CN110190650A - A kind of identifying system of charger, charger, intelligent terminal and recognition methods - Google Patents
A kind of identifying system of charger, charger, intelligent terminal and recognition methods Download PDFInfo
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- CN110190650A CN110190650A CN201910483341.1A CN201910483341A CN110190650A CN 110190650 A CN110190650 A CN 110190650A CN 201910483341 A CN201910483341 A CN 201910483341A CN 110190650 A CN110190650 A CN 110190650A
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Abstract
The present invention provides a kind of identifying system of charger, charger, intelligent terminal and recognition methods, the identifying system of the charger includes charger and intelligent terminal.Mark module is provided in the charger；It is provided with acquisition module, the information for obtaining module and being used to obtain the mark module in the intelligent terminal, and charger feature is identified according to the information.After adopting the above technical scheme, intelligent terminal can identify charger feature, to execute reasonable charging strategy according to charger feature, avoids charger overload, overheat from even burning out, ensured the safety of charging.
Description
Technical field
The present invention relates to intelligent terminal charger field more particularly to a kind of identifying systems of charger, charger, intelligence
Terminal and recognition methods.
Background technique
D+ line and D- line are shorted in charger currently, the USB charger of standard is standardized generally according to BC1.2, and not
It is connect with the other component of the charger, referring to attached drawing 1.Intelligent terminal to be charged passes through D+ line and the D- judged in charger
Line whether be shorted identify charger whether be standard USB charger.
And the standard charger of D+ line in charger, D- line short circuit cannot be supported quick charge by BC1.2 specification, do not have yet
There is identification feature, intelligent terminal cannot recognize that its fan-out capability.Therefore, when a rated output ability is less than intelligent terminal mark
Charger with charger fan-out capability connects intelligent terminal, and when charging to intelligent terminal, intelligent terminal, which can extract, to be greater than
The electric current of charger fan-out capability, so that charger be caused to overload, for a long time using charger overheat, service life reduction, very can be made
To the problems such as burning out.
Therefore, it is necessary to develop one kind to enable intelligent terminal to the fan-out capability of charger feature, such as charger, into
The charger identifying system and recognition methods of row identification.
Summary of the invention
In order to overcome the above technical defects, the purpose of the present invention is to provide one kind to enable intelligent terminal to charger spy
Sign, such as the fan-out capability of charger, come charger identifying system, charger, intelligent terminal and the recognition methods identified.
The invention discloses a kind of identifying systems of charger, including charger and intelligent terminal；
Mark module is provided in the charger；
Acquisition module is provided in the intelligent terminal, the acquisition module is used to obtain the information of the mark module,
And charger feature is identified according to the information.
Preferably, the charger feature is the type and/or fan-out capability of the charger.
Preferably, the charger is connected with the intelligent terminal by USB,
The mark module is the resistance being connected between charger D+ line and D- line；
The information of the mark module is the resistance value of the resistance, the resistance for obtaining module and being used to obtain the resistance
Value, and charger feature is identified according to the resistance value.
Preferably, the charger is connected with the intelligent terminal by USB,
The mark module be interface chip with short connect function and with the concatenated resistance of the interface chip, it is described to connect
Mouth chip and resistance are connected between charger D+ line and D- line；
The information of the mark module is the resistance value of the resistance, the resistance for obtaining module and being used to obtain the resistance
Value, and charger feature is identified according to the resistance value.
Preferably, the acquisition module includes:
It is connected to the first switch and first voltage source of first node on the D+ line or D- line, the first voltage source connects
Ground；
Accordingly it is connected to the second switch and resistance of second node on the D- line or D+ line, the resistance eutral grounding；
It is parallel to the analog-digital converter of the second switch and resistance；
The third being arranged on the first node and USB PHY line switchs；
The 4th switch on the second node and USB PHY line is set.
Preferably, the first voltage source is independent voltage source or the 0.6V voltage source of USB PHY.
Preferably, the acquisition module includes:
The 5th switch and the second voltage source, the second voltage source for being connected to third node on the D+ line or D- line connect
Ground；
Accordingly it is connected to the 6th switch and current source of fourth node on the D- line or D+ line, the current source ground connection；
It is parallel to the analog-digital converter of the 6th switch and current source；
The 7th switch on the third node and USB PHY line is set；
The 8th switch in the fourth node and USB PHY line is set.
