TW201214917A - Adapter, electrical device and charging method thereof - Google Patents

Adapter, electrical device and charging method thereof Download PDF

Info

Publication number
TW201214917A
TW201214917A TW99131722A TW99131722A TW201214917A TW 201214917 A TW201214917 A TW 201214917A TW 99131722 A TW99131722 A TW 99131722A TW 99131722 A TW99131722 A TW 99131722A TW 201214917 A TW201214917 A TW 201214917A
Authority
TW
Taiwan
Prior art keywords
pin
electronic
charging
voltage
adapter
Prior art date
Application number
TW99131722A
Other languages
Chinese (zh)
Inventor
Chuan-Seng Lin
Original Assignee
Qisda Corp
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 Qisda Corp filed Critical Qisda Corp
Priority to TW99131722A priority Critical patent/TW201214917A/en
Publication of TW201214917A publication Critical patent/TW201214917A/en

Links

Abstract

An electrical device includes a USB interface unit, a temporarily storing unit and a control unit. The USB interface unit includes a D+ pin and a D- pin. The temporarily storing unit is electronically connected to the USB interface unit. The control unit is for controlling the temporarily storing unit to transmit a high-level voltage to the D+ pin and for reading voltage levels of the D+ pin and the D- pin after a specific time period. When the voltage levels of the D+ pin and the D- pin read by the temporarily storing unit are both high-level voltages, the control unit controls the electrical device to switch to an adapter-charging mode.

Description

201214917 'TW6438PA' VI. Description of the Invention: [Technical Field] The present invention relates to an adapter, an electronic device and a charging method thereof, and more particularly to a highly convenient adapter and electronic device And its charging method. [Prior Art] Modern handheld electronic devices, such as mobile phones, digital cameras, notebooks, computers, or e-books, have not provided traditional charging jacks, and instead use the USB interface of the handheld electronic device through conventional USB. Wiring is done while charging with a personal computer (PC). However, if the USB side of the personal computer is used as the charging source, the charging speed of the handheld electronic device becomes slow due to the small current at the USB terminal (the charging current is about 500 to 750 mA at most). Therefore, some of the handheld electronic devices provide an adapter with a USB interface and a special USB cable for charging, and can be charged by a conventional power socket (a charging current of about 1 to 2 A). Lu Yi refers to FIG. 1A and FIG. 1B, which illustrate a schematic diagram of a conventional handheld electronic device charging method. In FIG. 1A, the handheld electronic device 1 is connected to the personal computer 30 via a conventional USB cable 20, wherein the fourth terminal (recognition pin, pin) of the USB cable 20 at the handheld electronic device 1 is floated. By floating, the handheld electronic device 10 can recognize that the connected person is the personal computer 30' and can simultaneously transmit and charge data (the charging current is about 500 to 750 mA at most). In Fig. 1B, the handheld electronic device 4 is connected to the adapter 50 via a special USB cable 55 for charging. The USB cable 55 is electrically connected to the fourth pin (identification pin, ID pin) and the fifth pin (foot pin, GND pin) at the handheld electronic device 201214917 TW6438PA ' ', so the handheld electronic The device 10 can recognize that the connected person is a power outlet (not shown), and can use a conventional power socket for faster charging (charging current is about I 2A). However, the above method requires the use of two different wires (general USB wiring and USB cable for charging) depending on the situation, which not only increases the manufacturing cost of the electronic device, but also causes the user to misuse or not carry/storage. SUMMARY OF THE INVENTION The present invention relates to an adapter, an electronic device, and a charging method thereof. The special adapter enables the electronic device to automatically switch the charging mode, thereby improving the convenience of use. According to a first aspect of the present invention, an electronic device is provided, comprising a USB interface unit, a temporary storage unit and a control unit. The USB interface unit has a D+ pin and a D- pin. The temporary storage unit is electrically connected to the USB interface unit. The control unit is configured to control the temporary storage unit to transmit a high level voltage to the D+ pin and read the voltage levels of the D+ pin and the D- pin after a certain period of time. Wherein, when the voltage levels of the D+ pin and the D-pin read by the temporary storage unit are both high level voltages, the control unit controls the electronic device to switch to an adapter charging mode. According to a second aspect of the present invention, an adapter is provided comprising a USB interface unit and a charging unit. The USB interface unit has a D+ pin and a D-pin, and the D+ pin and the D- pin are short-circuited. The charging unit is coupled to the USB interface unit for providing a 201214917 . TW6438PA ' charging power supply in an adapter charging mode. According to a third aspect of the present invention, there is provided a charging method of an electronic device comprising the following steps. The electronic device outputs a high level voltage to a D+ pin of a USB transmission line. The electronic device reads the voltage level of the D+ pin and a D-pin of the USB transmission line after a certain period of time. When the voltage levels of the D+ pin and the D- pin read by the electronic device are both high level voltages, the electronic device switches to an adapter charging mode. In order to better understand the above and other aspects of the present invention, the following description of the preferred embodiments and the accompanying drawings will be described in detail as follows: [Embodiment] The present invention provides an adapter, an electronic device, and The charging method enables the electronic device to automatically switch the charging mode without changing the wire by using a special adapter, thereby improving the portability and convenience of the user. Referring to FIG. 2, a schematic diagram of an electronic device in an adapter charging mode in accordance with a preferred embodiment of the present invention is shown. In Fig. 2, the electronic φ device 100 includes a USB interface unit 110, a temporary storage unit 120, and a control unit 130. The USB interface unit 110 includes a VCC pin, a D+ pin, a D- pin, and a GND pin. The temporary storage unit 120 is electrically connected to the USB interface unit 110.

In addition, the adapter 300 includes a USB interface unit 310 and a charging unit 320. The USB interface unit 310 includes a VCC pin, a D+ pin, a D- pin, and a GND pin. The USB interface unit 310 is different from the USB interface unit 110 in that the D+ pin and the D- pin of the USB interface unit 310 are short-circuited. The charging unit 320 is coupled to the USB 201214917

TW6438PA interface unit 3H). The electronic device (10) and the adapter are connected by a conventional brain wire 2〇0, that is, the adapter 300 can be separated. % In (4) Wiring 200 Connect the electronic device 1〇〇 and the adapter · Control 単 will control the temporary storage to 12G transmission - high level voltage to ^JSB two sides early το 110 D+ pin and read after a certain period of time ^) Take the IH pin and D- pin of the leg interface unit 1H). The temporary storage unit SU0 may include a service clock setting ^ (UCLKC0Nregis (4) and - system status register (4) uL person) clock reference register can be used to transmit high level voltage to == yuan, D+ pin, system state temporary storage The device can be used to read the voltage level of the D+ pin and the pin of the pin 7110, but it is not limited, depending on the design. The connection is shorted by the D+ pin and the D_ pin of the interface f310. At this time, the charging 1 _ pin receiving 〒 level voltage will be transmitted back via the d_ pin. power supply. _, temporary storage Μ 12〇^ Μ to provide a charging D + ^ ^ Save as early as 120 items to get the USB interface unit 110 yuan 13 〇 t pin voltage level is high level voltage, control single is electricity The connection line and the adapter are connected to switch to cry... Therefore, the control electronic device 100 switches to charging. S ^ type and pay for the use of the traditional power outlet for fast devices (four) this (four) touch the electronic unit set 100 1 # charging 之 diagram. In Fig. 3, the electronic device and the human computer 400 are connected by a regular coffee connection 2 201214917 TW6438PA ‘ The personal computer 400 includes a USB interface unit 410. When the USB cable 200 is connected to the electronic device 100 and the personal computer 400, the control unit 130 controls the temporary storage unit 120 to transmit the high level voltage to the D+ pin of the USB interface unit 110 and read after a certain period of time (for example, after 1 lms). The voltage level of the D+ pin and the D- pin of the USB interface unit 110. Since the D+ pin and the D- pin of the USB interface unit 410 are separated from each other, the D+ pin receiving the high level voltage is not returned by the D-pin, but is regarded as transient noise and ignored. At the same time, the voltage level of the D+ pin of the USB interface unit 110 read by the temporary storage unit 120 is a high level voltage, and the voltage level of the voltage level of the D-pin is a low level voltage, that is, a D+ pin. And the voltage level of the D-pin is not a high level voltage. Therefore, the control unit 130 recognizes that the person connected via the U S B connection line 200 is the personal computer 400, so the control electronic device 100 switches to the USB charging mode for charging. At the same time, the electronic device 100 can simultaneously perform data transmission in the USB charging mode. In addition, the charging current of the electronic device 100 in the adapter charging mode is greater than the charging current in the USB charging mode. • Referring to FIG. 4, a flow chart of a method of charging an electronic device in accordance with a preferred embodiment of the present invention is shown. In step S500, the electronic device outputs a high level voltage to a D+ pin of a USB transmission line. In step S510, the electronic device reads the voltage level of the D+ pin of the USB transmission line and a D-pin after a certain period of time. In step S520, the electronic device determines whether the read voltage levels of the D+ pin and the D- pin are both high level voltages. If the voltage levels of the D+ pin and the D- pin are both high level voltages, then in step S530, the electronic device switches to an adapter charging mode. If the voltage levels of the D+ pin and the D- pin are not high level voltages,

