Transformer Device With Partial Overlapped Sub-Traces
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Solution Overview
Problem
Existing transformers have low inductance density and Q value, limiting their applications due to structural limitations.
Innovation Solution
A transformer device with a first trace and a second trace, where the first trace has multiple sub-traces on a first layer and the second trace has additional sub-traces on the same layer adjacent to the first sub-traces and a third sub-trace on a second layer that overlaps with the first sub-traces, enhancing inductance and quality factor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a crossing structure is used for the transformer, then the device can be manufactured with simpler processes, but the inductance density becomes low
Solution Approach 1:
The patent transitions from a planar crossing structure to a three-dimensional stacked structure where traces are arranged on multiple layers. The first trace is on a first layer and the second trace is on a second layer, with partial overlapping between layers, thereby increasing inductance density without complicating the manufacturing process
2Quantity of substance
If a stack-typed structure is used for the transformer, then the inductance density increases, but the Q value becomes low
Solution Approach 1:
The patent applies different trace configurations to different local regions: the first and second traces have parallel portions for high inductance density, while the third trace is specifically designed to overlap with the first trace to provide shielding and reduce losses, thereby maintaining high Q value in critical regions while achieving high inductance density overall
3Quantity of substance
If the transformer structure is made more complex to improve inductance density, then the inductance increases, but the device complexity increases
Solution Approach 1:
The patent divides each trace into multiple segments (first trace, second trace, third trace) with specific functions. The first and second traces form the primary inductive path, while the third trace provides shielding. This segmentation allows the complex functionality to be achieved through modular, manageable components that can be manufactured using standard processes
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 partial overlapped structure increases inductance and quality factor, and the symmetric design enhances the K factor, improving the transformer's performance.
Implementation Method 1
The partial overlapped structures of the sub-traces of the transformer device enhance the inductance of the entire device
Data Source
AI summary
A transformer device includes a first trace and a second trace. The first trace includes at least one first sub-trace. The at least one first sub-trace is located on a first layer. The second trace includes at least one second sub-trace and a third sub-trace. The at least one second sub-trace is located on the first layer, and disposed adjacent to the least one first sub-trace. The third sub-trace is located on a second layer, and overlaps the at least one first sub-trace partially.