The invention also discloses a kind of charger, mark module, the letter of the mark module are provided in the charger
It ceases associated with charger feature；
The information of the mark module is used to be obtained by the acquisition module in intelligent terminal, makes charger feature by intelligent end
End is identified according to the information.
The invention also discloses a kind of intelligent terminal, acquisition module, the acquisition module are provided in the intelligent terminal
For obtaining the information for the mark module associated with charger feature being arranged in charger, and according to the information to charging
Device feature is identified.
The invention also discloses a kind of recognition methods of charger, identify for intelligent terminal to charger, comprising:
Acquisition module in the intelligent terminal obtains the mark mould being connected between the D+ line of the charger and D- line
The resistance value of block；
And according to the corresponding relationship of preset resistance value range and charger feature, charger feature is determined.
Preferably, the acquisition module acquisition in the intelligent terminal is connected between the D+ line of the charger and D- line
The resistance value of mark module includes:
The connection for obtaining module and disconnecting the D+ line and D- line and USB PHY of intelligent terminal；
The making alive V on the D+ line of intelligent terminal；
Read the voltage V on intelligent terminal D- line0；
Resistance R known to a resistance value is connected on the D- line of intelligent terminal1；
Read the partial pressure V of resistance R11；
According to V0、R1、V1Value calculate mark module resistance value.
Preferably, the acquisition module acquisition in the intelligent terminal is connected between the D+ line of the charger and D- line
The resistance value of mark module includes:
The connection for obtaining module and disconnecting the D+ line and D- line and USB PHY of intelligent terminal；
The making alive V on the D+ line of intelligent terminal；
Read the voltage V on intelligent terminal D- line2；
Add electric current I on the D- line of intelligent terminal；
Read the voltage V on intelligent terminal D- line3；
According to V2、I、V3Value calculate mark module resistance value.
After above-mentioned technical proposal, compared with prior art, have the advantages that
1. scheme is simple, it is easy to accomplish.
2. intelligent terminal can effectively identify charger feature, and execute corresponding charging strategy according to charging feature, from
And ensure that charging safety, avoid charging overload, overheat from even burning out.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of charger in the prior art；
Fig. 2 is the structural schematic diagram of the identifying system of charger in one embodiment of the invention；
Fig. 3 is the structural schematic diagram of the charger in the identifying system of one embodiment of the invention；
Fig. 4 is the structural schematic diagram of the charger in the identifying system of another embodiment of the present invention；
Fig. 5 is the detailed construction schematic diagram of the identifying system of charger in one embodiment of the invention；
Fig. 6 is the detailed construction schematic diagram of the identifying system of charger in another embodiment of the present invention.
Specific embodiment
Below in conjunction with attached drawing, the advantages of the present invention are further explained with specific embodiment.
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
It is only to be not intended to be limiting the disclosure merely for for the purpose of describing particular embodiments in the term that the disclosure uses.
The "an" of the singular used in disclosure and the accompanying claims book, " described " and "the" are also intended to including majority
Form, unless the context clearly indicates other meaning.It is also understood that term "and/or" used herein refers to and wraps
It may be combined containing one or more associated any or all of project listed.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the disclosure
A little information should not necessarily be limited by these terms.These terms are only used to for same type of information being distinguished from each other out.For example, not departing from
In the case where disclosure range, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determination ".
In the description of the present invention, it is to be understood that, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.
In the description of the present invention, unless otherwise specified and limited, it should be noted that term " installation ", " connected ",
" connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, the connection being also possible to inside two elements can
, can also indirectly connected through an intermediary, for the ordinary skill in the art to be to be connected directly, it can basis
Concrete condition understands the concrete meaning of above-mentioned term.
In subsequent description, it is only using the suffix for indicating such as " module ", " component " or " unit " of element
Be conducive to explanation of the invention, itself there is no specific meanings.Therefore, " module " can mixedly make with " component "
With.
It is the structural schematic diagram of the identifying system of charger in one embodiment of the invention referring to attached drawing 2.The charging system
Including charger and intelligent terminal.
The charger is depressured alternating current for receiving alternating current, alternating current is converted to action of low-voltage pulse, using whole
Stream, voltage regulator circuit, become stable low-voltage DC, are supplied to intelligent terminal.
