CN103001267A - Charge control method, charge control circuit and terminal with screen - Google Patents
Charge control method, charge control circuit and terminal with screen Download PDFInfo
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- CN103001267A CN103001267A CN2011102696767A CN201110269676A CN103001267A CN 103001267 A CN103001267 A CN 103001267A CN 2011102696767 A CN2011102696767 A CN 2011102696767A CN 201110269676 A CN201110269676 A CN 201110269676A CN 103001267 A CN103001267 A CN 103001267A
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Abstract
The invention provides a charge control method. The charge control method includes the steps of 102, detecting status of a screen and transmitting a status signal to a control circuit according to the status; 104, allowing the control circuit to generate a current control signal according to the status signal; and 106, allowing the control circuit to control magnitude of charge current by the current control signal. Correspondingly, the invention further provides the charge control circuit, a control device and a terminal with a screen. When a device is charged, the magnitude of the charge current can be controlled according to on and off of the screen by the charge control method and the charge control circuit, so that normal operation and charging process of the device are guaranteed and the requirements for charging adapters are lowered.
Description
Technical field
The present invention relates to the charging technique field, in particular to a kind of charge control method, a kind of charging control circuit and a kind of terminal with screen.
Background technology
When the screen of equipment was opened, the power consumption of complete machine was just larger, and the electric current that needs during complete machine work is also larger, will cause the requirement of charging adapter highlyer if at this moment carry out very large current charges again, and cost increases.Simultaneously, if electric current is respectively applied to charge and the operation of equipment, then inappropriate method of salary distribution may cause the fluctuation of service of equipment, shortens the useful life of equipment, causes the user to lose.
Therefore, need a kind of new charging technique, can make equipment in charging process, the size according to the open and close control charging current of screen has guaranteed the normal operation of equipment and the carrying out of charging process, has reduced the requirement to charging adapter.
Summary of the invention
In order one of to solve the problems of the technologies described above at least, relatively correct mode should for: when screen is bright, charging current is reduced the very little low current charge of keeping, at Guan Pingshi, large current charge is kept in the charging current raising, guaranteed so the short requirement that has reduced again charging adapter of charging interval, therefore the invention provides a kind of charging control technology, be implemented in the charging process of equipment, control the size of charging current according to the open and close of screen, guarantee the normal operation of equipment and the carrying out of charging process, reduced the requirement to charging adapter.
In view of this, the present invention proposes a kind of charge control method, comprising: step 102, detect the state of screen, and send status signal according to described state to control circuit; Step 104, described control circuit generates current controling signal according to described status signal; Step 106, described control circuit utilize described current controling signal to control the size of charging current.In this technical scheme, the state of screen can be divided into opens or closes, during screen opening, screen need to consume more electric weight on the one hand, on the other hand during screen opening, mean that the user may be to operate, therefore, this moment, equipment need to consume more electric weight, if these electric weight are all taken from charging adapter, then charging adapter need to improve original charging current, this can improve the requirement to charging adapter, increase the production cost of charging adapter, also can reduce the fail safe of charging adapter, even reduce the life-span of charging adapter.And if charging adapter is not distributed to electric weight equipment, then the operation of equipment may be affected, and causes unstablely maybe can't move, and makes the user experience reduction, even reduces fail safe and the useful life of equipment.And by when screen opening, the electric weight that originally was used for charging is distributed to equipment, reduce charging current, then can guarantee the normal operation of equipment, and when screen is closed, increase charging current, then can when guaranteeing that the user experiences, guarantee as much as possible to shorten the charging interval.
