CN104505890B - Mobile terminal - Google Patents

Mobile terminal Download PDF

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Publication number
CN104505890B
CN104505890B CN201410823367.3A CN201410823367A CN104505890B CN 104505890 B CN104505890 B CN 104505890B CN 201410823367 A CN201410823367 A CN 201410823367A CN 104505890 B CN104505890 B CN 104505890B
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CN
China
Prior art keywords
voltage
battery
charging
chip
charge switch
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Active
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CN201410823367.3A
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Chinese (zh)
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CN104505890A (en
Inventor
张俊
冯红俊
李家达
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN201410823367.3A priority Critical patent/CN104505890B/en
Publication of CN104505890A publication Critical patent/CN104505890A/en
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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
    • H02J7/0013Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • 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
    • H02J7/0029Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Abstract

The invention relates to the technical field of intelligent terminals, and provides a mobile terminal. The mobile terminal comprises a charging interface, a charging switch, a power management chip, a first charging chip, a second charging chip, a first battery and a second battery, wherein the power management chip controls connection between a voltage inputting end and a voltage outputting end of the charging switch by using a control end of the charging switch so as to output voltage to the first charging chip and the second charging chip; and the first charging chip and the second charging chip simultaneously output voltage outputted by the charging switch to the first battery and/or the second battery so as to charge the first battery and/or the second battery. During quick charging of the mobile terminal, outputted large current is averagely distributed to the two charging chips and simultaneously charges the two batteries, the shortcoming that the temperature of the mobile terminal rises during quick charging of the mobile terminal is overcome, by the two batteries, the standby time of the mobile terminal is long, and the problem that the power of the mobile terminal is consumed quickly in the prior art is solved.

Description

A kind of mobile terminal
Technical field
The present invention relates to intelligent terminal's technical field, more particularly, to a kind of mobile terminal.
Background technology
With the recreational of intelligent terminal and playability more and more higher, the big problem of mobile phone power consumption amount is increasingly severe, in It is to be solved the above problems by quick charge, generally quickly filling to intelligent terminal is realized using high voltage or high current Electricity, either adopts high-tension mode still by the way of high current, during quick charge, due to charging chip The restriction of efficiency can lead to charging chip to produce substantial amounts of heat, further, since only one of which battery in mobile terminal, leads to move Dynamic terminal power consumption is fast, in sum, exists due to leading to charging core in quick charge using large current charge in prior art The problem that piece temperature raises and mobile terminal power consumption is fast.
Content of the invention
It is an object of the invention to provide a kind of mobile terminal exists due to quick it is intended to solve to be directed in prior art During charging, the problem that charging chip temperature raises and mobile terminal power consumption is fast is led to using large current charge.
The present invention is achieved in that described mobile terminal includes charging in a first aspect, providing a kind of mobile terminal Mouth, charge switch, power management chip, the first charging chip, the second charging chip, the first battery and the second battery;
The voltage input end of described charging inlet connects external power source, and the voltage output end connection of described charging inlet is described The voltage input end of charge switch, the voltage output end of described charge switch connects described first charging chip and described second and fills First electricity of the voltage input end of electrical chip, the first voltage outfan of described first charging chip and described second charging chip Pressure outfan connects the voltage input end of the first battery, and the second voltage outfan of described first charging chip and described second fills The second voltage outfan of electrical chip connects the voltage input end of the second battery;
The outfan of described power management chip connects the control end of described charge switch, and described power management chip passes through The control end of described charge switch control the voltage input end of described charge switch and described charge switch voltage output end it Between connect, give described first charging chip and described second charging chip, described first charging chip and described with output voltage Second charging chip by the voltage that described charge switch exports export simultaneously to described first battery and/or described second battery with It is charged.
In conjunction with a first aspect, in the first possible implementation, the first voltage of described power management chip detects End connects the voltage output end of described charge switch, and described power management chip is being detected by described first voltage test side After the magnitude of voltage of described charge switch output, according to the magnitude of voltage of described charge switch output, by the control of described charge switch It is connected between the voltage input end of the described charge switch of end control processed and the voltage output end of described charge switch or disconnect.