The intelligent terminal can be mobile intelligent terminal.Mobile intelligent terminal specifically includes that 1. smart phones, intelligent hand
Machine, which refers to, " as human brain, to be had independent operating system, software can be voluntarily installed by user, the third party service provider provides
Program, constantly the function of mobile phone is expanded by this class method, and wireless network can be realized by mobile network
The general name of so a kind of mobile phone of intervention ".2.PDA intelligent terminal, PDA intelligent terminal are also known as palm PC, can help me
Complete to work on the move, learn, amusement etc..Classify by using, is divided into technical grade PDA and consumer goods PDA.It is widely used in
The data acquisition of multiple industries such as shoes take, disappear fastly, express delivery, supports the wireless communications such as BT/GPRS/3G/wifi.3. plate is electric
Brain, tablet computer is a kind of small-sized, PC for being convenient for carrying, using touch screen as basic input equipment.What it possessed
Touch screen (also referred to as numerical digit plate technique) allows user to carry out operation by electronic pen rather than traditional keyboard or mouse.Institute
State intelligent terminal in some cases and may be the intelligent terminal of fixed type.
Mark module is provided in the charger；Acquisition module, the acquisition module are provided in the intelligent terminal
Charger feature is identified for obtaining the information of the mark module, and according to the information.
Charger feature mentioned here can be the type of charger, e.g. standard charger or special charging
Device.Charger feature may be the fan-out capability of charger, and the fan-out capability includes but is not limited to the maximum of charger
Export electric current, maximum output voltage etc..In some embodiments, the charger feature may be whether charger is supported
Constant current output.The feature of charger can freely be set, it is only necessary to associated with the information of mark module.In intelligent terminal
Acquisition module after getting the information of mark module, charger feature can be identified according to the information, thus
Know charger feature.In turn, intelligent terminal can charge after knowing charger feature according to charger feature reasonable arrangement
Strategy allows intelligent terminal efficiently and safely to charge.Such as intelligent terminal or the fan-out capability of charger after, Ke Yishe
Its fixed electric current extracted is slightly less than charger maximum output current, thereby may be ensured that charger can be exported efficiently and is unlikely to
Overload, has ensured the safety of charging process.
It is the structural schematic diagram of the charger in the identifying system of one embodiment of the invention referring to attached drawing 3.Charger and intelligence
Energy terminal is connected by USB (Universal Serial Bus, universal serial bus), i.e., is connected by four lines of USB, this
Four lines are respectively as follows: VBUS, D-, D+, GND, wherein D+ line (DP, Digital Positive)/D- line (DM, Digital
It Minus is) a pair of of differential signal line, for communication and data transmission；VBUS is power supply line or power bus, for powering, GND
For ground wire.Mark module is connected between D- line in charger and D+ line, the mark module is resistance RID.Mark module
Information be resistance RID resistance value.The resistance value of the resistance RID is associated with charger feature.Such as not for fan-out capability
Same charger can be set in the resistance RID that different resistance values are wherein arranged, and fan-out capability and resistance value correspond.To intelligence
Can acquisition module in terminal in getting charger after the resistance value of resistance RID, can be according to pair of resistance value and fan-out capability
It should be related to, know the fan-out capability of charger, and then intelligent terminal can arrange suitable charging according to the fan-out capability of charging
Strategy.
It is the structural schematic diagram of the charger in the identifying system of another embodiment of the present invention referring to attached drawing 4.Charger and
Intelligent terminal is by USB connection, i.e., by tetra- line connections of VBUS, D-, D+, GND of USB, in the present embodiment, in charger
D- line and D+ line between be connected with mark module, the mark module is interface chip with short connect function and connects with described
The resistance of mouth chip-in series, the interface chip and resistance are connected between charger D+ line and D- line.The interface chip is used
In being provided with the functional circuit for control switch SW opening and closing on the short circuit for realizing D- line and D+ line, interface chip, open
Close SW both ends with connect respectively with D- line and D+ line, switch SW be closed when, realization D+ line and D- line short circuit.In interface core
Resistance RID1 and resistance RID2 are respectively arranged on the connecting line of piece and D- line and D+ line.The information of the mark module is described
The sum of the resistance value of the sum of the resistance value of resistance RID1 and resistance RID2, resistance RID1 and resistance RID2 is associated with charger feature.
