CN203982989U - Communication device and transformer module thereof - Google Patents
Communication device and transformer module thereof Download PDFInfo
- Publication number
- CN203982989U CN203982989U CN201420342441.5U CN201420342441U CN203982989U CN 203982989 U CN203982989 U CN 203982989U CN 201420342441 U CN201420342441 U CN 201420342441U CN 203982989 U CN203982989 U CN 203982989U
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- common mode
- mode choke
- choke coil
- coil
- transformer
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Abstract
The utility model discloses a kind of transformer module, includes the first common mode choke coil, the second transformer and the second common mode choke coil; This second transformer includes magnetic core and is wrapped in primary coil and the secondary coil on magnetic core, and this first common mode choke coil connects primary coil, and this second common mode choke coil connects secondary coil; By this, be connected respectively the first common mode choke coil and the second common mode choke coil by the primary coil at the second transformer and secondary coil, coordinating utilizes the first common mode choke coil and the second common mode choke coil can suppress noise, noise inhibition scope is broadened, more effectively prevent electromagnetic interference, make signal transmission more reliable and more stable.
Description
Technical field
The utility model relates to communication field technology, refers in particular to a kind of communication device and transformer module thereof.
Background technology
While carrying out transfer of data between communication apparatus in communication system, the Telecommunication Transformers in communication apparatus can be subject to various interference, thereby the transmission of data signals between communication apparatus is produced to interference signal, thereby affects signal quality.
In communication device, include the transformer module that carries out Communication processing and noise inhibition, in prior art, transformer module primary structure includes a transformer and a common mode choke coil, this transformer is connected with common mode choke coil, when signal passes through common mode choke coil after transformer is processed again can filtering noise information, reduce electromagnetic interference.But electromagnetic interference has still exceeded regulation in the time of low frequency, noise inhibition is not obvious.
Because user is more and more higher to the requirement of signal quality, therefore, need to design a kind of noise inhibition better, electromagnetic interference also can be passed through communication device and the transformer module thereof of regulation in the time of low frequency.
Utility model content
In view of this, the utility model is for the disappearance of prior art existence, and its main purpose is to provide a kind of communication device and transformer module thereof, makes electromagnetic interference in the time of low frequency, also can pass through regulation, and the scope that noise suppresses broadens, better effects if.
For achieving the above object, the utility model adopts following technical scheme:
A kind of transformer module, includes the first common mode choke coil, the second transformer and the second common mode choke coil; This second transformer includes magnetic core and is wrapped in primary coil and the secondary coil on magnetic core, and this first common mode choke coil connects primary coil, and this second common mode choke coil connects secondary coil.
A kind of communication device, includes the first transformer, integrated IC and transformer module; This integrated IC is connected with the first common mode choke coil, and this first transformer connects integrated IC.
The utility model compared with prior art has obvious advantage and beneficial effect, particularly, and as shown from the above technical solution:
Be connected respectively the first common mode choke coil and the second common mode choke coil by the primary coil at the second transformer and secondary coil, coordinating utilizes the first common mode choke coil and the second common mode choke coil can suppress noise, noise inhibition scope is broadened, more effectively prevent electromagnetic interference, make signal transmission more reliable and more stable.
For more clearly setting forth architectural feature of the present utility model and effect, below in conjunction with accompanying drawing and specific embodiment, the utility model is elaborated.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the preferred embodiment of the utility model;
Fig. 2 is the structural representation of the transformer module of the preferred embodiment of the utility model;
Fig. 3 is the Electromagnetic Interference Test schematic diagram in the preferred embodiment of the utility model.
Accompanying drawing identifier declaration:
10, the first transformer 20, integrated IC
30, transformer module 31, the first common mode choke coil
32, the second transformer 321, magnetic core
322, primary coil 323, secondary coil
33, the second common mode choke coil.
Embodiment
Please refer to shown in Fig. 1 to Fig. 2, the concrete structure that it has demonstrated the preferred embodiment of the utility model, includes the first transformer 10, integrated IC20 and transformer module 30.
This transformer module 30, includes the first common mode choke coil 31, the second transformer 32 and the second common mode choke coil 33; This second transformer 32 includes magnetic core 321 and is wrapped in primary coil 322 and the secondary coil 323 on magnetic core, and this first common mode choke coil 31 connects primary coil 322, and this second common mode choke coil 33 connects secondary coil 323.
This first transformer 10 connects integrated IC20, this integrated IC20 while connection transformer module 30 again.Particularly, this integrated IC20 is connected with the first common mode choke coil 31.
As shown in Figure 3, it is Electromagnetic Interference Test figure of the present utility model, and it all can pass through regulation at low frequency and high frequency.
Operation principle of the present utility model is as follows: signal is after the first transformer 10 is processed, pass in integrated IC20 and process, again through the first common mode choke coil 31, this first common mode choke coil 31 can reduce a part of noise, after the second transformer 10 is processed, during through the second common mode choke coil 33, this second common mode choke coil 33 also can further reduce noise, thereby can effectively suppress noise, make electromagnetic interference in low frequency, also can pass through regulation (as shown in Figure 3).
Design focal point of the present utility model is: be connected respectively the first common mode choke coil and the second common mode choke coil by the primary coil at the second transformer and secondary coil, coordinating utilizes the first common mode choke coil and the second common mode choke coil can suppress noise, noise inhibition scope is broadened, more effectively prevent electromagnetic interference, make signal transmission more reliable and more stable.
The above, it is only preferred embodiment of the present utility model, not technical scope of the present utility model is imposed any restrictions, therefore any trickle amendment, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of technical solutions of the utility model.
Claims (2)
1. a transformer module, is characterized in that: include the first common mode choke coil, the second transformer and the second common mode choke coil; This second transformer includes magnetic core and is wrapped in primary coil and the secondary coil on magnetic core, and this first common mode choke coil connects primary coil, and this second common mode choke coil connects secondary coil.
2. a communication device, is characterized in that: include the first transformer, integrated IC and transformer module as claimed in claim 1; This integrated IC is connected with the first common mode choke coil, and this first transformer connects integrated IC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420342441.5U CN203982989U (en) | 2014-06-25 | 2014-06-25 | Communication device and transformer module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420342441.5U CN203982989U (en) | 2014-06-25 | 2014-06-25 | Communication device and transformer module thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203982989U true CN203982989U (en) | 2014-12-03 |
Family
ID=51980418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420342441.5U Active CN203982989U (en) | 2014-06-25 | 2014-06-25 | Communication device and transformer module thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203982989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901645A (en) * | 2015-05-20 | 2015-09-09 | 绵阳高新区经纬达科技有限公司 | Novel network filter circuit |
-
2014
- 2014-06-25 CN CN201420342441.5U patent/CN203982989U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901645A (en) * | 2015-05-20 | 2015-09-09 | 绵阳高新区经纬达科技有限公司 | Novel network filter circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |