CN106684978A - Charging circuit, charging control method of charging circuit, and terminal - Google Patents

Charging circuit, charging control method of charging circuit, and terminal Download PDF

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Publication number
CN106684978A
CN106684978A CN201611179248.4A CN201611179248A CN106684978A CN 106684978 A CN106684978 A CN 106684978A CN 201611179248 A CN201611179248 A CN 201611179248A CN 106684978 A CN106684978 A CN 106684978A
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CN
China
Prior art keywords
circuit
controlling switch
input
charger
output end
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611179248.4A
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Chinese (zh)
Inventor
涂瑞
高思
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Original Assignee
Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yulong Computer Telecommunication Scientific Shenzhen Co Ltd filed Critical Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Priority to CN201611179248.4A priority Critical patent/CN106684978A/en
Publication of CN106684978A publication Critical patent/CN106684978A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44Methods for charging or discharging
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007Regulation of charging or discharging current or voltage
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The invention discloses a charging circuit, a charging control method of the charging circuit, and a terminal. The input end of a power input circuit is connected with the output end of a charger, and the output end of the power input circuit is connected with a control switch. The output ends of a step-down processing circuit and a direct circuit are connected with a to-be-charged battery. A controller makes the control switch connect the output end of the power input circuit to the input end of the direct circuit or the input end of the step-down processing circuit according to the current charging mode of the charger, namely, the controller can select a corresponding charging path to charge a terminal according to the charging mode of the charger. Compared with the prior art in which a terminal only supports a fixed kind of charger, the scheme provided by the invention enables a terminal to be compatible with a variety of chargers needing internal step-down processing and a variety of chargers not needing internal step-down processing, and enhances the satisfaction degree of user experience.

Description

A kind of charging circuit, the charge control method of charging circuit and terminal
Technical field
The present invention relates to electronic circuit technology field, more particularly to a kind of charging circuit, the charge control side of charging circuit Method and terminal.
Background technology
With the continuous progress of science and technology, the use of terminal is increasingly popularized, therefore, the charging problems of terminal are increasingly becoming Provider terminal issues that need special attention.Current has various charge modes on the market, it may for example comprise low-pressure direct mold filling Formula, normal charging mode and high pressure trickle charge pattern.But a kind of terminal can only often support that one kind is filled in the prior art Power mode, therefore the terminal also can only just use charger corresponding with the charge mode of terminal support to fill the terminal Electricity, it is difficult to which compatibility uses the charger of other charge modes.That is to say when a certain terminal supports low-pressure direct mold filling formula, can only make The terminal is charged with the charger using low-pressure direct mold filling formula, it is impossible to use the charger pair using other charge modes The terminal is charged, for example, can not be charged using the charger using normal charging mode, is adopted because terminal is incompatible With the charger of other charge modes, the dependency degree for so allowing for terminal-pair its corresponding charger is very high, when its is corresponding Charger must also buy corresponding charger when damaging, and have impact on Consumer's Experience.
The content of the invention
The embodiment of the present invention provides a kind of charging circuit, the charge control method of charging circuit and terminal, existing to solve Terminal can only support a kind of charger of charge mode of fixation in technology, it is impossible to the skill of the charger of compatible various charge modes Art problem.
In order to solve the above technical problems, the embodiment of the present invention uses following technical scheme:
A kind of charging circuit, including:Power supply input circuit, step-down process circuit, direct circuit, controlling switch and control Device;The input of the power supply input circuit is connected with charger output end, and output end is connected with the controlling switch;The drop The output end of pressure process circuit and the direct circuit is connected with battery to be charged respectively;The controller is used to be filled according to The currently employed charge mode of electrical equipment controls the controlling switch by the output end of the power supply input circuit and the straight-through electricity The input of the input on road or the step-down process circuit is connected.
Further, it is low-pressure direct mold filling formula that the controller is used in the currently employed charge mode of the charger When, control the controlling switch that the output end of the power supply input circuit is connected with the input of the direct circuit, in institute When stating the currently employed charge mode of charger for normal charging mode or high pressure trickle charge pattern, the control is controlled to open Close and the output end of the power supply input circuit is connected with the input of the step-down process circuit.
Further, the power supply input circuit is that cable power is input into sub-circuit;The cable power is input into sub-circuit Input be used for be connected with the output end of wired charger, output end is connected with the controlling switch;The controller is used for Control the controlling switch that the cable power is input into sub-circuit according to the currently employed charge mode of the wired charger The input of output end and the direct circuit or the input of the step-down process circuit connect.
Further, the power supply input circuit is that radio source is input into sub-circuit;The radio source is input into sub-circuit Output end be connected with the controlling switch, input be used for be connected with wireless charger acquisition electric current and pass through output end it is defeated Go out;The controller is used to control the controlling switch by the nothing according to the currently employed charge mode of the wireless charger The output end of line power input sub-circuit is connected with the input of the input of the direct circuit or the step-down process circuit.
