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WO2010048873A1 - Procédé et dispositif pour identifier un type de chargeur - Google Patents

Procédé et dispositif pour identifier un type de chargeur Download PDF

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Publication number
WO2010048873A1
WO2010048873A1 PCT/CN2009/074627 CN2009074627W WO2010048873A1 WO 2010048873 A1 WO2010048873 A1 WO 2010048873A1 CN 2009074627 W CN2009074627 W CN 2009074627W WO 2010048873 A1 WO2010048873 A1 WO 2010048873A1
Authority
WO
WIPO (PCT)
Prior art keywords
charger
pin
type
usb
mini
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2009/074627
Other languages
English (en)
Chinese (zh)
Inventor
侯靖波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Device Co Ltd
Original Assignee
Huawei Device Co Ltd
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 Huawei Device Co Ltd filed Critical Huawei Device Co Ltd
Publication of WO2010048873A1 publication Critical patent/WO2010048873A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4063—Device-to-bus coupling
    • G06F13/4068—Electrical coupling
    • G06F13/4072—Drivers or receivers
    • 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

Definitions

  • the present invention relates to the field of terminal technologies, and in particular, to a method and apparatus for identifying a type of a charger.
  • USB Universal Serial Bus
  • Mini_USB is a miniaturized universal serial bus interface that includes both Type A and Type B.
  • the interface on the device is Mini_U SB-A type, which can be connected to the standard USB interface on the computer through a data cable with Mini_USB-B type interface; it can also be connected to a dedicated charger with Mini_USB-B type interface.
  • the typical value is 650mA; the non-standard charger has a relatively weak current supply capacity, typically 300mA.
  • the computer can also be understood as a charger with a maximum supply capacity of 500 mA.
  • the charging equipment needs to limit the charging current to the minimum value of the three chargers, for example, below 300 mA.
  • the charging safety is guaranteed, when the user uses the standard charger for charging, the charging current is limited, which causes the charging time to become longer and the user feels poor.
  • the probability that users use standard chargers is the biggest, which is also a resource waste for standard chargers.
  • the electrical equipment is limited according to the current supply capacity of the standard charger, for example, limited to 650 mA, it will be marked on the electrical equipment to remind the user not to use other types of charging other than the standard charger. Device. This method poses a greater risk that, if the user mishandles it, it may cause damage to non-standard chargers or even computers.
  • the embodiments of the present invention provide a method and device for identifying a type of a charger, so that the charging current can be set according to the type of the charger, ensuring the safety of the charging, and fully utilizing the power supply capability of the various chargers.
  • the technical solutions are as follows:
  • An embodiment of the present invention provides a method for identifying a type of a charger, and a series voltage dividing resistor is connected between a power output end of the power device and a second pin of the Mini Universal USB bus type Mini_USB-A type interface;
  • the method for identifying a charger type includes:
  • the second pin and the third pin of the Mini_USB-A type interface are set to a high impedance state
  • the type of the connected charger is identified based on the voltage measurement.
  • An embodiment of the present invention further provides an apparatus for identifying a type of a charger, including:
  • a resistance state setting unit configured to set a second bow pin and a third pin of the small universal serial bus Mini_USB-A type interface of the power device to a high impedance state when the charger is detected;
  • a voltage measuring unit configured to measure a voltage of the measuring point after the resistance state setting unit completes the resistance state setting; wherein, between the power output end of the power device and the second pin of the Mini_USB-A type interface There is a voltage dividing resistor connected in series, and the measuring point is located between the Mini_USB-B type interface of the connected charger and the voltage dividing resistor.
  • An identifying unit configured to identify the type of the connected charger according to the measurement result of the voltage measuring unit
  • the above technical solution realizes the identification of the type of the connected charger without any modification and limitation of various types of chargers, so that the charging device can set different charging currents according to the type of the connected charger.
  • the application of the above technical solution can ensure the safety of charging , give full play to the supply capacity of various types of chargers, and enhance user experience.
  • FIG. 1 is a schematic structural diagram of hardware of a powered device end for implementing an embodiment of the method of the present invention
  • FIG. 2 is a schematic diagram of hardware connection of a computer data cable access port in an embodiment of the present invention