* I 201214917

TW6438PA is then in step S540, the electronic device switches to a USB charging mode. The charging current of the electronic device in the adapter charging mode is greater than the charging current in the usb charging mode. The principle of the charging method of the above electronic device has been described in detail in Figs. 2 and 3, and therefore will not be repeated here. The adapter, the electronic device and the charging method thereof disclosed in the above embodiments of the present invention have a plurality of advantages, and only some of the advantages described below are as follows: The adapter, the electronic device and the charging side thereof of the present invention are The special adapter allows the electronic device to automatically switch the charging mode by judging the electric I level of the D+ pin and the D_ pin, so that the wire can be replaced without saving the wire. Portability and convenience. In conclusion, the present invention has been disclosed above in a preferred embodiment, and is not intended to limit the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS - Figures 1A and 1B show schematic diagrams of a conventional handheld electronic device charging method. 2 is a schematic diagram of an electronic device in an adapter charging mode in accordance with a preferred embodiment of the present invention. Figure 3 is a diagram showing the electronic device in a USB charging mode not according to a preferred embodiment of the present invention. FIG. 4 is a diagram showing the charging of an electronic device according to a preferred embodiment of the present invention. 201214917

, TW6438PA J flow chart of the electric method. [Main component symbol description] 10, 40: Handheld electronic device 20: USB cable 30, 400: Personal computer 50: Adapter 55, 200: USB cable φ 100: Electronic device 110, 310, 410: USB interface unit 120: The temporary storage unit 130: the control unit 300: the adapter 320: the charging unit

Claims (1)

  1. 201214917 TW6438PA VII, Shenyi patent scope: I An electronic device, including · USB; the kneading unit ' has - D + pin and a d-pin; a temporary storage, electrically connected to the USB interface unit; And a control unit for controlling the temporary storage unit to transmit a high level voltage until the voltage level of the foot is read after the specific period of time; wherein, when the temporary storage unit reads The D+ pin and the D-contact voltage level are both the high level voltage, and the control unit (4) switches the electronic device to an adapter charging mode. 6 2. If the electronic device described in item 1 of the patent application scope is set, when the temporary storage: the read voltage of the D+ pin and the voltage level of the pin _ pin are not the level level voltage, The control unit is controlled by the charging mode of the electronic device. κ 3_如巾 The electronic device described in the second paragraph of the patent range, the charging current in the charging mode of the adapter is cut in: charging current in the USB charging mode. 4. For the electronic device described in claim 2, the electronic device transmits data in the USB charging mode. -v 5. - Type of adapter, including: D+, still 6" face, with a D+ pin and a pin, the pin and the far D- pin are short-circuited; and a charging unit, The USB interface unit is coupled to provide a charging power supply in a connector charging mode. 6. The adapter of claim 5, wherein the 201214917 TW6438PA * D+ pin receives a high level The voltage, _D_ pin transmits the high level voltage, and the charging unit enters the adapter charging mode. 7. A charging method for an electronic device, comprising: 忒 an electronic device outputs a high level voltage to a D+ of a USB transmission line a pin; the 5H electronic device reads the voltage level of the USB transmission D+ pin and the D. pin after a certain period of time; and the D+ pin and the D-connection read by the Tianhe electronic device The voltage of the foot: the standard is 4 level voltage, the electronic device is switched to the adapter charging mode. 8. The charging method of the electronic device as described in claim 7 includes: 冨X黾The D+ pin and the voltage of the d_ pin are captured by the sub-clothing Are the quasi-high level voltage, the electronic device is switched to a mode.
    9. The charging device of the electronic device of claim 7, wherein the charging current of the electronic device in the adapter charging mode is greater than the charging current in the USB charging mode. 1. The charging core of the electronic device of claim 7, wherein the D+ pin and the d_pin are read by the electronic device are the high material voltage, the Cong transmission (10) Electrically connecting the two adapters. The adapter short-circuits the d+ pin and the _ pin of the USB transmission line and provides a charging power source.
TW99131722A 2010-09-17 2010-09-17 Adapter, electrical device and charging method thereof TW201214917A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW99131722A TW201214917A (en) 2010-09-17 2010-09-17 Adapter, electrical device and charging method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW99131722A TW201214917A (en) 2010-09-17 2010-09-17 Adapter, electrical device and charging method thereof

