CN107579551A - Terminal, charger, charging system and charging method - Google Patents
Terminal, charger, charging system and charging method Download PDFInfo
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- CN107579551A CN107579551A CN201710637478.9A CN201710637478A CN107579551A CN 107579551 A CN107579551 A CN 107579551A CN 201710637478 A CN201710637478 A CN 201710637478A CN 107579551 A CN107579551 A CN 107579551A
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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
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Abstract
The present invention relates to electronic technology field, discloses a kind of terminal, charger, charging system and charging method.In the present invention, terminal includes：Electric power management circuit and control circuit and battery with electric power management circuit electrical connection；Control circuit includes access identification pin, data terminal and synchronous serial interface；Wherein, after charger inserts terminal, the earth terminal of terminal and the earth terminal of charger connect, the access identification pin connection of the access identification pin and charger of control circuit, the output end of the positive pole ear of battery and the charging circuit of charger connects, the control terminal of the synchronous serial interface of control circuit and the charging circuit of charger is connected, and the correction data terminal in data terminal is connected with the negative data terminal in data terminal.Terminal, charger, 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 terminal, charger, 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.
But during the present invention is realized, inventor has found there are problems that in the prior art：In order to cater to use
The use demand at family, current mobile terminal all more and more thinners, therefore on the mainboard inside mobile terminal each electronic component pendulum
Part becomes more and more intensive, in this case, if charged using high current, the charging chip hair inside mobile terminal
Heat can be very serious, so that whole mobile terminal heating is serious, influences Consumer's Experience.More seriously, the overwhelming majority is moved
Dynamic terminal, such as mobile phone, tablet personal computer, in preparation process, all internally it can write Thermal mechanism (thermal by chip
Mechanism), therefore, when the mainboard constant temperature inside mobile terminal rises, central processing unit, the image of meeting volitional check terminal
The processing frequency of processor, and charging current can be reduced, and the speed that data are uploaded, downloaded, it greatly limit mobile whole
The performance at end, inconvenience is brought to user.
The content of the invention
The purpose of embodiment of the present invention is to provide a kind of terminal, charger, charging system and charging method so that
Terminal can be 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 terminal, the terminal includes：Power management
Circuit and control circuit and battery with electric power management circuit electrical connection；Control circuit includes access identification pin, data
Terminal and synchronous serial interface；Wherein, after charger inserts terminal, the earth terminal of terminal and the earth terminal of charger connect,
The access identification pin connection of the access identification pin and charger of control circuit, the charging of the positive pole ear and charger of battery
The control terminal of the output end connection of circuit, the synchronous serial interface of control circuit and the charging circuit of charger connects, data terminal
Correction data terminal in son is connected with the negative data terminal in data terminal.
Embodiments of the present invention additionally provide a kind of charger, and the charger includes access identification pin and earth terminal,
Charging circuit is additionally provided with the charger, the charging circuit of charger includes input, output end and control terminal；Charger fills
The input of circuit is used to be connected with power supply；The earth terminal of charger is used to be connected with the earth terminal of terminal；Charger
Access identification pin and terminal control circuit access identification pin connection；Wherein, after charger inserts terminal, charging
The positive pole ear of the output end of the charging circuit of device and the battery of terminal connects, the control terminal and terminal of the charging circuit of charger
Control circuit synchronous serial interface connection；Or the output end of the charging circuit of charger and the power management electricity of terminal
The data terminal of the input connection on road, the control terminal of the charging circuit of charger and the control circuit of terminal connects.
