TW201703371A - Network interface circuit and network connector using the same - Google Patents
Network interface circuit and network connector using the same Download PDFInfo
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本發明涉及一種網路接口電路及應用其之網路接口連接器,尤其涉及一種具有第五通道和以太網供電功能之網路接口電路及網路接口連接器。The invention relates to a network interface circuit and a network interface connector using the same, in particular to a network interface circuit and a network interface connector with a fifth channel and a power supply function of a power supply.
習知10G BASE-T網路接口連接器(RJ45)中經常採用四訊號傳輸通道和增加一共模檢測反饋通道,即為第五通道。UPOE(Universal Power Over Ethernet)通用以太網供電為2014年Cisco公司建立之非IEEE標準規範,其特徵在於相比傳統POE標準IEEE802.3af-2003和POE+標準IEEE802.3at-2009傳輸電源功率更大,POE標準藉由以太網網線傳輸大約15W之直流電,POE+標準藉由以太網網線傳輸大約30W之直流電,而UPOE則能傳輸約60W之以太網電源。另,UPOE與POE/POE+不同之處在於利用雙絞線或者RJ45內端子對數不同,POE/POE+利用四對訊號傳輸通道中之兩對差分對來傳輸電源,既可以係1,2/3,6差分訊號對傳輸,可以利用4,5/7,8差分訊號對傳輸。當然於10M/100M網路時,其中1,2/3,6均係訊號傳輸對,而4,5/7,8則係空閑腳。The conventional 10G BASE-T network interface connector (RJ45) often uses a four-signal transmission channel and adds a common-mode detection feedback channel, which is the fifth channel. UPOE (Universal Power Over Ethernet) is a non-IEEE standard specification established by Cisco in 2014. It is characterized by a higher transmission power than the traditional POE standard IEEE802.3af-2003 and POE+ standard IEEE802.3at-2009. The POE standard transmits about 15W of DC power through an Ethernet cable. The POE+ standard transmits about 30W of DC power through an Ethernet cable, while the UPOE can transmit about 60W of Ethernet power. In addition, UPOE differs from POE/POE+ in that the number of pairs of twisted pairs or RJ45 terminals is different. POE/POE+ uses two pairs of differential pairs in four pairs of signal transmission channels to transmit power, which can be 1, 2/3. 6 differential signal pair transmission, can be transmitted using 4, 5/7, 8 differential signal pairs. Of course, in the 10M/100M network, 1, 2/3, 6 are signal transmission pairs, and 4, 5/7, 8 are idle feet.
2014年02年11公告之TWI473128B號專利揭示了包括四訊號傳輸通道和第五通道網路接口連接器,其係1X1 10G BASE-T之RJ45連接器。The TWI473128B patent published in the 2012 No. 11 publication discloses a four-signal transmission channel and a fifth-channel network interface connector, which is a 1X1 10G BASE-T RJ45 connector.
習知四通道之10G bit/s網路接口連接器UPOE電路及腳位定義圖請參看附圖7至圖9,其中四電源端子(P13~P16)連接於0.22uf電容與變壓器之中心抽頭之間,變壓器第二線圈之中心抽頭(P3,P6,P9,P12)分別連接至物理側(PHY SIDE)。如何將包括第五通道之連接器中引入UPOE之四根電源端子,以及如何將引入第五通道之RJ45連接器中安裝端子與四通道之連接器RJ45連接器中安裝端子相互兼容成為了設計人員之開發難點。For the four-channel 10G bit/s network interface connector UPOE circuit and pin definition diagram, please refer to Figure 7 to Figure 9, where the four power terminals (P13~P16) are connected to the 0.22uf capacitor and the center tap of the transformer. The center taps (P3, P6, P9, P12) of the second coil of the transformer are connected to the physical side (PHY SIDE), respectively. How to introduce the four power terminals of the UPOE into the connector including the fifth channel, and how to make the mounting terminal in the RJ45 connector of the fifth channel compatible with the mounting terminal of the four-channel connector RJ45 connector become a designer. The difficulty of development.
