CN103117643B - For the power control circuit of optical network unit - Google Patents
For the power control circuit of optical network unit Download PDFInfo
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- CN103117643B CN103117643B CN201310076832.7A CN201310076832A CN103117643B CN 103117643 B CN103117643 B CN 103117643B CN 201310076832 A CN201310076832 A CN 201310076832A CN 103117643 B CN103117643 B CN 103117643B
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Abstract
The invention discloses a kind of power control circuit for optical network unit.Wherein, this power control circuit comprises: power supply input circuit and flow equalizing circuit, and wherein, power supply input circuit comprises DC power supply interface and AC power interface, and wherein, DC power supply interface is connected with DC power supply, for receiving the first electric energy of DC power supply; AC power interface is connected with AC power, for receiving the second electric energy of AC power; Flow equalizing circuit is connected with DC power supply interface, AC power interface and optical network unit respectively, for carrying out current-sharing process to the first electric energy and the second electric energy, and exports the electric energy after current-sharing process to optical network unit.By the power control circuit for optical network unit of the present invention, achieve electric power optical network unit support direct current and exchange duplicate supply pattern.
Description
Technical field
The present invention relates to communication field, in particular to a kind of power control circuit for optical network unit.
Background technology
Existing electric power optical network unit (i.e. ONU) hardware device can only support the pattern of DC power supply or ac power supply, but electric power ONU hardware device is larger by externally fed environmental impact, higher to the reliability dependency degree in outside supply rings border, when D. C. power source breakdown or AC power failure, electric power ONU hardware device functional reliability is low even cannot work, thus very easily causes suspension.In addition, even if some ONU equipment supports that the redundancy backup of power supply is not supported in the input of the power supply of two kinds of patterns yet in prior art, although also namely DC power supply or AC power can be used to power, but one can only be selected use, if the supply power mode selected at that time breaks down, ONU equipment still cannot work.
Only support direct current or Alternating Current Power Supply pattern for electric power optical network unit in prior art, thus when power failure, electric power optical network unit cannot work and cause the problem of suspension, not yet proposes effective solution at present.
Summary of the invention
Direct current or Alternating Current Power Supply pattern is only supported for correlation technique electric power optical network unit, thus when power failure, electric power optical network unit cannot work and cause the problem of suspension, at present effective solution is not yet proposed, for this reason, main purpose of the present invention is to provide a kind of power control circuit for optical network unit, to solve the problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of power control circuit for optical network unit, this power control circuit comprises: power supply input circuit and flow equalizing circuit, wherein, power supply input circuit comprises DC power supply interface and AC power interface, wherein, DC power supply interface is connected with DC power supply, for receiving the first electric energy of DC power supply; AC power interface is connected with AC power, for receiving the second electric energy of AC power; Flow equalizing circuit is connected with DC power supply interface, AC power interface and optical network unit respectively, for carrying out current-sharing process to the first electric energy and the second electric energy, and exports the electric energy after current-sharing process to optical network unit.
Further, power control circuit also comprises: the first protective circuit, and the first protective circuit is connected between flow equalizing circuit and optical network unit; Power supply input circuit comprises the second protective circuit, and the second protective circuit is connected between DC power supply interface and flow equalizing circuit.
Further, first protective circuit comprises: the first electric capacity, the second electric capacity, the 3rd electric capacity and the 4th electric capacity, wherein, the first end of the first electric capacity and the first end of the second electric capacity are connected to first node, second end of the first electric capacity and the second end of the second electric capacity are connected to Section Point, and the first end of the 3rd electric capacity is connected to first node, and the second end of the 3rd electric capacity is connected to Section Point, the first end of the 4th electric capacity is connected to first node, and the second end of the 4th electric capacity is connected to Section Point; First node is connected with the first power supply, for inputting the 3rd electric energy of the first power supply, is the first electric capacity, the second electric capacity, the 3rd electric capacity and the 4th capacitances to supply power to use the 3rd electric energy; First node is connected with the first end of optical network unit, and the second economize on electricity is connected with the second end of optical network unit; Section Point ground connection.
Further, second protective circuit comprises: lightning protection circuit, the first inductance, the second inductance and the first diode, wherein, the first end of lightning protection circuit is connected with the first binding post of DC power supply interface, and the second end of lightning protection circuit is connected with the second binding post of DC power supply interface; The first end of the first inductance is connected with the first end of lightning protection circuit, and the second end of the first inductance is connected with flow equalizing circuit; The first end of the second inductance is connected with the second end of lightning protection circuit, and the second end of the second inductance is connected with flow equalizing circuit; The first end of the first diode is connected with the second end of the first inductance, and the second end of the first diode is connected with the second end of the second inductance.