In conjunction with the first possible implementation of first aspect, in the possible implementation of second, described power supply Managing chip when the magnitude of voltage output of described charge switch is detected is less than or equal to the first preset voltage value, described power supply pipe Reason chip controls the voltage input end of described charge switch and the electricity of described charge switch by the control end of described charge switch Press the separated of outfan.
The possible implementation of the first or second in conjunction with the first invention or first aspect, in the third possible reality In existing mode, the second voltage test side of described battery management chip connects the voltage input end of described battery, described power supply pipe The tertiary voltage test side of reason chip connects the voltage input end of described second battery;
Described power management chip is detecting described by described second voltage test side and tertiary voltage test side After the input voltage value of one battery and described second battery, described power management chip is according to the input voltage of described first battery Value or the input voltage value of described second battery, control the voltage of described charge switch defeated by the control end of described charge switch Enter end and be connected between the voltage output end of described charge switch or disconnect.
In conjunction with the third possible implementation of first aspect, in the 4th kind of possible implementation, described power supply Managing chip is more than or equal to the second predeterminated voltage in the input voltage value described first battery or described second battery is detected During value, described power management chip controls voltage input end and the institute of described charge switch by the control end of described charge switch State charge switch voltage output end separated.
In conjunction with a first aspect, in the 5th kind of possible implementation, the second outfan of described power management chip is even Connect the control end of described first charging chip, the 3rd outfan of described power management chip connects described second charging chip Control end, described power management chip detects the electricity of described first battery and described second battery, and according to the described first electricity First charging chip described in the electric energy control of pond and described second battery and described second charging chip be described first battery and/ Or described second battery charge.
In conjunction with the 5th kind of possible implementation of first aspect, in the 6th kind of possible implementation, described power supply When managing chip detects the electricity of described first battery and described second battery and is respectively less than the first preset value, control described first Charging chip and described second charging chip are described first battery and described second battery charging simultaneously.
In conjunction with the 5th kind of possible implementation of first aspect, in the 7th kind of possible implementation, described power supply The electricity that managing chip detects described first battery is less than the first preset value, and the electricity of described second battery is more than described first During preset value, control described first charging chip and described second charging chip to be that described first battery charges until described simultaneously When the electricity of the first battery reaches described first preset value, more described first charging chip and described second charging chip is controlled to be Described first battery and the second battery charge simultaneously.
In conjunction with the 5th kind of possible implementation of first aspect, in the 8th kind of possible implementation, described power supply The electricity that managing chip detects described first battery is more than the second preset value, and the electricity of described second battery is less than described second During preset value, described power management chip controls described first charging chip and described second charging chip to stop as described first Battery charges, and controls described first charging chip and described second charging chip to charge up to institute for described second battery simultaneously The electricity stating the second battery reaches described second preset value.
The first in conjunction with first aspect or first aspect or the 8th kind of any one possible implementation, can at the 9th kind Can implementation in, the data output end of described charging inlet is connected with the data input pin of described charge switch, described fills The data output end of electric switch is connected with the data input pin of described power management chip;
When the voltage output end of described charging inlet and the data output end of described charging inlet are short-circuited, described fill Electric switch disconnects the connection of the data input pin of described charge switch and the data output end of described charge switch, or, described Power management chip controls described charge switch to disconnect the data input pin of described charge switch and the data of described charge switch The connection of outfan.
In conjunction with a first aspect, in the tenth kind of possible implementation, in the tenth kind of possible implementation, described movement Terminal also includes first switch device, and the voltage input end of described first switch device connects the voltage output of described charging inlet End, the voltage output end of described first switch device connects the voltage input end of described charge switch, described first switch device It is in off state when input voltage is for negative pressure.
