Balanced Unbalanced Converter Disconnection Inspection
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Solution Overview
Problem
Conventional balanced/unbalanced converters face challenges in performing disconnection inspections due to complex structures, particularly because the open end of the second strip line prevents direct electrical connection to a terminal, making it difficult to detect disconnections in the strip lines.
Innovation Solution
A balanced/unbalanced converter design where the outer circumferential ends of the first and second strip lines are electrically connected to unbalanced and open terminals respectively, allowing for a simple configuration that enables disconnection inspections, and optionally featuring opposite winding directions for the conductors to inhibit electromagnetic coupling and simplify the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the other end of the second strip line is electrically connected to a terminal to enable disconnection inspection, then the disconnection inspection can be performed, but the structure becomes complicated
Solution Approach 1:
The patent merges the functions of the first and second strip lines by electrically connecting their other ends together, forming a common connection point that serves both lines. This eliminates the need for separate terminal connections for each strip line, enabling disconnection inspection while maintaining structural simplicity.
Solution Approach 2:
The common connection point where the other ends of the first and second strip lines are connected serves multiple functions: it acts as a shared electrical connection for both strip lines and as an accessible terminal for disconnection inspection, thereby providing multi-functionality without adding structural complexity.
2Adaptability or versatility
If the first strip line and second strip line are electromagnetically coupled, then the converter function is achieved, but the characteristics deteriorate
Solution Approach 1:
The patent introduces asymmetry by winding the first and second conductors in opposite directions. This asymmetric configuration causes the electromagnetic coupling effects to cancel each other out, preventing characteristic deterioration while still allowing the strip lines to perform their converter function.
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 design facilitates a straightforward disconnection inspection process while maintaining or improving the converter's characteristics by simplifying the connection between conductors and terminals, and relaxing line-and-space restrictions for easier conductor formation.
Implementation Method 1
a third strip line that is electromagnetically coupled with the first strip line, and a fourth strip line that is electromagnetically coupled with the second strip line
Data Source
AI summary
Provided is a balanced/unbalanced converter (1) that includes a first strip line (40), a second strip line (41), a third strip line (42), a fourth strip line (43), an unbalanced terminal (4), and an open terminal (7). The first strip line (40) includes a spiral first conductor (19), and the second strip line (41) includes a spiral second conductor (14). An outer circumferential end (19b) of the first conductor (19) is electrically connected to the unbalanced terminal (4), and an outer circumferential end (14a) of the second conductor (14) is electrically connected to the open terminal (7).