CN107565623A - Charger, terminal, charging system and charging method - Google Patents
Charger, terminal, charging system and charging method Download PDFInfo
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- CN107565623A CN107565623A CN201710637477.4A CN201710637477A CN107565623A CN 107565623 A CN107565623 A CN 107565623A CN 201710637477 A CN201710637477 A CN 201710637477A CN 107565623 A CN107565623 A CN 107565623A
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- terminal
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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 present invention relates to electronic technology field, discloses a kind of charger, terminal, charging system and charging method.In the present invention, charger includes：Charging circuit and microcontroller；The input of charging circuit is connected with power supply, and the control terminal of charging circuit and the control terminal of microcontroller connect；Wherein, after charger inserts terminal, the earth terminal of charger and the earth terminal of terminal connect, the access identification pin connection of the access identification pin of microcontroller and the control circuit of terminal, the large current charge indication signal that microcontroller feeds back according to the control circuit of terminal, large current charge instruction is sent to charging circuit, and controls the output end of charging circuit to be connected to the positive pole ear of the battery in terminal.Charger, terminal, charging system and the charging method that embodiment of the present invention provides, enabling avoid terminal from being generated heat the problem of serious when carrying out large current charge.
Description
Technical field
The present invention relates to car networking applied technical field, more particularly to a kind of charger, terminal, charging system and charging side
Method.
Background technology
As the intellectuality of mobile terminal and the portable terminal such as fast development, mobile phone of Mobile solution business have turned into
An essential part in people's life.In order to lift the standby time of mobile terminal, the battery capacity of mobile terminal also day
Benefit increase, for quick charge, is user-friendly, large current charge has become the standard configuration of all big enterprises.
Inventor has found that at least there are the following problems in the prior art：In order to cater to the use demand of user, current shifting
Dynamic terminal all more and more thinners, therefore the goods of furniture for display rather than for use of each electronic component becomes more and more intensive on the mainboard inside mobile terminal, at this
In the case of kind, if charged using high current, the charging chip heating inside mobile terminal can be very serious, so that whole
Individual mobile terminal heating is serious, influences Consumer's Experience.More seriously, most mobile terminals, such as mobile phone, tablet personal computer
Deng, in preparation process, all can internally chip write-in Thermal mechanism (thermal mechanism), therefore, in mobile terminal
When the mainboard constant temperature in portion rises, the central processing unit of meeting volitional check terminal, the processing frequency of image processor, and meeting
Charging current, and the speed that data are uploaded, downloaded are reduced, the performance of mobile terminal is greatly limit, is brought to user
Inconvenience.
The content of the invention
The purpose of embodiment of the present invention is to provide a kind of charger, terminal, charging system and charging method so that energy
Terminal is enough avoided to be generated heat the problem of serious when carrying out large current charge.
In order to solve the above technical problems, embodiments of the present invention provide a kind of charger, the charger includes：Charging
Circuit and microcontroller；The input of charging circuit is connected with power supply, the control terminal of charging circuit and the control of microcontroller
End connection processed；Wherein, after charger inserts terminal, the earth terminal of charger and the earth terminal of terminal connect, microcontroller
The access identification pin connection of the control circuit of access identification pin and terminal, microcontroller are used for the control circuit according to terminal
The large current charge indication signal of feedback, large current charge instruction is sent to charging circuit, and control the output end of charging circuit
Conducting is connected with the positive pole ear of the battery in terminal.
Embodiments of the present invention additionally provide a kind of terminal, and the terminal includes：Electric power management circuit, control circuit and electricity
Pond；Control circuit includes access identification pin, correction data terminal and negative data terminal；Wherein, after charger inserts terminal, eventually
The earth terminal at end and the earth terminal of charger connect, and the correction data terminal of control circuit connects with negative data terminal, control circuit
The access of access identification pin and the microcontroller in charger identify that pin is connected, the positive pole ear of battery and charger
The output end connection of charging circuit, electric power management circuit are connected with cell electrical.
Embodiments of the present invention additionally provide a kind of charging system, and it is real that the charging system includes any charger of the present invention
The terminal provided in the charger provided in mode, and any termini embodiment is provided.
Embodiments of the present invention additionally provide a kind of charging method, and the charging method includes：Terminal is inserted in charger
Afterwards, the microcontroller of charger determines signal by accessing identification pin to the control circuit transmission charging modes of terminal；Wherein,
The control circuit of terminal identifies that the low and high level of pin changes according to access, generates feedback signal, feedback signal is filled for high current
Electric indication signal or low current charge indication signal；Microcontroller receives the feedback that control circuit is replied by accessing identification pin
Signal；Microcontroller is if it is determined that feedback signal is large current charge indication signal, to the charging circuit transmission high current of charger
Charging instruction, and control the output end conducting and the connection of the positive pole ear of the battery in terminal of charging circuit；If microcontroller
It is low current charge indication signal to determine feedback signal, sends low current charge instruction to the charging circuit of charger, and control
The output end conducting and the connection of the input of the electric power management circuit in terminal of charging circuit；Wherein, electric power management circuit
The input connection of the charging circuit of output end and terminal, the output end of the charging circuit of terminal and the positive pole ear of battery connect
Connect.
Embodiment of the present invention is in terms of existing technologies, there is provided charger, by by the charging circuit in terminal
It is integrated in charger, and integrates a microcontroller simultaneously in charger, so as to electric to charging by microcontroller
Road carry out electric current output control, due to charging circuit is moved in charger from terminal so that charger output high current be
When terminal is charged, in terminal mainboard and each device will not steep temperature rise, so as to ensure that the normal of each device in terminal
Work.
Charger also includes controlling switch；The fixing end of controlling switch and the output end of charging circuit connect, controlling switch
The large current charge that is sent according to microcontroller of control terminal instruct, conducting and the connection of the positive pole ear of battery；Or control
The low current charge that the control terminal of switch is sent according to microcontroller instructs, conducting and the input of the electric power management circuit of terminal
Connection；Wherein, the low current charge signal that microcontroller feeds back according to the control circuit of terminal, generation low current charge refer to
Order.By setting controlling switch in charger, and by the output of the charging circuit in the fixing end and charger of controlling switch
End connection, so as to receive that microcontroller is sent in charging circuit charging instruction after, according to charging instruction conducting with eventually
The positive pole ear of battery or electric power management circuit directly connect in end, realize that common charging modes and large current charge mode is total to
Deposit.
The control terminal of charging circuit is connected with the control terminal of microcontroller by bidirectional two-line synchronous serial bus so that
The low and high level sequential that microcontroller can provide according to charging circuit, identify that pin passes to the control in terminal by accessing
Circuit, terminal is facilitated to be determined to need the charging current of selection according to low and high level.
Charger also includes AC to DC converter circuit；The input of AC to DC converter circuit is connected with power supply, exchange
Turn the output end of DC circuit and the input of charging circuit connects.By setting up AC to DC converter circuit in charger, from
No matter and charger can be made to be that terminal is charged under alternating current or direct current.
Terminal also includes charging circuit；The input of charging circuit and the output end of electric power management circuit connect, charging electricity
The output end on road and the positive pole ear of battery connect；Wherein, terminal, and the output of the charging circuit of charger are inserted in charger
When end is connected to the input of electric power management circuit, electric power management circuit controls the charging circuit of terminal to carry out low current for battery
Charging., can also be just when the charger that ensure that in insertion is only capable of providing low current by retaining charging circuit in terminal inner
Often charged for terminal.
Brief description of the drawings
One or more embodiments are illustrative by the picture in corresponding accompanying drawing, and these are exemplary
Illustrate not form the restriction to embodiment, the element with same reference numbers label is expressed as similar member in accompanying drawing
Part, unless there are special statement, composition does not limit the figure in accompanying drawing.