The present invention provides a kind of mobile terminal, by arranging two charging chips and two batteries, will in quick charge It is that two batteries charge that the high current of output is distributed evenly on two charging chips simultaneously, so that each charging chip will not be dissipated Send substantial amounts of heat, it is to avoid the defect that mobile terminal temperature raises in quick charge, make user when charging using handss More preferable experience is obtained, arrange two batteries makes the stand-by time of mobile terminal longer simultaneously, solves existing skill during machine The fast problem of mobile terminal power consumption in art.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to embodiment or description of the prior art In required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only the present invention some Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these Accompanying drawing obtains other accompanying drawings.
Fig. 1 is a kind of structural representation of mobile terminal that an embodiment of the present invention provides;
Fig. 2 is a kind of structural representation of mobile terminal that present invention another kind embodiment provides;
Fig. 3 is the circuit diagram of the charge switch in a kind of mobile terminal that an embodiment of the present invention provides;
Fig. 4 is the circuit diagram of the charging chip in a kind of mobile terminal that an embodiment of the present invention provides.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and It is not used in the restriction present invention.
In order to technical scheme is described, to illustrate below by specific embodiment.
An embodiment of the present invention provides a kind of mobile terminal, as shown in figure 1, mobile terminal includes charging inlet 101, fills Electric switch 102, power management chip 104, the first charging chip 103, the second charging chip 110, the first battery 105 and second Battery 120.
The voltage input end of charging inlet 101 connects external power source, and the voltage output end of charging inlet 101 connects charging and opens Close 102 voltage input end, the data output end of charge switch 102 connects the data input pin of power management chip 104.
The voltage output end of charge switch 102 connects the control source of the first charging chip 103 and the second charging chip 110 End, the first voltage outfan of the first voltage outfan of the first charging chip 103 and the second charging chip 110 connects the first electricity The voltage input end in pond 105, the second voltage of the second voltage outfan of the first charging chip 103 and the second charging chip 110 Outfan connects the voltage input end of the second battery 120.
First outfan of power management chip 104 connects the control end of charge switch 102, and power management chip 104 leads to The control end overcharging electric switch 102 controls between voltage input end and the voltage output end of charge switch 102 of charge switch 102 Connect, give the first charging chip 103 and the second charging chip 110, the first charging chip 103 and the second charging core with output voltage Piece 110 exports the voltage that charge switch 102 exports to the first battery 105 and/or the second battery 120 to be charged simultaneously.
Optionally, the first voltage test side of power management chip 104 connects the voltage output end of charge switch 102, electricity Source control chip 104 by first voltage test side detect charge switch 102 output magnitude of voltage after, according to described charging The magnitude of voltage of switch 102 output, controls voltage input end and the charging of charge switch 102 by the control end of charge switch 102 Connect between the voltage output end of switch 102 or disconnect.
Optionally, power management chip 104 detects that the magnitude of voltage of charge switch 102 output is less than or equal to the first default electricity During pressure value, power management chip 104 is controlled the voltage input end of charge switch 102 and is filled by the control end of charge switch 102 Connect between the voltage output end of electric switch 102 or disconnect.
In the present embodiment, specifically, in charging process, worked as by power management chip 104 and charging voltage is detected Voltage when dropping into suddenly below some threshold voltage, judge now the first charging chip 103 and/or the second charging chip 110 is breakdown, i.e. the first charging chip 103 and/or the second charging chip 110 breaks down it may appear that the first charging core Charging voltage is applied directly to the situation above battery 105, now power management chip by piece 103 and/or the second charging chip 110 104 control charge switch 102 open circuit to turn off charging path thus protecting the safety of battery.
Present invention another kind embodiment provides a kind of mobile terminal, as shown in Fig. 2 the second electricity of power management chip 104 Pressure test side connects the voltage input end of the first battery 105, and the tertiary voltage test side of power management chip 104 connects the second electricity The voltage input end in pond 120, power management chip 104 is detecting by second voltage test side and tertiary voltage test side After the input voltage value of one battery 105 and the second battery 120, power management chip 104 is according to the input voltage of the first battery 105 Value or the input voltage value of the second battery 120, control the control source of charge switch 102 by the control end of charge switch 102 Hold and be connected between the voltage output end of charge switch 102 or disconnect.
