CN205141721U - Battery voltage -multiplying charging circuit and mobile terminal - Google Patents
Battery voltage -multiplying charging circuit and mobile terminal Download PDFInfo
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- CN205141721U CN205141721U CN201520835602.9U CN201520835602U CN205141721U CN 205141721 U CN205141721 U CN 205141721U CN 201520835602 U CN201520835602 U CN 201520835602U CN 205141721 U CN205141721 U CN 205141721U
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Abstract
An embodiment of the utility model provides a battery voltage -multiplying charging circuit and mobile terminal, wherein charging circuit includes: charge port, high -pressure battery charging unit, low pressure battery charging unit, group battery and system, the group battery includes a main battery and an at least secondary cell, wherein, high -pressure battery charging unit and low pressure battery charging unit link to each other with the port that charges respectively, and low pressure battery charging unit links to each other with system, group battery respectively, high pressure battery charging unit links to each other with the group battery, when carrying out the quick charge, main battery and each secondary cell are switched to the series connection state, and charging voltage is through port transmission to high -pressure battery charging unit and the low pressure battery charging unit of charging, are charged in to main battery and each secondary cell by high -pressure battery charging unit, simultaneously, be the mains power supply by low pressure battery charging unit, when finishing when charging, main battery and each the secondary cell switched to parallelly connected state be the mains power supply. Through the utility model discloses battery voltage -multiplying charging circuit that implementation provided can avoid the too high problem of generating heat in the cell ontology charging process.
Description
Technical field
The utility model relates to cell art, particularly relates to battery multiplication of voltage charging circuit and mobile terminal.
Background technology
Along with the increase of cell phone battery capacity, how realizing quickly charging battery has become one of hot spot technology instantly.Industry generally defines charging mobile phone battery speed with xC (as 0.7C, C, 1.5C, 2C etc.), and wherein C is the capacity of battery, and x is rate of charge, and when battery capacity is identical, the rate of charge larger charging interval is shorter.But the lifting of rate of charge is more for cost with the reduction of energy density and higher charging temperature rise concerning battery of mobile phone design.No matter that the capacity of battery increases (such as changing to 3000mAh from 2000mAh) or the increase of rate of charge, final all by requirement higher for the proposition of the through-current capability of the charging circuit to whole mobile phone, such as 3000mAh battery, 1C charging needs charging paths to provide 3000mA electric current, and 2C charging then requires that charging paths has the providing capability of 6000mA electric current.Moreover, while the road current sourcing ability considering charging, the problem of battery body heating when also needing to consider large current charge.Visible, realize quickly charging battery not only to battery itself, the design for charging circuit, heat radiation is all a challenge greatly.
Existing quickly charging battery scheme mainly can be divided into following two classes:
As shown in Figure 1, this concrete scheme is the charging rack composition of first kind battery charging schedule: the electric current that AC (alternatingcurrent, alternating current) charger exports directly is input into battery, not via middle charhing unit and PMIC conversion.
Although this scheme can be transferred to the thermal losses of charging paths on AC charger, make the heating of mobile phone terminal can obtain part and effectively control.But there is following shortcoming: the first, AC charger design is complicated, and need AC charger and mobile phone real-time communication, the state of Real-time Obtaining battery of mobile phone adjusts charged state.The second, the program can only transfer to AC charger end the heat that traditional charhing unit produces, battery of mobile phone body cannot be solved to charge the temperature rise caused by big current to realize large multiplying power, due to the intensification problem that battery body causes because of big current cannot be solved, therefore, the program cannot promote rate of charge further, and experiment proves that 1.5C has been the limit of the quick charge that this kind of scheme can provide.Three, large current charge is adopted, strict control is also needed to the through-flow impedance of charge tunnel, therefore, connector, charging port, charge cable all need special selection, this will cause charging accessories not have versatility, charging current upgrading each time, all needs corresponding upgrading charge cable and charging inlet, realizes cost high.
