CN101163018B - Power supply converter for an electro-receiving end equipment of an Ethernet power supply system - Google Patents

Power supply converter for an electro-receiving end equipment of an Ethernet power supply system Download PDF

Info

Publication number
CN101163018B
CN101163018B CN200610141678A CN200610141678A CN101163018B CN 101163018 B CN101163018 B CN 101163018B CN 200610141678 A CN200610141678 A CN 200610141678A CN 200610141678 A CN200610141678 A CN 200610141678A CN 101163018 B CN101163018 B CN 101163018B
Authority
CN
China
Prior art keywords
power supply
transformer
pin
ethernet
over
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN200610141678A
Other languages
Chinese (zh)
Other versions
CN101163018A (en
Inventor
蔡益昌
曾国宏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wistron Neweb Corp
Original Assignee
Wistron Neweb Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wistron Neweb Corp filed Critical Wistron Neweb Corp
Priority to CN200610141678A priority Critical patent/CN101163018B/en
Publication of CN101163018A publication Critical patent/CN101163018A/en
Application granted granted Critical
Publication of CN101163018B publication Critical patent/CN101163018B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The invention relates to a power supply converter which is used on the receiving end device of an ethernet power supply system. The power supply converter includes a first transformer, a second transformer and a bridge rectifier, wherein, the first transformer is connected with the first and second pins of an ethernet terminator, the second transformer is connected with the third and six pins of the ethernet terminator, and the bridge rectifier is coupled with the central tap of the first transformer and the central tap of the second transformer and used to rectify the power supply exproted by the central taps of the first and second transformers, which is supplied to the receiving end device.

Description

The power supply change-over device that is used for a receiving end equipment of a Power over Ethernet system
Technical field
The present invention relates to a kind of power supply change-over device that is used for a receiving end equipment of a Power over Ethernet system, particularly relate to a kind of power supply change-over device that can be applicable to the Ethernet receiving end equipment of 10Mbs, 100Mbs and 1000Mbs simultaneously.
Background technology
Power over Ethernet (Power Over Ethernet, POE) refer under existing Ethernet wiring architecture, in terminal equipment (as IP phone machine, wireless network access point, web camera etc.), kind equipment provides the technology of direct current supply for this reason at transmission of data signals.Power over Ethernet is also referred to as the LAN electric power system, and (Power Over LAN POL) or power supply formula Ethernet (ActiveEthernet), has kept the compatibility with existing Ethernet system and user.IEEE 802.3af standard is the new standard of Power over Ethernet system, and being has increased the directly relevant criterion of power supply of grid line on the basis of IEEE 802.3, is the expansion of existing ethernet standard, also is first international standard about power distribution.
According to IEEE 802.3af standard, a complete Power over Ethernet system comprises feeder ear equipment, and (Power Sourcing Equipment is PSE) with receiving end equipment (Powered Device, PD) two parts.Feeder ear equipment is used for power supply to receiving end equipment, also is the manager of whole Power over Ethernet process simultaneously.Therefore, receiving end equipment can obtain electric power by the RJ45 socket, and it can be ethernet devices such as the networking telephone, network camera, network access point, PDA(Personal Digital Assistant).
The Power over Ethernet system is divided into two kinds by the principle of cable power supply, and a kind of is by fourth, fifth pin and the 7th, the power supply of eight pins, and another kind then is by first and second pin and the 3rd, the power supply of six pins, as shown in Figures 1 and 2.What pay special attention to is, the pin position of Arabic numerals among Fig. 1 and Fig. 2 (1,2...8) expression standard five classes (Catalog 5) grid line.When by fourth, fifth pin and the 7th, the power supply of eight pins, fourth, fifth pin is connected to the positive pole of power supply, and the 7th, eight pins then are connected to the negative pole of power supply.When by first and second pin and the 3rd, the power supply of six pins, DC power supply is added in the mid point of transformer, does not influence the transmission of data, and first and second pin and the 3rd, six pins can be any polarity.
In addition, the mode of Power over Ethernet system power supply also is divided into two kinds, and a kind of is terminal cross-over connection method (End-Span), and another kind then is mid-span method (Mid-Span).Terminal cross-over connection method is the supply power mode by Fig. 1 or Fig. 2, and the transmission direct current is to receiving end equipment in the transmission data.The mid-span rule is to utilize the supply power mode of Fig. 1, by mid-span feeder ear equipment (Midspan PSE), uses the idle line that is not used in the Ethernet cable, transmits direct current, as shown in Figure 3.
