CN106100031A - A kind of charging circuit, charging method and terminal - Google Patents
A kind of charging circuit, charging method and terminal Download PDFInfo
- Publication number
- CN106100031A CN106100031A CN201610511159.9A CN201610511159A CN106100031A CN 106100031 A CN106100031 A CN 106100031A CN 201610511159 A CN201610511159 A CN 201610511159A CN 106100031 A CN106100031 A CN 106100031A
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- China
- Prior art keywords
- charging
- electronic circuit
- wired
- wireless
- overvoltage protection
- Prior art date
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The invention discloses a kind of charging circuit, charging method and terminal; wherein; charging circuit includes: the charging electronic circuit that wired charging of comprising wired overvoltage protection chip accesses electronic circuit, the wireless charging that comprises wireless overvoltage protection chip accesses electronic circuit, comprises charging chip, wired charging accesses electronic circuit and wireless charging accesses electronic circuit and electrically connects with charging electronic circuit respectively；When wireless charging accesses electronic circuit input wireless charging electric current, wireless overvoltage protection chip turns on, wireless charging electric current input charging chip；When wired charging accesses electronic circuit input wired charging current, wired overvoltage protection chip turns on, and wired overvoltage protection chip controls wireless overvoltage protection chip and turns off, wired charging current input charging chip.The present invention utilizes overvoltage protection chip to realize hardware mode charging priority and selects, and by controlling wired overvoltage protection chip and wireless overvoltage protection chip, can reduce charging impedance, improves charge efficiency.
Description
Technical field
The present embodiments relate to electronic technology field, particularly relate to a kind of charging circuit, charging method and terminal.
Background technology
At present, the scope that terminal is used is more and more extensive, uses terminal, is possible not only to listen song, but also can see and regard
Frequently, surf the Net, play game etc..During the use of terminal, due to the limitation of battery capacity, the electricity of battery quickly can be used
Complete, need user's charging frequent to battery.
In prior art, when terminal is charged, can be in the way of using wired charging or wireless charging.But work as
In the case of wired charging is simultaneous with wireless charging, existing wireless charging chip typically cannot directly solve to fill with wired
The issue of priority of electricity, is required for being realized by peripheral circuit.
Existing modal scheme is through controlling wireless charging path and the double metal-oxide-semiconductors on wired charging path
Open and close realize the control to two paths, but increase by two metal-oxide-semiconductors on charge path, so can increase charge path
Impedance (about 100 milliohm), if charging current is very big, can reduce charge efficiency, affect the charging interval, especially stress now
The epoch of quick charge, more and more higher to the resistance requirements of charging path.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of charging circuit, charging method and terminal, utilizes overvoltage protection chip
Realize hardware mode charging priority to select.
First aspect, embodiments provides a kind of charging circuit, including:
The wireless charging that the wired charging comprising wired overvoltage protection chip accesses electronic circuit, comprises wireless overvoltage protection chip
The charging electronic circuit be electrically accessed electronic circuit, comprising charging chip, wherein, described wired charging accesses electronic circuit and wireless charging connects
Enter electronic circuit to electrically connect with described charging electronic circuit respectively；
When described wireless charging accesses electronic circuit input wireless charging electric current, described wireless overvoltage protection chip turns on, institute
State wireless charging electric current and input described charging chip；
When described wired charging accesses electronic circuit input wired charging current, described wired overvoltage protection chip turns on, institute
Stating wired overvoltage protection chip and control the shutoff of described wireless overvoltage protection chip, described wired charging current inputs described charging core
Sheet.
Second aspect, the embodiment of the present invention additionally provides a kind of charging method, including:
The wireless charging that the wired charging comprising wired overvoltage protection chip accesses electronic circuit, comprises wireless overvoltage protection chip
The charging electronic circuit be electrically accessed electronic circuit, comprising charging chip, wherein, described wired charging accesses electronic circuit and wireless charging connects
Enter electronic circuit to electrically connect with described charging electronic circuit respectively；
Described charging method includes:
When described wireless charging accesses electronic circuit input wireless charging electric current, described wireless overvoltage protection chip turns on, should
Described wireless charging electric current inputs described charging chip；
When described wired charging accesses electronic circuit input wired charging current, described wired overvoltage protection chip turns on, institute
Stating wired overvoltage protection chip and control the shutoff of described wireless overvoltage protection chip, this described wired charging current inputs described charging
Chip.
The third aspect, the embodiment of the present invention additionally provides a kind of terminal, including the charging circuit described in first aspect.
Charging circuit, charging method and the terminal that the embodiment of the present invention provides, wired charging accesses electronic circuit and comprises wired
Overvoltage protection chip, wireless charging accesses electronic circuit and comprises wireless overvoltage protection chip, when wireless charging accesses electronic circuit input
During wireless charging electric current, wireless overvoltage protection chip turns on, and wireless charging electric current input charging chip, when wired charging accesses son
When circuit inputs wired charging current, wired overvoltage protection chip turns on, and wired overvoltage protection chip controls wireless overvoltage protection
Chip turns off, wired charging current input charging chip.It is preferential that the present invention utilizes overvoltage protection chip to realize hardware mode charging
Level selects, and by controlling wired overvoltage protection chip and wireless overvoltage protection chip, can reduce charging impedance, improves charging
Efficiency.
