CN102163869A - Power supply device, mobile terminal and start method of mobile terminal - Google Patents
Power supply device, mobile terminal and start method of mobile terminal Download PDFInfo
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- CN102163869A CN102163869A CN2011100665266A CN201110066526A CN102163869A CN 102163869 A CN102163869 A CN 102163869A CN 2011100665266 A CN2011100665266 A CN 2011100665266A CN 201110066526 A CN201110066526 A CN 201110066526A CN 102163869 A CN102163869 A CN 102163869A
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Abstract
The invention discloses a power supply device, a mobile terminal and a start method of the mobile terminal, and relates to the circuit technology. Through the embodiment of the invention, a first access unit connected to a lithium battery is kept in the power supply device, and a second access unit connected to other types of batteries is added to the power supply device; and when the voltage of the connected battery is enough, a functional unit needing power supply is controlled to be started. As the batteries such as dry batteries and the like are common in daily life and easy to purchase, the batteries such as dry batteries and the like are used as the backup power supply, thereby facilitating the power supply of the mobile terminal as well as the use of the users.
Description
Technical field
The embodiment of the invention relates to circuit engineering, relates in particular to the startup method of a kind of electric supply installation, portable terminal and portable terminal.
Background technology
Portable terminals such as hand telephone set, handhold GPS navigator, handheld POS terminal have obtained large-scale use at present, and these all are to need battery powered portable terminal, because its battery electric quantity that carries is limited, if be in the environment that can not charge, after the electric energy from charged pool exhausted, portable terminal just can not work on.
Solve battery of mobile terminal at present and exhaust powerup issue afterwards, the solution that adopts mainly is for being embodied as the function of portable terminal charging, as solar charger, the hand generator charger, but because these device efficiencies are low, be subjected to various condition influence big, be not widely adopted always.
Summary of the invention
The embodiment of the invention provides the startup method of a kind of electric supply installation, portable terminal and portable terminal, to make things convenient for the power supply of portable terminal.
A kind of electric supply installation comprises:
First access unit is used to insert lithium battery, and connects the functional unit of required power supply;
Second access unit is used to insert the battery of other type, and connects the functional unit of required power supply;
AD conversion unit connects described second access unit, is used for the magnitude of voltage output digital signal corresponding according to described second access unit output;
Control unit, be used for after start-up course determines that described first access unit does not insert lithium battery and described second access unit and inserts the battery of other type, determine the magnitude of voltage of second access unit output according to the digital signal of described AD conversion unit output, and after the magnitude of voltage of described second access unit output reaches set point, control described functional unit and start.
A kind of portable terminal comprises the electric supply installation that the embodiment of the invention provides.
A kind of startup method of portable terminal comprises:
First access unit that is identified for inserting lithium battery does not insert lithium battery, and after second access unit that is used to insert the battery of other type inserts the battery of other type, determine the magnitude of voltage of second access unit output according to the digital signal of AD conversion unit output, described AD conversion unit is used for the magnitude of voltage output digital signal corresponding according to described second access unit output, and described first access unit is connected the functional unit of required power supply in the described portable terminal with described second access unit;
After the magnitude of voltage of determining described second access unit output reaches set point, control described functional unit and start.
The embodiment of the invention provides a kind of electric supply installation, the startup method of portable terminal and portable terminal, when keeping inserting first access unit of lithium battery in the electric supply installation, in electric supply installation, increase by second access unit that is used to insert other type cell, and under the enough situation of the cell voltage that is inserted, control needs the functional unit of power supply to start, because the battery of types such as dry cell is found everywhere in daily life, buy easily, so the battery of types such as use dry cell is as stand-by power supply, then made things convenient for the power supply of portable terminal, also convenient for users to use.