Acquisition module in intelligent terminal is used to obtain the sum of the resistance value of resistance RID1 and resistance RID2, is getting resistance RID1 and electricity
After hindering the sum of resistance value of RID2, its feature that charges can be known according to the corresponding relationship of itself and charger feature.In some realities
Shi Zhong, resistance RID1 and resistance RID2 can only be arranged one, and in this case, the information of mark module is the resistance
The resistance value of RID1 or resistance RID2.
It is the detailed construction schematic diagram of the identifying system of charger in one embodiment of the invention referring to attached drawing 5.The charging
The identifying system of device includes charger and intelligent terminal, and charger is connected with intelligent terminal by USB.The structure and figure of charger
Charger construction in 3 embodiments is identical, and mark module, i.e. resistance are connected between the D+ line in charger and D- line
RID3.The resistance value of resistance RID3 is associated with charger feature, and in the present embodiment, charger feature is the output electricity of charger
Stream and charger type.Specifically, for example, the constant current charger for being 1.2A for output electric current, is arranged the resistance of its resistance RID3
Value is 150 Ω；The non-constant current charger for being 2A for output electric current, the resistance value that its resistance RID3 is arranged is 200 Ω, etc..It can
With flexible setting as needed.The D+ line and D- line of charger are connect with the USB PHY in intelligent terminal.In the intelligent terminal
It is provided with acquisition module, the acquisition module includes: the first switch S1 and first for being connected to first node N1 on the D+ line
Voltage source, the first voltage source ground connection；It is accordingly connected to the second switch S2 and resistance R1 of second node N2 on the D- line,
The resistance R1 ground connection；It is parallel to the analog-digital converter (ADC) of the second switch S2 and resistance R1；It is arranged in the first segment
Third switch S3 on point N1 and USB PHY line；The 4th switch on the second node N2 and USB PHY line is set
S4.In still other embodiments, first switch S1 and first voltage source be can connect on D- line, and second switch S2, resistance R1
It is connected on D+ line with digital analog converter.
The first voltage source can be independent voltage source, be also possible to the 0.6V of USB PHY under BC1.2 charging specifications
Voltage source.The processor connection of the first switch S1, second switch S2, third switch S3, the 4th switch S4 and intelligent terminal,
It is controlled by it open or close.The connection of the processor of analog-digital converter and intelligent terminal, the processor of intelligent terminal is according to modulus
The voltage value that converter is read calculates resistance RID3 resistance value, and is other according to the corresponding relationship of resistance value and charger fan-out capability
The fan-out capability of charger out.
Specific recognition methods includes:
S1: the connection of the D+ line and D- line and USB PHY of intelligent terminal is disconnected.Open the switch of third switch S3 and the 4th
S4.At this point, first switch S1 and second switch S2 are in opening state.
S2: the making alive V on the D+ line of intelligent terminal.It is closed first switch S1, through first voltage source on D+ line
A upper plus voltage V.
S3: the voltage V on intelligent terminal D- line is read0.That is, digital analog converter reads the voltage V on D- line at this time0。
S4: resistance R1 known to a resistance value is connected on the D- line of intelligent terminal.It is closed second switch S2, makes resistance R1
It is connect with D- line.
S5: the partial pressure V1 of resistance R1 is read.That is the digital analog converter partial pressure V that reads resistance R1 at this time1。
S6: according to V0、R1、V1Value calculate mark module resistance value.It should be noted that on D+ line (D- line) access
There are also equivalent resistance Res1 (equivalent resistance Res1), equivalent resistance specifically includes PCB trace resistance, interfacial contact resistance, cable
Resistance, electronic device resistance etc..Processor calculates the resistance value of resistance RID3 according to the following formula:
RID3=R1*(V0-V1)/V1-Res1-Res2
S7: processor is after the resistance value for calculating resistance RID3, according to preset resistance value range and charger feature
Corresponding relationship, determine charger feature.Specifically, for example, the resistance value of calculated RID3 can be preset 100-175 Ω's
When in range, the output electric current of corresponding charger is 1.2A, and charger type is constant current charger；Preset calculated RID3
Resistance value in the range of 175-225 Ω when, the output electric current of corresponding charger is 2A, and charger type is non-constant-current charge
Device.It can according to need flexible setting specific corresponding to relationship.To which intelligent terminal is after getting the resistance value of RID3, so that it may
The corresponding relationship of the range and output current of charger, charger type that are belonged to according to resistance value determines the output electric current of charger
And type.And then it can be according to the output electric current and type of charger, arranged rational charging strategy, in efficient the case where charging
Lower guarantee charging safety.