Further, flow equalizing circuit comprises: the first rectifying tube and the second rectifying tube, wherein, first binding post of the first end of the first rectifying tube is connected with the second end of the first inductance, second binding post of the first end of the first rectifying tube is connected with the first binding post of AC power interface, and the second end of the first rectifying tube is connected with first node; The first end of the second rectifying tube is connected with the second binding post of AC power interface, and the second end of the second rectifying tube is connected with Section Point.
Further, lightning protection circuit comprises: the first anti-thunder tube, the second anti-thunder tube and the 3rd anti-thunder tube, wherein, the first end of the first anti-thunder tube is connected with the first binding post of DC power supply interface, the first end of the second anti-thunder tube is connected with the second binding post of DC power supply interface, second end of the first anti-thunder tube is connected with the second end of the second anti-thunder tube, and the first end of the 3rd anti-thunder tube is connected with the first end of the second anti-thunder tube, the second end ground connection of the 3rd anti-thunder tube.
Further, power control circuit also comprises the first change-over circuit, and the first change-over circuit is connected with flow equalizing circuit, and it is the operating voltage of optical network unit that the first change-over circuit is used for the voltage transitions of the electric energy after current-sharing process.
Further, power supply input circuit also comprises the second change-over circuit, and AC power interface is connected with flow equalizing circuit by the second change-over circuit, and the second electric energy is that the electric energy of AC power is converted to the electric energy after direct current by the second change-over circuit.
Pass through the present invention, adopt the power control circuit being used for optical network unit, by the first electric energy of DC power supply interface DC power supply, the second electric energy of AC power is received by AC power interface, then by flow equalizing circuit, current-sharing process is carried out to the first electric energy and the second electric energy, and by the power delivery after current-sharing process to optical network unit, both supported that direct current supply also supported Alternating Current Power Supply, and the flow equalizing circuit in power control circuit supports redundancy protecting and current-sharing process, when DC power supply breaks down, Alternating Current Power Supply can be used, when AC power breaks down, direct current supply can be used, thus by the backup of power of alterating and direct current, direct current can be met and exchange the long-term work of duplicate supply pattern, solve electric power optical network unit in prior art and only support direct current or Alternating Current Power Supply pattern, thus when power failure, electric power optical network unit cannot work and cause the problem of suspension, achieve electric power optical network unit support direct current and exchange duplicate supply pattern, greatly improve optical network unit to run without interruption for a long time ability, thus the redundancy protecting process that realization is powered to optical network unit.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the power control circuit for optical network unit according to the embodiment of the present invention;
Fig. 2 is the structural representation according to the power control circuit for optical network unit embodiment illustrated in fig. 1;
Fig. 3 is the structural representation of the power control circuit for optical network unit according to the first embodiment; And
Fig. 4 is the structural representation of the power control circuit for optical network unit according to the second embodiment.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Fig. 1 is the structural representation of the power control circuit for optical network unit according to the embodiment of the present invention; Fig. 2 is the structural representation according to the power control circuit for optical network unit embodiment illustrated in fig. 1; Fig. 3 is the structural representation of the power control circuit for optical network unit according to the first embodiment; Fig. 4 is the structural representation of the power control circuit for optical network unit according to the second embodiment.
As shown in Figures 1 to 4, this power control circuit can comprise: power supply input circuit 10 and flow equalizing circuit 30, wherein, power supply input circuit 10 comprises DC power supply interface 11 and AC power interface 13, wherein, DC power supply interface 11 is connected with DC power supply, for receiving the first electric energy of DC power supply; AC power interface 13 is connected with AC power, for receiving the second electric energy of AC power; Flow equalizing circuit 30 is connected with DC power supply interface 11, AC power interface 13 and optical network unit 50 respectively, for carrying out current-sharing process to the first electric energy and the second electric energy, and exports the electric energy after current-sharing process to optical network unit 50.
Adopt the power control circuit for optical network unit of the present invention, by the first electric energy of DC power supply interface DC power supply, the second electric energy of AC power is received by AC power interface, then by flow equalizing circuit, current-sharing process is carried out to the first electric energy and the second electric energy, and by the power delivery after current-sharing process to optical network unit, both supported that direct current supply also supported Alternating Current Power Supply, and the flow equalizing circuit in power control circuit supports redundancy protecting and current-sharing process, when DC power supply breaks down, Alternating Current Power Supply can be used, when AC power breaks down, direct current supply can be used, thus by the backup of power of alterating and direct current, direct current can be met and exchange the long-term work of duplicate supply pattern, solve electric power optical network unit in prior art and only support direct current or Alternating Current Power Supply pattern, thus when power failure, electric power optical network unit cannot work and cause the problem of suspension, achieve electric power optical network unit support direct current and exchange duplicate supply pattern, greatly improve optical network unit to run without interruption for a long time ability, thus the redundancy protecting process that realization is powered to optical network unit.
