CN205945799U - Ethernet switch and receive electric supply circuit thereof - Google Patents
Ethernet switch and receive electric supply circuit thereof Download PDFInfo
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- CN205945799U CN205945799U CN201620900956.1U CN201620900956U CN205945799U CN 205945799 U CN205945799 U CN 205945799U CN 201620900956 U CN201620900956 U CN 201620900956U CN 205945799 U CN205945799 U CN 205945799U
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Abstract
The utility model belongs to the technical field of the ethernet, a ethernet switch and receive electric supply circuit thereof is provided. The utility model discloses in, include the electric supply circuit that receives who receives electric module, power module, mainboard power module, receives electric detection module, control module and switch chip through adopting for receive electric module to send the direct current to power module, mainboard power module and receive electric detection module, and with data transmission to switch chip, power module outwards supplies power according to the direct current, mainboard power module carries on to supplied power by electric detection module, control module and switch chip behind the voltage conversion the direct current, receive electric detection module according to direct current output detection signal to control module, control module is according to detecting signal output control signal, and the switch chip is according to detecting the signal control network port break -make to go out data transmission, solved that there is the circuit structure complicacy in current POE switch, the fault rate is high, with high costs and the uncontrollable problem of non - power supply network port.
Description
Technical field
This utility model belongs to ethernet technology field, more particularly, to a kind of Ethernet switch and its by electricity power supply electricity
Road.
Background technology
At present, active Ethernet (Power Over Ethernet, POE) power supply, powered Ethernet exchanging machine equipment by
Obtain in internet arena the advantages of simple, easy construction is installed and be widely applied.And the POE switch released on market
Chip functions single, its can only carry out single port power or single port be subject to electricity.
In order to solve the above problems, prior art adopts many power supply chips and by electrical chip in POE switch, but
This method makes the circuit structure of POE switch complicated, and then the problems such as the increase of causing trouble rate, high cost；Additionally, it is above-mentioned
When some network port of POE switch is powered, not only this supply network port can be communicated method, other network-side
Mouthful also can be communicated, so lead to POE switch to the non-powered network port uncontrollable problem.
In sum, there is circuit structure complexity, fault rate height, high cost and non-powered network in existing POE switch
The uncontrollable problem in port.
Utility model content
The purpose of this utility model is to provide a kind of Ethernet switch and its by electric power supply circuits it is intended to solve existing
POE switch have that circuit structure is complicated, fault rate is high, high cost and the uncontrollable problem of the non-powered network port.
This utility model be achieved in that a kind of Ethernet switch by electric power supply circuits, described by electricity power supply electricity
Road and externally fed equipment and outside power receiving equipment are connected, and described are included by electric module, supply module, master by electric power supply circuits
Plate power module, by electro-detection module, control module and exchanger chip；
The described FPDP by electric module is connected with the network port of described exchanger chip, described defeated by electric module
Go out end and the input of described supply module, the input of described motherboard power supply module and described by the first of electro-detection module
Input connects；The FPDP of described supply module is connected with the network port of described exchanger chip；Described motherboard power supply
The outfan output services unidirectional current of module, the outfan of described motherboard power supply module is second defeated by electro-detection module with described
The voltage input end entering end, the voltage input end of described control module and described exchanger chip connects；Described by electro-detection
The outfan of module is connected with the signal input part of described control module；The signal output part of described control module and described exchange
The signal input part of movement piece connects；
Described received the unidirectional current that provides of described externally fed equipment and data by electric module, and described unidirectional current is sent
To described supply module, described motherboard power supply module and described by electro-detection module；Described supply module is according to described direct current
Electricity is powered to described outside power receiving equipment；Described motherboard power supply module carries out voltage conversion to described unidirectional current, and according to conversion
Working direct current electricity afterwards is powered to described by electro-detection module, described control module and described exchanger chip；Described by electricity
Detection module is according to described direct current electricity output detection signal to described control module；Described control module is entered to described detection signal
Output control signal after row process, described exchanger chip identifies described control signal, and controls net according to described control signal
The break-make of network port, the described data being received by electric module is sent through described supply module and is set by electricity to described outside
Standby.
Another object of the present utility model also resides in a kind of Ethernet switch of offer, and described Ethernet switch includes
State by electric power supply circuits.
In this utility model, by using include by electric module, supply module, motherboard power supply module, be subject to electro-detection mould
Block, control module and exchanger chip by electric power supply circuits so that unidirectional current is sent to supply module, master by electric module
Plate power module and be subject to electro-detection module, and sends data to exchanger chip；Supply module is according to unidirectional current to outside
Power receiving equipment is powered；Motherboard power supply module carries out voltage conversion and is subject to electro-detection module, control module and friendship backward to unidirectional current
Change planes chip power supply；By electro-detection module according to direct current electricity output detection signal to control module；Control module is according to detection letter
Number output control signals to exchanger chip, exchanger chip according to the break-make of control signal controlling network port, by data
Send to outside power receiving equipment through supply module, due to this circuit by by electro-detection module to Ethernet switch by electricity
Situation is detected, so make exchanger chip the network port controlled, and this circuit is without using multiple power supply chips
With by electrical chip, structure is simple, and low cost, solve existing POE switch and have that circuit structure is complicated, fault rate is high,
High cost and the uncontrollable problem of the non-powered network port.
Brief description
Fig. 1 is the modular structure schematic diagram by electric power supply circuits that this utility model one embodiment is provided；
Fig. 2 is the modular structure schematic diagram by electric power supply circuits that another embodiment of this utility model is provided；
Fig. 3 be this utility model one embodiment provided by electric power supply circuits by electric module, supply module and master
The electrical block diagram of plate power module；
Fig. 4 be this utility model one embodiment provided by electric power supply circuits by electro-detection module, control module with
And the electrical block diagram of exchanger chip.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only in order to explain
This utility model, is not used to limit this utility model.
Below in conjunction with concrete accompanying drawing, realization of the present utility model is described in detail：
Fig. 1 shows that the Ethernet switch that this utility model one embodiment is provided is tied by the module of electric power supply circuits
Structure, for convenience of description, illustrate only the part related to this utility model embodiment, details are as follows：
As shown in figure 1, this utility model embodiment provide included by electric module 10, supply module by electric power supply circuits
11st, motherboard power supply module 12, by electro-detection module 13, control module 14 and exchanger chip 15.
Wherein, it is connected with the network port of exchanger chip 15 by the FPDP of electric module 10, defeated by electric module 10
Go out end to be connected with the input of supply module 11, motherboard power supply module 12 and the first input end by electro-detection module 13；For
The FPDP of electric module 11 is connected with the network port of exchanger chip 15；The outfan output services of motherboard power supply module 12
Unidirectional current, and the outfan of motherboard power supply module 12 and the second input by electro-detection module 13, the electricity of control module 14
The voltage input end of pressure input and exchanger chip 15 connects；Outfan and control module 14 by electro-detection module 13
Signal input part connects；The signal output part of control module 14 is connected with the signal input part of exchanger chip 15.
Specifically, received, by electric module 10, unidirectional current and the data that externally fed equipment 20 provides, and unidirectional current is sent
To supply module 11, motherboard power supply module 12 and be subject to electro-detection module 13；Supply module 11 is according to unidirectional current to external outer
Portion's power receiving equipment 30 is powered；Motherboard power supply module 12 carries out voltage conversion to unidirectional current, and according to the working direct current electricity after conversion
Power to by electro-detection module 13, control module 14 and exchanger chip 15；By electro-detection module 13 according to direct current electricity output
Detection signal is to control module 14；Control module 14 detection signal is processed after output control signal, exchanger chip 15
Identification control signal, and the break-make according to control signal controlling network port, by the data being received by electric module 10 through supplying
Electric module 11 sends to outside power receiving equipment 30.
It should be noted that in the present embodiment, galvanic voltage value is 48V, the value of supply voltage and direct current
The voltage value of electricity is identical, and the voltage value of working direct current electricity is 3.3V.
Further, as this utility model one preferred implementation, as shown in Fig. 2 being included being connect by electricity by electric module 10
Mouthful unit 100 with by electric unit 101.
Wherein, it is the FPDP by electric module 10 by the data-interface of electric interface unit 100, by electric interface unit 100
Be connected with the input by electric unit 101 by electrical interface, the outfan by electric unit 101 is subject to by electric interface unit 100
Electrical interface forms the outfan by electric module 10.
Specifically, by electric unit 101 by by electric interface unit 100 receive externally fed equipment 20 provide unidirectional current with
Data, and unidirectional current is sent supply module 11 and motherboard power supply module 12, by electric interface unit 100 by direct current electricity output to being subject to
Electro-detection module 13, is sent data to exchanger chip 15 by electric interface unit 100.
Further, as this utility model one preferred implementation, as shown in figure 3, included many by electric interface unit 100
Individual by electrical interface chip RJ45, included multiple first diode D1 by electric unit 101.
Multiple data pin Y1 compositions by electrical interface chip RJ45 are by the data-interface of electric interface unit 100, Duo Geshou
The voltage pin Y2 composition of electrical interface chip RJ45 is by electric interface unit 100 by electrical interface, the sun of multiple first diode D1
By the input of electric unit 101, the negative electrode composition of multiple second diode D1 is subject to the outfan of electric unit 101 to pole composition, each
Voltage pin Y2 by electrical interface chip RJ45 is connected one to one with the anode of each the first diode D1；Need explanation
Be, in the present embodiment, by data pin Y1 of electrical interface chip RJ45 refer to this be subject to electrical interface chip RJ45 pin 1 or
Pin 2, or should be referred to this by the pin 3 of electrical interface chip or pin 6, voltage pin Y2 by electrical interface chip RJ45
By pin 4 or the pin 5 of electrical interface chip RJ45, should be grounded by the pin Y3 of electrical interface chip RJ45, this pin 3 refers to be subject to
The grounding pin 7 of electrical chip RJ45 or grounding pin 8.