According to a further aspect in the invention, also proposed a kind of charging control circuit, having comprised: the screen state testing circuit, send status signal according to the state of screen to described control circuit; Described control circuit is connected to described screen state testing circuit, according to the described status signal from described screen state testing circuit that receives, and the size of control charging current.In this technical scheme, unlatching or the closed condition of screen state testing circuit perception screen, and when state changes, send signal to control circuit, control circuit can be adjusted the size of charging current by this signal.Control circuit can guarantee the normal operation of equipment, and put before this modulation of the size of charging current, shorten the charging interval as much as possible, thereby it is unaffected to guarantee that the user experiences, and need not to promote the requirement of charging adapter, saves production cost.
According to a further aspect in the invention, also proposed a kind of terminal with screen, comprised such as the described charging control circuit of above-mentioned technical scheme.In this technical scheme, this terminal can be under screen opening or the different conditions of closing, realization is to the control of charging current, can guarantee the normal operation of equipment, and putting before this, shorten the charging interval as much as possible, thereby it is unaffected to guarantee that the user experiences, and need not to promote the requirement of charging adapter, save production cost.
Description of drawings
Fig. 1 shows the according to an embodiment of the invention flow chart of charge control method;
Fig. 2 shows the according to an embodiment of the invention block diagram of charging control circuit;
Fig. 3 shows the according to an embodiment of the invention block diagram of control circuit;
Fig. 4 shows the according to an embodiment of the invention circuit diagram of charging control circuit; And
Fig. 5 shows the block diagram of the terminal that has according to an embodiment of the invention screen.
Embodiment
In order more clearly to understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments the present invention is further described in detail.
Set forth in the following description a lot of details so that fully understand the present invention, still, the present invention can also adopt other to be different from other modes described here and implement, and therefore, the present invention is not limited to the restriction of following public specific embodiment.
Fig. 1 shows the according to an embodiment of the invention flow chart of charge control method.
As shown in Figure 1, charge control method comprises according to an embodiment of the invention: step 102, detect the state of screen, and send status signal according to state to control circuit; Step 104, control circuit generates current controling signal according to status signal; Step 106, control circuit utilize current controling signal to control the size of charging current.In this technical scheme, the state of screen can be divided into opens or closes, during screen opening, screen need to consume more electric weight on the one hand, on the other hand during screen opening, mean that the user may be to operate, therefore, this moment, equipment need to consume more electric weight, if these electric weight are all taken from charging adapter, then charging adapter need to improve original charging current, this can improve the requirement to charging adapter, increase the production cost of charging adapter, also can reduce the fail safe of charging adapter, even reduce the life-span of charging adapter.And if charging adapter is not distributed to electric weight equipment, then the operation of equipment may be affected, and causes unstablely maybe can't move, and makes the user experience reduction, even reduces fail safe and the useful life of equipment.And by when screen opening, the electric weight that originally was used for charging is distributed to equipment, reduce charging current, then can guarantee the normal operation of equipment, and when screen is closed, increase charging current, then can when guaranteeing that the user experiences, guarantee as much as possible to shorten the charging interval.
In technique scheme, comprising: when screen was opening, control circuit control reduced charging current; And when screen is closed condition, control circuit control rising charging current.In this technical scheme, by the open and close of screen the size of charging current to be controlled, thereby can be controlled total electric current of power supply adaptor output, reduction equipment reduces production costs for the requirement of power supply adaptor.
Fig. 2 shows the according to an embodiment of the invention block diagram of charging control circuit.
As shown in Figure 2, charging control circuit 200 comprises according to an embodiment of the invention: screen state testing circuit 202, send status signal according to the state of screen to control circuit 204; Control circuit 204 is connected to screen state testing circuit 202, according to the status signal from screen state testing circuit 202 that receives, and the size of control charging current; Dividing potential drop current-limiting circuit 206 comprises the 3rd resistance and the 4th resistance, wherein, the first pin of the 3rd resistance is connected to screen state testing circuit 202, accepting state signal, and the second pin of the 3rd resistance is connected to first node is sent to switching circuit in the control circuit 204 with status signal; The first pin of the 4th resistance is connected to first node, and the second pin ground connection of the 4th resistance; The first filter circuit 208 comprises the first electric capacity and the second electric capacity, and the first pin of the first electric capacity is connected to the second pin of the second resistance, and the second pin ground connection of the first electric capacity; The first pin of the second electric capacity is connected to the second pin of the second resistance, and the second pin ground connection of the second electric capacity; The second filter circuit 210 comprises the 3rd electric capacity, and the first pin of the 3rd electric capacity is connected to Section Point, and the second pin ground connection of the 3rd electric capacity.
