CN102842948B - Mobile terminal - Google Patents
Mobile terminal Download PDFInfo
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- CN102842948B CN102842948B CN201210359504.3A CN201210359504A CN102842948B CN 102842948 B CN102842948 B CN 102842948B CN 201210359504 A CN201210359504 A CN 201210359504A CN 102842948 B CN102842948 B CN 102842948B
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- power supply
- mobile terminal
- exchange unit
- electrical source
- source exchange
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a mobile terminal comprising a battery and a power supply switching unit, wherein the power supply switching unit is used for switching to a DC (direct current) power supply to supply power to the mobile terminal when receiving a first hard switching signal representing that a DC power supply is accessed to the mobile terminal and switching to the battery to supply power to the mobile terminal when receiving a second hard switching signal representing that the DC power supply is disconnected with the mobile terminal. The mobile terminal disclosed by the invention is provided with the power supply switching unit capable of switching the power supply according to the connecting condition of the DC power supply so as to enable the mobile terminal to be normally started and used through the DC power supply in the case of battery inexistence.
Description
Technical field
The present invention relates to a kind of mobile terminal, a kind of mobile terminal being provided with electrical source exchange unit of special design.
Background technology
Current mobile terminal be all adopt powered battery, and the effect of external power supply is only be battery charging.When battery electric quantity is less, mobile terminal can use in the charge state, but power for mobile terminal remain battery.Then cannot to start shooting when battery electric quantity is considerably less use, could use after the charging of a period of time must being carried out with charger.If lucky dead battery when having emergency to need to use, mobile terminal is with regard to use of cannot starting shooting completely, and this just brings many troubles to user.
Summary of the invention
The technical problem to be solved in the present invention is that the mobile terminal in order to overcome prior art is not having the defect used of cannot starting shooting in battery powered situation, a kind of mobile terminal being provided with electrical source exchange unit is proposed, by being switched to DC power supply when external direct current power supply, this mobile terminal normally can be used when there is no battery.
The present invention solves above-mentioned technical problem by following technical proposals:
The invention provides a kind of mobile terminal, comprise a battery, its feature is, this mobile terminal also comprises an electrical source exchange unit, this electrical source exchange unit is used for being switched to this DC power supply when receiving the first direct-cut operation signal of this mobile terminal of sign one direct current plant-grid connection for this mobile terminal and powers, and is switched to this battery for this mobile terminal to power when receiving the second direct-cut operation signal that this DC power supply of sign disconnects with the connection of this mobile terminal.
Those skilled in the art are to be understood that, it is produced by hardware and non-software generation that the present invention only limit this first direct-cut operation signal, but do not limit the concrete producing method of this first direct-cut operation signal, this the first direct-cut operation signal can be that an interface of this mobile terminal and the connection of this DC power supply directly produce, and also can be the level signal that produces when accessing this mobile terminal of this DC power supply or current signal.Similarly, this second direct-cut operation signal disconnects with the connection of this mobile terminal along with this DC power supply and produces.
Preferably, this mobile terminal also comprises one and is arranged on power supply voltage converting circuit between this DC power supply and this electrical source exchange unit, and it is the rated voltage of this mobile terminal that this power supply voltage converting circuit is used for the voltage transitions of this DC power supply.
Those skilled in the art are to be understood that, rated voltage herein refers to that this mobile terminal normally works required input voltage, this DC power supply of input termination of this power supply voltage converting circuit, export this electrical source exchange unit of termination, by voltage transitions, this mobile terminal all can normally can be worked under the various conditions that this direct current power source voltage is different.
Preferably, the voltage of this DC power supply is greater than the rated voltage of this mobile terminal,
Preferably, this first direct-cut operation signal is a high level signal, and this second direct-cut operation signal is a low level signal.
The present invention does not limit the numerical value of this high level signal and this low level signal, only need two signals to have relative height, thus make this electrical source exchange unit can be switched to different power supplys for this mobile terminal according to the height of the level signal received to power.
Preferably, this power supply voltage converting circuit also comprises a bleeder circuit, for exporting this high level signal when the access voltage of this bleeder circuit is greater than zero to this electrical source exchange unit, export this low level signal when the access voltage of this bleeder circuit equals zero to this electrical source exchange unit.
Preferably, this mobile terminal also comprises a power supply selected cell, for controlling this electrical source exchange unit.
When this DC power supply accesses this mobile terminal, this power supply selected cell controls this electrical source exchange unit this DC power supply of welcome selection or this battery for this mobile terminal and powers.
Preferably, this power supply selected cell is a microprocessor.
On the basis meeting this area general knowledge, above-mentioned each optimum condition, can combination in any, obtains the preferred embodiments of the invention.
Positive progressive effect of the present invention is:
Mobile terminal of the present invention is by arranging one can switch power supply station's power supply electrical source exchange unit according to DC power supply connection, DC power supply can be switched to when accessing DC power supply, mobile terminal normally can be used when not having battery, and under use DC power supply more conveniently situation, save battery, extend the useful life of battery.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the mobile terminal of embodiments of the invention 1.