Fig. 1 is the structured flowchart of the charger of first embodiment of the invention；
Fig. 2 is the structured flowchart of the charger of second embodiment of the invention；
Fig. 3 is the structured flowchart of the terminal of third embodiment of the invention；
Fig. 4 is the structured flowchart of the terminal of four embodiment of the invention；
Fig. 5 be fifth embodiment of the invention charging system in the connection diagram of charger and terminal；
Fig. 6 be sixth embodiment of the invention charging system in the connection diagram of charger and terminal
Fig. 7 be seventh embodiment of the invention charging method in charger and terminal interact schematic diagram.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, each reality below in conjunction with accompanying drawing to the present invention
The mode of applying is explained in detail.However, it will be understood by those skilled in the art that in each embodiment of the present invention,
In order that reader more fully understands the application and proposes many ins and outs.But even if without these ins and outs and base
Many variations and modification in following embodiment, the application technical scheme claimed can also be realized.
The first embodiment of the present invention is related to a kind of charger, and concrete structure is as shown in Figure 1.
Charger 100 shown in Fig. 1 is mainly used in mobile terminal, such as mobile phone, tablet personal computer, and specifically, Fig. 1 is related to
And charger 100 mainly include charging circuit 101 and microcontroller 102.Wherein, the input of charging circuit 101 and power supply
Power supply (not shown) is connected, and the control terminal of charging circuit 101 is connected with the control terminal of microcontroller 102.
Specifically, after charger 100 inserts terminal, the earth terminal of charger 100 can be connected with the earth terminal of terminal,
So that charger 100 and terminal are grounded, ensure the safety of charging process.
In addition, in order to ensure the safety of each component and circuit in charger 100, the grounding pin and circuit of each component
Earth terminal can be connected to the earth terminal of charger 100, so as to after the earth terminal of charger 100 ground connection, reach internal device
Part and circuit are grounded, and ensure that the security of charging process.
In addition, it is necessary to explanation, microcontroller 102 can have multiple pins in actual applications, respectively realize and
The connection of each device of charger internal, and the connection with each device of terminal inner.After charger 100 inserts terminal, micro-control
Device 102 processed can be by the access identification pin connection of pin, the specially control circuit of access identification pin and terminal, so as to real
Now the data between the control circuit of terminal communicate, and are specially to send charging modes to control circuit to determine in present embodiment
Signal, feedback signal is obtained from control circuit, in actual applications, other signals can also be transmitted as needed, do not done herein
Limitation etc..
Specifically, due to being connected between microcontroller 102 and charging circuit 101, therefore microcontroller 102 connects
Enter to identify that the level of pin can change with the voltage change of charging circuit 101, identified in the access of microcontroller 102
After the access identification pin connection of the control circuit of pin and terminal, the control circuit of terminal accesses identification pin by reading
Level change, it is large current charge or low current charge that can both determine the charging modes for being currently needed for selection, so as to have
The feedback result of body feeds back to microcontroller 102.
Further, when the feedback signal that microcontroller 102 receives the control circuit feedback of terminal is large current charge
Indication signal, large current charge instruction can be generated, and the large current charge instruction of generation is sent to charging circuit 101, so as to
The output end conducting and the connection of the positive pole ear of the battery in terminal of charging circuit 101 are controlled, starts to carry out big electricity for battery
Current charge.
It should be noted that large current charge described in present embodiment specifically refers to more universal at present quick fill
Electrically, i.e., the voltage that charger provides is more than 5 volts, and the electric current in input terminal is generally at 900 milliamperes or so, even more
Greatly, different maximum input voltage and electric current can be specifically set according to the type of terminal, are not limited herein.
In addition, it is noted that the charging circuit 101 being arranged in present embodiment in charger 100 specifically can be with
For charging chip (charging IC) herein, or other have the component of charge function, are not limited, in actual applications
Suitable component can be chosen as needed forms charging circuit.
Limited it should be noted that these are only for example, not formed to technical scheme.
