CN105322597A - Charging circuit and mobile terminal - Google Patents
Charging circuit and mobile terminal Download PDFInfo
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- CN105322597A CN105322597A CN201510137972.XA CN201510137972A CN105322597A CN 105322597 A CN105322597 A CN 105322597A CN 201510137972 A CN201510137972 A CN 201510137972A CN 105322597 A CN105322597 A CN 105322597A
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Abstract
The invention relates to the technical field of electrons, and provides a charging circuit. The charging circuit comprises a charging control circuit and at least two charging integrated circuits (ICs), wherein the at least two charging ICs are connected with each other in parallel; a common output end of the charging ICs is connected with a charging input end of a battery; and the charging control circuit is used for controlling the at least two charging ICs to charge the battery. The invention further provides a mobile terminal. According to the charging circuit and the mobile terminal provided by the invention, the cost can be effectively controlled when heavy current charging is achieved.
Description
Technical field
The present invention relates to electronic technology field, particularly relate to a kind of charging circuit and mobile terminal.
Background technology
Along with the capacity of the battery of existing mobile terminal is increasing, the charging interval of battery is also more and more longer, in order to shorten the charging interval of mobile terminal, charging IC (the IntegratedCircuit of big current is supported in usual employing, integrated circuit) battery is charged, but, support that the charging IC process requirements of big current is higher, make its cost high, improve the production cost of mobile terminal manufacturer.
Meanwhile, because existing mobile terminal is charged to battery by monolithic charging IC, the electric current flowing through charging IC is comparatively large, and the problem that easily during initiation charging, caloric value is large, makes mobile terminal surface temperature higher, affect user's experience.
Summary of the invention
In order to overcome, charging circuit cost in prior art is high, charging time the problems such as caloric value is large, embodiments provide a kind of charging circuit, comprise charging control circuit, described charging circuit also comprises at least two charge integrated circuit IC, described at least two charging IC are connected in parallel, its common output end is connected with battery charging input end, and described charging control circuit is battery charging at least two charging IC described in controlling.
The embodiment of the present invention provides a kind of mobile terminal on the other hand, employs above-mentioned charging circuit.
The embodiment of the present invention is powered battery by adopting charging control circuit to control at least two charging IC jointly, reduce the output current of each charging IC on the one hand, the procedure for producing of single low current charge IC requires low, inexpensive, makes the production cost of charging circuit in the embodiment of the present invention be effectively controlled; On the other hand, multiple charging IC of the embodiment of the present invention can disperse heat radiation, improve user's experience.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, 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 structural representation of the first embodiment of charging circuit of the present invention, there is shown the annexation of charging circuit and battery;
Fig. 2 is the structural representation of the second embodiment of charging circuit of the present invention, there is shown the annexation of charging circuit and battery.
Embodiment
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In describing the invention, it will be appreciated that, term " longitudinal direction ", " radial direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more, and the implication of " at least two " is also two or more.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " contact " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
When the embodiment of the present invention mentions the ordinal number such as " first ", " second ", unless the meaning of based on context its certain order of representation, should be understood to has been only the use of differentiation.
Please refer to Fig. 1, is the structural representation of the first embodiment of charging circuit of the present invention, and at least two charging IC in the present embodiment, are described for two charging IC, certainly the invention is not restricted to two charging IC, also can be three, or more than three IC that charge.This charging circuit comprises charging control circuit 1, also comprises the first charging IC2 and second charging IC3, and charging control circuit 1 is that battery 6 charges for controlling the first charging IC2 and second charging IC3.
In the present embodiment, charging control circuit 1 may be used for control first charge IC2 and second charging IC3 whether work.The annexation of the first charging IC2 and second charging IC3 can be in parallel, and the output of the first charging IC2 and the output of the second charging IC3 are connected to the input of battery 6 jointly, are namely connected with battery charging input end.
Charging circuit also comprises charging state detection circuit 4, and for detecting current charged state, charged state comprises pre-charge state, constant current charge state and constant voltage charge state.