Fig. 2 is the schematic diagram of the mobile terminal of embodiments of the invention 2.
Fig. 3 is the circuit diagram of the power supply switch circuit of mobile terminal in embodiments of the invention 1,2.
Fig. 4 is the circuit diagram of the power supply voltage converting circuit of mobile terminal in embodiments of the invention 2.
Embodiment
Provide present pre-ferred embodiments below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail, but therefore do not limit the present invention among described scope of embodiments.
Embodiment 1:
As shown in Figure 1, the mobile terminal of the present embodiment comprises battery 4 and an electrical source exchange unit 1, this electrical source exchange unit 1 is powered for being switched to this DC power supply 5 when receiving sign one DC power supply 5 and accessing the first direct-cut operation signal of this mobile terminal for this mobile terminal, is switched to this battery 4 for this mobile terminal to power when receiving and characterizing the second direct-cut operation signal that this DC power supply 5 disconnects with the connection of this mobile terminal.
Those skilled in the art are to be understood that, this the first direct-cut operation signal can have various ways to produce, such as be provided with an access interface on mobile terminals, this access interface sends a signal when there being external power source to insert, and also can send a signal when detecting in circuit and having electric current.Similarly, this second direct-cut operation signal disconnects with the connection of this mobile terminal along with this DC power supply 5 and produces.
This electrical source exchange unit 1 can be power supply switch circuit as shown in Figure 3.As shown in Figure 3, the input of this power supply switch circuit accesses this battery 4 with this DC power supply 5 for power supply.Power-control end (power control terminal) in this power supply switch circuit is for receiving this first direct-cut operation signal or this second direct-cut operation signal, the effect of the inverter in this power supply switch circuit, this power supply switch circuit is connected this DC power supply 5 when receiving this first direct-cut operation signal and is powered, and connects this battery 4 power when receiving this second direct-cut operation signal.
Embodiment 2:
As shown in Figure 2, the difference of the present embodiment and embodiment 1 is only: this mobile terminal of the present embodiment also comprises power supply voltage converting circuit 2 and a power supply selected cell 3.
Consider that mobile terminal has the load voltage value determined, DC power supply 5 then has various different output voltage.In order to the DC power supply 5 enabling this mobile terminal apply various different outside is powered, as shown in Figure 2, this mobile terminal of embodiment 2 also comprises one and is arranged on power supply voltage converting circuit 2 between this DC power supply 5 and this electrical source exchange unit 1, and this power supply voltage converting circuit 2 is for being the rated voltage of this mobile terminal by the voltage transitions of this DC power supply 5.Wherein, the voltage of this DC power supply 5 is greater than the rated voltage of this mobile terminal.
Wherein, this power supply voltage converting circuit 2 as shown in Figure 4, it also comprises a bleeder circuit, export this high level signal when the access voltage of this bleeder circuit is greater than zero to this electrical source exchange unit 1, export this low level signal when the access voltage of this bleeder circuit equals zero to this electrical source exchange unit 1.Easy understand, this high level signal is this first direct-cut operation signal, and this low level signal is this second direct-cut operation signal.Shown in composition graphs 3, this bleeder circuit is when there being this DC power supply 5 to access, and this high level signal of output makes this DC power supply loop of top in Fig. 3 connect, and now this mobile terminal is powered by this DC power supply 5.This bleeder circuit is when accessing without DC power supply 5, this low level signal exported, this inverter effect in Fig. 3 makes this powered battery loop of below in Fig. 3 connect, and this DC power supply loop then disconnects, and now this mobile terminal is then powered by this battery 4.
This power supply selected cell 3 is for controlling this electrical source exchange unit 1, when there being this DC power supply 5 to access this mobile terminal, this power supply selected cell 3 controls this DC power supply 5 of the welcome selection of this electrical source exchange unit 1 or this battery 4 for this mobile terminal and powers.Preferably, this power supply selected cell 3 can be a microprocessor.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these execution modes, but these change and amendment all falls into protection scope of the present invention.
Claims (4)
1. a mobile terminal, comprise a battery, it is characterized in that, this mobile terminal also comprises an electrical source exchange unit, this electrical source exchange unit is used for being switched to this DC power supply when receiving the first direct-cut operation signal of this mobile terminal of sign one direct current plant-grid connection for this mobile terminal and powers, being switched to this battery when receiving and characterizing the second direct-cut operation signal that this DC power supply disconnects with the connection of this mobile terminal for this mobile terminal powers, this mobile terminal also comprises one and is arranged on power supply voltage converting circuit between this DC power supply and this electrical source exchange unit, it is the rated voltage of this mobile terminal that this power supply voltage converting circuit is used for the voltage transitions of this DC power supply, this the first direct-cut operation signal is a high level signal, this the second direct-cut operation signal is a low level signal, this power supply voltage converting circuit also comprises a bleeder circuit, for exporting this high level signal when the access voltage of this bleeder circuit is greater than zero to this electrical source exchange unit, this low level signal is exported to this electrical source exchange unit when the access voltage of this bleeder circuit equals zero,
Wherein, this electrical source exchange unit is power supply switch circuit, this power supply switch circuit comprises an inverter, this bleeder circuit is used for when there being this DC power supply to access, export this high level signal, to make DC power supply loop connect, and when accessing without DC power supply, export this low level signal, powered battery loop is connected and the disconnection of DC power supply loop through this inverter effect.