Description of drawings
One of structural representation of the electric supply installation that Fig. 1 provides for the embodiment of the invention;
Fig. 2 a-Fig. 2 c is the structural representation of first access unit and second access unit in the embodiment of the invention;
Two of the structural representation of the electric supply installation that Fig. 3 provides for the embodiment of the invention;
The pressure regulation element circuit schematic diagram that Fig. 4 provides for the embodiment of the invention;
The startup schematic flow sheet that Fig. 5 and Fig. 6 provide for the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of electric supply installation, the startup method of portable terminal and portable terminal, when keeping inserting first access unit of lithium battery in the electric supply installation, in electric supply installation, increase by second access unit that is used to insert other type cell, and under the enough situation of the cell voltage that is inserted, control needs the functional unit of power supply to start, because the battery of types such as dry cell is found everywhere in daily life, buy easily, so the battery of types such as use dry cell is as stand-by power supply, then made things convenient for the power supply of portable terminal, also convenient for users to use.
As shown in Figure 1, the electric supply installation that the embodiment of the invention provides comprises: first access unit 101, second access unit 102, AD conversion unit 103 and control unit 104, wherein:
AD conversion unit 103 connects second access unit 102, is used for the magnitude of voltage output digital signal corresponding according to 102 outputs of second access unit;
Control unit 104, be used for after start-up course determines that first access unit 101 does not insert the battery of lithium battery and second access unit access, 102 other types, determine the magnitude of voltage of second access unit, 102 outputs according to the digital signal of AD conversion unit output, and after the magnitude of voltage of second access unit, 102 outputs reaches set point, the controlled function unit starting.
When the lithium battery quantity not sufficient, second access unit 102 that just can pass through to be increased inserts the battery of other type, for example: the dry cell of various models, button cell, storage battery, chewing gum battery etc., even the interface of corresponding certain special battery is not set in second access unit 102, as long as the magnitude of voltage of this battery is in the voltage range of regulation, also can this battery be received on second access unit 102 by the mode of external circuit, when the cell voltage that is inserted at second access unit 102 is enough, control unit 104 just can be controlled function corresponding unit starting in the equipment that electric supply installation powers, thereby make when user's lithium battery quantity not sufficient or user do not carry lithium battery, use the start battery equipment of other form, convenient for users to use.
Certainly, first access unit 101 can use identical space to place battery with second access unit 102, be the kind difference according to the battery that is inserted, and different access interfaces is provided, Fig. 2 a-Fig. 2 c shows several feasible access form of corresponding lithium battery and dry cell.
Further because the operating voltage of general dry battery is between the 1V to 1.5V, and common use lithium ion battery operating voltage range is set as between the 3V to 4.2V, therefore, must raise by the voltages of certain booster circuit with two joint general dry batteries outputs.In order to make a greater variety of other form batteries to insert by second access unit 102, and not limited by the strictness of equipment rated voltage, can on second access unit 102, connect pressure regulation unit 105, as shown in Figure 3, pressure regulation unit 105 is used for the voltage of second access unit output is adjusted to setting voltage value, like this, if the voltage that battery provided that inserted in the input range of pressure regulation unit 105.
For example, the work rated voltage of certain portable terminal is 3.7V, can normally use in the scope of 3V-4.2V usually, if regulating circuit is not set so, can use the dry cell of 2 joint 1.5V, or use the dry cell of 3 joint 1.2V, perhaps use the battery of output voltage between 3V-4.2V; After increasing regulating circuit 105, if the input voltage of regulating circuit 105 is 1V-6V, output voltage is 3.7V, so, as long as the battery voltage range that inserts is between 1V-6V, be convenient to the user and obtain suitable battery, the magnitude of voltage of supplying with this portable terminal then is always 3.7V, also makes the portable terminal more stable work.
When regulating circuit was booster circuit, the pressure reduction of input and output was more little, and the efficient of so whole booster circuit is high more.Like this, can use two joint dry cell series connection, its output voltage is 2V to 3V, the supply power voltage of relatively more approaching general lithium battery.
