CN206878505U - A kind of charging circuit and mobile terminal - Google Patents
A kind of charging circuit and mobile terminal Download PDFInfo
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- CN206878505U CN206878505U CN201720613539.3U CN201720613539U CN206878505U CN 206878505 U CN206878505 U CN 206878505U CN 201720613539 U CN201720613539 U CN 201720613539U CN 206878505 U CN206878505 U CN 206878505U
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Abstract
The utility model, which provides a kind of charging circuit and mobile terminal, the charging circuit, to be included：High-voltage charging module, the first end of the high-voltage charging module are connected to charging inlet, and the second end of the high-voltage charging module is used to be connected to battery；Low pressure charging module, the first end of the low pressure charging module are connected to the charging inlet, and the second end of the low pressure charging module is used to be connected to the battery；Handover module, first total output end of the handover module are connected to the controlled end of the high-voltage charging module, and second total output end of the handover module is connected to the controlled end of the low pressure charging module；Controller, the externally connected communication interface of first end of the controller, the second end of the controller is connected to the controlled end of the handover module.Pass through charging circuit provided by the utility model so that mobile terminal can compatible a variety of fast charge technology charged, improve compatibility during mobile terminal charging.
Description
Technical field
It the utility model is related to communication technical field, more particularly to a kind of charging circuit and mobile terminal.
Background technology
With the continuous popularization of the mobile terminals such as smart mobile phone, tablet personal computer and video camera, the continuation of the journey energy to mobile terminal
The requirement of power is growing day by day.In order to improve the endurance of mobile terminal, the capacity of battery is increasing, the charging interval of battery
Also it is increasingly longer.In order to shorten the charging interval of mobile terminal, generate fast charge technology, by improve the charging current of battery with
Reduce the charging interval.
Currently used fast charge technology includes low pressure fast charge technology and high pressure fast charge technology, specifically, low pressure fast charge technology
Using low-voltage, high-current mode, the high current that charger exports directly is poured into battery, to improve charging rate, high pressure fast charge skill
Art increases the general power of mobile terminal input by improving the output voltage of charger, in mobile terminal side by the height of input
Pressure low current is converted to the low-voltage, high-current of battery-end needs, to improve charging rate.Due to different fast charge technology realization principles
It is different with mode, it is therefore desirable to which that the charger of the support quick charge of different size, user is in mobile terminal charging process
Only quick charge could be realized using the charger of matching.
In the prior art, the problem of compatibility is poor when being charged for mobile terminal, effective solution is not yet proposed at present
Certainly scheme.
Utility model content
The utility model embodiment provides a kind of charging circuit and mobile terminal, compatibility during solving mobile terminal charging
The problem of poor.
In a first aspect, the utility model embodiment provides a kind of charging circuit, applied to mobile terminal, the charging circuit
Including：
High-voltage charging module, the first end of the high-voltage charging module are connected to charging inlet, the high-voltage charging module
The second end be used for be connected to battery；
Low pressure charging module, the first end of the low pressure charging module are connected to the charging inlet, the low pressure charging
Second end of module is used to be connected to the battery, wherein, the charging voltage of the low pressure charging module is filled less than the high pressure
The charging voltage of electric module；
Handover module, first total output end of the handover module are connected to the controlled end of the high-voltage charging module, institute
The second total output end for stating handover module is connected to the controlled end of the low pressure charging module；
Controller, the externally connected communication interface of first end of the controller, with via the external communication interface with
Charger, which is established to communicate to connect, simultaneously obtains the type of charger, the second end of the controller be connected to the handover module by
End is controlled, control instruction is sent to the handover module with the type according to charger, the handover module is used for according to the control
System instruction turns on the high-voltage charging module or the low pressure charging module.
Second aspect, the utility model embodiment also provide a kind of mobile terminal.The mobile terminal includes above-mentioned charging
Circuit.
So, in the utility model embodiment, by using the charging circuit including forming as follows：High-voltage charging module,
The first end of the high-voltage charging module is connected to charging inlet, and the second end of the high-voltage charging module is used to be connected to electricity
Pond；Low pressure charging module, the first end of the low pressure charging module are connected to the charging inlet, the low pressure charging module
Second end is used to be connected to the battery, wherein, the charging voltage of the low pressure charging module is less than the high-voltage charging module
Charging voltage；Handover module, first total output end of the handover module are connected to the controlled end of the high-voltage charging module,
Second total output end of the handover module is connected to the controlled end of the low pressure charging module；Controller, the controller
The externally connected communication interface of first end, charging is communicated to connect and obtains to be established via the external communication interface and charger
The type of device, the second end of the controller are connected to the controlled end of the handover module, with the type according to charger to institute
State handover module and send control instruction, the handover module be used for according to the control instruction turn on the high-voltage charging module or
The low pressure charging module.The charging circuit of the utility model embodiment can both enter horizontal high voltage fast charge by high-voltage charging module
Charging, low pressure fast charge charging can also be carried out by low pressure charging module, so as to which mobile terminal can compatible a variety of fast charge skill
Art is charged, and improves compatibility during mobile terminal charging.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, the utility model embodiment will be retouched below
The required accompanying drawing used is briefly described in stating, it should be apparent that, drawings in the following description are only the utility model
Some embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the circuit structure diagram for the charging circuit that the utility model embodiment provides；
Fig. 2 is the circuit structure diagram for the charging circuit that the another embodiment of the utility model provides；
Fig. 3 is the circuit structure diagram for the charging circuit that the another embodiment of the utility model provides；
Fig. 4 is the circuit structure diagram for the charging circuit that the another embodiment of the utility model provides；
Fig. 5 is the structure chart for the mobile terminal that the utility model embodiment provides；
Fig. 6 is the structure chart for the mobile terminal that the another embodiment of the utility model provides.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that described embodiment is the utility model part of the embodiment, rather than whole implementation
Example.Based on the embodiment in the utility model, those of ordinary skill in the art are obtained under the premise of creative work is not made
The every other embodiment obtained, belong to the scope of the utility model protection.
The utility model embodiment provides a kind of charging circuit, applied to mobile terminal.Referring to Fig. 1, Fig. 1 is this practicality
The circuit structure diagram for the charging circuit that new embodiment provides.As shown in figure 1, the charging circuit 10 includes high-voltage charging module
101st, low pressure charging module 102, handover module 103, controller 104 and charging inlet 105, wherein：
High-voltage charging module 101, the first end of the high-voltage charging module 101 are connected to charging inlet 105, the high pressure
Second end of charging module 101 is used to be connected to battery 106.
Low pressure charging module 102, the first end of the low pressure charging module 102 is connected to the charging inlet 105, described
Second end of low pressure charging module 102 is used to be connected to the battery 106, wherein, the charging electricity of the low pressure charging module 102
Charging voltage of the pressure less than the high-voltage charging module 101.
Handover module 103, first total output end of the handover module 103 are connected to the high-voltage charging module 101
Controlled end, second total output end of the handover module 103 are connected to the controlled end of the low pressure charging module 102.
Controller 104, the externally connected communication interface of first end of the controller 104, with via the PERCOM peripheral communication
Interface is established with charger communicates to connect and obtains the type of charger, and the second end of the controller 104 is connected to described cut
The controlled end of block 103 is changed the mold, control instruction, the switching mould are sent to the handover module 103 with the type according to charger
Block 103 is used to turn on the high-voltage charging module 101 or the low pressure charging module 102 according to the control instruction.
In the present embodiment, above-mentioned high-voltage charging module 101 supports the charging of high pressure fast charge, above-mentioned low pressure charging module 102
Hold low pressure fast charge charging, specifically, high-voltage charging module 101 turn on and low pressure charging module 102 by when, filled by high pressure
Electric module 101 charges to battery 106, and high-voltage charging module 101 by and low pressure charging module 102 turn on when, by low
Pressure charging module 102 charges to battery 106.
In the present embodiment, controller 104 can be by external communication interface (for example, USB interface of mobile terminal) with filling
Electrical equipment connects, and according to existing high pressure fast charge agreement and low pressure fast charge agreement, obtains the charger type currently connected.If sentence
Break the charger for that the charger currently connected is high pressure fast charge, then can send the first control instruction to handover module 103, cut
Mold changing block 103 turns on high-voltage charging module 101 according to the first control instruction and charged to battery 106；If judge what is currently connected
Charger is the charger of low pressure fast charge, then can send the second control instruction, the basis of handover module 103 to handover module 103
Second control instruction conducting low pressure charging module 102 charges to battery 106.
It should be noted that above-mentioned charging inlet and external communication interface can be same interfaces, for example, being movement
The USB interface or TYPE-C interfaces of terminal.
In the present embodiment, above-mentioned mobile terminal can be mobile phone, tablet personal computer (Tablet Personal Computer),
Laptop computer (Laptop Computer), personal digital assistant (personal digital assistant, abbreviation PDA),
Mobile Internet access device (Mobile Internet Device, MID) or wearable device (Wearable Device) etc..
In the utility model embodiment, by using the charging circuit including forming as follows：High-voltage charging module, the height
The first end of pressure charging module is connected to charging inlet, and the second end of the high-voltage charging module is used to be connected to battery；Low pressure
Charging module, the first end of the low pressure charging module are connected to the charging inlet, the second end of the low pressure charging module
For being connected to the battery, wherein, the charging voltage of the low pressure charging module is less than the charging of the high-voltage charging module
Voltage；Handover module, first total output end of the handover module is connected to the controlled end of the high-voltage charging module, described to cut
Second total output end of mold changing block is connected to the controlled end of the low pressure charging module；Controller, the first end of the controller
Externally connected communication interface, the class of charger is communicated to connect and obtains to be established via the external communication interface and charger
Type, the second end of the controller are connected to the controlled end of the handover module, with the type according to charger to the switching
Module sends control instruction, and the handover module is used to turn on the high-voltage charging module or described low according to the control instruction
Press charging module.The charging circuit of the utility model embodiment can both enter the charging of horizontal high voltage fast charge by high-voltage charging module,
Low pressure fast charge charging can also be carried out by low pressure charging module, so as to which mobile terminal can compatible a variety of fast charge technology progress
Charging, improve compatibility during mobile terminal charging.
Fig. 2 is the circuit structure diagram for the charging circuit that the another embodiment of the utility model provides.Referring to Fig. 2, the switching
First total output end of module 103 includes multiple output ends, and high-voltage charging module 101 includes：First metal-oxide-semiconductor 1011, described
The source electrode of one metal-oxide-semiconductor 1011 is connected to the charging inlet 105；First diode 1012, first diode 1012 is just
Pole is connected to the source electrode of first metal-oxide-semiconductor 1011, and the negative pole of first diode 1012 is connected to first metal-oxide-semiconductor
1011 drain electrode；First control module 1013, the input of first control module 1013 are connected to described first total output
The first output end in end, the output end of first control module 1013 are connected to the gate pole of first metal-oxide-semiconductor 1011, use
In the control on or off of the first metal-oxide-semiconductor 1011；Voltage transformation module 1014, the first of the voltage transformation module 1014
End is connected to the drain electrode of first metal-oxide-semiconductor 1011, and the second end of the voltage transformation module 1014 is used to be connected to the electricity
Pond 106；Output capacitance 1015, the first end of the output capacitance 1015 are connected to the second of the voltage transformation module 1014
End, the second end ground connection of the output capacitance 1015, the battery 106 are connected in parallel on the both ends of the output capacitance 1015.
In the present embodiment, high-voltage charging module 101 supports the charging of high pressure fast charge, due to the input of the charger of high pressure fast charge
Voltage is higher, in order to avoid too high input voltage influences the normal work of circuit element in charging circuit, can pass through setting
First metal-oxide-semiconductor 1011 carries out partial pressure, to reduce input voltage.Specifically, the first metal-oxide-semiconductor 1011 can select high voltage bearing crystal
Pipe.First control module 1013 is used for the on or off for controlling the first metal-oxide-semiconductor 1011, specifically, the first control module 1013
It can be GPIO port, the on or off of the first metal-oxide-semiconductor 1011 is controlled by exporting high level or low level.Voltage conversion
The high voltage that module 1014 is used to input the charger of high pressure fast charge carries out voltage conversion, to obtain low-voltage, high-current, specifically
, voltage transformation module 1014 can be dc-dc.Output capacitance 1015 is used for what voltage transformation module 1014 was exported
Electric current is filtered, to improve the stability of output voltage.It should be noted that output capacitance 1015 can be an electric capacity,
Can also multiple electric capacity combination, the present embodiment do not limited this.
Optionally, include referring to Fig. 2, the voltage transformation module 1014：Second metal-oxide-semiconductor 10141, second metal-oxide-semiconductor
10141 drain electrode is connected to the drain electrode of first metal-oxide-semiconductor 1011；Second diode 10142, second diode 10142
Positive pole be connected to the source electrode of second metal-oxide-semiconductor 10141, the negative pole of second diode 10142 is connected to described second
The drain electrode of metal-oxide-semiconductor 10141；Second control module 10143, the input of second control module 10143 are connected to described
The second output end in one total output end, the first output end of second control module 10143 are connected to second metal-oxide-semiconductor
10141 gate pole, for controlling the on or off of the second metal-oxide-semiconductor 10141；3rd metal-oxide-semiconductor 10144, the 3rd metal-oxide-semiconductor
10144 gate pole is connected to the second output end of second control module 10143, and the source electrode of the 3rd metal-oxide-semiconductor 10144 connects
Ground, the drain electrode of the 3rd metal-oxide-semiconductor 10144 are connected to the source electrode of second metal-oxide-semiconductor 10141；Inductance 10145, the inductance
10145 first end is connected to the source electrode of second metal-oxide-semiconductor 10141, and the second end of the inductance 10145 is connected to described defeated
Go out the first end of electric capacity 1015.
In the present embodiment, the second metal-oxide-semiconductor 10141 of control and the ON time and electricity of the 3rd metal-oxide-semiconductor 10144 can be passed through
Feel L (namely inductance 10145) and realize decompression, specifically, second metal-oxide-semiconductor 10141 can be controlled by the second control module 10143
With the ON time of the 3rd metal-oxide-semiconductor 10144.In addition, in the present embodiment, due to the first metal-oxide-semiconductor 1011 and the second metal-oxide-semiconductor 10141
Opposite direction connection, it can prevent parasitic body diode from leaking electricity.
Optionally, referring to Fig. 2, the first end of the output capacitance 1015 is additionally coupled to power supply interface 107, with to the shifting
Dynamic terminal system power supply.
In the present embodiment, the first end of output capacitance 1015 is additionally coupled to power supply interface 107, so as to battery
During 106 chargings, powered to mobile terminal system, it is mobile to avoid during being charged to the battery of mobile terminal
The battery of terminal also need to give mobile terminal system power supply, cause battery can not be full of the problem of.Specifically, mobile terminal system
Can the processor including mobile terminal, application program, the first-class module in addition to battery of shooting.
Optionally, the charging circuit 10 also includes：4th metal-oxide-semiconductor 108, the drain electrode of the 4th metal-oxide-semiconductor 108 are connected to
The first end of the output capacitance 1015, the source electrode of the 4th metal-oxide-semiconductor 108 are used to be connected to the battery 106；3rd control
Module 109, the input of the 3rd control module 109 are connected to the 3rd total output end of the handover module 103, and described
The output end of three control modules 109 is connected to the gate pole of the 4th metal-oxide-semiconductor 108, for controlling the 4th metal-oxide-semiconductor 108 to lead
Logical or cut-off.
In the present embodiment, by setting the 4th metal-oxide-semiconductor 108, on the one hand it can prevent battery is past from filling when not inserting charger
Electrical equipment path reverse irrigated current, on the other hand it can prevent mobile terminal system power down when charging and plugging.Specifically, it can pass through
3rd control module 109 controls the on or off of the 4th metal-oxide-semiconductor 108, wherein, the 3rd control module 109 can be GPIO port,
By exporting high level or low level to control the on or off of the 4th metal-oxide-semiconductor 108.