Accompanying drawing explanation
In order to the technical scheme of exemplary embodiment of the present is clearly described, required to describing in embodiment below
Accompanying drawing to be used does one and simply introduces.Obviously, the accompanying drawing introduced is a part of embodiment that the present invention is to be described
Accompanying drawing rather than whole accompanying drawings, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used
To obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of charging circuit that the embodiment of the present invention one provides；
Fig. 2 is the structural representation of a kind of charging circuit that the embodiment of the present invention two provides；
Fig. 3 is the schematic flow sheet of a kind of charging method that the embodiment of the present invention three provides.
Detailed description of the invention
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, in order to just
Part related to the present invention is illustrate only rather than full content in description, accompanying drawing.
It also should be noted that, for the ease of describe, accompanying drawing illustrate only part related to the present invention rather than
Full content.It should be mentioned that, some exemplary embodiments are described before being discussed in greater detail exemplary embodiment
Become the process or method described as flow chart.Although operations (or step) is described as the process of order by flow chart, but
It is that many of which operation can be implemented concurrently, concomitantly or simultaneously.Additionally, the order of operations can be by again
Arrange.The most described process can be terminated, it is also possible to have the additional step being not included in accompanying drawing.
Described process can correspond to method, function, code, subroutine, subprogram etc..
Embodiment one
Fig. 1 is the structural representation of a kind of charging circuit that the embodiment of the present invention one provides, and this circuit structure can be applied
Need to provide in the terminal of charging, as it is shown in figure 1, this structure specifically includes: comprise having of wired overvoltage protection chip any
Line charging access electronic circuit 10, the wireless charging comprising wireless overvoltage protection chip access electronic circuit 20, comprise charging chip
Charging electronic circuit 30, wherein, wired charging access electronic circuit 10 and wireless charging access electronic circuit 20 respectively with charging electronic circuit
30 electrical connections；
Wherein, when wireless charging access electronic circuit 10 inputs wireless charging electric current, wireless overvoltage protection chip turns on, wireless
Charging current input charging chip；
When wired charging access electronic circuit 10 inputs wired charging current, wired overvoltage protection chip turns on, wired overvoltage
The protection wireless overvoltage protection chip of chip controls turns off, wired charging current input charging chip.
In the case of different charging current inputs, wired charging accesses electronic circuit 10, wireless charging accesses electronic circuit 20
The situation that implements different, illustrate in detail below:
The first situation: wired charging accesses electronic circuit 10 and do not inputs wired charging current, wireless charging access electronic circuit
20 input wireless charging electric currents.
Do not input wired charging current when wired charging accesses electronic circuit 10, wireless charging accesses electronic circuit 20 and inputs wireless
During charging current, wireless overvoltage protection chip turns on, in wireless charging electric current input charging chip, it is achieved for charging electronic circuit 30
Carrying out wireless charging, now, wired charging accesses in electronic circuit 10 does not has wired charging current, at the most wired charging electronic circuit
In off position, charging electronic circuit now is in wireless charging state.
The second situation: wired charging accesses electronic circuit 10 and inputs wired charging current, wireless charging access electronic circuit 20
Do not input wireless charging electric current.
Input wired charging current when wired charging accesses electronic circuit 10, wireless charging accesses electronic circuit 20 and does not input wireless
During charging current, wired overvoltage protection chip turns on, in wired charging current input charging chip, it is achieved for charging electronic circuit 30
Being charged, now, wireless charging accesses in electronic circuit 20 does not has wireless charging electric current, and therefore wireless charging electronic circuit is in not
Duty, charging electronic circuit now is in wired charged state.
The third situation: wired charging accesses electronic circuit 10 and inputs wired charging current, wireless charging access electronic circuit 20
Input wireless charging electric current.
Input wired charging current when wired charging accesses electronic circuit 10, wireless charging accesses electronic circuit 20 and inputs wireless charging
During electricity electric current, the most wired overvoltage protection chip turns on, in wired charging current input charging chip, it is achieved for charging electronic circuit
30 are charged, and wired overvoltage protection chip controls wireless overvoltage protection chip and turns off, although now have wireless charged electrical
Stream input wireless charging accesses in electronic circuit 20, but wired overvoltage protection chip controls wireless overvoltage protection chip and turns off, because of
This wireless charging accesses electronic circuit 20 and is still within off position, and charging electronic circuit 30 now is in wired charged state.
A kind of charging circuit that the embodiment of the present invention one provides, wireless charging accesses electronic circuit input wireless charging electric current
Time, wireless overvoltage protection chip turns on, and wireless charging electric current input charging chip, wired charging accesses electronic circuit and inputs wired filling
During electricity electric current, wired overvoltage protection chip turns on, and wired overvoltage protection chip controls wireless overvoltage protection chip and turns off, You Xianchong
Electricity electric current input charging chip, it is ensured that in the case of wired charging current, wired charging is in the highest all the time
Priority, the present invention utilizes overvoltage protection chip to realize hardware mode charging priority and selects, and, by controlling wired overvoltage
Protection chip and wireless overvoltage protection chip, it is not necessary to metal-oxide-semiconductor is additionally set on charging circuit, can reduce on charge path
Charging impedance, improves charge efficiency.
Embodiment two
Fig. 2 is the structural representation of a kind of charging circuit that the embodiment of the present invention two provides, and the embodiment of the present invention is with above-mentioned
Based on embodiment, a kind of charging circuit of concrete offer, as in figure 2 it is shown, described charging circuit specifically includes: comprise wired overvoltage
The wired charging access electronic circuit 10 protecting chip, the wireless charging comprising wireless overvoltage protection chip access electronic circuit 20, bag
Charging electronic circuit 30 containing charging chip；
Wired charging access electronic circuit 10 can also comprise USB access unit, the first voltage regulation unit, the first filter unit and
Partial pressure unit；
Wherein, described USB access unit can respectively with the input of described wired overvoltage protection chip, described first steady
Pressure unit and described first filter unit connect, and, described USB access unit can be by partial pressure unit and described wired mistake
The over-voltage locking pin of pressure protection chip connects.
Further, described USB access unit can be that USB accesses terminal J100；
Described wired overvoltage protection chip can be U102；
Described first voltage regulation unit can comprise Zener diode D102, bi-directional voltage stabilizing diode D103 and D104, is used for
Described wired charging is accessed electronic circuit and carries out voltage-stabilizing protection；
Described first filter unit can comprise electric capacity C100, C102, C103 and C104, for described wired charging
Enter electronic circuit to be filtered；
Described partial pressure unit can comprise resistance R104 and R105, for controlling conducting and the shutoff of U102.
Concrete, 1 foot of J100 for controlling bus pin, with D102 negative pole, C102 one end, C103 one end, C104 one end,
The input of R104 one end and U102 connects, D102 positive pole, the C102 other end, the C103 other end, C104 other end ground connection,
The R104 other end is connected with the over-voltage locking pin of R105 one end, U102, R105 other end ground connection, and 2 feet of J100,3 feet are respectively
For USB standard pin, 2 feet are USBD-pin, are connected with D104 negative pole, MSM_US_D-end, D104 plus earth, and 3 feet are USB
D+ pin, is connected with D103 negative pole, MSM_US_D+ end, D103 plus earth, and 4 feet of J100,10 feet, 11 feet are unsettled pin,
5 feet, 6 feet, 7 feet, 8 feet, 9 foot ground connection, the C1 foot of U102, C2 foot, C3 foot, B2 foot are input pin, and C4 foot is unsettled, A1 foot, A2
Foot, A4 foot, B1 foot are output pin, are connected with one end of C100, the other end ground connection of C100, and A3 foot is unsettled, the B3 foot of U102
Can be voltage output pin, be connected with wireless overvoltage protection chip, B5 foot be connected with TP105 end, and A5 foot is with TP104 end even
Connecing, TP104 end and TP105 end are test point, C5 foot ground connection.
Wherein, the model of J100 can be KIU90531SP3MR；The model of U102 can be KTS1686；The model of D102
Can be that ESD5621W-2/TR, D103 and D104 model is identical, can be ESDBVL5V0Y1, D102 be Zener diode,
D103 and D104 is bi-directional voltage stabilizing Zener diode, and D102, D103 and D104, collectively as the first voltage regulation unit, can be to have
Line charging accesses electronic circuit 10 and provides voltage-stabilizing protection；C100 can be 1 μ F/50V, and C102 can be that 33pF/50V, C103 are permissible
Can be 2.2 μ F/16V for 1nF/25V, C104, C100, C102, C103 and C104 can be that wired charging accesses electronic circuit 10
It is filtered；R104 can be 300K Ω, R105 can be 39K Ω, R104 and R105 collectively as partial pressure unit, may be used for
Control conducting and the shutoff of U102, concrete, when the voltage of 5V flows into partial pressure unit, R104 gets major part voltage,
Fraction voltage is got, according to the resistance size of R104 and R105, it is ensured that on the over-voltage locking pin of U102 on R105
Voltage is less than 1.22V, U102 normally.
Wireless charging access electronic circuit 20 can also comprise antenna element, wireless charging receive chip, the second voltage regulation unit,
Second filter unit, control unit of shaking hands and reverse-filling unit；
Wherein, described antenna element receive with the input of described wireless overvoltage protection chip, wireless charging respectively unit,
Second voltage regulation unit, the second filter unit and control unit of shaking hands connect, and described wireless charging receives unit and shakes hands with described
Control unit connects, and, described wired overvoltage protection chip is by reverse-filling unit with described wireless overvoltage protection chip even
Connect.
