CN103219769B - Method for charging batteries, batter-charghing system and mobile terminal - Google Patents

Method for charging batteries, batter-charghing system and mobile terminal Download PDF

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Publication number
CN103219769B
CN103219769B CN201310134793.1A CN201310134793A CN103219769B CN 103219769 B CN103219769 B CN 103219769B CN 201310134793 A CN201310134793 A CN 201310134793A CN 103219769 B CN103219769 B CN 103219769B
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China
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preset value
charging
battery
current
size
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CN201310134793.1A
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Chinese (zh)
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CN103219769A (en
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王杰
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广东欧珀移动通信有限公司
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Abstract

The invention discloses a kind of method for charging batteries, for charging to the battery of electronic equipment, comprise the following steps: the supply current that the feeder ear that initial condition controls electronic equipment exports is the first preset value, detect the charging current of described battery, size according to described charging current judges the operating state of the system of electronic equipment and the charged state of battery, and in described system during in running order or busy state, reduce described supply current size be in small-power charged state to make described battery or stop charging, keep described supply current to be the first preset value when described system is in holding state or little power consumption state, thus pass through dynamic conditioning charging current in a charging situation, reach the object reducing complete machine temperature rise, can not temperature be too high because battery charging when making system works.The invention also discloses corresponding batter-charghing system and the mobile terminal with this batter-charghing system.

Description

Method for charging batteries, batter-charghing system and mobile terminal

Technical field

The present invention relates to electronic applications, particularly relate to a kind of method for charging batteries, batter-charghing system that electronic equipment is charged.

Background technology

Along with the development of smart mobile phone, large-screen, sharpness screen, high-pixel camera head, what have even goes back configuring external ISP picture processing chip to promote effect of taking pictures.Support HD video is play.Meanwhile mobile phone games function is also from strength to strength, and the present mobile phone of game can only played on computers before a lot of also can be played.All these all can increase the power consumption of mobile phone greatly, and namely power consumption stream is very large, and the thing followed is exactly the raising of mobile phone temperature rise.Especially present smart mobile phone, more and more toward frivolous future development, makes mobile phone heat-dissipating space be compressed further, causes the thermal design of mobile phone to face very large difficulty, is also current awfully hot research topic.

After deliberation, play HD video, high definition pattern is made a video recording, and playing games and charging is four large principal elements of mobile phone temperature rise.If charging+high-definition camera or charging+HD video are play or charging+game simultaneously, mobile phone temperature rise can raise further, can reach degree more than 60 even higher.And play games in charging limit in limit for smart mobile phone, it is the scene often run into that HD video (such as seeing a film online) is play on charging limit, limit, now too high body temperature not only can affect the mobile phone life-span, and will inevitably the very bad impression of user and experience be given, even can allow user's citing security concerns.

Therefore a kind of New-type charge method solved the problem is badly in need of.

Summary of the invention

The object of this invention is to provide a kind of method for charging batteries, this method for charging batteries passes through mobile phone in a charging situation and detects with dynamic conditioning charging current the charging current flowing to battery, thus reach the object reducing complete machine temperature rise, can not temperature be too high because battery charging when making system works.

Another object of the present invention is to provide a kind of batter-charghing system, can not temperature is too high because battery charging when this batter-charghing system makes the system works of electronic equipment.

Another object of the present invention is to provide a kind of mobile terminal, this mobile terminal work time can not because battery charging and temperature is too high.

A kind of method for charging batteries, for charging to the battery of electronic equipment, comprises the following steps: the supply current that the feeder ear that (1) controls electronic equipment exports is the first preset value, (2) charging current of described battery is detected, size according to described charging current judges the operating state of the system of electronic equipment and the charged state of battery, and in described system during in running order or busy state, reduce described supply current size be in small-power charged state to make described battery or stop charging, keep described supply current to be the first preset value when described system is in holding state or little power consumption state, thus pass through dynamic conditioning charging current in a charging situation, reach the object reducing complete machine temperature rise, can not temperature be too high because battery charging when making system works.