Optionally, multiple output ends are included referring to Fig. 2, second total output end of the handover module 103, the low pressure is filled
Electric module 102 includes：5th metal-oxide-semiconductor 1021, the source electrode of the 5th metal-oxide-semiconductor 1021 are connected to the charging inlet 105；3rd
Diode 1022, the positive pole of the 3rd diode 1022 are connected to the source electrode of the 5th metal-oxide-semiconductor 1021, the three or two pole
The negative pole of pipe 1022 is connected to the drain electrode of the 5th metal-oxide-semiconductor 1021；4th control module 1023, the 4th control module
1023 input is connected to the first output end in described second total output end, the output end of the 4th control module 1023
The gate pole of the 5th metal-oxide-semiconductor 1021 is connected to, for controlling the on or off of the 5th metal-oxide-semiconductor 1021；6th metal-oxide-semiconductor
1024, the drain electrode of the 6th metal-oxide-semiconductor 1024 is connected to the drain electrode of the 5th metal-oxide-semiconductor 1021, the 6th metal-oxide-semiconductor 1024
Source electrode is used to be connected to the battery 106；4th diode 1025, the positive pole of the 4th diode 1025 are connected to described
The source electrode of six metal-oxide-semiconductors 1024, the negative pole of the 4th diode 1025 are connected to the drain electrode of the 6th metal-oxide-semiconductor 1024；5th
Control module 1026, the input of the 5th control module 1026 are connected to the second output in described second total output end
End, the output end of the 5th control module 1026 is connected to the gate pole of the 6th metal-oxide-semiconductor 1024, for controlling the described 6th
The on or off of metal-oxide-semiconductor 1024.
In the present embodiment, the 5th metal-oxide-semiconductor 1021 and 1,024 two metal-oxide-semiconductors of the 6th metal-oxide-semiconductor are reverse in low pressure charging module 102
Connection, can prevent parasitic body diode from leaking electricity, and can prevent battery from pouring in down a chimney electricity toward charger path when not inserting charger
Stream.4th control module 1023 and the 5th control module 1026 are respectively used to control the 5th metal-oxide-semiconductor 1021 and the 6th metal-oxide-semiconductor 1024
On or off.The present embodiment can pass through low pressure charging module in the charger of the external low pressure fast charge of charging inlet 105
102 charge to battery 106.
Optionally, referring to Fig. 3, the 5th metal-oxide-semiconductor 1021 and first metal-oxide-semiconductor 1011 are same metal-oxide-semiconductor, described
3rd diode 1022 and first diode 1012 be same diode, first control module 1013 and described the
Four control modules 1023 are same control module.
In the present embodiment, high-voltage charging module 101 and low pressure charging module 102 be multiplexed the first metal-oxide-semiconductor, the first diode and
First control module, it can not only reduce charging IC (namely charge integrated circuit) area, cost can also be saved.
Specifically, referring to Fig. 4, the charging IC parts in the charging circuit of the present embodiment are integrated with high-voltage charging module and low
Charging module is pressed, and high-voltage charging module 101 and low pressure charging module 102 are multiplexed the first metal-oxide-semiconductor, the first diode and the first control
Molding block, to save the IC areas that charge, and cost can be reduced.It should be noted that because inductance area is larger, filled to reduce
Electric IC areas, inductance are not integrated on charging IC, and IC is by switch pin SW10146 for charging, to connect inductance 10145.
Optionally, the handover module 103 is connected to the controller 104 via IIC interfaces or SPI interface.
Specifically, handover module 103 can be communicated by IIC interfaces 110 or SPI interface with controller 104, to obtain
The type of charger is obtained, and configures corresponding charge parameter, for example, size of configuration input voltage and/or input current etc..
Optionally, the external communication interface is USB interface or TYPE-C interfaces.
It should be noted that above-mentioned handover module 103 can be the logic control chip for including multiple output pins, it is above-mentioned
Controller 104 can be the microcontroller (namely MCU) of mobile terminal.
Illustrate the workflow of the charging circuit of the present embodiment with example below：
Step a, mobile terminal connection charger.
Step b, the MCU of mobile terminal is established via USB interface and charger and communicated to connect.
In the present embodiment, after MCU and charger establish communication connection, MCU can be according to high pressure fast charge agreement and low
Fast charge agreement is pressed, judges charger type.
Specifically, the present embodiment can be after MCU and charger establish communication connection, it is to support height to judge charger respectively
Fast charge agreement is pressed, or supports low pressure fast charge agreement, or above two fast charge agreement not to support.If specifically, charger
Support high pressure fast charge agreement, it is determined that charger is the charger of high pressure fast charge, if charger supports low pressure fast charge agreement, really
Determine the charger that charger is low pressure fast charge, if charger does not support low pressure fast charge agreement, also do not support high pressure fast charge agreement,
Then determine that charger is regular charger.
Optionally, the present embodiment can distribute different identifiers for different types of charger in advance, for example, low pressure is fast
The identifier charge flag=00 of the charger filled, the identifier charge flag=11 of the charger of high pressure fast charge, often
Advise identifier charge flag=01 or charge flag=10 of charger etc..MCU after the type of charger is got,
Charge flag value corresponding to return is led to handover module so as to which handover module can control according to charge flag value
Logical high-voltage charging module or conducting low pressure charging module.
