CN103384199B - A kind of method of supplying power to, converter and POE system - Google Patents
A kind of method of supplying power to, converter and POE system Download PDFInfo
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- CN103384199B CN103384199B CN201110459644.3A CN201110459644A CN103384199B CN 103384199 B CN103384199 B CN 103384199B CN 201110459644 A CN201110459644 A CN 201110459644A CN 103384199 B CN103384199 B CN 103384199B
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Abstract
The invention discloses a kind of method of supplying power to, converter and POE system.The method of supplying power to is suitable for POE system, and the POE system includes：Power supply unit PSE, powered device PD and the converter being made up of at least two power takings mouthful, at least one power supply port and at least one change-over circuit；Methods described includes：The change-over circuit detects power consumption number needed for the power supply port, and the input power needed for the power taking mouthful being connected with PSE is adjusted according to the power consumption number；After the input power needed for the power taking being connected with PSE interfaces mouthful is adjusted successfully, processing is merged to the power that the power taking mouthful is obtained, the power after merging is exported by the power supply port, thinks that the PD is powered.The scheme provided by using the embodiment of the present invention, it is possible to achieve PSE power consumption numbers for needed for are powered higher than the PD that its port provides power.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of method of supplying power to, converter and POE system.
Background technology
PoE (Power over Ethernet, POE) refers to not do in existing Ethernet wiring base frame
In the case of any change, for some IP-based terminals, for example：IP telephone machine, wireless local network connecting point AP, network are taken the photograph
Camera etc., while transmission data-signal, moreover it is possible to which the technology of direct current supply is provided for the terminal.In the prior art, one it is complete
Whole PoE system includes the PSE (Power Sourcing Equipment, power supply unit) powered for ethernet client equipment
PD (Powered Device, power receiving equipment) two parts are loaded with the PSE for receiving power supply.
PSE is as power supply unit, and it can power and transmit signal by common Ethernet to PD, for 10M/100M
Ethernet, signal transmission only needs 4 lines (1,2,3,6), and remaining 4 line (4,5,7,8) will be used as power delivery cable.
PD receives the supply voltage from PSE, and start working using this voltage, it is no longer necessary to extra power supply as power receiving equipment
Adapter, can so save holistic cost and wiring.In the prior art, the specific implementation of PoE system, such as Fig. 1 institutes
Show.PoE power supply process is generally：PSE exports less voltage in port, and another voltage is then exported again, passes through two electricity
The change of pressure corresponding current obtains a load impedance, if this load impedance is within critical field, then can determine whether
Have been coupled to the PD of a standard.After PD is detected, PSE can be then that PD is classified according to the size of load impedance,
And the power attenuation needed for this PD is assessed, and then is its power supply.
Existing PSE is to support that peak power is based on IEEE 802.3af standards, that is, PSE each port
The corresponding 15W of IEEE 802.3af standards.In the case that power consumption needed for facing PD is more than 15W, existing PSE will be unable to directly
The power supply for meeting power requirement is provided for the PD, with significant limitation.
The content of the invention
In order to solve the above technical problems, the embodiments of the invention provide a kind of method of supplying power to, converter and POE
System, to realize that PSE power consumption numbers as needed for are powered higher than the PD that its port provides power, technical scheme is as follows：
A kind of method of supplying power to, it is adaptable in POE system, the POE system includes：Power supply unit
PSE, powered device PD and the conversion being made up of at least two power takings mouthful, at least one power supply port and at least one change-over circuit
Device, the converter is arranged between the PSE and the PD, and at least two power takings mouthful of the converter connect one respectively
PSE interfaces a, power supply port of the converter is connected with the PD；Methods described includes：
The change-over circuit detects power consumption number needed for the power supply port, and adjusts what is be connected with PSE according to the power consumption number
Input power needed for power taking mouthful；
After the input power needed for the power taking being connected with PSE interfaces mouthful is adjusted successfully, the power taking mouthful is obtained
Power merge processing, by the power supply port export merge after power, think that the PD is powered；
Wherein, input power of the change-over circuit needed for the power taking mouthful being connected with PSE is adjusted according to the power consumption number
When, the input power needed for the connected power taking mouthful of each and PSE interfaces is set to it is equal, or, by each and PSE interface phases
Input power needed for power taking even mouthful is set to special ratios relation.
Wherein, the input power needed for the power taking mouthful being connected with PSE is adjusted according to the power consumption number, is specially：
The change-over circuit adjusts the input impedance for the power taking mouthful being connected with PSE according to the power consumption number, described to adjust
Input power needed for the power taking mouthful being connected with PSE.
Accordingly, the embodiment of the present invention also provides a kind of converter, it is adaptable in POE system, the Ethernet
Electric power system includes：Power supply unit PSE and powered device PD；The converter includes：At least two power takings mouthful, at least one confession
Power port and,
Power consumption number needed for for detecting the power supply port, and the power taking mouthful institute being connected with PSE is adjusted according to the power consumption number
The input power needed；After the input power needed for the power taking being connected with PSE interfaces mouthful is adjusted successfully, to the power taking mouthful
The power of acquisition merges processing, and the power after merging is exported by the power supply port, thinks turn that the PD is powered
Change circuit；
Wherein, the converter is arranged between the PSE and the PD, and at least two power takings mouthful of the converter
A PSE interfaces are connected respectively, and a power supply port of the converter is connected with the PD；
Wherein, input power of the change-over circuit needed for the power taking mouthful being connected with PSE is adjusted according to the power consumption number
When, the input power needed for the connected power taking mouthful of each and PSE interfaces is set to it is equal, or, by each and PSE interface phases
Input power needed for power taking even mouthful is set to special ratios relation.
Wherein, with power supply after the output end combining for mouthful corresponding load of power taking being connected in the change-over circuit with PSE interfaces
Mouth is connected.
The embodiment of the present invention also provides a kind of POE system, including：Power supply unit PSE and powered device PD；Also
Including：Converter：
The converter includes：
At least two power takings mouthful, at least one power supply port and, power consumption number needed for for detecting the power supply port, and according to
Input power needed for the power taking mouthful that the power consumption number regulation is connected with PSE；Needed for the power taking being connected with PSE interfaces mouthful
Input power adjust successfully after, processing is merged to the power that the power taking mouthful is obtained, passes through power supply port output conjunction
And after power, think the change-over circuit that the PD is powered；
Wherein, the converter is arranged between the PSE and the PD, and at least two power takings mouthful of the converter
A PSE interfaces are connected respectively, and a power supply port of the converter is connected with the PD；
Wherein, input power of the change-over circuit needed for the power taking mouthful being connected with PSE is adjusted according to the power consumption number
When, the input power needed for the connected power taking mouthful of each and PSE interfaces is set to it is equal, or, by each and PSE interface phases
Input power needed for power taking even mouthful is set to special ratios relation.
Wherein, with power supply after the output end combining for mouthful corresponding load of power taking being connected in the change-over circuit with PSE interfaces
Mouth is connected.
In the embodiment of the present invention, converter is connected between PSE and PD；Electric circuit inspection is changed in the converter with PD to be connected
Power supply port needed for power consumption number, and according to the power consumption number adjust be connected with PSE power taking mouth needed for input power；It is described with
After input power needed for the connected power taking mouthful of PSE interfaces is adjusted successfully, the power that the power taking mouthful is obtained is merged, and
Power after merging is exported by power supply port, and then can realize that PSE power consumption numbers for needed for provide power higher than its port
PD is powered.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the connection diagram of PSE and PD in the prior art；
A kind of flow chart for method of supplying power to that Fig. 2 is provided by the embodiment of the present invention；
A kind of electrical block diagram for converter that Fig. 3 is provided by the embodiment of the present invention；
Fig. 4 is another structural representation of converter shown in Fig. 3.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, the scope of protection of the invention is belonged to.
In order to realize that PSE power consumption numbers for needed for are powered higher than the PD that its port provides power, the invention provides
A kind of method of supplying power to, converter and POE system.
A kind of method of supplying power to provided by the present invention is introduced first below.