Further, the power supply input circuit includes wired power input sub-circuit and radio source input sub-circuit; The controlling switch includes the first controlling switch, the second controlling switch, the 3rd controlling switch and the 4th controlling switch;It is described to have The input of line power input sub-circuit is used to be connected with the output end of wired charger, output end and first controlling switch The connection of the first connection end, the first connection end of the second connection end of first controlling switch and the 4th controlling switch connects Connect, the second connection end of the 4th controlling switch is connected with the input of the step-down process circuit;The radio source is defeated Entering the input of sub-circuit is used to obtain electric current, the first connection end of output end and second controlling switch from wireless charger Connection, the second connection end of second controlling switch is connected with the input of the direct circuit;3rd controlling switch The first connection end be connected with the second connection end of first controlling switch, the second connection end of the 3rd controlling switch with The first connection end connection of second controlling switch.
Further, the controller is used for input and wired charger in cable power input sub-circuit When output end is connected, the first controlling switch closure is controlled, institute is controlled according to the current charge mode of the wired charger The second controlling switch and the 3rd controlling switch closure are stated, the 4th controlling switch disconnects, or control second control Switch and the 3rd controlling switch disconnect, the 4th controlling switch closure;The controller is used in the radio source When the input for being input into sub-circuit is connected acquisition electric current with wireless charger, first controlling switch is controlled to disconnect, according to institute State the current charge mode of wireless charger and control the second controlling switch closure, the 3rd controlling switch disconnects, or control Make second controlling switch to disconnect, the 3rd controlling switch and the 4th controlling switch are closed.
A kind of terminal, including terminal body and above-mentioned any one charging circuit, the charging circuit are arranged at described In terminal body.
A kind of charge control method of any one charging circuit as described above, including:The controller is obtained currently and institute State the charge mode that the charger of power supply input circuit connection is used;The controller controls the control according to the charge mode System switch is defeated by the input of the output end of the power supply input circuit and the direct circuit or the step-down process circuit Enter termination logical.
Further, the controller controls the controlling switch by the power supply input circuit according to the charge mode The input of output end and the direct circuit or the input of the step-down process circuit connect and include:In the charger When currently employed charge mode is low-pressure direct mold filling formula, the controlling switch is controlled by the output end of the power supply input circuit Input with the direct circuit is connected;It is normal charging mode or high pressure in the currently employed charge mode of the charger During trickle charge pattern, the controlling switch is controlled by the output end of the power supply input circuit and the step-down process circuit Input connect.
Further, when the power supply input circuit includes wired power input sub-circuit and radio source input son electricity Road, the controlling switch includes the first controlling switch, the second controlling switch, the 3rd controlling switch and the 4th controlling switch, institute State cable power input sub-circuit and radio source input sub-circuit is connected respectively at wired charger and wireless charger simultaneously When, methods described also includes:The controller is in the charge mode that the wired charger is used for charge mode is commonly to fill When the charge mode that power mode or high pressure trickle charge pattern and the wireless charger are used is low-pressure direct mold filling formula, control Make first controlling switch, the second controlling switch, the 4th controlling switch to close, the 3rd controlling switch disconnects.
A kind of charging circuit, the charge control method of charging circuit and terminal that the present invention is provided, by by power input The input of circuit is connected with charger output end, output end is connected with controlling switch, step-down process circuit and direct circuit Output end is connected with battery to be charged respectively;Controller controls controlling switch by electricity according to the currently employed charge mode of charger The output end of source input circuit is connected with the input of the input of direct circuit or step-down process circuit, namely controller energy root The charge mode used according to charger selects corresponding charge path to charge terminal, enables the terminals to compatible various needs The charger of internal step-down treatment is carried out, and the various chargers that need not carry out internal step-down treatment, improve user's body The satisfaction tested.
Further, it is interior due to that need not carry out when the currently employed charge mode of charger is low-pressure direct mold filling formula Portion step-down treatment, so control controlling switch connects the input of the output end of power supply input circuit and direct circuit, when filling When the currently employed charge mode of electrical equipment is normal charging mode or high pressure trickle charge pattern, due to needing to carry out internal drop Pressure treatment, so now control controlling switch connects the output end of power supply input circuit with the input of step-down process circuit, Compared in the prior art, terminal can only support that a kind of scheme of charger of fixation, the scheme that the present invention is provided can make end End is while compatibility uses charger, the charger of normal charging mode and the high pressure trickle charge pattern of low-pressure direct mold filling formula Charger, so as to make user obtain preferably experience.