It is the detailed construction schematic diagram of the identifying system of charger in another embodiment of the present invention referring to attached drawing 6.It is described to fill
The identifying system of electric appliance includes charger and intelligent terminal, and charger is connected with intelligent terminal by USB.The structure of charger with
Charger construction in Fig. 3 embodiment is identical, and mark module, i.e. resistance are connected between the D+ line in charger and D- line
RID4.The resistance value of resistance RID4 is associated with charger feature, and in the present embodiment, charger feature is the output electricity of charger
Stream and charger type.Specifically, for example, the constant current charger for being 1.2A for output electric current, is arranged the resistance of its resistance RID3
Value is 150 Ω；, the non-constant current charger for being 2A for output electric current, the resistance value that its resistance RID4 is arranged is 200 Ω, etc..It can
With flexible setting as needed.The D+ line and D- line of charger are connect with the USB PHY in intelligent terminal.In the intelligent terminal
It is provided with acquisition module, the acquisition module includes: the 5th switch S5 and second for being connected to third node N3 on the D+ line
Voltage source, the second voltage source ground connection；It is accordingly connected to the 6th switch S6 and current source of fourth node N4 on the D- line,
The current source ground connection；It is parallel to the analog-digital converter of the 6th the switch S6 and current source；It is arranged in the third node N3
With the 7th switch S7 on USB PHY line；The 8th switch S8 on the fourth node N4 and USB PHY line is set.
The second voltage source can be independent voltage source, be also possible to the 0.6V of USB PHY under BC1.2 charging specifications
Voltage source.The current source is controlled current source, is easily achieved by IC, be can be used in the case where required precision is not high
MOSFET is realized, MOSFET can be used in the case where required precision height, current negative feedback circuit is added to realize.Described 5th opens
The processor for closing S5, the 6th switch S6, the 7th switch S7, the 8th switch S8 and intelligent terminal connects, and is controlled by it opening or closes
It closes.The connection of the processor of analog-digital converter and intelligent terminal, the voltage that the processor of intelligent terminal is read according to analog-digital converter
Value calculates resistance RID4 resistance value, and according to the corresponding relationship of resistance value and charger fan-out capability, be not Chu charger output energy
Power.
Specific recognition methods includes:
S1: disconnecting the connection of the D+ line and D- line and USB PHY of intelligent terminal, i.e. the switch of the 7th switch S7 of disconnection and the 8th
S8, the 5th switch S5 and the 6th switch S6 are in the open state at this time.
S2: the making alive V on the D+ line of intelligent terminal.It is closed the 5th switch S5, through the second voltage source on D+ line
A upper plus voltage V.
S3: the voltage V on intelligent terminal D- line is read2.That is, digital analog converter reads the voltage V on D- line at this time2。
S4: add electric current I on the D- line of intelligent terminal.That is, the 6th switch S6 of closure, through the first current source on D- line
Add an electric current I.
S5: the voltage V on intelligent terminal D- line is read3.That is, digital analog converter reads the voltage V on D- line at this time3。
S6: according to V2、I、V3Value calculate mark module resistance value.It should be noted that on D+ line (D- line) access also
There is equivalent resistance Res3 (equivalent resistance Res4), equivalent resistance specifically includes PCB trace resistance, interfacial contact resistance, cable electricity
Resistance, electronic device resistance etc..Processor calculates the resistance value of resistance RID4 according to the following formula:
RID4=(V2-V3)/I-Res3-Res4
S7: processor is after the resistance value for calculating resistance RID4, according to preset resistance value range and charger feature
Corresponding relationship, determine charger feature.Specifically, for example, the resistance value of calculated RID4 can be preset 100-175 Ω's
When in range, the output electric current of corresponding charger is 1.2A, and charger type is constant current charger；Preset calculated RID3
Resistance value in the range of 175-225 Ω when, the output electric current of corresponding charger is 2A, and charger type is non-constant-current charge
Device.It can according to need flexible setting specific corresponding to relationship.To which intelligent terminal is after getting the resistance value of RID3, so that it may
The corresponding relationship of the range and output current of charger, charger type that are belonged to according to resistance value determines the output electric current of charger
And type.And then it can be according to the output current type of charger, arranged rational charging strategy, in the case where efficient charging
Ensure charging safety.