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 charger provided in the terminal 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,
After the access identification pin of charger turns on the access identification pin of the control circuit of terminal, control circuit reads access identification
The level of pin；If the level of access identification pin changes, control circuit generation large current charge instruction, and turn on synchronization
The connection of the control terminal of the charging circuit of serial line interface and charger, the cell positive pole ear of terminal and the charging circuit of charger
Output end connection；Wherein, the control terminal of the charging circuit of charger receives the synchronous serial interface reply of control circuit
Large current charge instructs, and is instructed according to large current charge, controls the output end output high current of the charging circuit of charger, is
Battery carries out large current charge；If the level of access identification pin does not change, control circuit generation low current charge instruction,
And turn-on control circuit data terminal and charger charging circuit control terminal connection, the electric power management circuit of terminal
The connection of the output end of the charging circuit of input and charger；Wherein, the control terminal of the charging circuit of charger receives control
The low current charge instruction that the data terminal of circuit is replied, and instructed according to low current charge, control the charging circuit of charger
Output end output low current, for battery carry out low current charge.
Embodiment of the present invention is in terms of existing technologies, there is provided terminal in there is no an integrated charging circuit, but
When having charger insertion, by control circuit in terminal control the output end of the charging circuit in charger directly with terminal
Battery positive pole ear conducting, charged for the battery of terminal, further, since there is no charging circuit in terminal, therefore
Charger output high current is terminal when being charged, in terminal mainboard and each device will not steep temperature rise, so as to ensure that end
The normal work of each device in end.
In addition, terminal also includes charging circuit and switching circuit；The input of the charging circuit of terminal and power management electricity
The output end connection on road, the output end of the charging circuit of terminal and the positive pole ear of battery connect；Wherein, inserted eventually in charger
End, and when the output end of the charging circuit of charger is connected to the input of electric power management circuit, electric power management circuit control is eventually
The charging circuit at end is that battery carries out low current charge；The fixing end of switching circuit and the control terminal of control circuit connect, switching
The large current charge that the switch terminal of circuit generates according to control circuit instructs, the synchronous serial interface of turn-on control circuit and charging
The connection of the output end of the connection of the control terminal of the charging circuit of device, the positive pole ear of battery and the charging circuit of charger；Or
Person, the low current charge that the switch terminal of switching circuit generates according to control circuit instruct, the data terminal of turn-on control circuit with
The output end of the connection of the control terminal of the charging circuit of charger, the input of electric power management circuit and the charging circuit of charger
Connection., can also when the charger that ensure that in insertion is only capable of providing low current by retaining the charging circuit of terminal inner
Normally charged for terminal.In addition, by setting switching circuit in the terminal, and the switch terminal of switching circuit is set according to control
The large current charge instruction of circuit evolving processed or low current charge instruct, the positive pole ear or power supply pipe of the battery in conduction terminal
Circuit and the connection of the control terminal of the charging circuit in charger are managed, realizes that common charging modes and large current charge mode is total to
Deposit.
In addition, switching circuit has two switch units；Wherein, a switch unit in two switch units is used for root
Instructed according to the large current charge of control circuit generation, the output end of the positive pole ear of turn-on battery and the charging circuit of charger
Connection, or the low current charge generated according to control circuit instruct, the input of electric conduction power management circuits and filling for charger
The connection of the output end of circuit；Another switch unit in two switch units is used for the big electricity generated according to control circuit
Current charge instructs, the connection of the control terminal of the synchronous serial interface of turn-on control circuit and the charging circuit of charger, or according to
The control terminal of the low current charge instruction of control circuit generation, the data terminal of turn-on control circuit and the charging circuit of charger
Connection.Pass through the defeated of the charging circuit of the positive pole ear of battery that special conduction terminal is set in switching circuit and charger
Go out end connection, or the switching circuit of the output end connection of the charging circuit of the electric power management circuit of conduction terminal and charger, and
The control terminal of the synchronous serial interface of the control circuit of special conduction terminal and the charging circuit of charger connects, or conduction terminal
Control circuit data terminal and charger charging circuit output end connection switch unit, so as to realize individually
Management and control, and during a switch unit in office failure, can individually replace, without whole switching circuit is replaced.
