CN109683007B - Current testing mold, system and method - Google Patents
Current testing mold, system and method Download PDFInfo
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- CN109683007B CN109683007B CN201811439832.8A CN201811439832A CN109683007B CN 109683007 B CN109683007 B CN 109683007B CN 201811439832 A CN201811439832 A CN 201811439832A CN 109683007 B CN109683007 B CN 109683007B
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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
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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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
Abstract
The application discloses a current testing mold, a system and a method, and relates to the field of electronic equipment detection. The current testing die comprises a die body, wherein the die body is used for mounting the mobile terminal; the isolation voltage-stabilizing source is arranged on the die body and used for being connected with the programmable power supply in series to test the current of the mobile terminal, and the output voltage of the isolation voltage-stabilizing source is the difference between the power supply voltage of the mobile terminal and the output voltage of the programmable power supply. This application is through installation isolation steady voltage source on the mould for only need change the mould and just can test the cell-phone product of different models, both simplified test operation and reached the test requirement again.
Description
Technical Field
The present application relates to the field of electronic device detection, and more particularly, to a current testing mold, system, and method.
Background
With the continuous development of electronic devices, users have higher and higher requirements for the electronic devices, the complexity of the electronic devices is also continuously improved, and the hardware circuit and software design are more and more complex. In the product development stage, electronic equipment needs to be evaluated, tested and continuously optimized, and a large number of tests are required in the period. For electronic devices such as mobile phones, users have increasingly demanded battery endurance, charging efficiency, etc. of mobile phones, and manufacturers have also continuously optimized power supply performance of mobile phone batteries. In the process of improving the battery of the mobile phone, manufacturers usually perform a current test on the battery of the mobile phone before the electronic device, such as the mobile phone, leaves the factory in order to improve the yield of the battery. However, the power supply voltages required by different models of mobile phones may be different, the output voltage of the power supply needs to be frequently adjusted to supply power to the mobile phone in the test process, and the test operation is complicated.
Disclosure of Invention
In view of the above problems, the present application provides a current testing mold, system and method, which can simplify the testing operation and improve the testing efficiency.
In a first aspect, an embodiment of the present application provides a current testing mold, configured to test a current of a mobile terminal, where the mold includes: the mobile terminal comprises a mould body, a base and a plurality of connecting pieces, wherein the mould body is used for mounting the mobile terminal; the isolation voltage-stabilizing source is arranged on the die body and used for being connected with the programmable power supply in series to test the current of the mobile terminal, and the output voltage of the isolation voltage-stabilizing source is the difference between the power supply voltage of the mobile terminal and the output voltage of the programmable power supply.
In a second aspect, an embodiment of the present application provides a current testing system for testing a current of a mobile terminal, the system including: a current testing die as described above in relation to the first aspect; and the programmable power supply is connected with an isolation voltage-stabilizing source in the current testing die in series, and the output voltage of the isolation voltage-stabilizing source is the difference between the power supply voltage of the mobile terminal and the output voltage of the programmable power supply.
In a third aspect, an embodiment of the present application provides a current testing method, which is applied to a current testing system, and the method includes: connecting the mobile terminal with a program-controlled power supply and an isolation voltage-stabilizing source respectively so as to enable the program-controlled power supply and the isolation voltage-stabilizing source to provide a test voltage for the mobile terminal, wherein the output voltage of the isolation voltage-stabilizing source is the difference between the power supply voltage of the mobile terminal and the output voltage of the program-controlled power supply; and acquiring the test current of the mobile terminal.
According to the current testing die, the current testing system and the current testing method, the mobile terminal is installed on the die body, the isolation voltage-stabilizing source is arranged on the die body and used for being connected with the program-controlled power supply in series to test the current of the mobile terminal, and the output voltage of the isolation voltage-stabilizing source is the difference between the power supply voltage of the mobile terminal and the output voltage of the program-controlled power supply. This application is through installation isolation steady voltage source on current test mould, thereby can be according to mobile terminal's model, select the current test mould that corresponds the model, and carry out the current test with programme-controlled power series connection, make only need change the mould in the test process just can test the mobile terminal of different models, both satisfied the test requirement and simplified test operation, make low output voltage's programme-controlled power can be applicable to high supply voltage's test environment simultaneously, the application scene of low output voltage's programme-controlled power has been widened, the cost that the change programme-controlled power brought has been saved.
These and other aspects of the present application will be more readily apparent from the following description of the embodiments.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram illustrating a structure of a current testing die according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a current testing system according to another embodiment of the present application;
FIG. 3 is a schematic flow chart illustrating a current testing method according to another embodiment of the present application;
FIG. 4 is a schematic flow chart diagram illustrating a current testing method according to still another embodiment of the present application;
fig. 5 is a schematic diagram illustrating an execution flow of steps S480, S450, and S460 in a current testing method according to still another embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.