Further, described antenna element can comprise shell fragment ANT100-ANT107；
It can be U100 that described wireless charging receives chip；
Described wireless overvoltage protection chip can be U101；
Described second voltage regulation unit can comprise Zener diode D100 and bi-directional voltage stabilizing diode D105, for described
Wireless charging accesses electronic circuit and carries out voltage-stabilizing protection；
Described second filter unit can comprise electric capacity C101, C105 and C106, for described wireless charging is accessed son
Circuit is filtered；
Described control unit of shaking hands can comprise audion Q100, resistance R100, R101 and R102, the base of described Q100
Pole is connected with R100, and the emitter stage of Q100 is connected with R101, and the colelctor electrode of Q100 is connected with R102, is used for controlling U100 with wireless
Charging transmitting chip completes to shake hands；
Described reverse-filling unit can be diode D101, for preventing the current direction U102 of U101.
Concrete, wireless electric current flows into described wireless charging from ANT101, ANT102, ANT104, ANT105 and accesses son electricity
Road, wireless current input terminal and D100 negative pole, D105 negative pole, C101 one end, R106 one end, R101 one end and the input of U101
End connects, and D100 positive pole, D105 positive pole, C101 other end ground connection, the R106 other end is connected with the positive pole pin 10 of U100, U100
7 feet for control bus pin, 7 feet are connected with R100 one end, R107 one end, the other end ground connection of R100, the other end of R107
Being connected with one end of C106, the base stage of Q100, the other end ground connection of C106, the emitter stage of Q100 is connected with the R101 other end,
The colelctor electrode of Q100 is connected with the over-voltage locking pin of one end of R102, U101, the other end ground connection of R102,12 feet of U100,
13 feet are negative pin, are connected with ANT100, ANT103, ANT106, ANT107 and ground connection, and 1 foot of U100 and 6 feet connect, 9 feet
For W_LESS pin, 4 feet are D-pin, and 3 feet are D+ pin, and 2 feet, 5 feet, 8 feet, 11 feet are unsettled, the C1 foot of U101, C2 foot, C3
Foot, B2 foot are input pin, and C4 foot is unsettled, and A1 foot, A2 foot, A4 foot, B1 foot are output pin, and A3 foot is unsettled, B3 foot and TP100
End connects, and B5 foot is connected with TP106 end, and A5 foot is connected with TP102 end, and TP100 end, TP104 end, TP105 end are test point, C5
Foot ground connection, one end of C105 is connected with the outfan of the outfan of U101, U102, other end ground connection, the positive pole of D101 and U102
Voltage output pin connect, negative pole is connected with the over-voltage locking pin of U101.
Wherein, the model of described ANT100-ANT107 can be L066-T1EMP-15HV；The model of U101 can be
KTS1686；The model of U100 can be ss195b_12；D100 can be that the model of PESD12VV1BL, D101 can be
The model of RB521BS-30T5G, D105 can be ESD5621W-2/TR, D100 be Zener diode, D105 is bi-directional voltage stabilizing two
Pole is managed, D100 and D105, collectively as the second voltage regulation unit, can be that wireless charging access electronic circuit 20 provides voltage-stabilizing protection；
C101 can be 0.1 μ F/10V, C105 can be 1 μ F/50V, and C106 can be 1 μ F/50V, and C101, C105 and C106 are permissible
Access electronic circuit 20 for wireless charging to be filtered；R100, R101, R102 and Q100 are collectively as control unit of shaking hands, wherein
R100 can be 680K Ω, R101 can be 680K Ω, R102 can be 680K Ω, the model of Q100 can be
LMUN15141T1G, R100, R101 and R102 are connected with base stage, the emitter and collector of Q100 respectively, by adjusting Q100
Saturated with cut-off control U100 complete to shake hands with wireless charging transmitting chip；R106 can be 0 Ω, R107 can be 0 Ω,
R106 and R107 can play the effect of compatible design, it is simple to debugs circuit.
Charging electronic circuit 30 can comprise socket J101, and 1 foot of J101 is connected with the outfan of U101 and U102,2 feet
MSM_USB_D-pin connects, and 3 feet are connected with MSM_USB_D+ pin, and 4 feet, 5 feet, 6 feet, 7 feet, 8 feet, 9 feet, 10 feet connect
Ground.
Wherein, the model of described J101 can be U250FS004M1509BY.
In the case of different charging current inputs, wired charging accesses electronic circuit 10, wireless charging accesses electronic circuit 20
The situation that implements different, illustrate in detail below:
The first situation: wired charging accesses electronic circuit 10 and do not inputs wired charging current, wireless charging access electronic circuit
20 input wireless charging electric currents.
