CN103683482A - Hot plug and unplug redundant Potential Difference (PD) power supply device - Google Patents
Hot plug and unplug redundant Potential Difference (PD) power supply device Download PDFInfo
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- CN103683482A CN103683482A CN201310743696.2A CN201310743696A CN103683482A CN 103683482 A CN103683482 A CN 103683482A CN 201310743696 A CN201310743696 A CN 201310743696A CN 103683482 A CN103683482 A CN 103683482A
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Abstract
The invention relates to the field of equipment power supply, in particular to a hot plug and unplug redundant Potential Difference (PD) power supply device which comprises an adapter, a PD power supply module, a hot plug and unplug redundant control circuit and a switching circuit. The PD power supply module is used for being connected with a network exchanger, the hot plug and unplug redundant control circuit is connected with a voltage output port of the PD power supply module trough a hot plug and unplug interface, and the hot plug and unplug redundant control circuit is further connected with the switching circuit through the hot plug and unplug interface and connected with a load through the switching circuit. A voltage output port of the adapter is connected with the switching circuit, and the switching circuit is connected with the load. The hot plug and unplug redundant PD power supply device effectively uses communication power sources in a network switch, and accordingly has an energy conservation effect; can enlarge survival space of electric equipment and make the best of clean energy of network communication; can save electric consumption, save cost for customers and meet product use requirements of the customers.
Description
Technical field
The equipment that the present invention relates to, for electrical domain, more specifically, relates to a kind of hot-swappable redundancy PD electric supply installation.
Background technology
The processor devices such as video acquisition box/decoder box/coding box are all generally to adopt the adapter of external AC-DC to power, and adapter often volume is large, efficiency is low, generates heat high, is difficult for built-inly, makes its power consumption many, not energy-conservation.And processor device is when mate with switch, in switch-48V communication power supply a kind of clean available energy of can yet be regarded as, with the power supply in switch, provide a kind of supply power mode for the power consumption equipment as video acquisition box.But at actual POE (Power Over Ethernet, Power over Ethernet) in power supply, PSE (feeder ear equipment, Power Sourcing Equipment) with PD (receiving end equipment, Powered Device) highest standard IEEE802.3at that will be satisfied, this substandard maximum PD power output is 25.5W, and the power of actual power consumption equipment is while being greater than this value, just do not have suitable PD power supply to mate with PSE power supply, in view of highest standard, meet equipment electricity consumption requirement, PD and PSE scope of design must have been limited, improved so greatly application cost, do not meet user's cost requirement.
And under existing PD circuit module, when power consumption equipment power is greater than the 25.5w of standard-required, single PD power supply can normally be worked because underpower cannot guarantee power consumption equipment.
Summary of the invention
The present invention is at least one defect (deficiency) overcoming described in above-mentioned prior art, provides a kind of and carries with easy for installation, can effectively utilize communication power supply in network exchange, plays the hot-swappable redundancy PD electric supply installation of energy-saving effect.
For solving the problems of the technologies described above, technical scheme of the present invention is as follows:
A kind of hot-swappable redundancy PD electric supply installation, comprise adapter, also comprise PD power module, hot-swappable redundancy control circuit, commutation circuit, PD power module is for being connected with the network switch, hot-swappable redundancy control circuit is connected with the Voltage-output port of PD power module by hot-swappable interface, hot-swappable redundancy control circuit is also connected with commutation circuit respectively by hot-swappable interface, and the Voltage-output port of adapter is connected with commutation circuit, and commutation circuit is connected with load.
Compared with prior art, the beneficial effect of technical solution of the present invention is:
(1) the present invention has increased hot-swappable redundant circuit and commutation circuit on the PD of prior art power module, utilize this hot-swappable redundant circuit and existing adapter jointly for the processor devices such as video acquisition box, coding box, decoder box provide supply power mode flexibly, effectively utilize communication power supply in the network switch, played energy-conservation effect.The living space of power consumption equipment can be expanded, the clean energy resource of network communication can be made full use of again, can electrical energy saving, for user saves cost, can meet again the user demand of client's product.
(2) hot-swappable redundant circuit of the present invention is to connect load and commutation circuit by hot-swappable interface, is easy to carry, and is convenient to connect and install, easy to use, is easy to promote.
(3) the present invention utilizes commutation circuit between main power source adapter and auxiliary power supply PD power module, to do automatic switching, makes the supply power mode of various processor devices more flexible, handled easily.
Accompanying drawing explanation
Fig. 1 is the Organization Chart of a kind of hot-swappable redundancy PD electric supply installation specific embodiment of the present invention.
Fig. 2 is the physical circuit figure of hot-swappable redundancy control circuit and commutation circuit in the present invention.
Fig. 3 is the Organization Chart of PD power module and hot-swappable redundancy control circuit in the present invention.
Fig. 4 is PD power module specific implementation circuit diagram in the present invention.
Fig. 5 is PD power module specific implementation circuit diagram in the present invention.
Embodiment
Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent;
For better explanation the present embodiment, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product;
To those skilled in the art, in accompanying drawing some known configurations and explanation thereof may to omit be understandable.
In description of the invention, it will be appreciated that, term " first ", " second " be only for describing object, and can not be interpreted as the quantity of indication or hint relative importance or implicit indicated technical characterictic.Thus, " first " of restriction is, one or more these features can be expressed or impliedly be comprised to the feature of " second ".In description of the invention, except as otherwise noted, the implication of " a plurality of " is two or more.
In description of the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, can be also indirectly to connect by intermediary, can say the connection of two element internals.For the ordinary skill in the art, can concrete condition understand above-mentioned term at concrete meaning of the present invention.
Below in conjunction with drawings and Examples, technical scheme of the present invention is described further.
As so-called in Fig. 1, be the Organization Chart of a kind of hot-swappable redundancy PD electric supply installation specific embodiment of the present invention.Referring to Fig. 1, a kind of hot-swappable redundancy PD electric supply installation of this specific embodiment comprises adapter 1, PD power module 2, hot-swappable redundancy control circuit 3, commutation circuit 4, PD power module 2 is for being connected with the network switch, hot-swappable redundancy control circuit 3 is connected with the Voltage-output port of PD power module 1 by hot-swappable interface, hot-swappable redundancy control circuit 3 is also connected with commutation circuit 4 with the Voltage-output port of commutation circuit 4 Payload attach fittings 1 by hot-swappable interface, and commutation circuit 4 is connected with load 5.
In the present embodiment, hot-swappable redundancy control circuit 3 and adapter 1 all come to load 5 power supplies by the switching of commutation circuit 4.
The power consumption equipments such as video acquisition box generally adopt AC-DC(interchange to turn direct-current switch power supply) power supply, the present invention proposes by the communication power supply in the network switch is that the equipment such as video acquisition box are powered, PD power supply is exactly such power supply, when AC-DC supply voltage exists, by commutation circuit 4, can only power by AC-DC supply voltage, if while having the network switch, for energy-conservation, can select to adopt PD power module 2 to power, AC-DC main power source and auxiliary power supply PD power supply can utilize commutation circuit 4 to do automatic switching like this.This makes in the middle of practical application, such as signal processor power consumption equipments such as collecting cassette/coding box/decoder box, in its supply power mode, adopt more effective ways, make its supply power mode more flexible, handled easily, changes traditional supply power mode, on the supply power mode basis in conjunction with traditional, for these processor devices have increased the supply power mode by the network switch newly, specific works process is:
When adapter 1 power supply, the network switch does not need to provide power supply;
When adapter 1 is not worked, through commutation circuit 4, communication power supply in the network switch provides energy to PD power module 2, and after PD power module 2 work, to impel commutation circuit 4 conductings and make the output voltage of PD power module 2 can be added to power consumption equipment be in load 5 to output voltage;
This programme, for the processor devices such as video acquisition box, coding box, decoder box provide supply power mode flexibly, has effectively utilized communication power supply in the network switch, has played energy-conservation effect.The living space of power consumption equipment can be expanded, the clean energy resource of network communication can be made full use of again, can electrical energy saving, for user saves cost, can meet again the user demand of client's product.And the hot-swappable redundancy control circuit 3 in the present embodiment is with hot-swappable interface, by hot-swappable interface, can be connected to easily PD power module 1 and load 5, realizes portable mounting means.