Compared with prior art, the charger that present embodiment provides, is filled by the way that the charging circuit in terminal is integrated to
In electrical equipment, and a microcontroller is integrated simultaneously in charger, so as to carry out electricity to charging circuit by microcontroller
The control of output is flowed, due to charging circuit is moved in charger from terminal so that charger is carried out in output high current for terminal
During charging, in terminal mainboard and each device will not steep temperature rise, so as to ensure that the normal work of each device in terminal.
Second embodiment of the present invention is related to a kind of charger.Present embodiment is done on the basis of first embodiment
Further improvement, specific improvements are：Also include controlling switch in charger, concrete structure is as shown in Figure 2.
As shown in Fig. 2 the charger 100 in present embodiment also wraps in addition to circuit and component in including Fig. 1
Include controlling switch 103.
Specifically, the fixing end of controlling switch 103 is connected with the output end of charging circuit 101, when microcontroller 102 is sent out
When being instructed for large current charge of charging circuit 101 is delivered to, the control terminal of controlling switch can be turned on the battery in terminal just
The connection of pole lug, so as to realize large current charge.
When microcontroller 102, which is sent to charging circuit 101, to be instructed for low current charge, the control terminal meeting of controlling switch
Conducting and the connection of the input of the electric power management circuit in terminal, so as to realize low current charge.
It should be noted that low current charge mode described in embodiment of the present invention specifically refers to standard charging side
The voltage that formula, i.e. charger provide is 5 volts, and the electric current in input terminal is generally at 400 milliamperes or so, and charging rate is relatively
Slowly, terminal temperature of mainboard and each device in charging process does not have too many amplitude.
In addition, the large current charge instruction that microcontroller 102 generates in embodiment of the present invention is control in the terminal
What the feedback signal of electronic feedback generated when being large current charge signal, the low current charge instruction that microcontroller 102 generates is
What the feedback signal of control circuit feedback in the terminal generated when being low current charge signal, in actual applications, can also
Set, be not limited herein as the case may be.
In addition, it is necessary to explanation, in order to ensure that height can occur for the level of the access identification pin of microcontroller 102
The change of level, the control circuit in terminal is facilitated to be judged, it is determined which kind of charging modes is selected, filling in charger 100
It can be realized between the control terminal of circuit 101 and the control terminal of microcontroller 102 by bidirectional two-line synchronous serial bus
Connection, that is, the I2C buses that those skilled in the art is usually said.
Because I2C buses can realize the connection with any component, and actually there are two connections in I2C buses
Line, i.e. serial data line (SDA) and serial time clock line (SCL), therefore after charging circuit 101 is connected with microcontroller 102,
The voltage signal of charging circuit 101 clock can change when being transferred to microcontroller 102 by SDA line according to caused by SCL lines
The conversion of low and high level is sent, so that the level of the access identification pin of microcontroller produces change, specific this area
Technical staff can be set as needed, here is omitted.
In addition, it is noted that in actual applications, AC to DC converter circuit can also be included in charger 100
104.Wherein, the input of AC to DC converter circuit 104 is connected with power supply, the output end of AC to DC converter circuit 104 with
The input connection of charging circuit 101, that is to say, that by setting up AC to DC converter circuit 104, and profit in charger 100
The connection of charging circuit 101 and power supply is realized with AC to DC converter circuit 104, no matter so that charger 100 is being handed over
Can be that terminal is charged under stream electricity or direct current.
Compared with prior art, the charger provided in present embodiment, by setting controlling switch in charger, and
The output end of charging circuit in the fixing end and charger of controlling switch is connected, it is micro- so as to be received in charging circuit
After the charging instruction that controller is sent, according to charging instruction select one conducting and terminal in battery positive pole ear or power management
Circuit directly connects, and realizes the charging of different electric currents.
Third embodiment of the present invention is related to a kind of terminal, and concrete structure is as shown in Figure 3.
Terminal 200 shown in Fig. 3 is the terminal being used cooperatively with the charger 100 provided in embodiment of the present invention, such as
Mobile phone, tablet personal computer etc., specifically, the terminal 200 that Fig. 3 is related to mainly include electric power management circuit 201, control circuit 202
With battery 203.