Grasp the dump energy of second access unit 102 battery that inserts for the ease of the user, control unit 104 also is used for:
Behind the start battery functional unit of other type that inserts by second access unit 102, according to the magnitude of voltage of second access unit, 102 outputs, evaluate the battery electric quantity situation that second access unit 102 is inserted, and output.
Control unit 104 can be determined the magnitude of voltage of second access unit, 102 outputs according to the digital signal that AD conversion unit 103 is exported.
The user just can in time prepare standby battery according to the battery electric quantity situation of being exported like this, has further facilitated user's use.
Pressure regulation unit 105 in the embodiment of the invention can adopt various pressure regulation unit 105 commonly used at present, as long as the output of the voltage of the realistic electric supply installation of output voltage values of pressure regulation unit 105 requires, the input voltage range of pressure regulation unit 105 is big more then good more, and Vietnamese side just user obtains suitable battery access.
Be used for the electric energy that makes battery is as much as possible, the embodiment of the invention can adopt booster circuit as regulating circuit, selects the lower battery of voltage simultaneously for use; Simultaneously because the change in voltage scope of batteries such as dry cell is bigger, it is preferable that employed booster circuit satisfies the input of wide region; In order to guarantee the working stability of electronic equipment, booster circuit needs constant voltage output and the output of high electric current; Owing to used the booster circuit of constant voltage output, electronic equipment needs the voltage of monitoring dry cell in real time simultaneously, reminds so that send low electricity shutdown, is convenient to the user and in time prepares reserve battery.
For reduce the volume of electric supply installation as far as possible, can select for use suitable integrated chip to realize function corresponding in the pressure regulation unit 105, when concrete the use, can be with the SKIPB pin ground connection of integrated chip, and the operating state of the control of the ON pin by integrated chip integrated chip, thereby reduce the power consumption of integrated chip.
The embodiment of the invention provides a kind of concrete pressure regulation unit 105, as shown in Figure 4, in this pressure regulation unit 105, the BATT pin of integrated chip connect ON pin, second access unit 102 positive source, connect the LX pin by first inductance L 1, and by first capacitor C, 1 ground connection, its POUT pin passes through the circuit ground that first resistance R 1 connects the OUTS pin, passes through the 3rd capacitor C 3 ground connection, also connects by second resistance R 2 and the 3rd resistance R 3, its OUTS pin is also by second capacitor C, 2 ground connection, and its FB pin is by second resistance R, 2 ground connection.
The device value that is marked among Fig. 4 is reference value, can adjust according to actual conditions in actual use.
Integrated chip in the embodiment of the invention can use the MAX8815A chip, and it has the wide region input voltage of 1.2V to 5.5V, has the wide region output voltage of 3.3V to 5V simultaneously.By pressure regulation unit 105 as shown in Figure 4, the scope of 102 input voltages that can accept of second access unit in the embodiment of the invention is: 1.2V-5.5V, inserting 1-3 joint dry cell can meet the demands.Simultaneously can guarantee the AA battery along with electric weight descends, the whole variation process from 1.5V to 1V, the MAX8815A chip can operate as normal.
By setting the value of resistance R 2 and R3, can adjust output voltage.The design is set at 97K Ω with R3, and R2 is set at 50K Ω, can obtain the constant voltage about 3.7V.This voltage is the nominal operation voltage of lithium ion battery, also is the lower voltage that can guarantee that general mobile terminal performance is preferable.Selecting this lower voltage for use, is the voltage difference minimum for the input and output that can make MAX8815A, thereby makes the maximizing efficiency of whole booster circuit.
The design has selected a kind of power-saving working mode of MAX8815A for use, is about to SKIPB ground connection, only by ON pin control chip operating state.The design receives ON on the BATT, and promptly as long as insert two joint AA batteries, this circuit has just worked together.The electric current that needs when portable terminal is hour (below the 90mA), and MAX8815A is in low power consumpting state, and the electric current of MAX8815A chip autophage is about about 30uA; When its portable terminal is in big current work state (more than the 90mA), MAX8815A is in the full speed operation state, at this moment can provide stable voltage and greater than the electric current of 1A, but at this moment the current ratio of MAX1185A chip autophage is bigger.It is when guaranteeing to be in low power consumpting states such as off-mode when portable terminal that the design selects the purpose of this pattern for use, the battery electric quantity of complete machine consumes least.
Because the voltage of booster circuit output is a steady state value, portable terminal itself can not detect the electric weight of battery.Therefore, AD conversion unit 103 in the embodiment of the invention connects the BATT pin and the POUT pin of integrated chip simultaneously, voltage by the output of POUT pin carries out work, and detect the power source voltage value that second access unit 102 is inserted, AD conversion unit 103 can convert the magnitude of voltage of BATT pin to digital signal, the processing unit that offers corresponding control unit 104 and need the equipment of power supply, the calculation process of treated unit again is presented at this voltage on the screen of handheld device or by alternate manner and exports to the user by particular form.Such as when the equipment of power supply is mobile phone, can show a battery electric quantity icon by the mobile phone screen upper right corner, when the full electricity of battery (two cell voltage series voltages are 3.0V), battery icon shows full lattice; When battery electric quantity is deficient (two cell voltage series voltages are 2.2V), battery icon shows the space, and low electricity shutdown is provided.
Because pin is an identification resistance in the middle of the general lithium ion battery, by this resistance, control unit 104 can judge whether that lithium ion battery is plugged on first access unit 101.But the battery itself that second access unit 102 is inserted is not used in the recognition mechanism whether identification has inserted usually, so the embodiment of the invention can use AD conversion unit 103 to discern when the battery of judging second access unit 102 inserts situation.That is: when put in the battery compartment be lithium ion battery the time, when pressing the start key of the equipment of being powered, control unit 104 is the actuating section code at first, whether the middle pin of judging lithium ion battery is connected with correct resistance, when correct resistance, what then think current use is lithium ion battery, starts the related procedure of using lithium ion battery; When put in the battery compartment be dry cell the time, in the start process, control unit 104 is read less than lithium ion battery identification resistance, and then judge by AD conversion unit 103 whether voltage is arranged on the BATT pin, if being arranged, voltage judges again whether whether the scope of voltage satisfies the start condition,, reach the magnitude of voltage of setting that is, enter next step start flow process again if satisfy the start condition, and start the relevant setting of using dry cell.
Use relevant setting of dry cell can comprise the following aspects:
Because the battery of types such as the dry cell that is inserted, button cell all is the battery that can not charge usually, so for guaranteeing the safe in utilization of user, control unit 104 also is used for:
Behind the start battery functional unit of other type that inserts by second access unit 102, when the charhing unit that is used to charge starts, use charhing unit to power as functional unit, and cut off the path of second access unit 102 and other unit, promptly cut off the supply access and the charging path of second access unit 102, avoided being the battery charge in second access unit 102 and save using battery in second access unit 102.
So just used the power devices of charhing unit as the needs power supply, saved the electric weight of battery, cut off the path of second access unit 102 with other unit simultaneously, having avoided is the battery charge that inserts in second access unit 102.Portable terminals such as general mobile phone all have the function of cutting off path, do not repeat them here
By saving the electric energy that uses institute's access battery, the service time of prolongation battery, control unit 104 also is used for as far as possible:
Behind the start battery functional unit of other type that inserts by second access unit 102, the controlled function unit enters battery saving mode.
When using the battery that second access unit 102 inserted simultaneously, the judgement of cell voltage is carried out according to the digital signal of AD conversion unit output; And make the display packing of battery electric quantity satisfy the discharging law of other form batteries such as dry cell, be convenient to the user and grasp battery electric quantity.
When using the more piece dry cell, can on circuit, increase the circuit that prevents the battery reversal connection, also can limit by the shape of second access unit 102, prevent the dry cell reversal connection.