In this technical scheme, screen state control circuit 202 sends status signal to control circuit 204 according to the residing state of screen, the screen state control circuit 202 here can be considered as the screen state signal source, when unlatching or closed condition variation occur screen, send corresponding signal to next stage.Control circuit 204 is controlled the charging current of charging control circuit 200 under the effect of status signal, guarantees power supply adaptor under the previous level do not need the to upgrade normal operation that can guarantee equipment and the carrying out of charging process.Dividing potential drop current-limiting circuit 206 is when preventing that screen state control circuit 202 from sending status signals to control circuit 204, and excessive electric current causes damage to the components and parts in the control circuit 204, thereby carries out the function of dividing potential drop current limliting.The first filter circuit 208 and the second filter circuit 210 can be to control circuits 204 during to charging circuit such as battery output current, and filtering noise guarantees that charging process carries out safely and effectively, has also guaranteed the useful life of equipment.
Below in conjunction with Fig. 3, be further analyzed for the control circuit 204 among the upper figure.
As shown in Figure 3, control circuit 204 comprises switching circuit 302 and shunt circuit 304, wherein, switching circuit 302 is arranged on the branch road of shunt circuit 304, shunt circuit 304 is connected in the resistance between power supply and the charging circuit in parallel when being included in switching circuit 302 conducting, this resistance comprises the first resistance and the second resistance, wherein, the first pin of the first resistance is connected to power supply, and the second pin of the first resistance is connected to switching circuit 302, and the first pin of the second resistance is connected to power supply, and the second pin of the second resistance is connected to charging circuit.In this technical scheme, switching circuit 302 is behind the status signal that receives from the screen state testing circuit, correspondingly conducting or cut-off of meeting, when switching circuit 302 cut-off, the first resistance place path cut-off, then this moment, shunt circuit 304 only comprised the second electronics, and supply voltage is converted to charging current and inputs charging circuit through the second resistance; And when switching circuit 302 conducting, the first resistance place path conducting, then this moment, shunt circuit 304 was made of the first resistance and the second resistance parallel connection, supply voltage is converted to charging current and inputs charging circuit through this parallel resistance, in above-mentioned two situations, because the resistance of the second resistance is greater than the resistance of the first resistance and the second resistance parallel connection, therefore, in the time of can working as screen opening, make the switching circuit cut-off, reduce charging current, when screen is closed, make the switching circuit conducting, the rising charging current, thus so that circuit can or not closed the requirement that promotes for charging adapter owing to the unlatching of screen.
In technique scheme, switching circuit 302 comprises: CMOS pipe, JFET pipe and/or transistor.In this technical scheme, be construed as, every can playing under status signal, equipment, circuit, components and parts that makes the on-off action of the first resistance place path conducting or cut-off etc. all is applicable to herein.