It should be noted that method of supplying power to provided by the present invention, it is adaptable in a POE system, the Ethernet
Electric power system includes：Power supply unit PSE, powered device PD and by least two power takings mouthful, at least one power supply port and at least
The converter that one change-over circuit is constituted.Wherein, the converter is arranged between PSE and PD, and at least two power takings mouthful are respectively
A PSE interfaces are connected, a power supply port is connected with PD.It is understood that being provided when the power consumption number needed for PD is not higher than PSE interfaces
During power, the converter can also be utilized.Now, a power taking mouthful is connected with PSE interfaces, a power supply port is connected with PD, should
Converter functions only as transfer effect.
As shown in Fig. 2 a kind of method of supplying power to, can include：
Change-over circuit detection in S101, the converter is connected with power consumption number needed for PD power supply port；
When power consumption number is powered PSE higher than the PD that its interface provides power for needed for, the conversion in the converter
Circuit detects the power consumption number needed for the power supply port being connected with the PD first, it is, the power consumption needed for change-over circuit detection PD
Value.
S102, the input power needed for the power taking mouthful being connected with PSE is adjusted according to the power consumption number；
It is determined that after power consumption number needed for the power supply port, then adjusting the power taking mouthful institute being connected with PSE interfaces according to the power consumption number
The input power needed, to cause input powers of the PSE according to needed for power taking mouthful to carry out the regulation of PSE interface power outputs, and then
So that PSE PSE interfaces output connects the input power needed for power taking mouthful.
Wherein, the change-over circuit of the converter is needed for the power taking mouthful that the power consumption number regulation according to needed for PD is connected with PSE
Input power when, the input power needed for the connected power taking mouthful of each and PSE interfaces can be set to it is equal, or by each
Input power needed for the power taking mouthful being connected with PSE interfaces is set to have other special ratios relations.For example：When converter
When two power takings mouthful connect a PSE interfaces respectively, if the power consumption number needed for change-over circuit detects PD is 20W, and each PSE
The power that interface is provided is 15W, now, and the input power needed for two power takings mouthful can be both configured to 10W by the change-over circuit,
Or, the input power needed for a power taking mouthful is set to 15W, and the input power needed for another power taking mouthful is set to
5W, this is all rational.
It should be noted that in the input power needed for the power taking mouthful that the power consumption number regulation according to needed for PD is connected with PSE
When, different input Power Distribution ratios can be selected according to different application scenarios, it is not limited to provided by the present invention
Mode.
Those skilled in the art are it is understood that because PSE can adjust PSE according to the input impedance of detected load
The power output that interface is provided, therefore, change-over circuit in the converter can according to detected power consumption number regulation with
The input impedance of PSE interfaces connected power taking mouthful, to realize the regulation to power taking mouthful required input power, and then causes PSE to press
Input impedance according to power taking mouthful adjusts the power that corresponding PSE interfaces are provided.Likewise, the change-over circuit can by each with
The input impedance of PSE interfaces connected power taking mouthful be set to it is equal, to cause the input of each power taking mouth being connected with PSE interfaces
Power is equal, or, the input impedance for the power taking mouthful that each can be connected by the change-over circuit with PSE interfaces is set to have it
His specific proportionate relationship, to cause the input power needed for each power taking mouthful being connected with PSE interfaces to have this specific
Proportionate relationship.
Certainly, it is not limited in the way of the input power needed for the power taking mouthful that the power consumption number is adjusted with PSE is connected
Mode provided by the present invention, can also select other power adjusting modes according to practical application scene.
S103, after the input power needed for the power taking mouthful being connected with PSE interfaces is adjusted successfully, is obtained to each power taking mouthful
Power merges processing；
Because multiple power takings mouthful carry out power taking action, and each power taking mouthful obtains specific input power, logical in order to realize
A power supply port is crossed to be powered for PD, after the input power needed for the power taking that is connected with PSE interfaces mouthful is adjusted successfully, it is necessary to
Processing is merged to the power that each power taking mouthful is obtained.
