USB Type-C PD Test Device Automatic Power Data Acquisition
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Solution Overview
Problem
Current testing methods for USB Type-C Power-Delivery (PD) devices require manual operation to switch between different test settings, making them inefficient and not automatically capable of testing the various voltage and current profiles supported by these devices.
Innovation Solution
A test device with a first connection interface coupled to the device under test (DUT) to obtain power information, a processor to store and send this information to an external controlling system via a second connection interface, allowing for automatic testing of USB Type-C PD through serial communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual operation is used to switch test settings, then the test device can test different voltage and current profiles, but the testing process is inefficient and requires continuous manual intervention
Solution Approach 1:
The test device automatically obtains power information from the DUT through the connection interface and sends it to the external controlling system without manual intervention. The system self-services by autonomously completing the information collection and transmission process, eliminating the need for continuous manual operation while maintaining comprehensive testing capability across different voltage and current profiles
Solution Approach 2:
The patent replaces manual mechanical operation with automated electronic communication. The processor automatically retrieves power information through the connection interface and transmits it via serial communication, substituting the mechanical act of manually switching test settings with an automated electronic information exchange process between the test device and external controlling system
2Productivity
If automatic testing is implemented through serial communication, then testing efficiency improves, but the device complexity increases due to additional interfaces and communication protocols
Solution Approach 1:
The connection interface serves multiple functions: it obtains power information from the DUT, transmits it to the external controlling system, and supports automated testing operations. This multi-functional design consolidates what would otherwise require separate components into a single interface, reducing overall device complexity while enabling automatic testing capability
Solution Approach 2:
The processor acts as an intermediary that manages the communication between the connection interface and the external controlling system. It automatically retrieves power information through the interface and handles the serial communication protocol, mediating the interaction in a way that simplifies the overall system architecture while enabling automated testing functionality
Data Source
AI summary
A test device and a method are provided in the invention. The test device includes a first connection interface, a storage device, a processor and a second connection interface. The first connection interface is coupled to a device under test (DUT) and obtains power information from the DUT according to a first instruction. The storage device stores the power information. The processor is coupled to the first connection interface and storage device, when the first connection interface is coupled to the DUT, sends the first instruction to the first connection interface, receives the power information from the first connection interface, and stores the power information in the storage device. The second connection interface is coupled to an external controlling system, sends the power information to the external controlling system and receives a test instruction from the external controlling system to test the DUT.