In technique scheme, switching circuit 302 comprises: the PMOS pipe, the grid pin of this PMOS pipe is connected to first node, first node is connected to screen state testing circuit and ground, the drain pin of PMOS pipe is connected to Section Point, Section Point is connected to charging circuit and ground, the source electrode pin of PMOS pipe is connected to the second pin of the first resistance, the PMOS pipe is by the status signal of grid pin reception from the screen state testing circuit, and when status signal was high level, PMOS managed cut-off, the branch road at the first resistance place is disconnected, when status signal was low level, PMOS managed conducting, made the branch road conducting at the first resistance place.In this technical scheme, when screen opening, status signal is high level, and the PMOS pipe ends under this signal function, so that the first resistance place path cut-off, supply voltage is only by the second resistance input charging circuit; When screen was closed, status signal was low level, the conducting under this signal function of PMOS pipe, so that the path conducting at the first resistance place, supply voltage is inputted charging circuit after by the shunt circuit that is made of the first resistance and the second resistance parallel connection.Because the resistance after the first resistance and the second resistance parallel connection is less than the resistance of the second resistance, so that during screen opening, the charging current of input charging circuit reduces, and with the consumption of more electric current for screen and whole equipment, and when screen is closed, the charging current of input charging circuit raises, and shortens the charging interval.
Fig. 4 shows the according to an embodiment of the invention circuit diagram of charging control circuit.
As shown in Figure 4, in charging control circuit according to an embodiment of the invention, comprising: screen state testing circuit 402, send status signal according to the state of screen to control circuit 404; Control circuit 404 is connected to screen state testing circuit 402, according to the status signal from screen state testing circuit 402 that receives, and the size of control charging current; Control circuit 404 comprises switching circuit 412 and shunt circuit 414, wherein, switching circuit 412 is arranged on the branch road of shunt circuit 414, shunt circuit 414 is connected in the resistance between supply voltage 416 and the battery 418 in parallel when being included in switching circuit 402 conducting, this resistance comprises the first resistance and the second resistance, wherein, the first pin of the first resistance is connected to supply voltage 416, and the second pin of the first resistance is connected to switching circuit 412, and the first pin of the second resistance is connected to supply voltage 416, and the second pin of the second resistance is connected to battery 418.Dividing potential drop current-limiting circuit 406 comprises the 3rd resistance and the 4th resistance, wherein, the first pin of the 3rd resistance is connected to screen state testing circuit 402, the accepting state signal, and the second pin of the 3rd resistance is connected to first node, and status signal is sent to switching circuit 412; The first pin of the 4th resistance is connected to first node, and the second pin ground connection of the 4th resistance; The first filter circuit 408 comprises the first electric capacity and the second electric capacity, and the first pin of the first electric capacity is connected to the second pin of the second resistance, and the second pin ground connection of the first electric capacity; The first pin of the second electric capacity is connected to the second pin of the second electronics, and the second pin ground connection of the second electric capacity; The second filter circuit 410 comprises the 3rd electric capacity, and the first pin of the 3rd electric capacity is connected to Section Point, and the second pin ground connection of the 3rd electric capacity.
When the screen opening of equipment, send the high level state signal to switching circuit 412 by screen state testing circuit 402, make switching circuit 412 cut-offs, cause the branch road cut-off at the first resistance place in the shunt circuit 414, after this moment, supply voltage 416 only obtained charging current by the second resistance in the shunt circuit 414, export battery 418 to;
When the screen of equipment is closed, send the low level state signal to switching circuit 412 by screen state testing circuit 402, make switching circuit 412 conductings, cause the branch road cut-off at the first resistance place in the shunt circuit 414, this moment, supply voltage 416 obtained charging current by the first resistance in the shunt circuit 414 and the reprocessing in parallel of the second resistance, and exported battery 418 to.
In above-mentioned two situations, because the resistance after the first resistance and the second resistance parallel connection is less than the resistance of the second resistance, so that during screen opening, the charging current of input battery 418 reduces, and with the consumption of more electric current for screen and whole equipment, and when screen was closed, the charging current of input battery 418 raise, and shortened the charging interval.
Fig. 5 shows the block diagram of the terminal that has according to an embodiment of the invention screen.
As shown in Figure 5, have according to an embodiment of the invention the terminal 500 of screen, comprise such as the described charging control circuit 502 of above-mentioned technical scheme and other circuit and device 504.In this technical scheme, this terminal 500 can be under screen opening or the different conditions of closing, realization is to the control of charging current, can guarantee the normal operation of equipment, and putting before this, shorten the charging interval as much as possible, thereby it is unaffected to guarantee that the user experiences, and need not to promote the requirement of charging adapter, save production cost.
