Category 6 Surge Protector Circuit Topology for Low-Loss Protection
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Solution Overview
Problem
Existing surge protector circuits for telecommunications equipment fail to meet Category 6 TIA standards and lack RJ-45 connections without adding magnetic components, leading to inadequate protection against transient voltage surges.
Innovation Solution
A surge protector design featuring a printed circuit board with a unique trace layout and a reduced number of Transient Voltage Semiconductor clamping devices, utilizing steering diodes and rectifier diodes to provide low capacitance and impedance matching for Category 6 UTP cables, allowing for RJ-45 connections and high-frequency data transmission up to 250 MHz.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If known Category 5 surge protector circuits are used, then surge protection is provided, but transmission line loss limitations for Category 6 standards cannot be met
Solution Approach 1:
The patent changes the electrical parameters of the surge protector circuit by using a hybrid architecture combining series and shunt connected clamping devices, optimizing capacitance values, and adjusting impedance matching to meet Category 6 transmission loss requirements while maintaining surge protection capability
Solution Approach 2:
The patent employs a composite surge protection circuit architecture that integrates both series and shunt connected clamping devices, combining the advantages of both configurations to achieve both surge protection and transmission performance required by Category 6 standards
2Manufacturing precision
If known Category 6 surge protector circuits are used, then transmission loss control is improved, but RJ-45 jack interface connections cannot be provided
Solution Approach 1:
The patent designs a universal surge protector circuit that simultaneously provides Category 6 transmission loss control and RJ-45 jack interface connectivity, making the device adaptable to standard telecommunications infrastructure without requiring additional magnetic components
3Adaptability or versatility
If magnetic components are added to provide RJ-45 connections, then connection capability is improved, but device complexity increases
Solution Approach 1:
The patent extracts and eliminates the need for magnetic components from the surge protector design by using an alternative circuit architecture based on semiconductor clamping devices, thereby reducing device complexity while maintaining RJ-45 connection capability
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 effectively protects telecommunications equipment from over-voltage transient surges while meeting Category 6 TIA standards, reducing transmission loss, and eliminating the need for magnetic components, thus enhancing both performance and manufacturing efficiency.
Implementation Method 1
When a transient voltage exceeds the normal operating voltage of the transmission line, the clamping device will create a low-impedance path to ground so as to prevent damage to the equipment caused by the transient
Implementation Method 2
utilizing steering diodes and rectifier diodes to provide low capacitance and impedance matching for Category 6 UTP cables
Data Source
AI summary
A surge protector for protecting telecommunications related equipment and other associated sensitive electrical components from over-voltage transient occurring on tip/ring conductors of telecommunication lines coupled thereto includes a printed circuit board and a plurality of surge protection circuits being mounted on the printed circuit board. Each of the plurality of surge protection circuits includes a first set of steering diodes and a second set of steering diodes. A common transient voltage clamping device has a first end connected to a first conductor lead and a second end connected to a second conductor lead so as to be shared by the plurality of surge protection circuits. A common pair of series-connected rectifier diodes has a first end also connected to the first conductor lead and a second end also connected to the second conductor lead so as to be shared by the plurality of surge protection circuits.