2. mobile terminal as claimed in claim 1, it is characterized in that, the voltage of this DC power supply is greater than the rated voltage of this mobile terminal.
3. mobile terminal as claimed in claim 1, it is characterized in that, this mobile terminal also comprises a power supply selected cell, for controlling this electrical source exchange unit.
4. mobile terminal as claimed in claim 3, it is characterized in that, this power supply selected cell is a microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210359504.3A CN102842948B (en) | 2012-09-24 | 2012-09-24 | Mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210359504.3A CN102842948B (en) | 2012-09-24 | 2012-09-24 | Mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102842948A CN102842948A (en) | 2012-12-26 |
| CN102842948B true CN102842948B (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210359504.3A Active CN102842948B (en) | 2012-09-24 | 2012-09-24 | Mobile terminal |
Country Status (1)
| Country | Link |
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| CN (1) | CN102842948B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746420B (en) * | 2013-12-31 | 2017-06-30 | 华勤通讯技术有限公司 | Mobile terminal wireless charging circuit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101312303A (en) * | 2007-05-21 | 2008-11-26 | 佛山普立华科技有限公司 | Power source switching apparatus |
| CN101651359A (en) * | 2009-09-10 | 2010-02-17 | 惠州Tcl移动通信有限公司 | Power supply unit and power supply switching method of mobile terminal |
| CN101872997A (en) * | 2009-04-21 | 2010-10-27 | 联咏科技股份有限公司 | Switch control method capable of continuously providing power and device thereof as well as power supply system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100576234B1 (en) * | 2004-04-28 | 2006-05-03 | 삼성전자주식회사 | Electronic device |
| JP2007221872A (en) * | 2006-02-15 | 2007-08-30 | Ricoh Co Ltd | Charging circuit of secondary battery, its power supply switching method and power supply |
| KR100844127B1 (en) * | 2006-09-01 | 2008-07-04 | 삼성전자주식회사 | Control Circuit For Embedded Battery And Driving Method thereof |
| CN102480145A (en) * | 2010-11-30 | 2012-05-30 | 希姆通信息技术（上海）有限公司 | Mobile terminal |
| CN102270876A (en) * | 2010-12-31 | 2011-12-07 | 北京谊安医疗系统股份有限公司 | Power switching apparatus |
| CN202798110U (en) * | 2012-09-24 | 2013-03-13 | 上海华勤通讯技术有限公司 | Mobile terminal |
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2012
- 2012-09-24 CN CN201210359504.3A patent/CN102842948B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101312303A (en) * | 2007-05-21 | 2008-11-26 | 佛山普立华科技有限公司 | Power source switching apparatus |
| CN101872997A (en) * | 2009-04-21 | 2010-10-27 | 联咏科技股份有限公司 | Switch control method capable of continuously providing power and device thereof as well as power supply system |
| CN101651359A (en) * | 2009-09-10 | 2010-02-17 | 惠州Tcl移动通信有限公司 | Power supply unit and power supply switching method of mobile terminal |
Also Published As
| Publication number | Publication date |
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| CN102842948A (en) | 2012-12-26 |
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| CP01 | Change in the name or title of a patent holder |
Address after: 201203 Shanghai city Pudong New Area Zhangjiang Keyuan Road No. 399 Building No. 1 Patentee after: HUAQIN TELECOM TECHNOLOGY Co.,Ltd. Address before: 201203 Shanghai city Pudong New Area Zhangjiang Keyuan Road No. 399 Building No. 1 Patentee before: SHANGHAI HUAQIN TELECOM TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |
Address after: Building 1, No. 399 Keyuan Road, Zhangjiang hi tech park, Pudong New Area, Shanghai, 201203 Patentee after: Huaqin Technology Co.,Ltd. Address before: Building 1, No. 399 Keyuan Road, Zhangjiang hi tech park, Pudong New Area, Shanghai, 201203 Patentee before: Huaqin Technology Co.,Ltd. |
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Address after: Building 1, No. 399 Keyuan Road, Zhangjiang hi tech park, Pudong New Area, Shanghai, 201203 Patentee after: Huaqin Technology Co.,Ltd. Address before: 201203 Building 1, 399 Zhangyuan Road, Zhangjiang, Pudong New Area, Shanghai Patentee before: HUAQIN TELECOM TECHNOLOGY Co.,Ltd. |
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