CN103391089B - Network signal termination power - Google Patents
Network signal termination power Download PDFInfo
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- CN103391089B CN103391089B CN201310060329.2A CN201310060329A CN103391089B CN 103391089 B CN103391089 B CN 103391089B CN 201310060329 A CN201310060329 A CN 201310060329A CN 103391089 B CN103391089 B CN 103391089B
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Abstract
A kind of relevant network signal termination power of the present invention, the signal coupling circuit that its signal for being arranged on circuit board and being transmitted between network connector and network chip is coupled, signal coupling circuit is to be provided with the multiple passages with two circuits respectively, one or more passage is provided with coupling module, coupling module is provided with the first electric capacity with circuit, or parallel connection is provided with equivalent resistance respectively then at the end of the first electric capacity two, the equivalent earth terminal of signal is electrically connected at each equivalent resistance other end again, by electric capacity capacitive reactance frequency get over Gao Shihui with reduction, the decay of signal is allowed also to diminish, again because capacitance signal coupling characteristic then with frequency it is higher and with it is better, allowing network signal termination power to be used under network high still has good network signal coupling effect, and then reach the purpose of promotion signal coupling and laser propagation effect.
Description
Technical field
The present invention provides a kind of network signal termination power, espespecially to being transmitted between network connector and network chip
The signal coupling circuit that signal is coupled, it is the first electricity that coupling module is provided with one or more passage
Hold, or then at the end of the first electric capacity two to be parallel with equivalent resistance respectively, by frequency when higher capacitive reactance reduction and intensity increase
Characteristic, with promotion signal coupling effect.
Background technology
The fast development of computer technology now, and desktop computer or notebook computer are universal is present in society
Each corner, its computer development trend also towards calculation function is strong, speed fast and the direction of small volume strides forward, due to network communication skill
During art also flourishes rapidly, and bring people's life, study, work and leisure into another different conventional brand-new border
Boundary, required real time information, advertising or contact mail etc. are mutually transmitted by making between men by network communication, while
By the various information of Web search, instant messaging or online game etc., make relation between people and network more fervent and it is close not
Can divide.
But the part of network is to have using cable connection and two kinds of modes such as be wirelessly transferred and transmit data, cable connection skill
Art just needs to be equiped with network connector, and legacy network connector is, with transformer module and common mode suppression module, to refer to Fig. 7
Shown, the practice of general manufacturer is that transformation coil B and filter coil C are installed on circuit board A, and transformation coil B and filtering
Coil C is that in being arranged with wire D1 on core D, the joint of wire D1 ends is the contact for being welded in circuit board A, because coil is needed
Cause production efficiency low with winding by hand, more cannot automated production, coil is also easily broken off and allows cost to improve, and winding
The difference such as tight, distance, the number of turns also can impact effect, and cause product quality very different.
Furthermore, as the utilization of network is more and more wider, the data capacity of transmission over networks is also increasing, and network vendors are
The demand for meeting user just draws high the speed of network transmission always, from 10Mbps to 100Mbps or 1Gbps, or even now
The fiber optic network transmission speed released can reach more than 10Gbps, however, transformation coil B is inductance, the impedance (Z) of inductance claims
Be induction reactance, its unit is ohm (Ω), and the formula of induction reactance is：
Z=2 π * f*L
F is frequency in above-mentioned formula, and unit is hertz (Hz)；L is the inductance value of inductance, and unit is Henry (H), due to network
Connector is to isolate electrically simultaneously coupled signal using the inductance characteristic of transformation coil B, so in order to allow signal to be passed by primary side
Secondary side is delivered to, it is necessary to allow the transformation coil B there is predetermined inductance value, by above-mentioned formula it is known that induction reactance and working frequency
And inductance inductance value is directly proportional, thus signal frequency increase situation under, its induction reactance also can with increase (refer to shown in Fig. 8,
It is the comparing figure of the frequency with induction reactance of 350 μ H electric capacity), but induction reactance increase can allow the decay of signal to become big, so can produce
Network outage or the slack-off missing of network transfer speeds, please refer to shown in Fig. 9, it is known that when transformer from figure
When insertion loss is -3db, frequency response is about 0 ﹒ 45MHz~240MHz, because when exceeding insertion loss can be allowed quickly to increase
Plus, so the working frequency of transformer can only be in specifically narrower frequency range；Additionally, because the characteristic of transformation coil B is by low
The curve that frequency low-intensity, middle frequency high intensity and high-frequency low-intensity are formed, so being up to 1Gbps in network transfer speeds
When, the signal intensity of transformation coil B can be allowed to reduce on the contrary, and be difficult to reach the requirement for meeting product.
Therefore, how to solve bad existing transformation coil quality, high cost, cannot automated production and in network transmission high
During speed the problem of intensity decreases with missing, this be the present inventor be engaged in this journey dealer desire most ardently improvement target place.