Do not input wired charging current when wired charging accesses electronic circuit 10, wireless charging accesses electronic circuit 20 and inputs wireless
During charging current, in terminal, the contact point of naked leakage contacts with charging panel, and electric current flows into from ANT101,102,104,105, fraction
Arriving wireless charging and receive the IN+ foot of chip U100, major part arrives the IN foot of wireless overvoltage protection chip U101, the most wireless
Charging transmitting chip needs and receives chip to shake hands.Concrete handshake procedure is: disconnection of wireless charging path, the IN of U100
+ pin and VBUS pin are in of short duration off-state, so the base stage of audion Q100 is by resistance R100 with moving to, and Q100
Emitter stage be in high level, so audion be switched on, now the voltage at the colelctor electrode of Q100 is exactly the dividing potential drop of R102, always
Voltage be 5V (R101 upper end charging voltage), it is possible to dividing potential drop goes out the voltage more than 1.22V to the OVLO foot of U101
Make U101 path blockade, thus realize shaking hands.After having shaken hands, the IN+ pin of U100 and the conducting of VBUS pin inner portions, three poles
The base stage of pipe becomes high level, and base voltage is identical with emitter voltage, and audion ends, and now U101 is pulled down by R102
To ground, the OVLO pin of U101 accesses low-voltage, and U101 chip is opened again, and wireless charging electric current is from the input stream of U101
To outfan, flow ultimately in charging chip, it is achieved charging electronic circuit 103 is carried out wireless charging, i.e. by regulation R100,
The size of R101, R102 realizes triode operation in saturated or cut-off state, it is achieved the disconnection of wireless overvoltage protection chip with
Conducting, realizes wireless charging further and receives chip and the handshake procedure of transmitting chip and wireless charging process.Wireless charging
Have only on path be controlled wireless charging overvoltage protection chip just charging electronic circuit to be carried out normal wireless charging,
Without arranging metal-oxide-semiconductor on wireless charging path, on wireless charging path, voltage loss is little, and charge efficiency is high.
The second situation: wired charging accesses electronic circuit 10 and inputs wired charging current, wireless charging access electronic circuit 20
Do not input wireless charging electric current.
Input wired charging current when wired charging accesses electronic circuit 10, wireless charging accesses electronic circuit 20 and does not input wireless
During charging current, USB inserts USB stand J100, and wired charging current is flowed into wired overvoltage protection chip U102 from J1001 foot
Input, the most wired charging current reaches the OVLO pin of U102 through R104, when the voltage of OVLO pin is less than
During 1.22V, U102 normally works, and wired charging current flows out from the outfan of U102 and arrives charging chip, it is achieved to charging
Electronic circuit 103 carries out wired charging.Have only on wired charge path be controlled just may be used to wired charging overvoltage protection chip
So that charging electronic circuit is carried out normal cable charging, it is not necessary to arranging metal-oxide-semiconductor on wired charge path, wired charge path powers on
Crushing consumption is little, and charge efficiency is high.
The third situation: wired charging accesses electronic circuit 10 and inputs wired charging current, wireless charging access electronic circuit 20
Input wireless charging electric current.
Input wired charging current when wired charging accesses electronic circuit 10, wireless charging accesses electronic circuit 20 and inputs wireless charging
During electricity electric current, the most wired overvoltage protection chip U102 normally, in wired charging current input charging chip, it is achieved for filling
Electronic circuit 30 carries out wired charging, and wired overvoltage protection chip U102 is passed through by ACOK pin output 1.8V high voltage
Diode D101 is input to the OVLO pin of wireless overvoltage protection chip U101, and owing to ACOK foot is high level, this high level leads to
Cross diode D101 arrive U101 OVLO foot, this diode drop 300MV, as long as so in theory R102 pull down resistor resistance
Anti-sufficiently large (K ohm up to a hundred), the OVLO foot voltage of U101 can be more than 1.22V, control U101 disconnection certainly, although now without
Line charging receives chip can complete handshake procedure with transmitting chip, but owing to wireless overvoltage protection chip is in disconnection shape
State, wireless charging electric current cannot flow in charging chip, therefore cannot be carried out wireless charging, and now charging electronic circuit 30 has been in
Line charged state, utilizes overvoltage protection chip to realize hardware mode charging priority and selects.Optionally, U101 with U102 passes through
D101 connects, it is also possible to plays the effect of reverse-filling, prevents the voltage of U101 from flowing to U102.
It should be noted that the parameter of above-mentioned components and parts is only for reference, when implementing this programme, can do according to actual environment
Go out amendment.
The charging circuit that the embodiment of the present invention two provides, by controlling wired overvoltage protection chip and wireless overvoltage protection core
Sheet, it is possible to achieve utilize overvoltage protection chip to realize hardware mode charging priority and select, it is not necessary to extra increase peripheral circuit
Realize the mode the using hardware selection to charge path priority, and by an audion back work, it is achieved that no matter
That charge path first charges, and the priority of wired charging is the highest, efficiently solves two kinds of charging collision problems, and goes
Fall wired charge path and the metal-oxide-semiconductor on wireless charging path, reduce the charging impedance on charge path, improve charge efficiency.