Equations of The Second Kind battery charging schedule is high-voltage charging scheme, charging rack composition as shown in Figure 2, this concrete scheme is: by promoting the output voltage of AC charger, under use general connector, charging inlet and charge cable, make electric energy high power transmission to mobile phone charging port, then increase the output current ability of charhing unit to realize the quick charge of fast hand machine battery.
Existing Equations of The Second Kind battery charging schedule, although not high to the designing requirement of AC charger, and the existing charging inlet of reusable, cable, the versatility of charging accessories is good.But still there is following shortcoming: the first, the conversion efficiency of charhing unit is about 90%, the power passed through is higher, power loss is larger, corresponding heating is more serious, although adopt two-way scheme to divide heat radiation, but experiment proves preferably at present through-flowly also only can reach 4.5A, cannot meet the demand of the raising charging current along with the lifting of battery capacity.Also just mean, this kind of battery charging schedule is limited to the power supply capacity of charhing unit.The second, the problem of heat that battery itself brings due to large current charge also still can not get solving.
Visible, all there is battery body heating problem when using large current charge in existing quickly charging battery scheme.
Summary of the invention
The utility model embodiment provides battery multiplication of voltage charging circuit and mobile terminal, in order to solve existing quickly charging battery scheme exist use large current charge time battery body heating problem.
In order to solve the problem, the utility model discloses a kind of battery multiplication of voltage charging circuit, comprise: charging port, high-voltage charging unit, low pressure charhing unit, battery pack and system, wherein, described battery pack comprises one piece of main battery and at least one piece of secondary cell; Wherein, described high-voltage charging unit is connected with described charging port respectively with described low pressure charhing unit, and described low pressure charhing unit is connected with described system, described battery pack respectively; Described high-voltage charging unit is connected with described battery pack; When carrying out quick charge, described main battery and each described secondary cell are switched to series connection, charging voltage transfers to described high-voltage charging unit and described low pressure charhing unit by described charging port, is charged in described main battery and each described secondary cell by described high-voltage charging unit; Meanwhile, be described system power supply by described low pressure charhing unit; When charging complete, it is described system power supply that described main battery and each described secondary cell are switched to parallel connection.
In order to solve the problem, the invention also discloses a kind of mobile terminal, described mobile terminal comprises: battery multiplication of voltage charging circuit; Wherein, described battery multiplication of voltage charging circuit comprises: charging port, high-voltage charging unit, low pressure charhing unit, battery pack and system, and wherein, described battery pack comprises one piece of main battery and at least one piece of secondary cell; Described high-voltage charging unit is connected with described charging port respectively with described low pressure charhing unit, and described low pressure charhing unit is connected with described system, described battery pack respectively; Described high-voltage charging unit is connected with described battery pack; When carrying out quick charge, described main battery and each described secondary cell are switched to series connection, charging voltage transfers to described high-voltage charging unit and described low pressure charhing unit by described charging port, is charged in described main battery and each described secondary cell by described high-voltage charging unit; Meanwhile, be described system power supply by described low pressure charhing unit; When charging complete, it is described system power supply that described main battery and each described secondary cell are switched to parallel connection.