Above-mentioned charging control circuit 1, in current charged state be pre-charge state or constant voltage charge state time, control first charging IC2 or second charging one of IC3 and charge for battery 6.
Above-mentioned charging control circuit 1, also for when current charged state is constant current charge state, controls the first charging IC2 and second charging IC3 and jointly charges for battery 6.
Due to when pre-charge state or constant voltage charge state, charging circuit does not need larger output current, and the IC that charges can be adopted to charge to battery, to reduce circuit loss and caloric value.And when constant current state, in order to promote charge efficiency, shorten the charging interval, multiple charging IC can be used to charge to battery.
In the present embodiment, charging circuit also comprises charging current detecting circuit 5, for detecting the output current of the first charging IC2 or second charging IC3.
In the present embodiment, this charging current detecting circuit 5 can comprise:
First detects resistance 51, is connected between the first charging IC2 and battery 6, calculates the output current of the first charging IC2 for being detected resistance 51 both end voltage value by measurement first;
Second detects resistance 52, is connected between the second charging IC3 and battery 6, calculates the output current of the second charging IC3 for being detected resistance 52 both end voltage value by measurement second.
The present embodiment detects the terminal voltage of resistance 51 and the second detection resistance 52 by measurement first, the output current of the first charging IC2 and second charging IC3 can be determined, method is simple and convenient, can realize charging circuit to the detection of charging current and management under the prerequisite of production control cost.
In the present embodiment, charging control circuit 1 can also be used for the supply current regulating the first charging IC2 and second charging IC3, calculate that the current maximum safe current that can bear of battery 6 is (exemplary by the capacity detecting battery 6, for the battery of 3000mAH, calculate that the maximum safe current of this battery is 4.5A), and constant-current phase by detect and regulate the first charging IC2 and second charging IC3 output current, the output current sum of the first charging IC2 and second charging IC3 is made to be equal to or slightly less than this maximum safe current, with the charge efficiency of further raising charging current, shorten the charging interval.
The embodiment of the present invention is powered battery by adopting charging control circuit to control the first charging IC and second charging IC jointly, reduce the output current of each charging IC on the one hand, the procedure for producing of single low current charge IC requires low, inexpensive, makes the production cost of charging circuit in the embodiment of the present invention be effectively controlled; On the other hand, being battery charging by adopting multiple charging IC jointly, improve the supply current of charging circuit to battery, shortening the charging interval; Again on the one hand, multiple charging IC can disperse heat radiation, improves user's experience.
Please refer to Fig. 2, it is the structural representation of the second embodiment of charging circuit of the present invention, this charging circuit comprises charging control circuit 1', also comprising the first charge integrated circuit IC2' and the second charge integrated circuit IC3', charging control circuit 1' for controlling the first charging IC2' and second charging IC3' is that battery 6' charges.
Charging circuit also comprises charging state detection circuit 4 ', and for detecting current charged state, charged state comprises pre-charge state, constant current charge state and constant voltage charge state.
Above-mentioned charging control circuit 1', in current charged state be pre-charge state or constant voltage charge state time, controlling first charging IC2' or second charging one of IC3' for battery 6' charges.
Above-mentioned charging control circuit 1', also for when current charged state is constant current charge state, controls the first charging IC2' and second charging IC3' jointly for battery 6' charges.
In the present embodiment, charging circuit also comprises temperature sensing circuit 5 ', for detecting the temperature of the first charging IC2' or second charging IC3';
Above-mentioned charging control circuit 1', for being pre-charge state or constant voltage charge state in current charged state, and the temperature of arbitrary charging IC exceedes threshold temperature, and (this threshold temperature can be systemic presupposition, also can be that user sets) time, use other charging IC to charge for battery.Exemplary, when temperature sensing circuit detects that the temperature of the first charging IC2 ' exceedes threshold temperature, charging control circuit 1' controls the first charging IC2' and quits work, and uses the second charging IC3' for battery 6 ' charging.
Above-mentioned charging control circuit 1', also for being constant current charge state in current charged state, when the temperature of IC3 ' exceedes threshold temperature and the first charging IC2 ' or second charges, reduces the output current of the first charging IC2 ' or second charging IC3'.
