CN105471273A - Ethernet interface transformer achieved through PCB - Google Patents
Ethernet interface transformer achieved through PCB Download PDFInfo
- Publication number
- CN105471273A CN105471273A CN201610017647.4A CN201610017647A CN105471273A CN 105471273 A CN105471273 A CN 105471273A CN 201610017647 A CN201610017647 A CN 201610017647A CN 105471273 A CN105471273 A CN 105471273A
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- CN
- China
- Prior art keywords
- module
- pcb board
- net mouth
- mouth transformer
- coupling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
- H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
- H02M5/06—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using impedances
- H02M5/08—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using impedances using capacitors only
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Filters And Equalizers (AREA)
Abstract
The invention provides an ethernet interface transformer achieved through a PCB. The ethernet interface transformer comprises a PCB body, wherein a coupling module, a filtering module and a protecting module are built on the PCB body; the coupling module, the filtering module and the protecting module are built by a PCB circuit structure; the coupling module is used for carrying out two-way coupling on a high-speed network signal and isolating a direct current signal; a capacitive coupling way is adopted by the coupling module; the coupling module is provided with multiple groups of capacitive coupling units; each capacitive coupling unit is provided with a group of capacitor bodies; and the capacitor bodies of the capacitive coupling units are in a PCB circuit structure, and particularly are capacitor bodies achieved by arranging copper or tin foil at the upper layer and the lower layer of a stack-up layer on the PCB. The coupling module, the filtering module and the protecting module of the ethernet interface transformer are built by the circuit structure on the PCB; and the ethernet interface transformer is simple in structure, few in production procedures, high in integration level and applicable to automatic production.
Description
Technical field
The present invention relates to communication equipment field, particularly a kind ofly realize the coupling of net mouth transformer, filtering, protection three zones by the circuit structure on pcb board, the net mouth transformer that electronic component is circuit, belongs to the electronic technology that a kind of basis is novel.
Background technology
Be an age that communication is highly developed now, society steps into cybertimes, and wherein, very important effect is played in the raising of network technology level and the update of the network equipment especially.
In Internet Transmission; outside netting twine all can be connected a net mouth transformer with between router or other internal electronic equipment; this transformer mainly realizes isolation coupling, filtering, defencive function; existing net mouth transformer is generally traditional magnetic core coil structure; as Fig. 1, the processing step of this kind of transformer is:
1) hand wound's core transformers T1;
2) hand wound's magnetic core common mode inhibition device T2;
3) artificial hanging wire is on transformer case wiring pin;
4) human weld's transformer case wiring pin;
5) varnish is put;
6) toast transformer and make varnish exsiccation solidification;
7) test.
Its weak point has: need a large amount of hand wound's transformer magnetic coil winding, cost of labor is high, and efficiency is low, and product competitiveness is poor; Artificial production makes quality of finished be difficult to management and control simultaneously, causes fraction defective high.
Summary of the invention
The object of the invention is to adopt traditional magnetic core coil structure for existing net mouth transformer; a large amount of hand wound's coil is needed in production process; cost of labor is high, and product competitiveness is poor, and quality is difficult to the deficiency of management and control; a kind of net mouth transformer realized by pcb board is provided; the coupling module of this net mouth transformer, filter module, protection module are built by the circuit structure on pcb board, and be that a kind of structure is simple, production process is few; integrated level is high, is applicable to the net mouth transformer of automated production.
In order to solve above-mentioned prior art problem, technical scheme of the present invention is.
A kind of net mouth transformer realized by pcb board of the present invention, it comprises a pcb board body, described pcb board body is built with coupling module, filter module, protection module;
As improvement, described coupling module, filter module, protection module are built by pcb board circuit structure;
Described coupling module is used for carrying out bidirectional coupled and isolated DC signal to express network signal;
As improvement, described coupling module adopts capacitive coupling mode, and described coupling module is provided with organizes capacitive coupling element more, and described capacitive coupling element is respectively provided with one group of capacitance body;
As improvement, the capacitance body of described capacitive coupling element is a pcb board circuit structure, and the aspect being up and down specially the folded structure layer on pcb board arranges the capacitance body that copper or tinfoil paper realize;
Described filter module is used for the high frequency unwanted signal in screen signal;
Described filter module adopts intends Bessel type TRACE filter structure;
Described plan Bessel type TRACE filter structure adopts the circuit structure on pcb board to realize the function of Bessel type stop-band filter, described plan Bessel type TRACE filter structure is provided with convolution cabling and realizes inductance element function, and the aspect up and down of the folded structure layer of described plan Bessel type TRACE filter structure on pcb board arranges copper or tinfoil paper realizes capacitance body function;
Described protection module is used for releasing to the high voltage of exception and big current, protecting secondary electron element and circuit;
As improvement, described protection module is provided with a vent discharge circuit be made up of semiconductor element, and described vent discharge circuit comprises many group IC unit;
As improvement, described protection module is provided with plate level point discharge circuit on circuit boards.
As improvement, all resistance of described coupling module, filter module, protection module are realized by the circuit structure on pcb board.
The input of described net mouth transformer and output are directly realized by the circuit output end on pcb board and input;
The topology of described net mouth transformer can be arranged and traditional net mouth transformer topological coherence, or inconsistent with traditional net mouth transformer topology;
Be embedded in the pcb board body of parent module or module at the same level after the pcb board body of described net mouth transformer can build separately, or the integration on the pcb board body of parent module or module at the same level of the pcb board body of described net mouth transformer builds.
A kind of net mouth transformer realized by pcb board of the present invention, its beneficial effect has:
1, pass through the coupling of the circuit realiration net mouth transformer built on pcb board, filtering, defencive function, structure is simpler, and production process is few, and human cost is low, is more suitable for automated production;
2, good, the stay in grade of product quality controllability, production efficiency is high;
3, product forms primarily of a pcb board, is more conveniently transplanted to parent or module at the same level;
4, relative to adopting magnetic core coil structure or adopting the net mouth transformer more excellent performance of electric circuit construction, be high, the technology-intensive high-tech product of a kind of integrated level.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of traditional net mouth transformer;
Fig. 2, the general frame figure of the net mouth transformer realized by pcb board for the present invention is a kind of;
Fig. 3, the circuit diagram of the coupling module of the net mouth transformer realized by pcb board for the present invention is a kind of;
Fig. 4, the circuit diagram of the plan Bessel type TRACE filter structure of the net mouth transformer realized by pcb board for the present invention is a kind of;
Fig. 5, the circuit diagram of the protection module of the net mouth transformer realized by pcb board for the present invention is a kind of;
Fig. 6, the schematic diagram of the convolution cabling of the plan Bessel type TRACE filter structure of the net mouth transformer realized by pcb board for the present invention is a kind of;
Fig. 7, the schematic diagram of the capacitance body function in the coupling module of the net mouth transformer realized by pcb board for the present invention is a kind of and filter module;
Fig. 8, the IC application schematic diagram of the protection module of the net mouth transformer realized by pcb board for the present invention is a kind of;
Fig. 9, the IC internal structure circuit diagram of the protection module of the net mouth transformer realized by pcb board for the present invention is a kind of.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
Embodiment
A kind of net mouth transformer realized by pcb board of the present invention, it comprises a pcb board body, described pcb board body is built with coupling module 1, filter module 2, protection module 3;
Described coupling module, filter module, protection module are built by pcb board circuit structure;
Described coupling module is used for carrying out bidirectional coupled and isolated DC signal to express network signal;
Described coupling module adopts capacitive coupling mode, and described coupling module is provided with four groups of capacitive coupling element, and described capacitive coupling element is respectively provided with one group of capacitance body 11;
The capacitance body of described capacitive coupling element is a pcb board circuit structure, and the aspect being up and down specially the folded structure layer 22 on pcb board arranges the capacitance body that Copper Foil 23 realizes;
Described filter module is used for the high frequency unwanted signal in screen signal;
Described filter module adopts intends Bessel type TRACE filter structure;
Described plan Bessel type TRACE filter structure adopts the circuit structure on pcb board to realize the function of Bessel type stop-band filter, described plan Bessel type TRACE filter structure is provided with convolution cabling and realizes inductance element function, and the aspect up and down of the folded structure layer 22 of described plan Bessel type TRACE filter structure on pcb board arranges Copper Foil 23 and realizes capacitance body function;
Described protection module is used for releasing to the high voltage of exception and big current, protecting secondary electron element and circuit;
Described protection module is provided with a vent discharge circuit be made up of semiconductor element, and described vent discharge circuit comprises two groups of IC unit;
Described protection module is provided with plate level point discharge circuit on circuit boards.
All resistance of described coupling module, filter module, protection module are realized by the circuit structure on pcb board.
The input of described net mouth transformer and output are directly realized by the circuit output end on pcb board and input;
The topology of described net mouth transformer can be arranged and traditional net mouth transformer topological coherence;
Be embedded in the pcb board body of parent module after the pcb board body of described net mouth transformer builds separately.
Below the present invention be described in detail, the above, be only the preferred embodiment of the present invention, when not limiting the scope of the present invention, namely allly does impartial change according to the application's scope and modify, all should still belong in covering scope of the present invention.
Claims (7)
1. by the net mouth transformer that pcb board realizes, it is characterized in that, it comprises a pcb board body, described pcb board body is built with coupling module, filter module, protection module;
Described coupling module, filter module, protection module are built by pcb board circuit structure;
Described coupling module is used for carrying out bidirectional coupled and isolated DC signal to express network signal;
Described coupling module adopts capacitive coupling mode, and described coupling module is provided with organizes capacitive coupling element more, and described capacitive coupling element is respectively provided with one group of capacitance body;
The capacitance body of described capacitive coupling element is a pcb board circuit structure, and the aspect being up and down specially the folded structure layer on pcb board arranges the capacitance body that copper or tinfoil paper realize.
2. a kind of net mouth transformer realized by pcb board according to claim 1, be is characterized in that, described filter module is used for the high frequency unwanted signal in screen signal;
Described filter module adopts intends Bessel type TRACE filter structure;
Described plan Bessel type TRACE filter structure adopts the circuit structure on pcb board to realize the function of Bessel type stop-band filter, described plan Bessel type TRACE filter structure is provided with convolution cabling and realizes inductance element function, and the aspect up and down of the folded structure layer of described plan Bessel type TRACE filter structure on pcb board arranges copper or tinfoil paper realizes capacitance body function.
3. a kind of net mouth transformer realized by pcb board according to claim 1, be is characterized in that, described protection module is used for releasing to the high voltage of exception and big current, protecting secondary electron element and circuit;
Described protection module is provided with a vent discharge circuit be made up of semiconductor element, and described vent discharge circuit comprises many group IC unit;
Described protection module is provided with plate level point discharge circuit on circuit boards.
4. a kind of net mouth transformer realized by pcb board according to claim 1, be is characterized in that, all resistance of described coupling module, filter module, protection module are realized by the circuit structure on pcb board.
5. a kind of net mouth transformer realized by pcb board according to claim 1, be is characterized in that, the input of described net mouth transformer and output are directly realized by the circuit output end on pcb board and input.
6. a kind of net mouth transformer realized by pcb board according to claim 1, be is characterized in that, the topology of described net mouth transformer can be arranged and traditional net mouth transformer topological coherence, or inconsistent with traditional net mouth transformer topology.
7. a kind of net mouth transformer realized by pcb board according to claim 1, it is characterized in that, be embedded in the pcb board body of parent module or module at the same level after the pcb board body of described net mouth transformer can build separately, or the integration on the pcb board body of parent module or module at the same level of the pcb board body of described net mouth transformer builds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610017647.4A CN105471273A (en) | 2016-01-12 | 2016-01-12 | Ethernet interface transformer achieved through PCB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610017647.4A CN105471273A (en) | 2016-01-12 | 2016-01-12 | Ethernet interface transformer achieved through PCB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105471273A true CN105471273A (en) | 2016-04-06 |
Family
ID=55608680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610017647.4A Pending CN105471273A (en) | 2016-01-12 | 2016-01-12 | Ethernet interface transformer achieved through PCB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105471273A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201689786U (en) * | 2010-05-21 | 2010-12-29 | 深圳市共进电子有限公司 | Dielectric capacitor for printed circuit board |
| CN103747627A (en) * | 2013-12-24 | 2014-04-23 | 延锋伟世通电子科技（上海）有限公司 | Method for manufacturing inductance device by using printed circuit board |
| CN104199360A (en) * | 2014-09-02 | 2014-12-10 | 东莞立德精密工业有限公司 | Transmission circuit used for Ethernet |
| CN104348470A (en) * | 2013-07-31 | 2015-02-11 | 安雷科技有限公司 | Transmission circuit for Ethernet |
-
2016
- 2016-01-12 CN CN201610017647.4A patent/CN105471273A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201689786U (en) * | 2010-05-21 | 2010-12-29 | 深圳市共进电子有限公司 | Dielectric capacitor for printed circuit board |
| CN104348470A (en) * | 2013-07-31 | 2015-02-11 | 安雷科技有限公司 | Transmission circuit for Ethernet |
| CN103747627A (en) * | 2013-12-24 | 2014-04-23 | 延锋伟世通电子科技（上海）有限公司 | Method for manufacturing inductance device by using printed circuit board |
| CN104199360A (en) * | 2014-09-02 | 2014-12-10 | 东莞立德精密工业有限公司 | Transmission circuit used for Ethernet |
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Application publication date: 20160406 |
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