CN102480145A - Mobile terminal - Google Patents
Mobile terminal Download PDFInfo
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- CN102480145A CN102480145A CN2010105663065A CN201010566306A CN102480145A CN 102480145 A CN102480145 A CN 102480145A CN 2010105663065 A CN2010105663065 A CN 2010105663065A CN 201010566306 A CN201010566306 A CN 201010566306A CN 102480145 A CN102480145 A CN 102480145A
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- voltage
- solar cell
- portable terminal
- solar
- transistor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/10—Applications of fuel cells in buildings
Abstract
The invention discloses a mobile terminal, which comprises a battery, a solar battery, a direct current charging module, a solar charging module, a switching unit and a control unit, wherein the solar charging module is used for carrying out voltage boosting conversion or voltage reduction conversion on the voltage generated by the solar battery to obtain the charging voltage of the battery, the switching unit is used for switching and selecting the solar charging module or the direct current charging module for charging the battery, and the control unit is used for controlling the on-off state of the solar charging module and the direct current charging module, controlling the switching action of the switching unit and detecting whether the direct current charging module has the direct current power supply input or not. The mobile terminal has the advantage that through the voltage boosting and the voltage reduction on the voltage generated by the solar battery, the solar charging can also be realized in cloudy days or at nightfall or under the indoor illumination conditions. In addition, the uninterruptible charging power supply in the mobile terminal is realized through the combination of the mobile terminal and the direct current charging, so the time for continuously using the mobile terminal is effectively prolonged.
Description
Technical field
The present invention relates to a kind of portable terminal, particularly relate to a kind of portable terminal of solar recharging.
Background technology
The calculation process ability of hand-hold electronic equipments (smart mobile phone, GPS tracker, panel computer) is advanced by leaps and bounds at present, has satisfied the basic demand of user to the communication amusement greatly.Constantly the hand-hold electronic equipments of development needs battery that the purpose that communication service can both be provided to reach in any place to the user is provided as power supply; Yet the raising of CPU processing speed and the raising of other hardware performances all are accompanied by the increase of energy consumption; Brought challenge with regard to the supplying cell of giving hand-hold electronic equipments like this; And battery can not work long hours, need be after electric weight exhausts repeatedly charging could supply with the electric energy of electronic equipment necessity.Can not be through the place of charged with direct current, the user can't use electronic equipment after running down of battery, greatly reduces the availability of product like this.
So the means that have and only have battery to provide as the energy have become the bottleneck of hand-hold electronic equipments development.At this moment, the battery bottleneck that appears as of solar panel technology has been introduced new solution, promptly be through solar panel will be endlessly solar energy converting become the form of electric energy to provide the energy to address the above problem to battery.
But at present traditional solar recharging system electric energy that can only under the condition of sun-drenched fine day or strong illumination, receive solar panel charges the battery, and under cloudy day and the room lighting of light a little less than slightly, can't start charging.So this harshness that only could work at the fine day of sunlight direct projection requires to make that the solar recharging system scope of application is very little.
Summary of the invention
The technical problem that the present invention will solve is the defective that only just can carry out at the fine day of sunlight direct projection for the solar recharging of the portable terminal of the solar recharging that overcomes prior art; A kind of portable terminal is provided; Said portable terminal boosts and step-down through voltage that solar cell is produced, makes and under the condition of dusk at cloudy day or room lighting, also can carry out solar recharging.
The present invention solves above-mentioned technical problem through following technical proposals:
The invention provides a kind of portable terminal, comprise a battery, a solar cell and a DC charging module, be characterized in that described portable terminal also comprises:
One solar recharging module, the boost in voltage that is used for that said solar cell is produced transforms or step-down is converted into the charging voltage of battery;
One switching unit is used for switching and selects described solar recharging module or DC charging module to battery charge;
One control unit is used to control the opening and closing of described solar recharging module and DC charging module, controls the change action of said switch unit, and detects described DC charging module whether DC power supply input is arranged.
Preferably, described control unit also is used to detect the voltage of battery.
Preferably, described solar recharging module comprises:
One solar recharging switch element is used to open or close the output of said solar cell, limits big electric current simultaneously and passes through, and for solar cell the electric energy delivery pathways is provided in addition down in off position, protects solar cell;
One power conversion unit is used for the voltage that said solar cell produces is boosted or step-down;
One voltage comparison unit; Be used to store the threshold voltage and that boosts and close threshold voltage; Relatively judge voltage that said solar cell produces whether greater than boosting threshold voltage and/or close threshold voltage, and the carrying out of controlling said power conversion unit boosted accordingly, step-down and shutoff operation.