Brief description of the drawings
Fig. 1 is the schematic block diagram of the charging circuit that the embodiment of the present invention one is provided;
Fig. 2 is the first circuit diagram of the charging circuit that the embodiment of the present invention one is provided;
Fig. 3 is the second circuit schematic diagram of the charging circuit that the embodiment of the present invention one is provided;
Fig. 4 is the tertiary circuit schematic diagram of the charging circuit that the embodiment of the present invention one is provided;
Fig. 5 is the circuit diagram of the charging circuit that the embodiment of the present invention two is provided;
Fig. 6 is the schematic flow sheet of the charge control method of the charging circuit that the embodiment of the present invention three is provided;
Fig. 7 is the structural representation of the terminal that the embodiment of the present invention four is provided.
Specific embodiment
The present invention is applied to all terminals, including such as mobile phone, PAD etc..Below by specific embodiment combination accompanying drawing pair The present invention is described in further detail.
Embodiment one:
The present embodiment provides a kind of charging circuit 10, shown in Figure 1, and Fig. 1 is the charging in the embodiment of the present invention one The schematic block diagram of circuit 10, including power supply input circuit 11, step-down process circuit 12, direct circuit 13, the and of controlling switch 14 Controller 15, wherein, the input of power supply input circuit 11 is connected with charger output end, and output end connects with controlling switch 14 Connect;The output end of step-down process circuit 12 and direct circuit 13 is connected with battery to be charged 16 respectively.
It should be appreciated that shown in Figure 2, the controlling switch 14 in the present embodiment can be by two common single controls Switch 21 is constituted, and shown in Figure 3, the controlling switch 14 in the present embodiment can also be by a common double control switch 31 Composition, of courses, and the controlling switch 14 in the present embodiment can also be made up of other electronic devices with switch control functions, Such as MOS (metal oxide semiconductor, metal-oxide semiconductor (MOS)) FET, triode etc..This implementation Step-down process circuit 12 in example can be the circuit for arbitrarily realizing voltage conversion, for the output to power supply input circuit 11 Holding the voltage of output carries out step-down treatment, is charged with treating rechargable battery 16 under the premise that security is guaranteed.In the present embodiment Direct circuit 13 can be arbitrarily not comprising voltage conversion function circuit.
Controller 15 in the present embodiment is used for will according to the currently employed charge mode control controlling switch 14 of charger The output end of power supply input circuit 11 is connected with the input of the input of direct circuit 13 or step-down process circuit 12.
It should be noted that the currently employed charge mode of charger in the present embodiment includes low-pressure direct mold filling formula, general Logical charge mode and high pressure trickle charge pattern.Wherein low-pressure direct mold filling formula can include the low-voltage, high-current side of filling soon of MTK Case, such as PE3.0 agreements charging scheme, it is, of course, also possible to straight fill scheme, TI and directly fill scheme or OPPO including dimension on the market is general VOOC dodge fill scheme etc.;Normal charging mode in the present embodiment can include the BC1.2 agreements charging side for using on the market Case;High pressure trickle charge pattern in the present embodiment can soon fill scheme including high pass, such as QC2.0 agreements charging scheme, QC3.0 agreement charging schemes, it is, of course, also possible to the high pressure low current including MTK fills scheme, such as PE2.0 agreements charging scheme soon.
When the currently employed charge mode of the charger in the present embodiment is low-pressure direct mold filling formula, the control in the present embodiment Device processed 15 controls controlling switch 14 to connect the input of the output end of power supply input circuit 11 and direct circuit 13, when this implementation When the currently employed charge mode of charger in example is normal charging mode or high pressure trickle charge pattern, in the present embodiment Controller 15 control controlling switch 14 by the output end of power supply input circuit 11 with step-down process circuit 12 input connect.
In addition it is also necessary to explanation, the power supply input circuit 11 in the present embodiment can be cable power input son electricity Road, or for radio source is input into sub-circuit, or can simultaneously include that wired power input sub-circuit and radio source are input into Sub-circuit.
When the power supply input circuit 11 in the present embodiment is that cable power is input into sub-circuit, the wired electricity in the present embodiment The input of source input sub-circuit is used to be connected with the output end of wired charger, and output end is connected with controlling switch 14;Control Device 15 is used to that cable power to be input into sub-circuit according to wired charger currently employed charge mode control controlling switch 14 Output end is connected with the input of direct circuit 13 or the input of step-down process circuit 12.Now, controller 15 is specifically controlled Content processed can be:When the currently employed charge mode of the wired charger in the present embodiment is low-pressure direct mold filling formula, this reality Apply the control controlling switch 14 of controller 15 in example and cable power is input into the output end of sub-circuit and the input of direct circuit 13 Termination is logical, when the currently employed charge mode of the wired charger in the present embodiment is that normal charging mode or high pressure low current fill During power mode, cable power is input into the control controlling switch 14 of controller 15 in the present embodiment output end and the step-down of sub-circuit The input of process circuit 12 is connected.
