TWM552703U - Coupling circuit of network signal - Google Patents

Description

Network signal coupling circuit

The present invention provides a coupling circuit for network signals, especially a coupling circuit capable of isolating instantaneous high voltage and interference signals, and setting a processing circuit between the network chip and the network connector, and then at least one group of circuit channels. The above circuit channels are respectively provided with conjugate coils, capacitors and autotransformers to achieve the purpose of isolating high voltage, anti-noise interference and coupling signals.

According to the rapid development of computer technology today, desktop computers or notebook computers have been widely used in every corner of the society, and their computer development trend is also moving toward the direction of computing power, speed and small size. Road communication technology is also rapidly developing and bringing people's life, study, work and leisure into a new realm that is different from the past, enabling people to transmit the required instant information through network communication. Advertising or mailing, etc., while searching for various information, instant messaging or online games through the Internet, the relationship between people and the Internet is more intense and inseparable.

The part of the network is to use two methods: cable connection and wireless transmission. The cable connection technology needs to be equipped with a network connector, and as the network is used more and more, the network transmits. The data capacity is also getting larger and larger. Network manufacturers have been increasing the speed of network transmission in order to meet the needs of users, from 10Mbps to 100Mbps or 1Gbps, and even the current optical network transmission speed can reach more than 10Gbps. However, when the network signal line is affected by lightning strikes, the network connector connected to the network signal line receives the instantaneous high voltage signal of the lightning strike, and the electronic components and the network electrically connected to the processing circuit are caused by the instantaneous high voltage. Damage to the chip, etc., in addition to affecting the unstable, interrupted or completely unreachable transmission of the incoming signal, or even causing the circuit board or electronic device (such as a computer or sharer) hosted on the network chip to be instantaneously high. The impact of voltage is faulty or damaged. The type of general network can be roughly classified into regional network, metro network, wide area network, wireless network, internet road, etc. according to the geographical scope covered by the computer. When the connection, uploading, downloading, etc. of the road signal is easy to be interfered by the noise of the surrounding electronic components, electromagnetic waves, etc., all of which will affect the instability of the network signal transmission, the filter component must be set in the network connector. For signal filtering, to reduce noise and electromagnetic interference.

In order to solve the problem of noise interference when transmitting signals in the network signal processing circuit, the circuit diagram of the conventional transmission network signal, as shown in the second figure, is on the network chip side A, the network signal side. On the signal line C between B, a parallel first coil module D and a tandem second coil module E are respectively arranged, and then a central tap E1 of the second coil module E is connected in series with the first capacitor E2. After being electrically connected to the ground side E3, the other side of the second coil module E to the center tap E4 is connected in series with the resistor E5 and the second capacitor E6, and electrically connected to the ground side E3, because the network wafer side A The positive and negative lines with the power supply must be isolated by the first capacitor E2 at the center tap E1 of the second coil module E to avoid short circuit between the positive and negative circuits transmitted to the ground side E3. 1. The second coil module D, E directs the interference noise on the signal line C to the ground side E3 of the other center tap E4 to be excluded; however, the instantaneous high voltage generated by the external lightning strike on the network signal side B When affected, the first and second coil modules D E and can not afford high-voltage transient impact, likely to cause The instantaneous high voltage is transmitted to the other side of the network chip side A through the signal line C, causing the network chip side A to be burned and broken due to the impact of the instantaneous high voltage, thereby causing the network signal transmission to be interrupted and unable to continue to be applied, and then implemented in practical applications. There are some shortcomings to be improved.

Therefore, how to solve the network signal transmission is easily interfered by external noise, which affects the problems and troubles of network signal instability, interruption, etc., and can not withstand the impact of burning, failure, etc. Inconvenience is the direction that the relevant manufacturers engaged in this industry are eager to study and improve.

Therefore, in view of the above problems and deficiencies, the creators have collected relevant information, evaluated and considered them through multiple parties, and through years of experience in the industry, through continuous trial and modification, they have designed a network through coupling circuits. The signal is filtered by external noise, and can be filtered out. When a lightning strike is made, a new type of patent for the coupling circuit of the network signal that reduces the overall circuit channel failure probability is generated.