Embodiment three
Fig. 3 is the schematic flow sheet of a kind of charging method that the embodiment of the present invention three provides, and this charge protection method is permissible
Applying in any charging circuit, described charging circuit includes that the wired charging comprising wired overvoltage protection chip accesses son electricity
The charging electronic circuit that road, the wireless charging comprising wireless overvoltage protection chip access electronic circuit, comprise charging chip, wherein, institute
State wired charging access electronic circuit and wireless charging accesses electronic circuit and electrically connects with described charging electronic circuit respectively, described charged electrical
Road can be applied in the terminal arbitrarily including above-mentioned charging circuit.As it is shown on figure 3, the method specifically includes:
When S310, described wireless charging access electronic circuit input wireless charging electric current, described wireless overvoltage protection chip is led
Logical, this described wireless charging electric current inputs described charging chip.
Exemplary, when wireless charging accesses electronic circuit input wireless charging electric current, can be by controlling the full of audion
And realize the shutoff controlling wireless overvoltage protection chip with cut-off and open, in wireless charging electric current input charging chip, charging
Electronic circuit realizes wireless charging.
When S320, described wired charging access electronic circuit input wired charging current, described wired overvoltage protection chip is led
Logical, described wired overvoltage protection chip controls described wireless overvoltage protection chip and turns off, and this described wired charging current inputs institute
State charging chip.
Exemplary, when wired charging accesses electronic circuit input wired charging current, the most whether there is wireless charging
Electricity electric current, now, wired overvoltage protection chip turns on and controls wireless overvoltage protection chip and turns off, and wired charging current inputs institute
Stating charging chip, charging electronic circuit realizes wired charging.
The charging method that the embodiment of the present invention three provides, can apply described in above-described embodiment one or embodiment two
On charging circuit, when wireless charging accesses electronic circuit input wireless charging electric current, wireless overvoltage protection chip turns on, wireless charging
Electricity electric current input charging chip, when wired charging accesses electronic circuit input wired charging current, wired overvoltage protection chip turns on,
Wired overvoltage protection chip controls wireless overvoltage protection chip and turns off, wired charging current input charging chip, it is ensured that only
In the case of there is wired charging current, wired charging is in limit priority all the time, and the present invention utilizes overvoltage protection chip
Realize hardware mode charging priority to select, and, by controlling wired overvoltage protection chip and wireless overvoltage protection chip, nothing
Metal-oxide-semiconductor need to be additionally set on charging circuit, the charging impedance on charge path can be reduced, improve charge efficiency..
The embodiment of the present invention additionally provides a kind of terminal, and described terminal specifically can include above-described embodiment one or implement
The charging circuit that example two provides, it is possible to perform the charging method that the embodiment of the present invention three provides.The end that the embodiment of the present invention provides
End, the wireless charging access electronic circuit including the wired charging comprising wired overvoltage protection chip, comprising wireless overvoltage protection chip
The charging electronic circuit be electrically accessed electronic circuit, comprising charging chip, described wireless charging accesses electronic circuit input wireless charging electric current
Time, described wireless overvoltage protection chip turns on, and wherein, described wired charging accesses electronic circuit and wireless charging accesses electronic circuit and divides
Not electrically connecting with described charging electronic circuit, described wireless charging electric current inputs described charging chip, and described wired charging accesses son
When circuit inputs wired charging current, described wired overvoltage protection chip turns on, and described wired overvoltage protection chip controls described
Wireless overvoltage protection chip turns off, and described wired charging current inputs described charging chip.Use technique scheme, utilized
Pressure protection chip realizes hardware mode charging priority and selects, and by controlling wired overvoltage protection chip and wireless overvoltage protection
Chip, can reduce charging impedance, improves charge efficiency.Optionally, described terminal can be mobile phone, panel computer or other
Need the terminal unit being charged.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious change,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although by above example, the present invention is carried out
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other Equivalent embodiments more can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. a charging circuit, it is characterised in that including: comprise wired overvoltage protection chip wired charging access electronic circuit,
The charging electronic circuit that the wireless charging that comprises wireless overvoltage protection chip accesses electronic circuit, comprises charging chip, wherein, described in have
Line charging accesses electronic circuit and wireless charging accesses electronic circuit and electrically connects with described charging electronic circuit respectively；
When described wireless charging accesses electronic circuit input wireless charging electric current, described wireless overvoltage protection chip turns on, described nothing
Line charging current inputs described charging chip；
Described wired charging access electronic circuit input wired charging current time, described wired overvoltage protection chip turn on, described in have
Line overvoltage protection chip controls described wireless overvoltage protection chip and turns off, and described wired charging current inputs described charging chip.