It should be noted that in the present embodiment, the number by electrical interface chip RJ45 in circuit shown in Fig. 3 is 7,
Certainly 7 should be not limited to by the number of electrical interface chip RJ45 interface, its can according to the network port of Ethernet switch and
The number of power supply interface chip U1 is set, for example, when Ethernet switch is 8 mouthfuls of Ethernet switches, and power supply interface
When the number of chip U1 is 1, then as shown in figure 3, should be 7 by the number of electrical interface chip RJ45, when Ethernet switch is 8 mouthfuls
Ethernet switch, and when the number of power supply interface chip U1 is 2, then should be 6 etc. by the number of electrical interface chip RJ45, because
This, knowable to foregoing description, handed over for Ethernet with the number sum of power supply interface chip U1 by the number of electrical interface chip RJ45
The port number changed planes；Additionally, should be identical with the number of the first diode D1 by the number of electrical interface chip RJ45.
Furthermore, in the present embodiment, first voltage pin Y2 being subject to electrical interface chip RJ45 is first and is subject to electrical interface
The outfan PWR0 of unit 100, second voltage pin Y2 being subject to electrical interface chip RJ45 is second and is subject to electric interface unit 100
Outfan PWR1, the 3rd voltage pin Y2 by electrical interface chip RJ45 be the 3rd and be subject to exporting of electric interface unit 100
End PWR2, the 4th voltage pin Y2 by electrical interface chip RJ45 is the 4th outfan PWR3 being subject to electric interface unit 100,
5th voltage pin Y2 by electrical interface chip RJ45 is the 5th outfan PWR4 being subject to electric interface unit 100, the 6th
It is the 6th outfan PWR5 being subject to electric interface unit 100 by voltage pin Y2 of electrical interface chip RJ45, the 7th is connect by electricity
Voltage pin Y2 of mouth chip RJ45 is the 7th outfan PWR6 being subject to electric interface unit 100, and first is subject to electrical interface
The outfan PWR0 of unit 100, second be subject to the outfan PWR1 of electric interface unit 100, the 3rd be subject to electric interface unit 100
Outfan PWR2, the 4th be subject to electric interface unit 100 outfan PWR3, the 5th be subject to electric interface unit 100 outfan
PWR4, the 6th outfan PWR5 and the 7th outfan PWR6 group being subject to electric interface unit 100 being subject to electric interface unit 100
Become the first outfan by electric module 10.
Further, as this utility model one preferred implementation, as shown in Fig. 2 supply module 11 includes power supply list
Unit 110 and power supply interface unit 111.
Wherein, the input of power supply unit 110 is input, the outfan of power supply unit 110 and the confession of supply module 11
The power supply interface of electric interface unit 111 connects, and the data-interface of power supply interface unit 111 is the FPDP of supply module 11.
Specifically, power supply unit 110 receives unidirectional current, and is that outside power receiving equipment 30 supplies by power supply interface unit 111
Electricity, this outside power receiving equipment 30 can be IP phone, web camera, the network switch, ONU (Optical Network
Unit, optical network unit) etc. terminal unit.
Further, as this utility model one preferred implementation, as shown in figure 3, power supply unit 110 includes at least one
Individual second diode D2, power supply interface unit 111 includes at least one power supply interface chip U1.
Wherein, the anode of the second diode D2 is the input of power supply unit 110, and the negative electrode of the second diode D2 is power supply
The outfan of unit 110, voltage pin Y2 of power supply interface chip U1 is the power supply interface of power supply interface unit 111, and power supply connects
Data pin Y1 of mouth chip U1 is the data-interface of power supply interface unit 111；It should be noted that in the present embodiment, supply
Data pin Y1 of electrical interface chip U1 refers to pin 1 or the pin 2 of this power supply interface chip U1, or should be subject to electrical interface
The pin 3 of chip or pin 6, voltage pin Y2 of power supply interface chip U1 refer to this power supply interface chip U1 pin 4 or
Pin 5, should be grounded by the pin Y3 of electrical interface chip U1, this pin Y3 refers to the grounding pin 7 of power supply chip U1 or connects
Ground pin 8.
It should be noted that in the present embodiment, the number of the power supply interface chip U1 in the circuit shown in Fig. 3 is 1,
Certainly the number of this power supply interface chip U1 interface is not limited to 1, and it can be according to the network port number of Ethernet switch
Set with the number by electrical interface chip RJ45, for example, when Ethernet switch is 8 mouthfuls of Ethernet switches, and by electricity
When the number of interface chip RJ45 is 7, then as shown in figure 3, the number of this power supply interface chip U1 is 1, work as Ethernet switch
For 8 mouthfuls of Ethernet switches, and when being 6 by the number of electrical interface chip RJ45, then the number of this power supply interface chip U1 is 2
Deng, therefore, knowable to foregoing description, being ether by the number sum of number and the power supply interface chip U1 of electrical interface chip RJ45
The port number of network switch；Additionally, should be identical with the number of the second diode D2 by the number of electrical interface chip U1.
