CN101814757A - Method and system for supplying power to mobile terminal - Google Patents
Method and system for supplying power to mobile terminal Download PDFInfo
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- CN101814757A CN101814757A CN 201010150403 CN201010150403A CN101814757A CN 101814757 A CN101814757 A CN 101814757A CN 201010150403 CN201010150403 CN 201010150403 CN 201010150403 A CN201010150403 A CN 201010150403A CN 101814757 A CN101814757 A CN 101814757A
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Abstract
The invention discloses a method and a system for supplying power to a mobile terminal. In the method, two power supply channels 1 and 2 of a programmable power supply are used for supplying power supply voltages needed by a battery terminal and a charging terminal of the mobile terminal when the mobile terminal works normally. The method particularly comprises the following steps that: the character that the charging terminal of the mobile terminal also generates startup current when the loaded power supply voltage is insufficient is utilized, and before electricity is supplied to the mobile terminal formally, whether a power supply terminal of the mobile terminal is correctly connected is judged by outputting a test voltage in advance and detecting the startup current, so the power supply safety of the mobile terminal is ensured, the problem that the mobile terminal is damaged due to reverse connection of the power supply terminal is avoided, furthermore, the generation of fault machines is reduced, the production cost is reduced, and the first pass yield rate of production is improved. The method for power supply has a simple design, can provide conveniences for a line operator to make judgments, and is suitable for popularization and application in related mobile products such as mobile phones, MP4 and the like.
Description
Technical field
The invention belongs to method of supplying power to and electric power system technical field, specifically, relate to a kind ofly guarantee method of supplying power to that the power supply and the binding post of portable terminal can correctly be connected and based on the designed electric power system of this method of supplying power to.
Background technology
For present portable terminals such as mobile phone, all comprise two power supply terminal: DCIN and VBT usually.Wherein, DCIN is meant the charging terminal of mobile phone, and when plant produced, if utilize power supply directly to be the power supply of DCIN terminal, mobile phone just can Auto Power On; VBT is meant the battery terminal of mobile phone, if utilize power supply directly to be the power supply of VBT terminal, mobile phone can not started shooting.Generally speaking, the power supply voltage range of DCIN terminal is at [4.2V, 5.0V]; The power supply voltage range of VBT terminal is at [3.6V, 4.2V].
When mobile phone was produced, a lot of stations all needed DCIN terminal and VBT terminal to power simultaneously.And the DCIN supply power voltage of a lot of types requires to be higher than 4.6V; The VBT supply power voltage requires to be lower than 4.2V.When plant produced, because a variety of causes adds anti-situation through the supply power voltage that DCIN terminal and VBT terminal appear in regular meeting, the supply power voltage that is about to the DCIN terminal has been loaded on the VBT terminal, thereby causes the damage of cell phone mainboard.
In order to reduce the generation of fault mobile phone, reduce production costs, existing solution all is to adopt the control mode of behavior adjustment management, promptly connects anti-situation and occurs by strengthen that the supervision and management of production line is avoided occurring DCIN terminal and VBT terminal as far as possible, to solve operational error problem.But the enforceability of this behavior adjustment management control mode is obviously poor, can't fundamentally guarantee the accurate of wiring.
Based on this, how to design a kind of test request that is suitable for handset production line, avoid because wiring detection method and the safe power supply system that DCIN terminal and the reversal connection of VBT terminal cause the cell phone mainboard overvoltage to damage is the subject matter that present portable terminal manufacturing field need solve.
Summary of the invention
The object of the present invention is to provide a kind of method of supplying power to of portable terminal, be loaded into the impaired situation of portable terminal that is caused on the battery terminal mistakenly with the supply power voltage on the charging terminal of avoiding occurring being loaded into portable terminal.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of method of supplying power to of portable terminal provides its battery terminal and the required supply power voltage of charging terminal when utilizing the two-way power channel 1,2 of programmable power supply to come normally to move for portable terminal; Its concrete grammar is: after on battery terminal that power channel 1,2 is connected to portable terminal and the charging terminal, at first enter the wiring detection-phase, the power channel 1 output 0V voltage of programmable power supply promptly is set, power channel 2 output test voltage V
TWherein, test voltage V
TAmplitude between the maximum supply power voltage value that drives critical voltage value that portable terminal partly starts shooting and battery terminal permission; Then, whether portable terminal on have starup current produce, if having, judge that then wiring is correct if detecting, enter the formal power supply stage, i.e. the supply power voltage of setting by power channel 1,2 outputs of programmable power supply; Otherwise, judge the power supply terminal reversal connection, programmable power supply stops to be the portable terminal power supply.
Further, at described wiring detection-phase, can judge whether that starup current produces by the electric current show value that detects power channel 2 on the programmable power supply.
Further again, at described wiring detection-phase, when judging the power supply terminal reversal connection, the output alarm prompting is made personnel's wiring error to remind the line gymnastics.
Further, described test voltage V
TAmplitude between [3.8V, 4.2V].
Preferably, described test voltage V
TAmplitude preferably between [4V, 4.2V].
Based on the method for supplying power to of above-mentioned portable terminal, the present invention provides a kind of electric power system based on described method of supplying power to design again, comprises computer and connected programmable power supply; The two-way power channel 1,2 of described computer control programmable power supply provides its battery terminal and the required supply power voltage of charging terminal when coming normally to move for portable terminal; After on battery terminal that described power channel 1,2 is connected to portable terminal and the charging terminal, computer at first is provided with the power channel 1 output 0V voltage of programmable power supply, power channel 2 output test voltage V
TWherein, test voltage V
TAmplitude between the maximum supply power voltage value that drives critical voltage value that portable terminal partly starts shooting and battery terminal permission; Then, the current value that computer feeds back by the power channel 2 that reads programmable power supply judges whether have starup current to produce on the portable terminal, if having, to judge that then wiring is correct, the supply power voltage that power channel 1,2 outputs of computer installation programmable power supply are set; Otherwise, judge the power supply terminal reversal connection, the control programmable power supply stops output voltage.
Further, described computer is when judging the power supply terminal reversal connection, and output alarm is pointed out.
Further again, described computer is after judging that wiring is correct, and the supply power voltage amplitude of power channel 1 output of control programmable power supply is between [4V, 4.2V]; The supply power voltage amplitude of power channel 2 outputs is between [4.8V, 5V].
Compared with prior art, advantage of the present invention and good effect are: the characteristic that method of supplying power to of the present invention utilizes the charging terminal of portable terminal also to have starup current to produce when the supply power voltage that loads is not enough, before formally for the portable terminal power supply, judge by prior detection starup current whether the power supply terminal of portable terminal connects correctly, thereby guaranteed the power supply safety of portable terminal, avoided because the impaired problem of portable terminal that the power supply terminal reversal connection causes, and then reduced the generation of fault machine, reduce production cost, improved the first-pass yield of producing.This method of supplying power to simplicity of design can make things convenient for the line gymnastics to do personnel and judge, is adapted at applying in the relevant mobile products such as mobile phone, MP4.
After reading the detailed description of embodiment of the present invention in conjunction with the accompanying drawings, other characteristics of the present invention and advantage will become clearer.
Description of drawings
Fig. 1 is the integrated stand composition of a kind of embodiment of the electric power system of portable terminal proposed by the invention;
Fig. 2 is the operational flowchart of a kind of embodiment of portable terminal method of supplying power to proposed by the invention.
Embodiment
Below with mobile phone as the power supply object, in conjunction with the accompanying drawings the specific embodiment of the present invention is described in detail.
Embodiment one, referring to shown in Figure 1, the electric power system of present embodiment is made up of computer and programmable power supply, utilize the two-way power channel of programmable power supply, such as power channel 1, power channel 2, exporting battery of mobile phone terminal VBT and charging terminal DCIN required supply power voltage when mobile phone normally moves under the control action of computer respectively, such as for present most mobile phones, generally need provide [4.8V to the charging terminal DCIN of mobile phone, 5V] direct voltage, the supply power voltage of preferred 4.8V is started shooting fully with the circuit system of control mobile phone; To the direct voltage of the battery terminal VBT of mobile phone output [4V, 4.2V], the supply power voltage of preferred 4V is to be used for system testing.Because the maximum supply power voltage that battery terminal VBT is allowed is 4.2V, and the supply power voltage that is applied to charging terminal DCIN is often all at 4.8V even higher, therefore, when a lot of stations need to be charging terminal DCIN and battery terminal VBT power supply simultaneously, the carelessness in case personnel are done in the line gymnastics, to be used to cell-phone charging terminal DCIN to provide on the battery terminal VBT that the power channel 2 of supply power voltage has been connected to mobile phone mistakenly, that will certainly cause damage to cell phone mainboard.