The battery multiplication of voltage charging circuit that the utility model embodiment provides comprises: high-voltage charging unit, low pressure charhing unit and one comprise the battery pack of one piece of main battery and at least one piece of secondary cell.When carrying out quick charge, main battery and each secondary cell are switched to series connection, provide multiplication of voltage namely to charge higher than the voltage of existing common charging voltage several times by high-voltage charging unit.Adopt multiplication of voltage to carry out the scheme of charging, the charging rate of battery pack can be promoted.Further, due to each serial battery in battery pack, although charging voltage promotes, still can not promote the current value that every block battery circulates, therefore, the problem of the battery-heating brought because battery circulating current is excessive can not be caused.Visible, the utility model implements the battery multiplication of voltage charging circuit provided, and while providing quick charge for battery, can effectively solve the problem of the battery-heating that battery body causes because of current boost.In addition, the battery multiplication of voltage charging circuit that the utility model embodiment provides, when charging for battery, being arranged to by low pressure charhing unit is system power supply, and without the need to being system power supply by battery pack to be charged, compared to existing battery charging schedule, battery needs charging limit, limit to be system power supply, can promote the charging rate of battery equally.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the charging rack composition of existing first kind quick charge scheme;
Fig. 2 is the charging rack composition of existing Equations of The Second Kind quick charge scheme;
Fig. 3 is the schematic diagram of a kind of battery multiplication of voltage charging circuit according to the utility model embodiment one;
Fig. 4 is the schematic diagram of a kind of battery multiplication of voltage charging circuit according to the utility model embodiment two.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one
With reference to Fig. 3, show the schematic diagram of a kind of battery multiplication of voltage charging circuit of the utility model embodiment one.
The battery multiplication of voltage charging circuit of the utility model embodiment comprises: charging port 301, high-voltage charging unit 302, low pressure charhing unit 303, battery pack 304 and system 305, wherein, described battery pack 304 comprises one piece of main battery 3041 and one piece of secondary cell 3042.
Wherein, high-voltage charging unit 302 is connected with charging port 301 respectively with low pressure charhing unit 303, and low pressure charhing unit 303 is connected with system 305, battery pack 304 respectively; High-voltage charging unit 302 is connected with battery pack 304.
When carrying out quick charge, main battery 3041 and secondary cell are switched to series connection, charging voltage transfers to high-voltage charging unit 302 and low pressure charhing unit 303 by charging port 301, is charged in main battery 3041 and secondary cell 3042 by high-voltage charging unit 302; Meanwhile, powered for system 305 by low pressure charhing unit 303; When charging complete, it is that system 305 is powered that main battery 3041 and secondary cell 3042 are switched to parallel connection.
When carrying out quick charge, being arranged to by low pressure charhing unit is system power supply, and without the need to being system power supply by battery pack to be charged, the charging that battery pack is single-minded.Compared to existing battery charger, battery needs charging limit, limit to be system power supply, can promote the charging rate of battery.
It should be noted that, if comprise polylith secondary cell in battery pack, so, when carrying out quick charge, main battery is all connected with each piece of secondary cell.When charging complete, each piece of secondary cell is all switched to the state in secondary cell parallel connection.
Adopt the battery multiplication of voltage charging circuit that the utility model embodiment provides, although use multiplication of voltage still due to each piece of serial battery in battery pack, therefore, it is possible to effectively reduce the current value that each piece of battery in battery pack circulates, and then the heating of battery body when can reduce charging.The utility model implements the battery multiplication of voltage charging circuit provided, and traditional charge construction can be used to realize quick charge, is not limited to again the lifting of following rate of charge simultaneously.Such as suppose that the battery of use two pieces of 2000mAh realizes 4000mAh charging, if be 3000mA for charging current monoblock battery during the charging of series connection multiplication of voltage, rate of charge is exactly 1.5C, even if rate of charge will reach 2C, charging current also only needs 4A, and existing charhing unit can solve completely.
It should be noted that, be only that exemplary illustrating in battery pack comprises one piece of secondary cell in fig. 3.But, in specific implementation process, be not limited in the battery pack of showing in the utility model embodiment and one piece of secondary cell be only set, two pieces, three pieces, four pieces or more polylith secondary cell can also be set.The setting of the concrete number of secondary cell, by those skilled in the art, can arrange according to the actual requirements, does not do concrete restriction in the utility model embodiment to this in specific implementation process.
The battery multiplication of voltage charging circuit that the utility model embodiment provides goes for mobile terminal suitable arbitrarily, such as: mobile phone, panel computer etc., for mobile terminal provides quick-charge function.