Power management chip 104 is more than or equal in the input voltage value the first battery 105 or the second battery 120 is detected During the second preset voltage value, power management chip 104 controls the voltage of charge switch 102 by the control end of charge switch 102 Input is separated with the voltage output end of charge switch 102.
In the present embodiment, specifically, in charging process, when power management chip 104 detects the first battery 105 or the When the charging voltage of two batteries 120 exceedes predetermined ceiling voltage, judge the first charging chip 103 or the second charging chip 110 Break down, battery is being carried out with overvoltage charging, now power management chip 104 controls charge switch 102 open circuit to turn off Charging path is thus protect the first battery 105 and the safety of the second battery 120.
Optionally, the second outfan of power management chip 104 connects the control end of the first charging chip 103, power supply pipe 3rd outfan of reason chip 104 connects the control end of the second charging chip 110, and power management chip detects the first battery 105 With the electricity of the second battery 120, and electric energy control the first charging chip 103 He according to the first battery 105 and the second battery 120 Second charging chip 110 is the first battery 105 and/or the second battery 120 charges.
Power management chip 104 controls in the first charging chip 103 and a kind of control mode of the second charging chip 110, When power management chip 104 detects the electricity of the first battery 105 and the second battery 120 and is respectively less than the first preset value, control the One charging chip 103 and the second charging chip 110 are the first battery 105 simultaneously and the second battery 120 charges.
Power management chip 104 controls another kind of control mode of the first charging chip 103 and the second charging chip 110 In, the electricity that power management chip 104 detects the first battery 105 is less than the first preset value, and the electricity of the second battery 120 is more than During the first preset value, control the first charging chip 103 and the second charging chip 110 to be that the first battery 105 charges until the simultaneously When the electricity of one battery 105 reaches the first preset value, then the first charging chip 103 and the second charging chip 110 is controlled to be first Battery 105 and the second battery 120 charge simultaneously.
Power management chip 104 controls another kind of control mode of the first charging chip 103 and the second charging chip 110 In, the electricity that power management chip 104 detects the first battery 105 is more than the second preset value, and the electricity of the second battery 120 is less than During the second preset value, power management chip 104 controls the first charging chip 103 and the second charging chip 110 to stop as the first electricity Charge in pond 105, and control the first charging chip 103 and the second charging chip 110 to be that the second battery 120 charges up to second simultaneously The electricity of battery 120 reaches the second preset value.
Optionally, the data output end of charging inlet 101 is connected with the data input pin of charge switch 102, charge switch 102 data output end is connected with the data input pin of power management chip, and the outfan of charging inlet 101 includes voltage output End, the first data output end and the second data output end, the first data output end is d+ end, and the second data output end is d- end, According to the voltage difference transmission data of the first data output end and the second data output end, charging inlet 101 passes through the first data , to charge switch 102 transmission data, the data output end of charge switch 102 includes the first number for outfan and the second data output end According to outfan and the second data output end, charge switch 102 is according to the voltage of the first data output end and the second data output end Differential transmission data, the first data output end of charge switch 102 and the second data output end connect power management chip 104 First data input pin and the second data input pin;Voltage output end and the first data output end or when charging inlet 101 When two data output ends are short-circuited, charge switch 102 disconnects the data transfer and power management chip 104 between.
In the present embodiment, specifically, one can be brought when being such as charged using 9v or 12v voltage using high-voltage charging Extra problem a bit, for example when user when plugging mobile phone voltage end and data input pin d- or d+ it may happen that short circuit, meeting Burn the rear polar circuit of mobile phone, such as cpu, accordingly, it would be desirable to carry out to data input pin d- or d+ detecting the generation preventing open circuit, The number with power management chip 104 can automatically be disconnected when charge switch 102 detection data input d- or d+ is more than 5v voltage According to transmission, thus protection device below is injury-free.
