magnetic disk storage, tape storage, or any other computer-readable medium that can be used to carry or store data.

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  • Manufacturing & Machinery (AREA)
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Abstract

Procédé de charge, puce de charge et dispositif terminal, appliqués au domaine technique des terminaux, et pouvant résoudre le problème de faible utilisation de batterie pendant la charge. Le procédé comprend: une batterie est chargée à l'aide de différents courants de charge à N étages de charge différents, les N étages de charge différents sont divisés en fonction de paramètres de quantité électrique de la batterie, et N est un nombre entier supérieur ou égal à 2 ; au premier étage de charge, la batterie est chargée à un paramètre de quantité électrique prédéfini en utilisant une valeur de courant de charge maximale autorisée par la batterie ; du deuxième étage de de charge au Nème étage de charge, la batterie est chargée à partir du paramètre de quantité électrique prédéfinie jusqu'à un état complètement chargé ; les valeurs de courant de charge des étages de charge du deuxième étage de charge au Nième étage de charge sont séquentiellement diminuées de manière progressive ; la valeur de courant de charge du Nème étage de charge est inférieure ou égale à une valeur de courant prédéfinie ; la valeur de courant prédéfinie est déterminée par une tension flottante et une résistance interne maximales admissibles de la batterie. Le procédé est appliqué à une scène de charge pour le dispositif terminal.
PCT/CN2020/140720 2020-05-27 2020-12-29 Procédé de charge, puce de charge et dispositif terminal WO2021238198A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN111525651A (zh) * 2020-05-27 2020-08-11 广东小天才科技有限公司 一种充电方法、充电芯片和终端设备
CN112018847B (zh) * 2020-08-27 2022-10-04 蜂巢能源科技有限公司 充电电池的充电处理方法及装置、电动车辆
CN113036887B (zh) * 2021-04-27 2024-07-19 广州小鹏汽车科技有限公司 电芯的极限快充电流确定方法、装置、电子设备及介质
CN113809791A (zh) * 2021-08-11 2021-12-17 Tcl通讯（宁波）有限公司 一种充电控制方法、装置、终端设备及存储介质
CN115765076B (zh) * 2022-11-04 2023-09-01 珠海英集芯半导体有限公司 一种软件模拟电池停充的系统及其方法
CN116826929B (zh) * 2023-08-28 2023-12-05 通号（长沙）轨道交通控制技术有限公司 充电控制方法、充电装置及计算机可读存储介质

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108134424A (zh) * 2018-01-03 2018-06-08 上海传英信息技术有限公司 一种手机充电过程中控制充电电流的方法以及手机充电装置
EP3349324A1 (fr) * 2017-01-13 2018-07-18 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Procédé de commande de charge, dispositif de commande de charge et terminal
CN108767909A (zh) * 2018-03-30 2018-11-06 超威电源有限公司 一种标准的充电曲线及充电方法
CN110417094A (zh) * 2019-08-06 2019-11-05 深圳市瀚强科技股份有限公司 一种电池充电方法和充电设备
CN111146837A (zh) * 2019-12-31 2020-05-12 Oppo广东移动通信有限公司 充电方法及装置、电子设备、存储介质
CN111525651A (zh) * 2020-05-27 2020-08-11 广东小天才科技有限公司 一种充电方法、充电芯片和终端设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3641885B2 (ja) * 1996-11-12 2005-04-27 日産自動車株式会社 電池の充電方法及び充電装置
JP4398489B2 (ja) * 2007-05-29 2010-01-13 レノボ・シンガポール・プライベート・リミテッド 電池パック、機器、および充電制御方法
JP2009201336A (ja) * 2008-02-25 2009-09-03 Iwasaki Electric Co Ltd 充電装置及び充電方法
CN107359378B (zh) * 2017-06-30 2019-08-09 宁德时代新能源科技股份有限公司 电池充电方法、装置和设备
EP3672016B1 (fr) * 2018-09-12 2022-12-28 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Circuit de gestion de charge, terminal et procédé de charge
CN111082487B (zh) * 2019-12-25 2024-02-02 Oppo广东移动通信有限公司 充电控制方法及装置、电子设备

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3349324A1 (fr) * 2017-01-13 2018-07-18 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Procédé de commande de charge, dispositif de commande de charge et terminal
CN108134424A (zh) * 2018-01-03 2018-06-08 上海传英信息技术有限公司 一种手机充电过程中控制充电电流的方法以及手机充电装置
CN108767909A (zh) * 2018-03-30 2018-11-06 超威电源有限公司 一种标准的充电曲线及充电方法
CN110417094A (zh) * 2019-08-06 2019-11-05 深圳市瀚强科技股份有限公司 一种电池充电方法和充电设备
CN111146837A (zh) * 2019-12-31 2020-05-12 Oppo广东移动通信有限公司 充电方法及装置、电子设备、存储介质
CN111525651A (zh) * 2020-05-27 2020-08-11 广东小天才科技有限公司 一种充电方法、充电芯片和终端设备

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