Therefore, inventor, in view of above-mentioned missing, is to collect related data, assesses and considers via multi-party, and to engage in
The many years of experience of the industry accumulation, via constantly studying and changing, the invention that the beginning designs this kind of network signal termination power is special
Profit.
The content of the invention
The first object of the present invention is in that to provide a kind of network signal termination power, and the network chip is current-mode
Chip when, signal coupling circuit be provided with respectively with two circuits multiple passages, one or more passage is in two ends
Between be provided with coupling module, coupling module is provided with the first electric capacity with circuit, is carried with frequency by capacitance signal stiffness of coupling
The high and characteristic that increases simultaneously, then using the network signal coupling effect of the first electric capacity in high-frequency network can also improve, and enter
And reach the purpose of promotion signal coupling effect.
The second object of the present invention is in that to provide a kind of network signal termination power, and the network chip is current-mode
Chip when, coupling module is in the end of the first electric capacity two for parallel connection respectively is provided with equivalent resistance, and each equivalent resistance other end is then electrical
The equivalent earth terminal of signal is connected to, the equivalent earth terminal of signal that two equivalent resistances are connected respectively is the first earth terminal and power supply electricity
Pressure, the equivalent resistance connected respectively using two ends carries out the impedance matching of the first electric capacity.
The third object of the present invention is in that to provide a kind of network signal termination power, and the coupling module is with the first electric capacity
And two end equivalent resistance form π shapes loop, be typically directly welded at circuit because overall network signal coupling circuit only used
Electric capacity and voltage component on plate, thus product just can automated production, and electric capacity and voltage component can make QC when stocking up,
In allowing quality to maintain the standard of non-defective unit, and then can reach lifting product quality, the purpose of speed of production.
The fourth object of the present invention is in that to provide a kind of network signal termination power, and the network chip is voltage mode
Chip and output voltage to signal coupling circuit when, the coupling module of signal coupling circuit is with one or more passages
Each circuit is provided with the first electric capacity, is produced transient charge and is flowed away using the first electric capacity first end and the second end and reaches signal
The laser propagation effect of coupling, meanwhile, the first electric capacity can reach isolation again makes signal directly not pass through circuit.
The fifth object of the present invention is in that to provide a kind of network signal termination power, and the network chip is voltage mode
Chip when, coupling module is provided with the first electric capacity in each circuit of one or more passages, because the first electric capacity carries out charge and discharge
Speed when electric be it is relevant with time constant, and the first electric capacity capacitance increase after time constant also can with increase, so the
The capacitance of one electric capacity is the μ F of 100 μ F~0 ﹒ 01, and the optimal capacitance of the first electric capacity is the μ F of 0 ﹒ 1, allows the time of discharge and recharge just may be used
For complete signal transmission.
The sixth object of the present invention is in that to provide a kind of network signal termination power, and the signal coupling circuit can be in coupling
Matched moulds block is provided with filtration module adjacent to the second connection end side or neighbouring second connection end side, its filtration module can in one or
Each circuit of more than one passage is provided with inductance, or is in series with two second between two circuits of one or more passages
Electric capacity, is electrically connected at the second earth terminal between two the second electric capacity, just can reach using inductance or the second electric capacity to filter
Except the purpose of noise.
In order to achieve the above object, the present invention provides a kind of network signal termination power, and it includes being arranged at network
On the circuit board of chip, and circuit board is electrically connected with the signal coupling circuit to be coupled to signal with network connector again,
The signal coupling circuit is provided with the multiple passages with two circuits respectively, and one or more passage is connected with
There is a coupling module, coupling module is provided with the first electric capacity with circuit, parallel connection is provided with equivalent resistance to the end of the first electric capacity two respectively, then with
Each equivalent resistance other end is electrically connected at the equivalent earth terminal of signal.
Wherein, the end of the multiple passage two has the first connection end of connection network connector, connection network chip respectively
The second connection end, and one of them or more than one passage of multiple passage to be provided with filtration module and coupled mode respectively
Block, filtration module can be located at coupling module adjacent to the first connection end side or neighbouring second connection end side, and filtration module is with each
Two circuits of passage are electrically connected with adjacent first coil and the second coil.
Wherein, the first electric capacity of the one or more than one circuit of passage two and secondly end equivalent resistance shape in parallel
π shapes loop into π shapes loop, and two circuits is the end of the first electric capacity two of the two circuits equivalent resistance in parallel in symmetrical shape, its
The equivalent earth terminal of signal that the two equivalent resistance other ends of middle adjacent network chip are connected simultaneously is supply voltage, and adjacent network connects
The equivalent earth terminal of signal for connecing the two equivalent resistance other ends connection simultaneously of device is the first earth terminal.
Wherein, each circuit of the four-way be connection MD0+ and MX0+, MD0- and MX0- respectively, MD1+ and MX1+,
MD1- and MX1-, MD2+ and MX2+, MD2- and MX2-, MD3+ and MX3+, MD3- and MX3-.
