WO2017201734A1 - Carte de protection de batterie, batterie et terminal mobile - Google Patents

Carte de protection de batterie, batterie et terminal mobile Download PDF

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Publication number
WO2017201734A1
WO2017201734A1 PCT/CN2016/083691 CN2016083691W WO2017201734A1 WO 2017201734 A1 WO2017201734 A1 WO 2017201734A1 CN 2016083691 W CN2016083691 W CN 2016083691W WO 2017201734 A1 WO2017201734 A1 WO 2017201734A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit
protection
charging
impedance
battery
Prior art date
Application number
PCT/CN2016/083691
Other languages
English (en)
Chinese (zh)
Inventor
杨波
张俊
Original Assignee
广东欧珀移动通信有限公司
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 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Priority to CN201680001592.6A priority Critical patent/CN106463991B/zh
Priority to PCT/CN2016/083691 priority patent/WO2017201734A1/fr
Priority to PCT/CN2017/085793 priority patent/WO2017202349A1/fr
Priority to JP2018554754A priority patent/JP6665317B2/ja
Priority to KR1020187029583A priority patent/KR102121545B1/ko
Priority to US15/606,463 priority patent/US10644520B2/en
Publication of WO2017201734A1 publication Critical patent/WO2017201734A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • 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
    • H02J7/0086—
    • H02J7/0091—