It should be noted that as another embodiment, when power management chip 104 detects charging inlet 101 When voltage output end and the first data output end or the second data output end are short-circuited, power management chip 104 controls charging The data input pin of switch 102 disconnection charge switch 102 and the connection of the data output end of charge switch 102.
Specifically, when power management chip 104 detects data input pin d- or d+ of charge switch 102 more than 5v voltage When charge switch 102 can be controlled to disconnect the company of the data output end of data input pin and the charge switch 102 of charge switch 102 Connect, thus protection device below is injury-free.
Optionally, mobile terminal also includes first switch device 106, and the voltage input end of first switch device 106 connects The voltage output end of charging inlet 101, the outfan of first switch device 106 connects the voltage input end of charge switch 102, the One switching device 106 is in off state when input voltage is for negative pressure.
In the present embodiment it is preferred that first switch device 106 is audion, field effect transistor or igbt (insulated gate bipolar Transistor npn npn).
Lower mask body introduces particular circuit configurations used in above-described embodiment, as shown in Figure 3 and Figure 4 it is preferred that charging Model ic-max14654 of switch 102, its pin in_0, pin in_1 and pin in_2 are to connect charging inlet 101 Voltage input end, the common contact of pin in_0, pin in_1 and pin in_2 connects drain electrode and the electric capacity of field effect transistor 106 The first end of c3500, second end of electric capacity c3500 and the first end of resistance r3514 are connected to ground, second end of resistance r3514 altogether Connect the grid of field effect transistor 106, the source electrode of field effect transistor 106 connects the voltage output end of charging inlet 101, pin in_3 and Pin in_4 is the first data input pin and the second data input pin connecting charging inlet 101, pin out_0, pin out_1 And pin out_2 is the voltage output end connecting charging chip 103, pin out_4 and pin out_5 is to connect power management The data output end of chip 104, pin gnd_2 is the control end connecting power management chip 104, and connects resistance r3523's First end, the second end ground connection of resistance r3523.
Preferably, the concrete model of the first charging chip 103 and the second charging chip 110 employing is smb1357, its pin Usbin_1 and pin usbin_2 is the voltage input end connecting charge switch 102, pin usbin_1 and pin usbin_2 Common contact connect the first end of electric capacity c2111, the second end ground connection, pin chgout_1 and the pin of electric capacity c2111 Chgout_2 is the first voltage outfan connecting battery 105, and the common contact of pin chgout_1 and pin chgout_2 connects The first end of electric capacity c2112, the second end ground connection of electric capacity c2112, pin sw_1 and pin sw_2 is connect battery 105 the Two voltage output ends, pin sysok is the control end connecting power management chip, and the common contact of pin sw_1 and pin sw_2 is even Connect the negative electrode of the first end, the first end of inductance l2102 and stabilivolt d2103 of electric capacity c2106, second end of electric capacity c2106 Connect pin boot, the plus earth of stabilivolt d2103, second end of inductance l2102 connects first end and the electricity of electric capacity c2116 Pond 105, the second end ground connection of electric capacity c2116.
The present invention provides a kind of mobile terminal, by arranging two charging chips and two batteries, will in quick charge It is that two batteries charge that the high current of output is distributed evenly on two charging chips simultaneously, so that each charging chip will not be dissipated Send substantial amounts of heat, it is to avoid the defect that mobile terminal temperature raises in quick charge, make user when charging using handss More preferable experience is obtained, arrange two batteries makes the stand-by time of mobile terminal longer simultaneously, solves existing skill during machine The fast problem of mobile terminal power consumption in art.
Those of ordinary skill in the art are it is to be appreciated that combine the list of each example of the embodiments described herein description Unit and algorithm steps, being capable of being implemented in combination in electronic hardware or computer software and electronic hardware.These functions are actually To be executed with hardware or software mode, the application-specific depending on technical scheme and design constraint.Professional and technical personnel Each specific application can be used different methods to realize described function, but this realization is it is not considered that exceed The scope of the present invention.
Those skilled in the art can be understood that, for convenience and simplicity of description, the system of foregoing description, Device and the specific work process of unit, may be referred to the corresponding process in preceding method embodiment, will not be described here.
It should be understood that disclosed system, apparatus and method in several embodiments provided herein, permissible Realize by another way.For example, device embodiment described above is only schematically, for example, described unit Divide, only a kind of division of logic function, actual can have other dividing mode when realizing, for example multiple units or assembly Can in conjunction with or be desirably integrated into another system, or some features can be ignored, or does not execute.Another, shown or The coupling each other discussing or direct-coupling or communication connection can be by some interfaces, the indirect coupling of device or unit Close or communicate to connect, can be electrical, mechanical or other forms.
The described unit illustrating as separating component can be or may not be physically separate, show as unit The part showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple On NE.The mesh to realize this embodiment scheme for some or all of unit therein can be selected according to the actual needs 's.
In addition, can be integrated in a processing unit in each functional unit in each embodiment of the present invention it is also possible to It is that unit is individually physically present it is also possible to two or more units are integrated in a unit.
If described function realized using in the form of SFU software functional unit and as independent production marketing or use when, permissible It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words Partly being embodied in the form of software product of part that prior art is contributed or this technical scheme, this meter Calculation machine software product is stored in a storage medium, including some instructions with so that a computer equipment (can be individual People's computer, server, or network equipment etc.) execution each embodiment methods described of the present invention all or part of step. And aforesaid storage medium includes: u disk, portable hard drive, read only memory (rom, read-only memory), random access memory are deposited Reservoir (ram, random access memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
Above content is to further describe it is impossible to assert with reference to specific preferred implementation is made for the present invention Being embodied as of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, Without departing from making some equivalent substitutes or obvious modification on the premise of present inventive concept, and performance or purposes are identical, all should It is considered as belonging to the scope of patent protection that the present invention is determined by the claims submitted to.

Claims (11)

1. a kind of mobile terminal it is characterised in that described mobile terminal include charging inlet, charge switch, power management chip, First charging chip, the second charging chip, the first battery and the second battery;
The voltage input end of described charging inlet connects external power source, the outfan of described charging inlet include voltage output end and Data output end, described data output end includes the first data output end and the second data output end, and described charging inlet passes through Described first data output end and described second data output end are to described charge switch transmission data, the electricity of described charging inlet Pressure outfan connects the voltage input end of described charge switch, and the voltage output end of described charge switch connects described first charging Chip and the voltage input end of described second charging chip, the first voltage outfan of described first charging chip and described second The first voltage outfan of charging chip connects the voltage input end of the first battery, and the second voltage of described first charging chip is defeated Go out the voltage input end of second voltage outfan connection second battery of end and described second charging chip;
Described power management chip includes first voltage test side, and the first voltage test side of described power management chip connects institute State the voltage output end of charge switch, described power management chip includes the first outfan, the first of described power management chip Outfan connects the control end of described charge switch, and described power management chip controls institute by the control end of described charge switch State and be connected between the voltage input end of charge switch and the voltage output end of described charge switch, give described first with output voltage Charging chip and described second charging chip, described first charging chip and described second charging chip will be defeated for described charge switch The voltage going out exports to described first battery and/or described second battery to be charged simultaneously.
2. mobile terminal as claimed in claim 1 it is characterised in that
Described power management chip after the magnitude of voltage output of described charge switch is detected by described first voltage test side, According to the magnitude of voltage of described charge switch output, control the voltage of described charge switch defeated by the control end of described charge switch Enter end and be connected between the voltage output end of described charge switch or disconnect.
3. mobile terminal as claimed in claim 2 is it is characterised in that described power management chip is opened described charging is detected When the magnitude of voltage closing output is less than or equal to the first preset voltage value, described power management chip is by the control of described charge switch End processed controls the voltage input end of described charge switch and the separated of the voltage output end of described charge switch.