Preferably, described step (2) is specially: the size detecting the charging current of battery, and regulate described supply current size to be less than the 3rd preset value to make described charging current when described charging current is less than the second preset value, step (1) is returned when described charging current is greater than the second preset value, described first preset value is greater than the second preset value, and described second preset value is greater than the 3rd preset value.The present invention judges described system in running order or busy state when charging current is less than the second preset value supply current is the first preset value, otherwise system is in holding state or little power consumption state, judge that when charging current is less than the 3rd preset value described battery is in small-power charged state or stops charged state, otherwise battery is in high-power charged state.Certainly, the present invention limits charging current and under system enters busy state, still limits charging current determined by the size of the second preset value under system enters operating state, and the first preset value, the second preset value and the 3rd preset value all can by technical staff according to need setting.

Particularly, described step (2) specifically comprises: whether the charging current that (21) detect battery is less than the second preset value, if then perform next step, then returns step (21) if not; (22) described supply current size is regulated to be less than the 3rd preset value to make described charging current; (23) detect described charging current and whether be less than the second preset value, if then return step (22), then return step (1) if not.More specifically, described step (22) is specially: detect described charging current and whether be less than the 3rd preset value, if then perform step (23), returns step (22) after then reducing described supply current size if not.Wherein, when reducing supply current size, each what reduce can be vertically a default fixed value, also can calculate an estimated value according to the size of charging current.

Particularly, described first preset value is 1 ampere, and described second preset value is less than or equal to 700 milliamperes and is more than or equal to 500 milliamperes, and the 3rd preset value is less than or equal to 300 milliamperes and is more than or equal to 50 milliamperes.

Preferably, the method detecting described charging current is: between the charging end and the feeder ear of electronic equipment of battery, serial connection detects resistance, by the size of charging current described in described detection resistance measurement.

Present invention also offers a kind of batter-charghing system, for charging to the battery of electronic equipment, comprising testing circuit, processing unit, charging control unit, described testing circuit detects the charging current of battery; Described processing unit judges the operating state of system and the charged state of battery of described electronic equipment according to described charging current, and generate when in running order or busy state and described battery are in high-power charged state in described system and fall stream signal, generate constant current signal when described system is in holding state or little power consumption state; Described charging control unit is that the supply current of the first preset value is with to the system of electronic equipment and powered battery for exporting size, and keep the first preset value according to the size that described constant current signal controls described supply current, described supply current size is reduced according to falling stream signal, thus pass through dynamic conditioning charging current in a charging situation, reach the object reducing complete machine temperature rise, can not temperature be too high because battery charging when making system works.Wherein, described processing unit is divided into according to the charged state of large young pathbreaker's battery of described charging current: stop charging (size of charging current slightly equals zero), high-power charged state and small-power charged state.

Preferably, described processing unit generates when described charging current is less than the second preset value and is greater than the 3rd preset value and falls stream signal, constant current signal is generated when described charging current is greater than the second preset value, described first preset value is greater than the second preset value, and described second preset value is greater than the 3rd preset value.Wherein, the present invention judges described system in running order or busy state when charging current is less than the second preset value supply current is the first preset value, otherwise system is in holding state or little power consumption state, judge that when charging current is less than the 3rd preset value described battery is in small-power charged state or stops charged state, otherwise battery is in high-power charged state.

Particularly, described first preset value is 1 ampere, and described second preset value is less than or equal to 700 milliamperes and is more than or equal to 500 milliamperes, and the 3rd preset value is less than or equal to 300 milliamperes and is more than or equal to 50 milliamperes.

Preferably, described detection electric current is the detection resistance be serially connected between the charging end of battery and the feeder ear of charging control unit.

Present invention also offers a kind of mobile terminal, this mobile terminal comprises above-mentioned batter-charghing system, makes described mobile terminal electronic equipment temperature can will be made too high because of battery charging when system works.

Accompanying drawing explanation

Fig. 1 is the flow chart to the method for battery charging in mobile terminal of the present invention.

Fig. 2 is the structured flowchart of batter-charghing system of the present invention.

Embodiment

By describing technology contents of the present invention, structural feature in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with execution mode.

The invention discloses a kind of method to battery charging in mobile terminal, the supply current that the feeder ear that the method charging initial condition controls electronic equipment exports is the first preset value, the operating state of system and the charged state of battery is judged by the size of the charging current detecting battery in real time, and keep described supply current to be the first preset value when the system of electronic equipment is in holding state, regulate described supply current size be in small-power charged state to make described battery or stop charging during in running order or busy state in system, thus make electronic equipment when system works can not because battery charging and temperature is too high.