Definitions

  • Embodiments of the present invention relate to the field of mobile terminals, and, more particularly, to a battery protection board, a battery, and a mobile terminal.
  • a battery protection board is generally provided inside the battery to provide safety protection for charging and discharging of the battery.
  • the battery protection board is prone to heat, and with the development of fast charging technology, the large charging current causes the heating phenomenon of the battery protection board to become more and more serious.
  • the battery is very sensitive to temperature, and the heat of the battery protection board will affect the service life of the battery. Therefore, the problem of heat generation of the battery protection board needs to be solved.
  • the application provides a battery protection board, a battery and a mobile terminal to reduce the heat generation of the battery protection board.
  • a first aspect provides a battery protection board for a mobile terminal, including: a protection circuit, the protection circuit is located in a charging and discharging circuit of the mobile terminal; and a detection circuit, the detection circuit is connected to the protection circuit, During the charging and discharging of the battery through the charging and discharging circuit, the detecting circuit is configured to: detect a voltage drop generated by an impedance of at least part of the circuit in the protection circuit; according to an impedance of the at least part of the circuit, and The voltage drop determines a charging current or a discharging current of the charging and discharging circuit.
  • a battery comprising: a battery cell; and a battery protection plate as described in the first aspect, the battery protection plate being coupled to the battery cell.
  • a mobile terminal comprising: a charging interface; and a battery as described in the second aspect, the battery being connected to the charging interface.
  • the detecting circuit is further configured to: determine, according to a charging current or a discharging current of the charging and discharging circuit, whether an abnormality occurs in a charging and discharging process of the battery; and an abnormality occurs in the charging and discharging process.
  • the charge and discharge circuit is controlled to be disconnected by the protection circuit.
  • the detecting circuit is further configured to: detect a temperature of the battery protection board; determine the at least part according to a temperature of the battery protection board and a pre-stored correspondence between temperature and impedance The impedance of the circuit.
  • the protection circuit includes a first protection circuit and a second protection circuit
  • the detection circuit includes a first detection circuit and a second detection circuit
  • the first detection circuit passes the first protection The circuit controls on and off of the charging and discharging circuit
  • the second detecting circuit controls on and off of the charging and discharging circuit by the second protection circuit
  • the second protection circuit is capable of being in the first protection circuit
  • the first detecting circuit is connected to both ends of the first protection circuit, and the first detecting circuit is specifically configured to detect a voltage drop generated by an impedance of the first protection circuit, and Determining a charging current or a discharging current of the charging and discharging circuit according to an impedance of the first protection circuit and a voltage drop generated by an impedance of the first protection circuit; the second detecting circuit and the second protection circuit
  • the two detecting circuits are specifically configured to detect a voltage drop generated by the impedance of the second protection circuit, and generate the voltage according to the impedance of the second protection circuit and the impedance of the second protection circuit. The voltage drop determines the charging current or the discharging current of the charging and discharging circuit.
  • the first detecting circuit is connected to both ends of the first protection circuit, and the first detecting circuit is specifically configured to detect a voltage drop generated by an impedance of the first protection circuit, and Determining a charging current or a discharging current of the charging and discharging circuit according to an impedance of the first protection circuit and a voltage drop generated by an impedance of the first protection circuit; two of the second detecting circuit and the protection circuit Connected to the end, the second detecting circuit is specifically configured to detect a voltage drop generated by the impedance of the protection circuit, and determine the charging and discharging according to the impedance of the protection circuit and the voltage drop generated by the impedance of the protection circuit.
  • the charging current or discharge current of the loop is specifically configured to detect a voltage drop generated by an impedance of the first protection circuit, and Determining a charging current or a discharging current of the charging and discharging circuit according to an impedance of the first protection circuit and a voltage drop generated by an impedance of the first protection circuit; two
  • the first detecting circuit is connected to both ends of the protection circuit, and the first detecting circuit is specifically configured to detect a voltage drop generated by an impedance of the protection circuit, and according to the protection Determining a charging current or a discharging current of the charging and discharging circuit by an impedance of the circuit and a voltage drop generated by the impedance of the protection circuit;
  • the second detecting circuit is connected to both ends of the protection circuit, and the second detecting The circuit is specifically configured to detect a voltage drop generated by an impedance of the protection circuit, and determine the charge and discharge according to an impedance of the protection circuit and a voltage drop generated by an impedance of the protection circuit The charging current or discharge current of the loop.
  • the first detecting circuit is connected to both ends of the protection circuit, and the first detecting circuit is specifically configured to detect a voltage drop generated by an impedance of the protection circuit, and according to the protection Determining a charging current or a discharging current of the charging and discharging circuit by an impedance of the circuit and a voltage drop generated by the impedance of the protection circuit;
