Adaptor Working-State Testing for Voltage Protection Verification
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Solution Overview
Problem
Current methods for testing adaptors only perform unit tests and cannot assess the working state of an adaptor during power supply to a terminal, which can lead to safety issues such as burnout or explosion due to undervoltage or overvoltage conditions.
Innovation Solution
A method and apparatus for testing an adaptor's protection and power-supply mechanisms by sending test signals to determine the adaptor's working state based on output voltage, including threshold checks and communication protocol compliance, allowing for automated testing of the adaptor's functionality during power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If unit test is performed on the adaptor to check components, then component requirements are verified, but the working state of the adaptor during charging cannot be tested
Solution Approach 1:
The patent transforms the static unit testing approach into a dynamic working-state testing approach. The testing device simulates actual charging scenarios by dynamically interacting with the adaptor during power supply, allowing verification of protection mechanisms and power supply functionality under real operating conditions rather than just component-level static checks.
Solution Approach 2:
The testing device acts as an intermediary between the adaptor and the terminal. It couples with the adaptor's output end and simulates terminal characteristics, enabling the adaptor to be tested in a working state without requiring an actual terminal. This intermediary approach allows comprehensive functional testing while maintaining safety.
2Ease of manufacture
If the adaptor is tested during working mode, then component functionality is verified, but safety protection mechanisms cannot be evaluated under abnormal conditions
Solution Approach 1:
The testing device applies preliminary anti-action by intentionally generating abnormal conditions (overvoltage, undervoltage, communication failures) during testing. This allows the protection mechanisms to be evaluated before actual safety issues occur in real usage. The testing proactively creates failure scenarios to verify that protection mechanisms activate correctly.
Solution Approach 2:
The patent utilizes parameter changes by varying voltage parameters (overvoltage, undervoltage), current parameters, and communication parameters during testing. These parameter changes enable comprehensive evaluation of protection mechanisms under different abnormal conditions, transforming a simple working-mode test into a multi-parameter stress test that verifies safety functionality.
3Measurement precision
If manual testing methods are used, then detailed observation is possible, but automation and efficiency are reduced
Solution Approach 1:
The testing device implements self-service by automatically generating test signals, measuring voltage and current parameters, comparing results against threshold values, and determining working states without human intervention. The system autonomously completes the entire testing process, from signal generation to result analysis, significantly improving efficiency while maintaining precise measurement capabilities through automated detection circuits and processing logic.
Data Source
Figure 1A~1B
Figure 1C
Figure 2
AI summary
Provided are a method for testing function of an adaptor, an apparatus for testing function of an adaptor, a testing device, and a storage medium. The method is applicable to the testing device. The method includes the following. A test signal is sent to the adaptor (S201). Detect a first voltage (S202), where the first voltage is outputted in a preset first duration by the adaptor according to the test signal. A working state of the adaptor is determined according to the first voltage (S204,206,207).