Below by reference to the accompanying drawings technical scheme of the present invention is had been described in detail, when the screen of equipment is opened, the power consumption of complete machine is just larger, therefore by charge control method provided by the invention, control circuit, control device with have the terminal of screen, can make equipment in charging process, size according to the open and close of screen control charging current has guaranteed the normal operation of equipment and the carrying out of charging process, has reduced the requirement to charging adapter.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a charge control method is characterized in that, comprising:
Step 102 detects the state of screen, and sends status signal according to described state to control circuit;
Step 104, described control circuit generates current controling signal according to described status signal;
Step 106, described control circuit utilize described current controling signal to control the size of charging current.
2. charge control method according to claim 1 is characterized in that, comprising:
When described screen was opening, described control circuit control reduced described charging current; And
When described screen is closed condition, the described charging current of described control circuit control rising.
3. a charging control circuit is characterized in that, comprising:
The screen state testing circuit sends status signal according to the state of screen to described control circuit;
Described control circuit is connected to described screen state testing circuit, according to the described status signal from described screen state testing circuit that receives, and the size of control charging current.
4. charging control circuit according to claim 3, it is characterized in that, described control circuit comprises: switching circuit and shunt circuit, wherein, described switching circuit is arranged on the branch road of described shunt circuit, described shunt circuit is connected in the resistance between power supply and the charging circuit in parallel when being included in described switching circuit conducting, described resistance comprises the first resistance and the second resistance, wherein, the first pin of described the first resistance is connected to described power supply, and the second pin of described the first resistance is connected to described switching circuit, and the first pin of described the second resistance is connected to described power supply, and the second pin of described the second resistance is connected to described charging circuit.
5. charging control circuit according to claim 4 is characterized in that, described switching circuit comprises: CMOS pipe, JFET pipe and/or transistor.
6. charging control circuit according to claim 5, it is characterized in that, described switching circuit comprises: the PMOS pipe, the grid pin of described PMOS pipe is connected to first node, described first node is connected to described screen state testing circuit and ground, the drain pin of described PMOS pipe is connected to Section Point, described Section Point is connected to described charging circuit and ground, the source electrode pin of described PMOS pipe is connected to described second pin of described the first resistance, described PMOS pipe is by the described status signal of described grid pin reception from described screen state testing circuit, and when described status signal is high level, the cut-off of described PMOS pipe disconnects the branch road at described the first resistance place, when described status signal is low level, the conducting of described PMOS pipe makes the described branch road conducting at described the first resistance place.
7. each described charging control circuit in 6 according to claim 3, it is characterized in that, also comprise: the dividing potential drop current-limiting circuit, described dividing potential drop current-limiting circuit comprises the 3rd resistance and the 4th resistance, wherein, the first pin of described the 3rd resistance is connected to described screen state testing circuit, receives described status signal, and the second pin of described the 3rd resistance is connected to described first node, and described status signal is sent to described switching circuit; The first pin of described the 4th resistance is connected to described first node, and the second pin ground connection of described the 4th resistance.
8. each described charging control circuit in 7 according to claim 3 is characterized in that, also comprises: the first filter circuit and the second filter circuit, wherein
Described the first filter circuit comprises the first electric capacity and the second electric capacity, and the first pin of described the first electric capacity is connected to described second pin of described the second resistance, and the second pin ground connection of described the first electric capacity; The first pin of described the second electric capacity is connected to described second pin of described the second resistance, and the second pin ground connection of described the second electric capacity;
Described the second filter circuit comprises the 3rd electric capacity, and the first pin of described the 3rd electric capacity is connected to described Section Point, and the second pin ground connection of described the 3rd electric capacity.