In specific implementation process, PD power module 1 and hot-swappable redundancy control circuit 3 correspondences arrange at least one, and at least one hot-swappable redundancy control circuit is connected to commutation circuit by hot-swappable interface.When the increase of output power of power consumption equipment, as more than increasing to 25.5W, can be load 5 power supplies by a plurality of PD power modules 1 simultaneously, so making also can redundancy of effort with the PD power module 1 of redundancy and hot-swappable function, PD Power supply when realizing power consumption equipment power and being greater than 25.5w, meet the normal electricity consumption of high-powered processor, guaranteed the stability of system.As shown in Figure 1, be provided with two PD power modules 1 for load 5 power supplies, accordingly, hot-swappable redundancy control circuit 3 also correspondence arranges two, two PD power modules 1 are connected respectively two hot-swappable redundancy control circuits 3, two hot-swappable redundancy control circuits 3 are connected respectively in commutation circuit 4
In specific implementation process, hot-swappable redundancy control circuit can adopt TPS2412 chip and N-MOS pipe to realize, concrete circuit diagram as shown in Figure 2:
The grid of N-MOS pipe MOS4, source electrode, drain electrode are connected with gate pole GATE, A end, the C end of TPS2412 chip U81 respectively, the BYP end of TPS2412 chip U81 is connected to the source electrode of N-MOS pipe MOS4 by a capacitor C 791, the source electrode of N-MOS pipe MOS4 is connected to the Voltage-output port (+12V1-POE) of PD power module by hot-swappable interface, the drain electrode that the VDD of TPS2412 chip U81 and C end are attempted by N-MOS pipe MOS4 forms redundant circuit and is connected to commutation circuit by hot-swappable interface.When the pressure drop between the A of TPS2412 chip U81 end and C end surpasses certain voltage as 10 millivolts, the GATE output high level of TPS2412 chip U81 drives outside N-MOS pipe MOS4, makes PD power module 2 output voltages to load 5 power supplies.In like manner, another the hot-swappable redundant circuit described in Fig. 2 has comprised TPS2412 chip U84 and N-MOS pipe MOS5, and its connected mode and above-mentioned identical, repeats no more again.
In specific implementation process, as shown in Figure 3, PD power module comprises the bridge rectifier A connecting in turn, PD power grade testing circuit B, PWM modulation circuit C, high frequency power conversion and transformer circuit E, output rectification circuit F, bridge rectifier A is for interconnection network switch, network exchange electromechanical source is PSE interface direct voltage after bridge rectifier A, this PSE interface direct voltage is connected to PWM modulation circuit C, the output port of output rectification circuit F is connected to hot-swappable redundant circuit 3 as Voltage-output port, the output port of output rectification circuit F is also connected with output signal negative-feedback circuit D, output signal negative-feedback circuit D is connected to PWM modulation circuit C, PWM modulation circuit C is also connected with chip power supply circuit.
When network exchange electromechanical source is PSE interface direct voltage after this bridge rectifier A, this d. c. voltage signal is arrived and is controlled IC by a resistance feedback, to obtain POE detection signal, now PWM modulation circuit C starts working, PSE interface direct voltage is by copped wave, this energy is passed to secondary end through high frequency transformer, passes to secondary energy grade and is judged by PD power-sensing circuit B, to meet standard IEEE 802.3at..
As shown in Figures 4 and 5, be the physical circuit figure of PD power module of the present invention and hot-swappable redundancy control circuit.In physical circuit of the present invention, control IC(U61) PSE signal is differentiated, complete PD power stage simultaneously and judge, finally PSE voltage chopping is become energy is outputed to after high-frequency direct-current secondary.