Here, it should be noted that can be by using each mode specified in existing each charge mode correspondence agreement The currently employed charge mode of identification wired charger, for example, when a terminal is by USB (Universal Serial Bus, string Row bus) when being connected with wired charger, wired charger can be based on its corresponding association of currently employed charge mode to interface View, carries out data interaction, when the terminal knows the charging mould that the wired charger is used by USB interface and the terminal handler After formula, controller 15 controls the disconnection of controlling switch 14 or closes to carry out the selection of charge path.
When the power supply input circuit 11 in the present embodiment is that radio source is input into sub-circuit, the radio in the present embodiment The output end of source input sub-circuit is connected with controlling switch 14, and input is used to be connected acquisition electric current with wireless charger and pass through Output end is exported;Controller 15 is used to control controlling switch 14 by radio according to the currently employed charge mode of wireless charger The output end of source input sub-circuit is connected with the input of the input of direct circuit 13 or step-down process circuit 12.Now, control The specific control content of device processed 15 can be:When the currently employed charge mode of the wireless charger in the present embodiment is low-pressure direct During mold filling formula, radio source is input into the output end of sub-circuit and led directly to by the control controlling switch 14 of controller 15 in the present embodiment The input of circuit 13 is connected, when the currently employed charge mode of the wireless charger in the present embodiment be normal charging mode or During high pressure trickle charge pattern, radio source is input into sub-circuit by the control controlling switch 14 of controller 15 in the present embodiment Output end is connected with the input of step-down process circuit 12.
It should be appreciated that the electricity that the radio source input sub-circuit in the present embodiment will can be obtained from wireless charger Stream carries out rectification, filtering, voltage stabilizing treatment, therefore, the voltage from the output end output of radio source output sub-circuit can be just One voltage of stabilization.Additionally, it should be understood that, can be defeated by obtaining radio source input sub-circuit in the present embodiment Go out the output voltage at end, the currently employed charge mode of wireless charger, Huo Zheye are judged according to the output voltage for getting The information exchange of wireless charger and terminal control unit 15 can be realized based on radio communication, determines that wireless charger is worked as with this The charge mode of preceding use.
When simultaneously the power supply input circuit 11 in the present embodiment includes that wired power input sub-circuit and radio source are input into Shown in Figure 4 during sub-circuit, the controlling switch in the present embodiment can just include that the first controlling switch 141, second is controlled Switch the 142, the 3rd controlling switch 143 and the 4th controlling switch 144.
Now, the input of the cable power input sub-circuit 111 in the present embodiment is used for the output with wired charger End connection, output end is connected with the first connection end of the first controlling switch 141, the second connection end of the first controlling switch 141 and The first connection end connection of the 4th controlling switch 144, the second connection end and the step-down process circuit 12 of the 4th controlling switch 144 Input is connected;The input of the radio source input sub-circuit 112 in the present embodiment is used to obtain electric current from wireless charger, Output end is connected with the first connection end of the second controlling switch 142, and the second connection end of the second controlling switch 142 is straight-through with described The input connection of circuit 13;First connection end of the 3rd controlling switch 143 in the present embodiment and the first controlling switch 141 Second connection end connects, and the second connection end of the 3rd controlling switch 143 is connected with the first connection end of the second controlling switch 142.
Be described above includes that wired power input sub-circuit 111 and radio source are input into simultaneously in power supply input circuit 11 The physical couplings of charging circuit 10 during sub-circuit 112, below based on the physical couplings to the charging circuit 10 not Illustrated with the charge path selected under charge mode.
Controller 15 in the present embodiment can be used for the input and wired charging in cable power input sub-circuit 111 When the output end of device is connected, the first controlling switch 141 of control is closed, according to the current charge mode control second of wired charger The controlling switch 143 of controlling switch 142 and the 3rd is closed, and the 4th controlling switch 144 disconnects, or the control He of the second controlling switch 142 3rd controlling switch 143 is disconnected, and the 4th controlling switch 144 is closed;It can be specifically the charging mould used in wired charger When formula is low-pressure direct mold filling formula, controller 15 controls the second controlling switch 142 and the 3rd controlling switch 143 to close, the 4th control Switch 144 disconnects;When the charge mode that wired charger is used is for normal charging mode or high pressure trickle charge pattern, control Device processed 15 controls the second controlling switch 142 and the 3rd controlling switch 143 to disconnect, and the 4th controlling switch 144 is closed.