Step c, judge charger whether be high pressure fast charge charger.
If specifically, it is current be connected to mobile terminal charger be high pressure fast charge charger, charge flag=
11, and step d is performed, otherwise perform step e.
Step d, handover module control conducting high-voltage charging module, to charge the battery.
Specifically, referring to Fig. 3, control the 6th metal-oxide-semiconductor 1024 of cut-off of handover module 103, the first metal-oxide-semiconductor 1011 and the are turned on
Four metal-oxide-semiconductors 108.In addition, handover module 103 also controls the second metal-oxide-semiconductor 1042 and the 3rd metal-oxide-semiconductor 10144 according to certain sequential
It is switched off and on, and under the mating reaction of inductance 10145, the input voltage of charger is depressured, via output
Exported after the voltage stabilizing of electric capacity 1015 to battery 106 and mobile terminal system.
In this implementation, after handover module controls conducting high-voltage charging module, using high pressure fast charge charging flow to battery
Charged, until charging complete.
It should be noted that handover module 103 can be communicated by IIC interfaces or SPI interface with MCU, to obtain
The type of charger, and corresponding charge parameter is configured, for example, size of configuration input voltage and/or input current etc..
Step e, judge charger whether be low pressure fast charge charger.
If specifically, it is current be connected to mobile terminal charger be low pressure fast charge charger, charge flag=
00, and step f is performed, otherwise perform step g.
Step f, handover module control conducting low pressure charging module, to charge the battery.
Specifically, referring to Fig. 3, handover module control the first metal-oxide-semiconductor 1011 of conducting and the 6th metal-oxide-semiconductor 1024, cut-off second
The metal-oxide-semiconductor 10144 of metal-oxide-semiconductor 1042 and the 3rd, to charge the battery, while can also turn on the 4th metal-oxide-semiconductor 108, with to mobile whole
End system is powered.
In this implementation, after handover module controls conducting low pressure charging module, using low pressure fast charge charging flow to battery
Charged, until charging complete.
Step g, normal charge scheme is switched to charge the battery.
Specifically, referring to Fig. 3, the normal charge scheme of the present embodiment can be by the control of handover module 103 cut-off the
Six metal-oxide-semiconductors 1024, turn on the first metal-oxide-semiconductor 1011 and the 4th metal-oxide-semiconductor 108.In addition, handover module 103 also controls the second metal-oxide-semiconductor
1042 and the 3rd metal-oxide-semiconductor 10144 be switched off and on according to certain sequential, it is right and under the mating reaction of inductance 10145
The input voltage of charger is depressured, via being exported after the voltage stabilizing of output capacitance 1015 to battery 106 and mobile terminal system.By
It is much lower compared to high pressure fast charge charging scheme in the input voltage of regular charger, therefore charging current is smaller.
In this implementation, after switching to normal charge scheme and charging the battery, battery is carried out using normal charge flow
Charging, until charging complete.
It should be noted that above-mentioned normal charge scheme can refer to the charging scheme of existing non-fast charge, normal charge
Device can refer to the charger of existing non-fast charge.
From the foregoing, it will be observed that the charging circuit of the present embodiment can realize the charging of high pressure fast charge and the charging of low pressure fast charge, and can be with
Fast charge scheme is automatically selected according to charger type.Two kinds of fast charge charging schemes are integrated by a charging IC, save charging IC
Area, cost is reduced, and switch control logic is simple.
The utility model embodiment also provides a kind of mobile terminal.Referring to Fig. 5, Fig. 5 is that the utility model is implemented to provide
The structure chart of mobile terminal.As shown in figure 5, mobile terminal 500 includes the charging circuit 10 of any of the above-described embodiment.
Specifically, for charging circuit 10, same to above-described embodiment, will not be repeated here.
In the utility model embodiment, high-voltage charging module, the first end of the high-voltage charging module is connected to charging
Mouthful, the second end of the high-voltage charging module is used to be connected to battery；Low pressure charging module, the first of the low pressure charging module
End is connected to the charging inlet, and the second end of the low pressure charging module is used to be connected to the battery, wherein, the low pressure
The charging voltage of charging module is less than the charging voltage of the high-voltage charging module；Handover module, the first of the handover module
Total output end is connected to the controlled end of the high-voltage charging module, and second total output end of the handover module is connected to described low
Press the controlled end of charging module；Controller, the externally connected communication interface of first end of the controller, with via the outside
Communication interface is established with charger communicates to connect and obtains the type of charger, and the second end of the controller is connected to described cut
The controlled end of block is changed the mold, control instruction is sent to the handover module with the type according to charger, the handover module is used for
The high-voltage charging module or the low pressure charging module are turned on according to the control instruction.The charging of the utility model embodiment
Circuit can both enter the charging of horizontal high voltage fast charge by high-voltage charging module, can also carry out low pressure fast charge by low pressure charging module
Charging, so as to mobile terminal can compatible a variety of fast charge technology charged, improve compatibility during mobile terminal charging.
Referring to Fig. 6, Fig. 6 is the structure chart for the mobile terminal that the utility model implements offer.
As shown in fig. 6, mobile terminal 600 includes radio frequency (Radio Frequency, RF) circuit 610, memory 620, defeated
Enter unit 630, display unit 640, processor 650, voicefrequency circuit 660, communication module 670, power supply 680 and charging circuit 690.
