CN101814757B - 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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- CN101814757B CN101814757B CN2010101504036A CN201010150403A CN101814757B CN 101814757 B CN101814757 B CN 101814757B CN 2010101504036 A CN2010101504036 A CN 2010101504036A CN 201010150403 A CN201010150403 A CN 201010150403A CN 101814757 B CN101814757 B CN 101814757B
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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 electric power system that this method of supplying power to designed.
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 supply 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 comes to avoid occurring the DCIN terminal as far as possible and connects anti-situation appearance with the VBT terminal through strengthening supervision and management to production line, 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 by error 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 adopts following technical scheme to be achieved:
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 get into 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, get into the formal power supply stage, the supply power voltage of promptly setting through 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 through 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, said test voltage V
TAmplitude between [3.8V, 4.2V].
Preferably, said 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 said method of supplying power to design again, comprises computer and connected programmable power supply; The two-way power channel 1,2 of said 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 said 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 through 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, said computer is when judging the power supply terminal reversal connection, and output alarm is pointed out.
Further again, said 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 when the supply power voltage that loads is not enough, also to have starup current to produce; Before formally for the portable terminal power supply, judge through 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, and reduced 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, describe in detail in conjunction with the accompanying drawing specific embodiments of the invention.
Embodiment one, and 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 [4.8V be provided to the charging terminal DCIN of mobile phone; 5V] direct voltage, the supply power voltage of preferred 4.8V is started shooting with the circuit system of control mobile phone fully; 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 by error provides the power channel 2 of supply power voltage to be connected on the battery terminal VBT of mobile phone, and 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 when the power supply terminal reversal connection takes place, also to protect cell phone mainboard effectively, and can play simultaneously and detect the whether effect of reversal connection of power supply terminal, present embodiment is with said 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, have the operation that powers on of half the circuit system, 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, through 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; Computer output alarm prompting reminds the line gymnastics to change the power supply wiring of battery terminal VBT and charging terminal DCIN as personnel, and the two-way power channel 1,2 of controlling programmable power supply stops to supply power to mobile phone.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 can not damage the mainboard of mobile phone yet, 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 said 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 between [4.8V, 5V] 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, entering 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 set forth 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 said test program is done personnel power channel of programmable power supply 1 and power channel 2 is connected on the battery terminal VBT and charging terminal DCIN of mobile phone, and gets into behind the start button on the click 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, said 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, since present most mobile phones when the supply power voltage that applies on its charging terminal DCIN between [3.8V, 4.2V]; Its starup current generally all drops in the scope of [20mA, 200mA], therefore; In this step, can specifically be designed to: 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 be employed in the prompting mode of display alarm captions on the 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 supply 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;
The testing process of S210, entering 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 of wiring operation as personnel, and this mentality of designing can apply in the Design of Test System of portable terminals such as the communication products relevant with mobile phone or MP3, MP4.
Certainly; The above only is a kind of preferred implementation of the present invention; Should be pointed out 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 improvement and retouching, these improvement and retouching also should be regarded 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 get into 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, get into the formal power supply stage, the supply power voltage of promptly setting through 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 through the current 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: said 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: said 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 said 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 said 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 through 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: said 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: said test voltage V
TAmplitude between [3.8V, 4.2V].
9. electric power system according to claim 6 is characterized in that: said 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: said 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].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101504036A CN101814757B (en) | 2010-04-14 | 2010-04-14 | Method and system for supplying power to mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
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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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| CN101814757A CN101814757A (en) | 2010-08-25 |
| CN101814757B true CN101814757B (en) | 2012-03-07 |
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| CN2010101504036A Expired - Fee Related CN101814757B (en) | 2010-04-14 | 2010-04-14 | Method and system for supplying power to mobile terminal |
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| CN102164196A (en) * | 2011-04-19 | 2011-08-24 | 广东欧珀移动通信有限公司 | Automatic mobile phone current testing method |
| CN103136064B (en) * | 2011-11-30 | 2015-09-30 | 英业达股份有限公司 | Boot Error Handling Method |
| CN104753127B (en) * | 2013-12-31 | 2017-12-29 | 南京德朔实业有限公司 | Battery bag, charging combination, electric tool and wire break detection method |
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| WO2015127127A1 (en) | 2014-02-23 | 2015-08-27 | Apple Inc. | Adjusting filter in a coupled coil system |
| US10032557B1 (en) | 2014-05-29 | 2018-07-24 | Apple Inc. | Tuning of primary and secondary resonant frequency for improved efficiency of inductive power transfer |
| US9537353B1 (en) | 2014-06-03 | 2017-01-03 | Apple Inc. | Methods for detecting mated coils |
| US9685814B1 (en) | 2014-06-13 | 2017-06-20 | Apple Inc. | Detection of coil coupling in an inductive charging system |
| US9813041B1 (en) | 2014-07-31 | 2017-11-07 | Apple Inc. | Automatic boost control for resonant coupled coils |
| US10014733B2 (en) | 2014-08-28 | 2018-07-03 | 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 |
| JP6541346B2 (en) * | 2014-12-25 | 2019-07-10 | キヤノン株式会社 | Communication device and control method of the device |
| US10666084B2 (en) | 2015-07-10 | 2020-05-26 | Apple Inc. | Detection and notification of an unpowered releasable charging device |
| 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 |
| CN106291060B (en) * | 2016-08-29 | 2023-12-12 | 唯科终端技术(东莞)有限公司 | Mobile phone current testing system and mobile phone current testing method |
| US10644531B1 (en) | 2016-09-22 | 2020-05-05 | Apple Inc. | Adaptable power rectifier for wireless charger system |
| US10523063B2 (en) | 2017-04-07 | 2019-12-31 | Apple Inc. | Common mode noise compensation in wireless power systems |
| US10389274B2 (en) | 2017-04-07 | 2019-08-20 | Apple Inc. | Boosted output inverter for electronic devices |
| CN109683007B (en) * | 2018-11-29 | 2022-04-19 | Oppo（重庆）智能科技有限公司 | Current testing mold, system and method |
| CN112202952B (en) * | 2020-10-22 | 2022-04-22 | Tcl通讯（宁波）有限公司 | Mobile terminal testing method and device, storage medium and mobile terminal |
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| CN1393970A (en) * | 2001-06-28 | 2003-01-29 | 英业达股份有限公司 | Battery Charging Protection Circuit |
| CN100493226C (en) * | 2007-01-05 | 2009-05-27 | 华为技术有限公司 | Test system for mobile terminal power consumption |
| CN100490553C (en) * | 2007-03-22 | 2009-05-20 | 华为技术有限公司 | Mobile terminal standing detection method, circuit and apparatus thereof |
| CN101282557A (en) * | 2008-05-23 | 2008-10-08 | 嘉兴闻泰通讯科技有限公司 | PHS voltage calibration circuit and calibration method |
| CN101478171B (en) * | 2009-01-22 | 2010-12-29 | 珠海全志科技有限公司 | Power management system |
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