CN104065147B - A kind of charging adapter, terminal, charge control method - Google Patents
A kind of charging adapter, terminal, charge control method Download PDFInfo
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- CN104065147B CN104065147B CN201410301785.6A CN201410301785A CN104065147B CN 104065147 B CN104065147 B CN 104065147B CN 201410301785 A CN201410301785 A CN 201410301785A CN 104065147 B CN104065147 B CN 104065147B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a kind of charging adapter, terminal, charge control method, it is used to solve the problems, such as that charging current present in prior art is difficult to improve, wherein charging adapter includes：AC transformer, commutator transformer, external charging chip and microcontroller；Wherein, the output end of AC transformer is connected with commutator transformer and external charging chip respectively；Microcontroller is used for after charging adapter is effectively connected with terminal, control AC transformer provides direct current output, control commutator transformer carries out direct current transformation output, and, shaken hands after being connected in charging adapter and terminal foundation, control external charging chip to charge terminal, charging current can be increased using the charging adapter of the embodiment of the present invention, improve charge efficiency.
Description
Technical field
The present invention relates to communication technical field, in particular to a kind of charging adapter, terminal, charge control method.
Background technology
Used current mobile terminal more and charged by USB interface connection charging adapter, as shown in figure 1, charging
Principle is：After charging adapter 11 is connected with mobile terminal 12, transformer 111 in charging adapter is by the friendship of high pressure 220V
Stream electricity is converted into the direct current of 5V, is exported to mobile terminal 12, the built-in charging chip 121 of mobile terminal 12 by USB interface
The direct current to 5V carries out direct current transformation again, is finally input into battery 122 with suitable voltage and current intensity.Current mobile terminal
Power consumption is increasing, and battery capacity is also increasing, and charging heating and the slow problem that charges are very prominent.The charging modes exist with
Lower problem, charging current is difficult to improve, and is primarily due to be damaged from charging adapter output to the path of battery input
Consumption, is particularly restricted by mobile terminal charging chip conversion efficiency, it is difficult to charging current is brought up to more than 2A, even if can be
Electric current brings up to more than 2A, also increased charge loss simultaneously, can so cause even more serious charging heating problem.
The content of the invention
The present invention provides a kind of charging adapter, terminal, charge control method and device, is used to solve deposit in the prior art
Charging current be difficult to the problem for improving.
According to an aspect of the invention, there is provided a kind of charging adapter, including：AC transformer, commutator transformer,
External charging chip and microcontroller；The output end of AC transformer respectively with commutator transformer and external charging chip phase
Even；Microcontroller is used for after charging adapter is effectively connected with terminal, and control AC transformer provides direct current output, and control is straight
Convertor transformer carries out direct current transformation output, and, shaken hands after being connected in charging adapter and terminal foundation, control external charging core
Piece charges to terminal.
Further, above-mentioned charging adapter also includes：With extension direct current input pin and extension ground pin
General-purpose serial bus USB interface；The DC output end of external charging chip is connected with the extension direct current input pin of USB interface,
The extension ground pin ground connection of USB interface.
According to another aspect of the present invention, a kind of terminal is additionally provided, including：Charge protector, battery, built-in fill
Electrical chip and controller；The positive pole of battery is connected with built-in charging chip and charge protector respectively；Controller, is used for
Shaken hands after being connected in terminal and charging adapter foundation, control signal is sent to charge protector, so that charge protector
Work；Charge protector, for receiving the input electricity of the control signal from controller and charge protector
Force down when predetermined reference voltage, open the charging path charged for battery by the external charging chip in charging adapter.
Wherein, charge protector includes：Voltage comparator, logic gates and gate-controlled switch circuit；Voltage comparator
First input end be connected with the charging inlet of terminal, the second input of voltage comparator is used to receive preset reference electricity
Pressure, its output end is connected with the first input end of logic gates；Second input of logic gates and the CPU phases of terminal
Even, the output end of logic gates is connected with the control end of gate-controlled switch circuit；Remaining two ends of gate-controlled switch circuit are connected to end
Between the charging inlet and battery at end；When the input terminal voltage of charge protector is input to the first input end of voltage comparator
When, if the voltage of the first output end input of voltage comparator is less than predetermined reference voltage, the output control of logic gates
Circuit turn-on between the charging inlet and battery of terminal；Otherwise, the charging inlet of the output control terminal of logic gates with
Circuit between battery disconnects.