With reference to figure 1, in the present invention, in described mobile terminal, the method 100 of battery charging is comprised the following steps: the size of the supply current I1 that the feeder ear that (11) control electronic equipment exports is 1A, (12) judge whether the charging current I2 of battery is less than 700mA, and judge that when described charging current I2 is less than 700mA the system of mobile terminal is in busy state and performs step (13); (13) judge whether described charging current I2 is less than 300mA, if then perform step (15), then perform step (14) if not; (14) reduce the size of described supply current I1 and return step (13), concrete grammar once can reduce a fixed value, also can reduce an estimated value according to the size of charging current, be less than 200mA to make charging current I2; (15) judge whether described charging current I2 is more than or equal to 700mA, and then system is still in busy state if not, now return step (13), if then System recover holding state or little power consumption state, now return step (11).In this embodiment, charging current I2 is equaled 700mA and be judged as little power consumption state, charging current I2 can certainly be equaled 700mA and be judged as busy state, specifically can be set by technical staff.Same, charging current I2 is equaled 300mA and is judged as high-power charged state by the present embodiment, charging current I2 can certainly be equaled 300mA and be judged as small-power charged state, specifically can be set by technical staff.

Wherein, 1A is the first default preset value, and 700mA is the second default preset value, and 300mA is the 3rd default preset value, and the first preset value, the second preset value and the 3rd preset value are not limited in 1A, 700mA and 300mA, concrete numerical value can be arranged according to actual needs by technical staff.Preferably, described second preset value can be less than or equal to 700 milliamperes and the interval being more than or equal to 500 milliamperes is selected, and the 3rd preset value can be selected being less than or equal to 300 milliamperes of intervals being more than or equal to 50 milliamperes.

With reference to figure 2, the invention also discloses a kind of mobile terminal, this mobile terminal has batter-charghing system 200, and described batter-charghing system 200 comprises testing circuit 23, processing unit 22, charging control unit 21, and described testing circuit 23 detects the charging current I2 size of battery 32; Described processing unit 22 judges described charging current I2 size, generates and falls stream signal, generate constant current signal when described charging current I2 is more than or equal to the second preset value when described charging current I2 is less than the second preset value and is greater than the 3rd preset value; Described charging control unit 21 is for exporting supply current I1 to power to the system 31 of electronic equipment and battery 32, and keep the first preset value according to the size that described constant current signal controls described supply current I1, reduce described supply current I1 size according to falling stream signal.Wherein, described first preset value is 1 ampere, and described second preset value is less than or equal to 700 milliamperes and is more than or equal to 500 milliamperes, and the 3rd preset value is less than or equal to 300 milliamperes and is more than or equal to 50 milliamperes.

Preferably, described detection electric current I 1 is for being serially connected in the detection resistance between the charging end of battery 32 and the feeder ear of charging control unit 21.

With reference to figure 2, specifically describe the operation principle of described batter-charghing system 200: after powering to the charging end of mobile terminal, described charging control unit 21 exports the supply current I1 that size is 1A, described testing circuit 23 detects the charging current I2 size of battery 32, when system 31 is in holding state, described charging current I2 slightly equals supply current I1, therefore described charging current I2 must be greater than the second preset value, now processing unit 22 output constant current signal, described charging control unit 21 controls described supply current I1=1A, and namely supply current I1 remains on 1A; When system 31 is in running order, because system 31 power consumption generally can more than 300mA, judge whether described charging current I2 is less than 700mA, if then decision-making system is in running order, now described processing unit exports and falls stream signal, described charging control unit 21 falls the size that stream signal reduces supply current I1, until charging current I2 is less than or equal to 300mA according to described.

To sum up, because supply current I1 equals the charging current I2 of battery 32 and power consumption electric current I 3 sum of system, when supply current I1 is constant, size by detecting charging current I2 judges whether the power consumption electric current I 3 of system exceedes limit value, the whether in running order or busy state with decision-making system, therefore the present invention reduces charging current I2 by reducing supply current I1 when or busy state in running order in system, until battery 32 is in small-power charged state or stops charging, make mobile terminal can when system works can not because battery charging and temperature is too high.

Above disclosedly be only the preferred embodiments of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the present patent application the scope of the claims is done, still belong to the scope that the present invention is contained.

Claims (10)

1. a method for charging batteries, for charging to the battery of electronic equipment, is characterized in that, comprise the following steps:
(1) supply current that the feeder ear controlling electronic equipment exports is the first preset value;
(2) size of the charging current of described battery is detected, size according to described charging current judges the operating state of the system of electronic equipment and the charged state of battery, and in described system during in running order or busy state, reduce described supply current size and be in small-power charged state to make described battery, keep when described system is in holding state or little power consumption state described supply current to be the first preset value;
Wherein, in described system during in running order or busy state, reduce described supply current size to comprise with the step making described battery and be in small-power charged state: regulate described supply current size to be less than the 3rd preset value to make described charging current when described charging current is less than the second preset value, described first preset value is greater than the second preset value, and described second preset value is greater than the 3rd preset value.
2. method for charging batteries as claimed in claim 1, it is characterized in that: described step (2) is specially: the size detecting the charging current of battery, and regulate described supply current size to be less than the 3rd preset value to make described charging current when described charging current is less than the second preset value, step (1) is returned when described charging current is greater than the second preset value, described first preset value is greater than the second preset value, and described second preset value is greater than the 3rd preset value.
3. method for charging batteries as claimed in claim 2, it is characterized in that, described step (2) specifically comprises: whether the charging current that (21) detect battery is less than the second preset value, if then perform next step, then returns step (21) if not; (22) reduce described supply current size and be less than the 3rd preset value to make described charging current; (23) detect described charging current and whether be less than the second preset value, if then return step (22), then return step (1) if not.
4. method for charging batteries as claimed in claim 2, it is characterized in that, described first preset value is 1 ampere, and described second preset value is less than or equal to 700 milliamperes and is more than or equal to 500 milliamperes, and the 3rd preset value is less than or equal to 300 milliamperes and is more than or equal to 50 milliamperes.
5. method for charging batteries as claimed in claim 1, it is characterized in that, the method detecting described charging current is: between the charging end and the feeder ear of electronic equipment of battery, serial connection detects resistance, by the size of charging current described in described detection resistance measurement.
6. a batter-charghing system, for charging to the battery of electronic equipment, is characterized in that, comprise:
Testing circuit, detects the charging current of battery;
Processing unit, the operating state of the system of described electronic equipment and the charged state of battery is judged according to described charging current, and generate when in running order or busy state and described battery are in high-power charged state in described system and fall stream signal, generate constant current signal when described system is in holding state or little power consumption state;
Charging control unit, be that the supply current of the first preset value is with to the system of electronic equipment and powered battery for exporting size, and keep the first preset value according to the size that described constant current signal controls described supply current, reduce described supply current size according to falling stream signal;
Wherein, described processing unit generates when described charging current is less than the second preset value and is greater than the 3rd preset value and falls stream signal, and described first preset value is greater than the second preset value, and described second preset value is greater than the 3rd preset value.
7. batter-charghing system as claimed in claim 6, it is characterized in that, described processing unit generates constant current signal when described charging current is greater than the second preset value.
8. batter-charghing system as claimed in claim 7, it is characterized in that, described first preset value is 1 ampere, and described second preset value is less than or equal to 700 milliamperes and is more than or equal to 500 milliamperes, and the 3rd preset value is less than or equal to 300 milliamperes and is more than or equal to 50 milliamperes.
9. batter-charghing system as claimed in claim 6, it is characterized in that, described testing circuit comprises the detection resistance be serially connected between the charging end of battery and the feeder ear of charging control unit.
10. a mobile terminal, is characterized in that: comprise the batter-charghing system according to any one of claim 6-9.
CN201310134793.1A 2013-04-17 2013-04-17 Method for charging batteries, batter-charghing system and mobile terminal CN103219769B (en)

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CN103972967A (en) * 2014-05-23 2014-08-06 深圳市中兴移动通信有限公司 Method for controlling charging according to application scenes
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CN106571650A (en) * 2015-10-12 2017-04-19 小米科技有限责任公司 Charging warning method and device of mobile terminal, and mobile terminal
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CN105896645B (en) * 2016-03-23 2019-01-25 Oppo广东移动通信有限公司 The charge function detection method of mobile terminal, apparatus and system
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18

Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd.

Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18

Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd.