CN110365494A - It is avoided that the Ethernet telecommunication circuit that lightning stroke surging causes physical layer circuit to work as machine - Google Patents
It is avoided that the Ethernet telecommunication circuit that lightning stroke surging causes physical layer circuit to work as machine Download PDFInfo
- Publication number
- CN110365494A CN110365494A CN201810315575.0A CN201810315575A CN110365494A CN 110365494 A CN110365494 A CN 110365494A CN 201810315575 A CN201810315575 A CN 201810315575A CN 110365494 A CN110365494 A CN 110365494A
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- China
- Prior art keywords
- ethernet
- physical layer
- circuit
- layer circuit
- transformer
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- 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
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The present invention proposes a kind of Ethernet telecommunication circuit, includes: an Ethernet wiring connector, for carrying out data communication by an Ethernet winding thread and other devices；One Ethernet transformer is coupled to the Ethernet wiring connector, is arranged to handle the signal that the Ethernet wiring connector transmits；One Ethernet physical layer circuit, is coupled to the Ethernet transformer, is arranged to the signal transmitted to the Ethernet transformer and carries out physical layer operation；And multiple coupling capacitors, it is respectively arranged between the local signal pin of the Ethernet physical layer circuit and the Ethernet transformer.
Description
Technical field
The present invention relates to Ethernet telecommunication circuit, in particular to one kind is avoided that lightning stroke surging causes physical layer circuit to work as
The Ethernet telecommunication circuit of machine.
Background technique
The surging (transient voltage surge, or be transient voltage surging) that is struck by lightning may cause Ethernet
Physical layer circuit damage in telecommunication circuit, so the manufacturer of many physical layer circuits can be arranged respectively inside physical layer circuit
Kind lightning stroke surge protection circuit, to reinforce the ability that physical layer circuit resists lightning stroke surging.
However, although traditional physical layer circuit can use internal lightning stroke surge protection circuit to bear lightning stroke surging
Impact and being unlikely to cause circuit impaired, but still to often result in physical layer circuit different when machine (crash crashes) for the surging that is struck by lightning
Often happen.
Summary of the invention
In view of this, how to avoid or reduce a possibility that lightning stroke surging causes physical layer circuit to work as machine, actually need to be solved
Certainly the problem of.
This specification, which provides, a kind of is avoided that lightning stroke surging causes physical layer circuit when the Ethernet telecommunication circuit of machine
Embodiment, it includes: an Ethernet wiring connector, for carrying out data communication by an Ethernet winding thread and other devices；
One Ethernet transformer is coupled to the Ethernet wiring connector, is arranged to handle what the Ethernet wiring connector transmitted
Signal；One Ethernet physical layer circuit, is coupled to the Ethernet transformer, is arranged to transmit the Ethernet transformer
Signal carry out physical layer operation；And multiple coupling capacitors, it is respectively arranged at the part of the Ethernet physical layer circuit
Between signal pins and the Ethernet transformer.
One of the advantages of above-described embodiment is that multiple capacitor can effectively reduce lightning stroke surging to Ethernet physical layer
The impact of circuit, so a possibility that Ethernet physical layer circuit because lightning stroke surging can be greatly decreased and work as machine.
Another advantage of above-described embodiment is prominent it is not necessary that more complicated lightning stroke is arranged inside Ethernet physical layer circuit
Wave protection circuit, therefore the area requirements to Ethernet physical layer circuit can be effectively reduced.
Other advantages of the invention will arrange in pairs or groups following explanation and drawings provide more detailed explanation.
Detailed description of the invention
Fig. 1 is the simplified functional-block diagram of Ethernet telecommunication circuit of one embodiment of the invention.
Symbol description
100 Ethernet telecommunication circuits (Ethernet communication circuit)
110 Ethernet wiring connectors (Ethernet cable connector)
120 Ethernet transformers (Ethernet transformer)
130 Ethernet physical layer circuits (Ethernet physical layer circuit)
131-136 medium dependent interfaces signal pins (MDI signal pin)
Other signal pins (other signal pin) of 137-138
141-146 coupling capacitor (coupling capacitor)
Specific embodiment
Illustrate the embodiment of the present invention below in conjunction with relevant drawings.In the accompanying drawings, identical label indicate it is identical or
Similar element or method flow.
Fig. 1 is the simplified functional-block diagram of Ethernet telecommunication circuit 100 of one embodiment of the invention.Ethernet is logical
Believe that circuit 100 includes an Ethernet wiring connector 110, an Ethernet transformer 120, an Ethernet physical layer circuit
130 and multiple coupling capacitors.