Further, terminal also includes the USB interface with extension direct current input pin and extension ground pin；Extension
Direct current input pin is connected with the first input end of voltage comparator, the extension ground pin ground connection of USB interface.
It is of the invention to additionally provide a kind of charge control method on the one hand, in the stream that charging adapter side performs
Journey, including：After charging adapter is effectively connected with terminal, by microprocessor control AC transformer to commutator transformer and
External charging chip exports DC voltage, and control commutator transformer exports the first charging voltage, and terminal is charged；
Charging adapter is shaken hands after being connected with terminal foundation, is based on AC transformer by the external charging chip of microprocessor control defeated
The charging voltage of direct voltage output second for going out, charges to terminal.
Wherein, charging adapter and terminal set up shake hands be connected including：Charging adapter sends handshake information to terminal, holds
Hand message includes：The distinguishing mark of charging adapter；Charging adapter receives the handshake response message for carrying out self terminal, handshake response
Message includes：Whether quick charge, input voltage and input current are supported.
Wherein, control external charging chip to be based on AC transformer output DC voltage to charge terminal, including：
After receiving handshake response information, external charging chip is opened in control, according to the external charging chip of handshake response information configuration, to
Terminal sends charging ready message；Obtain the charged state message for carrying out self terminal；Again charging ready message is sent to terminal, directly
To the charging end for obtaining terminal return.
A kind of further aspect of the invention, there is provided charge control method, in the flow that end side performs, including：
After terminal is effectively connected with charging adapter, built-in charging chip is controlled to be based on charging adapter is exported the by controller
One charging voltage charges for battery；Shaken hands after being connected in terminal and charging adapter foundation, charger is controlled by controller
Whether protection circuit opens charge tunnel, charge tunnel, for receiving the second charging voltage of charging adapter output for battery fills
Electricity.
Wherein, terminal and charging adapter set up shake hands be connected including：When holding that terminal receives that charging adapter sends
During hand message, handshake response message is fed back to charging adapter, handshake response message includes：Whether quick charge, input are supported
Voltage and input current.
The embodiment of the present invention is improved by existing charging adapter, and external charging is increased inside charging adapter
Chip, and the AC transformer of DC voltage is provided for external charging chip, the charging current to terminal can be increased, improve
Charge efficiency.
Brief description of the drawings
Fig. 1 is the charging circuit schematic diagram of charging adapter and terminal in the prior art；
Fig. 2 is the circuit theory diagrams of the charging adapter of the embodiment of the present invention；
Fig. 3 is the circuit theory diagrams of terminal provided in an embodiment of the present invention；
Fig. 4 is the circuit theory diagrams of charge protector in terminal provided in an embodiment of the present invention；
Fig. 5 is the flow that the charge control method that the present embodiment is provided is performed in charging adapter side；
Fig. 6 is the flow that the charge control method that the present embodiment is provided is performed in end side；
Fig. 7 is flow chart of the embodiment of the present invention charging adapter to the reinforcing charging stage of terminal.
Specific embodiment
Further to illustrate the present invention to reach technological means and effect that predetermined purpose is taken, below in conjunction with accompanying drawing
And preferred embodiment, the present invention is described in detail as after.
Fig. 2 is the circuit theory diagrams of the charging adapter of the embodiment of the present invention, as shown in Fig. 2 the charging adapter, bag
Include：AC transformer, commutator transformer, external charging chip (i.e. external charger) and microcontroller；Wherein, exchange becomes
The output end of depressor is connected with commutator transformer and external charging chip respectively；Microcontroller was used at charging adapter and end
After the effectively connection of end, control AC transformer provides direct current output, and control commutator transformer carries out direct current transformation output, and,
After charging adapter and terminal are set up and shake hands and be connected, terminal is charged control external charging chip, it is necessary to explanation is,
Charging chip referred to herein is charger, and it is a commutator transformer, with a High Level DC Voltage is converted to
The function of low dc voltage, it may have the function such as overvoltage protection；In order to be concise in expression, in embodiments of the invention accompanying drawing, use
" charger " expression " charging chip ".