Charging circuit the most according to claim 1, it is characterised in that described wired charging accesses electronic circuit and also comprises USB
Access unit, the first voltage regulation unit, the first filter unit and partial pressure unit；
Wherein, described USB access unit respectively with the input of described wired overvoltage protection chip, described first voltage regulation unit and
Described first filter unit connects, and, described USB access unit is by partial pressure unit and described wired overvoltage protection chip
Over-voltage locking pin connects.
Charging circuit the most according to claim 2, it is characterised in that
Described USB access unit is that USB accesses terminal J100；
Described wired overvoltage protection chip is U102；
Described first voltage regulation unit comprises Zener diode D102, bi-directional voltage stabilizing diode D103 and D104, for having described
Line charging accesses electronic circuit and carries out voltage-stabilizing protection；
Described first filter unit comprises electric capacity C100, C102, C103 and C104, for described wired charging is accessed electronic circuit
It is filtered；
Described partial pressure unit comprises resistance R104 and R105, for controlling conducting and the shutoff of U102.
Charging circuit the most according to claim 3, it is characterised in that 1 foot of described J100 is control bus pin, with
The input of D102 negative pole, C102 one end, C103 one end, C104 one end, R104 one end and U102 connects, D102 positive pole,
The C102 other end, the C103 other end, C104 other end ground connection, the R104 other end and R105 one end, the over-voltage locking pin of U102
Connecting, R105 other end ground connection, 2 feet of J100,3 feet are respectively USB standard pin, and 2 feet are USB D-pin, bear with D104
Pole, MSM_US_D-end connect, D104 plus earth, and 3 feet are USB D+ pin, are connected with D103 negative pole, MSM_US_D+ end,
D103 plus earth, the outfan of U102 is connected with one end of C100, the other end ground connection of C100, the voltage output pin of U102
It is connected with wireless overvoltage protection chip.
Charging circuit the most according to claim 4, it is characterised in that described wireless charging accesses electronic circuit and also comprises antenna
Unit, wireless charging receive chip, the second voltage regulation unit, the second filter unit, control unit of shaking hands and reverse-filling unit；
Wherein, described antenna element receive with the input of described wireless overvoltage protection chip, wireless charging respectively unit, second
Voltage regulation unit, the second filter unit and control unit of shaking hands connect, and described wireless charging receives unit and described control of shaking hands
Unit connects, and, described wired overvoltage protection chip is connected with described wireless overvoltage protection chip by reverse-filling unit.
Charging circuit the most according to claim 5, it is characterised in that
Described antenna element comprises shell fragment ANT100-ANT107；
It is U100 that described wireless charging receives chip；
Described wireless overvoltage protection chip is U101；
Described second voltage regulation unit comprises Zener diode D100 and bi-directional voltage stabilizing diode D105, for described wireless charging
Access electronic circuit and carry out voltage-stabilizing protection；
Described second filter unit comprises electric capacity C101, C105 and C106, carries out for described wireless charging is accessed electronic circuit
Filtering；
Described control unit of shaking hands comprises audion Q100, resistance R100, R101 and R102, the base stage of described Q100 and R100
Connecting, the emitter stage of Q100 is connected with R101, and the colelctor electrode of Q100 is connected with R102, is used for controlling U100 and launches with wireless charging
Chip completes to shake hands；
Described reverse-filling unit is diode D101, for preventing the current direction U102 of U101.
Charging circuit the most according to claim 6, it is characterised in that
Wireless electric current flows into described wireless charging from ANT101, ANT102, ANT104, ANT105 and accesses electronic circuit, wireless electric current
Input connects with the input of D100 negative pole, D105 negative pole, C101 one end, the positive pole pin of U100, R101 one end and U101
Connect, D100 positive pole, D105 positive pole, C101 other end ground connection, the control bus pin of U100 and R100 one end, one end of C106,
The base stage of Q100 connects, the other end ground connection of R100, the other end ground connection of C106, and the emitter stage of Q100 is with the R101 other end even
Connecing, the colelctor electrode of Q100 is connected with the over-voltage locking pin of one end of R102, U101, the other end ground connection of R102, and U100's is negative
Pole pin is connected with ANT100, ANT103, ANT106, ANT107 and ground connection, one end of C105 and the outfan of U101, U102
Outfan connects, other end ground connection, and the positive pole of D101 is connected with the voltage output pin of U102, negative pole and the over-voltage locking of U101
Foot connects.
Charging circuit the most according to claim 7, it is characterised in that described charging electronic circuit comprises socket J101, J101
1 foot be connected with the outfan of U101 and U102,2 feet are connected with MSM_USB_D-pin, and 3 feet and MSM_USB_D+ pin are even
Connect.
9. a terminal, it is characterised in that include the arbitrary described charging circuit of claim 1-8.