Particularly, flow equalizing circuit is used for when the load of power control circuit changes, and the output voltage of two power supplys is changed identical, and the output current of two power supplys is shared equally by power fraction.
Wherein, AC power can be conventional 110 ~ 220VAC electricity network power supply, also can be external 12 ~ 24VDC power supply or storage battery power supply.
Particularly, in above-described embodiment, preferred main power source is DC power supply, and it can be that the power supply of 12 ~ 24VDC inputs electric energy (power supply shown in Fig. 4 is 12V's) by DC power supply interface 11; Stand-by power supply is AC power, and AC power can adopt built-in 220VAC power module, and AC power interface 13 meets the requirement of safety indices, its power output 12V2.5A(30W).Wherein, safety is exactly meet relevant safety and electromagnetic compatibility standard.
In the above-described embodiments, main power source in power control circuit and stand-by power supply are all connected and are in power supply state, the now power supply of optical network unit is powered by the current-sharing of two-way power supply, particularly, is and realizes two-way current-sharing by rectifying tube and power and be merged into a road and power input.When any road power failure; flow equalizing function lost efficacy; can the power supply of normal power supply be that optical network unit is powered by another road; this road power supply is directly powered separately to equipment by rectifying tube; thus realize to optical network unit 50 direct current with exchange duplicate supply pattern; greatly improve the long-term uninterrupted operation ability of optical network unit 50, thus realize the redundancy protecting process to optical network unit 50 power supply.(need inventor to further illustrate according to annotations and comments 3 herein, otherwise there is the defect of insufficient disclosure)
In the above embodiment of the present invention, power control circuit can also comprise: the first protective circuit 70, first protective circuit 70 is connected between flow equalizing circuit 30 and optical network unit 50; Power supply input circuit 10 comprises the second protective circuit 15, second protective circuit 15 and is connected between DC power supply interface 11 and flow equalizing circuit 30.
Wherein, first protective circuit 70 can comprise: the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3 and the 4th electric capacity C4, wherein, the first end of the first electric capacity C1 and the first end of the second electric capacity C2 are connected to first node, second end of the first electric capacity C1 and second end of the second electric capacity C2 are connected to Section Point, the first end of the 3rd electric capacity C3 is connected to first node, second end of the 3rd electric capacity C3 is connected to Section Point, the first end of the 4th electric capacity C4 is connected to first node, and second end of the 4th electric capacity C4 is connected to Section Point; First node is connected with the first power supply Q1, and for inputting the 3rd electric energy of the first power supply Q1, to use, the 3rd electric energy is the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3 and the 4th electric capacity C4 power; First node is connected with the first end of optical network unit 50, and the second economize on electricity is connected with the second end of optical network unit 50; Section Point ground connection.
The second protective circuit 15 in above-described embodiment can comprise: lightning protection circuit, the first inductance L 1, second inductance L 2 and the first diode D1, wherein, the first end of lightning protection circuit is connected with the first binding post of DC power supply interface 11, and the second end of lightning protection circuit is connected with the second binding post of DC power supply interface 11; The first end of the first inductance L 1 is connected with the first end of lightning protection circuit, and the second end of the first inductance L 1 is connected with flow equalizing circuit 30; The first end of the second inductance L 2 is connected with the second end of lightning protection circuit, and the second end of the second inductance L 2 is connected with flow equalizing circuit 30; The first end of the first diode D1 is connected with the second end of the first inductance L 1, and second end of the first diode D1 is connected with the second end of the second inductance L 2.
Wherein, the first inductance L 1 in above-described embodiment and the second effect of inductance L 2 in direct current power supply loop suppress direct current surge impact on the impact of late-class circuit.
More specifically, lightning protection circuit can comprise: the first anti-thunder tube F1, the second anti-thunder tube F2 and the 3rd anti-thunder tube F3, wherein, the first end of the first anti-thunder tube F1 is connected with the first binding post of DC power supply interface 11, the first end of the second anti-thunder tube F2 is connected with the second binding post of DC power supply interface 11, second end of the first anti-thunder tube F1 is connected with second end of the second anti-thunder tube F2, the first end of the 3rd anti-thunder tube F3 is connected with the first end of the second anti-thunder tube F2, the second end ground connection of the 3rd anti-thunder tube F3.