The main purpose of the present invention is that the network chip of the coupling circuit is electrically connected to the network connector by using a plurality of circuit channels of the processing circuit, and at least one of the circuit channels is electrically connected with a conjugate coil and An autotransformer, wherein the processing circuit respectively series capacitors between the conjugate coil and the autotransformer between at least one of the circuit channels for forming an isolated high voltage (Hipot), a noise (Signal) or an electromagnetic wave The coupling circuit of the signal (EMI), and the coupling circuit is electrically connected to the ground side of the autotransformer to discharge the high voltage and the interference signal, and the coupling circuit is subjected to the lightning high voltage insulation resistance value is greater than 3KV, and the autotransformer The sensing value is between 100μH and 800μH, which can achieve high voltage isolation and can be coupled with signals.

The secondary purpose of the present invention is that the coupling circuit has a capacitor connected in series between the conjugate coil and the autotransformer in one or a group of circuit channels, and the power supply circuit of the network chip can form a capacitive coupling without short circuit. The stable operation of the circuit chip.

1‧‧‧Network Chip

11‧‧‧Feet set

111‧‧‧ pins

2‧‧‧Network connector

21‧‧‧Terminal group

211‧‧‧Terminal pins

3‧‧‧Processing circuit

31‧‧‧ Circuit Channel

4‧‧‧Conjugate coil

5‧‧‧Autotransformer

51‧‧‧ Grounding side

6‧‧‧ capacitor

A‧‧‧ network chip side

B‧‧‧Network signal side

C‧‧‧ signal line

D‧‧‧First coil module

E‧‧‧second coil module

E1‧‧‧Central tap

E2‧‧‧first capacitor

E3‧‧‧ grounding side

E4‧‧‧Central tap

E5‧‧‧resistance

E6‧‧‧second capacitor

The first picture is a simple circuit diagram of the creation.

The second diagram is a circuit diagram of a conventional transmission network signal.

In order to achieve the above objectives and effects, the technical means used in the creation, its construction, the method of implementation, etc., are described in detail in the preferred embodiment of the present invention, and the features and functions are as follows.

Please refer to the first figure, which is a simple circuit diagram of the creation. It can be clearly seen from the figure that the coupling circuit of the creation network signal includes the network chip 1, the network connector 2, and the processing circuit. 3. Conjugate coil 4 and autotransformer 5, wherein: The network chip 1 includes a pin set 11, and the pin set 11 is provided with a plurality of pins 111.

The network connector 2 includes a terminal group 21 having a plurality of terminal pins 211 that can transmit signals.

The processing circuit 3 includes at least one or more circuit channels 31.

When assembling the above components, at least one or more circuit channels 31 of the processing circuit 3 are electrically connected between the network chip 1 and the network connector 2, and the conjugate coils 4 are connected in parallel to at least one of the circuit channels 31. , series autotransformer 5, and conjugate coil 4 and auto-coupling At least one set of circuit paths 31 between the transformers 5, and then capacitors 6 are respectively connected in series, and electrically connected to the ground side 51 on one side of the autotransformer 5, and then the network chip 1 and the network connector 2. The processing circuit 3, at least one set of conjugate coils 4, at least one set of autotransformer 5 and capacitors 6 constitute a coupling circuit of the present network signal.

When the coupling circuit of the present invention is applied to transmit a network signal, the processing circuit 3 between the network chip 1 and the network connector 2 has at least one set of circuit channels 31, which can pass through at least one set of conjugate coils 4, at least A set of autotransformer 5 and capacitor 6 filter out the interference signal (EMI) including the signal, electromagnetic wave and the like in the transmitted network signal, and the at least one set of autotransformer 5 has its inductance The sensing value is between 100μH and 800μH, and the lightning resistance of the high-voltage (Hipot) is more than 3KV. When the network connector 2 is subjected to an external lightning strike, the high-voltage (Hipot) impact is generated. The network connector 2 enters at least one set of circuit channels 31 of the processing circuit 3, and the instantaneous high voltage can be transmitted to the ground side 51 of one side of the electrical connection through at least one set of autotransformers 5 to be vented. The effective isolation of the lightning strike instantaneous high voltage is transmitted to the network wafer 1 through at least one set of circuit channels 31, and can prevent the instantaneous high voltage generated by the lightning strike from causing the network wafer 1 to be burnt or malfunctioning.

