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Principle analysis of aging cabinet for power adapter

Article Source：Kinri Energy | Author：Kinri Energy | Issuing Time：2024.05.10
The purpose and process of aging testing

Power adapter is a common electronic product used to convert different voltages, currents, and other electrical energy to meet the power supply needs of electronic devices. To ensure the quality and stability of the power adapter, aging testing is required. Its purpose is to simulate a more realistic usage environment and load conditions through long-term operation under constant current and voltage conditions, and then detect the quality and performance of the power adapter.


6W WALL AC DC ADAPTER

The process of aging testing is usually divided into the following stages:

1. Initial aging stage: The power adapter begins to work continuously for a long time, lasting for 24 hours.

2. Mid stage aging stage: The duration is between 3-7 days, adjusted according to actual needs.

3. End stage aging stage: lasting for 24 hours, test the final performance indicators of the power adapter.

The structural composition of the aging cabinet

An aging cabinet is a device specifically designed for conducting aging tests on power adapters, typically consisting of the following components:

1. Thermostatic box: used to maintain a constant temperature in the testing environment.

2. Constant current source: used to control the output current of the power adapter to remain unchanged.

3. Constant voltage source: used to control the output voltage of the power adapter to remain unchanged.

4. Load: Used to simulate the load situation in the actual usage environment and detect the quality and stability of the power adapter.

5. Control system: used to control the temperature, voltage, and current parameters of the testing environment, and record the working status and performance indicators of the power adapter.

Factors affecting aging testing

Aging testing evaluates the performance and quality of power adapters by simulating their actual working environment and load conditions. Therefore, the test results are influenced by various factors, including but not limited to the following:

1. Aging time: The longer the aging time, the more accurate the test results are, but too long a testing time can also cause resource waste.

2. Testing environment: The stability and simulation accuracy of the testing environment determine the accuracy of the test results.

3. Load situation: The larger the load, the more accurate the test results are. However, if the load is too high, it can damage the stability and lifespan of the power adapter.

4. Working temperature: The test results are greatly affected by the ambient temperature, and the test environment temperature should be close to the actual operating environment temperature.

5. Testing frequency: The frequency of testing affects the stability and accuracy of the test results.

The above is the principle analysis of the power adapter aging cabinet. Power adapter aging test is an important means to ensure the quality and stability of the power adapter. Understanding the relevant principles of the power adapter aging cabinet can help to better carry out aging testing.
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