4. mobile terminal as claimed in claim 1 is it is characterised in that the second voltage test side of described battery management chip connects Connect the voltage input end of described first battery, the tertiary voltage test side of described power management chip connects described second battery Voltage input end;
Described power management chip is detecting described first electricity by described second voltage test side and tertiary voltage test side After the input voltage value of pond and described second battery, described power management chip according to the input voltage value of described first battery or The input voltage value of described second battery, controls the voltage input end of described charge switch by the control end of described charge switch It is connected between the voltage output end of described charge switch or disconnect.
5. mobile terminal as claimed in claim 4 is it is characterised in that described power management chip is detecting described first electricity When the input voltage value of pond or described second battery is more than or equal to the second preset voltage value, described power management chip passes through institute The control end stating charge switch controls between voltage input end and the voltage output end of described charge switch of described charge switch Disconnect.
6. mobile terminal as claimed in claim 1 is it is characterised in that the second outfan of described power management chip connects institute State the control end of the first charging chip, the 3rd outfan of described power management chip connects the control of described second charging chip End, described power management chip detects the electricity of described first battery and described second battery, and according to described first battery and First charging chip described in the electric energy control of described second battery and described second charging chip are described first battery and/or institute State the second battery to charge.
7. mobile terminal as claimed in claim 6 is it is characterised in that described power management chip detects described first battery When being respectively less than the first preset value with the electricity of described second battery, control described first charging chip and described second charging chip It is described first battery and described second battery charging simultaneously.
8. mobile terminal as claimed in claim 6 is it is characterised in that described power management chip detects described first battery Electricity be less than the first preset value, when the electricity of described second battery is more than described first preset value, control described first charging Chip and described second charging chip are that described first battery charges until the electricity of described first battery reaches described the simultaneously During one preset value, then control described first charging chip and described second charging chip be described first battery and the second battery with When charge.
9. mobile terminal as claimed in claim 6 is it is characterised in that described power management chip detects described first battery Electricity be more than the second preset value, when the electricity of described second battery is less than described second preset value, described power management chip Control described first charging chip and described second charging chip to stop charging for described first battery, and control described first to fill Electrical chip and described second charging chip are that described second battery charges until the electricity arrival of described second battery is described simultaneously Second preset value.
10. mobile terminal as claimed in any one of claims 1-9 wherein is it is characterised in that the data output of described charging inlet End is connected with the data input pin of described charge switch, the data output end of described charge switch and described power management chip Data input pin connects;
When the voltage output end of described charging inlet is short-circuited with the data output end of described charging inlet, described charging is opened Close the connection of the data input pin disconnecting described charge switch and the data output end of described charge switch, or, described power supply Managing chip controls described charge switch to disconnect the data input pin of described charge switch and the data output of described charge switch The connection at end.
11. mobile terminals as claimed in claim 1 are it is characterised in that described mobile terminal also includes first switch device, institute The voltage input end stating first switch device connects the voltage output end of described charging inlet, the voltage of described first switch device Outfan connects the voltage input end of described charge switch, and described first switch device is in open circuit when input voltage is for negative pressure State.
CN201410823367.3A 2014-12-24 2014-12-24 Mobile terminal Active CN104505890B (en)

Priority Applications (1)

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CN106849000B (en) * 2017-03-14 2020-02-18 Oppo广东移动通信有限公司 Short-circuit protection circuit, power adapter and mobile terminal
CN108899952A (en) * 2018-07-25 2018-11-27 维沃移动通信有限公司 A kind of more battery charging and discharging devices and mobile terminal
CN110854939B (en) * 2018-08-20 2021-01-01 中兴通讯股份有限公司 Method for charging double batteries, electronic device and storage medium
CN110970952A (en) * 2018-09-29 2020-04-07 Oppo广东移动通信有限公司 Charging control method and device, storage medium and split type electronic equipment
CN110970950A (en) * 2018-09-29 2020-04-07 Oppo广东移动通信有限公司 Charging control method and device, storage medium and split type electronic equipment
CN110970954A (en) * 2018-09-29 2020-04-07 Oppo广东移动通信有限公司 Charging control method and device, storage medium and split type electronic equipment

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