本發明所欲解決之技術問題在於:提供一種網路接口電路,其包括第五通道,其能傳輸以太網電源。The technical problem to be solved by the present invention is to provide a network interface circuit including a fifth channel capable of transmitting Ethernet power.
為解決上述技術問題,本發明之技術手段係:In order to solve the above technical problems, the technical means of the present invention is:
一種網路接口電路,其包括線纜側、物理側、連接於線纜側和物理側之間之五通道,五通道包括四訊號傳輸通道和第五通道,第五通道為共模反饋檢測通道,每一訊號傳輸通道設有變壓器,變壓器具有與線纜側連接之第一線圈和物理側連接之第二線圈,第一線圈和第二線圈均具有中心抽頭,第一線圈之中心抽頭串聯有第一電容器和接地點,該網路接口電路還包括以太網供電電路,該以太網供電電路一端連接於第一線圈之中心抽頭與第一電容器之間,另一端連接至物理側,其中該第五通道包括第一連接端和連接至物理側之第二連接端,該第一連接端連接於第一電容器和接地點之間。A network interface circuit includes a cable side, a physical side, and five channels connected between the cable side and the physical side, the five channels include four signal transmission channels and a fifth channel, and the fifth channel is a common mode feedback detection channel. Each signal transmission channel is provided with a transformer, the transformer has a first coil connected to the cable side and a second coil connected to the physical side, the first coil and the second coil each have a center tap, and the center tap of the first coil is connected in series a first capacitor and a ground point, the network interface circuit further comprising a power over Ethernet circuit, one end of the power supply circuit is connected between the center tap of the first coil and the first capacitor, and the other end is connected to the physical side, wherein the The five channels include a first connection end and a second connection end connected to the physical side, the first connection end being connected between the first capacitor and the ground point.
由於本發明將第五通道之第一連接端設置於第一電容和接地之間,第一電容將以太網供電電路與第五傳輸通道之第一連接端進行了隔離(以太網傳輸電源為直流電),防止了以太網供電電源對第五通道之傳輸干擾。Since the first connection end of the fifth channel is disposed between the first capacitor and the ground, the first capacitor isolates the power supply circuit from the first connection end of the fifth transmission channel (the Ethernet transmission power source is DC power) ), preventing the transmission of the power supply to the fifth channel by the power supply of the Ethernet.
本發明所欲解決之技術問題在於:提供一種網路接口連接器,其包括第五通道,其安裝端子數量少。The technical problem to be solved by the present invention is to provide a network interface connector including a fifth channel having a small number of mounting terminals.
一種網路接口連接器,其包括對接端口、延伸於對接端口內之八根對接端子、安裝底面、向下延伸超出安裝底面之複數安裝端子、以及電性連接於八根對接端子和複數安裝端子之間之四訊號傳輸通道,每一訊號傳輸通道包括一變壓器,該變壓器包括與兩對接端子電性連接之第一線圈和兩安裝端子電性連接之第二線圈,第二線圈具有與物理側電性連接之第二中心抽頭,其中至少有兩變壓器之第二中心抽頭並聯後電性連接至一安裝端子,該網路接口連接器還具有用於共模反饋檢測之第五通道,第五通道電性連接於複數安裝端子中之兩根根安裝端子。A network interface connector includes a docking port, eight mating terminals extending in the docking port, a mounting bottom surface, a plurality of mounting terminals extending downward beyond the mounting bottom surface, and electrically connected to the eight mating terminals and the plurality of mounting terminals Between the four signal transmission channels, each of the signal transmission channels includes a transformer, the transformer includes a first coil electrically connected to the two mating terminals and a second coil electrically connected to the two mounting terminals, and the second coil has a physical side a second center tap electrically connected, wherein at least two of the second center taps of the transformer are electrically connected in parallel to a mounting terminal, the network interface connector further having a fifth channel for common mode feedback detection, and a fifth The channel is electrically connected to two of the plurality of mounting terminals.