S104, exports the power after merging by the power supply port, thinks that the PD is powered.
After the power obtained to each power taking mouthful merges processing, then the work(after merging can be exported by the power supply port
Rate, and then be powered for PD.
In the embodiment of the present invention, converter is connected between PSE and PD；Electric circuit inspection is changed in the converter with PD to be connected
Power supply port needed for power consumption number, and according to the power consumption number adjust be connected with PSE power taking mouth needed for input power；It is described with
After input power needed for the connected power taking mouthful of PSE interfaces is adjusted successfully, the power that the power taking mouthful is obtained is merged, and
Power after merging is exported by power supply port, and then can realize that PSE power consumption numbers for needed for provide power higher than its port
PD is powered.
Accordingly, the present invention also provides a kind of converter, and it is suitable for POE system, the POE system
System includes：Power supply unit PSE and powered device PD；The converter includes：At least two power takings mouthful, at least one power supply port with
And,
Power consumption number needed for for detecting the power supply port, and the power taking mouthful institute being connected with PSE is adjusted according to the power consumption number
The input power needed；After the input power needed for the power taking being connected with PSE interfaces mouthful is adjusted successfully, to the power taking mouthful
The power of acquisition merges processing, and the power after merging is exported by the power supply port, thinks turn that the PD is powered
Change circuit.
Converter provided by the present invention is arranged between PSE and PD, and at least two power takings mouthful are connected to a PSE
Interface a, power supply port can be connected with PD.When the power consumption number needed for PD is higher than the power that PSE interfaces can be provided, this turn of utilization
Parallel operation realizes that PSE can be to the process of PD effective power supply：The power supply port that the change-over circuit detection of the converter is connected with PD
Required power consumption number, it is, the power consumption number needed for PD；It is determined that after power consumption number needed for power supply port, then being adjusted according to the power consumption number
The input power needed for the power taking mouthful being connected with PSE interfaces is saved, to cause power of the PSE according to needed for power taking mouthful carries out PSE to connect
The regulation of mouth power output, and then cause PSE output PSE interfaces to connect the power needed for power taking mouthful；It is connected with PSE interfaces
Power taking mouthful needed for input power adjust successfully after, the power that each power taking mouthful is obtained is merged place by the change-over circuit
Reason, and then the power after the merging is exported by power supply port, finally it is embodied as PD and is powered.It can be seen that, by using the present invention
The converter provided, it is possible to achieve PSE power consumption numbers for needed for are powered higher than the PD that its port provides power.
It is understood that when the power consumption number needed for PD is not higher than PSE interfaces and provides power, the present invention can also be utilized
The converter provided.Now, a power taking mouthful is connected with PSE interfaces, a power supply port is connected with PD, and the converter only rises
To transfer effect.
Wherein, the change-over circuit of the converter is needed for the power taking mouthful that the power consumption number regulation according to needed for PD is connected with PSE
Input power when, the input power needed for the connected power taking mouthful of each and PSE interfaces can be set to it is equal, or by each
Input power needed for the power taking mouthful being connected with PSE interfaces is set to have other special ratios relations.For example：When converter
When two power takings mouthful connect a PSE interfaces respectively, if the power consumption number needed for change-over circuit detects PD is 20W, and each PSE
The power that interface is provided is 15W, now, and the input power needed for two power takings mouthful can be both configured to 10W by the change-over circuit,
Or, the input power needed for a power taking mouthful is set to 15W, and the input power needed for another power taking mouthful is set to
5W, this is all rational.
It should be noted that in the input power needed for the power taking mouthful that the power consumption number regulation according to needed for PD is connected with PSE
When, different input Power Distribution ratios can be selected according to different application scenarios, it is not limited to provided by the present invention
Mode.
