Integrated Magnetic Module for Current Balancing
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Solution Overview
Problem
The existing layout of magnetic elements such as transformers and inductors on system boards is inefficient, leading to increased space occupation, unbalanced current paths, high impedance, and elevated temperatures due to long current paths and inconsistent current paths, which hinder miniaturization and high-power development in electronic devices.
Innovation Solution
An integrated magnetic module is proposed, comprising two transformers and an inductor, with the transformers placed on separate auxiliary circuit boards and the inductor positioned between them, electrically connected to both boards, to achieve current balancing and reduce impedance and temperature by shortening current paths and integrating components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If magnetic elements (transformers and inductors) are separately disposed on the system board, then each component can be independently designed and manufactured, but the layout space occupied is large and space utilization is low
Solution Approach 1:
The patent merges multiple magnetic elements (transformers T1, T2 and inductor L1) onto a single auxiliary circuit board, integrating them into one unified structure. This combining approach reduces the total layout space on the system board while maintaining independent manufacturability of the auxiliary board as a separate module.
Solution Approach 2:
The auxiliary circuit board containing multiple magnetic elements is nested within or mounted on the system board, creating a hierarchical structure. This nesting allows the complex multi-component assembly to be packaged in a compact form factor that fits within the system board's available space.
2Adaptability or versatility
If magnetic elements are separately disposed on the system board, then component placement is flexible, but current paths become inconsistent and unbalanced
Solution Approach 1:
By combining transformers T1, T2 and inductor L1 on the same auxiliary circuit board, the patent creates symmetric and consistent current paths between the components. The auxiliary board's internal layout ensures equal path lengths and balanced impedance, eliminating the current unbalance issue while preserving placement flexibility at the system board level.
3Ease of operation
If current paths are long and go through the system board, then component connectivity is achieved, but impedance increases and power loss increases
Solution Approach 1:
The patent extracts the magnetic elements from the system board and relocates them to a dedicated auxiliary circuit board. This extraction creates shorter, more direct current paths that bypass the system board's lengthy traces, thereby reducing impedance and minimizing power loss while maintaining full connectivity among components.
4Device complexity
If multiple currents are collected to the system board, then centralization is achieved, but the system board temperature becomes too high
Solution Approach 1:
The patent extracts the high-current magnetic components from the system board and places them on a separate auxiliary circuit board. This extraction redistributes the thermal load, preventing excessive temperature rise on the system board while maintaining centralized current collection functionality through the auxiliary board's internal connections.
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 integrated module balances currents, reduces power loss and temperature, enhances space utilization, and simplifies assembly by integrating components, facilitating miniaturization and high-power development in electronic devices.
Implementation Method 1
the transformer is a magnetic element that transfers electric energy from one circuit to another through coils in order to regulate the voltage
Implementation Method 2
the inductor is usually electrically connected with the transformer for filtering signals
Data Source
AI summary
An integrated magnetic module includes a first auxiliary circuit board, a second auxiliary circuit board, a first transformer, a second transformer and at least one inductor. The second auxiliary circuit board and the first auxiliary circuit board are arranged side by side. The first transformer is disposed on the first auxiliary circuit board. The second transformer is disposed on the second auxiliary circuit board. The at least one inductor is arranged between the first transformer and second transformer, and electrically connected with the first auxiliary circuit board and the second auxiliary circuit board.