相比先前技術,本發明將原本與每一第二中心抽頭連接之四根安裝端子電路(均用於接地連接或連接電源),進行了並聯設置,降低了安裝端子數量,可以節省出來為第五通道所利用,從而降低了網路接口連接器之尺寸,並可與現有四通道之網路接口連接器安裝端子腳位相兼容。Compared with the prior art, the present invention integrates four mounting terminal circuits (both for ground connection or power supply) which are originally connected to each second center tap, and is arranged in parallel to reduce the number of mounting terminals, which can be saved as the first Five channels are utilized to reduce the size of the network interface connector and are compatible with existing four-channel network interface connector mounting terminal pins.
第一圖係本發明網路接口電路之電路圖。The first figure is a circuit diagram of the network interface circuit of the present invention.
第二圖係本發明網路接口連接器之立體圖。The second figure is a perspective view of the network interface connector of the present invention.
第三圖係第二圖所示網路接口連接器之主視圖。The third figure is the main view of the network interface connector shown in the second figure.
第四圖係第三圖所示網路接口連接器之側視圖。The fourth figure is a side view of the network interface connector shown in the third figure.
第五圖係第三圖所示網路接口連接器之仰視圖,並對安裝端子腳位進行了局部放大。The fifth figure is a bottom view of the network interface connector shown in the third figure, and the mounting terminal pin is partially enlarged.
第六圖係第五圖所示安裝端子之腳位定義表格。The sixth figure is a table of pin definitions for the mounting terminals shown in the fifth figure.
第七圖係先前技術中四通道10Gbit/s網路接口電路之電路圖。The seventh diagram is a circuit diagram of a four-channel 10 Gbit/s network interface circuit in the prior art.
第八圖係先前技術中四通道10Gbit/s網路接口連接器之仰視圖,並對安裝端子腳位進行了局部放大。Figure 8 is a bottom view of the prior art four-channel 10 Gbit/s network interface connector with partial amplification of the mounting terminal pins.
第九圖係第八圖所示現有網路接口連接器之腳位定義表格。The ninth figure is a table of foot definitions of the existing network interface connector shown in the eighth figure.
請參閱第一圖,為符合本發明之一種網路接口電路100,其包括線纜側10、物理側20、連接於線纜側10和物理側20之間之五通道。五通道包括四訊號傳輸通道31和第五通道35,第五通道35為共模反饋檢測通道,每一訊號傳輸通道31設有一變壓器40和一共模扼流圈50。變壓器40具有與線纜側10連接之第一線圈401和物理側20連接之第二線圈402,第一線圈401具有第一中心抽頭4013,第二線圈402具有第二中心抽頭4023。第一線圈401之兩端4011連接至線纜側10,第一中心抽頭4013依次連接第一電容器61、電阻器62、第二電容器63至接地點64。第一電容器61值為0.22uF,第二電容器63值為1000pf,電阻器62至為750ohms。共模扼流圈50包括與訊號傳輸通道串聯設置之兩線圈,每一線圈具有第一端501和相反之第二端502。共模扼流圈50之兩第一端501與第二線圈402之兩端4021連接,兩第二端502連接至物理側20。當共模扼流圈50為兩線共模扼流圈時,第二中心抽頭4023直接連接至物理側20。當共模扼流圈50為三線共模扼流圈時(未圖示),第二中心抽頭連接至三線共模扼流圈中間線圈上。Referring to the first figure, a network interface circuit 100 in accordance with the present invention includes a cable side 10, a physical side 20, and five channels connected between the cable side 10 and the physical side 20. The five channels include a four signal transmission channel 31 and a fifth channel 35. The fifth channel 35 is a common mode feedback detection channel. Each signal transmission channel 31 is provided with a transformer 40 and a common mode choke 50. Transformer 40 has a first coil 401 coupled to cable side 10 and a second coil 402 coupled to physical side 20, first coil 401 having a first center tap 4013 and second coil 402 having a second center tap 4023. The two ends 4011 of the first coil 401 are connected to the cable side 10, and the first center tap 4013 sequentially connects the first capacitor 61, the resistor 62, and the second capacitor 63 to the grounding point 64. The first capacitor 61 has a value of 0.22 uF, the second capacitor 63 has a value of 1000 pf, and the resistor 62 has a value of 750 ohms. The common mode choke 50 includes two coils disposed in series with the signal transmission channel, each coil having a first end 501 and an opposite second end 502. The first ends 501 of the common mode chokes 50 are connected to the two ends 4021 of the second coil 402, and the second ends 502 are connected to the physical side 20. When the common mode choke 50 is a two-wire common mode choke, the second center tap 4023 is directly connected to the physical side 20. When the common mode choke 50 is a three-wire common mode choke (not shown), the second center tap is connected to the intermediate coil of the three-wire common mode choke.