In the present embodiment, charging control circuit 1' can be CPU (CentralProcessingUnit, central processing unit).
The present embodiment detects the temperature of the first charging IC and second charging IC by temperature sensing circuit, and when the temperature of the first charging IC or second charging IC exceedes threshold temperature, charging control circuit control section charging IC is utilized not work, or reduce the electric current of charging IC, reach the object of the caloric value reducing mobile terminal, improve user's experience further.
The embodiment of the present invention additionally provides a kind of mobile terminal, comprise charging circuit and battery, charging circuit comprises charging control circuit, also comprises the first charging IC and second charging IC, and charging control circuit is battery charging for controlling the first charging IC and second charging IC.
Charging circuit in the present embodiment can also realize the function in above-mentioned charging circuit first embodiment and the second embodiment.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, e.g., the present invention is not limited only to comprise the first charging IC, the second charging IC, can also comprise the 3rd charging IC, the 4th charging IC etc.All any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a charging circuit, comprise charging control circuit, it is characterized in that, described charging circuit also comprises at least two charge integrated circuit IC, described at least two charging IC are connected in parallel, its common output end is connected with battery charging input end, and described charging control circuit is battery charging at least two charging IC described in controlling.
2. charging circuit as claimed in claim 1, is characterized in that, also comprise:
Charging state detection circuit, is connected with described charging control circuit, and for detecting current charged state, described charged state comprises pre-charge state, constant current charge state and constant voltage charge state;
When described charging state detection circuit detect current charged state be pre-charge state or constant voltage charge state time, notify described charging control circuit control described at least two charging IC in part charging IC be described battery charging;
When described charging state detection circuit detects that current charged state is constant current charge state, notify that described in the control of described charging control circuit, at least two charging IC are described battery charging jointly.
3. charging circuit as claimed in claim 2, is characterized in that, also comprise:
Temperature sensing circuit, for the temperature of at least two charging IC described in detecting;
Described charging control circuit, for being pre-charge state or constant voltage charge state in current charged state, and when the temperature of arbitrary charging IC exceedes threshold temperature, uses other charging IC to be the charging of described battery;
Described charging control circuit, also for being constant current charge state in current charged state, when and described at least two of charging in IC charge, the temperature of IC exceedes described threshold temperature, the output currents of a charging IC at least two charging IC described in reduction.
4. charging circuit as claimed in claim 3, is characterized in that, also comprise:
Charging current detecting circuit, for the output current of at least two charging IC described in detecting.
5. the charging circuit as described in any one of Claims 1-4, is characterized in that, described charging control circuit is central processor CPU.
6. a mobile terminal, is characterized in that, comprises the charging circuit described in any one of claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510137972.XA CN105322597B (en) | 2015-03-25 | 2015-03-25 | A kind of charging circuit and mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510137972.XA CN105322597B (en) | 2015-03-25 | 2015-03-25 | A kind of charging circuit and mobile terminal |
