WO2005112220A1 - Equipement electronique portatif, tete d'extension de l'equipement, et interface de chargement du dispositif de chargement de l'equipement - Google Patents

Equipement electronique portatif, tete d'extension de l'equipement, et interface de chargement du dispositif de chargement de l'equipement Download PDF

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Publication number
WO2005112220A1
WO2005112220A1 PCT/CN2005/000687 CN2005000687W WO2005112220A1 WO 2005112220 A1 WO2005112220 A1 WO 2005112220A1 CN 2005000687 W CN2005000687 W CN 2005000687W WO 2005112220 A1 WO2005112220 A1 WO 2005112220A1
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WO
WIPO (PCT)
Prior art keywords
usb
charging
interface
usb interface
power supply
Prior art date
Application number
PCT/CN2005/000687
Other languages
English (en)
Chinese (zh)
Inventor
Pengliang Yang
Yankai Niu
Original Assignee
Huawei Technologies 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 Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2005112220A1 publication Critical patent/WO2005112220A1/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/266—Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips

Definitions

  • Portable electronic device expansion head thereof, and charging interface of charging device thereof
  • the present invention relates to an electronic device interface technology, and in particular, to a portable electronic device, and an expansion head and a charging interface of a charging device thereof.
  • the USB interface has become one of the standard data communication interfaces for electronic devices such as mobile phones, PDAs, and handheld computers.
  • the USB interface is only connected to USB transceivers.
  • a separate data communication interface can only be used for data transmission and cannot be used for charging.
  • the charging interface is only connected to the charging unit and is also a separate charging interface that can only be used for charging. The user needs to use two sets of cables for data transmission and charging of the electronic device, which are plugged into the portable electronic device and the charging interface.
  • the main object of the present invention is to provide a portable electronic device, so that the portable electronic device can perform data communication and charging functions using only a USB interface.
  • Another object of the present invention is to provide an expansion head of a portable electronic device, thereby achieving.
  • Portable electronic devices use USB cables and chargers for USB data transmission and charging.
  • Another object of the present invention is to provide a charging interface of a charging device for a portable electronic device, so that the charging device can charge the portable electronic device through a USB interface.
  • a portable electronic device includes at least a USB interface, a USB transceiver, and a charging unit.
  • the USB interface includes two data terminals, a power supply terminal, and a ground terminal.
  • the data terminal of the USB interface and the USB transceiver The data line of the device is connected, and the power supply end of the USB interface is connected to the power supply line of the USB transceiver device and the power supply line of the charging unit.
  • the portable electronic device further includes a CPU, connected to the USB transceiver and the charging unit, and configured to control the USB transceiver and the charging unit.
  • the charging unit includes a charging circuit and a charging management module.
  • the power supply terminal of the charging circuit is connected to the power supply terminal of the USB interface.
  • the level status monitoring line of the charging management module is connected to the power supply terminal of the USB interface. Connected.
  • the charging unit further includes a level generating circuit connected in series between the power supply terminal and the ground terminal of the USB interface, and is used to generate a high level at the power supply terminal of the USB interface when an external cable connector is inserted into the USB interface. When the cable connector is not inserted into the USB interface, a 4 & level is generated at the power supply end of the USB interface.
  • the charging circuit includes at least one triode, a step-down resistor, a field-effect transistor, and a rechargeable battery.
  • the grid and the rechargeable battery are connected to perform charge management control on the triode, the step-down resistor, the field effect transistor, and the rechargeable battery according to a control command of the CPU.
  • the portable electronic equipment is a mobile phone, a handheld computer, and an MP3 player.
  • the USB interface is a USB plug or a USB socket.
  • the expansion head includes an input USB interface, a charging interface, and an output USB interface.
  • the input USB interface includes two data terminals, a power supply terminal, and a ground terminal.
  • the output USB interface includes two data terminal ferrules, a power supply terminal ferrule and a ground terminal ferrule; the data input USB interface is connected to the data terminal ferrule of the output USB interface correspondingly
  • the power supply terminal of the input USB interface is connected to the power supply terminal ferrule of the output USB interface
  • the ground terminal of the input USB interface is connected to the ground terminal ferrule of the output USB interface
  • the power supply terminal of the charging interface is connected to the power supply terminal ferrule of the output USB interface.
  • the ground terminal of the charging interface is connected to the ground terminal ferrule of the output USB interface.
  • the charging interface of the expansion head is a USB plug or a USB socket.
  • the data end of the USB plug or USB socket is correspondingly connected to the data terminal of the output USB interface.
  • the power supply terminal of the USB plug or USB socket is connected to the output USB interface.
  • the power supply terminal of the USB connector is connected, and the ground terminal of the USB plug or USB socket is connected to the ground terminal of the output USB interface.
  • the input USB interface is a USB plug or a USB socket
  • the output USB interface is a USB plug or a USB socket.
  • a charging interface of a charging device for a portable electronic device includes a power supply terminal ferrule and a ground terminal ferrule.
  • the power supply terminal ferrule is connected to the power supply terminal of the charging device, and the ground terminal thereof is connected to the ground terminal of the charging device.
  • the charging interface is matched with the USB interface, and its physical shape is the same as the physical shape of the USB interface. When the charging interface and the USB interface are inserted into each other, it provides a contact between the electrical terminal ferrule and the power supply terminal of the USB interface, and the ground terminal ferrule and The ground terminal in the USB interface corresponds to the contact.
  • the charging interface is a USB plug or a USB socket.
  • the data terminal of the charging interface is empty, the power supply terminal is connected to the power supply terminal of the charging device, and the ground terminal is connected to the ground terminal of the charging device.
  • the portable electronic device Since the portable electronic device according to the present invention combines the power supply end of the USB interface with the charging list
  • the power supply terminal of the unit is connected, so as to charge the electronic device while using the USB interface for data communication; use the charging interface of the present invention to connect the charger with the USB interface of the present invention, so as to independently charge the electronic device.
  • the expansion head of the present invention one USB interface can be expanded into two USB interfaces, or one USB interface can be expanded into a USB interface and a charging interface, so as to complete the USB data communication and charging of the electronic device at the same time.
  • FIG. 1 is a circuit connection diagram of internal components of a portable electronic device according to the present invention
  • FIG. 2 is a structural diagram of a charging interface of a charging device for a portable electronic device according to the present invention
  • Structure diagram of an extension head
  • FIG. 4 is a structural diagram of a second expansion head according to the present invention. Mode of Carrying Out the Invention
  • the portable electronic device according to the present invention is a mobile phone, a handheld computer or an MP3 player. As shown in FIG. 1, the portable electronic device according to the present invention includes: a USB socket 101, a USB transceiver 102, a central processing unit (CPU) 103, and a charging unit 104.
  • a USB socket 101 As shown in FIG. 1, the portable electronic device according to the present invention includes: a USB socket 101, a USB transceiver 102, a central processing unit (CPU) 103, and a charging unit 104.
  • CPU central processing unit
  • the USB interface 101 is a physical interface connecting an electronic device and a USB cable.
  • the USB interface 101 includes two data terminals, which are a D- terminal and a D + terminal, a power supply terminal VBUS, and a ground terminal GD; USB interface 101
  • the D- and D + ends are connected to the data cables USB— D— N and USB— D_P of the USB transceiver device 102, respectively, and the power supply terminal VBUS of the USB interface 101 is connected to
  • the power supply line USB-VBUS of the USB transceiver device 102 is connected to the power supply terminal E of the charging unit 104 for supplying power to the USB transceiver device 102 and charging the charging unit 104; the ground terminal GND of the USB interface 101 is grounded.