第五通道35可以包括第五變壓器40’和第五共模扼流圈50’,第五變壓器40’包括一次側線圈401’和第五共模扼流圈50’一端連接之二次側線圈402’ ,第五共模扼流圈50’之另一端連接至物理側20。第五變壓器40’之一次側線圈401’和二次側線圈402’相互耦合,且可以設置為均無中心抽頭。一次側線圈401’具有兩連接端4011’,一連接端4011’連接於第一電容器61和電阻器62之間,另一連接端4011’連接於電阻器62和第二電容器63之間。The fifth channel 35 may include a fifth transformer 40' and a fifth common mode choke 50', and the fifth transformer 40' includes a primary side coil 401' and a secondary side coil connected at one end of the fifth common mode choke 50' 402', the other end of the fifth common mode choke 50' is connected to the physical side 20. The primary side coil 401' and the secondary side coil 402' of the fifth transformer 40' are coupled to each other, and may be disposed to have no center taps. The primary side coil 401' has two connection ends 4011', one connection end 4011' is connected between the first capacitor 61 and the resistor 62, and the other connection end 4011' is connected between the resistor 62 and the second capacitor 63.
網路接口電路100還包括以太網供電電路65,該以太網供電電路65一端連接於第一線圈401之第一中心抽頭4013與第一電容器61之間,另一端連接至物理側20。每一訊號傳輸通道31均連接有一以太網供電電路65,四以太網供電電路65用以提供60W之直流電源,即滿足UPOE規格。The network interface circuit 100 further includes a power over Ethernet circuit 65 connected at one end to the first center tap 4013 of the first coil 401 and the first capacitor 61 and at the other end to the physical side 20. Each of the signal transmission channels 31 is connected to a Power over Ethernet circuit 65. The four Power over Ethernet circuits 65 are used to provide a 60W DC power supply, that is, to meet the UPOE specifications.
四訊號傳輸通道31中至少有兩第二中心抽頭4023並聯後連接至物理側20,較佳實施例可以將四第二中心抽頭4023並聯後連接至物理側20,如是可以空出部分端子給第五通道35使用,從而降低安裝端子使用量。At least two second center taps 4023 of the four signal transmission channels 31 are connected in parallel to the physical side 20. In the preferred embodiment, the four second center taps 4023 can be connected in parallel to the physical side 20, for example, the terminal can be vacated. Five channels 35 are used to reduce the amount of mounting terminal usage.
請一併參閱第二圖至第六圖,一種網路接口連接器700其利用上述網路接口電路100。請結合參考第一圖和第二圖至第六圖,網路接口連接器700其包括對接端口71、延伸於對接端口71內之八根對接端子72、安裝底面73、向下延伸超出安裝底面73之複數安裝端子75、以及電性連接於八根對接端子72和複數安裝端子75之間之四訊號傳輸通道,每一訊號傳輸通道包括一變壓器,該變壓器包括與兩對接端子72電性連接之第一線圈和兩安裝端子75電性連接之第二線圈,第二線圈具有與物理側電性連接之第二中心抽頭。至少有兩變壓器之第二中心抽頭並聯後電性連接至一安裝端子75(P9),該網路接口連接器700還具有用於共模反饋檢測之第五通道,第五通道電性連接於複數安裝端子75中之兩根安裝端子(P10,P11)。由於將至少有兩變壓器之第二中心抽頭並聯後電性連接至一安裝端子75(P9),降低了安裝端子數量以及減小了佔用連接器之空間,從而使得連接器更小。Referring to Figures 2 through 6, together, a network interface connector 700 utilizes the network interface circuit 100 described above. Referring to the first and second to sixth figures, the network interface connector 700 includes a docking port 71, eight docking terminals 72 extending in the docking port 71, a mounting bottom surface 73, and extending downward beyond the mounting bottom surface. The plurality of mounting terminals 75 of the 73 and the four signal transmission channels electrically connected between the eight mating terminals 72 and the plurality of mounting terminals 75, each of the signal transmission channels includes a transformer, and the transformer includes an electrical connection with the two mating terminals 72 The first coil and the second coil electrically connected to the two mounting terminals 75, the second coil has a second center tap electrically connected to the physical side. The second center taps of at least two transformers are electrically connected in parallel to a mounting terminal 75 (P9). The network interface connector 700 further has a fifth channel for common mode feedback detection, and the fifth channel is electrically connected to the fifth channel. Two of the mounting terminals (P10, P11) of the plurality of terminals 75 are mounted. Since the second center taps of at least two transformers are electrically connected in parallel to a mounting terminal 75 (P9), the number of mounting terminals is reduced and the space occupied by the connectors is reduced, thereby making the connector smaller.