Network switch supply voltage is converted to high frequency chopping direct voltage after bridge rectifier A, this high frequency chopping direct voltage is added on the armature winding of high frequency power conversion and transformer circuit E, when high frequency power switch conduction, the energy loading on armature winding is all transferred to output powering load by secondary winding and to the inductive circuit F energy storage of exporting, now after the output rectification circuit F rectification of secondary end, gives outputting inductance energy storage and load energy is provided.When high frequency power pipe ends, load provides energy by outputting inductance circuit F energy storage, and synchronous freewheeling pipe and outputting inductance form closed-loop path provides energy for load, and the high frequency chopping direct voltage of primary side is added in main metal-oxide-semiconductor two ends.
During concrete enforcement, more than the switching frequency of control chip U61 can being brought up to 245KHz, the high power density of PD power module 1 is embodied, PD power supply as the exportable 25W of maximum, can design the product of small size high power density, be easy to carry, be convenient to hot-swappablely, save usage space.
In specific implementation process, the physical circuit of commutation circuit as shown in Figure 2, described commutation circuit comprises power schottky rectifier U57, P-MOS pipe, resistance R 671, resistance 694, electric capacity 743, electric capacity 772 and electric capacity 773, the Voltage-output port of adapter (VD12.0_DC-IN shown in Fig. 2) connects the 1st end of power schottky rectifier, the 1st end of power schottky rectifier is also distinguished the grid of contact resistance R671 one end and P-MOS pipe, resistance R 671 other end ground connection, the drain electrode of P-MOS pipe is connected to the 3rd end of power schottky rectifier, the 4th end of power schottky rectifier connects load (VD12.0_0 shown in Fig. 2), the source electrode of P-MOS pipe is connected to hot-swappable redundancy control circuit, after resistance 694 and electric smelting C743 series connection, be connected in parallel between the drain electrode and source electrode of P-MOS pipe, capacitor C 773 is connected in parallel between the 1st end and the 3rd end of power schottky rectifier, capacitor C 772 is connected in parallel between the grid and source electrode of P-MOS pipe.
When the Voltage-output of main power source AC-DC, the G utmost point (grid) that makes P-MOS pipe in high level and by, the output voltage of the auxiliary power supply PD power module being connected with the S utmost point (source electrode) of P-MOS can not be directly the power consumption equipment power supplies such as video acquisition box, and when the output voltage of main power source AC-DC be during lower than 11.6V, the G utmost point of P-MOS pipe makes P-MOS conducting lower than S level, P-MOS pipe is as switch, and the threshold values in grid source is-0.4V, when the voltage difference in grid source will make DS conducting for-0.4V.PD power supply and AC-DC electric power output voltage are realized and being automatically switched like this.Succinct and the high performance-price ratio of this technology.
When specific implementation, power schottky rectifier U57 can adopt STPS640CB chip.
The corresponding same or analogous parts of same or analogous label;
In accompanying drawing, describe position relationship for only for exemplary illustration, can not be interpreted as the restriction to this patent;
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all execution modes.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in the protection range of the claims in the present invention.
Claims (6)
1. a hot-swappable redundancy PD electric supply installation, comprise adapter, it is characterized in that, also comprise PD power module, hot-swappable redundancy control circuit, commutation circuit, PD power module is for being connected with the network switch, and hot-swappable redundancy control circuit is connected with the Voltage-output port of PD power module by hot-swappable interface, and hot-swappable redundancy control circuit is also connected with commutation circuit by hot-swappable interface, the Voltage-output port of adapter is connected with commutation circuit, and commutation circuit is connected with load.