In addition, charger also includes AC to DC converter circuit；The input of AC to DC converter circuit is connected with power supply,
The input of the output end of AC to DC converter circuit and the charging circuit of charger connects.Turned by setting up exchange in charger
DC circuit, no matter so as to so that charger can be charged under alternating current or direct current 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 terminal of first embodiment of the invention；
Fig. 2 is the structured flowchart of the terminal of second embodiment of the invention；
Fig. 3 is the structured flowchart of the charger of third embodiment of the invention；
Fig. 4 is the structured flowchart of the charger 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 terminal, and concrete structure is as shown in Figure 1.
Terminal 100 shown in Fig. 1 is the terminal being used cooperatively with the charger 200 provided in embodiment of the present invention, such as
Mobile phone, tablet personal computer etc., specifically, the terminal 100 that Fig. 1 is related to mainly include electric power management circuit 101, control circuit 102
With battery 103.
Wherein, control circuit 102, which includes accessing, identifies that pin (the ID pins in Fig. 1), data terminal and synchronous serial connect
Mouthful, battery 103 is actual to include positive pole ear and negative lug (being not shown in figure).
It should be noted that the data terminal of control circuit 102 specifically includes correction data terminal in embodiment of the present invention
(D+ in Fig. 1) and negative data terminal (D- in Fig. 1), the synchronous serial interface of control circuit 102 specifically includes serial data
Interface (SDA in Fig. 1) and serial clock interface (SCL in Fig. 1).
Specifically, after charger inserts terminal 100, earth terminal (GND in Fig. 1) meeting of terminal 100 and charger
Earth terminal connection so that terminal 100 and charger are grounded, ensure the safety of charging process.
It is noted that in actual applications, in order to ensure the safety of each component and circuit in terminal 100, each member
The grounding pin of device and the earth terminal of circuit can be connected to the earth terminal of terminal 100, so as to be terminated in the ground connection of terminal 100
Behind ground, reach internal components and circuit is grounded, ensure that the security of charging process.
In addition, after charger inserts terminal 100, the D+ terminals of control circuit 102 connect with D- terminals, short so as to realize
Connect, ensure that charger can be the normal power supply of terminal 100.
In addition, it is noted that after charger inserts terminal 100, why the positive pole ear of battery 103 can be with filling
The output end connection of the charging circuit of electrical equipment, why the synchronous serial interface of control circuit 102 can be with the charging electricity of charger
The control terminal connection on road, is because the ID pins of control circuit 102 can read and fill after the ID pins with charger are connected
Level on the ID pins of electrical equipment, and when the level read changes, positive pole ear and the charging of battery 103 are controlled in time
The control terminal of the output end connection of the charging circuit of device, the synchronous serial interface of control circuit 102 and the charging circuit of charger
Connection, so as to be reached for the purpose that battery 103 carries out large 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 of 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, in actual applications, can be electrically connected between the electric power management circuit 101 and battery 103 of terminal 100, from
And reach the discharge and recharge of control battery 103, and the purpose that control battery 103 is powered for each component of terminal 100,
Ensure the normal use of terminal 100.
In addition, connection can be also established between electric power management circuit 101 and control circuit 102 as needed, so as to so that
Control circuit 102 can send control command to electric power management circuit 101 so that electric power management circuit 101 can be as required
Battery 103 is accordingly controlled.
Compared with prior art, the terminal provided in present embodiment, due to removing the charging circuit of terminal inner, because
This controls the output end of the charging circuit in charger straight when being charged using charger by the control circuit in terminal
Connect and turned on the positive pole ear of the battery in terminal, charged for the battery of terminal, further, since without charging electricity in terminal
Road, therefore when charger output high current is that terminal is charged, in terminal mainboard and each device will not steep temperature rise, so as to
It ensure that the normal work of each device in terminal.
Second embodiment of the present invention is related to a kind of terminal.Present embodiment is done on the basis of first embodiment
Further improve, specific improvements are：Also include switching circuit and charging circuit in the terminal, concrete structure is as shown in Figure 2.
