Transformer Module Series Winding Noise Isolation
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Solution Overview
Problem
In electric field coupling power transmission systems, the challenge is to reduce the noise effect of high-voltage components on low-voltage components due to spatial constraints, which is not adequately addressed by existing transformer configurations.
Innovation Solution
A transformer module with primary and secondary winding groups connected in series or parallel, mounted on a substrate with strategically positioned input and output ports to secure a distance between high-voltage and low-voltage portions, allowing for effective separation and noise reduction, while also adjusting transformer capacity to prevent insufficient capacity issues with small transformers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If high-voltage transmission is performed to increase power transmission efficiency, then power transmission efficiency is improved, but noise generated by high-voltage portions affects low-voltage portions due to insufficient distance between components
Solution Approach 1:
The transformer is divided into multiple transformer elements (first, second, third, and fourth transformer elements) arranged in a specific spatial configuration. This segmentation allows the primary side and secondary side to be physically separated, creating distance between high-voltage and low-voltage portions while maintaining electrical connection through the transformer structure.
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement by mounting transformer elements on both upper and lower surfaces of a substrate. The primary windings are positioned on one surface while secondary windings are positioned on the opposite surface, creating vertical separation in the thickness direction that effectively isolates high-voltage and low-voltage portions.
2Length of moving object
If the thickness and size of mobile electronic appliances are reduced, then device compactness is improved, but sufficient distance cannot be secured between high-voltage and low-voltage components
Solution Approach 1:
The transformer design exploits the thickness direction (vertical dimension) for separation by positioning primary and secondary windings on opposite surfaces of the substrate. This vertical arrangement achieves effective electrical isolation while minimizing the horizontal footprint, enabling compact device design without compromising noise isolation.
Solution Approach 2:
The substrate acts as a thin film structure that physically separates high-voltage and low-voltage portions. By utilizing the substrate's thickness as the separation distance, the design achieves effective isolation in a minimal space, allowing thin-profile device construction.
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
This configuration effectively separates high-voltage and low-voltage components, reducing noise interference and ensuring sufficient transformer capacity even with small, low-profile transformers, thereby enhancing the efficiency and compactness of power reception devices.
Implementation Method 1
a first transformer element 131 and a second transformer element 132, each having a primary winding and a secondary winding
Data Source
AI summary
A circuit module equipped with a primary coil of a step-down transformer formed by primary coils of a plurality of transformer elements connected in series with each other and a secondary coil formed by secondary coils of the transformer elements connected in series with each other, includes a printed substrate on which the transformer elements are mounted in a lengthwise direction, a connection terminal coupled to a first end of the primary coil of the step-down transformer and connection terminals coupled to the secondary coil of the step-down transformer, the connection terminals are positioned such that the transformer elements are interposed therebetween. As a result, provided are a transformer module that reduces the effect of a high-voltage portion on a low-voltage portion by securing a distance between the high-voltage portion and the low-voltage portion, and a power reception device and a power transmission device equipped with the transformer module.