Wireless Power Testing Device With Self-Identifying Cable Connector
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Solution Overview
Problem
Current testing methods for wireless power transfer are error-prone and complex, often resulting in unreliable or dangerous outcomes due to missing or incorrect information about the wireless power receiver coil, and the risk of mixing different types of testing devices.
Innovation Solution
A testing device with a wireless power receiver coil and a cable connector that stores characteristic information, such as type, resonance frequencies, and equivalent series resistance values, which can be read by a host device to ensure accurate and safe testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual testing methods are used without stored coil information, then the testing process is simple, but the measurement precision and reliability deteriorate due to missing or incorrect coil parameters
Solution Approach 1:
The testing device stores its own coil characteristic information (inductance, resonance frequency, Q-factor) in an integrated circuit within the cable connector, allowing the device to self-identify and self-configure without external input. This eliminates manual parameter entry errors while keeping the overall system simple.
Solution Approach 2:
The cable connector acts as an intermediary component that bridges the testing device and host system. It contains an integrated circuit that automatically transmits coil parameter information to the host, serving as a mediator that eliminates the need for complex manual configuration procedures.
2Reliability
If different types of testing devices are mixed during testing, then the ease of operation increases, but the reliability deteriorates due to incompatible coil parameters
Solution Approach 1:
The host system reads coil parameter information from the cable connector's integrated circuit and uses this feedback to automatically select appropriate testing procedures and protocols. This ensures compatibility and reliability without requiring manual verification by the operator.
Solution Approach 2:
The testing device automatically provides its identification information through the integrated circuit in the cable connector, enabling the host system to self-configure the testing parameters based on the connected device's characteristics, eliminating manual device selection errors.
3Measurement precision
If detailed coil parameter information is stored and verified, then the measurement precision improves, but the loss of time increases due to additional verification steps
Solution Approach 1:
The coil characteristic information (inductance, resonance frequency, Q-factor) is pre-stored in the integrated circuit within the cable connector during manufacturing. This preliminary action eliminates the need for time-consuming manual parameter entry or measurement during each testing setup.
Solution Approach 2:
The manual process of entering and verifying coil parameters is replaced by an automatic electronic data retrieval system. The host system electronically reads the pre-stored information from the integrated circuit, substituting mechanical/manual operations with automated electronic processes that are both faster and more accurate.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables reliable and accurate testing of wireless power transfer by verifying the parameters of the receiver coil, preventing errors and ensuring compliance with standards, thereby enhancing safety and performance.
Implementation Method 1
Operation of devices that comply with Qi relies on magnetic induction between planar coils
Implementation Method 2
heat will be generated by magnetic induction in the secondary coil of the power receiver
Data Source
AI summary
A testing device for use in testing of wireless power transfer is disclosed. The testing device has a housing, a wireless power receiver coil provided in the housing, and a cable extending from the housing at a first end and having a cable connector at a second end. The cable accommodates connection wiring of the wireless power receiver coil. The cable connector comprises a data storage configured to contain characteristic information about the wireless power receiver coil.