Wherein, control circuit 202 includes access identification pin (the ID pins in Fig. 3), correction data terminal (D+ in Fig. 3)
With negative data terminal (D- in Fig. 3), battery 203 is actual to include positive pole ear and negative lug (being not shown in figure).
Specifically, after charger inserts terminal 200, the earth terminal of terminal 200 can be connected with the earth terminal of charger,
So that terminal 200 and charger are grounded, ensure the safety of charging process.
Be worth mentioning when, in actual applications, in order to ensure the safety of each component and circuit in terminal 200, each member
The grounding pin of device and the earth terminal of circuit can be connected to the earth terminal of terminal 200, so as to be terminated in the ground connection of terminal 200
Behind ground, reach internal components and circuit is grounded, ensure that the security of charging process.
In addition, after charger inserts terminal 200, the D+ terminals of control circuit 202 connect with D- terminals, short so as to realize
Connect, ensure that charger can be the normal power supply of terminal 200.
In addition, the ID pins of control circuit 202 can be connected with the ID pins of the microcontroller in charger, so as to connect
The charging modes for receiving microcontroller transmission determine signal, and on the ID pins by reading microcontroller level change, generation
Corresponding feedback signal, such as large current charge indication signal or low current charge indication signal, so that micro- in charger
Controller can generate corresponding charging instruction according to the feedback signal of feedback so that the charging circuit in charger being capable of basis
The connection in time between conducting and the positive pole ear of battery 203 is needed, is reached for the purpose that battery 203 is charged.
In addition, it is necessary to explanation, in actual applications, electric power management circuit 201 in terminal 200 and battery 203 it
Between can be electrically connected, so as to reach control battery 203 discharge and recharge, and control battery 203 be terminal 200 in each first device
The purpose that part is powered, ensure the normal use of terminal 200.
In addition, connection can be also established between electric power management circuit 201 and control circuit 202 as needed, so as to so that
Control circuit 202 can send control command to electric power management circuit 201 so that electric power management circuit 201 can be as required
Battery 203 is accordingly controlled.
Compared with prior art, the terminal provided in present embodiment, due to removing the charging circuit of terminal inner, because
This using charger when being charged, when the control circuit being connected with the microcontroller in charger determines the charging of charger
When circuit can provide high current and be charged, charger is informed by generating corresponding feedback signal so that charger fills
The conducting of electric circuit realiration and cell positive pole ear, is charged so as to realize using high current, also, due to exporting high current
Charging circuit be to be located in charger and in nonterminal, therefore the steep temperature rise of mainboard and each device in terminal will not be caused,
It ensure that the normal work of device in terminal.
It is seen that present embodiment is the embodiment party with the matching used terminal of charger in first embodiment
Formula, the relevant technical details mentioned in first embodiment in the present embodiment still effectively, in order to reduce repetition, here not
Repeat again.
The 4th embodiment of the present invention is related to a kind of terminal.Present embodiment is done on the basis of the 3rd embodiment
Further improve, specific improvements are：Also include charging circuit in the terminal, concrete structure is as shown in Figure 4.
As shown in figure 4, the terminal 200 in present embodiment in addition to including the component and circuit shown in Fig. 3, is gone back
Including charging circuit 204.Wherein, the input of charging circuit 204 is connected with the output end of electric power management circuit 201, charging electricity
The output end on road 204 is connected with the positive pole ear of battery 203.
Specifically, terminal 200 is inserted in charger, and the output end of the charging circuit of charger is connected to power management
During the input of circuit 201, it is small that electric power management circuit 201 can control the charging circuit 204 of terminal 200 to be carried out for battery 204
Electric current charges.
It should be noted that in present embodiment, the charging circuit in terminal can be the charging core of generally use
Piece (charging IC), or the circuit (metal-oxide-semiconductor circuit) being made up of field-effect transistor.
Because the small volume of field-effect transistor, precision are high, and with industrialized generation, integrated level highland, prepare letter
It is single so that its cost substantially reduces, therefore, during the charging circuit 204 set in terminal 200, it will usually select metal-oxide-semiconductor electric
Road, but in actual applications, can according to the actual requirements be selected, be not limited herein.
No matter in addition, in present embodiment the charging circuit of charger and the battery 203 in terminal 200 positive pole ear it
Between connection, or connection between electric power management circuit 201 is realized by power supply wiring pin (VBUS pins).
In addition, it is noted that in actual implementation process, can be realized using the BBP of terminal inner
Control circuit, reach the purpose for confirming charging modes and controlling each component work in terminal 200, can also select as needed
The function that other kinds of processor realizes control circuit is selected, is not limited herein.
Compared with prior art, the terminal provided in present embodiment, by retaining the charging electricity originally in terminal
Road, the current conditions that can be exported so as to the charging circuit in charger, different feedbacks is generated by control circuit
Signal, so as to reasonably select be directly connected to cell positive pole ear, carry out large current charge, or and power management
Circuit connects, and controls the charging circuit in terminal to realize by electric power management circuit and connects direct conducting with anode, reaches
The effect of low current charge is carried out for battery.Because the charging circuit set in terminal is only just led when carrying out low current charge
It is logical, therefore the steep temperature rise of mainboard and each device in terminal will not be caused by the low current of the charging circuit in terminal, so as to
Enable the terminal to be charged under low current, ensure that the normal work of device in terminal.
It is seen that present embodiment is the embodiment party with the matching used terminal of charger in second embodiment
Formula, the relevant technical details mentioned in second embodiment in the present embodiment still effectively, in order to reduce repetition, here not
Repeat again.
The 5th embodiment of the present invention is related to a kind of charging system, and charger and the specific of terminal connect in present embodiment
Connect as shown in Figure 5.
Terminal 200 is inserted in charger 100, when being charged for terminal 200, the D+ of the control circuit 202 in terminal 200
Terminal connects with D- terminals, realizes short circuit, and the ID pins of control circuit 202 can draw with the ID of the microcontroller 102 of charger 100
Pin realizes connection, and by reading the level change of ID pins, it is determined that the charging modes carried out are needed, so as to generate feedback letter
Number, send to microcontroller 102.Microcontroller 102 generates corresponding charging instruction according to the feedback signal received, by double
Sent to two-wire system synchronous serial bus to charging circuit 101, and control charging circuit 101 directly between conducting and battery 203
Circuit, start for battery 203 carry out large current charge.
It is seen that the charger in present embodiment is the charger provided in first embodiment, present embodiment
In terminal be the terminal that provides in the 3rd embodiment, first and the 3rd the relevant technical details mentioned in embodiment at this
In embodiment still effectively, in order to reduce repetition, repeat no more here.
The 6th embodiment of the present invention is related to a kind of charging system.Present embodiment is on the basis of the 5th embodiment
Further improvement is done, specific improvements are：By setting controlling switch 102 in charger 100, it is specifically as follows hilted broadsword
Commutator, so as to which when charger 100 inserts terminal 200, microcontroller can be according to the control circuit 202 of terminal feedback
Feedback signal, generate corresponding charging instruction and send to the charging circuit 102 of charger 100, controlled therewith by charging circuit 102
The controlling switch 103 of connection turns on the connection between the input of electric power management circuit 201, or with the positive pole ear of battery 203
Between connection.In addition, in order to turn between electric power management circuit 201 in controlling switch 103 connection after, charger can
Charged normal for battery 203, charging circuit 204 is provided with also in terminal 200, and make charging circuit 204 and power management electricity
The output end on road connects with cell positive pole ear, thereby may be ensured that the low current provided by charger 100 can smoothly enter
Enter in battery 203, reach the purpose using low current charge, charger and specific connection such as Fig. 6 of terminal in present embodiment
It is shown.
It is seen that the charger in present embodiment is the charger provided in second embodiment, present embodiment
In terminal be the terminal that provides in the 4th embodiment, second and the 4th the relevant technical details mentioned in embodiment at this
In embodiment still effectively, in order to reduce repetition, repeat no more here.