Preferably, described power conversion unit comprises:
One lowering and stabilizing blood pressure device is used for the voltage that said solar cell produces is carried out step-down;
One boost-voltage regulator is used for the voltage that said solar cell produces is boosted.
Preferably, described lowering and stabilizing blood pressure device and boost-voltage regulator are the DCDC transducer.
Preferably, said lowering and stabilizing blood pressure device is a linear voltage regulator.
Preferably, described solar recharging switch element comprises: a first transistor comprises a base stage, a collector electrode and an emitter; One transistor seconds comprises a base stage, a collector electrode and an emitter; One the 3rd transistor comprises one source pole, a drain electrode and a grid; One diode comprises an anodal and negative pole, and one first resistance and one second resistance;
The base stage of wherein said the first transistor is electrically connected with described control unit; The grounded emitter of said the first transistor; The collector electrode of said the first transistor is electrically connected with the base stage of the 3rd transistorized grid and transistor seconds; The collector electrode of said the first transistor also is electrically connected with solar cell through first resistance, the grounded emitter of described transistor seconds, and the collector electrode of said transistor seconds also is electrically connected with solar cell through second resistance; The described the 3rd transistorized source electrode is electrically connected with power conversion unit; Described the 3rd transistor drain is electrically connected with solar cell, and the positive pole of said diode is electrically connected with power conversion unit, and the negative pole of said diode is electrically connected with solar cell.
Preferably, said solar recharging switch element also comprises one the 3rd resistance, and said power conversion unit is connected through the positive electrical of said the 3rd resistance with the said the 3rd transistorized source electrode and diode.
Preferably, described portable terminal also comprises one first interface, is used to connect outside additional solar cell and described solar recharging module.
Preferably, described portable terminal also comprises one second interface, is used to connect outside DC power supply and described DC charging module.
Positive progressive effect of the present invention is:
Portable terminal of the present invention boosts and step-down through voltage that solar cell is produced, makes and under the condition of dusk at cloudy day or room lighting, also can carry out solar recharging.In addition combining of the present invention and DC charging, realized the free of discontinuities charging power supply in the portable terminal, and can cross providing of under most occasions assurance battery power, thereby improved effectively the time that can use portable terminal continuously.
Description of drawings
Fig. 1 is the circuit structure block diagram of the preferred embodiment of portable terminal of the present invention.
Fig. 2 is the circuit structure block diagram of solar recharging module of the preferred embodiment of portable terminal of the present invention.
Fig. 3 is the circuit diagram of solar recharging switch element of the preferred embodiment of portable terminal of the present invention.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to specify technical scheme of the present invention.
Shown in Figure 1 is the circuit structure block diagram of portable terminal of the present invention; Wherein as shown in Figure 1, the portable terminal A of solar recharging comprises a solar recharging module 1, a DC charging module 2, a switching unit 3, a control unit 4, a battery 5, a solar cell 6, one first interface 7 and second interface 8.
As shown in Figure 1; First interface 7 of the portable terminal A of described solar recharging is electrically connected with additional solar cell B; Said first interface 7 also is electrically connected with solar recharging module 1, thereby described additional solar cell B also provides charging voltage for solar recharging module 1.
Wherein, described solar recharging module 1 is used for the boost in voltage that said solar cell 6 produces is transformed or step-down is converted into the charging voltage of battery 5; Described DC charging module 2 is used for the charging voltage of the battery 5 of output DC source C input; Described switch unit 3 is used to switch the charging of selecting described solar recharging module 1 or 2 pairs of batteries 5 of DC charging module.
The control unit of being told 4 is used to control the opening and closing of described solar recharging module 1 and DC charging module 2; Control the change action of said switch unit 3, and detect the voltage whether described DC charging module 2 has the DC power supply input and detect battery 5.
Described solar cell 6 is used for converting light into power supply with additional solar cell B; Described DC power supply C is used to provide the charging voltage of battery.
The circuit structure block diagram of the solar recharging module 1 in this enforcement is as shown in Figure 2, and wherein said solar recharging module 1 comprises a solar recharging switch element 11, a power conversion unit 12 and a voltage comparison unit 13.