10. the charging method of a charging circuit, it is characterised in that described charging circuit includes comprising wired overvoltage protection chip
Wired charging access electronic circuit, comprise wireless overvoltage protection chip wireless charging access electronic circuit, comprise charging chip
Charging electronic circuit, wherein, described wired charging accesses electronic circuit and wireless charging accesses electronic circuit electricity with described charging respectively
Road electrically connects；
Described charging method includes:
When described wireless charging accesses electronic circuit input wireless charging electric current, described wireless overvoltage protection chip turns on, and this is described
Wireless charging electric current inputs described charging chip；
Described wired charging access electronic circuit input wired charging current time, described wired overvoltage protection chip turn on, described in have
Line overvoltage protection chip controls described wireless overvoltage protection chip and turns off, and this described wired charging current inputs described charging core
Sheet.
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| CN201610511159.9A CN106100031B (en) | 2016-06-30 | 2016-06-30 | A kind of charging circuit, charging method and terminal |
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| CN201610511159.9A CN106100031B (en) | 2016-06-30 | 2016-06-30 | A kind of charging circuit, charging method and terminal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532867A (en) * | 2016-12-30 | 2017-03-22 | 宇龙计算机通信科技(深圳)有限公司 | Charging circuit and mobile terminal |
| CN109066884A (en) * | 2018-09-03 | 2018-12-21 | Oppo广东移动通信有限公司 | Charging circuit and electronic equipment |
| CN109066883A (en) * | 2018-09-03 | 2018-12-21 | Oppo广东移动通信有限公司 | Charging circuit, charging method and electronic equipment |
| CN113054711A (en) * | 2021-03-29 | 2021-06-29 | 深圳市卡卓无线信息技术有限公司 | Charging circuit with multiple charging ports |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110156636A1 (en) * | 2009-12-28 | 2011-06-30 | Kim Bong-Young | Battery pack and method of controlling charging of battery pack |
| CN102299548A (en) * | 2010-06-24 | 2011-12-28 | 海尔集团公司 | Electronic device and power supply method thereof as well as wireless power supply system |
| US20140285159A1 (en) * | 2013-03-19 | 2014-09-25 | Fih (Hong Kong) Limited | Wireless charger and charging method |
| CN204271723U (en) * | 2014-12-30 | 2015-04-15 | 乐视致新电子科技（天津）有限公司 | Portable electric appts and charging system thereof |
| CN105191040A (en) * | 2013-05-03 | 2015-12-23 | 三星电子株式会社 | Method and apparatus for controlling abnormal condition in wireless power receiver |
| CN105656115A (en) * | 2015-11-30 | 2016-06-08 | 东莞酷派软件技术有限公司 | Dual channel charging method, system and terminal thereof |
-
2016
- 2016-06-30 CN CN201610511159.9A patent/CN106100031B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110156636A1 (en) * | 2009-12-28 | 2011-06-30 | Kim Bong-Young | Battery pack and method of controlling charging of battery pack |
| CN102299548A (en) * | 2010-06-24 | 2011-12-28 | 海尔集团公司 | Electronic device and power supply method thereof as well as wireless power supply system |
| US20140285159A1 (en) * | 2013-03-19 | 2014-09-25 | Fih (Hong Kong) Limited | Wireless charger and charging method |
| CN105191040A (en) * | 2013-05-03 | 2015-12-23 | 三星电子株式会社 | Method and apparatus for controlling abnormal condition in wireless power receiver |
| CN204271723U (en) * | 2014-12-30 | 2015-04-15 | 乐视致新电子科技（天津）有限公司 | Portable electric appts and charging system thereof |
| CN105656115A (en) * | 2015-11-30 | 2016-06-08 | 东莞酷派软件技术有限公司 | Dual channel charging method, system and terminal thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532867A (en) * | 2016-12-30 | 2017-03-22 | 宇龙计算机通信科技(深圳)有限公司 | Charging circuit and mobile terminal |
| CN106532867B (en) * | 2016-12-30 | 2019-04-12 | 宇龙计算机通信科技(深圳)有限公司 | A kind of charging circuit and mobile terminal |
| CN109066884A (en) * | 2018-09-03 | 2018-12-21 | Oppo广东移动通信有限公司 | Charging circuit and electronic equipment |
| CN109066883A (en) * | 2018-09-03 | 2018-12-21 | Oppo广东移动通信有限公司 | Charging circuit, charging method and electronic equipment |
| CN109066883B (en) * | 2018-09-03 | 2020-12-22 | Oppo广东移动通信有限公司 | Charging circuit, charging method and electronic equipment |
| CN113054711A (en) * | 2021-03-29 | 2021-06-29 | 深圳市卡卓无线信息技术有限公司 | Charging circuit with multiple charging ports |
| CN113054711B (en) * | 2021-03-29 | 2024-04-19 | 深圳市卡卓无线信息技术有限公司 | Charging circuit with multiple charging ports |
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|---|---|
| CN106100031B (en) | 2018-10-26 |
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