The 7th embodiment of the present invention is related to a kind of charging method.The charging method being related in present embodiment, mainly
Applied to the terminal in the charger and any termini embodiment in above-mentioned any charger embodiments, charger and terminal
Interaction it is specifically as shown in Figure 7.
After charger inserts terminal, the microcontroller of charger is sent out by accessing identification pin to the control circuit of terminal
Charging modes are sent to determine signal.
The control circuit of terminal identifies the height electricity of pin according to access after receiving the charging modes and determining signal
It is flat, feedback signal is generated, microcontroller receives the feedback signal that control circuit is replied by accessing identification pin.
Specifically, after the control circuit of terminal is inserting charger by accessing the level that reads of identification pin by
High level is changed into low level, it is determined that the charger of insertion, which can be terminal, carries out large current charge, therefore the feedback signal generated
For large current charge indication signal.
When the control circuit of terminal keeps constant by accessing the level that reads of identification pin after charger is inserted, really
Surely the charger inserted, which is only capable of providing low current for terminal, to be charged, and is specifically as follows 5V voltages, therefore the feedback letter generated
Number it is low current charge indication signal.
Microcontroller generates corresponding charging instruction according to the feedback signal received, controls charging circuit to be provided for terminal
Corresponding electric current, is charged.
Specifically, microcontroller is if it is determined that feedback signal is large current charge indication signal, then to the charging of charger
Circuit sends large current charge instruction, and controls output end conducting and the company of the positive pole ear of the battery in terminal of charging circuit
Connect, charged so as to provide high current for terminal.
Microcontroller is if it is determined that feedback signal is low current charge indication signal, then the charging circuit transmission to charger is small
Electric current charging instruction, and the output end conducting and the connection of the input of the electric power management circuit in terminal of charging circuit are controlled,
So as to provide low current charge for terminal.
It is seen that present embodiment is method embodiment corresponding with the 5th or the 6th embodiment, this embodiment party
Formula can cooperate with the 5th or the 6th embodiment to be implemented.The relevant technical details mentioned in 5th or the 6th embodiment exist
In present embodiment still effectively, in order to reduce repetition, repeat no more here.
The step of various methods divide above, be intended merely to describe it is clear, can be merged into when realizing a step or
Some steps are split, are decomposed into multiple steps, as long as including identical logical relation, all protection domain in this patent
It is interior；To either adding inessential modification in algorithm in flow or introducing inessential design, but its algorithm is not changed
Core design with flow is all in the protection domain of the patent.
It will be appreciated by those skilled in the art that realize that all or part of step in above-mentioned embodiment method is to lead to
Program is crossed to instruct the hardware of correlation to complete, the program storage is in the storage medium, including some instructions are causing
One equipment (can be single-chip microcomputer, chip etc.) or processor (processor) perform each embodiment method of the application
All or part of step.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific embodiment party of the present invention
Formula, and in actual applications, can to it, various changes can be made in the form and details, without departing from the spirit and model of the present invention
Enclose.
Claims (9)
1. a kind of charger, it is characterised in that the charger includes：Charging circuit and microcontroller；
The input of the charging circuit is connected with power supply, the control terminal of the charging circuit and the control of the microcontroller
End connection processed；
Wherein, after the charger inserts terminal, the earth terminal of the charger is connected with the earth terminal of the terminal, described
The access identification pin of microcontroller is connected with the access identification pin of the control circuit of the terminal, and the microcontroller is used for
The large current charge indication signal fed back according to the control circuit of the terminal, send large current charge to the charging circuit and refer to
Order, and control the output end conducting and the connection of the positive pole ear of the battery in the terminal of the charging circuit.
2. charger according to claim 1, it is characterised in that the charger also includes controlling switch；
The fixing end of the controlling switch is connected with the output end of the charging circuit, and the control terminal of the controlling switch is according to institute
State the large current charge instruction of microcontroller transmission, conducting and the connection of the positive pole ear of the battery；
Or the low current charge that the control terminal of the controlling switch is sent according to the microcontroller instructs, conducting with it is described
The connection of the input of the electric power management circuit of terminal；Wherein, the microcontroller feeds back according to the control circuit of the terminal
Low current charge signal, generation low current charge instruction.