  • FIG. 3 is a schematic diagram of hardware connection of a non-standard charger access port according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of hardware connection of a standard charger access port according to an embodiment of the present invention.
  • Figure 5 is a flow chart showing a specific embodiment of the method of the present invention.
  • FIG. 6 is a schematic structural diagram of a device for identifying a charger type according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of an identification unit according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a power-consuming device according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of the identification unit of FIG. 8 according to an embodiment of the present invention.
  • the non-standard charger does not short-circuit Pin2 and Pin3 inside the Mini_USB-B type interface
  • the embodiment of the present invention utilizes the inherent characteristics of the three types of chargers to implement the identification of the three types of chargers. First, the method for identifying the type of the charger in the embodiment of the present invention is described:
  • a series divider resistor is connected between the power output of the powered device and the second pin of the Mini Universal USB Bus Mini_USB-A type interface;
  • the method for identifying a charger type includes:
  • the Mini_US B interface type of the power device end is A type
  • the power output end may be a VRIO (Voltage Reglator Input/Output, Input and output voltage regulator), set its output voltage to 11.
  • a resistor R1 and a diode D1 are connected in series. Since there is a pull-down resistor (set to R2) in series on the internal Pin2 of the computer, R1 is used to connect with the computer, and the voltage is connected in series with R2, so that the Mini_USB-B type interface and the sub-located charger are connected.
  • a low level state is present at the measurement point between the voltage resistors R1. Since the resistance of the pull-down resistor R2 is generally a few K, the resistance of R1 can be selected from 100 ⁇ to 150 ⁇ .
  • the diode D1 acts as a limiting reflow device and is mainly used to limit the current flow to the power output.
  • test point can also be set at the cathode end of D1; and, in particular, other types of limiting reflow devices other than diodes can also be selected, which do not affect the implementation of the embodiment of the present invention. .
  • the powered device When it is detected that there is a charger connected to the outside, the powered device first sets Pin2 and Pi n3 of the Mini_USB-A type interface to a high impedance state. Therefore, for different types of charger access, the measurement points in Figure 1 will have different states:
  • the embodiment of the present invention provides a method for identifying a type of a charger.
  • the flowchart of the method is shown in FIG. 5, and specifically includes:
  • Pinl in the USB standard can provide 5V voltage, so it can be judged whether there is an external charger by detecting whether there is a supply voltage on the Pinl of the Mini_USB-A type interface.
  • the detection result is low, it can be judged that the type of charger connected is a computer, and the charging current of the consumer can be set according to the power supply capability of the computer, for example, 500 mA.
  • the data transmitting end sends the test signal; if the data receiving end receives the test signal, it determines that the connected charger is a standard charger, otherwise it determines that the connected charger is a non-standard charger.
  • the above data transmitting end may be Pin2 or Pin3 of the Mini_USB-A type interface, and the corresponding data receiving end is the Mini_USB-A type interface Pin3 or Pin2.
  • the powered device configures Pin2 and Pin3 to send a specific test data from the data transmitting end, and then the data receiving end reads the data in the receiving register and compares it with the sent test data. If the two are the same, then It indicates that Pin2 and Pin3 of the Mini_USB-B interface are shorted together, so that it can be judged that the standard charger is connected. This can limit the charging current to the rated current of the standard charger, for example, 6 50mA; The data is different from the data sent, indicating that the Pin2 and Pin3 of the Mini_USB-B interface are not shorted together, so that it can be judged that the non-standard charger is connected, and the charging current can be limited to the rated current of the non-standard charger. , for example 300mA.
  • the identification of the above standard charger and non-standard charger can also be implemented in another way: Mini_USB- The Pin2 and Pin3 interfaces of the Type A interface are configured as GPIO functions and one of the pins is set low. Then measure the voltage of the other pin. If the measurement result is also low, it means that the two pins are shorted together externally, so that it can be judged that the standard charger is connected, otherwise it is non-standard. Charger.
  • the embodiment of the present invention further provides an apparatus for identifying a type of a charger, as shown in FIG. 6, including:
  • the resistance state setting unit 610 is configured to set the second bow pin and the third pin of the small universal serial bus Mini_USB-A type interface of the power device to be high when the charger access port is detected Resistance state
  • the voltage measuring unit 620 is configured to measure a voltage at a preset measurement point after the resistance state setting unit completes the resistance state setting; wherein, at the power output end of the power device and the Mini_USB-A type Between the second pins of the interface, a voltage dividing resistor is connected in series, and the measuring point is located between the Mini_USB-B type interface of the connected charger and the voltage dividing resistor;
  • a limiting reflow device is further connected in series for limiting current flow to the power output.
  • the identification unit 630 is configured to identify the type of the connected charger according to the measurement result of the voltage measuring unit 620.
  • the identification unit 630 includes:
  • a first identification subunit 631 if the measurement result of the voltage measurement unit 620 is a low level, identifying that the connected charger is a computer; [70] The second identification subunit 632 determines whether the second pin and the third pin of the Mini_USB-B type interface of the connected charger are short if the measurement result 620 of the voltage measuring unit is a high level. If yes, identify the connected charger as a standard charger; if not, identify the connected charger as a non-standard charger.
  • an embodiment of the present invention further provides an electrical device, including:
  • the resistance state setting unit 810 is configured to set the second bow pin and the third pin of the small universal serial bus Mini_USB-A type interface of the power device to be high when the charger access port is detected Resistance state
  • the voltage measuring unit 820 is configured to measure a voltage at a preset measurement point after the resistance state setting unit completes the resistance state setting; wherein, the power output end of the power device and the Mini_USB-A type Between the second pins of the interface, a voltage dividing resistor is connected in series, and the measuring point is located between the Mini_USB-B type interface of the connected charger and the voltage dividing resistor;
  • a limiting reflow device is further connected in series for limiting current flow to the power output.
  • the identifying unit 830 is configured to identify the type of the connected charger according to the measurement result of the voltage measuring unit 820.
  • the charging current setting unit 840 is configured to determine, according to the identification unit 830, the type of the connected charger, set the charging current of the powered device, that is, set different charging currents according to the type of the charger. That is, if it is determined by the identification unit that the type of the connected charger is a computer, the charging current of the powered device can be set according to the current supply capability of the computer, for example, 500 mA; if the identification unit can determine that the non-standard charger is accessed This pin can limit the charging current to the rated current of the non-standard charger, for example 300mA.
  • the identification unit 830 includes:
  • a first identifying subunit 831 if the measurement result of the voltage measuring unit 820 is a low level, identifying that the connected charger is a computer;
  • the second identification subunit 832 determines whether the second pin and the third pin of the Mini_USB-B type interface of the connected charger are short if the measurement result 820 of the voltage measuring unit is a high level. If yes, identify the connected charger as a standard charger; if not, identify the connected charger as a non-standard charger. [80]
  • the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.
  • the embodiments described above are merely illustrative, wherein 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, ie may be located in one Places, or they can be distributed to multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without any creative effort.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention porte sur un procédé pour identifier le type d'un chargeur et sur un dispositif pour celui-ci. Dans le procédé, une résistance de division de tension est connectée en série entre la borne de sortie d'une alimentation d'un équipement électrique et une deuxième broche d'une interface du type à bus série universelle Mini USB-A. Le procédé pour identifier le type du chargeur comprend : l'établissement de la deuxième broche et d'une troisième broche de l'interface du type Mini USB-A dans un état d'impédance élevé lors de la détection du fait que l'on accède au chargeur; l'établissement d'un point de mesure entre l'interface du type Mini USB-B du chargeur et la résistance de division de tension, et la mesure de la tension au point de mesure; une identification du type du chargeur en fonction du résultat de tension mesurée.
PCT/CN2009/074627 2008-10-28 2009-10-27 Procédé et dispositif pour identifier un type de chargeur Ceased WO2010048873A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2008101725563A CN101398459B (zh) 2008-10-28 2008-10-28 识别充电器类型的方法及装置
CN200810172556.3 2008-10-28

Publications (1)

Publication Number Publication Date
WO2010048873A1 true WO2010048873A1 (fr) 2010-05-06

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WO (1) WO2010048873A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9502079B2 (en) 2011-02-01 2016-11-22 3M Innovative Properties Company Passive interface for an electronic memory device
CN113113959A (zh) * 2020-01-09 2021-07-13 广东小天才科技有限公司 一种充电器
CN115358331A (zh) * 2022-08-25 2022-11-18 厦门紫光展锐科技有限公司 设备类型识别方法及装置、计算机可读存储介质、终端
WO2025113540A1 (fr) * 2023-11-30 2025-06-05 华为技术有限公司 Système d'alimentation électrique et dispositif de réseau

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101398459B (zh) * 2008-10-28 2011-02-09 华为终端有限公司 识别充电器类型的方法及装置
CN101667166B (zh) * 2009-09-25 2012-01-25 华为终端有限公司 设备识别方法及装置
CN101702146B (zh) * 2009-11-02 2016-01-20 北京中星微电子有限公司 区分充电器和通用串行总线数据线的方法及单元
CN102288841B (zh) * 2011-04-27 2014-04-16 株洲南车时代电气股份有限公司 一种通用测试接口的插件识别系统和方法
CN102216918B (zh) * 2011-05-30 2014-04-16 华为终端有限公司 设备标识信息的获取方法及装置
CN102231543B (zh) * 2011-06-28 2014-09-17 惠州Tcl移动通信有限公司 可识别充电器充电能力的系统
WO2011157243A2 (fr) * 2011-08-22 2011-12-22 华为终端有限公司 Terminal mobile, chargeur usb et procédé permettant à un terminal mobile d'identifier un chargeur usb
KR20130063131A (ko) * 2011-12-06 2013-06-14 삼성전자주식회사 터치 감지 파라미터 설정 방법 및 장치
US9312576B2 (en) 2012-02-15 2016-04-12 Htc Corporation Portable electronic devices capable of obtaining charging current value of charger and charging method thereof
CN102636709B (zh) * 2012-03-28 2015-07-08 广东欧珀移动通信有限公司 一种快速识别充电器类型的电路及其识别方法
CN103776484A (zh) * 2012-10-24 2014-05-07 华为技术有限公司 传感器节能方法、传感器
DE102012021638A1 (de) * 2012-11-02 2014-05-08 Audi Ag Verfahren zum Betreiben eines elektronischen Geräts, Ladevorrichtung zum Aufladen einer Batterie eines elektronischen Geräts sowie Kraftwagen
CN103135018B (zh) * 2013-01-30 2017-04-05 上海斐讯数据通信技术有限公司 多功能模拟充电测试装置
CN103138343A (zh) * 2013-02-05 2013-06-05 福兴达科技实业（深圳）有限公司 移动设备及其充电的方法
US9582054B2 (en) * 2013-06-17 2017-02-28 System General Corp. Method and apparatus for selecting the output of programmable power adapter
CN104242365B (zh) * 2013-06-19 2019-01-04 深圳富泰宏精密工业有限公司 便携式电子装置及使用方法
CN103560556A (zh) * 2013-10-30 2014-02-05 广东明创软件科技有限公司 分档选择充电电流的充电方法及其移动终端
US10114401B2 (en) * 2013-11-18 2018-10-30 Infineon Technologies Ag System and method for a serial bus interface
CN105553050B (zh) * 2016-02-26 2018-10-23 宁波萨瑞通讯有限公司 一种自适应充电方法及系统
CN106026228B (zh) * 2016-05-26 2019-02-15 维沃移动通信有限公司 一种充电usb线、适配器及移动终端
CN107147188A (zh) * 2017-06-29 2017-09-08 深圳来电科技有限公司 一种共享充电装置及共享充电装置的充电方法
CN108182160A (zh) * 2017-12-28 2018-06-19 北京守朴科技有限公司 通用接口输入信号自动识别方法、装置和信号处理设备
CN108562789A (zh) * 2018-06-13 2018-09-21 深圳市科陆精密仪器有限公司 一种钳表识别系统
CN112460892A (zh) * 2020-12-02 2021-03-09 四川虹美智能科技有限公司 冰箱的控制方法及冰箱、电子设备
CN116054304B (zh) * 2022-07-14 2023-11-21 荣耀终端有限公司 充电通路的确定方法、装置和平板电脑

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11285159A (ja) * 1998-03-26 1999-10-15 Toshiba Corp 電池パックの充電装置とその電池パックへの充電方法
US20020005707A1 (en) * 2000-05-26 2002-01-17 Kanji Kerai Battery charging
CN1632774A (zh) * 2004-04-30 2005-06-29 山东新北洋信息技术股份有限公司 Usb接口设备的识别方法
US20050174094A1 (en) * 2004-02-11 2005-08-11 Research In Motion Limited, A Canadian Corporation Battery charger for portable devices and related methods
US20050228934A1 (en) * 2003-04-23 2005-10-13 Fujitsu Limited USB upstream device, USB connector, and USB cable
CN101030189A (zh) * 2007-03-09 2007-09-05 华为技术有限公司 检测插入外设类型的方法,终端、耳机、充电器和usb接口
CN101267120A (zh) * 2007-03-15 2008-09-17 中兴通讯股份有限公司 识别供电装置的方法及其电路
CN101398459A (zh) * 2008-10-28 2009-04-01 深圳华为通信技术有限公司 识别充电器类型的方法及装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11285159A (ja) * 1998-03-26 1999-10-15 Toshiba Corp 電池パックの充電装置とその電池パックへの充電方法
US20020005707A1 (en) * 2000-05-26 2002-01-17 Kanji Kerai Battery charging
US20050228934A1 (en) * 2003-04-23 2005-10-13 Fujitsu Limited USB upstream device, USB connector, and USB cable
US20050174094A1 (en) * 2004-02-11 2005-08-11 Research In Motion Limited, A Canadian Corporation Battery charger for portable devices and related methods
CN1632774A (zh) * 2004-04-30 2005-06-29 山东新北洋信息技术股份有限公司 Usb接口设备的识别方法
CN101030189A (zh) * 2007-03-09 2007-09-05 华为技术有限公司 检测插入外设类型的方法,终端、耳机、充电器和usb接口
CN101267120A (zh) * 2007-03-15 2008-09-17 中兴通讯股份有限公司 识别供电装置的方法及其电路
CN101398459A (zh) * 2008-10-28 2009-04-01 深圳华为通信技术有限公司 识别充电器类型的方法及装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9502079B2 (en) 2011-02-01 2016-11-22 3M Innovative Properties Company Passive interface for an electronic memory device
CN113113959A (zh) * 2020-01-09 2021-07-13 广东小天才科技有限公司 一种充电器
CN115358331A (zh) * 2022-08-25 2022-11-18 厦门紫光展锐科技有限公司 设备类型识别方法及装置、计算机可读存储介质、终端
WO2025113540A1 (fr) * 2023-11-30 2025-06-05 华为技术有限公司 Système d'alimentation électrique et dispositif de réseau

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CN101398459B (zh) 2011-02-09

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