Magnetic Core Cutaway Structure for Inductive Coupling Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional wire wound inductors are bulky and inefficient, making it difficult to create compact, efficient, and high-current output power supply circuits, which is undesirable for certain applications.
Innovation Solution
The fabrication of a circuit component with a magnetic permeable core that includes multiple electrically conductive paths and strategically placed cutaway portions to reduce inductive coupling between these paths, allowing for a monolithic structure that minimizes mutual magnetic flux and optimizes inductive coupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional wire wound inductors are used, then inductance is achieved, but the component becomes bulky and inefficient
Solution Approach 1:
The patent divides a single large inductor into multiple smaller inductive paths arranged in parallel within a shared magnetic core. This segmentation allows the power supply to achieve the required total inductance while using smaller, more efficient individual inductor structures that reduce overall volume and improve energy efficiency.
Solution Approach 2:
The patent merges multiple inductive paths into a single integrated power supply circuit with a shared magnetic core structure. This consolidation achieves high current output capability while maintaining compact size, as the shared core provides efficient magnetic flux utilization across all parallel paths.
2Volume of moving object
If multiple inductive paths are placed close together, then compact design is achieved, but inductive coupling between paths increases
Solution Approach 1:
The patent extracts or removes portions of the magnetic core material between adjacent inductive paths to create gaps. This extraction reduces the magnetic coupling between paths while maintaining the compact overall structure, as the gaps prevent excessive magnetic flux sharing between neighboring paths.
Solution Approach 2:
The patent applies different magnetic material properties to different regions of the core. Specifically, certain regions between inductive paths have reduced magnetic permeability (through gap creation) compared to other regions, allowing compact arrangement while controlling inductive coupling locally where it would be harmful.
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 approach enables the creation of compact, efficient, and high-current power supply circuits with reduced inductive coupling, facilitating smaller footprint and improved power density while allowing for vertical power flow and integration of multi-phase arrangements.
Implementation Method 1
Winding of a wire into a coil of multiple turns increases the number of respective magnetic flux lines in a respective inductor component, increasing the magnetic field and thus overall inductance of the respective inductor component.
Implementation Method 2
Presence of the cutaway portions at respective appropriate one or more locations of the circuit component reduces inductive coupling between the first electrically conductive path and the second electrically conductive path disposed in the core.
Data Source
AI summary
According to one configuration, a fabricator fabricates a core of a circuit component to include magnetic permeable material. The fabricator further produces the circuit component to include multiple electrically conductive paths extending through the core of the magnetic permeable material. In one arrangement, the multiple electrically conductive paths include a first electrically conductive path and a second electrically conductive path. The fabricator fabricates the circuit component and, more specifically, the core of the magnetic permeable material to include at least one cutaway portion operative to reduce inductive coupling between the first electrically conductive path and the second electrically conductive path disposed in the core.