In order to reduce the generation probability of this fault mobile phone that causes owing to the human operational error, present embodiment had increased the operating process that a step wiring detects before original power supply flow process in the test program of computer.Be that online gymnastics is done personnel with on the power channel 1 of programmable power supply, the battery terminal VBT and charging terminal DCIN that power channel 2 is connected to mobile phone, and behind the startup test program, computer at first is provided with the power channel 1 output 0V voltage of programmable power supply, power channel 2 output test voltage V
TIn order also to protect cell phone mainboard effectively when the power supply terminal reversal connection takes place, and can play simultaneously and detect the whether effect of reversal connection of power supply terminal, present embodiment is with described test voltage V
TAmplitude be arranged between driving between the maximum supply power voltage value that critical voltage value that cell phone system partly starts shooting and battery terminal VBT allowed.Such as: for the power supply voltage range of charging terminal DCIN at the power supply voltage range of [4.2V, 5.0V], VBT terminal mobile phone at [3.6V, 4.2V], can be with test voltage V
TAmplitude be arranged between [3.8V, 4.2V].For normal mobile phone, when being applied with the supply power voltage of 3.8V on its charging terminal DCIN, the circuit system that has half operation that powers on, starup current can reach more than the 40mA, even for the fault mobile phone, also often can produce the starup current of 20mA.In case be lower than 3.8V, common cell phone system does not generally have starup current and produces.Therefore, by detecting whether starup current is arranged, can judge power supply terminal and whether connect instead.Specifically, if starup current is arranged, represent that then the wiring of power supply terminal is correct, the power channel 2 of output 3.8V test voltage is connected on the charging terminal DCIN of mobile phone exactly; If there is not starup current, then the power channel 2 of expression output 3.8V test voltage has been connected on the battery terminal VBT of mobile phone, power supply terminal wiring error, the prompting of computer output alarm, remind the line gymnastics to change the power supply wiring of battery terminal VBT and charging terminal DCIN, and the two-way power channel 1,2 of control programmable power supply stop to power to mobile phone as personnel.Because the test voltage of 3.8V does not exceed the power supply voltage range that the battery terminal VBT of mobile phone is allowed, and therefore, even the power supply terminal reversal connection also can not damage the mainboard of mobile phone, thereby has guaranteed the power supply safety of mobile phone products.
For fear of the situation of some fault machine appearance erroneous judgement when the wiring of carrying out above-mentioned power supply terminal is judged, preferably with described test voltage V
TAmplitude be arranged between [4V, 4.2V], when terminal connections is correct, can both have starup current to produce to guarantee all mobile phones.
In the present embodiment, in order to realize whether computer has the automatic identification of starup current to mobile phone, the current sense function that adopts programmable power supply self to be possessed, the current value of the power channel 2 that programmable power supply is collected feeds back to computer, to realize the automatic detection of computer to starup current.
After computer was being judged on the battery terminal VBT of mobile phone and the power channel 1,2 that charging terminal DCIN has been connected to programmable power supply exactly, computer showed that wiring is correct, and changes formal power supply flow process automatically over to.Be the required supply power voltage of power channel 1 output battery of mobile phone terminal VBT that computer is provided with programmable power supply on the one hand, this supply power voltage can be between [4V, 4.2V] value, preferably write the supply power voltage of 4V to the power channel 1 of programmable power supply; On the other hand, the required supply power voltage of power channel 2 output cell-phone charging terminal DCIN of programmable power supply is set, this supply power voltage can be at [4.8V, 5V] between value, preferably write the supply power voltage of 4.8V to the power channel 2 of programmable power supply, with the operation of starting shooting fully of control cell phone system, enter the system testing stage.
Idiographic flow below in conjunction with the portable terminal safe power supply method of 2 pairs of present embodiments of accompanying drawing is described in detail, this program with computer that programmable power supply is connected in move, may further comprise the steps:
S201, test program begin;
In the present embodiment, the online gymnastics of described test program is done on the battery terminal VBT and charging terminal DCIN that personnel are connected to mobile phone with the power channel 1 and the power channel 2 of programmable power supply, and enters after clicking start button on the computer screen;
S202, write voltage setting value to programmable power supply, the voltage setting value that is about to the power channel 1 of programmable power supply is set to 0V, and the voltage setting value of power channel 2 is set to test voltage V
T
In the present embodiment, described test voltage V
TAmplitude can be arranged between driving between the maximum supply power voltage value that critical voltage value that cell phone system partly starts shooting and battery terminal VBT allowed, such as V
T=4.2V;
S203, read the starup current value of programmable power supply feedback, i.e. the current sampling data of the power channel 2 of programmable power supply;
S204, whether judge the starup current value greater than 0mA, if judge that then the power supply terminal wiring is correct, execution in step S208; Otherwise, judge power supply terminal wiring error, execution in step S205;
In the present embodiment, because present most mobile phones apply [3.8V on its charging terminal DCIN, 4.2V] between supply power voltage the time, its starup current generally all drops in the scope of [20mA, 200mA], therefore, in this step, can specific design become: judge that whether the starup current value is at [20mA, 200mA] scope in, if, execution in step S208 then; Otherwise, execution in step S205;
The alarm of S205, the reversal connection of output power supply terminal;
In the present embodiment, can adopt the prompting mode of display alarm captions on computer screen, also can adopt the prompting mode of playing alarm voice;
The voltage setting value of the two-way power channel 1,2 of S206, programmable power supply is set to 0V, promptly controls programmable power supply and stops to power to mobile phone;
S207, withdraw from test program;
In the present embodiment, in order to ensure the power supply safety of mobile phone, preferred online gymnastics do personnel with the wiring of the power supply terminal of mobile phone transposing after, carry out one time the wiring testing process again again, guarantee wiring accurate after line output supply power voltage again;
S208, show that wiring is correct;
S209, write the battery terminal VBT and the required supply power voltage of charging terminal DCIN of mobile phone to programmable power supply; Such as the voltage setting value that power channel 1 is set is 4V, and the voltage setting value of power channel 2 is 4.8V;
S210, enter the testing process of cell phone system.
The anti-reverse method of power supply terminal of the present invention is simply effective, can make things convenient for the line gymnastics to carry out the accurate judgement that wiring is operated as personnel, and this mentality of designing can apply in the Design of Test System of communication products relevant with mobile phone or portable terminals such as MP3, MP4.
Certainly; the above only is a kind of preferred implementation of the present invention; should be noted that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. the method for supplying power to of a portable terminal provides its battery terminal and the required supply power voltage of charging terminal when utilizing the two-way power channel 1,2 of programmable power supply to come normally to move for portable terminal; It is characterized in that: after on battery terminal that power channel 1,2 is connected to portable terminal and the charging terminal, at first enter the wiring detection-phase, the power channel 1 output 0V voltage of programmable power supply promptly is set, power channel 2 output test voltage V
TWherein, test voltage V
TAmplitude between the maximum supply power voltage value that drives critical voltage value that portable terminal partly starts shooting and battery terminal permission; Then, whether portable terminal on have starup current produce, if having, judge that then wiring is correct if detecting, enter the formal power supply stage, i.e. the supply power voltage of setting by power channel 1,2 outputs of programmable power supply; Otherwise, judge the power supply terminal reversal connection, programmable power supply stops to be the portable terminal power supply.
2. the method for supplying power to of portable terminal according to claim 1 is characterized in that: at described wiring detection-phase, judged whether that by the electric current show value that detects power channel 2 on the programmable power supply starup current produces.
3. the method for supplying power to of portable terminal according to claim 1 is characterized in that: at described wiring detection-phase, and when judging the power supply terminal reversal connection, the output alarm prompting.
4. according to the method for supplying power to of each described portable terminal in the claim 1 to 3, it is characterized in that: described test voltage V
TAmplitude between [3.8V, 4.2V].
5. according to the method for supplying power to of each described portable terminal in the claim 1 to 3, it is characterized in that: described test voltage V
TAmplitude between [4V, 4.2V].