Meanwhile, the controller 15 in the present embodiment be additionally operable to radio source input sub-circuit 112 input with it is wireless When charger connection obtains electric current, the first controlling switch 141 of control disconnects, according to the current charge mode control of wireless charger Second controlling switch 142 is closed, and the 3rd controlling switch 143 disconnects, or the second controlling switch 142 of control disconnects, and the 3rd control is opened The controlling switch 144 of pass 143 and the 4th is closed;Can be specifically that the charge mode used in wireless charger is low-pressure direct mold filling During formula, controller 15 controls the second controlling switch 142 to close, and the 3rd controlling switch 143 disconnects;In filling that wireless charger is used When power mode is normal charging mode or high pressure trickle charge pattern, controller 15 controls the second controlling switch 142 to disconnect, the Three controlling switches 143 and the 4th controlling switch 144 are closed.
Finally, in addition it is also necessary to explanation, when cable power is input into sub-circuit 111 and radio source 112 points of sub-circuit of input When not being connected with wired charger and wireless charger not simultaneously, the controller 15 in the present embodiment is additionally operable in wired charger Charge mode is normal charging mode or high pressure trickle charge pattern, and the charge mode that wireless charger is used is low-pressure direct During mold filling formula, the first controlling switch 141 of control, the second controlling switch 142, the 4th controlling switch 144 are closed, the 3rd controlling switch 143 disconnect.
The charging circuit provided by the present embodiment, the charge mode selection that controller can be used according to charger is corresponding Charge path charges with to terminal, can make the compatible various chargers of the terminal comprising the charging circuit, improves user The satisfaction of experience.
Embodiment two:
In order to be better understood from the present invention, the present embodiment provides a kind of more specific charging circuit, refers to Fig. 5 institutes Show, the charging circuit that the present embodiment is provided includes wired power input sub-circuit 111, radio source input sub-circuit 112, wired Charging process circuit (Charger) 53, direct circuit 13, the first controlling switch group, the second controlling switch group and the 3rd control are opened Pass group and controller, wherein being wirelessly input to sub-circuit 112 includes coil 51 and wireless charging process circuit (Wireless Charger) 52, the controlling switch group in the present embodiment is made up of metal-oxide-semiconductor field effect transistor.
The first controlling switch group in the present embodiment is leaned against by two P-channel metal-oxide-semiconductor field effect transistors (hereinafter referred to as PMOS) Back of the body connection composition, the two PMOSs are the first PMOS and the second PMOS, and cable power is input into the output end of sub-circuit 111 Drain electrode with the first PMOS is connected, the source electrode of the first PMOS (hereinafter referred to as Q1) and the second PMOS (hereinafter referred to as Q2) Source electrode is connected, by the first control end so as to the voltage between the source electrode and grid that control Q1 and Q2, so as to control the Q1 to be with Q2 Be on or cut-off state, namely the first controlling switch group for controlling to be made up of Q1 and Q2 by the first control end disconnection Or close.Likewise, the second controlling switch group in the present embodiment is also connected and constituted back-to-back by two PMOSs, the two PMOS is the 3rd PMOS and the 4th PMOS, and the output end of wireless charging process circuit 52 is (simple below with the 3rd PMOS Claim Q3) drain electrode connection, the source electrode of Q3 is connected with the source electrode of the 4th PMOS (hereinafter referred to as Q4), the drain electrode of Q4 and direct circuit 13 input connection, the output end of direct circuit 13 is connected with battery to be charged 16, and the controller in the present embodiment can lead to Cross the disconnection or closing of the 3rd controlling switch group that the control of the second control end is made up of Q3 and Q4.The 3rd control in the present embodiment Switches set processed is a N-channel FET (hereinafter referred to as Q5), the drain electrode of Q5 in the present embodiment and the drain electrode of Q2 and is had The input of line charging process circuit 53 is connected, in the present embodiment the output end of the source electrode of Q5 and wireless charging process circuit 52 with And the drain electrode of Q3 is connected, and the disconnection or closing of Q3 namely the 3rd controlling switch group are controlled by the 3rd control end.
It should be noted that the wired charging process circuit 53 in the present embodiment can realize switch control functions and step-down Processing function, and when the voltage of input input is relatively low, such as when the charge mode that charger is used is for low-pressure direct mold filling formula, The voltage directly can be conveyed to battery to be charged by the voltage of input input by direct circuit, due in the present embodiment Direct circuit will not carry out step-down treatment to the voltage for conveying, namely the voltage lost on direct circuit can be smaller, so Also rechargeable battery can be just treated to be charged
Controller in the present embodiment can be used for being connected with wired charger in cable power input sub-circuit 111, nothing Line power input sub-circuit 112 is not connected with wireless charger, and the charge mode that wired charger is used is for low-pressure direct fills During pattern, the first controlling switch group being made up of Q1 and Q2 is controlled to close by the first control end, wired charging process circuit 53 Due to itself having switch control functions, therefore the circuit where itself is disconnected, while the controller in the present embodiment passes through The control of second control end is closed by the second controlling switch group that Q3 and Q4 are constituted, and controls Q5 to turn on by the 3rd control end, namely The 3rd controlling switch group is controlled to close;If the charge mode that wired charger is used is normal charging mode or high pressure low current filling Power mode, then control the second controlling switch group being made up of Q3 and Q4 to disconnect, by the 3rd control end control by the second control end Q5 cut-offs processed, namely the 3rd controlling switch group of control disconnects, the first control for controlling to be made up of Q1 and Q2 by the first control end Switches set is closed, and circuit closure where wired charging process circuit 53 control itself.
