Network Transformer Module Winding Optimization for High Speed Signal Integrity
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Solution Overview
Problem
Existing network transformer modules operate below 1G BASE-T, limiting bandwidth and causing packet transmission failures in higher speed network environments, necessitating a solution for stable signal transmission and noise suppression at increased speeds.
Innovation Solution
A network transformer module comprising a transformer and a common mode choke with specific coil winding configurations around iron cores, allowing for adjustable turns and layers to optimize inductance and bandwidth according to network speed, with the common mode choke strategically placed between signal input/output terminals based on speed requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If existing network transformer modules are used, then signal transmission and noise suppression are achieved, but bandwidth is limited and packet transmission fails in high-speed networks
Solution Approach 1:
The patent changes the winding parameters of the transformer and common mode choke, specifically setting the transformer winding turns to 7-14 turns and common mode choke winding turns to 2-5 turns. These parameter adjustments optimize the inductance and bandwidth characteristics to enable stable operation at 2.5G BASE-T and higher speeds while maintaining packet transmission reliability
Solution Approach 2:
The patent provides different embodiment configurations that can be dynamically selected based on network speed requirements. For 2.5G BASE-T or below, the common mode choke is placed between the first magnetic element and signal input/output terminals. For 5G BASE-T or above, additional common mode chokes are added in series, creating a scalable dynamic configuration that adapts to different speed requirements
2Object-affected harmful factors
If coil winding turns are increased, then inductance increases for better noise suppression, but bandwidth decreases limiting high-speed operation
Solution Approach 1:
The patent optimizes the winding turn parameters to achieve a balance between inductance and bandwidth. The transformer uses 7-14 turns and the common mode choke uses 2-5 turns, which provides sufficient inductance for noise suppression at high speeds without excessive bandwidth limitation. This parameter optimization enables the module to operate reliably at 2.5G BASE-T and higher speeds
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
Enables stable signal transmission and noise suppression across varying network speeds by optimizing coil winding configurations, preventing bandwidth limitations and packet transmission failures, thereby ensuring reliable data transfer.
Implementation Method 1
The first coil winding winds around the first iron core, and is composed of a first wire and a second wire. The first coil winding is wound 7 to 14 turns around the first iron core.
Implementation Method 2
The second coil winding is wound around the second iron core, and is composed of a third wire and a fourth wire. The second coil winding is wound 2 to 5 turns around the second iron core.
Data Source
AI summary
A network transformer module includes a first magnetic element and a second magnetic element. The first magnetic element includes a first iron core and a first coil winding. The first coil winding is composed of a first wire and a second wire, and is wrapped 7 to 14 turns around the first iron core. The second magnetic element includes a second iron core and a second coil winding. The second coil winding is composed of a third wire and a fourth wire, and is wrapped 2 to 5 turns around the second iron core.