  • the USB transceiver device 102 is used to complete the conversion and reverse conversion between logic signals and USB transmission signals. In order to save power, the USB transceiver device 102 must support the sleep mode. There are many chips on the market that implement the functions of the USB transceiver device 102. For example, Micron's chip model is MIC2551.
  • the CPU 103 is connected to the USB transceiver 102 through a logical signal interface USB-Interface, and is used to receive and send data and drive and control the USB transceiver.
  • the charging unit 104 includes: a charging management device 105, a high-power PNP transistor 106, a step-down resistor 107, an enhanced P-channel MOS field effect transistor 108, a rechargeable battery (BATT) 109, and a level generating circuit 110.
  • the rechargeable battery 109 is a lithium-ion or polymer rechargeable battery.
  • the charge management device 105 is a charge management chip. For example, Qualcomm ’s PM1000 integrated chip. Under the control of the CPU 103, the charge management device 105 cooperates with the transistor 106, the step-down resistor 107, and the MOS field effect transistor 108 to complete the charge management function. .
  • the power supply terminal of the charging unit 104 is the emitter E of the transistor 106, and the power supply terminal VBUS of the USB interface 101 is connected to the power supply terminal E of the charging unit 104.
  • the emitter E and the collector C of the transistor 106, the step-down resistor 107, the source S and the drain B of the field effect transistor 108, and the rechargeable battery are connected in series to form a charging circuit 111.
  • the transistor 106 is used to control the charging current.
  • the charge management device 105 is connected to the base B of the transistor 106 through a control signal line CHG-CTL-N, and outputs different voltages through the signal line CHG-CTL-N to obtain different charging currents flowing through the transistor 106.
  • the charging management device 105 When the signal line CHG-CTL — When the voltage of N is greater than or equal to the voltage of the power supply line VBUS on the USB interface 101, the charging management device 105 turns off the charging; when the charging current passes through the step-down resistor 107, a certain voltage will be generated on the step-down resistor 107 due to the difference in current magnitude. This voltage drop is sent to the charge management device 105 through the signal line ISNS_P and the signal line ISNS_M of the charge management device 105.
  • the charging management device 107 After being amplified by the amplifier built in the charge management device 105, and the preset maximum charge Comparing the electric current value IMAXSEL, when the charging current is greater than the maximum charging current, the charging management device 107 turns off the charging; the MOS field effect transistor 108 is used to turn off the charging, and its gate G is connected to the BATJ3 ⁇ 4T_CTL terminal of the charging management device 105.
  • the voltage of the BAT_FET_CTL terminal of the charge management device 105 is greater than or equal to the voltage VBAT of the rechargeable battery 109, the charging is turned off.
  • the VBAT terminal of the charging management module 105 is the voltage terminal of the rechargeable battery 109.
  • the power management device 105 turns off charging.
  • the level generating circuit 110 is connected in series between the power supply terminal VBUS and the ground terminal GD of the USB interface, and is used to ensure that when the cable connector is not inserted into the USB interface, a low level is generated on the power supply terminal VBUS, and when the cable connector is inserted into the USB interface A high level is generated;
  • the charging management module 105 includes a monitoring module, which is connected to the power supply terminal VBUS of the USB interface through a level status monitoring line, and is used to monitor whether the power supply terminal VBUS is low level or high level, thereby distinguishing Whether the cable connector is plugged in.
  • the portable electronic device can realize data communication and charging at the same time.
  • the computer provides a power source with a voltage of 5V and a current of 500mA to the portable device on the power supply terminal VBUS of the USB interface 101, and the USB data communication requires only a small current, so The remaining current can be used for charging. Since the voltage provided by the computer through the USB data terminal is 5V and the current is 500mA, the USB interface according to the present invention is more suitable for electronic equipment that works normally under a charging voltage of 5V and a current of 500mA.
  • the above USB interface may be a USB plug or a USB socket.