Controller in the present embodiment can be also used for being connected with wireless charger in radio source input sub-circuit 112, Cable power input sub-circuit 111 is not connected with wired charger, and the charge mode that wireless charger is used is low-pressure direct During mold filling formula, the first controlling switch group being made up of Q1 and Q2 is controlled to disconnect by the first control end, by the second control end control Make the second controlling switch group being made up of Q3 and Q4 to close, control Q5 to end by the 3rd control end, namely control the 3rd is controlled Switches set disconnects;If the charge mode that wireless charger is used is normal charging mode or high pressure trickle charge pattern, lead to Cross the control of the first control end to be disconnected by the first controlling switch group that Q1 and Q2 are constituted, and controlled by Q3 and Q4 by the second control end Second controlling switch group of composition disconnects, and controls Q5 to turn on by the 3rd control end, wired control of charging process circuit 53 itself The circuit closure at place.
When cable power be input into sub-circuit 111 and radio source input sub-circuit 112 respectively and meanwhile with wired charger and When wireless charger is connected, the controller in the present embodiment can be also used for the charge mode used in wired charger to charge Pattern is that the charge mode that normal charging mode or high pressure trickle charge pattern and wireless charger are used is low-pressure direct mold filling During formula, by the first control end, the second control end and control respectively the first controlling switch group, the second controlling switch group close, lead to Crossing the 3rd control end controls the 3rd controlling switch group to disconnect, while circuit where wired charging process circuit 53 control itself is closed Close.
The charging circuit provided by the present embodiment, the charge mode selection that controller can be used according to charger is corresponding Charge path charges with to terminal, the terminal comprising the charging circuit can be made compatible using various different charge modes Charger, such that it is able to make user obtain preferably experience.
Embodiment three:
The present embodiment is based on above-mentioned charging circuit and provides a kind of charge control method of charging circuit, refers to Fig. 6 institutes Show, the charge control method that the present embodiment is provided includes:
S601:Controller obtains the charge mode that the charger being currently connected with power supply input circuit is used.
It should be appreciated that the power supply input circuit in the present embodiment can be input into sub-circuit for cable power, it is now right The charger answered is wired charger;Power supply input circuit in the present embodiment can also be input into sub-circuit for radio source, this When corresponding charger be wireless charger;Certainly, the power supply input circuit in the present embodiment can simultaneously include cable power Input sub-circuit and radio source input sub-circuit, now, both distinguish corresponding charger for wired charger and wireless charging Electrical equipment.
When the power supply input circuit in the present embodiment is that cable power is input into sub-circuit, can be by using existing each Each mode specified in charge mode correspondence agreement recognizes the currently employed charge mode of wired charger.When in the present embodiment When power supply input circuit is that radio source is input into sub-circuit, the charging circuit can be first disconnected, nothing is then obtained by controller The output voltage of line power input sub-circuit output end, judges wireless charger currently employed according to the output voltage for getting Charge mode, or the information exchange of wireless charger and controller can also be realized based on radio communication, determined with this The currently employed charge mode of wireless charger.
S602:Controller controls controlling switch by the output end of power supply input circuit and direct circuit according to charge mode The input of input or step-down process circuit is connected.
It should be noted that when the currently employed charge mode of charger is low-pressure direct mold filling formula, controller control control System switch connects the input of the output end of power supply input circuit and direct circuit;In the currently employed charge mode of charger During for normal charging mode or high pressure trickle charge pattern, controller controls controlling switch by the output end of power supply input circuit Input with step-down process circuit is connected.
When power supply input circuit includes wired power input sub-circuit and radio source input sub-circuit, controlling switch includes When the first controlling switch, the second controlling switch, the 3rd controlling switch and four controlling switches, according to cable power input son electricity Road and radio source input sub-circuit connect the situation of charger, and the charge control method in the present embodiment fills including following three kinds At least one in electric control mode:
It is connected with wired charger in cable power input sub-circuit, radio source is input into sub-circuit not and wireless charging In the case that device is connected, control the first controlling switch closure, if the charge mode that wired charger is used is low-pressure direct mold filling formula, The second controlling switch and the 3rd controlling switch is then controlled to close, the 4th controlling switch disconnects;If the charging that wired charger is used Pattern is normal charging mode or high pressure trickle charge pattern, then control the second controlling switch and the 3rd controlling switch to disconnect, 4th controlling switch is closed.