The battery multiplication of voltage charging circuit provided by the utility model embodiment, when carrying out quick charge, main battery and each secondary cell are switched to series connection, provide multiplication of voltage namely to charge higher than the voltage of existing common charging voltage several times by high-voltage charging unit.Adopt multiplication of voltage to carry out the method for charging, the charging rate of battery pack can be promoted.Further, due to each serial battery in battery pack, although charging voltage promotes, still can not promote the current value that every block battery circulates, therefore, the problem of the battery-heating brought because battery circulating current is excessive can not be caused.Visible, the utility model implements the battery multiplication of voltage charging circuit provided, and while providing quick charge for battery, can effectively solve the problem of the battery-heating that battery body causes because of current boost.
Embodiment two
With reference to Fig. 4, show the schematic diagram of a kind of battery multiplication of voltage charging circuit of the utility model embodiment two.
As shown in Figure 4, the battery multiplication of voltage charging circuit that the utility model embodiment provides comprises: charging port and Chargingport, high-voltage charging unit and HighvoltagePMIC, low pressure charhing unit, battery pack and system, wherein, battery pack comprises one piece of main battery and Mainbattery and piece secondary cell and Sendbattery; Its mesolow charhing unit is common charhing unit NomalPMIC, for battery pack provides the charging of normal mode.
As shown in Figure 4, the high-voltage charging unit in battery multiplication of voltage charging circuit is connected with charging port respectively with low pressure charhing unit, and low pressure charhing unit is connected with system, battery pack respectively, and high-voltage charging unit is also connected with battery pack.Particularly, the first diverter switch is provided with between the positive pole of the positive pole of secondary cell and the positive pole of high-voltage charging unit and low pressure charhing unit; The second diverter switch is provided with between the negative pole of secondary cell and main battery positive pole and main battery negative pole; The negative pole of main battery is connected with the negative pole of the negative pole of high-voltage charging unit and low pressure charhing unit.The 3rd diverter switch is provided with between the positive pole of main battery and the positive pole of low pressure charhing unit.Further, between the positive pole and the positive pole of low pressure charhing unit of main battery, be provided with triode, and triode is in parallel with the 3rd diverter switch.Wherein, the first diverter switch and the second diverter switch can be single-pole double-throw switch (SPDT), and the 3rd diverter switch is single-pole single-throw switch (SPST).
When carrying out quick charge, the positive pole of secondary cell and the positive pole conducting of high-voltage charging unit is made by regulating the first diverter switch, by regulating the second diverter switch to make the negative pole of secondary cell and the positive pole conducting of main battery, by regulating the 3rd diverter switch, the positive pole of main battery and the positive pole of low pressure charhing unit are disconnected.
By adopting as upper type adjusts three diverter switches, it is battery-powered for can controlling battery multiplication of voltage charging circuit by high-voltage charging unit, is system power supply by low pressure charhing unit, and, make the main battery in battery pack become series connection with secondary cell.Finally realize multiplication of voltage and do not increase each piece of alive quick charge flow process in battery upper reaches in battery pack.
When quick charge is complete, by regulating the second diverter switch to make the negative pole of secondary cell and the negative pole conducting of main battery, making main battery and secondary cell be switched to parallel connection is system power supply.
In the utility model embodiment, being the object that the 3rd diverter switch is arranged in parallel triode in multiplication of voltage charging circuit is, when the 3rd diverter switch disconnects (when namely the positive pole of main battery and the positive pole of low pressure charhing unit disconnect), the output voltage of low pressure charhing unit is set higher than main battery maximum charging voltage, because the output voltage of low pressure charhing unit is higher than the voltage of main battery end, therefore, triode not conducting, like this, just can realize by low pressure charhing unit is system power supply, instead of is system power supply by main battery.
When carrying out normal charge, the positive pole of secondary cell and the positive pole conducting of low pressure charhing unit is made by regulating the first diverter switch, by regulating the second diverter switch to make the negative pole of secondary cell and the negative pole conducting of main battery, make the positive pole of main battery and the positive pole conducting of low pressure charhing unit by regulating the 3rd diverter switch.