At present, in the field of electronic equipment detection, a programmable power supply is often adopted to provide stable voltage for a product to be tested, and meanwhile, the programmable power supply is used for detecting the current passing through the product to be tested, so that the programmable power supply can bring great convenience to current test work. However, with the development of technology, the number of product models on the market is also increasing, the supply voltages required by products of different models are different, and different output voltages are required to be provided for the test of electronic equipment required by different supply voltages.
In order to test electronic devices with different power supply voltage requirements, such as mobile phone products, in the prior art, the output voltage of the programmable power supply is mainly adjusted to meet the power supply voltage requirement of the product to be tested, and even when the maximum output voltage of part of the programmable power supply cannot meet the power supply voltage requirement of the product to be tested, a tester needs to replace the programmable power supply to meet the product test with high power supply voltage requirement. The test flow is complicated, the better test efficiency cannot be achieved, and along with the technical development and the continuous increase of future products, the current test method is difficult to meet the requirement of more and more tests.
In order to solve the above problems, the inventors have long conducted extensive research and have proposed a current testing mold, a system and a method in the embodiments of the present application.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all 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 application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a current testing mold 100 according to an embodiment of the present application.
In this embodiment, as shown in fig. 1, the current testing die 100 includes a die body 110 and an isolation voltage regulator 120. Wherein, the isolated voltage-stabilizing source 120 is disposed on the die body 110.
In this embodiment, a terminal installation groove is formed in the mold body 110 for installing the mobile terminal, so that the mobile terminal can be electrically connected to the isolation voltage-stabilizing source and the program-controlled power supply respectively. The isolation regulator 120 is connected in series with the programmable power supply for testing the current of the mobile terminal. Specifically, the programmable power supply is connected in series with the isolation voltage regulator 120 to provide the voltage required by the test for the mobile terminal, wherein the voltage required by the test for the mobile terminal is the power supply voltage of the mobile terminal. The programmable power supply can read the output current to obtain the current flowing through the mobile terminal, so that the aim of testing the current of the mobile terminal is fulfilled.
For example, when a mobile phone manufacturer needs to perform a current test on a mobile phone product, the output voltage of the programmable power supply can be adjusted to a voltage value required by a mobile phone with the lowest power supply voltage requirement currently on the market, and the output voltage of the programmable power supply can also be adjusted to a lowest voltage value of the same type of product required to be tested by the manufacturer. It can be understood that by controlling the output voltage of the programmable power supply at or below the minimum voltage value required by the test, when the mobile terminal with high power supply voltage is tested, the test requirement of the mobile terminal with high power supply voltage can be met by connecting an isolation voltage-stabilizing source in series without adjusting the output voltage of the programmable power supply.
It can be understood that the output voltage of the programmable power supply is set to the voltage value of the same type of product meeting the requirement of low voltage, so that the output voltage of the programmable power supply is not greater than the power supply voltage of the mobile terminal to be tested all the time, and thus the power supply voltage required by the test can be provided for the mobile terminal to be tested meeting the requirement of different power supply voltages by connecting different isolation voltage-stabilizing sources 120 in series, so that the programmable power supply with lower output voltage can also be applied to the test of the mobile terminal meeting the requirement of high power supply voltage, that is, the embodiment can provide the power supply voltage required by the test for the mobile terminals of different models only by selecting different current test dies 100, and does not need to set the output voltage of the programmable power supply for different mobile terminals, and meanwhile, the programmable power supply with lower output voltage can be applied to the test of the product meeting the requirement of higher voltage, thereby simplifying the test operation, the test development efficiency is improved, the application scene of the low-output voltage program-controlled power supply is widened, and the test cost is reduced.
In this embodiment, the output voltage of the isolation regulator 120 is the difference between the power supply voltage of the mobile terminal and the output voltage of the programmable power supply, for example, the output voltage of the isolation regulator 120 is the power supply voltage of the mobile terminal-the output voltage of the programmable power supply. In this embodiment, the output voltage of the programmable power supply keeps a constant value, and the output voltage of the isolation voltage stabilization source 120 can be calculated according to the power supply voltage of the mobile terminal, because the isolation voltage stabilization source 120 is arranged on the die body 110, different current testing dies 100 can correspond to the isolation voltage stabilization sources 120 with different output voltages, so that the testing requirements of the mobile terminals with different power supply voltages can be met only by selecting different current testing dies 100, the output voltage of the programmable power supply does not need to be adjusted for different mobile terminals, and even the programmable power supply with higher output voltage is replaced, the testing operation is simplified, the efficiency of testing and development is improved, and the testing cost brought by replacing the programmable power supply is saved.
As a way, the current testing mold 100 corresponding to different models can be set according to the models of different mobile terminals, so that in practical application, the corresponding current testing mold 100 can be directly selected for testing according to the model of the mobile terminal to be tested, and the testing efficiency is improved.