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| CN105322597A true CN105322597A (en) | 2016-02-10 |
| CN105322597B CN105322597B (en) | 2018-09-04 |
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| CN201510137972.XA Active CN105322597B (en) | 2015-03-25 | 2015-03-25 | A kind of charging circuit and mobile terminal |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026305A (en) * | 2016-07-28 | 2016-10-12 | 广东欧珀移动通信有限公司 | Mobile terminal |
| CN106254583A (en) * | 2016-07-28 | 2016-12-21 | 广东欧珀移动通信有限公司 | Mobile terminal |
| CN106785135A (en) * | 2016-12-20 | 2017-05-31 | 北京小米移动软件有限公司 | Multichannel charging method, device and equipment |
| CN107302245A (en) * | 2017-06-26 | 2017-10-27 | 宇龙计算机通信科技(深圳)有限公司 | A kind of charge control method and terminal |
| CN107834640A (en) * | 2017-11-14 | 2018-03-23 | 维沃移动通信有限公司 | A kind of charging method and terminal |
| CN112019681A (en) * | 2019-05-31 | 2020-12-01 | 北京小米移动软件有限公司 | Control method of mobile terminal, mobile terminal and storage medium |
| CN114362327A (en) * | 2022-02-16 | 2022-04-15 | 北京小米移动软件有限公司 | Charging method and device, electronic equipment and non-transitory readable storage medium |
| CN114498811A (en) * | 2021-12-24 | 2022-05-13 | 荣耀终端有限公司 | Charging management module, charging circuit, charging control method and electronic equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3758839A (en) * | 1971-10-04 | 1973-09-11 | Fox Prod Co | Current and voltage controlled battery charger |
| CN201590668U (en) * | 2009-10-22 | 2010-09-22 | 中兴通讯股份有限公司 | Charging device for mobile terminal |
| CN203086213U (en) * | 2013-02-06 | 2013-07-24 | 深圳市金泰克半导体有限公司 | Rapid charger and mobile power supply with the charger |
| CN103904377A (en) * | 2014-03-28 | 2014-07-02 | 深圳市中兴移动通信有限公司 | Quick charging method and mobile terminal |
| CN104410116A (en) * | 2014-11-18 | 2015-03-11 | 深圳市中兴移动通信有限公司 | Quick charging device and quick charging method |
-
2015
- 2015-03-25 CN CN201510137972.XA patent/CN105322597B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3758839A (en) * | 1971-10-04 | 1973-09-11 | Fox Prod Co | Current and voltage controlled battery charger |
| CN201590668U (en) * | 2009-10-22 | 2010-09-22 | 中兴通讯股份有限公司 | Charging device for mobile terminal |
| CN203086213U (en) * | 2013-02-06 | 2013-07-24 | 深圳市金泰克半导体有限公司 | Rapid charger and mobile power supply with the charger |
| CN103904377A (en) * | 2014-03-28 | 2014-07-02 | 深圳市中兴移动通信有限公司 | Quick charging method and mobile terminal |
| CN104410116A (en) * | 2014-11-18 | 2015-03-11 | 深圳市中兴移动通信有限公司 | Quick charging device and quick charging method |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026305A (en) * | 2016-07-28 | 2016-10-12 | 广东欧珀移动通信有限公司 | Mobile terminal |
| CN106254583A (en) * | 2016-07-28 | 2016-12-21 | 广东欧珀移动通信有限公司 | Mobile terminal |
| CN106785135A (en) * | 2016-12-20 | 2017-05-31 | 北京小米移动软件有限公司 | Multichannel charging method, device and equipment |
| CN107302245A (en) * | 2017-06-26 | 2017-10-27 | 宇龙计算机通信科技(深圳)有限公司 | A kind of charge control method and terminal |
| CN107834640A (en) * | 2017-11-14 | 2018-03-23 | 维沃移动通信有限公司 | A kind of charging method and terminal |
| CN112019681A (en) * | 2019-05-31 | 2020-12-01 | 北京小米移动软件有限公司 | Control method of mobile terminal, mobile terminal and storage medium |
| CN112019681B (en) * | 2019-05-31 | 2021-10-26 | 北京小米移动软件有限公司 | Control method of mobile terminal, mobile terminal and storage medium |
| CN114498811A (en) * | 2021-12-24 | 2022-05-13 | 荣耀终端有限公司 | Charging management module, charging circuit, charging control method and electronic equipment |
| CN114498811B (en) * | 2021-12-24 | 2022-12-20 | 荣耀终端有限公司 | Charging management module, charging circuit, charging control method and electronic equipment |
| CN114362327A (en) * | 2022-02-16 | 2022-04-15 | 北京小米移动软件有限公司 | Charging method and device, electronic equipment and non-transitory readable storage medium |
| CN114362327B (en) * | 2022-02-16 | 2024-04-23 | 北京小米移动软件有限公司 | Charging method and device, electronic equipment and non-transitory readable storage medium |
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|---|---|
| CN105322597B (en) | 2018-09-04 |
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