In order to achieve the above object, the present invention provides a kind of network signal termination power, and it includes being arranged at network connection
On device internal circuit board, and network connector is electrically connected with network chip couples electricity with the signal coupled to signal again
Road,
The signal coupling circuit is to be provided with the multiple passages with two circuits respectively, and one or more passage connects
Coupling module is provided with, coupling module is provided with the first electric capacity with circuit, and parallel connection is provided with equivalent resistance to the end of the first electric capacity two respectively, electricity
It with two end equivalent resistances is to be matched by matching means to hold, then to be electrically connected at signal with each equivalent resistance other end equivalent
Earth terminal.
Wherein, the end of the multiple passage two has the first connection end of connection network connector, connection network chip respectively
The second connection end, and one of them or more than one passage of multiple passage to be provided with filtration module and coupled mode respectively
Block, filtration module can be located at coupling module adjacent to the first connection end side or neighbouring second connection end side, and filtration module is with each
Two circuits of passage are electrically connected with adjacent first coil and the second coil.
Wherein, the first electric capacity of two circuits of one or more than one passage and secondly end equivalent resistance in parallel
Form π shapes loops, and the π shapes loop of two circuits is the end of the first electric capacity two of the two circuits equivalent resistance in parallel in symmetrical shape,
The equivalent earth terminal of signal that wherein the two equivalent resistance other ends of adjacent network chip are connected simultaneously is supply voltage, adjacent network
The equivalent earth terminal of signal that the two equivalent resistance other ends of connector are connected simultaneously is the first earth terminal.
Wherein, each circuit of the four-way connect respectively MD0+ and MX0+, MD0- and MX0-, MD1+ and MX1+,
MD1- and MX1-, MD2+ and MX2+, MD2- and MX2-, MD3+ and MX3+, MD3- and MX3-.
In order to achieve the above object, the present invention provides a kind of network signal termination power, and it includes being arranged at network
On the circuit board of chip, and circuit board is electrically connected with the signal coupling circuit to be coupled to signal with network connector again,
The signal coupling circuit is provided with the multiple passages with two circuits respectively, and one or more passage is connected with
There are coupling module and filtration module, its coupling module is provided with the first electric capacity with circuit.
Wherein, the capacitance of first electric capacity is the μ F of 100 μ F~0 ﹒ 01.
Wherein, the capacitance of first electric capacity is the μ F of 0 ﹒ 1.
Wherein, the end of the multiple passage two has the first connection end of connection network connector, connection network chip respectively
The second connection end, filtration module can be located at coupling module adjacent to the first connection end side or neighbouring second connection end side.
Wherein, the filtration module is connected and is provided with inductance respectively with two circuits of one or more passages.
Wherein, the filtration module to be being in series with two the second electric capacity between two circuits of one or more passages, then
The second earth terminal is electrically connected between two the second electric capacity.
Wherein, each circuit of the four-way connect respectively MD0+ and MX0+, MD0- and MX0-, MD1+ and MX1+,
MD1- and MX1-, MD2+ and MX2+, MD2- and MX2-, MD3+ and MX3+, MD3- and MX3-.
In order to achieve the above object, the present invention provides a kind of network signal termination power, and it includes being arranged at network connection
On device internal circuit board, and network connector is electrically connected with network chip couples electricity with the signal coupled to signal again
Road,
The signal coupling circuit is provided with the multiple passages with two circuits respectively, and one or more passage is connected with
There are coupling module and filtration module, its coupling module is provided with the first electric capacity with circuit.
Wherein, the capacitance of first electric capacity is the μ F of 100 μ F~0 ﹒ 01.
Wherein, the capacitance of first electric capacity is the μ F of 0 ﹒ 1.
Wherein, the end of the multiple passage two has the first connection end of connection network connector, connection network chip respectively
The second connection end, filtration module is located at coupling module adjacent to the first connection end side or neighbouring second connection end side.
Wherein, the filtration module is connected and is provided with inductance respectively with two circuits of one or more passages.
Wherein, the filtration module to be being in series with two the second electric capacity between two circuits of one or more passages, then
The second earth terminal is electrically connected between two the second electric capacity.
Wherein, each circuit of the four-way connect respectively MD0+ and MX0+, MD0- and MX0-, MD1+ and MX1+,
MD1- and MX1-, MD2+ and MX2+, MD2- and MX2-, MD3+ and MX3+, MD3- and MX3-.
Brief description of the drawings
Fig. 1 is the block diagram of present pre-ferred embodiments.
Fig. 2 is the circuit diagram of signal coupling circuit of the present invention.
Fig. 3 is the comparing figure of frequency and capacitive reactance.
Fig. 4 is the block diagram of another embodiment of the present invention.
Fig. 5 is the circuit diagram of another embodiment of the present invention.
Fig. 6 is the circuit diagram of further embodiment of this invention.
Fig. 7 is existing stereo appearance figure.
Fig. 8 is the comparing figure of frequency and induction reactance.
Fig. 9 is the frequency response chart of existing transformer.
Description of reference numerals：1- signal coupling circuits；The connection ends of 10- first；The connection ends of 11- second；12- passages；121-
Circuit；13- filtration modules；131- first coils；The coils of 132- second；133- inductance；The electric capacity of 134- second；135- second is grounded
End；14- coupling modules；The electric capacity of 141- first；142- equivalent resistances；The equivalent earth terminal of 143- signals；The earth terminals of 1431- first；
1432- supply voltages；2- network connectors；3- network chips；4- circuit boards；A- circuit boards；B- transformation coils；C- wave filtering wires
Circle；D- cores；D1- wires.
Specific embodiment
To reach above-mentioned purpose and effect, the technology used in the present invention means and its construction, hereby draw just of the invention
Its feature of preferred embodiment elaborate is as follows with function, to understand completely.
Refer to shown in Fig. 1 to Fig. 3, be block diagram, the circuit diagram of signal coupling circuit, the frequency of present pre-ferred embodiments
Rate and the comparing figure of capacitive reactance, can be seen that the network signal termination power is arranged at the letter on circuit board 4 shown in figure
Number termination power 1, and two ends electrically conduct in the first connection end 10 of network connector 2 and electrically conduct in network chip respectively
3 the second connection end 11, network chip 3 is the chip of current-mode, so network chip 3 outputs current to signal coupling circuit
1, its signal coupling circuit 1 is provided with the multiple passages 12 with two circuits 121 respectively, and one or more passage 12 is connected with
(filtration module 13 can be located at coupling module 14 adjacent to the side of the first connection end 10 or neighbouring filtration module 13 and coupling module 14
The side of second connection end 11), its filtration module 13 is provided with first coil 131 and second respectively with two circuits 121 of passage 12
Coil 132, coupling module 14 is then provided with the first electric capacity 141, and the end of the first electric capacity 141 2 to be parallel with respectively with circuit 121
Equivalent resistance 142, then the equivalent earth terminal 143 of signal is electrically connected at the other end of each equivalent resistance 142.
The coil 132 of first coil 131 and second that above-mentioned two circuit 121 is connected with respectively, it is adjacent to carry out signal filter
Ripple treatment, wherein the equivalent resistance 142 that first electric capacity 141 is connected in neighbouring one end of first connection end 10, its other end
The equivalent earth terminal 143 of signal of electric connection is the first earth terminal 1431, and what neighbouring one end of second connection end 11 was connected etc.
Effect resistance 142, its other end be electrically connected with the equivalent earth terminal 143 of signal be supply voltage 1432, and each passage 12 two electricity
Its other end of equivalent resistance 142 that is connected adjacent to the one end of the first connection end 10 of road 121 is connectable connect after be then connected to first and connect
Ground terminal 1431, the other end of equivalent resistance 142 that it is connected adjacent to the one end of the second connection end 11 also it is connectable connect after be then connected to
Supply voltage 1432.
The signal coupling circuit 1 is electrically connected at each terminal of network connector 2, and signal coupling with the first connection end 10
It is multiple pins that network chip 3 is electrically connected at the second connection end 11, each circuit 121 of its multiple passage 12 to close circuit 1
Respectively connection MD0+ and MX0+, MD0- and MX0-, MD1+ and MX1+, MD1- and MX1-, MD2+ and MX2+, MD2- with
MX2-, MD3+ and MX3+, MD3- and MX3-, the visual actual design demand in its position conversion are non-therefore limit to of the invention
The scope of the claims.
Above-mentioned coupling module 14 is with the first electric capacity 141 being connected with a circuit 121 and secondly the shape of two equivalent resistance 142 at end
Into π shapes loop, and two circuits 121 π shapes loop be in symmetrical shape, the end of the first electric capacity 141 2 of two circuits 121 it is in parallel etc.
Effect resistance 142, the wherein other end of two equivalent resistance 142 of adjacent network chip 3 are while the equivalent earth terminal 143 of signal for connecting is
First earth terminal 1431, the equivalent earth terminal of signal of the other end of two equivalent resistance 142 connection simultaneously of adjacent network connector 2
143 is supply voltage 1432, mainly allows two terminal circuit to couple with the first electric capacity 141, and it is equivalent that two ends of recycling connect respectively
Resistance 142 carries out impedance matching, and to meet the demand of different use environments, the first electric capacity 141 after its matching is μ farads of 0 ﹒ 1
(F), the equivalent resistance 142 of the side of 141 adjacent network chip of the first electric capacity 3 is 9 ohm of 49 ﹒ (Ω), adjacent network connector 2
Another side equivalent resistance 142 is 75 ohm (Ω), and the impedance (Z) of its electric capacity is referred to as capacitive reactance, and its unit is ohm (Ω), the public affairs of capacitive reactance
Formula is：
Z=1/ (2 π * f*C)
F is frequency in above-mentioned formula, and unit is hertz (Hz)；C is the capacitance of electric capacity, and unit is farad (F), due to being profit
Isolate electric and coupled signal with the characteristic of electric capacity, by above-mentioned formula it is known that capacitive reactance and working frequency and capacitor's capacity
Be inversely proportional, thus using identical capacitance the first electric capacity 141 and signal frequency increase situation under, its capacitive reactance can with reduction
(referring to shown in the 3rd figure, it is the comparing figure of the frequency with capacitive reactance of the μ F electric capacity of 0 ﹒ 01), then the decay of signal can also diminish, just
Can have good network connectivity and signaling rate can also accelerate, due to make use of electric capacity in the state of frequency is higher its
Intensity also can with increase characteristic, in network today frequency (frequency range) higher and higher situation (be more than 1Gbps), allow electric capacity profit
Make signal with the direct current electric forming electric field induction of isolation computer to couple, and the characteristic of electric capacity can also allow the coupling of high frequency network signal
Close effect with raising.
