Network port transformer adopting electronic circuit structure to replace magnetic core coil

An electronic circuit structure and transformer technology, applied in multi-terminal pair network, frequency selection two-terminal pair network, etc., can solve the problems of a large number of manual winding coils, poor product competitiveness, high labor cost, etc., and achieve good controllability of product quality , high production efficiency and reduced labor costs

Inactive Publication Date: 2016-04-06
DONGGUAN TNK ELECTRONICS TECH CO LTD
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AI-Extracted Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to solve the problems that the existing net port transformer adopts the traditional magnetic core coil structure, which requires a large number of manual winding coils in the production process, the labor cost is high, the product competitiveness is poor, and the quality is difficult to control. The structure replaces the network port transformer of the magnetic co...
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Method used

The topology of the network port transformer can be set to be consistent with the topology of the traditional network port transformer, and the pin function a...
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Abstract

The invention provides a network port transformer adopting an electronic circuit structure to replace a magnetic core coil. The network port transformer comprises a coupling module, a filtering module and a protecting module; the coupling module is used for carrying out bidirectional coupling on high-speed network signals and isolating DC (Direct Current) signals; the coupling module adopts a capacitive coupling mode, the coupling module is provided with a plurality of groups of capacitive coupling units, and each capacitive coupling unit is respectively provided with a group of capacitance bodies; the filtering module is used for filtering high-frequency useless signals in the network signals; and the filtering module adopts a Bessel type stop band filter and/or a quasi Bessel type TRACE filtering structure. The network port transformer adopts the electronic circuit structure to achieve functions of coupling, filtration and protection of the transformer and completely replace a conventional magnetic core coil structure, and is a basic novel network port transformer which is suitable for automatic production and is low in labor cost, high in qualified rate of finished products and strong in competitiveness.

Application Domain

Frequency selective two-port networks

Technology Topic

Image

  • Network port transformer adopting electronic circuit structure to replace magnetic core coil
  • Network port transformer adopting electronic circuit structure to replace magnetic core coil
  • Network port transformer adopting electronic circuit structure to replace magnetic core coil

Examples

  • Experimental program(2)

Example Embodiment

[0040] Example 1
[0041] The present invention is a network interface transformer adopting an electronic circuit structure instead of a magnetic core coil, which includes a coupling module 1, a filtering module 2, and a protection module 3;
[0042] The coupling module is used for bidirectional coupling of high-speed network signals and isolation of DC signals;
[0043] The coupling module adopts a capacitive coupling mode, and the coupling module is provided with four groups of capacitive coupling units, and each of the capacitive coupling units is provided with a group of capacitors 1;
[0044] The filtering module is used to filter high-frequency useless signals in network signals;
[0045] The filtering module 2 adopts a Bessel type stop-band filter;
[0046] The Bessel-type stopband filter includes an inductance element and a capacitor;
[0047] The protection module 3 is used to discharge abnormal high voltage and large current, and protect secondary electronic components and circuits;
[0048] The protection module is provided with a discharge discharge circuit composed of semiconductor elements, and the discharge discharge circuit includes two groups of IC units.
[0049] The protection module is provided with a board-level tip discharge circuit on the circuit board.
[0050] The topology setting of the network port transformer is consistent with the traditional network port transformer topology, and the pin function and position of the network port transformer are consistent with the traditional transformer, which can realize rapid replacement on related complete sets of equipment;
[0051] The assembling method of the network port transformer is a DIP method, and the three major functional modules of the network port transformer are packaged in a transformer housing with multiple pins.

Example Embodiment

[0052] Example 2
[0053] The present invention is a network interface transformer adopting an electronic circuit structure instead of a magnetic core coil, which includes a coupling module 1, a filter module, and a protection module 3;
[0054] The coupling module is used for bidirectional coupling of high-speed network signals and isolation of DC signals;
[0055] The coupling module adopts a capacitive coupling mode, and the coupling module is provided with four groups of capacitive coupling units, and each of the capacitive coupling units is provided with a group of capacitors 1;
[0056] The filtering module is used to filter high-frequency useless signals in network signals;
[0057] The filtering module adopts a quasi-Bessel type TRACE filtering structure;
[0058] Described quasi-Bessel type TRACE filtering structure adopts the circuit structure on the PCB board to realize the function of Bessel type stop-band filter, and described quasi-Bessel type TRACE filtering structure is provided with convoluted trace 21 and realizes inductive element function, and described quasi-Bessel type In the TRACE filter structure, copper foil 23 is provided on the upper and lower layers of the stacked layer 22 on the PCB to realize the function of the capacitor.
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Description & Claims & Application Information

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