CN103219769A - Battery charging method, battery charging system and mobile terminal - Google Patents
Battery charging method, battery charging system and mobile terminal Download PDFInfo
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Abstract
The invention discloses a battery charging method which is used for charging a battery of an electronic device. The battery charging method includes the following steps of controlling a power supply current output by a power supply end of the electronic device to be a first preset value in an original state, detecting a charging current of the battery, judging a system operation state of the electronic device and a charging state of the battery according to the charging current size, reducing the power supply current magnitude so that the battery is in a small power charging state or stops charging when the system is in a working state or a busy state, keeping the power supply current as the first preset value when the system is in a stand-by state or a small power consumption state, thereby achieving an aim of reducing temperature rise of a whole machine by dynamically adjusting the charging current under the charging state so that the temperature of the system can not be too high even though the battery is charged when the system works. The invention further discloses the corresponding battery charging system and a mobile terminal with the battery charging system.
Description
Technical field
The present invention relates to electronic applications, relate in particular 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, the high-pixel camera head, have in addition go back configuring external ISP picture processing chip with the lifting effect of taking pictures.The support HD video is play.Mobile phone games function meanwhile is from strength to strength also, also can play on a lot of present mobile phones of recreation that can only play on computers in the past.All these all can increase the power consumption of mobile phone greatly, i.e. power consumption stream is very big, and the thing followed is exactly the raising of mobile phone temperature rise.Especially present smart mobile phone more and more develops toward frivolous direction, makes the mobile phone heat-dissipating space further be compressed, and causes the thermal design of mobile phone to face very big difficulty, also is current awfully hot research topic.
After deliberation, play HD video, the shooting of high definition pattern, playing games and charging is four big principal elements of mobile phone temperature rise.If charging+high definition shooting simultaneously or charging+HD video are play or charging+recreation, mobile phone temperature rise meeting further raises, and can reach degree even higher more than 60.And for smart mobile phone, play games while charging, playing HD video (seeing a film etc. such as online) while charging is the scene that often runs into, this moment, too high body temperature not only can influence the mobile phone life-span, and will inevitably give very bad impression and the experience of user, even can allow user's citing security concerns.
Therefore be badly in need of a kind of New-type charge method that addresses the above problem.
Summary of the invention
The purpose of this invention is to provide a kind of method for charging batteries, this method for charging batteries detects with dynamic adjustment charging current by the charging current of mobile phone convection current under charge condition to battery, thereby reach the purpose that reduces the complete machine temperature rise, can be not too high when making system works because of the battery charge temperature.
Another object of the present invention provides a kind of batter-charghing system, can be not too high because of the battery charge temperature when this batter-charghing system makes the system works of electronic equipment.
Another purpose of the present invention provides a kind of portable terminal, can be not too high because of the battery charge temperature during this portable terminal work.
A kind of method for charging batteries is used for the battery charge to electronic equipment, may further comprise the steps: the supply current of the feeder ear output of (1) control electronic equipment is first preset value; (2) charging current of the described battery of detection, the operating state of the system of the size judgement electronic equipment of the described charging current of foundation and the charged state of battery, and in described system during in running order or busy state, reduce described supply current size so that described battery is in the small-power charged state or stops charging, keeping described supply current when described system is in holding state or little power consumption state is first preset value, thereby by under charge condition, dynamically adjusting charging current, reach the purpose that reduces the complete machine temperature rise, can be not too high when making system works because of the battery charge temperature.
Preferably, described step (2) is specially: the size that detects the charging current of battery, and described charging current regulate described supply current size during less than second preset value so that described charging current less than the 3rd preset value, return step (1) during greater than second preset value in described charging current, described first preset value is greater than second preset value, and described second preset value is greater than the 3rd preset value.The present invention is that first preset value and charging current are judged the in running order or busy state of described system during less than second preset value at supply current, otherwise system is in holding state or little power consumption state, judge that described battery is in the small-power charged state or stops charged state in charging current during less than the 3rd preset value, otherwise battery is in high-power charged state.Certainly, the present invention enters under the operating state restriction charging current in system and still enters under the busy state restriction charging current by the size decision of second preset value in system, and first preset value, second preset value and the 3rd preset value all can be set according to needing by the technical staff.