Furthermore, refer to Fig. 1, be block diagram, the block diagram of another embodiment of present pre-ferred embodiments shown in 4, by
It can be seen that the circuit board 4 that sets of the signal coupling circuit 1, can be provided directly with network chip 3 shown in figure, then with net
Multiple terminals of network connector 2 are electrically connected with；And the circuit board 4 that signal coupling circuit 1 is set also may be disposed at network connector 2
Inside, then network connector 2 is electrically connected at the external circuit board, and formed with the network chip 3 of setting on the external circuit board
It is electrically connected with, it only has the function that the signal transmitted between network connector 2 and network chip 3 is coupled and filtered i.e.
Can, but related network connector 2 and network chip 3 are configured to existing technology, and the thin portion constitutes non-this case invention
Main points, hereby repeat no more.
Two equivalent resistances 142 of above-mentioned coupling module 14 a, wherein equivalent resistance 142 can be to be plugged in network connector 2
The equivalent resistance that has of cable in itself, another equivalent resistance 142 can be then the inside equiva lent impedance of network chip 3, and it only has
The function of being matched with the first electric capacity 141, it is non-therefore i.e. limit to the scope of the claims of the invention, such as using other modification and it is equivalent
Structure change, all should similarly be contained in the scope of the claims of the invention, and Chen Ming is given in conjunction.
Separately, refer to Fig. 5, be the circuit diagram, the circuit diagram of another embodiment of another embodiment of the present invention, by scheming shown in 6
Shown in it can be seen that, in another embodiment and another embodiment, the network chip 3 be output voltage to signal couple
Circuit 1, signal coupling circuit 1 is that one or more passages 12 are provided between the first connection end 10 and the second connection end 11
Coupling module 14, coupling module 14 is provided with the first electric capacity 141, and letter with each circuit 121 of one or more passages 12
Number termination power 1 can be provided with filtration module 13 in coupling module 14 adjacent to the side of the second connection end 11, and its filtration module 13 can be in
Each circuit 121 of one or more passages 12 is provided with inductance 133, or in two circuits of one or more passages 12
Two the second electric capacity 134 are in series between 121, the second earth terminal 135 is electrically connected between two the second electric capacity 142, this
Outward, because filtration module 13 is only that noise filtering is carried out to signal, it is neighbouring that filtration module 13 may be disposed at coupling module 14
The side of second connection end 11 or the neighbouring side of second connection end 11, and can all have noise filtering effect.
Above-mentioned network chip 3 is the chip of voltage mode, so network chip 3 supplies driving voltage to signal coupling circuit
1, because signal in transmission is changed with voltage one, in the network chip 3 using current-mode, its coupling module
14 need to provide resistance could produce voltage to carry out signal transmission, just be not necessary to set resistance using the network chip 3 of voltage mode,
So coupling module 14 only need to be provided with the first electric capacity 141 in each circuit 121 of one or more passages 12, because the first electricity
Hold 141 characteristic when supply voltage is flow to its first end, its first end can be allowed to produce transient charge (such as positive electricity of single polarity
Lotus), and the end of the first electric capacity 141 second can then produce the transient charge (such as negative electrical charge) of another polarity, and predetermined by one section
After time stop supply positive charge to the first 141 first end of electric capacity when, its end of the first electric capacity 141 second then can by negative electrical charge along
Circuit 121 pours off, and will reach the laser propagation effect of signal coupling, meanwhile, the first electric capacity 141 will not allow signal directly to pass through again
Circuit 121, however, because speed when the first electric capacity 141 carries out discharge and recharge is relevant with time constant, the time must be allowed
Constant is arranged in pairs or groups with the signal period, and the time of discharge and recharge could be allowed just to be available for complete signal to transmit, without truncated signal, and the
The capacitance of one electric capacity 141 increase after time constant also can with increase, so the capacitance of the first electric capacity 141 is the μ of 100 μ F~0 ﹒ 01
F, and the optimal capacitance of the first electric capacity 141 is the μ F of 0 ﹒ 1.
Furthermore, because other signals are had during signal transmission coming in, noise can have been produced, so needing noise
Filter, its filtration module 13 can be provided with inductance 133 (such as magnetic bead, core in the series connection of each circuit 121 of one or more passages 12
Piece magnetic bead, plug-in unit magnetic bead, wire-wound inductor, chip inductance, plug-in unit inductance or common mode inductance etc.), or it is logical in one or more
Two the second electric capacity 134 are in series between two circuits 121 in road 12, second is electrically connected between two the second electric capacity 134
Earth terminal 135, above-mentioned inductance 133 is the characteristic with LPF (LowPass), just can be by the higher-frequency in signal frequency range
Noise filtering, and the second electric capacity 134 is because have the effect of high-pass filtering (HighPass), and with the capacitance of the second electric capacity 134
Reduce its signal frequency that can filter will with increase, let the signal go through to can adjust the capacitance of the second electric capacity 134
But noise is to be filtered out, and then reach the effect for filtering low-frequency noise.
The network signal termination power of the invention described above when actually used, with following advantage, such as：
(1) when the network chip 3 is the chip of current-mode, signal coupling circuit 1 is multiple respectively with two to be provided with
The passage 12 of circuit 121, and one or more passage 12 is connected between the first connection end 10 and the second connection end 11
There is coupling module 14, its coupling module 14 is then provided with the first electric capacity 141 with circuit 121, and the end of the first electric capacity 141 2 difference is simultaneously
Connection is provided with equivalent resistance 142, then is electrically connected at the equivalent earth terminal 143 of signal with the other end of each equivalent resistance 142, by electric capacity
In the state of frequency is higher its signal stiffness of coupling also can with increase characteristic, when making network higher, the net of electric capacity
Network signal coupling effect also with raising.
(2) when the network chip 3 is the chip of current-mode, the end of the first electric capacity 141 2 of coupling module 14 is difference
Parallel connection is provided with equivalent resistance 142, then is electrically connected at the equivalent earth terminal 143 of signal with the other end of each equivalent resistance 142, and two is equivalent
The equivalent earth terminal 143 of signal that resistance 142 is connected respectively is the first earth terminal 1431 and supply voltage 1432, is using two ends point
The equivalent resistance not connected carries out the impedance matching of electric capacity.
(3) because coupling module 14 is to be provided with equivalent resistance 142 by parallel connection respectively of the end of the first electric capacity 141 2, then with each
The other end of equivalent resistance 142 is electrically connected at the equivalent earth terminal 143 of signal, allow the first electric capacity 141 and secondly end connection it is equivalent
Resistance 142 forms π shapes loop, and it only used general electronic component finished product, because being not necessary to artificial coiling, but directly welds
On circuit boards, so automated production can be made, and electronic component finished product can carry out qualitative control in purchase, so product
Quality be held in non-defective unit scope.
(4) when the network chip 3 is the chip and output voltage to signal coupling circuit 1 of voltage mode, signal coupling
The coupling module 14 of circuit 1 is provided with the first electric capacity 141 with each circuit 121 of one or more passages 12, using first
The first end of electric capacity 141 and the second end produce transient charge and the effect that flows away reaches the laser propagation effect of signal coupling, meanwhile,
First electric capacity 141 can reach isolation again makes signal directly not pass through circuit 121.
(5) when the network chip 3 is the chip of voltage mode, coupling module 14 is in one or more passages 12
Each circuit 121 be provided with the first electric capacity 141, speed when carrying out discharge and recharge because of the first electric capacity 141 is relevant with time constant, and
The capacitance of the first electric capacity 141 increase after time constant also can with increase, so the capacitance of the first electric capacity 141 is 100 μ F~0 ﹒
01 μ F, and the optimal capacitance of the first electric capacity 141 is the μ F of 0 ﹒ 1, allows the time of discharge and recharge to be just available for complete signal to transmit.
(6) signal coupling circuit 1 can be in coupling module 14 adjacent to the side of the second connection end 11 or neighbouring second connection end 11
Side is provided with filtration module 13, and its filtration module 13 can be provided with inductance in each circuit 121 of one or more passages 12
133, or two the second electric capacity 134 are in series between two circuits 121 of one or more passages 12, then at two second electricity
The second earth terminal 135 is electrically connected between holding 134, noise is filtered by the electric capacity 134 of inductance 133 or second.
Therefore, the present invention is that, mainly for network signal termination power, it is to be provided with to have two respectively in signal coupling circuit 1
Multiple passages 12 of circuit, are connected between end the first connection end 10 of one or more passage 12 2, the second connection end 11
Have a coupling module 14, coupling module 14 is then provided with the first electric capacity 141 with circuit 121, or then at and the end of the first electric capacity 141 2 point
Parallel connection is not provided with equivalent resistance 142, then is electrically connected at the equivalent earth terminal 143 of signal with the other end of each equivalent resistance 142, utilizes
Capacitive strength increase allow network signal coupling effect also with raising characteristic, to reach the advantage of promotion signal coupling effect,
But, the foregoing is only presently preferred embodiments of the present invention, it is non-therefore limit to the scope of the claims of the invention, therefore transport such as
Changed with the simple modification carried out by description of the invention and schema content and equivalent structure, all should be similarly contained in of the invention special
In sharp scope, Chen Ming is given in conjunction.
In sum, the above-mentioned network signal termination power of the present invention is that can reach its effect really when implementing, operating
And purpose, therefore the present invention is really the invention that a practicality is excellent, to meet the application important document of patent of invention, whence proposes Shen in accordance with the law
Please.
Claims (10)
1. a kind of network signal termination power, it is characterised in that it includes being arranged on the circuit board with network chip, and electricity
Road plate is electrically connected with the signal coupling circuit to be coupled to signal with network connector again,
The signal coupling circuit is provided with multiple passages, and each passage includes the first circuit and second circuit, first circuit
Be connected in parallel with the second circuit, the two ends of the multiple passage have respectively connection network connector the first connection end and
The second connection end of network chip is connected, each passage is provided with coupling module and filtration module,
In each passage：
Filtration module is located at coupling module adjacent to the first connection end side or neighbouring second connection end side, and filtration module includes phase
To the first coil for setting and the second coil, the first coil is located on first circuit, and second coil is located at institute
State on second circuit, coupling module includes the first electric capacity, the second electric capacity, the first equivalent resistance, the second equivalent resistance, third equivalent
Resistance and the 4th equivalent resistance, first electric capacity are located on first circuit, and second electric capacity is located at the described second electricity
Lu Shang,
One end that first electric capacity closes on the second connection end connects described first equivalent resistance one end,
One end that first electric capacity closes on the first connection end connects described second equivalent resistance one end,
One end that second electric capacity closes on the second connection end connects described third equivalent resistance one end,
One end that second electric capacity closes on the first connection end connects described 4th equivalent resistance one end,
The second equivalent resistance other end, the 4th equivalent resistance other end are commonly connected to earth terminal,
The first equivalent resistance other end, the third equivalent resistance other end are commonly connected to supply voltage.
2. network signal termination power according to claim 1, it is characterised in that in each passage, first electric capacity
And its two ends first equivalent resistance in parallel and second equivalent resistance form a π shapes loop, second electric capacity
And its two ends third equivalent resistance in parallel and the 4th equivalent resistance form the 2nd π shapes loop, a π shapes are returned
Road is in symmetrical shape with the 2nd π shapes loop.
3. a kind of network signal termination power, it is characterised in that it includes being arranged on network connector internal circuit board, and net
Network connector is electrically connected with the signal coupling circuit to be coupled to signal with network chip again,
The signal coupling circuit is provided with multiple passages, and each passage includes the first circuit and second circuit, first circuit
Be connected in parallel with the second circuit, the two ends of the multiple passage have respectively connection network connector the first connection end and
The second connection end of network chip is connected, each passage is provided with coupling module and filtration module,
In each passage：
Filtration module is located at coupling module adjacent to the first connection end side or neighbouring second connection end side, and filtration module includes phase
To the first coil for setting and the second coil, the first coil is located on first circuit, and second coil is located at institute
State on second circuit, coupling module includes the first electric capacity, the second electric capacity, the first equivalent resistance, the second equivalent resistance, third equivalent
Resistance and the 4th equivalent resistance, first electric capacity are located on first circuit, and second electric capacity is located at the described second electricity
Lu Shang,
One end that first electric capacity closes on the second connection end connects described first equivalent resistance one end,
One end that first electric capacity closes on the first connection end connects described second equivalent resistance one end,
First electric capacity is matched with first equivalent resistance and second equivalent resistance by matching means,
One end that second electric capacity closes on the second connection end connects described third equivalent resistance one end,
One end that second electric capacity closes on the first connection end connects described 4th equivalent resistance one end,
Second electric capacity is matched with the third equivalent resistance and the 4th equivalent resistance by matching means,
The second equivalent resistance other end, the 4th equivalent resistance other end are commonly connected to earth terminal,
The first equivalent resistance other end, the third equivalent resistance other end are commonly connected to supply voltage.
4. network signal termination power according to claim 3, it is characterised in that in each passage, first electric capacity
And its two ends first equivalent resistance in parallel and second equivalent resistance form a π shapes loop, second electric capacity
And its two ends third equivalent resistance in parallel and the 4th equivalent resistance form the 2nd π shapes loop, a π shapes are returned
Road is in symmetrical shape with the 2nd π shapes loop.