Those skilled in the art are it is understood that because PSE is according to the input impedance of detected load regulation PSE interfaces
The power output provided, therefore, the change-over circuit in the converter can connect according to detected power consumption number regulation with PSE
The input impedance of mouth connected power taking mouthful, to realize the regulation to power taking mouthful required input power, and then causes PSE according to power taking
The input impedance of mouth adjusts the power that corresponding PSE interfaces are provided.Likewise, the change-over circuit can be by each and PSE interfaces
The input impedance of connected power taking mouthful be set to it is equal, to cause the input power phase of each power taking mouth being connected with PSE interfaces
Together, or, the input impedance of power taking that each can be connected by the change-over circuit with PSE interfaces mouthful is set to have other specific
Proportionate relationship, to cause the input power needed for power taking mouthful that each is connected with PSE interfaces that there is the specific ratio to close
System.
Further, because multiple power takings mouthful carry out power taking action, and each power taking mouthful obtains specific input power,
It is powered to realize by a power supply port for PD, load corresponding with the power taking mouthful that PSE interfaces are connected in the change-over circuit
Output end combining after be connected with power supply port, processing is merged to the power that is obtained of power taking mouth to realize.Certainly, to power taking
The mode that power acquired in mouthful is merged is not limited to the mode that the present embodiment is provided.
Converter provided by the present invention is introduced with reference to a specific embodiment.
Converter as shown in Figure 3, Figure 4, it has the first power taking mouthful Port1, the second power taking mouthful Port2, power supply port
Port3 and the change-over circuit being made up of power taking part and power pack.First power taking mouthful Port1 and the second power taking mouthful Port2
A PES interfaces of PSE power supply units, power supply port Port3 connection PD power receiving equipments are connected respectively.The power taking part mainly passes through
Mid-span method and end bridging method power taking control first load the different brackets of the loads of PD1 and second PD2 input impedance,
And first power taking mouthful Port1 and the second power taking mouthful Port2 input power enter in the first load PD1 and the second load PD2 rear ends
After row combining, power pack is inputted.The power pack is provided with a PSE control chips, and the PSE control chips can detect power supply
Power consumption number needed for the PD power receiving equipments that mouth Port3 is connected, and the first load PD1 and second are adjusted according to the power consumption number respectively
PD2 input impedance is loaded, the input needed for the first power taking mouthful Port1 and the second power taking mouthful Port2 is adjusted respectively with realization
The purpose of power, and then cause PSE power supply units to be respectively needed for the first power taking mouthful Port1 and the second power taking mouthful Port2 is improved
Power.
Wherein, the first power taking mouthful Port1 is functional area, and the second power taking mouthful Port2 is auxiliary power supply port.It is, this
One power taking mouthful Port1 is connected by 8 complete lines with PSE interfaces, can both be transmitted data-signal to realize, can be transmitted again
Electric signal；And second power taking mouthful Port2 is just with 4 lines (4,5,7,8) transmitting telecommunication number.It is understood that in reality
In the application of border, the first power taking mouthful Port1 and the second power taking mouthful Port2 can support FE interfaces and GE interfaces, simply port power taking
Mode is different.
Wherein, realize that PSE power supply units power consumption number for needed for provides the PD of power higher than its port using the converter
The process that power receiving equipment is powered is：
(1) two PE interfaces are connected with the first power taking mouthful Port1 and the second power taking mouthful Port2 respectively, PD is set by electricity
It is standby to be connected with power supply port Port3；
(2) during original state, the first load PD1 and the input impedance grade that the second load PD2 is acquiescence：0 grade；
(3) when the power consumption number needed for PSE control chips detect PD by power supply port Port3, then according to identified
Power consumption number and according to certain power sharing ratio, adjusts the first input impedance for loading the loads of PD1 and second PD2 respectively, with
So that needed for the corresponding second power taking mouthful Port2 of the corresponding loads of first power taking mouthful Port1 and second PD2 of the first load PD1
Input power is not more than the power that PE interfaces are provided, and the first power taking mouthful Port1 and the second power taking mouthful Port2 required input work(
Rate summation is not less than the power consumption number needed for PD equipment；
(4) after PSE control chips, which detect the loads of the first load PD1 and second PD2, all indicates power supply OK, PSE controls
Chip obtains the power after merging treatment, and opens MOS switch, is supplied to the PD power receiving equipments being connected with power supply port Port3
Electricity.