As shown in Fig. 2 the terminal 100 in present embodiment in addition to including the component and circuit shown in Fig. 1, is gone back
Including charging circuit 104 and switching circuit 105.Wherein, the output of the input of charging circuit 104 and electric power management circuit 101
End connection, the output end of charging circuit 104 are connected with the positive pole ear of battery 103.The fixing end of switching circuit 105 and control electricity
The control terminal connection on road 102, the large current charge that the switch terminal of switching circuit 105 generates according to control circuit 102 instruct, conducting
The synchronous serial interface (SDA and SCL) of control circuit 102 and the connection of the control terminal of the charging circuit of charger, battery 103
The connection of the output end of the charging circuit of positive pole ear and charger；Or the switch terminal of switching circuit 105 is according to control circuit
The low current charge instruction of 102 generations, the data terminal (D+ terminals and D- terminals) of turn-on control circuit 102 and filling for charger
The connection of the control terminal of circuit, i.e. make D+ terminals and D- terminals in charger internal short circuit, electric power management circuit 101 it is defeated
Enter end to be connected with the output end of the charging circuit of charger.
Specifically, terminal 100 is inserted in charger, and the output end of the charging circuit of charger is connected to power management
During the input of circuit 101, it is small that electric power management circuit 101 can control the charging circuit 104 of terminal 100 to be carried out for battery 103
Electric current charges.
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 for the electric current of input terminal generally at 400 milliamperes or so, charging rate is relatively slow,
Terminal temperature of mainboard and each device in charging process does not have too many amplitude.
In addition, it is necessary to illustrate, the large current charge instruction generated in embodiment of the present invention is control in the terminal
What the voltage that the ID pins of circuit processed are read generated when changing, and low current charge instruction is control circuit in the terminal
The voltage that reads of ID pins generate when keeping constant, in actual applications, can also be set as the case may be, this
Place is not limited.
In addition, in the present embodiment, the charging circuit positioned at terminal can be the charging chip (charging of generally use
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 is high, prepares letter
It is single so that its cost substantially reduces, therefore, when charging circuit 104 is set in terminal 100, it will usually metal-oxide-semiconductor circuit is selected,
But it 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 103 in terminal 100 positive pole ear it
Between connection, or connection between electric power management circuit 101 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 100, can also select as needed
The function that other kinds of processor realizes control circuit is selected, is not limited herein.
In addition, in actual applications, switching circuit 105 can have two switch units (not shown in Fig. 2).
Specifically, a switch unit in two switch units is mainly used according to the big of the generation of control circuit 102
The connection of the output end of electric current charging instruction, the positive pole ear of turn-on battery 103 and the charging circuit of charger, or according to control
The low current charge instruction that circuit 102 generates, the input of electric conduction power management circuits 101 and the charging circuit of charger it is defeated
Go out the connection at end.
It should be noted that the output end of the charging circuit for turning on charger and the company of the positive pole ear of battery 103
Connect, or be specifically as follows a single-pole double-throw switch (SPDT) with the switch unit that the input of electric power management circuit 101 is connected, also may be used
Think other controlling switches, can specifically be selected according to actual conditions, be not limited herein.
And another switch unit in two switch units is mainly used in being filled according to the high current that control circuit 102 generates
The connection of the control terminal of electricity instruction, the synchronous serial interface of turn-on control circuit 102 and the charging circuit of charger, or according to control
The low current charge instruction that circuit 102 processed generates, the control of the data terminal of turn-on control circuit 102 and the charging circuit of charger
The connection at end processed.
It should be noted that for turn-on control circuit 102 synchronous serial interface and charger charging circuit control
The connection at end processed, or the switch unit that the data terminal of control circuit 102 is connected with the control terminal of the charging circuit of charger
It is specifically as follows a unidirectional input, the switch of multinomial output or two single-pole double-throw switch (SPDT)s, specifically can be according to reality
Border situation selection, is not limited herein.
In actual applications, the number for the switch unit that switching circuit 105 includes can be according to being actually needed and select
The particular type for the switch unit selected is set, and is not limited herein.
