Modular Wireless Charging Transmitter for Interoperable Coil Modules
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Solution Overview
Problem
Existing wireless charging systems face interoperability issues, including poor efficiency and excess heat generation, when using magnetic interface systems with non-magnetic transmitters, limiting their usefulness and convenience, especially for automotive applications.
Innovation Solution
A modular wireless charging transmitter assembly system that includes an electronics module capable of selectively providing power to different types of coil modules, such as Qi-type and MagSafe® coil modules, through a DC-to-AC converter and output power interface, allowing for interchangeable coil modules with adaptive matching networks and cooling systems to ensure efficient charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a magnetic interface system is used to precisely align the wireless charging receiver with the transmitter, then positioning precision is improved, but interoperability deteriorates when used with non-magnetic transmitters
Solution Approach 1:
The wireless charging transmitter is designed with a universal interface that can work with both magnetic and non-magnetic receivers. The system includes a magnetic interface system for precise alignment and a non-magnetic interface system for broader compatibility, allowing the same transmitter to serve multiple functions and different receiver types without requiring separate devices.
2Adaptability or versatility
If a universal wireless charging transmitter is designed to work with both magnetic and non-magnetic receivers, then interoperability is improved, but system complexity increases
Solution Approach 1:
The wireless charging transmitter is divided into separate modular components: a magnetic interface system module and a non-magnetic interface system module. Each module handles a specific type of receiver, allowing the system to maintain simplicity within each module while achieving universality through the ability to support multiple modules. This segmentation reduces the complexity burden on any single component.
3Reliability
If wireless charging systems use different interface types for different devices, then device-specific optimization is improved, but ease of operation deteriorates due to limited convenience
Solution Approach 1:
The wireless charging transmitter incorporates multiple interface types (magnetic and non-magnetic) within a single device, enabling it to automatically adapt to different receiver types. Users experience enhanced convenience as they can charge various devices without needing to select or switch between different transmitter models, while each interface type maintains its device-specific optimization for reliability.
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 modular system enables efficient and versatile wireless charging across various devices and coil types, reducing heat generation and improving convenience by adapting power delivery based on connected coil modules, thus enhancing interoperability and usability.
Implementation Method 1
a DC-to-AC converter circuity configured to convert the DC power to alternating current (AC) power
Implementation Method 2
at least one coil configured to receive AC power from the electronics module
Data Source
AI summary
An electronics module is configured to provide power to one of a plurality of different types of coil modules utilized for wireless charging. The electronics module includes an input power interface configured to receive direct current (DC) power, a DC-to-AC converter circuity configured to convert the DC power to alternating current (AC) power, and an output power interface having a first set of output pins and at least a second set of output pins configured to interface with each of the plurality of different types of coil modules, wherein AC power is selectively provided to the first set of output pins, or both the first and second set of output pins based on a type of coil module connected to the electronics module.