The operation principle of the charging adapter is：Effectively it is connected with charging terminal in charging adapter and is not built with terminal
In the case of vertical connection of shaking hands, the outside alternating voltage for providing is converted into AC transformer the DC voltage of 10V or so, by straight
After the DC voltage transformation is 5V DC voltages by convertor transformer, terminal is inputed to, and held in charging adapter and terminal foundation
After hand connection, the microcontroller in charging adapter, control is opened and is arranged at its internal external charging chip, the external charging
Chip is according to being terminal charge from the DC voltage after being changed with AC transformer.
The charging adapter that the present embodiment is provided, is that adds additional one on current existing terminal charge adapter
Charge tunnel charges to terminal, based on this, it is necessary to extend the USB interface of charging adapter, can in original 5PIN
It is extra to expand or two power lines on the basis of USB interface, the interface structure of 7PIN is formed, the interface needs compatibility standard 5PIN
USB interface, two entitled EX_DC_IN of extension pin extend direct current input, and EX_GND, i.e. extension ground connection, such as
Shown in Fig. 1, the DC output end of external charging chip is connected with the extension direct current input pin of USB, USB interface extension ground pipe
Pin is grounded, as illustrated, the extension ground pin and ground pin connection of USB interface, the 5V DC output ends of commutator transformer
It is connected with the VBUS pins of USB interface.
Fig. 3 is the circuit theory diagrams of terminal provided in an embodiment of the present invention, as shown in figure 3, the terminal includes：Charge protection
Circuit, battery and built-in charging chip and controller；Wherein, the positive pole of battery respectively with built-in charging chip and charging
Protection circuit is connected；Controller, controller is used to be shaken hands after being connected in terminal and charging adapter foundation, to charge protector
Control signal is sent, so that charge protector works；Charge protector is used to receive the letter of the control from controller
Number and charge protector input terminal voltage be less than predetermined reference voltage when, open by the external charging in charging adapter
Chip is the charging path that battery charges.
Fig. 4 is the circuit theory diagrams of charge protector in terminal provided in an embodiment of the present invention.
As shown in figure 4, the charge protector can include：Voltage comparator, logic gates, gate-controlled switch circuit,
The gate-controlled switch circuit can specifically be realized using metal-oxide-semiconductor；The first input end of voltage comparator and the charging inlet of terminal
It is connected, the second input of voltage comparator is used to receive a predetermined reference voltage, its output end and the first of logic gates
Input is connected；Second input of logic gates is connected with the CPU of terminal, the output end and gate-controlled switch of logic gates
The control end of circuit is connected.
Remaining two ends of gate-controlled switch circuit are connected between the charging inlet of terminal and battery；It is defeated when charge protector
When entering terminal voltage and being input to the first input end of voltage comparator, if the voltage of the first output end input of voltage comparator is less than
Predetermined reference voltage, the then circuit turn-on between the charging inlet and battery of the output control terminal of logic gates；Otherwise, patrol
The circuit collected between the charging inlet and battery of the output control terminal of gate circuit disconnects.The voltage ratio of the charge protector compared with
Device is used to be compared charging adapter with a reference voltage by the voltage that external charging chip is provided, to judge external filling
Whether the voltage that electrical chip is provided is too high, and logic gates is used for signal and voltage comparator according to the controller in terminal
Two conditions of comparative result come determine whether control open metal-oxide-semiconductor, specifically, external charging chip is judged in voltage comparator
The voltage of offer be not above a preset value and controller to the logic gates output control signal when, control open MOS
Pipe, wherein, controller is being detected after terminal is successfully established with charging adapter and shakes hands and be connected, you can sent out with to logic gates
Go out control signal, diode plays the effect for preventing electric current reverse.
Terminal also includes the USB interface with extension direct current input pin and extension ground pin；Extension direct current input
Pin is connected with the first input end of voltage comparator, the extension ground pin ground connection of USB interface, i.e. the ground pipe of USB interface
Pin is connected with extension ground pin connection, the VBUS pin of USB interface with the input of built-in charging chip, for it provides input electricity
Source.
Fig. 5 is the flow that the charge control method that the present embodiment is provided is performed in charging adapter side, as shown in figure 5, should
Method is comprised the following steps：
Step 401：After charging adapter is effectively connected with terminal, by microprocessor control AC transformer to direct current
Transformer and external charging chip output DC voltage, and control commutator transformer export the first charging voltage, and terminal is entered
Row charges；
Step 402：Shaken hands after being connected in charging adapter and terminal foundation, by the external charging core of microprocessor control
Piece is based on the charging voltage of direct voltage output second of AC transformer output, and terminal is charged.
Wherein charging adapter is set up to shake hands to be connected and can specifically be included with terminal：Charging adapter sends to terminal and shakes hands
Message, handshake information includes：The distinguishing mark of charging adapter；Charging adapter receives the handshake response message for carrying out self terminal,
Handshake response message includes：Whether quick charge, input voltage, input current are supported.
Control external charging chip to be based on AC transformer output DC voltage to charge terminal, including：
After handshake response message is received, external charging chip is opened in control, external according to handshake response information configuration
Charging chip, charging ready message is sent to terminal；Obtain the charging status information for carrying out self terminal；Again sent to terminal and charged
Ready message, until obtaining the charging end that terminal is returned.Wherein, the charged state message of terminal is filled receiving for it
Feedback message after the charging ready message of electric configurator, the charged state message is used for the current charged state of instruction terminal,
So that charging adapter determines whether to continue as terminal charge according to the charged state message.
Fig. 6 is the flow that the charge control method that the present embodiment is provided is performed in end side, as shown in fig. 6, the method bag
Include following steps：
Step 501：After terminal is effectively connected with charging adapter, built-in charging chip is controlled to be based on filling by controller
First charging voltage of Electric adapter output charges for battery；
Step 502：Shaken hands after being connected in terminal and charging adapter foundation, charge protector is controlled by controller
Whether charge tunnel, charge tunnel, for receive second charging voltage of charging adapter output for battery charge are opened.
Wherein, terminal and charging adapter set up shake hands be connected including：When holding that terminal receives that charging adapter sends
During hand message, handshake response message is fed back to charging adapter, handshake response message includes：Whether quick charge, input are supported
Voltage and input current.
The process that charging adapter provided in an embodiment of the present invention is charged to terminal can be divided into the normal charge stage
With reinforcing charging stage two parts：
Under starting stage, after charging adapter is connected with terminal, the 5V direct current outputs of the commutator transformer of charging adapter
Acquiescence is opened, and it is connected with the VBUS pin of USB interface, and DC-DC output ends are connected with usb expansion pin EX_DC_IN.Support fast
The built-in charging chip of the mobile terminal that speed charges is closed, and the input of the built-in charging chip is connected with VBUS, output end and
Anode is connected；Usb expansion pin X_DC_IN is connected with quick charge passage, the metal-oxide-semiconductor switch acquiescence of quick charge passage
It is off, end is connected with anode.
The normal charge stage is after charging adapter is connected with terminal, the 5V direct currents of the commutator transformer of charging adapter
Output enters the VBUS ends of terminal by the VBUS ends of USB；Controller in terminal detects VUBS effectively, then open built-in filling
Electrical chip is input into anode after carrying out direct current transformation to VBUS inputs.
Fig. 7 is flow chart of the embodiment of the present invention charging adapter to the reinforcing charging stage of terminal.
Wherein, the charging flow of charging adapter side is as follows：
Step 601：Charging adapter is connected with terminal；
Step 602：Charging adapter starts charging flow, exports 5V DC voltages；
Step 603：Charging adapter sends handshake information 1 to terminal；
Step 604：If equipment connection is abnormal, closes reinforcing and charge, return to original state；
Wherein reinforcing is charged with being terminal is charged by the external charging chip in charging adapter.
Step 605：Wait the handshake information 2 for carrying out self terminal；
Step 606：Judge to shake hands to be connected and whether succeed with charging adapter, if it is, execution step 607, if
It is no, then return to step 604；
Step 607：The external charging chip of information configuration in handshake information 2, starts and charges；
Step 608：Charging ready message 3 is sent to terminal；
Step 609：Wait the charged state message 4 for carrying out self terminal；
Step 610：Judge whether terminal timely responds to, if it is return to step 608, if it is not, then return to step
604, instruct terminal to feed back charging complete message.