Particularly, described step (2) specifically comprises: whether (21) detect the charging current of battery less than second preset value, if then carry out next step, then return step (21) if not; (22) regulate described supply current size so that described charging current less than the 3rd preset value; (23) whether detect described charging current less than second preset value,, then return step (1) if not if then return step (22).More specifically, described step (22) is specially: whether detect described charging current less than the 3rd preset value, if execution in step (23) is then returned step (22) after then reducing described supply current size if not.Wherein, when reducing the supply current size, what reduce vertically can be a default fixed value at every turn, 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 smaller or equal to 700 milliamperes and more than or equal to 500 milliamperes, the 3rd preset value smaller or equal to 300 milliamperes more than or equal to 50 milliamperes.
Preferably, the method that detects described charging current is: serial connection detects resistance between the feeder ear of the charging end of battery and electronic equipment, by the size of the described charging current of described detection resistance measurement.
The present invention also provides a kind of batter-charghing system, is used for the battery charge to electronic equipment, comprises testing circuit, processing unit, charging control unit, and described testing circuit detects the charging current size of battery; Described processing unit is according to the operating state of the system of the described electronic equipment of described charging current size judgement and the charged state of battery, and generate when in running order or busy state and described battery are in high-power charged state in described system and to fall the stream signal, generate constant current signal when being in holding state or little power consumption state in described system; It is that the supply current of first preset value is with system and powered battery to electronic equipment that described charging control unit is used to export size, and keep first preset value according to the size that described constant current signal is controlled described supply current, reduce described supply current size according to falling the stream signal, thereby by under charge condition, dynamically adjusting charging current, reach the purpose that reduces the complete machine temperature rise, can be not too high when making system works because of the battery charge temperature.Wherein, described processing unit is divided into according to the charged state of big 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 during less than second preset value and greater than the 3rd preset value in described charging current and falls the stream signal, generate constant current signal during greater than second preset value in described charging current, described first preset value is greater than second preset value, and described second preset value is greater than the 3rd preset value.Wherein, the present invention is that first preset value and charging current are judged the in running order or busy state of described system during less than second preset value at supply current, otherwise system is in holding state or little power consumption state, judge that described battery is in the small-power charged state or stops charged state in charging current during less than the 3rd preset value, otherwise battery is in high-power charged state.
Particularly, described first preset value is 1 ampere, and described second preset value is smaller or equal to 700 milliamperes and more than or equal to 500 milliamperes, the 3rd preset value smaller or equal to 300 milliamperes more than or equal to 50 milliamperes.
Preferably, described detection electric current is the detection resistance that is serially connected between the feeder ear of the charging end of battery and charging control unit.
The present invention also provides a kind of portable terminal, and this portable terminal comprises above-mentioned batter-charghing system, makes described portable terminal can not make that the electronic equipment temperature is too high because of battery charge when system works.
Description of drawings
Fig. 1 is to the flow chart of the method for battery charge in the portable 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 purpose and effect, give explanation below in conjunction with execution mode and conjunction with figs. are detailed.
The invention discloses in a kind of portable terminal method to battery charge, the supply current of the feeder ear output of this method charging initial condition control electronic equipment is first preset value, the size of the charging current by real-time detection battery is judged the operating state of system and the charged state of battery, and to keep described supply current when being in holding state in the system of electronic equipment be first preset value, regulate described supply current size so that described battery is in the small-power charged state or stops charging in system during in running order or busy state, thereby make that electronic equipment can be not too high because of the battery charge temperature when system works.
With reference to figure 1, in the present invention, method 100 to battery charge in the described portable terminal may further comprise the steps: the size of the supply current I1 of the feeder ear output of (11) control electronic equipment is 1A, (12) whether the charging current I2 that judges battery less than 700mA, and judges that the system of portable terminal is in busy state and execution in step (13) at described charging current I2 during less than 700mA; (13) whether judge described charging current I2 less than 300mA, if execution in step (15) then, execution in step (14) then if not; (14) reduce the size of described supply current I1 and return step (13), concrete grammar can once reduce a fixed value, also can reduce an estimated value according to the size of charging current, so that charging current I2 is less than 200mA; (15) whether judge described charging current I2 more than or equal to 700mA, then system still is in busy state if not, and return step (13) this moment, if then system restoration holding state or little power consumption state return step (11) this moment.In this embodiment, charging current I2 is equaled 700mA be judged as little power consumption state, charging current I2 can certainly be equaled 700mA and be judged as busy state, specifically can set by the technical staff.Same, present embodiment equals charging current I2 to 300mA and is judged as high-power charged state, charging current I2 can certainly be equaled 300mA and be judged as the small-power charged state, specifically can be set by the technical staff.
Wherein, 1A is the first default preset value, and 700mA is the second default preset value, and 300mA is the 3rd preset value of presetting, and first preset value, second preset value and the 3rd preset value are not limited in 1A, 700mA and 300mA, and concrete numerical value can be by the technical staff according to the actual needs setting.The preferably, described second preset value can be smaller or equal to 700 milliamperes and selected more than or equal to 500 milliamperes interval, and the 3rd preset value can be selected smaller or equal to 300 milliamperes of intervals more than or equal to 50 milliamperes.
With reference to figure 2, the invention also discloses a kind of portable terminal, this portable 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 is judged described charging current I2 size, generates during less than second preset value and greater than the 3rd preset value at described charging current I2 and falls the stream signal, generates constant current signal during more than or equal to second preset value at described charging current I2; Described charging control unit 21 is used to export supply current I1 with system 31 and battery 32 power supplies to electronic equipment, and keep first preset value according to the size that described constant current signal is controlled described supply current I1, reduce described supply current I1 size according to falling the stream signal.Wherein, described first preset value is 1 ampere, and described second preset value is smaller or equal to 700 milliamperes and more than or equal to 500 milliamperes, the 3rd preset value smaller or equal to 300 milliamperes more than or equal to 50 milliamperes.
The preferably, described detection electric current I 1 is the detection resistance between the feeder ear of the charging end that is serially connected in battery 32 and charging control unit 21.
With reference to figure 2, specifically describe the operation principle of described batter-charghing system 200: after giving the charging end power supply of portable terminal, described charging control unit 21 output sizes are the supply current I1 of 1A, described testing circuit 23 detects the charging current I2 size of battery 32, described charging current I2 slightly equals supply current I1 when system 31 is in holding state, therefore described charging current I2 is inevitable greater than second preset value, processing unit 22 is exported constant current signals at this moment, the described supply current I1=1A of described charging control unit 21 controls, promptly supply current I1 remains on 1A; When system 31 is in running order, because system's 31 power consumptions generally can surpass 300mA, judge that whether described charging current I2 is less than 700mA, if then decision-making system is in running order, this moment, the stream signal fell in described processing unit output, described charging control unit 21 is fallen the size that the stream signal reduces supply current I1 according to described, until charging current I2 smaller or equal to 300mA.
To sum up, because supply current I1 equals the charging current I2 of battery 32 and power consumption electric current I 3 sums of system, when supply current I1 is constant, can judge whether the power consumption electric current I 3 of system surpasses limit value by the size that detects charging current I2, with decision-making system in running order or busy state whether, reduce supply current I1 when therefore the present invention is by or busy state in running order in system and reduce charging current I2, be in the small-power charged state or stop charging until battery 32, make that portable terminal can be not too high because of the battery charge temperature when system works.
Above disclosed only is the preferred embodiments of the present invention, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of being done according to the present patent application claim still belongs to the scope that the present invention is contained.
Claims (10)
1. a method for charging batteries is used for the battery charge to electronic equipment, it is characterized in that, may further comprise the steps:
(1) supply current of the feeder ear output of control electronic equipment is first preset value;
(2) charging current of the described battery of detection, the operating state of the system of the size judgement electronic equipment of the described charging current of foundation and the charged state of battery, and in described system during in running order or busy state, reduce described supply current size so that described battery is in the small-power charged state or stops charging, keeping described supply current when being in holding state or little power consumption state in described system is first preset value.
2. method for charging batteries as claimed in claim 1, it is characterized in that: described step (2) is specially: the size that detects the charging current of battery, and described charging current regulate described supply current size during less than second preset value so that described charging current less than the 3rd preset value, return step (1) during greater than second preset value in described charging current, described first preset value is greater than 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 is characterized in that, described step (2) specifically comprises: whether (21) detect the charging current of battery less than second preset value, if then carry out next step, then return step (21) if not; (22) reduce described supply current size so that described charging current less than the 3rd preset value; (23) whether detect described charging current less than second preset value,, then return step (1) if not if then return step (22).
4. method for charging batteries as claimed in claim 2 is characterized in that, described first preset value is 1 ampere, and described second preset value is smaller or equal to 700 milliamperes and more than or equal to 500 milliamperes, the 3rd preset value smaller or equal to 300 milliamperes more than or equal to 50 milliamperes.
5. method for charging batteries as claimed in claim 1 is characterized in that, the method that detects described charging current is: serial connection detects resistance between the feeder ear of the charging end of battery and electronic equipment, by the size of the described charging current of described detection resistance measurement.
6. a batter-charghing system is used for the battery charge to electronic equipment, it is characterized in that, comprising:
Testing circuit, the charging current size of detection battery;
Processing unit, the operating state of the system of the described electronic equipment of foundation described charging current size judgement and the charged state of battery, and generate when in running order or busy state and described battery are in high-power charged state in described system and to fall the stream signal, generate constant current signal when being in holding state or little power consumption state in described system;
Charging control unit, the supply current that is used to export size and is first preset value is with system and powered battery to electronic equipment, and keep first preset value according to the size that described constant current signal is controlled described supply current, reduce described supply current size according to falling the stream signal.
7. batter-charghing system as claimed in claim 6, it is characterized in that, described processing unit generates during less than second preset value and greater than the 3rd preset value in described charging current and falls the stream signal, generate constant current signal during greater than second preset value in described charging current, described first preset value is greater than second preset value, and described second preset value is greater than the 3rd preset value.
8. batter-charghing system as claimed in claim 7 is characterized in that, described first preset value is 1 ampere, and described second preset value is smaller or equal to 700 milliamperes and more than or equal to 500 milliamperes, the 3rd preset value smaller or equal to 300 milliamperes more than or equal to 50 milliamperes.
9. batter-charghing system as claimed in claim 6 is characterized in that, described testing circuit comprises the detection resistance between the feeder ear of the charging end that is serially connected in battery and charging control unit.
10. a portable terminal is characterized in that: comprise as each described batter-charghing system among the claim 6-9.
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| CN201310134793.1A CN103219769B (en) | 2013-04-17 | 2013-04-17 | Method for charging batteries, batter-charghing system and mobile terminal |
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| CN201310134793.1A CN103219769B (en) | 2013-04-17 | 2013-04-17 | Method for charging batteries, batter-charghing system and mobile terminal |
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| CN107508350A (en) * | 2017-08-31 | 2017-12-22 | 广东欧珀移动通信有限公司 | Electronic equipment and its charging method, storage medium |
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| CN108199446A (en) * | 2018-02-07 | 2018-06-22 | 湖南科技大学 | Circuit and soft start equipment are protected in lithium battery trickle charge |
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| CN109256835B (en) * | 2018-10-16 | 2022-03-18 | 深圳壹账通智能科技有限公司 | Charging control method of mobile terminal, storage medium and mobile terminal |
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| CN110556897B (en) * | 2019-09-29 | 2023-07-28 | 密码精灵有限公司 | Charging control method and device for intelligent door lock and intelligent door lock |
| CN111009943A (en) * | 2019-12-10 | 2020-04-14 | 惠州Tcl移动通信有限公司 | Battery charging method and device, storage medium and terminal |
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