In a specific application scenario, for example, in a mobile terminal product test, it is necessary to perform a current test on different types of mobile terminals a and B, where a supply voltage of the mobile terminal a is a supply voltage a, a supply voltage of the mobile terminal B is a supply voltage B, and the supply voltage a is a supply voltage B<The supply voltage b can be set as the output voltage V of the programmable power supply0Output voltage V0Not greater than supply voltage a and not greater than supply voltage b. According to the supply voltage a and the output voltage V of the programmable power supply0The output voltage V of the isolated regulator 120 can be calculatedASo that V isA＝a-V0And further according to the output voltage VAAnd selecting a corresponding current testing mold 100, and installing the mobile terminal A in a terminal installation groove of the current testing mold 100, and connecting the mobile terminal A with a program-controlled power supply to perform current testing.
Further, when the mobile terminal B needs to be tested, the output voltage V of the programmable power supply is obtained according to the power supply voltage B0The output voltage V of the isolated regulator 120 can be calculatedBSo that V isB＝b-V0And further according to the output voltage VBSelects the corresponding current test die 100 and movesThe terminal B is installed in the terminal installation groove of the current test mold 100, connected with the program-controlled power supply, and performs a current test. Therefore, according to the mobile terminals of different models, the current test mould 100 of the corresponding model is selected or replaced to perform current test on the mobile terminals with different power supply voltage requirements, the output voltage of the programmable power supply does not need to be adjusted, and the test operation is greatly simplified while the test requirements are met.
In some embodiments, the output voltage of the isolation voltage regulator 120 is adjustable, that is, when a current test is performed on mobile terminals of different models, the current test die 100 does not need to be frequently replaced, but the output voltage of the isolation voltage regulator 120 in the current test die 100 is adjusted, so that the output voltage of the isolation voltage regulator 120 is the difference between the power supply voltage of the mobile terminal and the output voltage of the programmable power supply, and the mobile terminals with different power supply voltage requirements are powered by adjusting the output voltage of the isolation voltage regulator 120 in the current test die 100, so that the test requirements of the mobile terminals with different power supply voltage requirements are met, the frequency of replacing the current test die 100 can be reduced, and fine adjustment of the output voltage of the current test die 100 can be realized, so that more accurate output voltage is provided.
In the current testing die 100 provided by this embodiment, the mobile terminal is mounted on the die body 110, and the isolation voltage regulator 120 is arranged on the die body 110 and is used for testing the current of the mobile terminal by connecting in series with the program control power supply 140, wherein the output voltage of the isolation voltage regulator 120 is the difference between the power supply voltage of the mobile terminal and the output voltage of the program control power supply. Therefore, by installing the isolation voltage stabilization source 120 on the current test die 100, the current test die 100 with the corresponding model can be selected according to the model of the mobile terminal, and is connected with the programmable power supply in series for current test, so that the mobile terminals with different models can be tested only by replacing the current test die 100 in the test process, the test requirement is met, the test operation is simplified, meanwhile, the programmable power supply with low output voltage can be suitable for the test environment with high supply voltage, the application scene of the programmable power supply with low output voltage is widened, and the cost brought by replacing the programmable power supply is saved. In addition, on the basis of improving the testing efficiency by using the current testing die, the present embodiment may further implement fine adjustment of the output voltage of the current testing die 100 by adjusting the isolation voltage regulator 120, thereby providing a more accurate output voltage and improving usability.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a current testing system according to another embodiment of the present application. As shown in fig. 2, the current test system 10 includes: a current test die 100 and a programmable power supply 140.
It should be noted that the current testing mold 100 provided in this embodiment is substantially the same as the current testing mold 100 described in the previous embodiment, and a detailed description thereof is given for an embodiment and is not repeated herein.
The current testing die 100 comprises a die body 110 and an isolation voltage regulator 120, the isolation voltage regulator 120 is arranged on the die body 110, a terminal mounting groove 130 is formed in the die body 110 and used for mounting a mobile terminal, so that the mobile terminal can be electrically connected with the isolation voltage regulator 120 and a programmable power supply 140 respectively, and the isolation voltage regulator 120 is connected with the programmable power supply 140 in series to test the current of the mobile terminal.
In this embodiment, the output voltage of the isolation voltage regulator 120 is determined by the power supply voltage of the mobile terminal and the output voltage of the programmable power supply 140, and specifically, the output voltage of the isolation voltage regulator 120 is the difference between the power supply voltage of the mobile terminal and the output voltage of the programmable power supply 140.
In this embodiment, the current testing mold 100 in the current testing system 10 is electrically connected to the programmable power supply 140. Specifically, as a mode, the current testing mold 100 includes two positive and negative pins, which are respectively led out from the isolation voltage regulator 120 and the terminal installation groove 130, and are correspondingly connected to the positive and negative electrodes of the program-controlled power supply 140, so that the isolation voltage regulator 120 is connected in series with the program-controlled power supply 140 to provide voltage for the mobile terminal installed in the terminal installation groove 130.
