CN114264911B - Power amplifier reliability test method and test system - Google Patents
Power amplifier reliability test method and test system Download PDFInfo
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- CN114264911B CN114264911B CN202210202967.2A CN202210202967A CN114264911B CN 114264911 B CN114264911 B CN 114264911B CN 202210202967 A CN202210202967 A CN 202210202967A CN 114264911 B CN114264911 B CN 114264911B
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Abstract
The invention discloses a method and a system for testing the reliability of a power amplifier, which comprises the following steps: randomly extracting a power amplifier from the power amplifier to be tested for consistency test, performing temperature reliability test on the power amplifier which passes the consistency test in the extracted power amplifier, and performing performance stability test on the power amplifier which passes the temperature reliability test to obtain stability deviation; randomly extracting power amplifiers with set proportion from the standard performance stability test group, carrying out limit performance stability test, randomly extracting power amplifiers with set proportion from the limit performance stability test group, carrying out standard performance stability test, if the limit performance stability of the power amplifiers is reliable and the standard performance stability of the power amplifiers is reliable, the performance of the power amplifiers is reliable, otherwise, the performance of the power amplifiers is unreliable. The invention can effectively carry out accurate and digital test on the power amplifier to be tested, and improves the efficiency of reliability test.
Description
Technical Field
The invention relates to the field of communication, in particular to a method and a system for testing the reliability of a power amplifier.
Background
Generally, the chip needs to be fully tested in the development process. The existing reliability test of the chip is to test whether the module to be tested has quality problems or not in the test process, the function check is needed according to the requirement, the test is repeated for multiple times until the reliability test is completed, the existing test process is very complicated, the workload of a tester is large, and the reliability test is difficult to keep being accurately controlled for a long time, so how to more efficiently and accurately complete the reliability test of the chip is the subject to be researched by the current researcher.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for testing the reliability of a power amplifier, which comprises the following steps:
step one, randomly extracting power amplifiers with set proportion from power amplifiers to be tested, carrying out consistency test on the extracted power amplifiers to obtain the proportion of the power amplifiers which pass the consistency test in the extracted power amplifiers, judging whether the consistency of the power amplifiers to be tested is qualified or not according to the obtained proportion, if so, entering step two, and otherwise, re-selecting the power amplifiers to be tested;
step two, performing temperature reliability test on the power amplifiers which pass the consistency test in the extracted power amplifiers to obtain the temperature difference value of each power amplifier in the standby state, if the temperature difference value is within the set temperature difference value threshold, passing the temperature reliability test, and entering step three, otherwise, failing the temperature reliability test;
step three, performing performance stability test on the power amplifier passing the temperature reliability test, randomly dividing the power amplifier passing the temperature reliability test into a standard performance stability test group and a limit performance stability test group, and performing standard performance stability test on the standard performance stability test group to obtain standard performance stability; carrying out limit performance stability test on the limit performance stability test group to obtain limit performance stability, and obtaining stability deviation according to the difference value of the standard performance stability and the limit performance stability;
step four, randomly extracting power amplifiers with set proportion from the standard performance stability test group, carrying out limit performance stability test to obtain second limit performance stability, obtaining second stability deviation according to the difference value of the second limit performance stability and the limit performance stability, if the second stability deviation is within the stability deviation, the limit performance stability of the power amplifier is reliable, otherwise, the limit performance stability of the power amplifier is unreliable;
step five, randomly extracting power amplifiers with set proportion from the limit performance stability test group, carrying out standard performance stability test to obtain second standard performance stability, obtaining third stability deviation according to the difference value of the second standard performance stability and the standard performance stability, if the third stability deviation is within the stability deviation, the standard performance stability of the power amplifiers is reliable, otherwise, the standard performance stability of the power amplifiers is unreliable;
and step six, if the stability of the limit performance of the power amplifier is reliable and the stability of the standard performance of the power amplifier is reliable, the performance of the power amplifier is reliable, and if not, the performance of the power amplifier is unreliable.
Preferably, the conformance test comprises: and testing the power amplifier to be tested through the test signal to obtain the temperature rise rate and the amplification deviation of the power amplifier within the test duration, wherein if the temperature rise rate is within the set temperature rise rate threshold and the amplification deviation is within the set deviation threshold, the consistency test is passed, and if not, the consistency test is not passed.
Preferably, a temperature reliability test is performed on a power amplifier that passes a consistency test among the extracted power amplifiers, and a temperature difference value of each power amplifier in a standby state is obtained, where the temperature difference value is: and when the power amplifier is in a standby state, the temperature of the power amplifier changes within the temperature reliability test time length.
Preferably, the standard performance stability is as follows: and under the set standard power, in the standard performance stability test duration, the ratio of the number of power amplifiers which do not have faults to the number of power amplifiers for performing the standard performance stability test.
Preferably, the ultimate performance stability is as follows: and under the set limit power, in the limit performance stability test time length, the ratio of the number of the power amplifiers which do not have faults to the number of the power amplifiers for carrying out the limit performance stability test.
The power amplifier reliability test system applying the power amplifier reliability test method comprises a data processor, a data memory, a temperature monitoring module, a signal generating module, a fault monitoring device, a power supply module and a display module; the data memory, the temperature monitoring module, the signal generating module, the fault monitoring device, the power supply module and the display module are respectively connected with the data processor;
the temperature monitoring module is used for monitoring the temperature of the power amplifier in the test process; the signal monitoring module is used for monitoring the output signal of the power amplifier in the test process; the signal generating module is used for generating a test signal; the fault monitoring device is used for monitoring whether the power amplifier has faults or not; the power supply module is used for supplying power to the testing device; the display module is used for displaying related data.
The invention has the beneficial effects that: the invention can effectively carry out accurate and digital test on the power amplifier to be tested, and improves the efficiency of reliability test.
Drawings
FIG. 1 is a flow chart illustrating a method for testing reliability of a power amplifier;
fig. 2 is a schematic diagram of a power amplifier reliability testing system.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
For the purpose of making the object, technical solution and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention. It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
As shown in fig. 1, a method for testing reliability of a power amplifier includes the following steps:
step one, randomly extracting power amplifiers with set proportion from power amplifiers to be tested, carrying out consistency test on the extracted power amplifiers to obtain the proportion of the power amplifiers which pass the consistency test in the extracted power amplifiers, judging whether the consistency of the power amplifiers to be tested is qualified or not according to the obtained proportion, if so, entering step two, and otherwise, re-selecting the power amplifiers to be tested;
step two, performing temperature reliability test on the power amplifiers which pass the consistency test in the extracted power amplifiers to obtain the temperature difference value of each power amplifier in the standby state, if the temperature difference value is within the set temperature difference value threshold, passing the temperature reliability test, and entering step three, otherwise, failing the temperature reliability test;
step three, performing performance stability test on the power amplifier passing the temperature reliability test, randomly dividing the power amplifier passing the temperature reliability test into a standard performance stability test group and a limit performance stability test group, and performing standard performance stability test on the standard performance stability test group to obtain standard performance stability; carrying out limit performance stability test on the limit performance stability test group to obtain limit performance stability, and obtaining stability deviation according to the difference value of the standard performance stability and the limit performance stability;
step four, randomly extracting power amplifiers with set proportion from the standard performance stability test group, carrying out limit performance stability test to obtain second limit performance stability, obtaining second stability deviation according to the difference value of the second limit performance stability and the limit performance stability, if the second stability deviation is within the stability deviation, the limit performance stability of the power amplifier is reliable, otherwise, the limit performance stability of the power amplifier is unreliable;
step five, randomly extracting power amplifiers with set proportion from the limit performance stability test group, carrying out standard performance stability test to obtain second standard performance stability, obtaining third stability deviation according to the difference value of the second standard performance stability and the standard performance stability, if the third stability deviation is within the stability deviation, the standard performance stability of the power amplifiers is reliable, otherwise, the standard performance stability of the power amplifiers is unreliable;
and step six, if the stability of the limit performance of the power amplifier is reliable and the stability of the standard performance of the power amplifier is reliable, the performance of the power amplifier is reliable, and if not, the performance of the power amplifier is unreliable.
The consistency test comprises the following steps: and testing the power amplifier to be tested through the test signal to obtain the temperature rise rate and the amplification deviation of the power amplifier within the test duration, wherein if the temperature rise rate is within the set temperature rise rate threshold and the amplification deviation is within the set deviation threshold, the consistency test is passed, and if not, the consistency test is not passed.
Performing a temperature reliability test on the power amplifier which passes the consistency test in the extracted power amplifiers to obtain a temperature difference value of each power amplifier in a standby state, wherein the temperature difference value is as follows: and when the power amplifier is in a standby state, the temperature of the power amplifier changes within the temperature reliability test time length.
The standard performance stability is as follows: and under the set standard power, in the standard performance stability test duration, the ratio of the number of power amplifiers which do not have faults to the number of power amplifiers for performing the standard performance stability test.
The stability of the ultimate performance is as follows: and under the set limit power, in the limit performance stability test time length, the ratio of the number of the power amplifiers which do not have faults to the number of the power amplifiers for carrying out the limit performance stability test.
As shown in fig. 2, the power amplifier reliability testing system applying the power amplifier reliability testing method includes a data processor, a data storage, a temperature monitoring module, a signal generating module, a fault monitoring device, a power supply module, and a display module; the data memory, the temperature monitoring module, the signal generating module, the fault monitoring device, the power supply module and the display module are respectively connected with the data processor;
the temperature monitoring module is used for monitoring the temperature of the power amplifier in the test process; the signal monitoring module is used for monitoring the output signal of the power amplifier in the test process; the signal generating module is used for generating a test signal; the fault monitoring device is used for monitoring whether the power amplifier has faults or not; the power supply module is used for supplying power to the testing device; the display module is used for displaying related data.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. A method for testing reliability of a power amplifier is characterized by comprising the following steps:
step one, randomly extracting power amplifiers with set proportion from power amplifiers to be tested, carrying out consistency test on the extracted power amplifiers to obtain the proportion of the power amplifiers which pass the consistency test in the extracted power amplifiers, judging whether the consistency of the power amplifiers to be tested is qualified or not according to the obtained proportion, if so, entering step two, and otherwise, re-selecting the power amplifiers to be tested;
step two, performing temperature reliability test on the power amplifiers which pass the consistency test in the extracted power amplifiers to obtain the temperature difference value of each power amplifier in the standby state, if the temperature difference value is within the set temperature difference value threshold, passing the temperature reliability test, and entering step three, otherwise, failing the temperature reliability test;
step three, performing performance stability test on the power amplifier passing the temperature reliability test, randomly dividing the power amplifier passing the temperature reliability test into a standard performance stability test group and a limit performance stability test group, and performing standard performance stability test on the standard performance stability test group to obtain standard performance stability; carrying out limit performance stability test on the limit performance stability test group to obtain limit performance stability, and obtaining stability deviation according to the difference value of the standard performance stability and the limit performance stability; the standard performance stability is as follows: under the set standard power, in the standard performance stability test duration, the ratio of the number of power amplifiers which do not have faults to the number of power amplifiers for performing the standard performance stability test; the stability of the ultimate performance is as follows: under the set limit power, in the limit performance stability test duration, the ratio of the number of power amplifiers which do not have faults to the number of power amplifiers for carrying out the limit performance stability test;
step four, randomly extracting power amplifiers with set proportion from the standard performance stability test group, carrying out limit performance stability test to obtain second limit performance stability, obtaining second stability deviation according to the difference value of the second limit performance stability and the limit performance stability, if the second stability deviation is within the stability deviation, the limit performance stability of the power amplifier is reliable, otherwise, the limit performance stability of the power amplifier is unreliable;
step five, randomly extracting power amplifiers with set proportion from the limit performance stability test group, carrying out standard performance stability test to obtain second standard performance stability, obtaining third stability deviation according to the difference value of the second standard performance stability and the standard performance stability, if the third stability deviation is within the stability deviation, the standard performance stability of the power amplifiers is reliable, otherwise, the standard performance stability of the power amplifiers is unreliable;
and step six, if the stability of the limit performance of the power amplifier is reliable and the stability of the standard performance of the power amplifier is reliable, the performance of the power amplifier is reliable, and if not, the performance of the power amplifier is unreliable.
2. The method as claimed in claim 1, wherein the conformance test comprises: and testing the power amplifier to be tested through the test signal to obtain the temperature rise rate and the amplification deviation of the power amplifier within the test time, wherein if the temperature rise rate is within the set temperature rise rate threshold and the amplification deviation is within the set deviation threshold, the consistency test is passed, and if not, the consistency test is not passed.
3. The method according to claim 1, wherein a temperature reliability test is performed on a power amplifier that passes the consistency test among the extracted power amplifiers to obtain a temperature difference value of each power amplifier in a standby state, where the temperature difference value is: and when the power amplifier is in a standby state, the temperature of the power amplifier changes within the temperature reliability test time.
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