5. a kind of network signal termination power, it is characterised in that it includes being arranged on the circuit board with network chip, and electricity
Road plate is electrically connected with the signal coupling circuit to be coupled to signal with network connector again,
The signal coupling circuit is provided with multiple passages, and each passage includes the first circuit and second circuit, first circuit
Be connected in parallel with the second circuit, the two ends of the multiple passage have respectively connection network connector the first connection end and
The second connection end of network chip is connected, each passage is provided with coupling module and filtration module,
In each passage：
Filtration module is located at coupling module adjacent to the first connection end side or neighbouring second connection end side, and filtration module includes phase
To the first inductance and the second inductance that set, first inductance is located on first circuit, and second inductance is located at institute
State on second circuit, coupling module includes the first electric capacity and the second electric capacity, first electric capacity is located on first circuit, institute
The second electric capacity is stated to be located on the second circuit,
The one end of the two ends of first inductance respectively with second connection end and first electric capacity is connected,
The one end of the two ends of second inductance respectively with second connection end and second electric capacity is connected,
The other end of first electric capacity is connected with first connection end,
The other end of second electric capacity is connected with first connection end.
6. network signal termination power according to claim 5, it is characterised in that first electric capacity and the second electric capacity
Capacitance is the μ F of 100 μ F~0 ﹒ 01.
7. network signal termination power according to claim 6, it is characterised in that first electric capacity and the second electric capacity
Capacitance is the μ F of 0 ﹒ 1.
8. a kind of network signal termination power, it is characterised in that it includes being arranged on network connector internal circuit board, and net
Network connector is electrically connected with the signal coupling circuit to be coupled to signal with network chip again,
The signal coupling circuit is provided with multiple passages, and each passage includes the first circuit and second circuit, first circuit
Be connected in parallel with the second circuit, the two ends of the multiple passage have respectively connection network connector the first connection end and
The second connection end of network chip is connected, each passage is provided with coupling module and filtration module,
In each passage：
Filtration module is located at coupling module adjacent to the first connection end side or neighbouring second connection end side, and filtration module includes the
One electric capacity and the second electric capacity, coupling module include the 3rd electric capacity and the 4th electric capacity, and the 3rd electric capacity is located at first circuit
On, the 4th electric capacity is located on the second circuit,
One end of first electric capacity is connected with first circuit,
One end of second electric capacity is connected with the second circuit,
The other end of first electric capacity, the other end of second electric capacity are commonly connected to earth terminal.
9. network signal termination power according to claim 8, it is characterised in that the 3rd electric capacity and the 4th electric capacity
Capacitance is the μ F of 100 μ F~0 ﹒ 01.
10. network signal termination power according to claim 9, it is characterised in that the 3rd electric capacity and the 4th electric capacity
Capacitance be the μ F of 0 ﹒ 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310060329.2A CN103391089B (en) | 2012-05-08 | 2013-02-26 | Network signal termination power |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210140584 | 2012-05-08 | ||
| CN201210140584.3 | 2012-05-08 | ||
| CN2012101405843 | 2012-05-08 | ||
| CN201310060329.2A CN103391089B (en) | 2012-05-08 | 2013-02-26 | Network signal termination power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103391089A CN103391089A (en) | 2013-11-13 |
| CN103391089B true CN103391089B (en) | 2017-06-20 |
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ID=49535265
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310060329.2A Expired - Fee Related CN103391089B (en) | 2012-05-08 | 2013-02-26 | Network signal termination power |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7200186B2 (en) * | 2002-03-14 | 2007-04-03 | Intel Corporation | Methods and apparatus for reducing power usage of a transmitter and receiver coupled via a differential serial data link |
| CN201312033Y (en) * | 2008-12-10 | 2009-09-16 | 深圳市方向电子有限公司 | Network connector with wave filter |
| TW200945383A (en) * | 2008-04-30 | 2009-11-01 | Unihan Corp | Network transformer and network module and electronic device using the same |
| CN201887200U (en) * | 2010-11-02 | 2011-06-29 | 弘邺科技有限公司 | Filtering device of network connector |
| TWM408850U (en) * | 2011-03-04 | 2011-08-01 | nai-qian Zhang | Improved connector structure with protection device |
-
2013
- 2013-02-26 CN CN201310060329.2A patent/CN103391089B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7200186B2 (en) * | 2002-03-14 | 2007-04-03 | Intel Corporation | Methods and apparatus for reducing power usage of a transmitter and receiver coupled via a differential serial data link |
| TW200945383A (en) * | 2008-04-30 | 2009-11-01 | Unihan Corp | Network transformer and network module and electronic device using the same |
| CN201312033Y (en) * | 2008-12-10 | 2009-09-16 | 深圳市方向电子有限公司 | Network connector with wave filter |
| CN201887200U (en) * | 2010-11-02 | 2011-06-29 | 弘邺科技有限公司 | Filtering device of network connector |
| TWM408850U (en) * | 2011-03-04 | 2011-08-01 | nai-qian Zhang | Improved connector structure with protection device |
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| Publication number | Publication date |
|---|---|
| CN103391089A (en) | 2013-11-13 |
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