By adopting as upper type adjusts three diverter switches, it is battery-powered for can controlling battery multiplication of voltage charging circuit by low pressure charhing unit, is system power supply by main battery, and, make the main battery in battery pack become parallel connection with secondary cell.That is, adopt conventional voltage to be that battery pack is charged, and charging limit, battery pack limit is system power supply.
Visible, the battery multiplication of voltage charging circuit that the utility model embodiment provides, does not abandon NormalPMIC, if do not use special quick charger, also can enable Normalcharger and charge to battery.This battery multiplication of voltage charging circuit both can meet the demand to quickly charging battery, can meet again the demand of battery being carried out to normal charge.Whether charging circuit can employ quick charger according to user and determine to adopt which kind of charging modes.In order to ensure charge balancing, when using multiplication of voltage charging and quick charge, the single-pole single-throw switch (SPST) shown in figure i.e. the 3rd diverter switch is needed to disconnect, setting NormalPMIC output voltage is higher than battery maximum charging voltage, utilize NormalPMIC to system power supply, thus avoid system to the shunting of charging current.
Concrete, battery multiplication of voltage charging circuit is when carrying out quick charge or normal charge to battery in selection, carries out the switching of charge mode according to the charger connected.If the charger connected is quick charger, then carry out quick charge, if when the charger connected is ordinary power charger, then carry out normal charge.
It should be noted that, it is only the explanation carried out to comprise a secondary cell in battery pack in the utility model embodiment, in specific implementation process, two pieces, three pieces, four pieces or more polylith secondary cell can also be set in battery pack, the setting of concrete block number can be arranged according to the actual requirements by those skilled in the art, does not do concrete restriction in the utility model embodiment to this.
Table 1 for when comprise in battery pack different masses battery, use charging circuit carry out quick charge time, the statistical form of the output voltage of the ceiling voltage that the battery after series connection bears, the unit of high-voltage charging and the output voltage of AC charger.
Table 1
| Series connection ceiling voltage | PMIC output voltage | AC charger output voltage | |
| 2 serial battery | 8.8V | 9V | 9V |
| 3 serial battery | 13.4V | 14V | 15V |
| 4 serial battery | 17.8V | 18V | 20V |
During the utility model is implemented, design for battery multiplication of voltage charging circuit need pay close attention to following four aspects: the AC charger that the first, can mate use with multiplication of voltage charging circuit, this means suitable is also uncomplicated, only needs and has handshake mechanism with mobile phone, realizes boosting and exports.AC charger can use quick charger ripe in the market; Also can self-developing AC charger, self-developing charge protocol, only needing handshake mechanism can boost, without the need to real-time monitoring battery charged state.The second, existing charging accessories is used entirely can to meet the instructions for use of quick charge for charging inlet, charge cable.Three, the design of charhing unit, can compatible multiplication of voltage charging and common charging.Four, battery serioparallel exchange, each piece of battery under normal mode in battery pack is parallel join, and each piece of battery only when needing quick charge in battery pack is just connected in series.Serioparallel exchange is switched can be realized by diverter switch, but needs to ensure main battery connecting system all the time, with after normal charge or charging complete, is system power supply.
In the utility model embodiment except the operation principle of battery multiplication of voltage charging circuit is described, additionally provide the method whether battery judged in battery pack is impaired:
Due to each piece of battery serial charging in battery pack, parallel discharge, therefore, the total electricity of battery pack can be reported by the method for only adding up Mainbattery discharge and recharge, also can distinguish in-built electrical gauge in each piece of battery, the electricity of each piece of battery be carried out add up to determine the total electricity of battery pack; Then, after determining total electricity of battery pack, the total electricity do not existed in defective cell situation in the total electricity obtained and battery pack is compared, if total electricity of twice battery pack differs greatly, namely can judge the battery damage in battery pack.
