Ellipsoid Racetrack Magnetic Core for High-Speed RJ45 Isolation
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Solution Overview
Problem
Conventional isolating magnetic devices cannot handle high-speed communications beyond 2 million bits per second and are not backward compatible with standard RJ45 type connector formats, failing to effectively manage DC current imbalances and electromagnetic interference at higher data transmission speeds.
Innovation Solution
An isolating magnetic device with a core shaped like an ellipsoid and racetrack cross-section, where four pairs of wires are wound around the core, allowing for communication speeds up to 10 gigabits per second while maintaining backward compatibility with standard RJ45 configurations, combined with a common mode choke for enhanced interference handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional isolating magnetic devices are used, then backward compatibility with standard RJ45 connectors is maintained, but they cannot handle high-speed communications beyond 2 million bits per second
Solution Approach 1:
The patent changes the geometric parameters of the magnetic core from a conventional circular cross-section to an ellipsoid with racetrack cross-section. This parameter change allows the core to handle higher magnetizing forces and DC current biases while maintaining the ability to process high-speed communications up to 10 gigabits per second, resolving the contradiction between speed and reliability
Solution Approach 2:
The patent employs composite magnetic core structures with specific geometric configurations that combine properties to handle both high-speed signals and DC current biases. The unique ellipsoid-racetrack cross-section creates a composite magnetic path that simultaneously supports high-frequency communications and provides isolation for DC offsets, achieving both high speed capability and reliable handling
2Object-affected harmful factors
If prior art magnetic devices are used, then DC current imbalances can be handled, but they cannot physically handle the magnetizing force induced by imbalanced DC current at high frequencies
Solution Approach 1:
The patent modifies the magnetic core geometry parameters, specifically using an ellipsoid with racetrack cross-section, which increases the core's capacity to handle magnetizing forces. This geometric parameter change allows the core to withstand the higher magnetizing forces generated by imbalanced DC currents at high frequencies while continuing to effectively handle DC current imbalances
3Speed
If high-speed communication capability is implemented, then data transmission speed increases, but compatibility with standard RJ45 connector formats is lost
Solution Approach 1:
The patent designs an isolating magnetic device with a unique ellipsoid-racetrack cross-section that serves multiple functions: it maintains compatibility with standard RJ45 connector formats while simultaneously enabling high-speed communications up to 10 gigabits per second. This multi-functional design allows the same device structure to support both legacy and high-speed communication standards
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 solution enables efficient handling of high-speed communications up to 10 gigabits per second while being backward compatible with existing standards, effectively managing DC current imbalances and electromagnetic interference within standard RJ45 connectors.
Implementation Method 1
an isolating magnetic device is used in the female connector portion to handle direct current ('DC') offsets
Implementation Method 2
combined with a common mode choke for enhanced interference handling
Data Source
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AI summary
An electric device capable of handling high speed data communication and which could be used with, for example, a connector application such as an RJ45 type connector. The electric device is formed by inserting at least one wire through a first hole in a core, wrapping the wire around a side of the core, and inserting the wire through a second hole in the core a desired number of times. A common mode choke may be combined with the electric device. To form such a choke, two of the wires from the electric device may be wrapped around a second core in the same fashion a desired number of times.