Alternatively, the connection lines between the current testing die 100 and the programmable power supply 140 may not be completely built into the die body 110. For example, a pin is led out from one end of the isolation voltage-stabilizing source 120 for connecting with one pole of the programmable power supply 140, the other end of the isolation voltage-stabilizing source 120 is connected with one end of the terminal mounting groove 130, a connecting line of the two is arranged in the die body 110, a pin is led out from the other end of the terminal mounting groove 130 for connecting with the other pole of the programmable power supply 140, and the connecting line of the terminal mounting groove 130 and the programmable power supply 140 can be arranged outside the die body 110. The mobile terminal is mounted in the terminal mounting slot 130 such that the isolated regulator 120 is connected in series with the programmable power supply 140 to provide voltage to the mobile terminal.
In the current testing system 10 provided by this embodiment, the mobile terminal is installed on the die body 110 of the current testing die 100, and the isolation voltage regulator 120 is arranged on the die body 110 and is used for being connected in series with the programmable power supply 140 to test the current of the mobile terminal, wherein the output voltage of the isolation voltage regulator 120 is the difference between the power supply voltage of the mobile terminal and the output voltage of the programmable power supply 140. Therefore, by installing the isolation voltage stabilizing source 120 on the current testing mold 100, the current testing mold 100 with the corresponding model can be selected according to the model of the mobile terminal, and is connected with the programmable power supply 140 in series for current testing, so that the mobile terminals with different models can be tested only by replacing the current testing mold in the testing process, the testing requirement is met, the testing operation is simplified, meanwhile, the programmable power supply with low output voltage can be suitable for the testing environment with high supply voltage, the application scene of the programmable power supply with low output voltage is widened, and the cost brought by replacing the programmable power supply is saved. In addition, on the basis of improving the testing efficiency by adopting the current testing die, the embodiment can also realize fine adjustment of the output voltage of the current testing die by adjusting the isolation voltage-stabilizing source, thereby providing more accurate output voltage and improving the usability.
Referring to fig. 3, fig. 3 is a schematic flow chart of a current testing method according to another embodiment of the present application. The current testing method provided by the embodiment is suitable for the current testing mold 100 provided by the above embodiment.
Step S310: and respectively connecting the mobile terminal with the program-controlled power supply and the isolated voltage-stabilizing power supply.
In this embodiment, the mobile terminal is connected to the program-controlled power supply and the isolation voltage-stabilizing source respectively, so that the program-controlled power supply and the isolation voltage-stabilizing source are connected in series to provide a test voltage for the mobile terminal, wherein an output voltage of the isolation voltage-stabilizing source is a difference between a power supply voltage of the mobile terminal and an output voltage of the program-controlled power supply.
In some embodiments, the output voltage of the programmable power supply may be adjusted to a voltage value of a same type of product meeting a low voltage requirement, for example, when a mobile phone manufacturer needs to perform a current test on a mobile phone product, the output voltage of the programmable power supply may be adjusted to a voltage value required by a mobile phone with the lowest power supply voltage requirement currently on the market, or the output voltage of the programmable power supply may be adjusted to a lowest voltage value of a same type of product required to be tested by the manufacturer.
Furthermore, the output voltage of the programmable power supply is set to be the voltage value of the same type of products meeting the low voltage requirement, so that the output voltage of the programmable power supply is not more than the power supply voltage of the mobile terminal to be tested all the time, the power supply voltage required by testing can be provided for the mobile terminal to be tested with different power supply voltage requirements by connecting different isolation voltage stabilizing sources in series, and the programmable power supply with lower output voltage can also be applied to the testing of the mobile terminal with high power supply voltage requirements. It can be understood that, in this embodiment, it is not necessary to adjust the output voltage of the programmable power supply for different models or different mobile terminals, and the programmable power supply with a lower output voltage can be applied to the product test with a higher voltage requirement, so that the test operation is simplified, the test development efficiency is improved, the application scenario of the programmable power supply with a low output voltage is widened, and the test cost is reduced.
In this embodiment, the output voltage of the isolation voltage regulator is the difference between the power supply voltage of the mobile terminal and the output voltage of the programmable power supply, that is, the output voltage of the isolation voltage regulator is the power supply voltage of the mobile terminal-the output voltage of the programmable power supply. In this embodiment, the output voltage of the programmable power supply is kept at a constant value, and the output voltage of the isolation voltage stabilization source can be calculated according to the power supply voltage of the mobile terminal, so that when the mobile terminal with different power supply voltages is subjected to current test, the current test die provided with the isolation voltage stabilization sources with different output voltages can be replaced and connected in series with the programmable power supply, so that the series output voltage of the isolation voltage stabilization source and the programmable power supply reaches the power supply voltage of the mobile terminal to be tested, and the test requirement is met. The output voltage of the programmable power supply does not need to be adjusted for different models or different mobile terminals, and even the programmable power supply with higher output voltage is replaced, and the power supply voltage requirement required by the mobile terminal test can be met only by replacing the current testing mold corresponding to the model of the mobile terminal, so that the test requirement is met, and the test operation is simplified.
As a mode, the current testing dies corresponding to different models can be set according to different models of the mobile terminal, so that in practical application, the corresponding current testing dies can be directly selected for testing according to the model of the mobile terminal to be tested, and the testing efficiency is improved. Specifically, for example, there are different types of mobile terminal a and mobile terminal B, and the power supply voltages of the mobile terminal a and the mobile terminal B are different, at this time, according to the difference between the power supply voltage of the mobile terminal and the output voltage of the programmable power supply, the output voltage corresponding to the mobile terminal a may be set to be VAThe corresponding output voltage of the mobile terminal B is VBThe current testing die can directly select the output voltage as V when the current testing is carried out on the mobile terminal AAThe current testing die can be used for testing, and when the current testing is carried out on the mobile terminal B, the output voltage can be directly selected to be VBThe current testing mould is used for testing without calculating the difference between the power supply voltage of the mobile terminal and the output voltage of the programmable power supply every time, then the current testing mould with the output voltage being the difference between the power supply voltage of the mobile terminal and the output voltage of the programmable power supply is selected, and the corresponding type of electricity is directly selected or replaced according to the type of the mobile terminal to be testedThe test requirement can be met by flowing the test die, so that the test operation is simplified, and the test efficiency is improved.
Step S320: and acquiring the test current of the mobile terminal.
In this embodiment, the output current value can be read through the programmable power supply, so as to obtain the current flowing through the mobile terminal, thereby achieving the purpose of testing the current of the mobile phone. Specifically, the programmable power supply is connected with the isolation voltage-stabilizing source and the mobile terminal in series, the programmable power supply is connected with the isolation voltage-stabilizing source in series to provide test voltage for the mobile terminal, and the output current value flowing through the mobile terminal can be read through the programmable power supply, so that the test current of the mobile terminal is obtained, and the current test of the mobile terminal is completed.
In a specific application scenario, for example, in the test of mobile phone products, the output voltage is adopted as the output voltage V0When the current test needs to be carried out on the mobile phone C with the power supply voltage as the power supply voltage C, the current test mould U with the corresponding model is selected and set according to the model of the mobile phone CcThe current testing mould U of the corresponding modelcAn isolated voltage regulator is arranged in the voltage regulator, wherein the output voltage V of the isolated voltage regulatorcFor the supply voltage C of the mobile phone C and the output voltage V of the program-controlled power supply0The difference, i.e. Vc＝c-V0Installing the mobile phone C in the current testing mold UcIn the middle, a program control power supply and a current test die UcConnected to connect the programmable power supply with the current testing die UcThe isolation voltage stabilizing sources are connected in series to provide test voltage for the mobile phone C, so that the test requirement is met, the current value flowing through the mobile phone C at present is read through the program control power supply, and the purpose of testing the current of the mobile phone C is achieved. The testing requirements can be met by selecting the current testing mould with the corresponding model according to the model of the mobile phone, the testing current of the mobile phone can be obtained through the program-controlled power supply, the output voltage of the program-controlled power supply does not need to be adjusted frequently, and the testing operation is simplified.
Further, after the mobile phone C is tested, when the current of the mobile phone D with the power supply voltage of D is tested, wherein the model of the mobile phone D is different from that of the mobile phone C, the setting is selected according to the model of the mobile phone DCurrent testing die U corresponding to modeldThe current testing mould U of the corresponding modelcAn isolated voltage regulator is arranged in the voltage regulator, wherein the output voltage V of the isolated voltage regulatord＝d-V0The voltage required by the test of the mobile phone D is achieved, and the current value flowing through the mobile phone D at present is read through the program-controlled power supply, so that the purpose of carrying out the current test on the mobile phone D is achieved. When the mobile terminals of different models are tested, the testing requirements of the mobile terminals of different models can be met only by replacing the current testing die of the corresponding model, the output voltage of the programmable power supply does not need to be adjusted, the testing operation is greatly simplified, and the testing efficiency is improved.
According to the current testing method provided by the embodiment, the isolation voltage-stabilizing source isolated from the programmable power supply is connected in series, wherein the output voltage of the isolation voltage-stabilizing source is the difference between the power supply voltage of the mobile terminal and the output voltage of the programmable power supply, so that the output voltage obtained by connecting the programmable power supply and the isolation voltage-stabilizing source in series can meet the testing requirement of the mobile terminal, and meanwhile, the output current value of the current circuit can be read through the programmable power supply, the current flowing through the mobile terminal is obtained, and the purpose of testing the current of the mobile terminal is achieved. Therefore, the testing requirement is met, the testing operation is simplified, meanwhile, the low-output-voltage programmable power supply can be suitable for the testing environment with high power supply voltage, the application scene of the low-output-voltage programmable power supply is widened, and the cost brought by replacing the programmable power supply is saved.
Referring to fig. 4, fig. 4 is a schematic flow chart of a current testing method according to another embodiment of the present application. The current testing method provided by the embodiment is suitable for the current testing mold 100 provided by the above embodiment.
Step S410: and setting the output voltage of the programmable power supply to a voltage value meeting the requirement of the preset low power supply voltage.
In this embodiment, the preset low voltage requirement may be a minimum voltage requirement required by the current products of the same type on the market, or may be a minimum voltage requirement required by the product to be tested. Specifically, for example, when a mobile phone manufacturer needs to perform a current test on a mobile phone product, the output voltage of the programmable power supply may be adjusted to a voltage value required by a mobile phone with the lowest requirement on the current power supply voltage on the market, or the output voltage of the programmable power supply may be adjusted to a lowest voltage value of a product of the same type to be tested by the manufacturer.
It can be understood that by controlling the output voltage of the programmable power supply at or below the minimum voltage value required by the test, when the mobile terminal with high power supply voltage is tested, the test requirement of the mobile terminal with high power supply voltage can be met by connecting an isolation voltage-stabilizing source in series without adjusting the output voltage of the programmable power supply.
Furthermore, the output voltage of the programmable power supply is set to be the voltage value of the same type of products meeting the preset low voltage requirement, so that the output voltage of the programmable power supply is not more than the power supply voltage of the mobile terminal to be tested all the time, the power supply voltage required by testing can be provided for the mobile terminal to be tested with different power supply voltage requirements by connecting different isolation voltage stabilizing sources in series, and the programmable power supply with lower output voltage can also be applied to the testing of the mobile terminal with high power supply voltage requirements. It can be understood that, this embodiment can not need to adjust the output voltage of the program-controlled power supply to different models or different mobile terminals, and can also make the program-controlled power supply with lower output voltage be applicable to the product test with higher voltage requirement, thereby simplifying the test operation, improving the test development efficiency, simultaneously making the program-controlled power supply with low output voltage be applicable to the test environment with high supply voltage, widening the application scenario of the program-controlled power supply with low output voltage, and saving the cost brought by replacing the program-controlled power supply.
Step S420: and acquiring the power supply voltage of the mobile terminal.
In this embodiment, the supply voltage of the mobile terminal is the test voltage required by the mobile terminal, and the supply voltage of the mobile terminal is obtained, so that the test voltage provided for the mobile terminal can be adjusted according to the supply voltage of the mobile terminal, and the provided test voltage can meet the requirement for testing the mobile terminal.
In this embodiment, after step S420, step S430 may be executed, and step S470 may also be executed.
Step S430: and selecting a current testing die based on the power supply voltage of the mobile terminal.
In this embodiment, the current testing die is provided with the isolation voltage regulator, and the output voltage of the isolation voltage regulator can be obtained based on the power supply voltage of the mobile terminal and in combination with the output voltage of the program control power supply. The specific output voltage of the isolation voltage-stabilizing source is the difference between the power supply voltage of the mobile terminal and the output voltage of the programmable power supply, for example, the output voltage of the isolation voltage-stabilizing source is the power supply voltage of the mobile terminal-the output voltage of the programmable power supply.
It should be noted that different models of current testing dies can correspond to isolated voltage stabilizing sources with different output voltages, different models of mobile terminals can correspond to different models of current testing dies, that is, current testing dies with corresponding models can be obtained according to the models of the mobile terminals, the output voltage provided by the isolation voltage-stabilizing source in the current testing mould of the corresponding model is the difference between the power supply voltage of the mobile terminal of the model and the output voltage of the program-controlled power supply, therefore, the testing requirements of mobile terminals of different models can be met only by selecting or replacing different current testing dies, the output voltage of the programmable power supply does not need to be adjusted for different mobile terminals, and even the programmable power supply with higher output voltage is replaced, so that the testing operation is simplified, the testing development efficiency is improved, and the testing cost caused by replacing the programmable power supply is saved.
Step S440: and installing the mobile terminal into the current testing mold.
In this embodiment, the current testing die comprises a die body and an isolation voltage-stabilizing source, wherein a terminal mounting groove is formed in the die body, the mobile terminal can be mounted in the terminal mounting groove, the mobile terminal can be electrically connected with the isolation voltage-stabilizing source and the program-controlled power supply respectively through the terminal mounting groove, and then the isolation voltage-stabilizing source is connected with the program-controlled power supply in series, so that voltage required by testing is provided for the mobile terminal, namely power supply voltage of the mobile terminal. The mobile terminal is installed in the current testing mold, so that the time consumed by connecting a circuit in the testing process can be reduced, specifically, in the testing process, only the pins of the current testing mold are correspondingly connected with the positive electrode and the negative electrode of the programmable power supply, and the testing efficiency is greatly improved.
Step S450: and respectively connecting the mobile terminal with the program-controlled power supply and the isolated voltage-stabilizing power supply.
In this embodiment, step S450 is substantially the same as step S310, and for detailed description, please refer to step S310, which is not described herein again. Only one specific application scenario of the present embodiment will be described below by way of example.
In a specific application scenario, for example, in a mobile terminal product test, it is necessary to perform a current test on different types of mobile terminals a and B, where a supply voltage of the mobile terminal a is a supply voltage a, a supply voltage of the mobile terminal B is a supply voltage B, and the supply voltage a is a supply voltage B<The supply voltage b can be set as the output voltage V of the programmable power supply0Output voltage V0Not greater than supply voltage a and not greater than supply voltage b. According to the supply voltage a and the output voltage V of the programmable power supply0The output voltage V of the isolated regulator 120 can be calculatedASo that V isA＝a-V0And further according to the output voltage VASelecting corresponding current testing die UaAnd installing the mobile terminal A on the current testing mold UaIn, the current testing die UbIs connected with a program control power supply so as to ensure that the current test mould UbThe programmable power supply is connected in series to provide test voltage for the mobile terminal, and current test is carried out on the mobile terminal A.
Further, when the mobile terminal B needs to be tested, the output voltage V of the programmable power supply is obtained according to the power supply voltage B0The output voltage V of the isolated regulator 120 can be calculatedBSo that V isB＝b-V0And further according to the output voltage VBSelecting corresponding current testing die UbAnd installing the mobile terminal B on the current testing mold UbIn, the current testing die UbIs connected with a program control power supply so as to ensure that the current test mould UbThe programmable power supply is connected in series to provide test voltage for the mobile terminal, and current test is carried out on the mobile terminal. Thereby to obtainThe current testing method and the current testing device have the advantages that the current testing can be carried out on the mobile terminals with different power supply voltage requirements by selecting or replacing the current testing die with the corresponding model according to the mobile terminals with different models, the output voltage of the programmable power supply does not need to be adjusted, the testing requirements are met, and meanwhile, the testing operation is greatly simplified.
Step S460: and acquiring the test current of the mobile terminal.
In this embodiment, step S460 is substantially the same as step S320, and please refer to step S320 for detailed description, which is not described herein again.
In this embodiment, after step S420 is executed, step S470 may also be executed.
Step S470: and adjusting the output voltage of the isolation voltage-stabilizing source based on the power supply voltage of the mobile terminal.
In this embodiment, the output voltage of the isolation voltage regulator may be adjusted, that is, when performing current testing on mobile terminals of different models, the current testing mold may not need to be frequently replaced, but the output voltage of the isolation voltage regulator in the current testing mold may be adjusted to make the output voltage of the isolation voltage regulator be the difference between the power supply voltage of the mobile terminal and the output voltage of the program control power supply, so as to supply power to the mobile terminals with different power supply voltage requirements by adjusting the output voltage of the isolation voltage regulator in the current testing mold, and meet the testing requirements of the mobile terminals with different power supply voltage requirements, thereby reducing the frequency of replacing the current testing mold, and realizing fine adjustment of the output voltage of the current testing mold, thereby providing more accurate output voltage.
In the present embodiment, after step S470 is performed, step S440 may be performed.
Further, referring to fig. 5, the embodiment may further include a step S480 before the step S450.
Step S480: the output voltage of the programmable power supply is regulated.
In this embodiment, the output voltage of the programmable power supply may be adjusted, so that the sum of the output voltages of the programmable power supply and the isolation voltage regulator reaches the power supply voltage of the mobile terminal, and the test requirement of the mobile terminal is met.
As a mode, when the maximum output voltage of the programmable power supply is higher than the power supply voltage of the mobile terminal, the output voltage of the programmable power supply may be adjusted according to the power supply voltage of the mobile terminal, so that the programmable power supply provides the mobile terminal with the required power supply voltage to perform the current test. The current testing mold is not used, so that the testing requirements of mobile terminals of different models can be met by directly adjusting the output voltage of the programmable power supply under the conditions that the current testing mold is damaged or insufficient and the like, the testing can be completed by using the programmable power supply under the conditions that the current testing mold is damaged or insufficient and the like, the testing requirements can be met by adjusting the programmable power supply on the basis that the current testing mold is adopted to improve the testing efficiency, and the usability can be improved by adjusting the programmable power supply when the current testing mold can not be normally tested.
As another mode, when the current test mold is used to provide the test voltage for the current mobile terminal, if the absolute value of the difference between the power supply voltage of the next mobile terminal to be tested and the power supply voltage of the current mobile terminal is not greater than the difference between the maximum output voltage value of the programmable power supply and the current output voltage value, the current test mold may not be replaced, and the programmable power supply may be directly utilized to perform fine adjustment on the output voltage, so that the output voltage of the programmable power supply may be adjusted to reach the power supply voltage of the mobile terminal under the condition that the current test mold with high output voltage is insufficient, thereby completing the test. Therefore, on the basis of improving the testing efficiency by adopting the current testing die, the testing requirement can be met by adjusting the programmable power supply when the current testing die with high output voltage is insufficient, and the usability is further improved.
According to the current testing method provided by the embodiment, the isolation voltage-stabilizing source isolated from the programmable power supply is connected in series, so that the output voltage obtained by connecting the programmable power supply and the isolation voltage-stabilizing source in series can meet the testing requirement of the mobile terminal, and meanwhile, the output current value of the current circuit can be read through the programmable power supply, so that the current flowing through the mobile terminal is obtained, and the purpose of testing the current of the mobile terminal is achieved. The isolation voltage stabilization source is arranged in the current test die, the current test die corresponding to different models can be arranged according to different models of the mobile terminal, so that the current test die corresponding to the model can be selected according to the model of the mobile terminal, and is connected with the programmable power supply in series for current test, so that the mobile terminals of different models can be tested only by replacing the die in the test process, the test requirement is met, the test operation is simplified, meanwhile, the programmable power supply with low output voltage can be suitable for the test environment with high supply voltage, the application scene of the programmable power supply with low output voltage is widened, and the cost brought by replacing the programmable power supply is saved. In addition, on the basis of improving the testing efficiency by adopting the current testing die, the embodiment can also realize fine adjustment of the output voltage of the current testing die by adjusting the isolation voltage-stabilizing source, thereby providing more accurate output voltage, and further improving the usability by adjusting the output voltage of the program-controlled power supply.
It should be understood that although the steps in the flowcharts of fig. 3 and 4 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 3 and 4 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least some of the sub-steps or stages of other steps.
In summary, according to the current testing mold, the system and the method provided by the embodiment of the application, the mobile terminal is installed on the mold body, and the isolation voltage-stabilizing source is arranged on the mold body and used for being connected with the program-controlled power supply in series to test the current of the mobile terminal, wherein the output voltage of the isolation voltage-stabilizing source is the difference between the power supply voltage of the mobile terminal and the output voltage of the program-controlled power supply. This application is through installation isolation steady voltage source on current test mould, thereby can be according to mobile terminal's model, select the current test mould that corresponds the model, and carry out the current test with programme-controlled power series connection, make only need change the mould in the test process just can test the mobile terminal of different models, both satisfied the test requirement and simplified test operation, make low output voltage's programme-controlled power can be applicable to high supply voltage's test environment simultaneously, the application scene of low output voltage's programme-controlled power has been widened, the cost that the change programme-controlled power brought has been saved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "an embodiment," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment, example, or embodiment is included in at least one embodiment, example, or embodiment of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (7)
1. A current testing die for testing current of a mobile terminal, the current testing die comprising:
the mould body is used for mounting the mobile terminal;
the isolation voltage-stabilizing source is arranged on the die body and used for being connected with a programmable power supply in series to test the current of the mobile terminal, the output voltage of the programmable power supply keeps constant, the output voltage of the programmable power supply is not greater than the power supply voltage of the mobile terminal all the time, the output voltage of the isolation voltage-stabilizing source is the difference between the power supply voltage of the mobile terminal and the output voltage of the programmable power supply, different current testing dies correspond to the isolation voltage-stabilizing sources with different output voltages, and testing is provided for the mobile terminals with different power supply voltages by selecting different current testing dies.
2. The current testing die of claim 1, wherein the output voltage of the isolated regulator is adjustable.
3. The current testing die of claim 1, wherein the die body is provided with a terminal mounting groove for mounting the mobile terminal so that the mobile terminal is electrically connected to the isolated voltage regulator and the programmable power supply, respectively.
4. A current testing system for testing current of a mobile terminal, the current testing system comprising:
a current testing die according to any one of claims 1 to 3;
the programmable power supply is connected with an isolation voltage stabilization source in the current testing die in series, the output voltage of the programmable power supply keeps constant, the output voltage of the programmable power supply is not larger than the power supply voltage of the mobile terminal all the time, and the output voltage of the isolation voltage stabilization source is the difference between the power supply voltage of the mobile terminal and the output voltage of the programmable power supply.
5. A current testing method applied to the current testing system according to claim 4, wherein the method comprises:
acquiring a power supply voltage of the mobile terminal;
selecting a current testing mold based on the power supply voltage of the mobile terminal;
installing the mobile terminal into the current testing die, wherein the current testing die is internally provided with an isolation voltage-stabilizing source, and different current testing dies correspond to isolation voltage-stabilizing sources with different output voltages;
the method comprises the steps that a mobile terminal is connected with a programmable power supply and an isolation voltage-stabilizing source respectively, so that the programmable power supply and the isolation voltage-stabilizing source provide a test voltage for the mobile terminal, the output voltage of the isolation voltage-stabilizing source is the difference between the power supply voltage of the mobile terminal and the output voltage of the programmable power supply, the output voltage of the programmable power supply is kept constant, and the output voltage of the programmable power supply is not greater than the power supply voltage of the mobile terminal all the time;
and acquiring the test current of the mobile terminal.
6. The method according to claim 5, wherein after the obtaining of the supply voltage of the mobile terminal, the method further comprises:
and adjusting the output voltage of the isolation voltage-stabilizing source based on the power supply voltage of the mobile terminal so that the output voltage of the isolation voltage-stabilizing source is the difference between the power supply voltage of the mobile terminal and the output voltage of the programmable power supply.
7. The method of claim 5, wherein before connecting the mobile terminal to the programmable power supply and the isolated regulator, respectively, such that the programmable power supply and the isolated regulator provide the test voltage to the mobile terminal, the method further comprises:
and setting the output voltage of the programmable power supply to a voltage value meeting the requirement of a preset low power supply voltage.
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