Radio source input sub-circuit be connected with wireless charger, cable power be input into sub-circuit not with wired charging In the case that device is connected, the first controlling switch of control disconnects, if the charge mode that wireless charger is used is low-pressure direct mold filling formula, The second controlling switch is then controlled to close, the 3rd controlling switch disconnects;If the charge mode that wireless charger is used is common charging Pattern or high pressure trickle charge pattern, then control the second controlling switch to disconnect, and the 3rd controlling switch and the 4th controlling switch are closed Close.
Cable power be input into sub-circuit and radio source input sub-circuit respectively and meanwhile with wired charger and wireless charging In the case that electrical equipment is connected, the controller in the present embodiment is in the charge mode that wired charger is used for charge mode is common When the charge mode that charge mode or high pressure trickle charge pattern and wireless charger are used is low-pressure direct mold filling formula, control First controlling switch, the second controlling switch, the 4th controlling switch are closed, and the 3rd controlling switch disconnects.
The charge control method of the charging circuit provided by the present embodiment, controller is used according to the charger for getting Charge mode control controlling switch by the input of the output end of power supply input circuit and direct circuit or step-down process circuit Input connection, namely the charge mode corresponding charge path of selection that controller can be used according to charger enters with to terminal Row charges, and can make the compatible charger using various different charge modes of the terminal comprising the charging circuit, improves user The satisfaction of experience.
Example IV:
The present embodiment provides a kind of terminal, including terminal body and charging circuit, and charging circuit is arranged on terminal body Interior, the charging circuit in the present embodiment can be any one charging circuit in the embodiment of the present invention one or embodiment two, The description in embodiment one and embodiment two is specifically referred to, is repeated no more here.However, it is desirable to explanation, this implementation Controller in example inside charging circuit can be the processor of terminal or can also be power-supply controller of electric.
Additionally, shown in Figure 7, the terminal in the present embodiment can also include storage device 17, depositing in the present embodiment Storage device 17 is also disposed in terminal body, and the storage device in the present embodiment includes nonvolatile memory, volatile storage Device, flash memory, hard disk and solid state hard disc etc..
The internal memory of storage device 17 contains multiple instruction to realize the charge control method of charging circuit of the present invention.Charging circuit Controller 15 perform multiple instruction and realize following operation:
Controller 15 obtains the charge mode that the charger being currently connected with power supply input circuit is used;
Controller 15 controls controlling switch that the output end of power supply input circuit is defeated with direct circuit according to charge mode The input for entering end or step-down process circuit is connected.
Further, when the currently employed charge mode of charger is low-pressure direct mold filling formula, the control control of controller 15 Switch and connect the input of the output end of power supply input circuit and direct circuit;
When the currently employed charge mode of charger is normal charging mode or high pressure trickle charge pattern, controller 15 control controlling switches connect the output end of power supply input circuit with the input of step-down process circuit.
Further, when power supply input circuit includes wired power input sub-circuit and radio source input sub-circuit, control System switch includes the first controlling switch, the second controlling switch, the 3rd controlling switch and the 4th controlling switch, cable power input Sub-circuit and radio source input sub-circuit are connected with wired charger and wireless charger respectively simultaneously when, controller is wired The charge mode that charger is used is that charge mode is normal charging mode or high pressure trickle charge pattern and the wireless charging When the charge mode that electrical equipment is used is low-pressure direct mold filling formula, the first controlling switch of control, the second controlling switch, the 4th controlling switch Close, the 3rd controlling switch disconnects.
Terminal provided in an embodiment of the present invention, obtains the charge mode that charger is used, so as to control by controller Make the disconnection of switch or close to select corresponding charge path to be charged with to terminal, so that terminal can be adopted with compatibility With the charger of various different charge modes, the satisfaction of Consumer's Experience is improved.
Above content is to combine specific embodiment further description made for the present invention, it is impossible to assert this hair Bright specific implementation is confined to these explanations.For general technical staff of the technical field of the invention, do not taking off On the premise of present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to protection of the invention Scope.

Claims (10)

1. a kind of charging circuit, it is characterised in that including:Power supply input circuit, step-down process circuit, direct circuit, control are opened Close and controller;
The input of the power supply input circuit is connected with charger output end, and output end is connected with the controlling switch;It is described The output end of step-down process circuit and the direct circuit is connected with battery to be charged respectively;
The controller is used to control the controlling switch by the power supply according to the currently employed charge mode of the charger The output end of input circuit is connected with the input of the direct circuit or the input of the step-down process circuit.