Wherein said solar recharging switch element 11 is used to open or close the charging voltage of said solar cell 6 and additional solar cell B output; And be that solar cell 6 provides the electric energy delivery pathways in addition with additional solar cell B after closing, the protection solar cell; Described power conversion unit 12 is used for said solar cell 6 and the charging voltage that additional solar cell B produces are boosted or step-down; Described voltage comparison unit 13 is used to store the threshold voltage and that boosts and closes threshold voltage; Relatively judge charging voltage that said solar cell 6 and additional solar cell B produce whether greater than boosting threshold voltage and/or close threshold voltage, and the carrying out of controlling said power conversion unit 12 boosted accordingly, step-down and shutoff operation.
The booster voltage that described in the present embodiment voltage comparison unit 13 prestores is 4.2V, and closing voltage is 0.5V.When voltage comparison unit 13 judge charging voltages greater than booster voltage 4.2V when closing voltage 0.5V; Control said power conversion unit 12 and carry out step-down; When voltage comparison unit 13 judges that charging voltages are when closing voltage 0.5V and being not more than booster voltage 4.2V; Control said power conversion unit 12 and boost, when voltage comparison unit 13 judged that charging voltage is closed voltage for a short time in 0.5V and booster voltage 4.2V, said power conversion unit 12 was closed in control in addition.Those skilled in the art can be according to the actual needs and the requirement of battery charge, selects different voltage and the booster voltages of closing for use, realizes the function of the boosting of the said power conversion unit 12 of identical control, step-down and shutoff operation.
In the present embodiment, described power conversion unit 12 comprises a lowering and stabilizing blood pressure device 121 and a boost-voltage regulator 122.Wherein said lowering and stabilizing blood pressure device 121 is DCDC transducer (DC to DC converter) or linear voltage regulator, and described boost-voltage regulator 122 is the DCDC transducer.The staff of this area can be according to actual needs realizes identical purpose of boosting with step-down with different lowering and stabilizing blood pressure device that requires to adopt other and boost-voltage regulator.
In the present embodiment, the circuit structure diagram of described solar recharging switch element 11 is as shown in Figure 3, and wherein said solar recharging switch element 11 comprises a first transistor 111, comprises a base stage, a collector electrode and an emitter; One transistor seconds 112 comprises a base stage, a collector electrode and an emitter; One the 3rd transistor 113 comprises one source pole, a drain electrode and a grid; One diode 114 comprises anodal and a negative pole, and one first resistance 155, one second resistance 116 and one the 3rd resistance 117.
The base stage of wherein said the first transistor 111 is electrically connected with described control unit 4; The grounded emitter of said the first transistor 111; The collector electrode of said the first transistor 111 is electrically connected with the grid of the 3rd transistor 113 and the base stage of transistor seconds 112; The collector electrode of said the first transistor 111 also is electrically connected with additional solar cell B with solar cell 6 through first resistance 115; The grounded emitter of described transistor seconds 112; The collector electrode of said transistor seconds 112 also is electrically connected with additional solar cell B with solar cell 6 through second resistance 116, and the source electrode of described the 3rd transistor 113 is electrically connected with power conversion unit 12, and the drain electrode of described the 3rd transistor 113 is electrically connected with additional solar energy used batteries B with solar cell 6; The positive pole of said diode 114 is electrically connected with power conversion unit 12, and the negative pole of said diode is electrically connected with additional solar cell B with solar cell 6; Said power conversion unit 12 also is connected with the source electrode of said the 3rd transistor 113 and the positive electrical of diode 114 through said the 3rd resistance 117.
The concrete operation principle of present embodiment is following:
At first, whether control unit 4 detects battery 5 needs charging, does not need charging if detect battery 5; Then control unit 4 is waited for next time the detection to battery 5; Otherwise control unit 4 detects DC power supply C and whether passes through interface 2 to DC charging module 2 input charging voltages, if testing result is for being; Then carry out the DC power supply charging, otherwise carry out solar recharging.