According to IEEE 802.3af standard, feeder ear equipment can only be powered by the mode of one of Fig. 1 or Fig. 2, can two kinds of situations of simultaneous adaptation but receiving end equipment is necessary.Such requirement is not difficult to realize for the receiving end equipment of design 10Mbs and 100Mbs, reason is that the Ethernet equipment of 10Mbs and 100Mbs only uses two pairs of twisted-pair feeders (first and second pin and the 3rd, six pins) transmission data in standard five classes (Catalog 5) grid line, other two to (fourth, fifth pin and the 7th, eight pins) then by idle.Therefore, can design the receiving end equipment that is applicable to Fig. 1 or Fig. 2 simultaneously easily.Yet along with the evolution of network technology, Ethernet equipment can have been supported the transmission rate to 1000Mbs.Yet, the Ethernet equipment of 1000Mbs uses all twisted-pair feeder transmission data of standard five classes (Catalog 5) grid line, the Ethernet equipment that is different from 10Mbs or 100Mbs, make the defined Power over Ethernet of Fig. 1 to Fig. 3 system can't satisfy the Ethernet equipment of 10Mbs, 100Mbs and 1000Mbs simultaneously, thereby limited the development of Power over Ethernet system.
Summary of the invention
Therefore, main purpose of the present invention promptly is the power supply change-over device of a receiving end equipment of the Power over Ethernet system that is provided for.
The present invention also discloses a kind of power supply change-over device that is used for a receiving end equipment of a Power over Ethernet system, includes: one first transformer, and cross-over connection is in first pin and second pin of an Ethernet terminal; One second transformer, cross-over connection is in the 3rd pin and the 6th pin of this Ethernet terminal; One first bridge rectifier is coupled to the center tap of this first transformer and the center tap of this second transformer, is used for the power supply that the center tap of this first transformer and this second transformer is exported is carried out rectification, to supply power to this receiving end equipment; One the 3rd transformer, cross-over connection is in the 4th pin and the 5th pin of this Ethernet terminal; One the 4th transformer, cross-over connection is in the 7th pin and the 8th pin of this Ethernet terminal; And one second bridge rectifier, be coupled to the center tap of the 3rd transformer and the center tap of the 4th transformer, be used for the power supply that the center tap of the 3rd transformer and the 4th transformer is exported is carried out rectification, to supply power to this receiving end equipment.
The present invention also discloses a kind of power supply change-over device that is used for a receiving end equipment of a Power over Ethernet system, includes: one first transformer, and cross-over connection is in first pin and second pin of an Ethernet terminal; One second transformer, cross-over connection is in the 3rd pin and the 6th pin of this Ethernet terminal; One the 3rd transformer, cross-over connection is in the 4th pin and the 5th pin of this Ethernet terminal; One the 4th transformer, cross-over connection is in the 7th pin and the 8th pin of this Ethernet terminal; One switches the unit, include the center tap that one first end is coupled to this first transformer, one second end is coupled to the center tap of this second transformer, one the 3rd end is coupled to the center tap of the 3rd transformer, one the 4th end is coupled to the center tap of the 4th transformer, one first output, and one second output switch this first end of output and the voltage of this second end or the voltage of the 3rd end and the 4th end with this first output of cause and this second output; And a bridge rectifier, be coupled to this first output and this second output of this switch unit, be used for the power supply that this first output and this second output are exported is carried out rectification, to supply power to this receiving end equipment.
Description of drawings
Fig. 1 is the schematic diagram of existing Power over Ethernet system by fourth, fifth pin and the 7th, the power supply of eight pins.
Fig. 2 is the schematic diagram of existing Power over Ethernet system by first and second pin and the 3rd, the power supply of six pins.
Fig. 3 is the schematic diagram of the Power over Ethernet system of existing mid-span.
Fig. 4 is the schematic diagram of first embodiment of the invention power supply change-over device.
Fig. 5 is the schematic diagram of second embodiment of the invention power supply change-over device.
Fig. 6 is the schematic diagram of third embodiment of the invention power supply change-over device.
Fig. 7 is the schematic diagram of fourth embodiment of the invention power supply change-over device.