Ethernet wiring connector 110 is used to carry out data communication by an Ethernet winding thread and other devices.In implementation,
Ethernet wiring connector 110 can be realized with ether grid line pin end or Ethernet winding thread female connector.
Ethernet transformer 120 is coupled to Ethernet wiring connector 110, is arranged to Ethernet wiring connector
110 signals transmitted carry out voltage isolation and filtering processing, to inhibit noise and realize impedance matching.
Ethernet physical layer circuit 130 is coupled to Ethernet transformer 120, is arranged to Ethernet transformer
120 signals transmitted carry out physical layer operation.As previously mentioned, various thunders can be set inside Ethernet physical layer circuit 130
Surge protection circuit is hit, is damaged to avoid Ethernet physical layer circuit 130 because being struck by lightning surging.
In implementation, Ethernet wiring connector 110, Ethernet transformer 120 and Ethernet physical layer above-mentioned
Circuit 130 can be realized with various existing circuits.Ethernet telecommunication circuit 100 can then use various Ethernets
The forms such as card, hub, exchanger, router are realized.
As previously mentioned, although the lightning stroke surge protection circuit inside Ethernet physical layer circuit 130 can be to avoid ether
Network entity layer circuit 130 is damaged because being struck by lightning surging, but the surging that is struck by lightning still may cause Ethernet physical layer circuit
130 occur when the abnormal conditions of machine.
In order to avoid afore-mentioned, the present embodiment can also Ethernet physical layer circuit 130 local signal pin with
Between Ethernet transformer 120, additional multiple coupling capacitors are respectively set.Also that is, multiple coupling capacitors above-mentioned
It is setting except Ethernet transformer 120 and Ethernet physical layer circuit 130.
As shown in Figure 1, the Ethernet telecommunication circuit 100 in the present embodiment includes multiple coupling capacitor 141-146, point
The local signal pin 131-136 letter corresponding to Ethernet transformer 120 of Ethernet physical layer circuit 130 is not set
Between number pin 121-126.
Coupling capacitor 141 is connected on the signal pins 131 and Ethernet transformer of Ethernet physical layer circuit 130
Between 120 respective pins 121, coupling capacitor 142 be connected on the signal pins 132 of Ethernet physical layer circuit 130 with
Between the respective pins 122 of Ethernet transformer 120, coupling capacitor 143 is connected on Ethernet physical layer circuit 130
Between signal pins 133 and the respective pins of Ethernet transformer 120 123, coupling capacitor 144 is connected on Ethernet reality
Between the signal pins 134 of body layer circuit 130 and the respective pins 124 of Ethernet transformer 120, coupling capacitor 145 is gone here and there
It is associated between the signal pins 135 of Ethernet physical layer circuit 130 and the respective pins 125 of Ethernet transformer 120, and
Coupling capacitor 146 is then connected on the signal pins 136 and Ethernet transformer 120 of Ethernet physical layer circuit 130
Between respective pins 126.
When the surging that is struck by lightning occurs, coupling capacitor 141-146 above-mentioned can block direct current on respective signal path
Electric current, therefore can reduce sudden electric current caused by lightning stroke surging to impact caused by Ethernet physical layer circuit 130.It changes
Yan Zhi, coupling capacitor 141-146 above-mentioned can provide Ethernet physical layer circuit 130 additional lightning stroke surging protection
Function.
Rule of thumb, the medium for Ethernet physical layer circuit 130 being arranged in additional coupling capacitor above-mentioned is related
Interface (medium dependent interface, MDI) between signal pins and Ethernet transformer 120, is best able to drop
A possibility that low Ethernet physical layer circuit 130 works as machine because being struck by lightning surging.
Therefore, the signal pins that can be coupled with coupling capacitor 141-146 in aforementioned Ethernet physical layer circuit 130
131-136 can be medium dependent interfaces signal pins.For example, signal pins 131 and 132 can be a pair of of differential type matchmaker
Jie's relevant interface signal pins, signal pins 133 and 134 can be another pair differential type medium dependent interfaces signal pins, and
Signal pins 135 and 136 item can be another to differential type medium dependent interfaces signal pins.In Ethernet physical layer circuit
130 support Automated skip function (auto MDI/MDIX) embodiment in, Ethernet physical layer circuit 130 can elasticity set
Set the function of aforementioned signal pin 131-136.