複數安裝端子75包括訊號端子區301和電源端子區302,訊號端子區301包括十二根安裝端子(P1~P12),電源端子區302包括四根安裝端子(P13~P16)用以傳輸以太網電源,第五通道電性連接之兩根安裝端子(P10~P11)位於訊號端子區301內。訊號端子區301中有八根安裝端子(P1~P8)與四變壓器之第二線圈兩端分別電性連接,訊號端子區中有一根安裝端子(P9)與四變壓器之第二中心抽頭電性連接,訊號端子區301中還有一根空閑安裝端子(P12)。由於將四第二中心抽頭並聯後連接至一安裝端子,從而空閑出了三根安裝端子,其中兩根安裝端子可以用於與第五通道連接,從而可以兼容四通道設計之網路接口連接器之安裝端子之Layout(參第七圖至第九圖)。每一變壓器之第一線圈具有第一中心抽頭,電源端子區之四根端子能傳輸60W之以太網電源,且電源端子區之四根安裝端子(P13~P16)分別電性連接至變壓器之第一中心抽頭。The plurality of mounting terminals 75 include a signal terminal area 301 and a power terminal area 302. The signal terminal area 301 includes twelve mounting terminals (P1 to P12), and the power terminal area 302 includes four mounting terminals (P13 to P16) for transmitting Ethernet. The two mounting terminals (P10~P11) of the power supply and the fifth channel are electrically connected in the signal terminal area 301. In the signal terminal area 301, eight mounting terminals (P1~P8) are electrically connected to the two ends of the second coil of the four transformers, and one of the mounting terminals (P9) and the second center tap of the four transformers are electrically connected in the signal terminal area. In the connection, there is also a free mounting terminal (P12) in the signal terminal area 301. Since the four second center taps are connected in parallel and connected to a mounting terminal, three mounting terminals are vacated, and two of the mounting terminals can be used for connection with the fifth channel, thereby being compatible with the four-channel design of the network interface connector. Install the layout of the terminal (refer to Figure 7 to Figure IX). The first coil of each transformer has a first center tap, the four terminals of the power terminal area can transmit 60W of Ethernet power, and the four mounting terminals (P13~P16) of the power terminal area are electrically connected to the transformer respectively. A center tap.
網路接口連接器700包括絕緣本體74、包圍於絕緣本體74外側之金屬殼體76、安裝於金屬殼體前側之彈性墊圈77、指示通訊狀態之指示燈78。八根對接端子72固定收容於絕緣本體74內,對接端口71設置於絕緣本體74之前側。金屬殼體76對應第一圖中之接地點64,可以與網路接口連接器700安裝之主板(mother board)中之接地層電性連接。The network interface connector 700 includes an insulative housing 74, a metal housing 76 that surrounds the outside of the insulative housing 74, a resilient washer 77 that is mounted to the front side of the metal housing, and an indicator light 78 that indicates the communication status. The eight docking terminals 72 are fixedly received in the insulative housing 74, and the mating port 71 is disposed on the front side of the insulative housing 74. The metal housing 76 corresponds to the grounding point 64 in the first figure, and can be electrically connected to the grounding layer in the motherboard of the network interface connector 700.