Wherein, the charging flow of end side includes：
Step 701：Terminal is connected with charging adapter；
Step 702：Detect VBUS effectively, then start built-in charging chip and charged；
Step 703：Wait the handshake information 1 from charging adapter side；
Step 704：If equipment connection is abnormal, charge closing passage returns to original state；
Step 705：Whether judgement shakes hands to connect succeeds, if shaking hands successful connection, step 706 is performed, if shaken hands
Connection failure, then return to step 704；
Step 706：Handshake information 2 is sent to charging adapter；
Step 707：Wait the charging ready message 3 from charging adapter side；
Step 708：Judge whether end side timely responds to charging ready message 3, if it is, step 709 is performed, if
It is no, then return to step 705.
The charging adapter of the offer of the embodiment of the present invention, by increasing external charging core in normal charge adapter
Piece, can flexibly provide normal charge function and reinforcing charge function, to increase charging current, so as to reach quick charge
Purpose.Simultaneously as increased external charging chip in charging adapter, can share due to charging what is produced in end side
Heat, will not concentrate on a side apparatus heat, even if will not also cause either side equipment mistake when super-large current charges
Degree heating.
Obviously, those skilled in the art can carry out various changes and modification without deviating from essence of the invention to the present invention
God and scope.So, if these modifications of the invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (9)
1. a kind of charging adapter, it is characterised in that including：AC transformer, commutator transformer, external charging chip and micro-
Controller；
The output end of the AC transformer is connected with the commutator transformer and external charging chip respectively；
The microcontroller is used for after the charging adapter is effectively connected with terminal, controls the direct current of the AC transformer
Output end provides direct current output, controls the commutator transformer to carry out direct current transformation output, and, the charging adapter with
After terminal sets up connection of shaking hands, exported by the DC output end for controlling the external charging chip to be based on the AC transformer
Direct voltage output charging voltage, control the external charging chip to charge the terminal.
2. charging adapter as claimed in claim 1, it is characterised in that the charging adapter also includes：It is straight with extension
The general-purpose serial bus USB interface of stream input pin and extension ground pin；
The DC output end of the external charging chip is connected with the extension direct current input pin of the USB interface, and the USB connects
The extension ground pin ground connection of mouth.
3. a kind of terminal, it is characterised in that including：Charge protector, battery, built-in charging chip and controller；
The positive pole of the battery is connected with the built-in charging chip and the charge protector respectively；
The controller, for being shaken hands after being connected in the terminal and charging adapter foundation, sends out to the charge protector
Control signal is sent, so that the charge protector works；
The charge protector, for receiving the control signal from the controller and the charge protector
Input terminal voltage be less than predetermined reference voltage when, open by the external charging chip in charging adapter be battery charge filling
Electric pathway；
Wherein, the charge protector includes：
Voltage comparator, logic gates and gate-controlled switch circuit；
The first input end of the voltage comparator is connected with the charging inlet of the terminal, and the second of the voltage comparator is defeated
Enter end and be connected with the first input end of the logic gates for receiving a predetermined reference voltage, its output end；
Second input of the logic gates is connected with the CPU of the terminal, the output end of the logic gates and institute
The control end for stating gate-controlled switch circuit is connected；
Described remaining two ends of gate-controlled switch circuit are connected between the charging inlet of the terminal and battery；
When the input terminal voltage of the charge protector is input to the first input end of the voltage comparator, if the electricity
The voltage of the first output end input of comparator is pressed to be less than predetermined reference voltage, then described in the output control of the logic gates
Circuit turn-on between the charging inlet and battery of terminal；Otherwise, terminal described in the output control of the logic gates is filled
Circuit between electrical interface and battery disconnects.
4. terminal according to claim 3, it is characterised in that the terminal also include having extension direct current input pin with
And the USB interface of extension ground pin；
The extension direct current input pin is connected with the first input end of the voltage comparator, and the extension of the USB interface connects
Ground pin ground connection.
5. a kind of charge control method, it is characterised in that in the flow that charging adapter side performs, including：
After charging adapter is effectively connected with terminal, by the DC output end of microprocessor control AC transformer to direct current
Transformer and external charging chip output DC voltage, and control commutator transformer export the first charging voltage, to the end
Charged at end；
Shaken hands after being connected in the charging adapter and terminal foundation, be based on handing over by the external charging chip of microprocessor control
The charging voltage of direct voltage output second of the DC output end output of convertor transformer, charges to the terminal.