6. the electric power system of a portable terminal is characterized in that: comprise computer and connected programmable power supply; The two-way power channel 1,2 of described computer control programmable power supply provides its battery terminal and the required supply power voltage of charging terminal when coming normally to move for portable terminal; After on battery terminal that described power channel 1,2 is connected to portable terminal and the charging terminal, computer at first is provided with the power channel 1 output 0V voltage of programmable power supply, power channel 2 output test voltage V
TWherein, test voltage V
TAmplitude between the maximum supply power voltage value that drives critical voltage value that portable terminal partly starts shooting and battery terminal permission; Then, the current value that computer feeds back by the power channel 2 that reads programmable power supply judges whether have starup current to produce on the portable terminal, if having, to judge that then wiring is correct, the supply power voltage that power channel 1,2 outputs of computer installation programmable power supply are set; Otherwise, judge the power supply terminal reversal connection, the control programmable power supply stops output voltage.
7. electric power system according to claim 6 is characterized in that: described computer is when judging the power supply terminal reversal connection, and output alarm is pointed out.
8. electric power system according to claim 6 is characterized in that: described test voltage V
TAmplitude between [3.8V, 4.2V].
9. electric power system according to claim 6 is characterized in that: described test voltage V
TAmplitude between [4V, 4.2V].
10. according to each described electric power system in the claim 6 to 9, it is characterized in that: described computer is after judging that wiring is correct, and the supply power voltage amplitude of power channel 1 output of control programmable power supply is between [4V, 4.2V]; The supply power voltage amplitude of power channel 2 outputs is between [4.8V, 5V].
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| CN2010101504036A CN101814757B (en) | 2010-04-14 | 2010-04-14 | Method and system for supplying power to mobile terminal |
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| CN2010101504036A CN101814757B (en) | 2010-04-14 | 2010-04-14 | Method and system for supplying power to mobile terminal |
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| CN104753128A (en) * | 2013-12-31 | 2015-07-01 | 南京德朔实业有限公司 | Charging assembly and electric tool |
| CN105744085A (en) * | 2014-12-25 | 2016-07-06 | 佳能株式会社 | Communication apparatus and control method for the same |
| CN106291009A (en) * | 2016-08-11 | 2017-01-04 | 青岛海信移动通信技术股份有限公司 | Binary channel electric supply installation and electronic product production test equipment |
| CN106291060A (en) * | 2016-08-29 | 2017-01-04 | 深圳天珑无线科技有限公司 | A kind of current test of mobile telephone system and current test of mobile telephone method |
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| CN103136064A (en) * | 2011-11-30 | 2013-06-05 | 英业达股份有限公司 | Boot-up error processing method |
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| US10032557B1 (en) | 2014-05-29 | 2018-07-24 | Apple Inc. | Tuning of primary and secondary resonant frequency for improved efficiency of inductive power transfer |
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| US10110051B2 (en) | 2014-06-13 | 2018-10-23 | Apple Inc. | Detection of coil coupling in an inductive charging system |
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| US10014733B2 (en) | 2014-08-28 | 2018-07-03 | Apple Inc. | Temperature management in a wireless energy transfer system |
| US10879745B2 (en) | 2014-08-28 | 2020-12-29 | Apple Inc. | Temperature management in a wireless energy transfer system |
| US10193372B2 (en) | 2014-09-02 | 2019-01-29 | Apple Inc. | Operating an inductive energy transfer system |
| CN105744085A (en) * | 2014-12-25 | 2016-07-06 | 佳能株式会社 | Communication apparatus and control method for the same |
| CN105744085B (en) * | 2014-12-25 | 2019-04-19 | 佳能株式会社 | Communication equipment and its control method |
| US10666084B2 (en) | 2015-07-10 | 2020-05-26 | Apple Inc. | Detection and notification of an unpowered releasable charging device |
| CN106291009A (en) * | 2016-08-11 | 2017-01-04 | 青岛海信移动通信技术股份有限公司 | Binary channel electric supply installation and electronic product production test equipment |
| CN106291009B (en) * | 2016-08-11 | 2019-04-05 | 青岛海信移动通信技术股份有限公司 | Binary channel power supply unit and electronic product production test equipment |
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