The battery multiplication of voltage charging circuit provided by the utility model embodiment, when carrying out quick charge, main battery and each secondary cell are switched to series connection, provide multiplication of voltage namely to charge higher than the voltage of existing common charging voltage several times by high-voltage charging unit.Adopt multiplication of voltage to carry out the method for charging, the charging rate of battery pack can be promoted.Further, due to each serial battery in battery pack, although charging voltage promotes, still can not promote the current value that every block battery circulates, therefore, the problem of the battery-heating brought because battery circulating current is excessive can not be caused.Visible, the utility model implements the battery multiplication of voltage charging circuit provided, and while providing quick charge for battery, can effectively solve the problem of the battery-heating that battery body causes because of current boost.
Also claimed a kind of mobile terminal in the utility model embodiment; this kind of mobile terminal comprises battery multiplication of voltage charging circuit required for protection in the application; can be arranged according to the actual requirements by those skilled in the art for circuit concrete setting position in the terminal, in the utility model embodiment, this be repeated no more.
The battery multiplication of voltage charging circuit comprised in the mobile terminal of the utility model embodiment comprises: charging port, high-voltage charging unit, low pressure charhing unit, battery pack and system, and wherein, described battery pack comprises one piece of main battery and at least one piece of secondary cell; Described high-voltage charging unit is connected with described charging port respectively with described low pressure charhing unit, and described low pressure charhing unit is connected with described system, described battery pack respectively; Described high-voltage charging unit is connected with described battery pack.
When carrying out quick charge, described main battery and each described secondary cell are switched to series connection, charging voltage transfers to described high-voltage charging unit and described low pressure charhing unit by described charging port, is charged in described main battery and each described secondary cell by described high-voltage charging unit; Meanwhile, be described system power supply by described low pressure charhing unit; When charging complete, it is described system power supply that described main battery and each described secondary cell are switched to parallel connection.
Preferably, one piece of secondary cell is only comprised in the battery pack in the battery multiplication of voltage charging circuit comprised in mobile terminal; The first diverter switch is provided with between the positive pole of the positive pole of battery and the positive pole of described high-voltage charging unit and described low pressure charhing unit; The second diverter switch is provided with between the negative pole of described secondary cell and described main battery positive pole and described main battery negative pole; The negative pole of described main battery is connected with the negative pole of the negative pole of described high-voltage charging unit and described low pressure charhing unit; The 3rd diverter switch is provided with between the positive pole of described main battery and the positive pole of described low pressure charhing unit.
Preferably, when carrying out quick charge, positive pole conducting by regulating described first diverter switch to make the positive pole of described secondary cell and described high-voltage charging unit in described battery multiplication of voltage charging circuit, by the positive pole conducting regulating described second diverter switch to make the negative pole of described secondary cell and described main battery, by regulating described 3rd diverter switch, the positive pole of the positive pole of described main battery and described low pressure charhing unit is disconnected.
Preferably, when carrying out normal charge, in described battery multiplication of voltage charging circuit, by the positive pole conducting regulating described first diverter switch to make the positive pole of described secondary cell and described low pressure charhing unit, by the negative pole conducting regulating described second diverter switch to make the negative pole of described secondary cell and described main battery, make the positive pole conducting of the positive pole of described main battery and described low pressure charhing unit by regulating described 3rd diverter switch.
Preferably, in described battery multiplication of voltage charging circuit, between the positive pole of described main battery and the positive pole of described low pressure charhing unit, be provided with triode, and described triode is in parallel with described 3rd diverter switch.
For the concrete structure of the battery multiplication of voltage charging circuit comprised in mobile terminal, see the battery multiplication of voltage charging circuit in embodiment one, embodiment two, can not repeat them here.