Further, as this utility model one preferred implementation, as shown in Fig. 2 motherboard power supply module 12 includes
One voltage conversion unit 120 and second voltage converting unit 121.
Wherein, the input of first voltage converting unit 120 is the input of mainboard power module 12, and first voltage is changed
The outfan of unit 120 is connected with the input of second voltage converting unit 121, the outfan of second voltage converting unit 121
Outfan for mainboard power module 12.
Specifically, first voltage converting unit 120 receives unidirectional current, and unidirectional current is carried out export after voltage conversion with first
To second voltage converting unit 121, second voltage converting unit 121 carries out output after voltage conversion to unidirectional current to the first unidirectional current
Working direct current electricity；It should be noted that in the present embodiment, the first galvanic voltage is less than galvanic voltage value, excellent
Choosing, the first galvanic voltage value is 12V.
Further, as this utility model one preferred implementation, as shown in figure 3, this first voltage converting unit 120
Realized by voltage conversion chip Ax3161, the voltage input end Vin of this voltage conversion chip Ax3161 changes for this first voltage
The input of unit 120, the voltage output end Vout of the Ax3161 of this voltage conversion chip is this first voltage converting unit 120
Outfan, this voltage conversion chip Ax3161 earth terminal Gnd ground connection；This second voltage converting unit 121 is by voltage conversion
Chip AP1534 realizes, and the voltage input end Vin of this voltage conversion chip AP1534 is the defeated of this second voltage converting unit 121
Enter end, the voltage output end Vout of this voltage conversion chip AP1534 is the outfan of this second voltage converting unit 121, this electricity
The earth terminal Gnd ground connection of pressure conversion chip AP1534.
Further, as this utility model one preferred implementation, as shown in Fig. 2 motherboard power supply module 12 also includes
Tertiary voltage converting unit 122 and the 4th voltage conversion unit 123.
Wherein, the input termination of the input of tertiary voltage converting unit 122 and the 4th voltage conversion unit 123 is all with the
Outfan connection, the outfan of tertiary voltage converting unit 122 and the 4th voltage conversion unit of one voltage conversion unit 120
123 outfan exports the second unidirectional current and the 3rd unidirectional current respectively.
Specifically, tertiary voltage converting unit 122 receives the first unidirectional current, and carries out voltage conversion to electric first unidirectional current
After export the second unidirectional current；4th voltage conversion unit 123 receives the first unidirectional current, and carries out voltage conversion to the first unidirectional current
Export the 3rd unidirectional current afterwards；It should be noted that in the present embodiment, the voltage value of the second unidirectional current and the 3rd DC voltage
It is below the first galvanic voltage value it is preferred that the second galvanic voltage value is 2.5V, the 3rd galvanic voltage
Value is 1.8V, and second unidirectional current of this 2.5V and the 3rd unidirectional current of 1.8V can be other works on the mainboard of Ethernet switch
Voltage needed for module offer work is provided.
Further, as this utility model one preferred implementation, as shown in figure 3, this tertiary voltage converting unit 122
Realize by voltage conversion chip AP1534 with the 4th voltage conversion voltage 123, the voltage of this voltage conversion chip AP1534 is defeated
Enter to hold the input that Vin is this tertiary voltage converting unit 122 and the 4th voltage conversion unit 123, this voltage conversion chip
The voltage output end Vout of AP1534 is the outfan of this tertiary voltage converting unit 122 and the 4th voltage conversion unit 123,
The earth terminal Gnd ground connection of this voltage conversion chip AP1534.
Further, as this utility model one preferred implementation, as shown in Fig. 2 and Fig. 4, wrapped by electro-detection module 13
Include multiple by electro-detection unit 130.
Wherein, multiple first voltage input compositions by electro-detection unit 130 are by the first input of electro-detection module 13
End, multiple by electro-detection unit 130 outfans composition by electro-detection module 13 outfan, multiple by electro-detection unit 130
Second voltage input composition by electro-detection module 13 the second input, this second input all receive working direct current electricity,
Each is subject to the first voltage input of electro-detection unit 130 to be subject to being corresponded even by electrical interface of electric interface unit 100 with each
Connect；It should be noted that in the present embodiment, the number by electro-detection unit 130 and the number phase by electric interface unit 100
With.
Specifically, each is worked according to working direct current electricity by electro-detection unit 130, and detects letter according to direct current electricity output
Number.
Further, as this utility model one preferred implementation, as shown in figure 3, each is wrapped by electro-detection unit 130
Include first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4 and photoelectrical coupler U2.