6. method as claimed in claim 5, it is characterised in that the charging adapter is set up to shake hands and is connected bag with the terminal
Include：
The charging adapter sends handshake information to the terminal, and the handshake information includes：The knowledge of the charging adapter
Do not indicate；
The charging adapter receives the handshake response message from the terminal, and the handshake response message includes：Whether prop up
Hold quick charge, input voltage and input current.
7. method as claimed in claim 6, it is characterised in that the external charging chip of control is based on the straight of AC transformer
Stream output end output DC voltage charges to the terminal, including：
After the handshake response information is received, the external charging chip is opened in control, according to the handshake response information
The external charging chip is configured, charging ready message is sent to the terminal；
Obtain the charged state message from the terminal；
Again charging ready message is sent to the terminal, until obtaining the charging end that the terminal is returned.
8. a kind of charge control method, it is characterised in that in the flow that end side performs, including：
After terminal is effectively connected with charging adapter, built-in charging chip is controlled to be exported based on charging adapter by controller
The first charging voltage be battery charge；
Shaken hands after being connected in terminal and charging adapter foundation, control whether charge protector opens charging by controller
Passage, the charge tunnel, for receiving the second charging voltage of charging adapter output for battery charges.
9. method as claimed in claim 8, it is characterised in that the terminal set up with charging adapter shake hands be connected including：
When terminal receives the handshake information that charging adapter is sent, handshake response message is fed back to the charging adapter,
The handshake response message includes：Whether quick charge, input voltage and input current are supported.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410301785.6A CN104065147B (en) | 2014-06-27 | 2014-06-27 | A kind of charging adapter, terminal, charge control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410301785.6A CN104065147B (en) | 2014-06-27 | 2014-06-27 | A kind of charging adapter, terminal, charge control method |
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| CN104065147B true CN104065147B (en) | 2017-06-06 |
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| CN108667094B (en) * | 2014-11-11 | 2020-01-14 | Oppo广东移动通信有限公司 | Communication method, power adapter and terminal |
| MY176505A (en) * | 2014-11-11 | 2020-08-12 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Power adapter and terminal |
| EP3220506B1 (en) * | 2014-11-11 | 2020-02-19 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Communication method, power adaptor and terminal |
| DK3131171T3 (en) | 2014-11-11 | 2019-04-15 | Guangdong Oppo Mobile Telecommunications Corp Ltd | POWER ADAPTERS, TERMINAL AND CHARGING SYSTEM |
| CN104701583B (en) * | 2015-04-09 | 2017-01-25 | 福州瑞芯微电子股份有限公司 | Battery charging method based on USB interface, adapter, electric equipment and system |
| PL3142221T3 (en) | 2015-05-13 | 2019-07-31 | Guangdong Oppo Mobile Telecommunications Corp., Ltd | Quick charging method, power adapter and mobile terminal |
| AU2015397725B2 (en) | 2015-06-01 | 2018-10-04 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Charging circuit and mobile terminal |
| CN104868573A (en) * | 2015-06-02 | 2015-08-26 | 集怡嘉数码科技（深圳）有限公司 | Power adapter and quick charging switching method |
| CN105137356B (en) * | 2015-08-20 | 2019-10-11 | 小米科技有限责任公司 | Detect the method and device of charged state |
| CN105449760A (en) * | 2015-12-03 | 2016-03-30 | 惠州Tcl移动通信有限公司 | Charging method and charging adaptor for mobile terminal |
| CN105553001B (en) * | 2015-12-23 | 2019-04-30 | 深圳市万普拉斯科技有限公司 | Charging method and intelligent terminal |
| EP3429057B1 (en) * | 2016-01-05 | 2021-10-06 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Quick charging method, mobile terminal, and power adapter |
| CN107085558B (en) * | 2016-03-28 | 2020-12-04 | 曹巍 | Adapter for connecting A-type USB and C-type USB equipment |
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| CN106571663B (en) | 2016-11-03 | 2019-12-17 | 华为技术有限公司 | Charging method, terminal and charging adapter |
| CN109314396B (en) * | 2017-04-07 | 2022-07-19 | Oppo广东移动通信有限公司 | Wireless charging system, device and method and to-be-charged equipment |
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| CN104065147A (en) | 2014-09-24 |
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