Device embodiment described above is only schematic, the wherein said unit illustrated as separating component or can may not be and physically separates, parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of module wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.Those of ordinary skill in the art, when not paying performing creative labour, are namely appreciated that and implement.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that each execution mode can add required general hardware platform by software and realize, and can certainly pass through hardware.Based on such understanding, technique scheme can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product can store in a computer-readable storage medium, as ROM/RAM, magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the method described in some part of each embodiment or embodiment.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (10)
1. a battery multiplication of voltage charging circuit, is characterized in that, comprising: charging port, high-voltage charging unit, low pressure charhing unit, battery pack and system, and wherein, described battery pack comprises one piece of main battery and at least one piece of secondary cell;
Wherein, described high-voltage charging unit is connected with described charging port respectively with described low pressure charhing unit, and described low pressure charhing unit is connected with described system, described battery pack respectively;
Described high-voltage charging unit is connected with described battery pack;
When carrying out quick charge, described main battery and each described secondary cell are switched to series connection, charging voltage transfers to described high-voltage charging unit and described low pressure charhing unit by described charging port, is charged in described main battery and each described secondary cell by described high-voltage charging unit; Meanwhile, be described system power supply by described low pressure charhing unit;
When charging complete, it is described system power supply that described main battery and each described secondary cell are switched to parallel connection.
2. charging circuit according to claim 1, is characterized in that, only comprises one piece of secondary cell in described battery pack;
The first diverter switch is provided with between the positive pole of the positive pole of described secondary cell and the positive pole of described high-voltage charging unit and described low pressure charhing unit;
The second diverter switch is provided with between the negative pole of described secondary cell and described main battery positive pole and described main battery negative pole; The negative pole of described main battery is connected with the negative pole of the negative pole of described high-voltage charging unit and described low pressure charhing unit;
The 3rd diverter switch is provided with between the positive pole of described main battery and the positive pole of described low pressure charhing unit.
3. charging circuit according to claim 2, is characterized in that:
When carrying out quick charge, by the positive pole conducting regulating described first diverter switch to make the positive pole of described secondary cell and described high-voltage charging unit, by the positive pole conducting regulating described second diverter switch to make the negative pole of described secondary cell and described main battery, by regulating described 3rd diverter switch, the positive pole of the positive pole of described main battery and described low pressure charhing unit is disconnected.
4. charging circuit according to claim 2, is characterized in that:
When carrying out normal charge, by the positive pole conducting regulating described first diverter switch to make the positive pole of described secondary cell and described low pressure charhing unit, by the negative pole conducting regulating described second diverter switch to make the negative pole of described secondary cell and described main battery, make the positive pole conducting of the positive pole of described main battery and described low pressure charhing unit by regulating described 3rd diverter switch.
5. charging circuit according to claim 4, is characterized in that:
Between the positive pole and the positive pole of described low pressure charhing unit of described main battery, be provided with triode, and described triode is in parallel with described 3rd diverter switch.
6. a mobile terminal, is characterized in that, described mobile terminal comprises: battery multiplication of voltage charging circuit;
Wherein, described battery multiplication of voltage charging circuit comprises: charging port, high-voltage charging unit, low pressure charhing unit, battery pack and system, and wherein, described battery pack comprises one piece of main battery and at least one piece of secondary cell;
Described high-voltage charging unit is connected with described charging port respectively with described low pressure charhing unit, and described low pressure charhing unit is connected with described system, described battery pack respectively;
Described high-voltage charging unit is connected with described battery pack;
When carrying out quick charge, described main battery and each described secondary cell are switched to series connection, charging voltage transfers to described high-voltage charging unit and described low pressure charhing unit by described charging port, is charged in described main battery and each described secondary cell by described high-voltage charging unit; Meanwhile, be described system power supply by described low pressure charhing unit;
When charging complete, it is described system power supply that described main battery and each described secondary cell are switched to parallel connection.