2. hot-swappable redundancy PD electric supply installation according to claim 1, it is characterized in that, described hot-swappable redundancy control circuit comprises TPS2412 chip and N-MOS pipe, the grid of N-MOS pipe, source electrode, drain electrode respectively with the gate pole of TPS2412 chip, A end, C holds connection, the BYP end of TPS2412 chip is connected to the source electrode of N-MOS pipe by an electric capacity, the source electrode of N-MOS pipe is connected to the Voltage-output port of PD power module by hot-swappable interface, the drain electrode that the VDD of TPS2412 and C end are attempted by N-MOS pipe forms redundant circuit and is connected to load and commutation circuit by hot-swappable interface.
3. hot-swappable redundancy PD electric supply installation according to claim 1, it is characterized in that, described commutation circuit comprises power schottky rectifier, P-MOS pipe, resistance R 671, resistance 694, electric capacity 743, electric capacity 772 and electric capacity 773, the Voltage-output port of adapter connects the 1st end of power schottky rectifier, the 1st end of power schottky rectifier is also distinguished the grid of contact resistance R671 one end and P-MOS pipe, resistance R 671 other end ground connection, the drain electrode of P-MOS pipe is connected to the 3rd end of power schottky rectifier, the 4th end of power schottky rectifier connects load, the source electrode of P-MOS pipe is connected to hot-swappable redundancy control circuit, after resistance 694 and electric smelting C743 series connection, be connected in parallel between the drain electrode and source electrode of P-MOS pipe, capacitor C 773 is connected in parallel between the 1st end and the 3rd end of power schottky rectifier, capacitor C 772 is connected in parallel between the grid and source electrode of P-MOS pipe.
4. hot-swappable redundancy PD electric supply installation according to claim 3, is characterized in that, described power schottky rectifier is STPS640CB chip.
5. hot-swappable redundancy PD electric supply installation according to claim 1, it is characterized in that, described PD power module and hot-swappable redundancy control circuit correspondence arrange at least one, and at least one hot-swappable redundancy control circuit is connected to load and commutation circuit by hot-swappable interface.
6. according to the hot-swappable redundancy PD electric supply installation described in claim 1-5 any one, it is characterized in that, described PD power module comprises the bridge rectifier connecting in turn, PD power grade testing circuit, PWM modulation circuit, high frequency power conversion and transformer circuit, output rectification circuit, bridge rectifier is for interconnection network switch, network exchange electromechanical source is PSE interface direct voltage after bridge rectifier, this PSE interface direct voltage is connected to PWM modulation circuit, the output port of output rectification circuit is connected to hot-swappable redundant circuit as Voltage-output port, the output port of output rectification circuit is also connected with output signal negative-feedback circuit, output signal negative-feedback circuit is connected to PWM modulation circuit, PWM modulation circuit is also connected with chip power supply circuit.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111787293A (en) * | 2020-08-11 | 2020-10-16 | 威创集团股份有限公司 | Video coding system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436786A (en) * | 2007-11-14 | 2009-05-20 | 环隆电气股份有限公司 | Power supply switching device and network appliance |
| CN202940740U (en) * | 2011-12-28 | 2013-05-15 | 宁波五马电器有限公司 | High-power PWM type switch voltage-stabilized power supply |
-
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- 2013-12-27 CN CN201310743696.2A patent/CN103683482B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436786A (en) * | 2007-11-14 | 2009-05-20 | 环隆电气股份有限公司 | Power supply switching device and network appliance |
| CN202940740U (en) * | 2011-12-28 | 2013-05-15 | 宁波五马电器有限公司 | High-power PWM type switch voltage-stabilized power supply |
Non-Patent Citations (2)
| Title |
|---|
| 张晓健、张志新: "几种实用的低电压冗余电源方案设计", 《单片机与嵌入式系统应用》 * |
| 赵红红: "POE软件模块设计及其在通信设备上的实现", 《中国优秀硕士学位论文全文数据库信息科技辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111787293A (en) * | 2020-08-11 | 2020-10-16 | 威创集团股份有限公司 | Video coding system |
| WO2022032973A1 (en) * | 2020-08-11 | 2022-02-17 | 威创集团股份有限公司 | Video encoding system |
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| CN103683482B (en) | 2015-10-07 |
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