Wherein, the first end of first resistor R1 and the first end of second resistance R2 connect formation altogether by electro-detection unit 130
First voltage input, the second end of first resistor R1 is defeated all with the first of photoelectrical coupler U2 with the second end of second resistance R2
Enter end to connect, second input of photoelectrical coupler U2 is connected with the first end of 3rd resistor R3, the second end of 3rd resistor R3
It is the second voltage input by electro-detection unit 130, the outfan of photoelectrical coupler U2 is to be exported by electro-detection unit 130
End, the outfan of photoelectrical coupler U2 is connected with the first end of the 4th resistance R4, the second end ground connection of the 4th resistance R4.
It should be noted that in the present embodiment, first first voltage input and first being subject to electro-detection unit 130
The individual outfan PWR0 by electric interface unit 100 connects, second first voltage input and second being subject to electro-detection unit 130
The individual outfan PWR1 by electric interface unit 100 connects, the 3rd first voltage input and the 3rd being subject to electro-detection unit 130
The individual outfan PWR2 by electric interface unit 100 connects, the 4th first voltage input and the 4th being subject to electro-detection unit 130
The individual outfan PWR3 by electric interface unit 100 connects, the 5th first voltage input and the 5th being subject to electro-detection unit 130
The individual outfan PWR4 by electric interface unit 100 connects, the 6th first voltage input and the 6th being subject to electro-detection unit 130
The individual outfan PWR5 by electric interface unit 100 connects, the 7th first voltage input and the 7th being subject to electro-detection unit 130
The individual outfan PWR7 by electric interface unit 100 connects.
Further, as this utility model one preferred implementation, as shown in figure 3, control module 14 is by model TF-
331 central processing unit (Central Processing Unit, CPU) is realized, this CPU include multiple signal receiving ends, one
Medium independent interface (Medium Independent Interface, MII) and voltage input end VCC, the plurality of signal connects
Receiving end forms the signal input part of this control module 14, and this MII is the signal output part of control module 14；It should be noted that
In the present embodiment, the CPU TF-331 in Fig. 3 illustrate only seven signal receiving ends of GPIO0-GPIO6, and this CPU TF-
The number of the signal receiving end used by 331 is identical with the number by electrical interface chip RJ45, and with the number by electro-detection unit 130
Mesh is identical.
Further, as this utility model one preferred implementation, as shown in figure 3, exchanger chip 15 is by model
The exchanger chip of RTL9309SB is realized, this exchanger chip RTL9309SB include a MII, voltage input end VCC and
Eight network ports of P0-P7, this MII is the input of exchanger chip 15, the P0-P6 seven in eight network ports of this P0-P7
Individual by electric network port respectively with a pair of data pin Y1 1 being subject to electrical interface chip RJ45 by seven in electric interface unit 100
Should connect, this P7 supply network port is connected with data pin Y1 of power supply interface chip U1.
Specifically, network port P0 is connected with first data pin Y1 by electrical interface chip RJ45, network port P1
It is connected with second data pin Y1 by electrical interface chip RJ45, network port P2 and the 3rd is subject to electrical interface chip RJ45's
Data pin Y1 connects, and network port P3 is connected with the 4th data pin Y1 by electrical interface chip RJ45, network port P4
It is connected with the 5th data pin Y1 by electrical interface chip RJ45, network port P5 and the 6th is subject to electrical interface chip RJ45's
Data pin Y1 connects, and network port P6 is connected with the 7th data pin Y1 by electrical interface chip RJ45.
It should be noted that in the present embodiment, Fig. 4 illustrate only 1 exchanger chip RTL9309SB, that is, include Fig. 4
The Ethernet switch of shown circuit is 8 mouthfuls of Ethernet switches, and when Ethernet switch is 16 mouthfuls or 32 it is only necessary to
Cascaded switches chip RTL9309SB on the basis of this Ethernet switch is subject to electric power supply circuits, and change accordingly is by electricity
The number of detector unit 130, by electrical interface chip RJ45 and the first diode D1 number just can it is notable that
When the number by electro-detection unit 130 for the change, the number by electrical interface chip RJ45 and the first diode D1, need to follow by electricity
The number of detector unit 130, the same number of principle by electrical interface chip RJ45 and the first diode D1.
The work by electric power supply circuits with the circuit structure shown in Fig. 3 and Fig. 4, this utility model embodiment being provided below
Make principle to illustrate, details are as follows：
Firstly, it is necessary to illustrate, each in Fig. 3 all can be received externally fed equipment 20 by electrical interface chip RJ45 and carry
For 48V unidirectional current and data signal.When exchanger chip RTL9309SB network port P0 connect first be subject to electrical interface
When chip RJ45 receives 48V unidirectional current and the data signal of externally fed equipment 20 offer, be connected with network port P0 the
One by electrical interface chip RJ45 through connected first diode D1 by this 48V unidirectional current send to send to second
Diode D2 and voltage conversion chip Ax3161, the second diode D2 by this 48V direct current electricity output to power supply interface chip U1, with
This power supply interface chip U1 is made to be powered to outside power receiving equipment 30 according to this 48V unidirectional current, to realize the right of Ethernet switch
Outer power supply.