The invention also discloses a kind of charger, mark module, the letter of the mark module are provided in the charger
It ceases associated with charger feature；The information of the mark module is used to be obtained by the acquisition module in intelligent terminal, makes to charge
Device feature is identified by intelligent terminal according to the information.
Specifically, the electricity that the mark module can connect between the D- line and D+ line in charger in Fig. 3 embodiment
Resistance.The mark module may be to be connected between the D- line in Fig. 4 embodiment in charger and D+ line with short connect function
Interface chip and with the concatenated resistance of the interface chip.The information of the mark module is the resistance value of resistance.The resistance
Resistance value and charger feature correlative connection.Such as it is associated with the fan-out capability of charger and/or type, naturally it is also possible to
Other suitable charger features are associated, specifically can according to need flexible setting.The resistance value of the resistance is used for by intelligence
Acquisition module in terminal obtains, so that intelligent terminal can be according to the resistance value of resistance and contacting for charger feature, to identify
Charger feature out.The acquisition module can be arbitrary module or structure, as long as the resistance value of the available resistance is
It can.
The invention also discloses a kind of intelligent terminal, acquisition module, the acquisition module are provided in the intelligent terminal
For obtaining the information for the mark module associated with charger feature being arranged in charger, and according to the information to charging
Device feature is identified.
Specifically, the acquisition module can be with the acquisition module in Fig. 5 or Fig. 6 embodiment, for obtaining in charger
The resistance value (information of the i.e. described mark module) of the resistance connected between D- line and D+ line, the resistance value and charger of the resistance are special
Sign is associated, so that intelligent terminal can be according to resistance value and charger feature after obtaining module and getting the resistance value of resistance
Connection identifies charger feature.The mark module can be arbitrary module or structure, as long as its resistance value can be with charger
Feature is associated, and can be acquired module acquisition.
By the technical solution of the application, when intelligent terminal can be made to be connected to charger, can to charger feature into
Row identification, so as to according to charger feature arranged rational charging strategy, and then can be in the situation for ensureing charging safety
Under improve charge efficiency as much as possible.
It should be noted that the embodiment of the present invention has preferable implementation, and not the present invention is made any type of
Limitation, any one skilled in the art change or are modified to possibly also with the technology contents of the disclosure above equivalent effective
Embodiment, as long as without departing from the content of technical solution of the present invention, it is to the above embodiments according to the technical essence of the invention
Any modification or equivalent variations and modification, all of which are still within the scope of the technical scheme of the invention.
Claims (12)
1. a kind of identifying system of charger, including charger and intelligent terminal, which is characterized in that
Mark module is provided in the charger；
Acquisition module, the information for obtaining module and being used to obtain the mark module, and root are provided in the intelligent terminal
Charger feature is identified according to the information.
2. identifying system as described in claim 1, which is characterized in that
The charger feature is the type and/or fan-out capability of the charger.
3. identifying system as described in claim 1, which is characterized in that
The charger is connected with the intelligent terminal by USB,
The mark module is the resistance being connected between charger D+ line and D- line；
The information of the mark module is the resistance value of the resistance, the resistance value for obtaining module and being used to obtain the resistance, and
Charger feature is identified according to the resistance value.
4. identifying system as described in claim 1, which is characterized in that
The charger is connected with the intelligent terminal by USB,
The mark module be interface chip with short connect function and with the concatenated resistance of the interface chip, the interface core
Piece and resistance are connected between charger D+ line and D- line；
The information of the mark module is the resistance value of the resistance, the resistance value for obtaining module and being used to obtain the resistance, and
Charger feature is identified according to the resistance value.
5. identifying system as described in claim 3 or 4, which is characterized in that
The acquisition module includes:
It is connected to the first switch and first voltage source of first node on the D+ line or D- line, the first voltage source ground connection；
Accordingly it is connected to the second switch and resistance of second node on the D- line or D+ line, the resistance eutral grounding；
It is parallel to the analog-digital converter of the second switch and resistance；
The third being arranged on the first node and USB PHY line switchs；
The 4th switch on the second node and USB PHY line is set.