Optionally, charging circuit 690 includes：High-voltage charging module, the first end of the high-voltage charging module, which is connected to, fills
Electrical interface, the second end of the high-voltage charging module are used to be connected to battery；Low pressure charging module, the low pressure charging module
First end is connected to the charging inlet, and the second end of the low pressure charging module is used to be connected to the battery, wherein, it is described
The charging voltage of low pressure charging module is less than the charging voltage of the high-voltage charging module；Handover module, the handover module
First total output end is connected to the controlled end of the high-voltage charging module, and second total output end of the handover module is connected to institute
State the controlled end of low pressure charging module；Controller, the externally connected communication interface of first end of the controller, with via described
External communication interface is established with charger to be communicated to connect and obtains the type of charger, and the second end of the controller is connected to institute
The controlled end of handover module is stated, control instruction, the handover module are sent to the handover module with the type according to charger
For turning on the high-voltage charging module or the low pressure charging module according to the control instruction.
Optionally, the first of the handover module total output end includes multiple output ends, and the high-voltage charging module includes：
First metal-oxide-semiconductor, the source electrode of first metal-oxide-semiconductor are connected to the charging inlet；First diode, first diode is just
Pole is connected to the source electrode of first metal-oxide-semiconductor, and the negative pole of first diode is connected to the drain electrode of first metal-oxide-semiconductor；The
One control module, the input of first control module is connected to the first output end in described first total output end, described
The output end of first control module is connected to the gate pole of first metal-oxide-semiconductor, for controlling first metal-oxide-semiconductor to turn on or cutting
Only；Voltage transformation module, the first end of the voltage transformation module are connected to the drain electrode of first metal-oxide-semiconductor, and the voltage turns
Second end of mold changing block is used to be connected to the battery；Output capacitance, the first end of the output capacitance are connected to the voltage
Second end of modular converter, the second end ground connection of the output capacitance, the cell parallel is at the both ends of the output capacitance.
Optionally, the voltage transformation module includes：Second metal-oxide-semiconductor, the drain electrode of second metal-oxide-semiconductor are connected to described
The drain electrode of one metal-oxide-semiconductor；Second diode, the positive pole of second diode are connected to the source electrode of second metal-oxide-semiconductor, and described
The negative pole of two diodes is connected to the drain electrode of second metal-oxide-semiconductor；Second control module, the input of second control module
The second output end being connected in described first total output end, the first output end of second control module are connected to described
The gate pole of two metal-oxide-semiconductors, for controlling the second metal-oxide-semiconductor on or off；3rd metal-oxide-semiconductor, the gate pole of the 3rd metal-oxide-semiconductor connect
It is connected to the second output end of second control module, the source ground of the 3rd metal-oxide-semiconductor, the drain electrode of the 3rd metal-oxide-semiconductor
It is connected to the source electrode of second metal-oxide-semiconductor；Inductance, the first end of the inductance is connected to the source electrode of second metal-oxide-semiconductor, described
Second end of inductance is connected to the first end of the output capacitance.
Optionally, the first end of the output capacitance is additionally coupled to power supply interface, to be powered to the mobile terminal system.
Optionally, the charging circuit 690 also includes：4th metal-oxide-semiconductor, the drain electrode of the 4th metal-oxide-semiconductor are connected to described
The first end of output capacitance, the source electrode of the 4th metal-oxide-semiconductor are used to be connected to the battery；3rd control module, the described 3rd
The input of control module is connected to the 3rd total output end of the handover module, the output end connection of the 3rd control module
To the gate pole of the 4th metal-oxide-semiconductor, for controlling the 4th metal-oxide-semiconductor on or off.
Optionally, the second of the handover module total output end includes multiple output ends, and the low pressure charging module includes：
5th metal-oxide-semiconductor, the source electrode of the 5th metal-oxide-semiconductor are connected to the charging inlet；3rd diode, the 3rd diode is just
Pole is connected to the source electrode of the 5th metal-oxide-semiconductor, and the negative pole of the 3rd diode is connected to the drain electrode of the 5th metal-oxide-semiconductor；The
Four control modules, the input of the 4th control module is connected to the first output end in described second total output end, described
The output end of 4th control module is connected to the gate pole of the 5th metal-oxide-semiconductor, for controlling the 5th metal-oxide-semiconductor to turn on or cutting
Only；6th metal-oxide-semiconductor, the drain electrode of the 6th metal-oxide-semiconductor are connected to the drain electrode of the 5th metal-oxide-semiconductor, the source electrode of the 6th metal-oxide-semiconductor
For being connected to the battery；4th diode, the positive pole of the 4th diode are connected to the source electrode of the 6th metal-oxide-semiconductor,
The negative pole of 4th diode is connected to the drain electrode of the 6th metal-oxide-semiconductor；5th control module, the 5th control module
Input is connected to the second output end in described second total output end, and the output end of the 5th control module is connected to described
The gate pole of 6th metal-oxide-semiconductor, for controlling the 6th metal-oxide-semiconductor on or off.
Optionally, the 5th metal-oxide-semiconductor and first metal-oxide-semiconductor are same metal-oxide-semiconductor, the 3rd diode with it is described
First diode is same diode, and first control module and the 4th control module are same control module.
Optionally, the handover module is connected to the controller via IIC interfaces or SPI interface.
Optionally, the external communication interface is USB interface or TYPE-C interfaces.
Wherein, input block 630 can be used for the numeral or character information for receiving user's input, and generation and mobile terminal
The signal input that 600 user is set and function control is relevant.Specifically, in the utility model embodiment, the input block
630 can include contact panel 631.Contact panel 631, also referred to as touch-screen, collect touch of the user on or near it
Operation (for example user uses the operations of any suitable object or annex on contact panel 631 such as finger, stylus), and according to
Formula set in advance drives corresponding attachment means.Optionally, contact panel 631 may include touch detecting apparatus and touch to control
Two parts of device processed.Wherein, the touch orientation of touch detecting apparatus detection user, and the signal that touch operation is brought is detected, will
Signal sends touch controller to；Touch controller receives touch information from touch detecting apparatus, and is converted into contact
Coordinate, then give the processor 650, and the order sent of reception processing device 650 and can be performed.Furthermore, it is possible to using electricity
The polytypes such as resistive, condenser type, infrared ray and surface acoustic wave realize contact panel 631.Except contact panel 631, input
Unit 630 can also include other input equipments 632, and other input equipments 632 can include but is not limited to physical keyboard, function
One or more in key (such as volume control button, switch key etc.), trace ball, mouse, action bars etc..
Wherein, display unit 640 can be used for display by the information of user's input or be supplied to information and the movement of user
The various menu interfaces of terminal 600.Display unit 640 may include display panel 641, optionally, can use LCD or organic hairs
The forms such as optical diode (Organic Light-Emitting Diode, OLED) configure display panel 641.
It should be noted that contact panel 631 can cover display panel 641, touch display screen is formed, when the touch display screen is examined
After measuring the touch operation on or near it, processor 650 is sent to determine the type of touch event, is followed by subsequent processing device
650 provide corresponding visual output according to the type of touch event in touch display screen.
Touch display screen includes Application Program Interface viewing area and conventional control viewing area.The Application Program Interface viewing area
And arrangement mode of the conventional control viewing area does not limit, can be arranged above and below, left-right situs etc. can distinguish two it is aobvious
Show the arrangement mode in area.The Application Program Interface viewing area is displayed for the interface of application program.Each interface can be with
The interface element such as the icon comprising at least one application program and/or widget desktop controls.The Application Program Interface viewing area
It can also be the empty interface not comprising any content.The conventional control viewing area is used to show the higher control of utilization rate, for example,
Application icons such as settings button, interface numbering, scroll bar, phone directory icon etc..
Wherein processor 650 is the control centre of mobile terminal 600, utilizes various interfaces and connection whole mobile phone
Various pieces, by running or performing the software program and/or module that are stored in first memory 621, and call storage
Data in second memory 622, the various functions and processing data of mobile terminal 600 are performed, so as to mobile terminal 600
Carry out integral monitoring.Optionally, processor 650 may include one or more processing units.
Mobile terminal can include：Mobile phone, tablet personal computer, E-book reader, MP3 player, MP4 players, number
At least one of in camera, pocket computer on knee, vehicle-mounted computer, wearable device.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be wanted with right
The protection domain asked is defined.
Claims (10)
- A kind of 1. charging circuit, applied to mobile terminal, it is characterised in that including：High-voltage charging module, the first end of the high-voltage charging module are connected to charging inlet, and the of the high-voltage charging module Two ends are used to be connected to battery；Low pressure charging module, the first end of the low pressure charging module are connected to the charging inlet, the low pressure charging module The second end be used for be connected to the battery, wherein, the charging voltage of the low pressure charging module is less than the high-voltage charging mould The charging voltage of block；Handover module, first total output end of the handover module is connected to the controlled end of the high-voltage charging module, described to cut Second total output end of mold changing block is connected to the controlled end of the low pressure charging module；Controller, the externally connected communication interface of first end of the controller, with via the external communication interface and charging Device, which is established, to be communicated to connect and obtains the type of charger, and the second end of the controller is connected to the controlled of the handover module End, control instruction is sent to the handover module with the type according to charger, the handover module is used for according to the control Instruction turns on the high-voltage charging module or the low pressure charging module.
- 2. charging circuit according to claim 1, it is characterised in that first total output end of the handover module includes more Individual output end, the high-voltage charging module include：First metal-oxide-semiconductor, the source electrode of first metal-oxide-semiconductor are connected to the charging inlet；First diode, the positive pole of first diode are connected to the source electrode of first metal-oxide-semiconductor, first diode Negative pole is connected to the drain electrode of first metal-oxide-semiconductor；First control module, the input of first control module are connected to the first output in described first total output end End, the output end of first control module is connected to the gate pole of first metal-oxide-semiconductor, for controlling first metal-oxide-semiconductor to lead Logical or cut-off；Voltage transformation module, the first end of the voltage transformation module are connected to the drain electrode of first metal-oxide-semiconductor, and the voltage turns Second end of mold changing block is used to be connected to the battery；Output capacitance, the first end of the output capacitance are connected to the second end of the voltage transformation module, the output capacitance The second end ground connection, the cell parallel is at the both ends of the output capacitance.
- 3. charging circuit according to claim 2, it is characterised in that the voltage transformation module includes：Second metal-oxide-semiconductor, the drain electrode of second metal-oxide-semiconductor are connected to the drain electrode of first metal-oxide-semiconductor；Second diode, the positive pole of second diode are connected to the source electrode of second metal-oxide-semiconductor, second diode Negative pole is connected to the drain electrode of second metal-oxide-semiconductor；Second control module, the input of second control module are connected to the second output in described first total output end End, the first output end of second control module is connected to the gate pole of second metal-oxide-semiconductor, for controlling the 2nd MOS Pipe on or off；3rd metal-oxide-semiconductor, the gate pole of the 3rd metal-oxide-semiconductor are connected to the second output end of second control module, and the described 3rd The source ground of metal-oxide-semiconductor, the drain electrode of the 3rd metal-oxide-semiconductor are connected to the source electrode of second metal-oxide-semiconductor；Inductance, the first end of the inductance are connected to the source electrode of second metal-oxide-semiconductor, and the second end of the inductance is connected to described The first end of output capacitance.
- 4. charging circuit according to claim 2, it is characterised in that the first end of the output capacitance is additionally coupled to power Interface, to be powered to the mobile terminal system.
- 5. charging circuit according to claim 4, it is characterised in that the charging circuit also includes：4th metal-oxide-semiconductor, the drain electrode of the 4th metal-oxide-semiconductor are connected to the first end of the output capacitance, the source of the 4th metal-oxide-semiconductor Pole is used to be connected to the battery；3rd control module, the input of the 3rd control module are connected to the 3rd total output end of the handover module, institute The output end for stating the 3rd control module is connected to the gate pole of the 4th metal-oxide-semiconductor, for controlling the 4th metal-oxide-semiconductor to turn on or cutting Only.
- 6. according to the charging circuit any one of claim 2-5, it is characterised in that the second of the handover module is total defeated Going out end includes multiple output ends, and the low pressure charging module includes：5th metal-oxide-semiconductor, the source electrode of the 5th metal-oxide-semiconductor are connected to the charging inlet；3rd diode, the positive pole of the 3rd diode are connected to the source electrode of the 5th metal-oxide-semiconductor, the 3rd diode Negative pole is connected to the drain electrode of the 5th metal-oxide-semiconductor；4th control module, the input of the 4th control module are connected to the first output in described second total output end End, the output end of the 4th control module is connected to the gate pole of the 5th metal-oxide-semiconductor, for controlling the 5th metal-oxide-semiconductor to lead Logical or cut-off；6th metal-oxide-semiconductor, the drain electrode of the 6th metal-oxide-semiconductor are connected to the drain electrode of the 5th metal-oxide-semiconductor, the source of the 6th metal-oxide-semiconductor Pole is used to be connected to the battery；4th diode, the positive pole of the 4th diode are connected to the source electrode of the 6th metal-oxide-semiconductor, the 4th diode Negative pole is connected to the drain electrode of the 6th metal-oxide-semiconductor；5th control module, the input of the 5th control module are connected to the second output in described second total output end End, the output end of the 5th control module is connected to the gate pole of the 6th metal-oxide-semiconductor, for controlling the 6th metal-oxide-semiconductor to lead Logical or cut-off.
- 7. charging circuit according to claim 6, it is characterised in that the 5th metal-oxide-semiconductor and first metal-oxide-semiconductor are same One metal-oxide-semiconductor, the 3rd diode and first diode are same diode, first control module with it is described 4th control module is same control module.
- 8. according to the charging circuit any one of claim 1-5, it is characterised in that the handover module connects via IIC Mouth or SPI interface are connected to the controller.
- 9. according to the charging circuit any one of claim 1-5, it is characterised in that the external communication interface is USB Interface or TYPE-C interfaces.
- 10. a kind of mobile terminal, it is characterised in that including the charging circuit any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720613539.3U CN206878505U (en) | 2017-05-27 | 2017-05-27 | A kind of charging circuit and mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720613539.3U CN206878505U (en) | 2017-05-27 | 2017-05-27 | A kind of charging circuit and mobile terminal |
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| CN206878505U true CN206878505U (en) | 2018-01-12 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109713746A (en) * | 2018-12-19 | 2019-05-03 | 努比亚技术有限公司 | A kind of charging circuit and charge control method, mobile terminal |
| CN111614149A (en) * | 2019-02-22 | 2020-09-01 | 欧若拉飞行科学公司 | Method for connecting battery pack to external bus and multifunctional battery switch |
| CN111722141A (en) * | 2020-06-30 | 2020-09-29 | 深圳市华美兴泰科技股份有限公司 | Programmable charge-discharge tester with quick charge protocol |
| WO2022061677A1 (en) * | 2020-09-24 | 2022-03-31 | 深圳市大疆创新科技有限公司 | Charing control method and circuit, device, and storage medium |
-
2017
- 2017-05-27 CN CN201720613539.3U patent/CN206878505U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109713746A (en) * | 2018-12-19 | 2019-05-03 | 努比亚技术有限公司 | A kind of charging circuit and charge control method, mobile terminal |
| CN111614149A (en) * | 2019-02-22 | 2020-09-01 | 欧若拉飞行科学公司 | Method for connecting battery pack to external bus and multifunctional battery switch |
| CN111722141A (en) * | 2020-06-30 | 2020-09-29 | 深圳市华美兴泰科技股份有限公司 | Programmable charge-discharge tester with quick charge protocol |
| WO2022061677A1 (en) * | 2020-09-24 | 2022-03-31 | 深圳市大疆创新科技有限公司 | Charing control method and circuit, device, and storage medium |
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