This 48V unidirectional current is converted to and exports to voltage conversion after first unidirectional current of 12V by voltage conversion chip Ax3161
Chip AP1534, first unidirectional current of 12V is converted to the working direct current electricity of 3.3V by voltage conversion chip AP1534, should with basis
The working direct current electricity of 3.3V provides work electricity to multiple photoelectrical coupler U2, CPUTF-331 and exchanger chip RTL9309SB
Pressure；Furthermore, this 48V unidirectional current is converted to and exports after first unidirectional current of 12V to another two electricity by voltage conversion chip Ax3161
Pressure conversion chip AP1534, the first unidirectional current conversion of 12V is respectively converted into by two other voltage conversion chip AP1534
Second unidirectional current of 2.5V and the 3rd unidirectional current of 1.8V, second unidirectional current of this 2.5V and the 3rd unidirectional current of 1.8V can be with
Other voltages needed for operational module offer work too on the mainboard of network switch.
Meanwhile, first being connected with network port P0 by electrical interface chip RJ45 by this 48V unidirectional current send to its
First connecting is subject to the photoelectrical coupler U2 in electro-detection unit 130, and this photoelectrical coupler U2 triggers according to this 48V unidirectional current
Its internal photocell lights, and then the switching tube within photoelectrical coupler U2 is turned on, thus exporting detection signal extremely
The signal receiving end GPIO0 of CPUTF-331, after the signal receiving end GPIO0 of CPUTF-331 detects this detection signal, to this
Detection signal is processed to export corresponding control signal, and exports this control signal to exchanger chip by MII
The MII of RTL9309SB, exchanger chip RTL9309SB can recognize that this control signal of CPUTF-331, and according to this control signal
Control its network port P0 open-minded, control other network ports P1-P6 persistently to turn off simultaneously, and then allow network port P0
The connected data signal being received by electrical interface chip RJ45 is sent to outside power receiving equipment 30；It should be noted that
In the present embodiment, the original state of the network port P0-P7 in exchanger chip RTL9309SB is shutoff, only when with
When being received, by electrical interface chip RJ45, the unidirectional current that externally fed equipment provides of network port connection, corresponding network-side eloquence
Can be opened, and then be communicated, otherwise, this network port persistently turns off.It should be noted that and exchanger chip
The work process by electrical interface chip RJ45 that other network ports of RTL9309SB connect and above-mentioned and switch
The work process by electrical interface chip RJ45 that the network port P0 of RTL9309SB connects is identical, and here is omitted；Additionally,
Ethernet switch shown in the present embodiment be subject to electric power supply circuits be not limited to every time can only one be subject to electrical interface chip RJ45
The data signal that the 48V working direct current electricity that receive user provides is provided with external circuit, i.e. Ethernet friendship shown in the present embodiment
Change planes by electric power supply circuits at least include every time a 48V working direct current electricity being provided by electrical interface chip RJ45 receive user with
The data signal that external circuit provides, and it is processed accordingly.
In the present embodiment, the present embodiment provide adopted by electric power supply circuits the first diode D1 substituted for existing with
Multiple too in network switch are by electrical chip, and instead of the power supply in existing Ethernet switch using the second diode D2
Chip is so that the Ethernet switch that the present embodiment provides is handed over compared to existing Ethernet by the circuit structure of electric power supply circuits
Change planes simple by electric power supply circuit construction, and low cost, thus solving existing ethernet switch circuitry complex structure, one-tenth
This high problem.
Additionally, the present embodiment provide by electric power supply circuits pass through using photoelectrical coupler U2 by electro-detection module 13,
Make photoelectrical coupler U2 according to the corresponding detection signal of 48 direct current electricity outputs being exported by electrical interface chip RJ45 to CPU, enter
And CPU is exported after changing this detection signal and is switched on or off control signal accordingly to exchanger chip RTL9309SB,
Exchanger chip RTL9309SB controls the corresponding network port to be turned on and off according to being switched on or off control signal, to carry out
The control of communication it is achieved that port controllable, solves the non-powered network port that existing Ethernet switch exists uncontrollable
Problem.
Further, this utility model embodiment also provides a kind of Ethernet switch, and this Ethernet switch includes
State by electric power supply circuits.