Further, when PSE control chips detect the connected PD power receiving equipments of power supply port Port3 it is abnormal when, will be actively
Turn off MOS switch, to protect PD power receiving equipments.After PD power receiving equipments are normal, PSE control chips reopen MOS switch again
It is powered to PD power receiving equipments.
Need explanation but, when PSE control chips are not powered to the connected PD power receiving equipments of power supply port Port3
When, the converter only needs to the power consumption of microampere order, to ensure that PSE control chips being capable of normal work：To the power supply port detected
The connected PD power receiving equipments of Port3 carry out power consumption classification.
It is understood that the converter, which can be realized, supports two 802.3af interfaces setting to 802.3at standard
Available electricity；Meanwhile, by reequiping the converter also to realize two 802.3af interfaces to the nonstandard interface for having more significant power demand
Power supply.
It should be noted that the converter described in this specific embodiment is merely possible to a kind of example, it should not constitute
Restriction to the present invention program.
Accordingly, the present invention also provides a kind of POE system, including：Power supply unit PSE and powered device PD；Also
Including：Converter：
The converter includes：
At least two power takings mouthful, at least one power supply port and,
Power consumption number needed for for detecting the power supply port, and the power taking mouthful institute being connected with PSE is adjusted according to the power consumption number
The input power needed；After the input power needed for the power taking being connected with PSE interfaces mouthful is adjusted successfully, to the power taking mouthful
The power of acquisition merges processing, and the power after merging is exported by the power supply port, thinks turn that the PD is powered
Change circuit.
In POE system provided by the present invention, converter is connected between PSE and PD；Changed in the converter
Power consumption number needed for the power supply port that electric circuit inspection is connected with PD, and according to the power consumption number adjust be connected with PSE power taking mouth needed for
Input power；After the input power needed for the power taking being connected with PSE interfaces mouthful is adjusted successfully, the power taking mouthful is obtained
Power merge, and by power supply port export merge after power, and then can realize PSE for needed for power consumption number higher than its
The PD that port provides power is powered.
It is understood that because multiple power takings mouthful carry out power taking action, and each power taking mouthful obtains specific input work
Rate, is powered to realize by a power supply port for PD, is adjusted in the input power needed for the power taking mouthful being connected with PSE interfaces
, it is necessary to which the power obtained to each power taking mouthful merges processing after saving successfully.Therefore, it is connected in the change-over circuit with PSE interfaces
The output end of power taking mouthful correspondence load can realize to enter the power of each power taking mouthful acquisition with this after combining with power supply port to be connected
Row merges.Certainly, what the embodiment of the present invention was provided is not limited to the mode that the power acquired in power taking mouthful is merged
Mode.
Described above is only the embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of method of supplying power to, it is characterised in that suitable for POE system, the POE system includes：
Power supply unit PSE, powered device PD and by least two power takings mouthful, at least one power supply port and at least one change-over circuit structure
Into converter, the converter is arranged between the PSE and the PD, and at least two power takings mouthful point of the converter
A PSE interfaces are not connected, and a power supply port of the converter is connected with the PD；Methods described includes：
The change-over circuit detects power consumption number needed for the power supply port, and the power taking being connected with PSE is adjusted according to the power consumption number
Input power needed for mouthful；
After the input power needed for the power taking being connected with PSE interfaces mouthful is adjusted successfully, the work(obtained to the power taking mouthful
Rate merges processing, exports the power after merging by the power supply port, thinks that the PD is powered；
Wherein, the change-over circuit, will in the input power needed for the power taking mouthful being connected with PSE is adjusted according to the power consumption number
Input power needed for each power taking being connected with PSE interfaces mouthful be set to it is equal, or, each is connected with PSE interfaces
Input power needed for power taking mouthful is set to special ratios relation.
2. according to the method described in claim 1, it is characterised in that the power taking mouthful being connected with PSE is adjusted according to the power consumption number
Required input power, be specially：
The change-over circuit adjusts the input impedance for the power taking mouthful being connected with PSE according to the power consumption number, with described in adjusting and
Input power needed for power taking mouthful connected PSE.
