CN107918076B - Power adapter detection method and power adapter detection device - Google Patents
Power adapter detection method and power adapter detection device Download PDFInfo
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- CN107918076B CN107918076B CN201711327749.7A CN201711327749A CN107918076B CN 107918076 B CN107918076 B CN 107918076B CN 201711327749 A CN201711327749 A CN 201711327749A CN 107918076 B CN107918076 B CN 107918076B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
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Abstract
The invention discloses a power adapter detection method and a power adapter detection device, wherein the power adapter detection method comprises the following steps: acquiring a first voltage value of a power adapter, wherein the first voltage value is a voltage value of the power adapter during no-load; gradually increasing the load resistance value of the power adapter, and detecting a difference value between the first voltage value and a second voltage value in real time, wherein the second voltage value is the voltage value of the power adapter obtained by real-time detection in the process of increasing the load resistance value of the power adapter; and when detecting that the difference value between the first voltage value and the second voltage value is not greater than a preset voltage threshold value, recording the current load current value of the power adapter. The technical scheme provided by the invention can help the user to choose a proper power adapter, and the rights of consumers of the user are guaranteed.
Description
The present application is a divisional application entitled "method and apparatus for detecting power adapter" on application date 2015 of China, 6/12/application number 201510325205.1
Technical Field
The invention relates to the technical field of power supplies, in particular to a power adapter detection method and a power adapter detection device.
Background
The popularization of intelligent machines and the open development of android systems lead to rapid development of mobile phones, so that not only are the emulational machines endlessly developed, but also accessories of the emulational are ubiquitous, and the accessories which are usually wanted to buy are expensive and do not buy qualified products, which is very headache.
In practical work, the current output by the power adapter is determined according to the load (namely the mobile phone) connected with the adapter, as long as the mobile phone needs more current within the range of force, the power adapter provides more current, and if the current needed by the mobile phone exceeds the upper limit of the current capable of being provided by the power adapter, the power adapter always outputs the maximum current. The original power adapter is internally provided with the transformer, so that the power adapter can be automatically adjusted even under the unstable voltage condition, and is safer, and the original charger, especially the cheap emulational power adapter, lacks a protection circuit, cannot ensure the stability of current during charging, is easy to burn out the battery, shortens the service life of the battery, and even has the danger of explosion.
At present, no related technical scheme can help a user to choose a power adapter, so that the rights of consumers of the user are difficult to guarantee.
Disclosure of Invention
The invention provides a power adapter detection method and a power adapter detection device, which are used for helping a user to choose a proper power adapter and ensuring the rights of consumers of the user.
The first aspect of the present invention provides a power adapter detection method, including:
acquiring a first voltage value of a power adapter, wherein the first voltage value is a voltage value of the power adapter during no-load;
gradually increasing the load resistance value of the power adapter, and detecting a difference value between the first voltage value and a second voltage value in real time, wherein the second voltage value is the voltage value of the power adapter obtained by real-time detection in the process of increasing the load resistance value of the power adapter;
and when detecting that the difference value between the first voltage value and the second voltage value is not greater than a preset voltage threshold value, recording the current load current value of the power adapter.
The second aspect of the present invention provides a power adapter detection apparatus, including:
the device comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring a first voltage value of a power adapter, and the first voltage value is a voltage value of the power adapter in no-load;
the load adjustment voltage detection unit is used for gradually increasing the load resistance value of the power adapter and detecting the difference value between the first voltage value and a second voltage value in real time, wherein the second voltage value is the voltage value of the power adapter obtained by real-time detection in the process of increasing the load resistance value of the power adapter;
and the recording unit is used for recording the current load current value of the power adapter when the load adjustment voltage detection unit detects that the difference value between the first voltage value and the second voltage value is not greater than a preset voltage threshold value.
Therefore, in the implementation of the invention, the first voltage value when the power adapter is unloaded and the second voltage value when the power adapter is loaded are obtained, and the load current value of the power adapter is recorded when the difference value between the first voltage value and the second voltage value is not greater than the preset voltage threshold value.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic flow chart illustrating an embodiment of a power adapter detection method according to the present invention;
fig. 2 is a schematic structural diagram of an embodiment of a power adapter detection apparatus provided in the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a power adapter detection method, which comprises the following steps: acquiring a first voltage value of a power adapter, wherein the first voltage value is a voltage value of the power adapter during no-load; gradually increasing the load resistance value of the power adapter, and detecting a difference value between the first voltage value and a second voltage value in real time, wherein the second voltage value is the voltage value of the power adapter obtained by real-time detection in the process of increasing the load resistance value of the power adapter; and when detecting that the difference value between the first voltage value and the second voltage value is not greater than a preset voltage threshold value, recording the current load current value of the power adapter. The embodiment of the invention also provides a corresponding power adapter detection device, which is respectively described in detail below.
Referring to fig. 1, a method for detecting a power adapter according to an embodiment of the present invention is described below, where the method for detecting a power adapter according to the embodiment of the present invention includes:
101. acquiring a first voltage value of a power adapter;
the first voltage value is a voltage value of the power adapter in no-load.
Optionally, after the power adapter is connected to the terminal and the power adapter detection device is started, the power adapter detection device interrupts the charging operation of the power adapter on the terminal, that is, the terminal is controlled not to be charged temporarily, and then the power adapter detection device detects and obtains the current voltage value of the power adapter.
Of course, in the embodiment of the present invention, the power adapter detecting device may also obtain the voltage value of the power adapter when the power adapter is idle in other manners, for example, manually detect the voltage value of the power adapter when the power adapter is idle, and input the manually detected voltage value of the power adapter when the power adapter is idle to the power adapter detecting device, so that the power adapter detecting device obtains the voltage value of the power adapter when the power adapter is idle. In the embodiment of the invention, the concrete implementation mode of the power adapter detection device for acquiring the voltage value of the power adapter in no-load is not limited.
102. Gradually increasing the load resistance value of the power adapter, and detecting the difference value between the first voltage value and the second voltage value in real time;
the second voltage value is a voltage value of the power adapter detected in real time in a process of increasing a load resistance value of the power adapter.
In an embodiment of the present invention, the load resistance of the power adapter may be realized by a resistance of a built-in sliding rheostat, and in step 102, the power adapter detecting device loads a load resistance to the power adapter and detects a second voltage value (for convenience of description, the second voltage value of the power adapter is described as U below)2) While simultaneously comparing U2The first voltage value obtained in step 102 (for convenience of description, the first voltage value of the power adapter obtained in step 102 will be described as U below1) When U is formed1And U2Difference (for convenience of description, U will be described below)1And U2Is described as Δ U) is greater than a preset voltage threshold value, the load resistance value of the power adapter is gradually increased by adjusting the resistance value of the slide rheostat, and U is detected in real time2While simultaneously comparing U2And U1Until Δ U is not greater than the preset voltage threshold, step 103 is performed.
Optionally, the power adapter detection device loads a load resistance value of 5 ohms to the power adapter first, and then obtains U2And calculating delta U, starting from 5 ohms and gradually increasing the load resistance value of the power adapter by using 2.5 ohms as a step length if the delta U is larger than a preset voltage threshold, and acquiring U after the load resistance value of the power adapter is increased each time2And calculating Δ U, and executing step 103 until Δ U is not greater than the preset voltage threshold. Of course, in the embodiment of the present invention, the power source is adaptedThe load resistance value that the device detection apparatus loads for the power adapter for the first time is not limited to 5 ohms, and the load resistance value that is added for the power adapter each time is not limited to 2.5 ohms.
103. When the difference value between the first voltage value and the second voltage value is not larger than a preset voltage threshold value, recording the current load current value of the power adapter;
in the embodiment of the present invention, when it is detected that the difference between the first voltage value and the second voltage value is not greater than the preset voltage threshold, the power adapter detecting device records the current load current value of the power adapter, and the recorded load current value of the power adapter is the maximum load current value of the power adapter, and a user can obtain the maximum load current value of the power adapter by looking up the load current value recorded by the power adapter detecting device.
Further, in order to facilitate the user to view the result recorded by the power adapter detection apparatus, optionally, after step 103, the power adapter detection apparatus displays the recorded load current value of the power adapter when the difference between the first voltage value and the second voltage value is not greater than the preset voltage threshold.
Optionally, after step 103, the power adapter detecting device compares the load current value of the power adapter recorded in step 103 with a current value required by a battery of a terminal to which the power adapter is connected; and if the load current value of the power adapter recorded in the step 103 is smaller than the current value required by the battery of the terminal, outputting a reminding signal. Specifically, the reminding signal may be one or a combination of two or more of a voice signal, a vibration signal and a text signal.
Alternatively, the voltage threshold is set to any value in the interval of 0.1 volt to 0.5 volt (including 0.1 volt and 0.3 volt), and specifically, the voltage threshold is set to 0.2 volt. Of course, the voltage threshold may also be set according to actual requirements, so that when it is detected that the difference between the first voltage value and the second voltage value is not greater than the preset voltage threshold, the recorded load current value of the power adapter is the maximum load current value of the power adapter.
It should be noted that, the power adapter detection apparatus in the embodiment of the present invention is integrated in a mobile phone, a tablet computer, a router, or another terminal that needs to be charged through a power adapter, and is not limited herein.
The performance of the power adapter is mainly embodied in a load, and the larger the load is, the smaller the internal resistance is, the better the performance of the power adapter is, therefore, in the embodiment of the invention, by acquiring a first voltage value when the power adapter is in no-load and a second voltage value when the power adapter is in load, and when detecting that the difference value between the first voltage value and the second voltage value is not greater than a preset voltage threshold value, the load current value of the power adapter is recorded.
Referring to fig. 2, a power adapter detection apparatus 200 according to an embodiment of the present invention includes:
an obtaining unit 201, configured to obtain a first voltage value of a power adapter, where the first voltage value is a voltage value of the power adapter when the power adapter is idle;
a load adjustment voltage detection unit 202, configured to gradually increase a load resistance value of the power adapter, and detect a difference between the first voltage value and a second voltage value in real time, where the second voltage value is a voltage value of the power adapter obtained through real-time detection in a process of increasing the load resistance value of the power adapter;
the recording unit 203 is configured to record a current load current value of the power adapter when the load adjustment voltage detection unit 202 detects that a difference between the first voltage value and the second voltage value is not greater than a preset voltage threshold.
Optionally, the power adapter detection apparatus in the embodiment of the present invention further includes: and the display unit is used for displaying the current load current value of the power adapter.
Optionally, the load adjustment voltage detection unit 202 is specifically configured to: and loading a load resistance value of 5 ohms for the power adapter, and gradually increasing the load resistance value of the power adapter by taking 2.5 ohms as a step from 5 ohms.
Optionally, the power adapter detection apparatus in the embodiment of the present invention further includes: the comparison unit is used for comparing the current load current value of the power adapter with the current value required by the battery of the terminal; and the output unit is used for outputting a reminding signal when the comparison unit compares that the current load current value of the power adapter is smaller than the current value required by the battery of the terminal.
Optionally, the obtaining unit 201 includes: the system comprises an interruption detection unit, a charging unit and a charging unit, wherein the interruption detection unit is used for interrupting the charging operation of a power adapter to a terminal, and the terminal is accessed by the power adapter; and the detection acquisition unit is used for detecting the current voltage value of the power adapter and taking the voltage value as the first voltage value.
It should be noted that, the power adapter detection apparatus in the embodiment of the present invention is integrated in a mobile phone, a tablet computer, a router, or another terminal that needs to be charged through a power adapter, and is not limited herein.
It should be understood that the power adapter detecting device in the embodiment of the present invention may be the power adapter detecting device mentioned in the above method embodiment, and may be used to implement all technical solutions in the above method embodiment, and the functions of each functional module may be specifically implemented according to the method in the above method embodiment, and the specific implementation process may refer to the relevant description in the above embodiment, and is not described herein again.
The performance of the power adapter is mainly embodied in a load, and the larger the load is, the smaller the internal resistance is, the better the performance of the power adapter is, therefore, in the embodiment of the invention, by acquiring a first voltage value when the power adapter is in no-load and a second voltage value when the power adapter is in load, and when detecting that the difference value between the first voltage value and the second voltage value is not greater than a preset voltage threshold value, the load current value of the power adapter is recorded.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the above-described division of units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It should be noted that, for the sake of simplicity, the above-mentioned method embodiments are described as a series of acts or combinations, but those skilled in the art should understand that the present invention is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no acts or modules are necessarily required of the invention.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In view of the above description of the power adapter detection method and the power adapter detection apparatus provided by the present invention, those skilled in the art will recognize that there are variations in the embodiments and applications of the power adapter detection method and apparatus provided by the present invention.
Claims (6)
1. A method for detecting a power adapter, comprising:
connecting the power adapter into the mobile terminal and starting a power adapter detection device, wherein the power adapter detection device is integrated in the mobile terminal;
acquiring the maximum load current value of the power adapter;
comparing the maximum load current value with a current value required by a battery of the mobile terminal;
if the maximum load current value is smaller than the current value required by the battery of the mobile terminal, outputting a reminding signal;
wherein the obtaining of the maximum load current value of the power adapter comprises:
acquiring a first voltage value of the power adapter, wherein the first voltage value is a voltage value of the power adapter during no-load;
gradually increasing the load resistance value of the power adapter, and detecting a difference value between the first voltage value and a second voltage value in real time, wherein the second voltage value is the voltage value of the power adapter obtained by real-time detection in the process of increasing the load resistance value of the power adapter;
when the difference value between the first voltage value and the second voltage value is not larger than a preset voltage threshold value, recording the current load current value of the power adapter, wherein the current load current value is the maximum load current value of the power adapter.
2. The method of claim 1, further comprising, prior to said obtaining a maximum load current value for said power adapter:
the power adapter detection device interrupts the charging operation of the power adapter on the mobile terminal;
the step-by-step increase of the load resistance value of the power adapter specifically includes:
and loading a load resistance value of 5 ohms to the power adapter through the slide rheostat, and gradually increasing the load resistance value of the power adapter by taking 2.5 ohms as step length from 5 ohms.
3. The method of claim 2, further comprising:
and displaying the maximum load current value of the power adapter.
4. A power adapter detection apparatus, integrated in a mobile terminal, comprising:
the acquisition unit is used for acquiring a first voltage value of the power adapter, wherein the first voltage value is a voltage value of the power adapter during no-load;
the load adjustment voltage detection unit is used for gradually increasing the load resistance value of the power adapter and detecting the difference value between the first voltage value and a second voltage value in real time, wherein the second voltage value is the voltage value of the power adapter obtained by real-time detection in the process of increasing the load resistance value of the power adapter;
the recording unit is used for recording the current load current value of the power adapter when the load adjustment voltage detection unit detects that the difference value between the first voltage value and the second voltage value is not greater than a preset voltage threshold value, wherein the current load current value is the maximum load current value of the power adapter;
the comparison unit is used for comparing the maximum load current value of the power adapter with a current value required by a battery of the mobile terminal;
and the output unit is used for outputting a reminding signal when the maximum load current value is smaller than the current value required by the battery of the mobile terminal through comparison by the comparison unit.
5. The power adapter detection device of claim 4, comprising
And the display unit is used for displaying the maximum load current value of the power adapter connected to the mobile terminal.
6. The power adapter detection device according to claim 4, wherein the step-by-step increase of the load resistance value of the power adapter is specifically:
and loading a load resistance value of 5 ohms for the power adapter, and gradually increasing the load resistance value of the power adapter by taking 2.5 ohms as a step from 5 ohms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711327749.7A CN107918076B (en) | 2015-06-12 | 2015-06-12 | Power adapter detection method and power adapter detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711327749.7A CN107918076B (en) | 2015-06-12 | 2015-06-12 | Power adapter detection method and power adapter detection device |
| CN201510325205.1A CN104865477B (en) | 2015-06-12 | 2015-06-12 | A kind of power supply adaptor detection method and power supply adaptor detection means |
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| CN201510325205.1A Division CN104865477B (en) | 2015-06-12 | 2015-06-12 | A kind of power supply adaptor detection method and power supply adaptor detection means |
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| CN107918076A CN107918076A (en) | 2018-04-17 |
| CN107918076B true CN107918076B (en) | 2020-02-14 |
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| CN201711327749.7A Expired - Fee Related CN107918076B (en) | 2015-06-12 | 2015-06-12 | Power adapter detection method and power adapter detection device |
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| CN105738683B (en) * | 2016-03-11 | 2018-05-08 | 苏州农业职业技术学院 | Warning circuit based on power supply adaptor |
| WO2019237330A1 (en) * | 2018-06-15 | 2019-12-19 | Oppo广东移动通信有限公司 | Adapter aging detection method and apparatus for device to be charged |
| WO2019237331A1 (en) * | 2018-06-15 | 2019-12-19 | Oppo广东移动通信有限公司 | Adapter aging detection method and apparatus for device to be charged |
| CN110456147B (en) * | 2019-08-29 | 2021-12-24 | 无锡睿勤科技有限公司 | Wattage information acquisition method and device of power adapter and electronic equipment |
| CN110850216A (en) * | 2019-11-27 | 2020-02-28 | 桃江凤冠电机有限公司 | Detection device and detection method for power adapter |
| CN116155081B (en) * | 2023-04-23 | 2023-06-27 | 深圳市澳博森科技有限公司 | Overload adjustment method and device based on multiport power adapter |
| CN117148023B (en) * | 2023-10-31 | 2024-01-26 | 威海海泰电子有限公司 | Intelligent power adapter production detection method and system |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104865477A (en) | 2015-08-26 |
| CN104865477B (en) | 2018-01-16 |
| CN107918076A (en) | 2018-04-17 |
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