In this utility model, by using include by electric module 10, supply module 11, motherboard power supply module 12, by electricity
Detection module 113, control module 14 and exchanger chip 15 by electric power supply circuits so that unidirectional current is sent out by electric module 10
Deliver to supply module 11, motherboard power supply module 12 and be subject to electro-detection module 13, and send data to exchanger chip 15；For
Electric module 11 is powered to outside power receiving equipment 30 according to unidirectional current；It is backward that motherboard power supply module 12 carries out voltage conversion to unidirectional current
Powered by electro-detection module 13, control module 14 and exchanger chip 15；Examined according to direct current electricity output by electro-detection module 13
Survey signal to control module 14；Control module 14 outputs control signals to exchanger chip 15 after detection signal is processed,
Exchanger chip 15 identifies control signal, and the break-make according to control signal controlling network port, by data through power supply mould
Block 11 sends to outside power receiving equipment 30, due to this circuit by by electro-detection module 13 to Ethernet switch by electric situation
Detected, so make exchanger chip 15 the network port controlled, and this circuit without using multiple power supply chips with
By electrical chip, structure is simple, and low cost, solves existing POE switch and there is circuit structure complexity, fault rate height, becomes
The uncontrollable problem of this high and non-powered network port.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all this
Any modification, equivalent and improvement made within the spirit of utility model and principle etc., should be included in this utility model
Protection domain within.
Claims (10)
1. a kind of Ethernet switch by electric power supply circuits, described by electric power supply circuits and externally fed equipment and outside by electricity
Equipment connects it is characterised in that described included by electric power supply circuits：
By electric module, supply module, motherboard power supply module, it is subject to electro-detection module, control module and exchanger chip；
The described FPDP by electric module is connected with the network port of described exchanger chip, the described outfan by electric module
With the input of described supply module, the input of described motherboard power supply module and described the first input by electro-detection module
End connects；The FPDP of described supply module is connected with the network port of described exchanger chip；Described motherboard power supply module
Outfan output services unidirectional current, the outfan of described motherboard power supply module with described by electro-detection module second input
The voltage input end of end, the voltage input end of described control module and described exchanger chip connects；Described by electro-detection mould
The outfan of block is connected with the signal input part of described control module；The signal output part of described control module and described switch
The signal input part of chip connects；
Described received the unidirectional current that provides of described externally fed equipment and data by electric module, and described unidirectional current is sent to institute
State supply module, described motherboard power supply module and described by electro-detection module；Described supply module according to described unidirectional current to
Described outside power receiving equipment is powered；Described motherboard power supply module carries out voltage conversion to described unidirectional current, and according to conversion after
Working direct current electricity is powered to described by electro-detection module, described control module and described exchanger chip；Described by electro-detection
Module is according to described direct current electricity output detection signal to described control module；Described control module to described detection signal at
Output control signal after reason, described exchanger chip identifies described control signal, and according to described control signal controlling network end
The break-make of mouth, the described data being received by electric module is sent to described outside power receiving equipment through described supply module.
2. according to right 1 by electric power supply circuits it is characterised in that described by electric module include by electric interface unit be subject to
Electric unit；
The described data-interface by electric interface unit is the described FPDP by electric module, described by electric interface unit by electricity
Interface is connected with the described input by electric unit, and the described outfan by electric unit is connect by electricity by electric interface unit with described
Mouth forms the described outfan by electric module；
Described received the described externally fed equipment unidirectional current that provide by described by electric interface unit by electric unit, and will be described
Unidirectional current sends to described supply module and described motherboard power supply module, described by electric interface unit by described direct current electricity output extremely
Described by electro-detection module, described by electric interface unit by described data is activation to described exchanger chip.
3. according to claim 2 by electric power supply circuits it is characterised in that described by electric interface unit include multiple by electricity
Interface chip, described is included multiple first diodes by electric unit；
Multiple described described data-interfaces by electric interface unit of data pin composition by electrical interface chip, multiple described by electricity
By electric interface unit by electrical interface described in the voltage pin composition of interface chip, the anode composition of multiple described first diodes
The described input by electric unit, the described outfan by electric unit of negative electrode composition of multiple described second diodes, each institute
State the voltage pin by electrical interface chip to connect one to one with the anode of the first diode each described.
4. according to claim 1 by electric power supply circuits it is characterised in that described supply module includes power supply unit and confession
Electric interface unit；
The input of said supply unit is the input of described supply module, the outfan of said supply unit and described power supply
The power supply interface of interface unit connects, and the data-interface of described power supply interface unit is the FPDP of described supply module；
Said supply unit receives described unidirectional current, and is that described outside power receiving equipment is powered by described power supply interface unit.
5. according to claim 4 by electric power supply circuits it is characterised in that said supply unit include at least one second
Diode, described power supply interface unit includes at least one power supply interface chip；
The anode of described second diode is the input of said supply unit, and the negative electrode of described second diode is described power supply
The outfan of unit, the voltage pin of described power supply interface chip is the power supply interface of described power supply interface unit, described power supply
The data pin of interface chip is the data-interface of described power supply interface unit.
6. according to claim 1 by electric power supply circuits it is characterised in that described motherboard power supply module includes first voltage
Converting unit and second voltage converting unit；
The input of described first voltage converting unit is the input of described motherboard power supply module, and described first voltage conversion is single
The outfan of unit is connected with the input of described second voltage converting unit, and the outfan of described second voltage converting unit is institute
State the outfan of motherboard power supply module；
Described first voltage converting unit receives described unidirectional current, and it is straight that described unidirectional current is carried out with output first after voltage conversion
To described second voltage converting unit, described second voltage converting unit is carried out after voltage conversion stream electricity to described first unidirectional current
Export described working direct current electricity.