3. a kind of converter, it is adaptable in POE system, the POE system includes：Power supply unit PSE and
Powered device PD；Characterized in that, the converter includes：At least two power takings mouthful, at least one power supply port and,
Power consumption number needed for for detecting the power supply port, and according to the power consumption number adjust be connected with PSE power taking mouth needed for
Input power；After the input power needed for the power taking being connected with PSE interfaces mouthful is adjusted successfully, the power taking mouthful is obtained
Power merge processing, the power after merging is exported by the power supply port, the conversion electricity that the PD is powered is thought
Road；
Wherein, the converter is arranged between the PSE and the PD, and at least two power takings mouthful difference of the converter
A PSE interfaces are connected, a power supply port of the converter is connected with the PD；
Wherein, the change-over circuit, will in the input power needed for the power taking mouthful being connected with PSE is adjusted according to the power consumption number
Input power needed for each power taking being connected with PSE interfaces mouthful be set to it is equal, or, each is connected with PSE interfaces
Input power needed for power taking mouthful is set to special ratios relation.
4. converter according to claim 3, it is characterised in that the power taking being connected in the change-over circuit with PSE interfaces
It is connected after the output end combining of mouth correspondence load with power supply port.
5. a kind of POE system, including：Power supply unit PSE and powered device PD；Characterized in that, also including：Conversion
Device：
The converter includes：
At least two power takings mouthful, at least one power supply port and, power consumption number needed for for detecting the power supply port, and according to described
Input power needed for the power taking mouthful that power consumption number regulation is connected with PSE；Defeated needed for the power taking being connected with PSE interfaces mouthful
Enter after power adjusting success, processing is merged to the power that the power taking mouthful is obtained, after being merged by power supply port output
Power, think the change-over circuit that the PD is powered；
Wherein, the converter is arranged between the PSE and the PD, and at least two power takings mouthful difference of the converter
A PSE interfaces are connected, a power supply port of the converter is connected with the PD；
Wherein, the change-over circuit, will in the input power needed for the power taking mouthful being connected with PSE is adjusted according to the power consumption number
Input power needed for each power taking being connected with PSE interfaces mouthful be set to it is equal, or, each is connected with PSE interfaces
Input power needed for power taking mouthful is set to special ratios relation.
6. system according to claim 5, it is characterised in that the power taking mouthful being connected in the change-over circuit with PSE interfaces
It is connected after the output end combining of correspondence load with power supply port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110459644.3A CN103384199B (en) | 2011-12-31 | 2011-12-31 | A kind of method of supplying power to, converter and POE system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110459644.3A CN103384199B (en) | 2011-12-31 | 2011-12-31 | A kind of method of supplying power to, converter and POE system |
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| CN105049216B (en) * | 2015-08-25 | 2018-10-12 | 上海斐讯数据通信技术有限公司 | A kind of Power over Ethernet method and power supply system |
| CN106685668A (en) * | 2015-11-10 | 2017-05-17 | 中兴通讯股份有限公司 | Active Ethernet power supply resource processing method and apparatus |
| CN105357017B (en) * | 2015-11-16 | 2018-06-19 | 上海斐讯数据通信技术有限公司 | Stablize the system and method for POE supply voltages |
| WO2018035810A1 (en) * | 2016-08-25 | 2018-03-01 | 深圳市大疆创新科技有限公司 | Card reader |
| CN107147503B (en) * | 2017-04-28 | 2020-06-02 | 华为技术有限公司 | Powered device and POE system |
| CN106899415A (en) * | 2017-04-28 | 2017-06-27 | 上海斐讯数据通信技术有限公司 | It is a kind of to utilize the two POE mouthfuls system and method for common power supply |
| CN107135082A (en) * | 2017-04-28 | 2017-09-05 | 上海斐讯数据通信技术有限公司 | A kind of system and method powered jointly using two power supply end equipments |
| CN108521334A (en) * | 2018-03-30 | 2018-09-11 | 深圳市云谷创新科技有限公司 | A kind of POE power supply systems |
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