綜上,本發明確已符合發明專利之要件,爰依法提出專利申請。惟,以上該者僅係本發明之較佳實施方式,本發明之範圍並不以上述實施方式為限,舉凡熟習本案技藝之人士援依本發明之精神所作之等效修飾或變化,皆應涵蓋於以下申請專利範圍內。In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or changes in accordance with the spirit of the present invention. It is covered by the following patent application.
10‧‧‧線纜側10‧‧‧ Cable side
100‧‧‧網路接口電路100‧‧‧Network interface circuit
20‧‧‧物理側20‧‧‧ physical side
301‧‧‧訊號端子區301‧‧‧ Signal Terminal Area
302‧‧‧電源端子區302‧‧‧Power terminal area
31‧‧‧訊號傳輸通道31‧‧‧Signal transmission channel
35‧‧‧第五通道35‧‧‧ fifth channel
40‧‧‧變壓器40‧‧‧Transformers
40’‧‧‧第五變壓器40’‧‧‧ fifth transformer
401‧‧‧第一線圈401‧‧‧First coil
4011、4021‧‧‧兩端4011, 4021‧‧‧ both ends
401’‧‧‧一次側線圈401'‧‧‧ primary side coil
4011’‧‧‧連接端4011’‧‧‧Connected end
4013‧‧‧第一中心抽頭4013‧‧‧First Center Tap
402‧‧‧第二線圈402‧‧‧second coil
402’‧‧‧二次側線圈402'‧‧‧second side coil
4023‧‧‧第二中心抽頭4023‧‧‧second center tap
50‧‧‧共模扼流圈50‧‧‧Common mode choke
50’‧‧‧第五共模扼流圈50’‧‧‧ Fifth Common Mode Choke
501‧‧‧第一端501‧‧‧ first end
502‧‧‧第二端502‧‧‧ second end
61‧‧‧第一電容器61‧‧‧First capacitor
62‧‧‧電阻器62‧‧‧Resistors
63‧‧‧第二電容器63‧‧‧second capacitor
64‧‧‧接地點64‧‧‧ Grounding point
65‧‧‧以太網供電電路65‧‧‧Power over Ethernet circuit
700‧‧‧網路接口連接器700‧‧‧Network Interface Connector
71‧‧‧對接端口71‧‧‧ docking port
72‧‧‧對接端子72‧‧‧Docking terminal
73‧‧‧安裝底面73‧‧‧Installation underside
74‧‧‧絕緣本體74‧‧‧Insulated body
75‧‧‧安裝端子75‧‧‧Installation terminal
76‧‧‧金屬殼體76‧‧‧Metal housing
77‧‧‧彈性墊圈77‧‧‧Flexible washers
78‧‧‧指示燈78‧‧‧ indicator light
無no
10‧‧‧線纜側 10‧‧‧ Cable side
100‧‧‧網路接口電路 100‧‧‧Network interface circuit
20‧‧‧物理側 20‧‧‧ physical side
31‧‧‧訊號傳輸通道 31‧‧‧Signal transmission channel
35‧‧‧第五通道 35‧‧‧ fifth channel
40‧‧‧變壓器 40‧‧‧Transformers
40’‧‧‧第五變壓器 40’‧‧‧ fifth transformer
401‧‧‧第一線圈 401‧‧‧First coil
4011、4021‧‧‧兩端 4011, 4021‧‧‧ both ends
401’‧‧‧一次側線圈 401'‧‧‧ primary side coil
4011’‧‧‧連接端 4011’‧‧‧Connected end
4013‧‧‧第一中心抽頭 4013‧‧‧First Center Tap
402‧‧‧第二線圈 402‧‧‧second coil
402’‧‧‧二次側線圈 402'‧‧‧second side coil
4023‧‧‧第二中心抽頭 4023‧‧‧second center tap
50‧‧‧共模扼流圈 50‧‧‧Common mode choke
50’‧‧‧第五共模扼流圈 50’‧‧‧ Fifth Common Mode Choke
501‧‧‧第一端 501‧‧‧ first end
502‧‧‧第二端 502‧‧‧ second end
61‧‧‧第一電容器 61‧‧‧First capacitor
62‧‧‧電阻器 62‧‧‧Resistors
63‧‧‧第二電容器 63‧‧‧second capacitor
64‧‧‧接地點 64‧‧‧ Grounding point
65‧‧‧以太網供電電路 65‧‧‧Power over Ethernet circuit
72‧‧‧對接端子 72‧‧‧Docking terminal
75‧‧‧安裝端子 75‧‧‧Installation terminal
Claims (10)
四訊號傳輸通道,每一訊號傳輸通道設有變壓器,變壓器具有與線纜側連接之第一線圈和物理側連接之第二線圈,第一線圈和第二線圈均具有中心抽頭,第一線圈之中心抽頭串聯有第一電容器和接地點;
以太網供電電路,該以太網供電電路一端連接於第一線圈之中心抽頭與第一電容器之間,另一端連接至物理側;以及
第五通道,該第五通道為共模反饋檢測通道,該第五通道包括第一連接端和連接至物理側之第二連接端,其中該第一連接端連接於第一電容器和接地點之間。A network interface circuit includes a cable side, a physical side, and five channels connected between the cable side and the physical side, the five channels including:
a four-signal transmission channel, each signal transmission channel is provided with a transformer, the transformer has a first coil connected to the cable side and a second coil connected to the physical side, the first coil and the second coil each have a center tap, the first coil The center tap has a first capacitor and a ground point in series;
a power supply circuit, one end of the power supply circuit is connected between the center tap of the first coil and the first capacitor, and the other end is connected to the physical side; and the fifth channel is a common mode feedback detection channel, The fifth channel includes a first connection end and a second connection end connected to the physical side, wherein the first connection end is connected between the first capacitor and the ground point.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201510402226.9A CN106340761B (en) | 2015-07-10 | 2015-07-10 | Network interface circuit and apply its network interface connector |
Publications (2)
Publication Number | Publication Date |
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TW201703371A true TW201703371A (en) | 2017-01-16 |
TWI590542B TWI590542B (en) | 2017-07-01 |
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Family Applications (1)
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TW104124628A TWI590542B (en) | 2015-07-10 | 2015-07-30 | Network interface circuit and network connector using the same |
Country Status (2)
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CN (1) | CN106340761B (en) |
TW (1) | TWI590542B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107819588B (en) * | 2017-11-07 | 2020-10-30 | 晶晨半导体(上海)股份有限公司 | Network interface circuit |
CN112600016B (en) * | 2020-11-25 | 2022-08-05 | Oppo广东移动通信有限公司 | Interface device, power supply apparatus, power receiving apparatus, and power consumption system |
TWM624764U (en) * | 2021-10-29 | 2022-03-21 | 晶朔科技有限公司 | Transmission circuit for ethernet |
TWM625463U (en) * | 2021-10-29 | 2022-04-11 | 晶朔科技有限公司 | Transmission circuit for ethernet |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN201207652Y (en) * | 2008-03-25 | 2009-03-11 | 富士康(昆山)电脑接插件有限公司 | Network interface circuit and electric connector having the circuit |
CN201985356U (en) * | 2011-03-14 | 2011-09-21 | 吴小荣 | Sheet inner core embedded five-port network interface |
CN102882074B (en) * | 2011-07-14 | 2015-12-02 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
CN102957148B (en) * | 2011-08-22 | 2015-05-06 | 富士康(昆山)电脑接插件有限公司 | Filter circuit |
CN202695878U (en) * | 2012-08-16 | 2013-01-23 | 乐清市华信电子有限公司 | Double-layer network interface with network transformer |
CN104104350A (en) * | 2013-04-11 | 2014-10-15 | 富士康(昆山)电脑接插件有限公司 | Filtering circuit and electric connector |
-
2015
- 2015-07-10 CN CN201510402226.9A patent/CN106340761B/en active Active
- 2015-07-30 TW TW104124628A patent/TWI590542B/en not_active IP Right Cessation
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Publication number | Publication date |
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CN106340761A (en) | 2017-01-18 |
TWI590542B (en) | 2017-07-01 |
CN106340761B (en) | 2018-08-31 |
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