The DC power supply charging:
At first; Thereby control unit 4 is closed solar recharging module 1 and is closed solar recharging, and promptly control unit 4 output low levels promptly export the base stage of the first transistor 111 of solar recharging switch element 11 to to solar recharging switch element 11; Thereby close the first transistor 111; This moment, the grid of the 3rd transistor 113 was high level, thereby the 3rd transistor 113 is saturated, and meanwhile the base stage of transistor seconds 112 is high level; So transistor seconds 112 conductings; Thereby the charge power supply of solar cell 6 and additional solar cell B input is through transistor seconds 112 inflow places, thereby realized the shutoff of solar charging electric pathway, as above-mentioned and be that solar cell provides protection with mode that the solar cell electric energy is discharged.
After this control unit 4 is opened DC charging module 2, the charging voltage of C input from the output DC source, and the charging path between control switch unit 3 unlatching DC charging modules 2 and the battery 5, and charge.
Solar recharging:
At first; Thereby control unit 4 is opened solar recharging module 1 and is opened solar recharging; Be that control unit 4 output high level are to solar recharging switch element 11; Promptly export the base stage of the first transistor 111 of solar recharging switch element 11 to; Thereby make the first transistor 111 conductings, thereby make that the base stage of transistor seconds 112 and the grid of the 3rd transistor 113 are low level, thereby close transistor seconds 112 and open the 3rd transistor 113; Thereby make the charge power supply of solar cell 6 and additional solar cell B input big electric current restriction is provided through the 3rd transistor 113 and the 3rd resistance 117 arrival power conversion units 12, the three resistance 117.Thereby more than realized the unlatching of solar charging electric pathway.
After this; If the charging voltage of voltage comparison unit 13 detection solar cells 6 and additional solar cell B input is greater than booster voltage 4.2V and close voltage 0.5V; The lowering and stabilizing blood pressure device 121 of voltage comparison unit 13 power-on converting units 12 then, thus the solar cell 6 and the charging voltage step-down of additional solar cell B input converted into the charging voltage of stable battery 5.
If voltage comparison unit 13 detects that the charging voltage of solar cells 6 and additional solar cell B input is not more than booster voltage 4.2V and greater than closing voltage 0.5V; The boost-voltage regulator 122 of voltage comparison unit 13 power-on converting units 12 then, thus be the charging voltage of stable battery 5 with the charging voltage boost conversion of solar cell 6 and additional solar cell B input.
If voltage comparison unit 13 detects the charging voltage of solar cells 6 and additional solar cell B input and both had been not more than booster voltage 4.2V and also is not more than and closes voltage 0.5V; Voltage comparison unit 13 powered-down converting units 12 then, thus stop to import the charging voltage of solar cell 6 and additional solar cell B input.
Then; Control unit 4 control switch units 3 make the solar recharging module 1 and the charging path of battery 5 open, and detect the voltage of battery 5, if battery 5 has been full of; Then control unit 4 is closed solar recharging module 1 through output low level; Thereby stop battery 5 charging, the detailed process of wherein closing solar recharging module 1 is not just being given unnecessary details as stated here; Otherwise wait for the voltage that detects battery 5 once more.
Though more than described 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 limited appended claims.Those skilled in the art can make numerous variations or modification to these execution modes under the prerequisite that does not deviate from principle of the present invention and essence, but these changes and modification all fall into protection scope of the present invention.
Claims (10)
1. a portable terminal comprises a battery, a solar cell and a DC charging module, it is characterized in that described portable terminal also comprises:
One solar recharging module, the boost in voltage that is used for that said solar cell is produced transforms or step-down is converted into the charging voltage of battery;
One switching unit is used for switching and selects described solar recharging module or DC charging module to battery charge;
One control unit is used to control the opening and closing of described solar recharging module and DC charging module, controls the change action of said switch unit, and detects described DC charging module whether DC power supply input is arranged.
2. portable terminal as claimed in claim 1 is characterized in that described control unit also is used to detect the voltage of battery.
3. portable terminal as claimed in claim 1 is characterized in that, described solar recharging module comprises:
One solar recharging switch element is used to open or close the output of said solar cell, and limit big electric current simultaneously and pass through, and in off position down for solar cell provides the electric energy delivery pathways, the protection solar cell;
One power conversion unit is used for the voltage that said solar cell produces is boosted or step-down;
One voltage comparison unit; Be used to store the threshold voltage and that boosts and close threshold voltage; Relatively judge voltage that said solar cell produces whether greater than boosting threshold voltage and/or close threshold voltage, and the carrying out of controlling said power conversion unit boosted accordingly, step-down and shutoff operation.