2. charging circuit as claimed in claim 1, it is characterised in that the controller is used for currently employed in the charger Charge mode when being low-pressure direct mold filling formula, control the controlling switch that the output end of the power supply input circuit is straight with described The input of circuit passband is connected, and is that normal charging mode or high pressure low current fill in the currently employed charge mode of the charger During power mode, the controlling switch is controlled by the output end of the power supply input circuit and the input for being depressured process circuit Connect.
3. charging circuit as claimed in claim 1 or 2, it is characterised in that the power supply input circuit is cable power input Sub-circuit;
The input of cable power input sub-circuit is used to be connected with the output end of wired charger, output end and the control System switch connection;
The controller is used to control the controlling switch according to the currently employed charge mode of the wired charger by described in The output end of cable power input sub-circuit is terminated with the input of the input or the step-down process circuit of the direct circuit It is logical.
4. charging circuit as claimed in claim 1 or 2, it is characterised in that the power supply input circuit is radio source input Sub-circuit;
The output end of the radio source input sub-circuit is connected with the controlling switch, and input is used to connect with wireless charger Obtain obtaining current and exported by output end;
The controller is used to control the controlling switch according to the currently employed charge mode of the wireless charger by described in The output end of radio source input sub-circuit is terminated with the input of the input or the step-down process circuit of the direct circuit It is logical.
5. charging circuit as claimed in claim 1 or 2, it is characterised in that the power supply input circuit includes that cable power is defeated Enter sub-circuit and radio source input sub-circuit;
The controlling switch includes the first controlling switch, the second controlling switch, the 3rd controlling switch and the 4th controlling switch;
The input of cable power input sub-circuit is used to be connected with the output end of wired charger, output end and described the The first connection end connection of one controlling switch, the of the second connection end of first controlling switch and the 4th controlling switch One connection end connects, and the second connection end of the 4th controlling switch is connected with the input of the step-down process circuit;
The input of the radio source input sub-circuit is used to obtain electric current, output end and the described second control from wireless charger The first connection end connection of switch is made, the second connection end of second controlling switch connects with the input of the direct circuit Connect;
First connection end of the 3rd controlling switch is connected with the second connection end of first controlling switch, the 3rd control The second connection end for making switch is connected with the first connection end of second controlling switch.
6. charging circuit as claimed in claim 5, it is characterised in that the controller is used to be input into son in the cable power When the input of circuit is connected with the output end of wired charger, the first controlling switch closure is controlled, according to described wired The current charge mode of charger controls second controlling switch and the 3rd controlling switch closure, and the 4th control is opened Shut-off is opened, or controls second controlling switch and the 3rd controlling switch to disconnect, the 4th controlling switch closure;
The controller is used for when the input of radio source input sub-circuit is connected acquisition electric current with wireless charger, Control first controlling switch to disconnect, second controlling switch is controlled according to the current charge mode of the wireless charger Closure, the 3rd controlling switch is disconnected, or controls second controlling switch to disconnect, and the 3rd controlling switch and the 4th is controlled System switch closure.
7. a kind of terminal, it is characterised in that the charging circuit including terminal body and as described in claim any one of 1-6,
The charging circuit is arranged in the terminal body.
8. the charge control method of a kind of charging circuit as described in claim any one of 1-6, it is characterised in that including:
The controller obtains the charge mode that the charger being currently connected with the power supply input circuit is used;
The controller controls the controlling switch by the output end of the power supply input circuit and institute according to the charge mode The input of the input or the step-down process circuit of stating direct circuit is connected.
9. the charge control method of charging circuit as claimed in claim 8, it is characterised in that the controller fills according to Power mode controls the controlling switch by the input or described of the output end of the power supply input circuit and the direct circuit The input connection for being depressured process circuit includes:
When the currently employed charge mode of the charger is low-pressure direct mold filling formula, the controlling switch is controlled by the power supply The output end of input circuit is connected with the input of the direct circuit;
When the currently employed charge mode of the charger is normal charging mode or high pressure trickle charge pattern, institute is controlled Controlling switch is stated to connect the output end of the power supply input circuit with the input of the step-down process circuit.
10. the charge control method of charging circuit as claimed in claim 9, it is characterised in that
When the power supply input circuit includes wired power input sub-circuit and radio source input sub-circuit, the controlling switch Including the first controlling switch, the second controlling switch, the 3rd controlling switch and the 4th controlling switch, cable power input Circuit and radio source input sub-circuit are connected with wired charger and wireless charger respectively simultaneously when, methods described is also wrapped Include:
The controller is in the charge mode that the wired charger is used for charge mode is that normal charging mode or height are forced down When the charge mode that current charging mode and the wireless charger are used is low-pressure direct mold filling formula, first control is controlled Switch, the second controlling switch, the 4th controlling switch are closed, and the 3rd controlling switch disconnects.
CN201611179248.4A 2016-12-19 2016-12-19 Charging circuit, charging control method of charging circuit, and terminal Pending CN106684978A (en)

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