  • the present invention also discloses a charging interface for a portable electronic device charger.
  • the interface It is matched with the USB interface.
  • the charging interface 202 includes two ferrules, and the + end is a power supply ferrule,- The terminal is a ground terminal ferrule.
  • the charging interface 202 is matched with the USB interface 101. Its physical shape is the same as the physical shape of the USB interface 101. It can be inserted into the USB interface 101. After inserting the USB interface 101, The power supply terminal VBUS contacts, and the ground terminal ferrule is in contact with the ground terminal GND of the USB interface 101.
  • the charging interface 202 may also be a standard USB plug or a USB socket. Its data terminal is empty, its power supply terminal is connected to the power supply terminal of the charging device, and its ground terminal is connected to the ground terminal of the charging device.
  • the USB interface 101 can be connected to the charger 202 to implement the charging of portable electronic devices, but the portable electronic devices require the voltage range of the charger 201 to be between 4.8V and 5.4V to ensure charging The unit works safely and reliably.
  • the present invention also discloses two types of USB expansion heads.
  • the structure of the first USB expansion head is shown in FIG. 3, and the expansion head 301 It includes an input USB interface 302, a charging interface 303, and an output USB interface 304.
  • the input USB interface 302 is the same as the USB interface 101 on the portable electronic device, and its data terminals D- and D + are respectively the ferrules of the output USB interface 304.
  • D- is connected to the ferrule D +, and its power supply terminal VBUS is connected to the ferrule VBUS of the output USB interface 304.
  • the ground terminal GND is connected to the ferrule GND of the output USB interface 304; the charging interface 303 is a common charger
  • the charging terminal has a + terminal as a power supply terminal and is connected to the ferrule VBUS of the output USB interface 304, and a-terminal of the charging socket is a ground terminal and is connected to the GND of the output USB interface 304;
  • the output USB interface 304 is a common Insert the USB connector of the USB interface 101 of the electronic device. After the USB connector is inserted into the USB interface, the ferrule D-and the ferrule D + are respectively connected to the data terminal D-and the data terminal D + of the USB interface 101.
  • the ferrule VBUS is in contact with the power supply terminal VBUS of the USB interface 101
  • the ferrule GND is in contact with the ground terminal GND of the USB interface 101.
  • the above-mentioned input USB interface 302 and output USB interface 304 are USB plugs or USB sockets.
  • USB cable into one of the USB ports in the USB expansion head, plug the charging port of a common charger into the charging port in the USB expansion head, and plug the USB
  • the USB connector of the head is inserted into the USB interface of the portable electronic device, so that the electronic device can be transmitted at the same time.
  • the USB data can be transmitted and charged.
  • the structure of the second expansion head is shown in FIG. 4.
  • the expansion head 401 includes an input USB interface 402, an input USB interface 403, and an output USB interface 404.
  • the input USB interface 402 and the input USB interface 403 are connected to the portable electronic device.
  • the input USB interface 101 is the same, its data terminals D-and D + are respectively connected to the ferrule D-of the output USB interface 404 and the ferrule D +, its power supply terminal VBUS is connected to the ferrule VBUS of the output USB interface 404, and the ground terminal GND is connected to The ferrule GND of the output USB interface 404 is connected.
  • the output USB interface 404 is a USB interface that can be inserted into the input USB interface 101 of an electronic device.
  • the output USB interface is inserted into the input USB interface.
  • the ferrule D-and the ferrule D + are respectively It is in contact with the data terminal D- and the data terminal D + of the input USB interface 101
  • the ferrule VBUS is in contact with the power supply terminal VBUS of the input USB interface 101
  • the ferrule GND is in contact with the ground terminal GND of the input USB interface 101.
  • the input USB interface 402, input USB interface 403, and output USB interface 404 described above are USB sockets or USB plugs.
  • USB expansion head After the output USB interface of the USB expansion head is inserted into the USB interface of the portable electronic device, one of the input USB interfaces of the USB expansion head can realize data transmission by connecting a USB cable, and the other of the above USB expansion heads inputs USB
  • the interface can be used to charge an electronic device by connecting the charging interface of the charger.

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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)
  • Power Sources (AREA)

Abstract

La présente invention concerne un équipement électronique portatif, une tête d'extension de l'équipement, et une interface de chargement du dispositif de chargement de l'équipement. Selon l'invention, l'équipement électronique portatif comprend au moins une interface USB, un dispositif d'acceptation/distribution USB et une unité de chargement, ladite interface USB comprenant deux extrémités de données, une extrémité d'alimentation électrique et une extrémité de mise à la terre, ladite extrémité de données étant connectée aux extrémités de données du dispositif d'acceptation/distribution USB, ladite extrémité d'alimentation électrique étant connectée à l'extrémité d'alimentation électrique du dispositif d'acceptation/distribution USB et à l'extrémité d'alimentation électrique de l'unité de chargement. La tête d'extension comprend une interface USB d'entrée, une interface de chargement et une interface de sortie, l'interface de sortie étant connectée à l'interface USB et à l'interface de chargement, respectivement. L'interface de chargement peut s'enficher dans l'interface USB, et sa pointe est connectée à l'extrémité d'alimentation électrique, et la terre est connectée à la terre du dispositif de chargement. L'invention peut réaliser la fonction d'utilisation d'une interface USB pour transférer des données et les charger, et pour déduire le numéro de l'interface d'un équipement électronique portatif, réduire les frais et être plus simple d'utilisation.
PCT/CN2005/000687 2004-05-18 2005-05-18 Equipement electronique portatif, tete d'extension de l'equipement, et interface de chargement du dispositif de chargement de l'equipement WO2005112220A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNU2004200596011U CN2739695Y (zh) 2004-05-18 2004-05-18 一种便携式电子设备及其充电装置的充电接口和扩展头
CN200420059601.1 2004-05-18

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Publication Number Publication Date
WO2005112220A1 true WO2005112220A1 (fr) 2005-11-24

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WO (1) WO2005112220A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8898363B2 (en) 2006-12-08 2014-11-25 Nokia Corporation Multiple connections to a single serial interface
CN111512516A (zh) * 2018-09-28 2020-08-07 查奇塔布有限公司 用于便携式电子设备的便携式充电装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106253371A (zh) * 2016-07-29 2016-12-21 北京小鸟看看科技有限公司 一种头戴显示供电系统
CN106253372B (zh) * 2016-07-29 2019-07-19 北京小鸟看看科技有限公司 一种供电设备
JP6905134B1 (ja) * 2020-09-07 2021-07-21 日本たばこ産業株式会社 エアロゾル生成装置の電源ユニット
CN115224777A (zh) * 2022-08-30 2022-10-21 环胜电子(深圳)有限公司 充电装置

Citations (3)

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Publication number Priority date Publication date Assignee Title
EP1198049A1 (fr) * 2000-10-12 2002-04-17 Sony International (Europe) GmbH Circuit de charge pour le chargement d'une unité mobile utilisant un interface BSU
CN2487144Y (zh) * 2000-08-19 2002-04-17 艾泰克瑟鲁申株式会社 使用通用串行总线的携带型通讯设备用电池充电装置
CN1350355A (zh) * 2000-10-23 2002-05-22 明碁电通股份有限公司 通用序列汇流排式自动充电装置及其操作方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2487144Y (zh) * 2000-08-19 2002-04-17 艾泰克瑟鲁申株式会社 使用通用串行总线的携带型通讯设备用电池充电装置
EP1198049A1 (fr) * 2000-10-12 2002-04-17 Sony International (Europe) GmbH Circuit de charge pour le chargement d'une unité mobile utilisant un interface BSU
CN1350355A (zh) * 2000-10-23 2002-05-22 明碁电通股份有限公司 通用序列汇流排式自动充电装置及其操作方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8898363B2 (en) 2006-12-08 2014-11-25 Nokia Corporation Multiple connections to a single serial interface
CN111512516A (zh) * 2018-09-28 2020-08-07 查奇塔布有限公司 用于便携式电子设备的便携式充电装置

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