6. identifying system as claimed in claim 5, which is characterized in that
The first voltage source is independent voltage source or the 0.6V voltage source of USB PHY.
7. identifying system as described in claim 3 or 4, which is characterized in that
The acquisition module includes:
It is connected to the 5th switch and the second voltage source of third node on the D+ line or D- line, the second voltage source ground connection；
Accordingly it is connected to the 6th switch and current source of fourth node on the D- line or D+ line, the current source ground connection；
It is parallel to the analog-digital converter of the 6th switch and current source；
The 7th switch on the third node and USB PHY line is set；
The 8th switch in the fourth node and USB PHY line is set.
8. a kind of charger, which is characterized in that
Mark module is provided in the charger, the information of the mark module is associated with charger feature；
The information of the mark module is used to be obtained by the acquisition module in intelligent terminal, makes charger feature by intelligent terminal root
It is identified according to the information.
9. a kind of intelligent terminal, which is characterized in that
Acquisition module is provided in the intelligent terminal, the module that obtains is used to obtain the special with charger of the interior setting of charger
The information of associated mark module is levied, and charger feature is identified according to the information.
10. a kind of recognition methods of charger identifies charger for intelligent terminal characterized by comprising
Acquisition module in the intelligent terminal obtains the mark module being connected between the D+ line of the charger and D- line
Resistance value；
And according to the corresponding relationship of preset resistance value range and charger feature, charger feature is determined.
11. recognition methods as claimed in claim 10, which is characterized in that
Acquisition module in the intelligent terminal obtains the mark module being connected between the D+ line of the charger and D- line
Resistance value includes:
The connection for obtaining module and disconnecting the D+ line and D- line and USB PHY of intelligent terminal；
The making alive V on the D+ line of intelligent terminal；
Read the voltage V on intelligent terminal D- line0；
Resistance R known to a resistance value is connected on the D- line of intelligent terminal1；
Read the partial pressure V of resistance R11；
According to V0、R1、V1Value calculate mark module resistance value.
12. recognition methods as claimed in claim 10, which is characterized in that
Acquisition module in the intelligent terminal obtains the mark module being connected between the D+ line of the charger and D- line
Resistance value includes:
The connection for obtaining module and disconnecting the D+ line and D- line and USB PHY of intelligent terminal；
The making alive V on the D+ line of intelligent terminal；
Read the voltage V on intelligent terminal D- line2；
Add electric current I on the D- line of intelligent terminal；
Read the voltage V on intelligent terminal D- line3；
According to V2、I、V3Value calculate mark module resistance value.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910483341.1A CN110190650A (en) | 2019-06-04 | 2019-06-04 | A kind of identifying system of charger, charger, intelligent terminal and recognition methods |
| CN202010194576.1A CN111262304A (en) | 2019-06-04 | 2020-03-18 | Charger, intelligent terminal and identification method of charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910483341.1A CN110190650A (en) | 2019-06-04 | 2019-06-04 | A kind of identifying system of charger, charger, intelligent terminal and recognition methods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110190650A true CN110190650A (en) | 2019-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910483341.1A Pending CN110190650A (en) | 2019-06-04 | 2019-06-04 | A kind of identifying system of charger, charger, intelligent terminal and recognition methods |
| CN202010194576.1A Pending CN111262304A (en) | 2019-06-04 | 2020-03-18 | Charger, intelligent terminal and identification method of charger |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010194576.1A Pending CN111262304A (en) | 2019-06-04 | 2020-03-18 | Charger, intelligent terminal and identification method of charger |
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| Country | Link |
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| CN (2) | CN110190650A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111628551A (en) * | 2020-06-12 | 2020-09-04 | 深圳传音控股股份有限公司 | Power supply circuit, power supply system and power supply method |
-
2019
- 2019-06-04 CN CN201910483341.1A patent/CN110190650A/en active Pending
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2020
- 2020-03-18 CN CN202010194576.1A patent/CN111262304A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111628551A (en) * | 2020-06-12 | 2020-09-04 | 深圳传音控股股份有限公司 | Power supply circuit, power supply system and power supply method |
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| Publication number | Publication date |
|---|---|
| CN111262304A (en) | 2020-06-09 |
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