4. portable terminal as claimed in claim 3 is characterized in that, described power conversion unit comprises:
One lowering and stabilizing blood pressure device is used for the voltage that said solar cell produces is carried out step-down;
One boost-voltage regulator is used for the voltage that said solar cell produces is boosted.
5. portable terminal as claimed in claim 4 is characterized in that, described lowering and stabilizing blood pressure device and boost-voltage regulator are the DCDC transducer.
6. portable terminal as claimed in claim 4 is characterized in that, said lowering and stabilizing blood pressure device is a linear voltage regulator.
7. portable terminal as claimed in claim 3 is characterized in that, described solar recharging switch element comprises: a first transistor comprises a base stage, a collector electrode and an emitter; One transistor seconds comprises a base stage, a collector electrode and an emitter; One the 3rd transistor comprises one source pole, a drain electrode and a grid; One diode comprises an anodal and negative pole, and one first resistance and one second resistance;
The base stage of wherein said the first transistor is electrically connected with described control unit; The grounded emitter of said the first transistor; The collector electrode of said the first transistor is electrically connected with the base stage of the 3rd transistorized grid and transistor seconds; The collector electrode of said the first transistor also is electrically connected with solar cell through first resistance, the grounded emitter of described transistor seconds, and the collector electrode of said transistor seconds also is electrically connected with solar cell through second resistance; The described the 3rd transistorized source electrode is electrically connected with power conversion unit; Described the 3rd transistor drain is electrically connected with solar cell, and the positive pole of said diode is electrically connected with power conversion unit, and the negative pole of said diode is electrically connected with solar cell.
8. portable terminal as claimed in claim 7 is characterized in that, said solar recharging switch element also comprises one the 3rd resistance, and said power conversion unit is connected through the positive electrical of said the 3rd resistance with the said the 3rd transistorized source electrode and diode.
9. portable terminal as claimed in claim 1 is characterized in that, described portable terminal also comprises one first interface, is used to connect outside additional solar cell and described solar recharging module.
10. portable terminal as claimed in claim 1 is characterized in that, described portable terminal also comprises one second interface, is used to connect outside DC power supply and described DC charging module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105663065A CN102480145A (en) | 2010-11-30 | 2010-11-30 | Mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105663065A CN102480145A (en) | 2010-11-30 | 2010-11-30 | Mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102480145A true CN102480145A (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105663065A Pending CN102480145A (en) | 2010-11-30 | 2010-11-30 | Mobile terminal |
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| CN (1) | CN102480145A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769327A (en) * | 2012-07-25 | 2012-11-07 | 东莞宇龙通信科技有限公司 | Charger power source control method and charger |
| CN102842948A (en) * | 2012-09-24 | 2012-12-26 | 上海华勤通讯技术有限公司 | Mobile terminal |
| CN107104504A (en) * | 2017-06-29 | 2017-08-29 | 上海传英信息技术有限公司 | A kind of mobile terminal and mobile terminal charging method |
| CN110212613A (en) * | 2019-06-28 | 2019-09-06 | 深圳市锐明技术股份有限公司 | A kind of charge control switching circuit and charge control switching method |
| CN117220399A (en) * | 2023-09-13 | 2023-12-12 | 北京昆仑海岸科技股份有限公司 | Lithium battery, solar power supply conversion circuit and conversion control method |
-
2010
- 2010-11-30 CN CN2010105663065A patent/CN102480145A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769327A (en) * | 2012-07-25 | 2012-11-07 | 东莞宇龙通信科技有限公司 | Charger power source control method and charger |
| CN102842948A (en) * | 2012-09-24 | 2012-12-26 | 上海华勤通讯技术有限公司 | Mobile terminal |
| CN107104504A (en) * | 2017-06-29 | 2017-08-29 | 上海传英信息技术有限公司 | A kind of mobile terminal and mobile terminal charging method |
| CN110212613A (en) * | 2019-06-28 | 2019-09-06 | 深圳市锐明技术股份有限公司 | A kind of charge control switching circuit and charge control switching method |
| CN117220399A (en) * | 2023-09-13 | 2023-12-12 | 北京昆仑海岸科技股份有限公司 | Lithium battery, solar power supply conversion circuit and conversion control method |
| CN117220399B (en) * | 2023-09-13 | 2024-03-12 | 北京昆仑海岸科技股份有限公司 | Lithium battery, solar power supply conversion circuit and conversion control method |
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Application publication date: 20120530 |