Network transformer module

Patent metadata

Field	Value
Publication number	US-10796838-B2
Application number	US-201715825679-A
Country	US
Kind code	B2
Filing date	Nov 29, 2017
Priority date	Aug 4, 2017
Publication date	Oct 6, 2020
Grant date	Oct 6, 2020

Abstract

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.

First claim

What is claimed is:

1. A network transformer module, comprising:
a first magnetic element, comprising:
a first iron core; and
a first coil winding, wound around the first iron core;
wherein the first coil winding is wound 7 to 14 turns around the first iron core;
wherein the first coil winding is composed of a first wire and a second wire; and

a second magnetic element, comprising:
a second iron core; and
a second coil winding, wound around the second iron core;

wherein the second coil winding is wound 2 to 5 turns around the second iron core;
wherein the second coil winding is composed of a third wire and a fourth wire;
wherein the first coil winding forms M layers of coil on the first iron core and M is a positive integer greater than 2;
wherein the second coil winding forms N layers of coil on the second iron core, and N is a positive integer greater than 1;
wherein the number of turns in each layer of the first coil winding is the same, and the number of turns in each layer of the second winding is the same; and
wherein a ratio of M to N is 2:1.

2. The network transformer module as claimed in claim 1 , wherein the first magnetic element is a transformer, and the second magnetic element is a common mode choke.

3. The network transformer module as claimed in claim 2 , wherein when the network transformer module is used at a network speed of 2.5G BASE-T or below, the second magnetic element is arranged between the first magnetic element and a signal input terminal.

4. The network transformer module as claimed in claim 2 , wherein when the network transformer module is used at a network speed of 2.5G BASE-T or below, the second magnetic element is arranged between the first magnetic element and a signal output terminal.

5. The network transformer module as claimed in claim 2 , wherein when the network transformer module is used at a network speed of 5G BASE-T or above, the second magnetic element is arranged between the first magnetic element and a signal input terminal and between the first magnetic element and a signal output terminal.

6. The network transformer module as claimed in claim 3 , wherein the signal input terminal is a physical side, and the signal output terminal is a cable side.

7. The network transformer module as claimed in claim 4 , wherein the signal input terminal is a physical side, and the signal output terminal is a cable side.

8. The network transformer module as claimed in claim 5 , wherein the signal input terminal is a physical side, and the signal output terminal is a cable side.

9. A network transformer module, comprising:
a first magnetic element, comprising:
a first iron core; and
a first coil winding, wound around the first iron core,
wherein the first coil winding is wound 7 to 14 turns around the first iron core,
wherein the first coil winding is composed of a first wire and a second wire; and

a second magnetic element, comprising:
a second iron core; and
a second coil winding, wound around the second iron core,

wherein the second coil winding is wound 2 to 5 turns around the second iron core,
wherein the second coil winding is composed of a third wire and a fourth wire,
wherein the first coil winding forms M layers of coil on the first iron core, and M is a positive integer greater than 2,
wherein the second coil winding forms N layers of coil on the second iron core, and N is a positive integer greater than 1, and
wherein a ratio of M to N is 2:1.

10. The network transformer module as claimed in claim 9 , wherein the first magnetic element is a transformer, and the second magnetic element is a common mode choke.

11. The network transformer module as claimed in claim 10 , wherein when the network transformer module is used at a network speed of 2.5G BASE-T or below, the second magnetic element is arranged between the first magnetic element and a signal input terminal.

12. The network transformer module as claimed in claim 10 , wherein when the network transformer module is used at a network speed of 2.5G BASE-T or below, the second magnetic element is arranged between the first magnetic element and a signal output terminal.

13. The network transformer module as claimed in claim 10 , wherein when the network transformer module is used at a network speed of 5G BASE-T or above, the second magnetic element is arranged between the first magnetic element and a signal input terminal and between the first magnetic element and a signal output terminal.

14. The network transformer module as claimed in claim 11 , wherein the signal input terminal is a physical side, and the signal output terminal is a cable side.

15. The network transformer module as claimed in claim 12 , wherein the signal input terminal is a physical side, and the signal output terminal is a cable side.

16. The network transformer module as claimed in claim 13 , wherein the signal input terminal is a physical side, and the signal output terminal is a cable side.

Assignees

• Delta Electronics Inc

Inventors

• Lai Chin-Hsin
• Lee Li-O
• Weng Chia-Kai

Classifications

• H01F19/06 Primary

  Broad-band transformers, e.g. suitable for handling frequencies well down into the audio range · CPC title

• H01F2038/006

  matrix transformer consisting of several interconnected individual transformers working as a whole · CPC title

• H01F27/24

  Magnetic cores · CPC title

• H01F27/28

  Coils; Windings; Conductive connections · CPC title

• H01F17/04

  with magnetic core · CPC title