Particularly, the lightning protection circuit arranging the second protective circuit 15 in power control circuit can meet 4KV surge impact; Second protective circuit 15 adopts the mode of four Capacitance parallel connections, can meet optical network unit 50 power fail warning and the requirement of power supply roll-off characteristic.
Wherein, 4 electric capacity in second protective circuit 15 all have the effect of filtering and energy storage; it can preserve certain electricity after power supply falls; thus optical network unit can normally be worked in short-term; this chip of power supply prosecution in a short time can send alarm signal to EPON local side apparatus, to realize the reporting functions of power fail warning.
According to the abovementioned embodiments of the present invention, flow equalizing circuit 30 can comprise: the first rectifying tube Z1 and the second rectifying tube Z2, wherein, first binding post of the first end of the first rectifying tube Z1 is connected with the second end of the first inductance L 1, second binding post of the first end of the first rectifying tube Z1 is connected with the first binding post of AC power interface 13, and second end of the first rectifying tube Z1 is connected with first node; The first end of the second rectifying tube Z2 is connected with the second binding post of AC power interface 13, and second end of the second rectifying tube Z2 is connected with Section Point.
Wherein, the first rectifying tube Z1 can be two rectifying tube entering singly to go out.In the above-described embodiments, power while the first rectifying tube Z1 of the rear end in duplex feeding loop can realize DC power supply and AC power and there is counnter attack defencive function.
In the above embodiment of the present invention, power control circuit can also comprise the first change-over circuit 90, first change-over circuit 90 is connected with flow equalizing circuit 30, the operating voltage of the first change-over circuit 90 for by the voltage transitions of the electric energy after current-sharing process being optical network unit 50.
In addition, power supply input circuit 10 can also comprise the second change-over circuit 17, and AC power interface 13 is connected with flow equalizing circuit 30 by the second change-over circuit 17, and the second electric energy is that the electric energy of AC power is converted to the electric energy after direct current by the second change-over circuit 17.
From above description, can find out, present invention achieves following technique effect: adopt the power control circuit for optical network unit of the present invention, by the first electric energy of DC power supply interface DC power supply, the second electric energy of AC power is received by AC power interface, then by flow equalizing circuit, current-sharing process is carried out to the first electric energy and the second electric energy, and by the power delivery after current-sharing process to optical network unit, both supported that direct current supply also supported Alternating Current Power Supply, and the flow equalizing circuit in power control circuit supports redundancy protecting and current-sharing process, when DC power supply breaks down, Alternating Current Power Supply can be used, when AC power breaks down, direct current supply can be used, thus by the backup of power of alterating and direct current, direct current can be met and exchange the long-term work of duplicate supply pattern, solve electric power optical network unit in prior art and only support direct current or Alternating Current Power Supply pattern, thus when power failure, electric power optical network unit cannot work and cause the problem of suspension, achieve electric power optical network unit support direct current and exchange duplicate supply pattern, greatly improve optical network unit to run without interruption for a long time ability, thus the redundancy protecting process that realization is powered to optical network unit.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. for a power control circuit for optical network unit, it is characterized in that, comprising: power supply input circuit and flow equalizing circuit, wherein,
Described power supply input circuit comprises DC power supply interface and AC power interface, wherein,
Described DC power supply interface is connected with DC power supply, for receiving the first electric energy of described DC power supply;
Described AC power interface is connected with AC power, for receiving the second electric energy of described AC power;
Described flow equalizing circuit is connected with described DC power supply interface, described AC power interface and optical network unit respectively, for carrying out current-sharing process to described first electric energy and described second electric energy, and exports the electric energy after current-sharing process to described optical network unit,
Wherein, described flow equalizing circuit comprises: the first rectifying tube and the second rectifying tube, and described first rectifying tube is two rectifying tubes entering singly to go out;
Described power supply input circuit comprises the second protective circuit; described second protective circuit is connected between described DC power supply interface and described flow equalizing circuit; described second protective circuit comprises: lightning protection circuit, the first inductance, the second inductance and the first diode, wherein
The first end of described lightning protection circuit is connected with the first binding post of described DC power supply interface, and the second end of described lightning protection circuit is connected with the second binding post of described DC power supply interface;
The first end of described first inductance is connected with the first end of described lightning protection circuit, and the second end of described first inductance is connected with described flow equalizing circuit;
The first end of described second inductance is connected with the second end of described lightning protection circuit, and the second end of described second inductance is connected with described flow equalizing circuit;
The first end of described first diode is connected with the second end of described first inductance, and the second end of described first diode is connected with the second end of described second inductance;
Wherein, first binding post of the first end of described first rectifying tube is connected with the second end of described first inductance, second binding post of the first end of described first rectifying tube is connected with the first binding post of described AC power interface, and the second end of described first rectifying tube is connected with first node; The first end of described second rectifying tube is connected with the second binding post of described AC power interface; second end of described second rectifying tube is connected with Section Point, and the second end of described second rectifying tube is also connected with the second end of described second inductance in described second protective circuit.
2. power control circuit according to claim 1, is characterized in that, described power control circuit also comprises: the first protective circuit, and described first protective circuit is connected between described flow equalizing circuit and described optical network unit.
3. power control circuit according to claim 2, is characterized in that, described first protective circuit comprises: the first electric capacity, the second electric capacity, the 3rd electric capacity and the 4th electric capacity, wherein,
The first end of described first electric capacity and the first end of described second electric capacity are connected to described first node, second end of described first electric capacity and the second end of described second electric capacity are connected to described Section Point, the first end of described 3rd electric capacity is connected to described first node, second end of described 3rd electric capacity is connected to described Section Point, the first end of described 4th electric capacity is connected to described first node, and the second end of described 4th electric capacity is connected to described Section Point;
Described first node is connected with the first power supply, for inputting the 3rd electric energy of described first power supply, is described first electric capacity, described second electric capacity, described 3rd electric capacity and described 4th capacitances to supply power to use described 3rd electric energy;
Described first node is connected with the first end of described optical network unit, and described Section Point is connected with the second end of described optical network unit;
Described Section Point ground connection.
4. power control circuit according to claim 1, is characterized in that, described lightning protection circuit comprises: the first anti-thunder tube, the second anti-thunder tube and the 3rd anti-thunder tube, wherein,
The first end of described first anti-thunder tube is connected with the first binding post of described DC power supply interface, the first end of described second anti-thunder tube is connected with the second binding post of described DC power supply interface, second end of described first anti-thunder tube is connected with the second end of described second anti-thunder tube, the first end of described 3rd anti-thunder tube is connected with the first end of described second anti-thunder tube, the second end ground connection of described 3rd anti-thunder tube.
5. power control circuit as claimed in any of claims 1 to 4, is characterized in that, described power control circuit also comprises the first change-over circuit,
Described first change-over circuit is connected with described flow equalizing circuit, the operating voltage of described first change-over circuit for by the voltage transitions of the electric energy after current-sharing process being described optical network unit.
6. power control circuit as claimed in any of claims 1 to 4, is characterized in that, described power supply input circuit also comprises the second change-over circuit,
Described AC power interface is connected with described flow equalizing circuit by described second change-over circuit, and described second electric energy is that the electric energy of described AC power is converted to the electric energy after direct current by described second change-over circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310076832.7A CN103117643B (en) | 2013-03-11 | 2013-03-11 | For the power control circuit of optical network unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310076832.7A CN103117643B (en) | 2013-03-11 | 2013-03-11 | For the power control circuit of optical network unit |
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| CN103117643B true CN103117643B (en) | 2016-02-10 |
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| CN101674025A (en) * | 2009-10-12 | 2010-03-17 | 佛山市柏克电力设备有限公司 | Multiplexed output auxiliary switch power source powered by commercial power and battery |
| CN201490752U (en) * | 2009-08-03 | 2010-05-26 | 深圳市瑞必达电源有限公司 | Uninterruptable alternating current or direct current (AC/DC) power supply |
| CN201656756U (en) * | 2010-05-14 | 2010-11-24 | 浪潮电子信息产业股份有限公司 | AC/DC server power |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0946924A (en) * | 1995-07-24 | 1997-02-14 | Omron Corp | Uninterruptible power supply with solar battery |
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Patent Citations (4)
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|---|---|---|---|---|
| CN201490752U (en) * | 2009-08-03 | 2010-05-26 | 深圳市瑞必达电源有限公司 | Uninterruptable alternating current or direct current (AC/DC) power supply |
| CN101674025A (en) * | 2009-10-12 | 2010-03-17 | 佛山市柏克电力设备有限公司 | Multiplexed output auxiliary switch power source powered by commercial power and battery |
| CN201656756U (en) * | 2010-05-14 | 2010-11-24 | 浪潮电子信息产业股份有限公司 | AC/DC server power |
| CN102355047A (en) * | 2011-09-09 | 2012-02-15 | 北京世纪东方国铁科技股份有限公司 | Alternating current (AC)-direct current (DC) hybrid power supply of server |
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