In implementation, multiple coupling capacitor 141-146 above-mentioned have substantially the same capacitance.It note that certain
Ethernet transformer 120 or Ethernet physical layer circuit 130 in embodiment can comprising several built-in capacitors (or
For built-in capacitor), but the capacitance of coupling capacitor 141-146 is all more much larger than the capacitance of these built-in capacitors, because
This is not suitable for being integrated into Ethernet transformer 120 or Ethernet physical layer circuit 130, to avoid Ethernet is significantly increased
The circuit area or encapsulation volume of network transformer 120 or Ethernet physical layer circuit 130.
In addition, in other signal pins 137-138 and Ethernet transformer 120 of Ethernet physical layer circuit 130
Respective pins 127-128 between, then similar coupling capacitor that no setting is required.In other words, additional coupling capacitor above-mentioned
The part signal pin that Ethernet physical layer circuit 130 need to be only arranged in 141-146 is corresponding to Ethernet transformer 120
Between pin.
By preceding description it is found that Ethernet physical layer circuit 130 local signal pin 131-136 and Ethernet
Additional multiple coupling capacitor 141-146 are respectively set between transformer 120, can effectively reduce lightning stroke surging to Ethernet
The impact of physical layer circuit 130, and then reduce a possibility that Ethernet physical layer circuit 130 works as machine because being struck by lightning surging.
In addition, multiple coupling capacitor 141-146 above-mentioned to be separately positioned on to the matchmaker of Ethernet physical layer circuit 130
It is electric most helpful in Ethernet physical layer is reduced between Jie relevant interface signal pins 131-136 and Ethernet transformer 120
A possibility that machine is worked as because being struck by lightning surging in road 130.
Furthermore using the surging safeguard function that is additionally struck by lightning provided by aforementioned additional capacitor 141-146, in Ethernet
Just no setting is required inside physical layer circuit 130 more complicated lightning stroke surge protection circuit, therefore can be effectively reduced to Ethernet reality
The area requirements of body layer circuit 130.
It note that the circuit framework in earlier figures 1 is an exemplary embodiment, not limit to practical reality of the invention
Apply mode.For example, the quantity of the medium dependent interfaces signal pins in Ethernet physical layer circuit 130, it is not limited to preceding
State the embodiment of Fig. 1.In implementation, the quantity of the medium dependent interfaces signal pins in Ethernet physical layer circuit 130 can be with
It needs and increases or decreases according to actual circuit.
In addition, influenced in the lower embodiment of smaller or occurrence probability in certain lightning stroke surgings, it can also be only in Ethernet
Between the Some mediator relevant interface signal pins of network physical layer circuit 130 and the respective pins of Ethernet transformer 120, if
Additional coupling capacitor is set, to simplify the complexity of circuit.
Some vocabulary is used in specification and claim to censure specific element, and technology people in the art
Member may call same element with different nouns.This specification and claims not with the difference of title as
The mode of element is distinguished, but with the difference of element functionally as the benchmark of differentiation.In specification and claim
Mentioned "comprising" is open term, should be construed to " including but not limited to ".In addition, " coupling " word includes herein
Any direct and indirect connection means.Therefore, if it is described herein that first element is coupled to second element, then first element is represented
It can be attached directly to second element by being electrically connected or being wirelessly transferred, and the signals connection type such as optical delivery, or passed through
Electrical property or signal are connected to second element indirectly for other elements or connection means.
The above is only a preferred embodiment of the present invention, all equivalence changes and modification made according to the claims in the present invention, all
It should belong to the scope of the present invention.
Claims (6)
1. a kind of be avoided that lightning stroke surging causes physical layer circuit to work as the Ethernet telecommunication circuit of machine, include:
One Ethernet wiring connector, for carrying out data communication by an Ethernet winding thread and other devices；
One Ethernet transformer is coupled to the Ethernet wiring connector, is arranged to handle Ethernet wiring connector biography
The signal come；
One Ethernet physical layer circuit, is coupled to the Ethernet transformer, is arranged to transmit the Ethernet transformer
Signal carry out physical layer operation；And
Multiple coupling capacitors, the local signal pin and the Ethernet for being respectively arranged at the Ethernet physical layer circuit become
Between depressor.
2. Ethernet telecommunication circuit as described in claim 1, wherein multiple coupling capacitor is only set to the Ethernet
Between the local signal pin of network physical layer circuit and the Ethernet transformer.
3. Ethernet telecommunication circuit as claimed in claim 2, wherein multiple coupling capacitor has substantially the same
Capacitance.