9. the terminal with screen is characterized in that, comprises such as each described charging control circuit in the claim 3 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102696767A CN103001267A (en) | 2011-09-13 | 2011-09-13 | Charge control method, charge control circuit and terminal with screen |
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| CN2011102696767A CN103001267A (en) | 2011-09-13 | 2011-09-13 | Charge control method, charge control circuit and terminal with screen |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208659A (en) * | 2012-01-16 | 2013-07-17 | 联想(北京)有限公司 | Charging method for electronic apparatus, and electronic apparatus |
| CN104333094A (en) * | 2014-11-21 | 2015-02-04 | 惠州Tcl移动通信有限公司 | Charging current control method and system based on mobile terminal |
| WO2015113335A1 (en) * | 2014-01-28 | 2015-08-06 | 广东欧珀移动通信有限公司 | Detection circuit and method for charging start |
| CN105071489A (en) * | 2015-08-25 | 2015-11-18 | 广东欧珀移动通信有限公司 | Charging method and apparatus of terminal having data exchange function |
| WO2018086362A1 (en) * | 2016-11-11 | 2018-05-17 | 珠海格力电器股份有限公司 | Method of adjusting charging current of electronic apparatus, and electronic apparatus |
| CN108092360A (en) * | 2017-12-25 | 2018-05-29 | 深圳市汉普电子技术开发有限公司 | Control mobile terminal charging current method, apparatus and computer readable storage medium |
| CN113013506A (en) * | 2019-12-19 | 2021-06-22 | 海信视像科技股份有限公司 | Head-mounted display equipment charging method, device and equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101286649A (en) * | 2007-02-16 | 2008-10-15 | 凹凸电子（武汉）有限公司 | Battery management system, electronic apparatus and method for charging battery |
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- 2011-09-13 CN CN2011102696767A patent/CN103001267A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101286649A (en) * | 2007-02-16 | 2008-10-15 | 凹凸电子（武汉）有限公司 | Battery management system, electronic apparatus and method for charging battery |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208659A (en) * | 2012-01-16 | 2013-07-17 | 联想(北京)有限公司 | Charging method for electronic apparatus, and electronic apparatus |
| CN103208659B (en) * | 2012-01-16 | 2016-12-14 | 联想(北京)有限公司 | Electronic equipment charging method and electronic equipment |
| WO2015113335A1 (en) * | 2014-01-28 | 2015-08-06 | 广东欧珀移动通信有限公司 | Detection circuit and method for charging start |
| US9859726B2 (en) | 2014-01-28 | 2018-01-02 | Guang Dong Oppo Mobile Telecommunications Corp., Ltd. | Detection circuit and method for starting charging |
| CN104333094A (en) * | 2014-11-21 | 2015-02-04 | 惠州Tcl移动通信有限公司 | Charging current control method and system based on mobile terminal |
| CN104333094B (en) * | 2014-11-21 | 2017-03-15 | 捷开通讯(深圳)有限公司 | A kind of charging current control method and system based on mobile terminal |
| CN105071489A (en) * | 2015-08-25 | 2015-11-18 | 广东欧珀移动通信有限公司 | Charging method and apparatus of terminal having data exchange function |
| WO2018086362A1 (en) * | 2016-11-11 | 2018-05-17 | 珠海格力电器股份有限公司 | Method of adjusting charging current of electronic apparatus, and electronic apparatus |
| CN108092360A (en) * | 2017-12-25 | 2018-05-29 | 深圳市汉普电子技术开发有限公司 | Control mobile terminal charging current method, apparatus and computer readable storage medium |
| CN113013506A (en) * | 2019-12-19 | 2021-06-22 | 海信视像科技股份有限公司 | Head-mounted display equipment charging method, device and equipment |
| CN113013506B (en) * | 2019-12-19 | 2022-07-12 | 海信视像科技股份有限公司 | Head-mounted display equipment charging method, device and equipment |
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Application publication date: 20130327 |