Compared with prior art, the terminal provided in present embodiment, it is located at the charging circuit of terminal originally by retaining,
And switching circuit is set up in terminal, so as to the current conditions of the charging circuit output in charger, by control electricity
Road controls switching circuit, turns on the connection of the charging circuit and cell positive pole ear of charger, carries out large current charge, or lead
It is logical to be connected with electric power management circuit, control the charging circuit in terminal to realize by electric power management circuit and connect directly with anode
Conducting, be reached for battery carry out low current charge purpose.Because the charging circuit set in terminal is only carrying out low current
Just turned on during charging, therefore the low current for the charging circuit for passing through terminal will not cause the drastically liter of mainboard and each device in terminal
Temperature, so that terminal can be charged under low current, it ensure that the normal work of device in terminal.
Third embodiment of the present invention is related to a kind of charger, and concrete structure is as shown in Figure 3.
Charger 200 shown in Fig. 3 is the charger being used cooperatively with the terminal 100 provided in embodiment of the present invention,
Specifically, the charger 200 that Fig. 3 is related to mainly includes access identification pin (the ID pins in Fig. 3), earth terminal (in Fig. 3
) and charging circuit 201 GND.Wherein, charging circuit 201 specifically includes output end and control terminal and with power supply (in figure
Be not shown) connection input.
Specifically, after charger 200 inserts terminal 100, the earth terminal GND of charger 200 can connect with terminal 100
Ground terminal GND connections, so that charger 200 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 200, the grounding pin and circuit of each component
Earth terminal can be connected to the earth terminal GND of charger 200, so as to after the earth terminal GND of charger 200 ground connection, reach
Internal components and circuit are grounded, and ensure that the security of charging process.
In addition, it is necessary to which explanation, there can be multiple pins in actual applications, realize respectively each with charger internal
The connection of device, and the connection with each device of terminal inner.After charger 200 inserts terminal 100, can have by pin
Body be ID pins be connected with the ID pins of the control circuit 102 of terminal 100, so as to realize with the control circuit of terminal 100 102 it
Between data communication, be specially the level that transmits charger to control circuit 102 and can provide in present embodiment.
In addition, the control circuit 102 of terminal 100, after the level state of ID pins is read, meeting is according to the electricity read
Level state generates corresponding charging instruction, such as when level changes, generation large current charge instruction, so as to control charger
The output end of 200 charging circuit 201 is connected with the positive pole ear of the battery 103 of terminal 100, the charging circuit of charger 200
201 control terminal is connected (SDA interfaces and SCL interfaces) with the synchronous serial interface of the control circuit 102 of terminal 100, so as to reach
The purpose of large current charge is carried out to the battery 103 for terminal 100.
Also such as, when level keeps constant, generation low current charge instructs, so as to control the charging of charger 200
The output end of circuit 201 is connected with the input of the electric power management circuit 101 of terminal 100, the charging circuit 201 of charger 200
Control terminal (D+ terminals and D- terminals) is connected with the data terminal of the control circuit 102 of terminal 100, so as to be reached for terminal
100 battery 103 carries out the purpose of low current charge.
In actual applications, charger 200 can also transmit other data or signal by ID pins to terminal 100, this
Place is not limited.
In addition, it is noted that the charging circuit 201 being arranged in present embodiment in charger 200 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, by the way that the charging circuit of terminal is integrated into charging
In device, by by charger access identification pin and terminal control circuit access identify pin connect, so as to
The voltage and current conditions that the control circuit transmission of terminal provides so that the control circuit of terminal can determine it is conducting charger
Charging circuit and cell positive pole ear connection, carry out large current charge, or conducting be connected with electric power management circuit, pass through
Charging circuit in electric power management circuit control terminal is realized connects direct conducting with anode, is reached for battery and carries out small electricity
The purpose of current charge.Further, since the charging circuit for carrying out large current charge is provided in charger, therefore, carrying out greatly
When electric current charges, when will not cause the steep temperature rise of mainboard and each device in terminal, and carry out low current charge, set in terminal
Charging circuit just turn on, and the low current for the charging circuit for passing through terminal will not cause in terminal mainboard and each device drastically
Heating, therefore, cause charger through the above way when being charged for terminal, whether low current charge or high current
Charging, mainboard and device in terminal will not steep temperature rise, so as to ensure that the normal work of device in terminal.
It is seen that present embodiment is the embodiment party with the matching used charger of terminal 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 charger.Present embodiment is done on the basis of the 3rd embodiment
Further improvement, specific improvements are：Also include AC to DC converter circuit in charger, concrete structure is as shown in Figure 4.
As shown in figure 4, the charger 200 in present embodiment also wraps in addition to the charging circuit 201 in including Fig. 3
Include AC to DC converter circuit 202.
Specifically, the input of AC to DC converter circuit 202 is connected with power supply, AC to DC converter circuit 202
Output end is connected with the input of charging circuit 201, that is to say, that by setting up AC to DC converter circuit in charger 200
202, and the connection of charging circuit 201 and power supply is realized using AC to DC converter circuit 202, so that charger 200
No matter can be that terminal 100 is charged under alternating current or direct current.
In addition, it is necessary to explanation, in the present embodiment, the control terminal of the charging circuit 201 in charger 200 and end
It is total particular by bidirectional two-line synchronous serial between the synchronous serial interface or data terminal of the control circuit 102 at end 100
Line realizes 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 line) and serial time clock line (SCL lines), therefore by the control of charging circuit 201 and terminal 100
In the synchronous serial interface of circuit 102 or the connection of data terminal, specifically with SDA line and SDA orifices, with SCL lines with
SCL orifices, or connected with SDA line with the D+ terminals in data terminal, connected with the D- terminals in SCL lines and data terminal
Logical, specific those skilled in the art can be set as needed, and here is omitted.
It is seen that present embodiment is the embodiment party with the matching used charger of terminal 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, terminal 100 and charger 200 in present embodiment
Specific connection is as shown in Figure 5.
Terminal 100 is inserted in charger 200, when being charged for terminal 100, the D+ of the control circuit 102 in terminal 100
Terminal is connected with D- terminals, realizes short circuit, and the ID pins of control circuit 102 can be realized with the ID pins of charger 200 to be connected,
And by reading the level of ID pins, when level changes, it is determined that needing to carry out large current charge, so as to by control circuit
Circuit between the output end conducting of the charging circuit 201 of 102 control chargers and the positive pole ear of battery 103, starts as battery
103 carry out large current charge.
It is seen that the terminal in present embodiment is the terminal provided in first embodiment, in present embodiment
Charger is the charger 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 AC to DC converter circuit 202 in charger 200, so that
Charged no matter charger 200 can be terminal 100 under alternating current or direct current.In addition, in order in charger 200
In the case that what charging circuit 201 exported is low current, remain able to be charged for the battery 103 of terminal 100, in terminal
Charging circuit 104 and switching circuit 105 are also provided with 100, and make charging circuit 104 and electric power management circuit output end and
Cell positive pole ear is connected, and the fixing end of switching circuit 105 is connected with the control terminal of control circuit 102, and switching circuit 105 is cut
The large current charge that end generates according to control circuit 102 is changed to instruct, the synchronous serial interface of turn-on control circuit 102 (SDA and
SCL) with the connection of the control terminal of the charging circuit of charger, the positive pole ear of battery 103 and the charging circuit of charger it is defeated
Go out the connection at end；Or the low current charge that the switch terminal of switching circuit 105 generates according to control circuit 102 instructs, conducting control
The connection of the data terminal (D+ terminals and D- terminals) of circuit 102 processed and the control terminal of the charging circuit of charger, i.e. make D+ ends
Son and D- terminals are in charger internal short circuit, the output end of the input of electric power management circuit 101 and the charging circuit of charger
Connection, thereby may be ensured that the low current provided by charger 200 smoothly can enter in battery 103, reach using small
The purpose of electric current charging, terminal 100 and the specific connection of charger 200 are as shown in Figure 6 in present embodiment.
It is seen that the terminal in present embodiment is the terminal provided in second embodiment, in present embodiment
Charger is the charger 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 charger in the terminal and any charger embodiments in above-mentioned any termini embodiment, terminal and charger
Interaction it is specifically as shown in Figure 7.
After charger inserts terminal, the access identification pin of the access identification pin of charger and the control circuit of terminal
After conducting, control circuit reads the level of access identification pin.The control circuit of terminal is reading the electricity of access identification pin
After flat, the level for identifying pin according to access generates corresponding charging instruction.
Specifically, if the level of access identification pin changes, such as it is changed into low level, control electricity from high level
Road generation large current charge instruction, and turn on the connection of the control terminal of the charging circuit of synchronous serial interface and charger, terminal
Cell positive pole ear and charger charging circuit output end connection.
It should be noted that turn-on control circuit synchronous serial interface and charger charging circuit control terminal
After the connection of the output end of connection, the cell positive pole ear of terminal and the charging circuit of charger, the big electricity of control circuit generation
Current charge instruction can be transmitted by bidirectional two-line synchronous serial bus to the control terminal of the charging circuit of charger, charger
Charging circuit instructs according to the large current charge received, controls the output end output high current of the charging circuit of charger, is
Battery carries out large current charge.
In addition, if the level of access identification pin does not change, control circuit generation low current charge instructs, and turns on
The connection of the data terminal of control circuit and the control terminal of the charging circuit of charger, the input of the electric power management circuit of terminal
With the connection of the output end of the charging circuit of charger.
It should be noted that turn-on control circuit data terminal and charger charging circuit control terminal company
Connect, after the connection of the output end of the input of the electric power management circuit of terminal and the charging circuit of charger, control circuit generation
Low current charge instruction can be transmitted by bidirectional two-line synchronous serial bus to the control terminal of the charging circuit of charger, fill
The charging circuit of electrical equipment instructs according to the low current charge received, controls the output end of the charging circuit of charger to export small electricity
Stream, low current charge is carried out for battery.
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)
- A kind of 1. terminal, it is characterised in that including：Electric power management circuit and the control with electric power management circuit electrical connection Circuit and battery processed；The control circuit includes access identification pin, data terminal and synchronous serial interface；Wherein, after charger inserts the terminal, the earth terminal of the terminal is connected with the earth terminal of the charger, described The access of access identification pin and the charger of control circuit identifies that pin is connected, the positive pole ear of the battery with it is described The output end connection of the charging circuit of charger, the charging circuit of the synchronous serial interface of the control circuit and the charger Control terminal connection, the correction data terminal in the data terminal is connected with the negative data terminal in the data terminal.
- 2. terminal according to claim 1, it is characterised in that the terminal also includes charging circuit and switching circuit；The input of the charging circuit of the terminal is connected with the output end of the electric power management circuit, the charging electricity of the terminal The output end on road is connected with the positive pole ear of the battery；Wherein, the terminal, and the charger are inserted in the charger The output end of charging circuit when being connected to the input of the electric power management circuit, the electric power management circuit controls the end The charging circuit at end is that the battery carries out low current charge；The fixing end of the switching circuit is connected with the control terminal of the control circuit, and the switch terminal of the switching circuit is according to institute The large current charge instruction of control circuit generation is stated, turns on the synchronous serial interface of the control circuit and filling for the charger The connection of the control terminal of circuit, the positive pole ear of the battery and the connection of the output end of the charging circuit of the charger；Or the low current charge that the switch terminal of the switching circuit generates according to the control circuit instructs, and turns on the control The connection of the data terminal of circuit processed and the control terminal of the charging circuit of the charger, the input of the electric power management circuit With the connection of the output end of the charging circuit of the charger.
- 3. terminal according to claim 2, it is characterised in that the switching circuit has two switch units；Wherein, a switch unit in described two switch units is used for the large current charge generated according to the control circuit Instruction, turns on the connection of the output end of the positive pole ear of the battery and the charging circuit of the charger, or according to the control The low current charge instruction of circuit evolving processed, turns on the input of the electric power management circuit and the charging circuit of the charger Output end connection；Another switch unit in described two switch units is used to be referred to according to the large current charge that the control circuit generates Order, turns on the connection of the control terminal of the synchronous serial interface of the control circuit and the charging circuit of the charger, or according to The low current charge instruction of the control circuit generation, turns on the data terminal of the control circuit and the charging of the charger The connection of the control terminal of circuit.
- 4. according to the terminal described in claims 1 to 3 any one, it is characterised in that the control circuit is BBP.
- 5. a kind of charger, including access identification pin and earth terminal, it is characterised in that charging electricity is provided with the charger Road, the charging circuit of the charger include input, output end and control terminal；The input of the charging circuit of the charger is used to be connected with power supply；The earth terminal of the charger is used to be connected with the earth terminal of terminal；The access identification pin of the charger is connected with the access identification pin of the control circuit of the terminal；Wherein, after the charger inserts the terminal, the output end of the charging circuit of the charger and the terminal The positive pole ear connection of battery, the synchronous serial of the control terminal of the charging circuit of the charger and the control circuit of the terminal Interface connects；Or the output end of the charging circuit of the charger is connected with the input of the electric power management circuit of the terminal, institute The control terminal for stating the charging circuit of charger is connected with the data terminal of the control circuit of the terminal.
- 6. charger according to claim 5, 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 of the charger.
- 7. the charger according to claim 5 or 6, its feature exists, and the control terminal of the charging circuit of the charger passes through Bidirectional two-line synchronous serial bus and the synchronous serial interface of control circuit or the control circuit of the terminal of the terminal Data terminal connection.
- 8. a kind of charging system, it is characterised in that including the terminal described in Claims 1-4 any one, and claim Charger 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：Terminal is inserted in charger, the access identification pin of the charger draws with the access identification of the control circuit of the terminal After pin conducting, the control circuit reads the level of access identification pin；If the level of the access identification pin changes, the control circuit generation large current charge instruction, and turn on same Serial line interface and the connection of the control terminal of the charging circuit of the charger are walked, the cell positive pole ear of the terminal fills with described The connection of the output end of the charging circuit of electrical equipment；Wherein, the control terminal of the charging circuit of the charger receives the control electricity The large current charge instruction that the synchronous serial interface on road is replied, and instructed according to the large current charge, filled described in control The output end output high current of the charging circuit of electrical equipment, large current charge is carried out for the battery；If the level of the access identification pin does not change, the control circuit generation low current charge instruction, and turn on The connection of the data terminal of the control circuit and the control terminal of the charging circuit of the charger, the power management of the terminal The input of circuit and the connection of the output end of the charging circuit of the charger；Wherein, the charging circuit of the charger The low current charge instruction that the data terminal that control terminal receives the control circuit is replied, and according to the low current charge Instruction, the output end output low current of the charging circuit of the charger is controlled, low current charge is carried out for the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637478.9A CN107579551A (en) | 2017-07-31 | 2017-07-31 | Terminal, charger, charging system and charging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637478.9A CN107579551A (en) | 2017-07-31 | 2017-07-31 | Terminal, charger, charging system and charging method |
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| Publication Number | Publication Date |
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| CN107579551A true CN107579551A (en) | 2018-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710637478.9A Pending CN107579551A (en) | 2017-07-31 | 2017-07-31 | Terminal, charger, charging system and charging method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109495807A (en) * | 2018-12-26 | 2019-03-19 | 上海与德通讯技术有限公司 | A kind of charging bluetooth earphone box and bluetooth headset |
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| CN104993562A (en) * | 2015-08-05 | 2015-10-21 | 青岛海信移动通信技术股份有限公司 | Power supply adapter capable of charging directly |
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