Therefore, the above description is only a preferred embodiment of the present invention, and thus does not limit the scope of the patent of the creation. The coupling circuit of the creation network signal is set between the network chip 1 and the network connector 2. Processing circuit 3, and at least one set of conjugate coils 4, at least one set of autotransformer 5 in series, and at least one set of conjugate coils 4 and autotransformers 5 are connected in parallel on at least one or more circuit channels 31 of the processing circuit 3. The capacitor 6 is connected in series between the circuit channel 31, and the interference signal including the noise, electromagnetic wave and the like in the network signal transmitted by the processing circuit 3 is given. By filtering, and the network connector 2 is subjected to an external high voltage impact by an external lightning strike, the lightning high voltage impact of the lightning strike can be guided to the ground side 51 through at least one set of the autotransformer 5, without going to the other side of the network chip. 1 side transmission, 俾 can achieve the purpose of the processing circuit 3 to stably transmit the network signal, and avoid the network chip 1 being damaged by lightning, high voltage charging, burning or failure, etc., so the structure and device that can achieve the aforementioned effects are subject to All such modifications and equivalent structural changes are covered by this creation and are included in the scope of this creation patent and are given to Chen Ming.

Therefore, this design is mainly for the coupling circuit of the network signal, which uses the processing circuit between the network chip and the network connector to connect the conjugate coil and the series autotransformer to at least one group of circuit channels. And at least one set of conjugate coils and the autotransformer are connected in series with capacitors, thereby achieving the main protection focus of filtering the network interference signal and preventing the lightning high voltage impact, and between the network chip and the network connector. The network signal is not easy to be interrupted or disconnected, which only makes the processing circuit stably transmit the network signal, so as to ensure that the network chip is not easily burned or malfunction, but the above is only the preferred implementation of the creation. For example, the scope of patents of this creation is not limited to the extent of the patents, and the simple modifications and equivalent structural changes made by the use of this manual and the contents of the drawings shall be included in the scope of the patent of this creation, and shall be combined with Chen Ming. .

In summary, the coupling circuit of the above-mentioned network signal is actually implemented and implemented, so that it can achieve its efficacy and purpose. Therefore, this creation is a practical and excellent research and development, in order to meet the requirements of the new patent application.提出 Submit an application in accordance with the law, and hope that the trial committee will grant this case as soon as possible to protect the hard work of the creators. If there is any doubt in the bureau and your review committee, please do not hesitate to give instructions, the creators will try their best to cooperate and feel good.

1‧‧‧Network Chip

11‧‧‧Feet set

111‧‧‧ pins

2‧‧‧Network connector

21‧‧‧Terminal group

211‧‧‧Terminal pins

3‧‧‧Processing circuit

31‧‧‧ Circuit Channel

4‧‧‧Conjugate coil

5‧‧‧Autotransformer

51‧‧‧ Grounding side

6‧‧‧ capacitor

Claims (2)

A network signal coupling circuit includes a network chip, a processing circuit, a conjugate coil, an autotransformer, and a network connector for transmitting a network signal, and the network chip is electrically connected to the network connection by using the processing circuit. The processing circuit is configured to have a plurality of circuit channels between the network chip and the network connector, and at least one or more circuit channels are respectively electrically connected with a conjugate coil and an autotransformer. The improvement is that the processing circuit respectively connects a capacitor between the conjugate coil and the autotransformer between at least one of the circuit channels to form a coupling circuit for injecting a high voltage and an interference signal of the lightning strike, and the coupling circuit is in the autotransformer. The side electrical connection is used to discharge the ground side of the high voltage and the interference signal. The coupling circuit isolates the lightning resistance from a momentary high voltage insulation value greater than 3KV, and the autotransformer has an inductance value between 100μH and 800μH. The coupling circuit of the network signal according to claim 1, wherein the coupling circuit forms a capacitive coupling or a short circuit in a power supply circuit of the network chip in series between the conjugate coil and the autotransformer in at least one circuit channel. Capacitor.