7. according to claim 6 by electric power supply circuits it is characterised in that described motherboard power supply module also include the 3rd electricity
Pressure converting unit and the 4th voltage conversion unit；
The input termination of the input of described tertiary voltage converting unit and described 4th voltage conversion unit is all with described first
The outfan connection of voltage conversion unit, the outfan of described tertiary voltage converting unit and described 4th voltage conversion unit
Outfan exports the second unidirectional current and the 3rd unidirectional current respectively；
Described tertiary voltage converting unit receives described first unidirectional current, and carries out institute after voltage conversion to described first unidirectional current
The second unidirectional current is exported after stating；Described 4th voltage conversion unit receives described first unidirectional current, and to described first unidirectional current
The 3rd unidirectional current is exported after carrying out voltage conversion.
8. according to claim 3 by electric power supply circuits it is characterised in that described by electro-detection module include multiple by electricity
Detector unit；
Multiple described described first input ends by electro-detection module of first voltage input composition by electro-detection unit, multiple
The described described outfan by electro-detection module of outfan composition by electro-detection unit, multiple described by the of electro-detection unit
Described the second input by electro-detection module of two voltage input end compositions, each described first voltage by electro-detection unit is defeated
Enter end to be connected one to one by the voltage pin of electrical interface chip with each Suo Shu；
Worked according to described working direct current electricity by electro-detection unit described in each, and according to described direct current electricity output detection signal.
9. according to claim 8 by electric power supply circuits it is characterised in that being included first by electro-detection unit described in each
Resistance, second resistance, 3rd resistor, the 4th resistance and photoelectrical coupler；
The first end of the first end of described first resistor and described second resistance connects first described in formation by electro-detection unit altogether
Voltage input end, the second end of described first resistor and the second end of described second resistance all with described photoelectrical coupler first
Input connects, and the second input of described photoelectrical coupler is connected with the first end of described 3rd resistor, described 3rd resistor
The second end be the described second voltage input by electro-detection unit, the outfan of described photoelectrical coupler is described by electric-examination
Survey the outfan of unit, the outfan of described photoelectrical coupler is connected with the first end of described 4th resistance, described 4th resistance
Second end ground connection.
10. a kind of Ethernet switch is it is characterised in that described Ethernet switch is included as any one of claim 1 to 9 institute
State by electric power supply circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620900956.1U CN205945799U (en) | 2016-08-18 | 2016-08-18 | Ethernet switch and receive electric supply circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620900956.1U CN205945799U (en) | 2016-08-18 | 2016-08-18 | Ethernet switch and receive electric supply circuit thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205945799U true CN205945799U (en) | 2017-02-08 |
Family
ID=57919530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620900956.1U Active CN205945799U (en) | 2016-08-18 | 2016-08-18 | Ethernet switch and receive electric supply circuit thereof |
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| Country | Link |
|---|---|
| CN (1) | CN205945799U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106101028A (en) * | 2016-08-18 | 2016-11-09 | 深圳市海硕科技有限公司 | A kind of Ethernet switch and by electricity power supply circuits |
| CN108347584A (en) * | 2018-01-30 | 2018-07-31 | 成都三零凯天通信实业有限公司 | A kind of secure access arrangement with POE functions |
| CN111093119A (en) * | 2019-12-27 | 2020-05-01 | 珠海市竞争电子科技有限公司 | Two-wire power system exchange circuit and switch |
| CN111812377A (en) * | 2019-04-10 | 2020-10-23 | 杭州海康威视数字技术股份有限公司 | Network power supply detection device |
-
2016
- 2016-08-18 CN CN201620900956.1U patent/CN205945799U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106101028A (en) * | 2016-08-18 | 2016-11-09 | 深圳市海硕科技有限公司 | A kind of Ethernet switch and by electricity power supply circuits |
| CN106101028B (en) * | 2016-08-18 | 2022-06-28 | 深圳市海硕科技有限公司 | Ethernet switch and power receiving and supplying circuit thereof |
| CN108347584A (en) * | 2018-01-30 | 2018-07-31 | 成都三零凯天通信实业有限公司 | A kind of secure access arrangement with POE functions |
| CN111812377A (en) * | 2019-04-10 | 2020-10-23 | 杭州海康威视数字技术股份有限公司 | Network power supply detection device |
| CN111093119A (en) * | 2019-12-27 | 2020-05-01 | 珠海市竞争电子科技有限公司 | Two-wire power system exchange circuit and switch |
| CN111093119B (en) * | 2019-12-27 | 2022-03-04 | 珠海市竞争电子科技有限公司 | Two-wire power system exchange circuit and switch |
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