The embodiment of the invention is also corresponding to provide a kind of startup method, and as shown in Figure 5, this method comprises:
Step S501, first access unit that is identified for inserting lithium battery do not insert lithium battery, and after second access unit that is used to insert the battery of other type inserts the battery of other type, determine the magnitude of voltage of second access unit output according to the digital signal of AD conversion unit output, wherein, AD conversion unit is used for the magnitude of voltage output digital signal corresponding according to the output of second access unit, and first access unit is connected the functional unit of required power supply in the portable terminal with described second access unit;
Step S502, after the magnitude of voltage of determining the output of second access unit reaches set point, the controlled function unit starting.
For make the user can be real-time the actual electric weight situation of electrolytic cell, behind the start battery functional unit of other type that inserts by second access unit, can also be according to the magnitude of voltage of second access unit output, evaluate the battery electric quantity situation that second access unit is inserted, and export to the user by peripheral hardwares such as screens.
Because other batteries such as dry cell can not charge usually; therefore; behind the start battery functional unit of other type that inserts by second access unit; if the user charges; then need to carry out necessary safeguard measure, when the charhing unit that is used to charge starts, can use charhing unit to power as functional unit; and cut off the supply access of second access unit and the path that charges, thereby save battery electric quantity and protect battery not to be recharged.
In order further to save the electric weight of battery, behind the start battery functional unit of other type that inserts by second access unit, the controlled function unit enters battery saving mode, at present, the battery saving mode that most terminals have acquiescence, or can battery saving mode be set by the user, the common lower and no tones of screen intensity in battery saving mode, thereby save power consumption as far as possible, prolong the service time of battery.
In embodiments of the present invention, start-up course can be opened control by control unit 104, and is concrete, and as shown in Figure 6, in the embodiment of the invention, control unit 104 can following flow process carry out in start-up course:
Step S601, receive enabling signal;
Step S602, judge whether lithium ion battery identification resistance value is correct, if, execution in step S603, if not, execution in step S604;
Step S603, startup corresponding functional unit also start the setting of using lithium ion battery;
Step S604, judge whether AD conversion unit has digital signal output, if not, execution in step S605, if, execution in step S606;
Step S605, electric supply installation are unusual, stop to start;
Step S606, according to the digital signal of AD conversion unit output, judge whether the magnitude of voltage of second access unit 102 battery that inserts reaches set point, if, execution in step S607, if not, execution in step S608;
Step S607, startup corresponding functional unit also start the setting of using dry cell;
Step S608, undertension stop to start.
The embodiment of the invention also provides a kind of portable terminal, comprises the electric supply installation that the embodiment of the invention provides in this portable terminal.
In portable terminal, the unit of the unit that needs the functional unit of power supply to be specially to be used to communicate by letter, the specific implementation mobile terminal functions such as unit of output output.
In having the portable terminal of Presentation Function, display unit also can be used for the battery electric quantity situation that shows that second access unit 102 is inserted.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (12)
1. an electric supply installation is characterized in that, comprising:
First access unit is used to insert lithium battery, and connects the functional unit of required power supply;
Second access unit is used to insert the battery of other type, and connects the functional unit of required power supply;
AD conversion unit connects described second access unit, is used for the magnitude of voltage output digital signal corresponding according to described second access unit output;
Control unit, be used for after start-up course determines that described first access unit does not insert lithium battery and described second access unit and inserts the battery of other type, determine the magnitude of voltage of second access unit output according to the digital signal of described AD conversion unit output, and after the magnitude of voltage of described second access unit output reaches set point, control described functional unit and start.
2. electric supply installation as claimed in claim 1 is characterized in that, also comprises:
The pressure regulation unit connects described second access unit, is used for the voltage of described second access unit output is adjusted to setting voltage value.