Publications (1)

Publication Number Publication Date
TW201214917A true TW201214917A (en) 2012-04-01

Family

ID=46786606

Family Applications (1)

Application Number Title Priority Date Filing Date
TW99131722A TW201214917A (en) 2010-09-17 2010-09-17 Adapter, electrical device and charging method thereof

Country Status (1)

Country Link
TW (1) TW201214917A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103762690A (en) * 2014-01-28 2014-04-30 广东欧珀移动通信有限公司 Charging system
WO2015113472A1 (en) * 2014-01-28 2015-08-06 天地融科技股份有限公司 Method and device for detecting interface access mode of smart key device
CN106649172A (en) * 2016-09-30 2017-05-10 宇龙计算机通信科技(深圳)有限公司 Data storage method and device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103762690A (en) * 2014-01-28 2014-04-30 广东欧珀移动通信有限公司 Charging system
WO2015113472A1 (en) * 2014-01-28 2015-08-06 天地融科技股份有限公司 Method and device for detecting interface access mode of smart key device
CN103762690B (en) * 2014-01-28 2016-08-24 广东欧珀移动通信有限公司 Charging system
US9859742B2 (en) 2014-01-28 2018-01-02 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Charging system
US10153652B2 (en) 2014-01-28 2018-12-11 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Charging system
US10224734B2 (en) 2014-01-28 2019-03-05 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Charging system
CN106649172A (en) * 2016-09-30 2017-05-10 宇龙计算机通信科技(深圳)有限公司 Data storage method and device
CN106649172B (en) * 2016-09-30 2019-10-11 宇龙计算机通信科技(深圳)有限公司 A kind of date storage method and device

Similar Documents

Publication Publication Date Title
US10374450B2 (en) Battery charging method and electronic device
TWI523370B (en) Apparatus and method for providing power through a reverse local data transfer connection
US9129065B2 (en) USB device and control method thereof
RU2587159C2 (en) Mobile terminal and interface connection method therefor
US8756358B2 (en) Method and device for identifying universal serial bus (USB) insertion or charger insertion of mobile terminal
US20140125312A1 (en) Methods, systems and apparatus for determining whether an accessory includes particular circuitry
JP6359459B2 (en) Mobile terminal and charging device and method thereof
EP2545631B1 (en) External power source voltage drop compensation for portable devices
US9411369B2 (en) Power distribution in a docking station
CN102055223B (en) USB special charger recognition circuit
CN105703426B (en) Charging port detects control method and charging port detects control device
US9483093B2 (en) Electronic device and method for controlling a setting of a maximum consumption current
EP3086433A1 (en) Charging method, alternating current adaptor, charging management device and terminal
US9287702B2 (en) Universal power interface
CN106716389B (en) Method for fast USB charging, electronic device and charger device
CN104756352B (en) High voltage special charging port
KR101494900B1 (en) Mobile phone and method for charging through discernment charging cable
JP5283719B2 (en) Electronic equipment and electronic equipment system
US8217639B2 (en) System for supplying and receiving power, power supply device and method thereof
EP2985856A1 (en) Usb charging system with variable charging voltage, charger, and intelligent terminal
US8937460B2 (en) Dual-interface card reader module
US9153999B2 (en) Circuits and methods for automatic power source detection
US9859742B2 (en) Charging system
TWI609543B (en) Hub
CN105789991A (en) Hub having complex power converters