3. charger according to claim 1 or 2, it is characterised in that the control terminal of the charging circuit and the micro-control
The control terminal of device processed is connected by bidirectional two-line synchronous serial bus.
4. charger according to claim 1 or 2, it is characterised in that the charger also includes AC to DC converter circuit；
The input of the AC to DC converter circuit is connected with the power supply, the output end of the AC to DC converter circuit with
The input connection of the charging circuit.
A kind of 5. terminal, it is characterised in that including：Electric power management circuit, control circuit and battery；
The control circuit includes access identification pin, correction data terminal and negative data terminal；
Wherein, after charger inserts the terminal, the earth terminal of the terminal is connected with the earth terminal of the charger, described
The correction data terminal of control circuit connects with negative data terminal, in the access identification pin of the control circuit and the charger
Microcontroller access identification pin connection, the output end of the charging circuit of the positive pole ear of the battery and the charger
Connection, the electric power management circuit are connected with the cell electrical.
6. terminal according to claim 5, it is characterised in that the terminal also includes charging circuit；
The input of the charging circuit is connected with the output end of the electric power management circuit, the output end of the charging circuit with
The positive pole ear connection of the battery；
Wherein, insert the terminal in the charger, and the output end of the charging circuit of the charger be connected to it is described
During the input of electric power management circuit, it is small that the electric power management circuit controls the charging circuit of the terminal to be carried out for the battery
Electric current charges.
7. the terminal according to claim 5 or 6, it is characterised in that the control circuit is BBP.
8. a kind of charging system, it is characterised in that including the charger described in Claims 1-4 any one, and right will
Seek the terminal described in 5 to 7 any one.
9. a kind of charging method, it is characterised in that based on the charging system described in claim 8；The charging method includes：
After charger inserts terminal, the microcontroller of the charger is sent out by accessing identification pin to the control circuit of terminal
Charging modes are sent to determine signal；Wherein, the control circuit of the terminal identifies that the low and high level of pin changes according to the access,
Feedback signal is generated, the feedback signal is large current charge indication signal or low current charge indication signal；
The microcontroller receives the feedback signal that the control circuit is replied by accessing identification pin；
The microcontroller is if it is determined that the feedback signal is the large current charge indication signal, the charging to the charger
Circuit sends large current charge instruction, and controls output end conducting and the positive pole of the battery in the terminal of the charging circuit
The connection of lug；
The microcontroller is if it is determined that the feedback signal is the low current charge indication signal, the charging to the charger
Circuit sends low current charge instruction, and controls the output end of the charging circuit to turn on and the power management electricity in the terminal
The connection of the input on road；Wherein, the output end of the electric power management circuit and the input of the charging circuit of the terminal connect
Connect, the charging circuit output end of the terminal is connected with the positive pole ear of the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637477.4A CN107565623A (en) | 2017-07-31 | 2017-07-31 | Charger, terminal, charging system and charging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637477.4A CN107565623A (en) | 2017-07-31 | 2017-07-31 | Charger, terminal, charging system and charging method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107565623A true CN107565623A (en) | 2018-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710637477.4A Pending CN107565623A (en) | 2017-07-31 | 2017-07-31 | Charger, terminal, charging system and charging method |
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| Country | Link |
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| CN (1) | CN107565623A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098900A (en) * | 2015-08-05 | 2015-11-25 | 青岛海信移动通信技术股份有限公司 | Mobile terminal, direct charging power adapter and charging method |
-
2017
- 2017-07-31 CN CN201710637477.4A patent/CN107565623A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098900A (en) * | 2015-08-05 | 2015-11-25 | 青岛海信移动通信技术股份有限公司 | Mobile terminal, direct charging power adapter and charging method |
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Application publication date: 20180109 |