3. electric supply installation as claimed in claim 1 is characterized in that, described control unit also is used for:
Behind the described functional unit of start battery of other type that inserts by described second access unit, according to the magnitude of voltage of described second access unit output, evaluate the battery electric quantity situation that described second access unit is inserted, and output.
4. as the arbitrary described electric supply installation of claim 1-3, it is characterized in that described second access unit specifically is used for: insert 1-3 joint dry cell.
5. electric supply installation as claimed in claim 4 is characterized in that, described control unit also is used for:
Behind the described functional unit of start battery of other type that inserts by described second access unit, when the charhing unit that is used to charge starts, using charhing unit is described functional unit power supply, and cuts off the supply access and the charging path of described second access unit.
6. as the arbitrary described electric supply installation of claim 1-3, it is characterized in that described control unit also is used for:
Behind the described functional unit of start battery of other type that inserts by described second access unit, control described functional unit and enter battery saving mode.
7. a portable terminal is characterized in that, comprises arbitrary described electric supply installation as claim 1-6.
8. portable terminal as claimed in claim 7 is characterized in that, also comprises:
Display unit is used to the battery electric quantity situation that shows that described second access unit is inserted.
9. the startup method of a portable terminal is characterized in that, comprising:
First access unit that is identified for inserting lithium battery does not insert lithium battery, and after second access unit that is used to insert the battery of other type inserts the battery of other type, determine the magnitude of voltage of second access unit output according to the digital signal of AD conversion unit output, described AD conversion unit is used for the magnitude of voltage output digital signal corresponding according to described second access unit output, and described first access unit is connected the functional unit of required power supply in the described portable terminal with described second access unit;
After the magnitude of voltage of determining described second access unit output reaches set point, control described functional unit and start.
10. method as claimed in claim 9 is characterized in that, also comprises:
Behind the described functional unit of start battery of other type that inserts by described second access unit, according to the magnitude of voltage of described second access unit output, evaluate the battery electric quantity situation that described second access unit is inserted, and output.
11. as claim 9 or 10 described methods, it is characterized in that, also comprise:
Behind the described functional unit of start battery of other type that inserts by described second access unit, when the charhing unit that is used to charge started, using charhing unit was described functional unit power supply, and cut off the supply access and the charging path of second access unit.
12. as claim 9 or 10 described methods, it is characterized in that, also comprise:
Behind the described functional unit of start battery of other type that inserts by described second access unit, control described functional unit and enter battery saving mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011100665266A CN102163869A (en) | 2011-03-18 | 2011-03-18 | Power supply device, mobile terminal and start method of mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100665266A CN102163869A (en) | 2011-03-18 | 2011-03-18 | Power supply device, mobile terminal and start method of mobile terminal |
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| CN2011100665266A Pending CN102163869A (en) | 2011-03-18 | 2011-03-18 | Power supply device, mobile terminal and start method of mobile terminal |
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| CN102590609A (en) * | 2012-02-16 | 2012-07-18 | 惠州Tcl移动通信有限公司 | Mobile terminal and method for measuring power consumption of mobile terminal |
| CN106972616A (en) * | 2017-03-08 | 2017-07-21 | 深圳鼎智通讯股份有限公司 | The system and method that supplies power with double circuit of card swiping terminal supply pin in intelligent POS |
| CN107507373A (en) * | 2017-08-28 | 2017-12-22 | 福建新大陆支付技术有限公司 | A kind of intelligent POS based on android system accelerates charging method |
| CN109119019A (en) * | 2018-06-07 | 2019-01-01 | 北京邮电大学 | Colorful flash of light bar system based on Arduino platform |
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| CN107507373A (en) * | 2017-08-28 | 2017-12-22 | 福建新大陆支付技术有限公司 | A kind of intelligent POS based on android system accelerates charging method |
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| CN109119019A (en) * | 2018-06-07 | 2019-01-01 | 北京邮电大学 | Colorful flash of light bar system based on Arduino platform |
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