  • the second detecting circuit is connected to both ends of the second protection circuit, the The second detecting circuit is configured to detect a voltage drop generated by the impedance of the second protection circuit, and determine the charging and discharging circuit according to the impedance of the second protection circuit and the voltage drop generated by the impedance of the second protection circuit Charge current or discharge current.
  • the first detecting circuit is further configured to detect a battery voltage of the mobile terminal; and the second detecting circuit is further configured to detect a cell voltage of the mobile terminal.
  • the impedance of the at least a portion of the circuitry includes an impedance of the copper traces, the copper traces being copper traces of the impedance design.
  • the abnormality of the charge and discharge process of the battery includes at least one of the following: overcharging, overdischarging, and shorting of the battery.
  • the determining whether an abnormality occurs in the charging and discharging process of the battery according to the charging current or the discharging current of the charging and discharging circuit may include: charging current or discharging current of the charging and discharging circuit The comparison may be performed with a preset current threshold (the thresholds of the charging current and the discharging current may be the same or different); when the charging current or the discharging current is greater than the current threshold, it is determined that an abnormality occurs in the charging and discharging process of the battery.
  • the mobile terminal supports a normal charging mode and a fast charging mode, wherein the charging speed of the fast charging mode is greater than the charging speed of the normal charging mode.
  • the charging current of the fast charging mode is greater than the charging current of the normal charging mode.
  • the charging voltage of the fast charging mode is greater than the charging voltage of the normal charging mode.
  • the mobile terminal in the fast charging mode, performs two-way communication with an adapter through the charging interface.
  • the total impedance of the battery protection board can be reduced, thereby reducing the heat generation of the battery protection board.
  • FIG. 1 is a diagram showing an example of a control chip in a detection circuit of an embodiment of the present invention.
  • FIG. 2 is a diagram showing an example of a protection circuit of an embodiment of the present invention.
  • FIG. 3 is a circuit diagram of a battery protection board according to an embodiment of the present invention.
  • FIG. 4 is a circuit diagram of a battery protection board according to an embodiment of the present invention.
  • FIG. 5 is a circuit diagram of a battery protection board according to an embodiment of the present invention.
  • Fig. 6 is a circuit diagram of a battery protection board according to an embodiment of the present invention.
  • Fig. 7 is a schematic structural view of a battery according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
  • the battery protection board generally includes a detection circuit and a protection circuit, and the detection circuit detects whether an abnormality occurs in the charging and discharging process of the battery, such as whether overcharge, overdischarge, and short circuit occur. If an abnormality occurs, the charge and discharge circuit of the battery can be controlled to be disconnected by the protection circuit.
  • the detection circuit generally detects whether an abnormality has occurred in the charging and discharging process of the battery by measuring a voltage drop (or a pressure difference).
  • a voltage drop or a pressure difference
  • an impedance device dedicated to voltage drop is generally connected in series on the charge and discharge circuit, and then the detection circuit determines whether the battery is charged or discharged abnormally by detecting a voltage drop across the impedance device ( For example, the charge and discharge current is measured by a voltage drop, and then the charge and discharge current is compared with a current threshold).
  • the impedance of the existing device in the battery protection board can be used instead of the special impedance device, so that it is not necessary to introduce a special impedance device, so that the overall impedance of the battery protection board is lowered.
  • the detecting circuit can detect a voltage drop caused by an impedance of at least a portion of the circuits in the protection circuit, that is, by replacing the special impedance device with the impedance of at least part of the circuits in the protection circuit, Thereby reducing the heat generation of the battery protection board.
  • the battery protection board may include a detection circuit and a protection circuit; in some embodiments, the battery protection board may include two detection circuits, and two protections corresponding to the two detection circuits in one-to-one correspondence Circuitry; In some embodiments, the battery protection board can include more detection circuitry and protection circuitry.
  • the battery protection board with dual protection mechanism is taken as an example to describe the form and function of each circuit in the battery protection board in detail.
  • the battery protection board having the dual protection mechanism may include: a first protection circuit for performing first weight protection, and a first detection circuit corresponding to the first protection protection circuit; a second protection circuit for performing second protection, and The second detection circuit corresponding to the second protection circuit.
  • the first protection circuit can implement conduction and shutdown of the charge and discharge circuit according to the detection result of the first detection circuit, and such protection can be a basic protection of the battery protection board.
  • the second protection circuit can implement the conduction and shutdown of the charge and discharge circuit according to the detection result of the second detection circuit, such protection can be more biased toward safety protection, and the protection provided by the second protection circuit can be regarded as It is the last pass of the protection mechanism provided by the battery protection board.
  • the second heavy protection can be triggered after the first heavy protection fails. From a safety point of view, the second protection is very important, because once the second heavy protection is abnormal, there is a high possibility of serious accidents such as battery burning and explosion.
  • the first detection circuit can mainly perform one or more of the following functions: detection of battery charging current, detection of battery discharge current, detection of battery voltage, temperature detection of battery protection board, and different temperatures Impedance compensation, etc. Furthermore, the first detection circuit can implement control of the first protection circuit. In some embodiments, the first detection circuit can also have some data processing capabilities. In some embodiments, the first detecting circuit may save the written data or the calculation result. For example, the first detecting circuit may integrate the memory, and the written data or the calculation result may be saved through the memory, such as saving the protection circuit. Data of the correspondence between impedance and temperature.
  • the first detecting circuit may include an integrated circuit (IC) chip
  • FIG. 1 shows an example of an IC chip.
  • the IC chip in Figure 1 includes a plurality of pins, and the functions of each pin are shown in the following table. It should be understood that the IC chip in FIG. 1 is only an example, and the pins of the IC chip can be increased or decreased according to actual conditions.
  • the first protection circuit can be primarily comprised of a switching device. In some embodiments, the first protection circuit can achieve bidirectional turn-off (ie, turn-off of the charge direction and discharge direction). In some embodiments, the first protection circuit may have a low impedance at turn-on and a high impedance at turn-off. In some embodiments, the first protection circuit can be characterized by repeated turn-on and turn-off. The first protection circuit can be controlled by the first detection circuit.
  • the first protection circuit may adopt a structure as shown in FIG. 2, that is, the on/off of the charge and discharge circuit is realized by a pair of back-to-back Metal Oxide Semiconductor (MOS) tubes.
  • the control end of the MOS tube can be connected to the first detecting circuit, such as the OC and OD pins in Table 1, and the input and output ends of the MOS tube can be connected in series in the charging and discharging circuit of the battery.
  • FIG. 2 is only an example structure of the protection circuit, but the embodiment of the present invention is not limited thereto. In practice, any other switch structure may be employed.
  • the second detection circuit can mainly perform one or more of the following functions: battery charging current detection, battery discharge current detection, cell voltage detection, battery protection panel temperature detection, impedance at different temperatures Compensation, etc.
  • the second detection circuit can implement control of the second protection circuit.
  • the second detection circuit can have some data processing capabilities.
  • the second detection circuit can save the input data or the calculation result, such as data that preserves the correspondence between the impedance and the temperature in the protection circuit.
  • the second detection circuit can be implemented the same as or similar to the first detection circuit. Function, but some parameters or technical indicators of the two can be different.
  • the second detecting circuit can be used to detect the cell voltage to ensure that the cell is not overcharged, but the first detecting circuit can be used to detect the battery voltage; for example, the second detecting circuit can protect the current, voltage, temperature, etc.
  • the value may be slightly larger than the first detection circuit, such that the second detection circuit may continue to take over the protection task of the battery after the first heavy protection fails.
  • the second detection circuit may have the same or different functions as the first detection circuit, and the two may be redundant or complement each other to realize the protection of the battery, which is not specifically limited in the embodiment of the present invention.
  • the second detecting circuit may include an IC chip as shown in FIG. 1 , through which the protection of the battery charging and discharging process is realized, and the specific description of the IC chip is as described above.
  • the second protection circuit can be primarily comprised of a switching device. In some embodiments, the second protection circuit can achieve bidirectional turn-off (ie, turn-off of the charge direction and discharge direction). In some embodiments, the second protection circuit may have a low impedance at turn-on and a high impedance at turn-off. In some embodiments, the second protection circuit can be characterized by repeated turn-on and turn-off. The second protection circuit can be controlled by the second detection circuit.
  • the second protection circuit can adopt the structure as shown in FIG. 2, that is, the on/off of the battery charge and discharge circuit is realized by a pair of back-to-back MOS tubes.
  • the control end of the MOS tube can be connected to the second detecting circuit, for example, connected to the OC and OD pins in Table 1, and the input and output ends of the MOS tube can be connected in series in the charging and discharging circuit of the battery.
  • FIG. 2 is only an example structure of the protection circuit, but the embodiment of the present invention is not limited thereto. In practice, any other switch structure may be employed.
  • V1 and V2 in FIG. 3 to FIG. 6 respectively indicate the output voltages at the two ends of the cell, but the size relationship between V1 and V2 is not specifically limited in the embodiment of the present invention, and V1-V2>0 or V1 may be used. -V2 ⁇ 0.
  • FIG. 3 is a circuit diagram of a battery protection board according to an embodiment of the present invention.
  • the first detecting circuit is connected to both ends of the first protection circuit, and the charging current or the discharging current of the charging circuit is determined by detecting the voltage drop generated by the impedance in the first protection circuit.
  • the second detecting circuit is connected to both ends of the second protection circuit, and the charging current or the discharging current of the charging circuit is determined by detecting a voltage drop generated by the impedance in the second protection circuit.
  • FIG. 4 is a circuit diagram of a battery protection board according to an embodiment of the present invention.
  • the first test The circuit is connected at both ends of the first protection circuit, and the charging current or the discharging current of the charging circuit is determined by detecting a voltage drop generated by the impedance in the first protection circuit.
  • the second detecting circuit is connected across the entire protection circuit (ie, the first protection circuit and the second protection circuit), and determines a charging current or a discharging current of the charging circuit by detecting a voltage drop generated by the impedance in the entire protection circuit. With such an arrangement, the connection mode of the second detection circuit is more flexible.
  • the second protection circuit can set a lower impedance. In this way, the impedance of the battery protection board can be further reduced, and the heat generation of the battery protection board can be reduced.
  • FIG. 5 is a circuit diagram of a battery protection board according to an embodiment of the present invention.
  • the first detecting circuit is connected across the entire protection circuit (ie, the first protection circuit and the second protection circuit), and the charging current of the charging circuit is determined by detecting a voltage drop generated by the impedance in the entire protection circuit or Discharge current.
  • the second detecting circuit is connected across the entire protection circuit (ie, the first protection circuit and the second protection circuit), and determines a charging current or a discharging current of the charging circuit by detecting a voltage drop generated by the impedance in the entire protection circuit. With such an arrangement, the connection manner of the first detection circuit and the second detection circuit is more flexible.
  • both the first protection circuit and the second protection circuit can set a lower impedance to ensure both The sum of the impedances can be used for the voltage drop detection, which can further reduce the impedance of the battery protection board and reduce the heat generation of the battery protection board.
  • Fig. 6 is a circuit diagram of a battery protection board according to an embodiment of the present invention.
  • the first detecting circuit is connected across the entire protection circuit (ie, the first protection circuit and the second protection circuit), and the charging current of the charging circuit is determined by detecting a voltage drop generated by the impedance in the entire protection circuit or Discharge current.
  • the second detecting circuit is connected to both ends of the second protection circuit, and the charging current or the discharging current of the charging circuit is determined by detecting a voltage drop generated by the impedance in the second protection circuit. With such an arrangement, the connection manner of the first detection circuit is more flexible.
  • the impedance of the second protection circuit is sufficient for detection, and the first protection circuit can set a lower impedance. In this way, the impedance of the battery protection board can be further reduced, and the heat generation of the battery protection board can be reduced.
  • the embodiment of the invention replaces the special impedance device by the impedance in the protection circuit, which not only saves the device, reduces the failure rate of the battery protection board, but also reduces the overall impedance of the battery protection board and reduces the heat generation of the battery protection board.
  • first detecting circuit and the second detecting circuit in the above may be the same or different, and they can be flexibly designed with the first protection circuit and the second protection circuit to achieve different effects. fruit.
  • a printed circuit board (PCB) copper trace may be performed in a protection circuit (which may be a first protection circuit, or a second protection circuit, or both). Impedance design. When the impedance of the protection circuit is insufficient, the impedance design of the copper trace can compensate for the problem of insufficient impedance in the protection circuit.
  • PCB printed circuit board
  • the impedance in the protection circuit may change according to the temperature change of the battery protection board.
  • the correspondence relationship between the impedance and the temperature in the protection circuit may be stored in advance, and in actual detection, the battery may be used according to the battery.
  • the temperature of the protection board finds the corresponding impedance and realizes temperature compensation, so that the detection circuit has high detection precision throughout the working temperature range.
  • the detecting circuit may determine whether an abnormality occurs in the charging and discharging process of the battery based on the charging current or the discharging current; and control the charging and discharging circuit to be broken by the protection circuit in a case where an abnormality occurs in the charging and discharging process open.
  • the detecting circuit may send the measured charging current value or the discharging current value to the main board of the mobile terminal, and display the charging current value or the discharging current value on the display screen of the mobile terminal through the main board of the mobile terminal. on.
  • the battery protection panel of the embodiment of the present invention has been described in detail above with reference to FIGS. 1 through 6.
  • the battery and the mobile terminal of the embodiment of the present invention will be described in detail below with reference to FIGS. 7 and 8.
  • Fig. 7 is a schematic structural view of a battery according to an embodiment of the present invention.
  • the battery 700 of Figure 7 includes:
  • a battery protection board 720 is connected to the battery cell 710.
  • the battery protection board 720 in FIG. 7 can adopt the battery protection board described above, and to avoid repetition, it will not be described in detail herein.
  • FIG. 8 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
  • the mobile terminal 800 of FIG. 8 includes:
  • a battery 700 is connected to the charging interface 810.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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

Abstract

La présente invention porte, dans des modes de réalisation, sur une carte de protection de batterie, sur une batterie et sur un terminal mobile. La carte de protection de batterie comprend : des circuits de protection situés dans une boucle de charge/décharge d'un terminal mobile ; et des circuits de détection raccordés aux circuits de protection. Dans un processus dans lequel une batterie est chargée ou déchargée par le biais de la boucle de charge/décharge, les circuits de détection sont utilisés : pour détecter une chute de tension générée par l'impédance d'au moins une partie des circuits de protection, et pour déterminer un courant de charge ou de décharge de la boucle de charge/décharge en fonction de l'impédance d'au moins une partie des circuits de protection et de la chute de tension.
PCT/CN2016/083691 2016-05-27 2016-05-27 Carte de protection de batterie, batterie et terminal mobile WO2017201734A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN201680001592.6A CN106463991B (zh) 2016-05-27 2016-05-27 电池保护板、电池和移动终端
PCT/CN2016/083691 WO2017201734A1 (fr) 2016-05-27 2016-05-27 Carte de protection de batterie, batterie et terminal mobile
PCT/CN2017/085793 WO2017202349A1 (fr) 2016-05-27 2017-05-24 Carte de protection de batterie, batterie et terminale mobile
JP2018554754A JP6665317B2 (ja) 2016-05-27 2017-05-24 電池保護基板、電池、および携帯端末
KR1020187029583A KR102121545B1 (ko) 2016-05-27 2017-05-24 배터리 보호 보드, 배터리 및 이동 단말기
US15/606,463 US10644520B2 (en) 2016-05-27 2017-05-26 Battery protection board, battery and mobile terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/083691 WO2017201734A1 (fr) 2016-05-27 2016-05-27 Carte de protection de batterie, batterie et terminal mobile

Related Parent Applications (1)

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PCT/CN2016/083692 Continuation-In-Part WO2017201735A1 (fr) 2016-05-27 2016-05-27 Carte de protection de batterie, batterie et terminal mobile

Related Child Applications (1)

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US15/606,463 Continuation-In-Part US10644520B2 (en) 2016-05-27 2017-05-26 Battery protection board, battery and mobile terminal

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WO2017201734A1 true WO2017201734A1 (fr) 2017-11-30

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WO (1) WO2017201734A1 (fr)

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US10320206B2 (en) 2014-01-28 2019-06-11 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Power adapter, terminal, and method for processing impedance anomalies in charging circuit
CN106463991B (zh) * 2016-05-27 2020-12-18 Oppo广东移动通信有限公司 电池保护板、电池和移动终端
JP6665317B2 (ja) * 2016-05-27 2020-03-13 オッポ広東移動通信有限公司Ｇｕａｎｇｄｏｎｇ Ｏｐｐｏ Ｍｏｂｉｌｅ Ｔｅｌｅｃｏｍｍｕｎｉｃａｔｉｏｎｓ Ｃｏｒｐ．， Ｌｔｄ． 電池保護基板、電池、および携帯端末
CN107453332A (zh) * 2017-09-19 2017-12-08 欣旺达电子股份有限公司 电池保护电路以及电池保护板
CN107808939A (zh) * 2017-09-26 2018-03-16 努比亚技术有限公司 一种终端电池结构和移动终端
CN108973758A (zh) * 2018-08-31 2018-12-11 金华安靠电源科技有限公司 一种电动汽车充电系统的充电识别方法及电动汽车充电电路
CN109873470A (zh) * 2019-01-18 2019-06-11 深圳欣旺达智能科技有限公司 低内阻手机电池保护装置及放电保护电路、充电保护电路
CN111835048B (zh) * 2019-04-22 2022-07-15 添可智能科技有限公司 充放电切换电路及电子设备
CN112671061B (zh) * 2020-12-15 2024-07-23 维沃移动通信有限公司 电池保护板控制系统及终端

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