7. mobile terminal according to claim 6, is characterized in that, only comprises one piece of secondary cell in described battery pack;
The first diverter switch is provided with between the positive pole of the positive pole of described secondary cell and the positive pole of described high-voltage charging unit and described low pressure charhing unit;
The second diverter switch is provided with between the negative pole of described secondary cell and described main battery positive pole and described main battery negative pole; The negative pole of described main battery is connected with the negative pole of the negative pole of described high-voltage charging unit and described low pressure charhing unit;
The 3rd diverter switch is provided with between the positive pole of described main battery and the positive pole of described low pressure charhing unit.
8. mobile terminal according to claim 7, is characterized in that:
When carrying out quick charge, positive pole conducting by regulating described first diverter switch to make the positive pole of described secondary cell and described high-voltage charging unit in described battery multiplication of voltage charging circuit, by the positive pole conducting regulating described second diverter switch to make the negative pole of described secondary cell and described main battery, by regulating described 3rd diverter switch, the positive pole of the positive pole of described main battery and described low pressure charhing unit is disconnected.
9. mobile terminal according to claim 8, is characterized in that:
When carrying out normal charge, in described battery multiplication of voltage charging circuit, by the positive pole conducting regulating described first diverter switch to make the positive pole of described secondary cell and described low pressure charhing unit, by the negative pole conducting regulating described second diverter switch to make the negative pole of described secondary cell and described main battery, make the positive pole conducting of the positive pole of described main battery and described low pressure charhing unit by regulating described 3rd diverter switch.
10. mobile terminal according to claim 9, is characterized in that:
In described battery multiplication of voltage charging circuit, between the positive pole of described main battery and the positive pole of described low pressure charhing unit, be provided with triode, and described triode is in parallel with described 3rd diverter switch.
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| CN201520835602.9U CN205141721U (en) | 2015-10-26 | 2015-10-26 | Battery voltage -multiplying charging circuit and mobile terminal |
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| CN (1) | CN205141721U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105978049A (en) * | 2015-10-26 | 2016-09-28 | 乐视移动智能信息技术（北京）有限公司 | Battery voltage-multiplying charging circuit and mobile terminal |
| WO2018068242A1 (en) * | 2016-10-12 | 2018-04-19 | 广东欧珀移动通信有限公司 | Mobile terminal |
| CN111146945A (en) * | 2019-12-30 | 2020-05-12 | 洛阳隆盛科技有限责任公司 | High-voltage and low-voltage switching circuit and method based on high-voltage relay |
| US11056896B2 (en) | 2016-10-12 | 2021-07-06 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Terminal and device |
| US11171499B2 (en) | 2017-04-13 | 2021-11-09 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Device to be charged with multiple charging channels, charging method, and charging control circuit with multiple charging channels |
-
2015
- 2015-10-26 CN CN201520835602.9U patent/CN205141721U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105978049A (en) * | 2015-10-26 | 2016-09-28 | 乐视移动智能信息技术（北京）有限公司 | Battery voltage-multiplying charging circuit and mobile terminal |
| WO2017071280A1 (en) * | 2015-10-26 | 2017-05-04 | 乐视控股（北京）有限公司 | Battery voltage doubler charging circuit and mobile terminal |
| WO2018068242A1 (en) * | 2016-10-12 | 2018-04-19 | 广东欧珀移动通信有限公司 | Mobile terminal |
| US11056896B2 (en) | 2016-10-12 | 2021-07-06 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Terminal and device |
| US11171499B2 (en) | 2017-04-13 | 2021-11-09 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Device to be charged with multiple charging channels, charging method, and charging control circuit with multiple charging channels |
| US11631985B2 (en) | 2017-04-13 | 2023-04-18 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Device to be charged with multiple charging channels, charging method, and charging control circuit with multiple charging channels |
| CN111146945A (en) * | 2019-12-30 | 2020-05-12 | 洛阳隆盛科技有限责任公司 | High-voltage and low-voltage switching circuit and method based on high-voltage relay |
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