4. Ethernet telecommunication circuit as claimed in claim 2, wherein multiple coupling capacitor is only set to the Ethernet
Between the multiple medium dependent interfaces signal pins and the Ethernet transformer of network physical layer circuit.
5. Ethernet telecommunication circuit as claimed in claim 4, wherein multiple coupling capacitor has substantially the same
Capacitance.
6. Ethernet telecommunication circuit as described in claim 1, wherein multiple coupling capacitor has substantially the same
Capacitance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810315575.0A CN110365494A (en) | 2018-04-10 | 2018-04-10 | It is avoided that the Ethernet telecommunication circuit that lightning stroke surging causes physical layer circuit to work as machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810315575.0A CN110365494A (en) | 2018-04-10 | 2018-04-10 | It is avoided that the Ethernet telecommunication circuit that lightning stroke surging causes physical layer circuit to work as machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110365494A true CN110365494A (en) | 2019-10-22 |
Family
ID=68212766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810315575.0A Pending CN110365494A (en) | 2018-04-10 | 2018-04-10 | It is avoided that the Ethernet telecommunication circuit that lightning stroke surging causes physical layer circuit to work as machine |
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| Country | Link |
|---|---|
| CN (1) | CN110365494A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080137759A1 (en) * | 2006-12-11 | 2008-06-12 | Jun Cai | Network devices with solid state transformer and class ab output stage for active emi suppression and termination of open-drain transmit drivers of a physical device |
| CN203774779U (en) * | 2014-02-17 | 2014-08-13 | 弘邺科技有限公司 | Lightning proof device of network signal processing circuit |
| CN204696671U (en) * | 2015-04-03 | 2015-10-07 | 富士康(昆山)电脑接插件有限公司 | Network surge prevention circuit and apply the network surge prevention device of this circuit |
| US20160028225A1 (en) * | 2012-04-06 | 2016-01-28 | Ajoho Enterprise Co., Ltd. | Surge protective network signal processing circuit assembly |
| US20160064924A1 (en) * | 2014-08-28 | 2016-03-03 | Adtran, Inc. | SYSTEM AND METHOD FOR ISOLATING AND PROTECTING A PoE (POWER OVER ETHERNET) DEVICE |
| CN205335831U (en) * | 2016-01-14 | 2016-06-22 | 东莞建冠塑胶电子有限公司 | Surging protection circuit |
| US20160294347A1 (en) * | 2015-04-03 | 2016-10-06 | Foxconn Interconnect Technology Limited | Network filtering circuit for protection lightning surge |
| US20170195952A1 (en) * | 2014-09-22 | 2017-07-06 | Huawei Technologies Co., Ltd. | Method and apparatus for controlling enabling of station |
| US20170351309A1 (en) * | 2016-06-03 | 2017-12-07 | Crestron Electronics, Inc. | Dual sourcing power over ethernet on a single data path |
-
2018
- 2018-04-10 CN CN201810315575.0A patent/CN110365494A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080137759A1 (en) * | 2006-12-11 | 2008-06-12 | Jun Cai | Network devices with solid state transformer and class ab output stage for active emi suppression and termination of open-drain transmit drivers of a physical device |
| US20160028225A1 (en) * | 2012-04-06 | 2016-01-28 | Ajoho Enterprise Co., Ltd. | Surge protective network signal processing circuit assembly |
| CN203774779U (en) * | 2014-02-17 | 2014-08-13 | 弘邺科技有限公司 | Lightning proof device of network signal processing circuit |
| US20160064924A1 (en) * | 2014-08-28 | 2016-03-03 | Adtran, Inc. | SYSTEM AND METHOD FOR ISOLATING AND PROTECTING A PoE (POWER OVER ETHERNET) DEVICE |
| US20170195952A1 (en) * | 2014-09-22 | 2017-07-06 | Huawei Technologies Co., Ltd. | Method and apparatus for controlling enabling of station |
| CN204696671U (en) * | 2015-04-03 | 2015-10-07 | 富士康(昆山)电脑接插件有限公司 | Network surge prevention circuit and apply the network surge prevention device of this circuit |
| US20160294347A1 (en) * | 2015-04-03 | 2016-10-06 | Foxconn Interconnect Technology Limited | Network filtering circuit for protection lightning surge |
| CN205335831U (en) * | 2016-01-14 | 2016-06-22 | 东莞建冠塑胶电子有限公司 | Surging protection circuit |
| US20170351309A1 (en) * | 2016-06-03 | 2017-12-07 | Crestron Electronics, Inc. | Dual sourcing power over ethernet on a single data path |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191022 |