The reference numeral explanation
40,50,60,70 power supply change-over devices
400,500,600,700 first transformers
402,502,602,702 second transformers
404,504,708 bridge rectifiers
406,506,612,712 Ethernet terminals
408,508,614,714 Ethernet physical layer unit
410,510,616,618,716 electromagnetic interference suppress the unit
412,512,620,720 Zener diodes
604,704 the 3rd transformers
606,706 the 4th transformers
608 first bridge rectifiers
610 second bridge rectifiers
710 switch units
Vout voltage
Embodiment
Please refer to Fig. 4, Fig. 4 is the schematic diagram of first embodiment of the invention power supply change-over device 40.Power supply change-over device 40 is used for a receiving end equipment of a Power over Ethernet system, and it includes one first transformer 400, one second transformer 402 and a bridge rectifier 404.Power supply change-over device 40 can be changed the power supply of Power over Ethernet systems by an Ethernet terminal 406, and exports a voltage Vout to receiving end equipment.Simultaneously, power supply change-over device 40 can not influence the running of an Ethernet physical layer unit 408 of receiving end equipment.In Fig. 4, the specification of Ethernet terminal 406 meets the RJ-45 terminal, the Arabic numerals on it (1,2...8) expression pin position.400 cross-over connections of first transformer are in first pin and second pin of Ethernet terminal 406, and 402 cross-over connections of second transformer are in the 3rd pin and the 6th pin of Ethernet terminal 406.Bridge rectifier 404 preferably suppresses the center tap that unit 410 is coupled to first transformer 400 and second transformer 402 via an electromagnetic interference, be used for the power supply that the center tap of first transformer 400 and second transformer 402 is exported is carried out rectification, and pass through a Zener diode 412 output voltage V out to receiving end equipment.Electromagnetic interference suppresses unit 410 and is used for suppressing or eliminating electromagnetic interference, and it can be common mode choke coil (Common-Mode Choke), magnetic bead inductance (BeadInductor) or other assembly.Zener diode 412 act as a clamped assembly, be used for burning voltage Vout.
As shown in Figure 4, power supply change-over device 40 is applicable to that feeder ear equipment is by first and second pin and the 3rd of Ethernet terminal 406, the situation (as shown in Figure 2) of six pins power supply.In this case, no matter receiving end equipment is 10Mbs, 100Mbs or the ethernet device of 1000Mbs, power supply change-over device 40 all can receive feeder ear equipment by Ethernet terminal 406, and exports receiving end equipment to.
Please refer to Fig. 5, Fig. 5 is the schematic diagram of second embodiment of the invention power supply change-over device 50.Power supply change-over device 50 is used for a receiving end equipment of a Power over Ethernet system, and it includes one first transformer 500, one second transformer 502 and a bridge rectifier 504.Power supply change-over device 50 can be changed the power supply of Power over Ethernet systems by an Ethernet terminal 506, and exports a voltage Vout to receiving end equipment.Simultaneously, power supply change-over device 50 can not influence the running of an Ethernet physical layer unit 508 of receiving end equipment.In Fig. 5, the specification of Ethernet terminal 506 meets the RJ-45 terminal, the Arabic numerals on it (1,2...8) expression pin position.500 cross-over connections of first transformer are in the 4th pin and the 5th pin of Ethernet terminal 506, and 502 cross-over connections of second transformer are in the 7th pin and the 8th pin of Ethernet terminal 506.Bridge rectifier 504 preferably suppresses the center tap that unit 510 is coupled to first transformer 500 and second transformer 502 via an electromagnetic interference, be used for the power supply that the center tap of first transformer 500 and second transformer 502 is exported is carried out rectification, and pass through a Zener diode 512 output voltage V out to receiving end equipment.Electromagnetic interference suppresses unit 510 and is used for suppressing or eliminating electromagnetic interference, and it can be common mode choke coil (Common-Mode Choke), magnetic bead inductance (BeadInductor) or other assembly.Zener diode 512 act as a clamped assembly, be used for burning voltage Vout.
As shown in Figure 5, power supply change-over device 50 is applicable to that feeder ear equipment is by fourth, fifth pin and the 7th of Ethernet terminal 506, the situation (as shown in Figure 1) of eight pins power supply. in this case, no matter receiving end equipment is 10Mbs, 100Mbs or the ethernet device of 1000Mbs, power supply change-over device 50 all can receive feeder ear equipment by Ethernet terminal 506, and exports receiving end equipment to.
As from the foregoing, power supply change-over device 40 is applicable to feeder ear equipment by first and second pin and the 3rd of Ethernet terminal, the situation (as shown in Figure 2) of six pins power supply, and power supply change-over device 50 is applicable to that feeder ear equipment is by fourth, fifth pin and the 7th of Ethernet terminal, the situation (as shown in Figure 1) of eight pins power supply.In addition, no matter receiving end equipment is 10Mbs, 100Mbs or the ethernet device of 1000Mbs, power supply change-over device 40,50 all can receive feeder ear equipment by the Ethernet terminal, and exports receiving end equipment to.Certainly, those skilled in the art can be suitably in conjunction with power supply change-over device 40,50, to be applicable to the situation of Figure 1 and Figure 2 simultaneously.
Please refer to Fig. 6, Fig. 6 is the schematic diagram of third embodiment of the invention power supply change-over device 60.Power supply change-over device 60 is used for a receiving end equipment of a Power over Ethernet system, and it includes one first transformer 600, one second transformer 602, one the 3rd transformer 604, one the 4th transformer 606, one first bridge rectifier 608 and one second bridge rectifier 610.Power supply change-over device 60 can be changed the power supply of Power over Ethernet systems by an Ethernet terminal 612, and exports a voltage Vout to receiving end equipment.Simultaneously, power supply change-over device 60 can not influence the running of an Ethernet physical layer unit 614 of receiving end equipment.In Fig. 6, the specification of Ethernet terminal 612 meets the RJ-45 terminal, the Arabic numerals on it (1,2...8) expression pin position.600 cross-over connections of first transformer are in first pin and second pin of Ethernet terminal 612,602 cross-over connections of second transformer are in the 3rd pin and the 6th pin of Ethernet terminal 612,604 cross-over connections of the 3rd transformer are in the 4th pin and the 5th pin of Ethernet terminal 612, and 606 cross-over connections of the 4th transformer are in the 7th pin and the 8th pin of Ethernet terminal 612.First bridge rectifier 608 preferably suppresses the center tap that unit 616 is coupled to first transformer 600 and second transformer 602 via an electromagnetic interference, be used for the power supply that the center tap of first transformer 600 and second transformer 602 is exported is carried out rectification, and pass through a Zener diode 620 output voltage V out to receiving end equipment.Same, second bridge rectifier 610 suppresses the center tap that unit 618 is coupled to the 3rd transformer 604 and the 4th transformer 606 via an electromagnetic interference, be used for the power supply that the center tap of the 3rd transformer 604 and the 4th transformer 606 is exported is carried out rectification, and pass through Zener diode 620 output voltage V out to receiving end equipment.Electromagnetic interference suppresses unit 616,618 and is used for suppressing or eliminating electromagnetic interference, and it can be common mode choke coil (Common-Mode Choke), magnetic bead inductance (Bead Inductor) or other assembly.Zener diode 620 act as a clamped assembly, be used for burning voltage Vbut.
Therefore, power supply change-over device 60 passes through first and second pin and the 3rd of Ethernet terminal 612, the situation (as shown in Figure 2) of six pins power supply, the situation (as shown in Figure 1) of also powering applicable to fourth, fifth pin and the 7th, eight pins simultaneously applicable to feeder ear equipment.In addition, no matter receiving end equipment is 10Mbs, 100Mbs or the ethernet device of 1000Mbs, power supply change-over device 60 all can receive feeder ear equipment by Ethernet terminal 612, and exports receiving end equipment to.
Please refer to Fig. 7, Fig. 7 is the schematic diagram of fourth embodiment of the invention power supply change-over device 70. power supply change-over device 70 is used for a receiving end equipment of a Power over Ethernet system, it includes one first transformer 700, one second transformer 702, one the 3rd transformer 704, one the 4th transformer 706, one bridge rectifier 708 and one switches unit 710. power supply change-over devices 70 can be by the power supply of an Ethernet terminal 712 conversion Power over Ethernet systems, and export a voltage Vout to receiving end equipment. simultaneously, power supply change-over device 70 can not influence the running of an Ethernet physical layer unit 714 of receiving end equipment. in Fig. 7, the specification of Ethernet terminal 712 meets the RJ-45 terminal, Arabic numerals (1 on it, 2...8) expression pin position. 700 cross-over connections of first transformer are in first pin and second pin of Ethernet terminal 712,702 cross-over connections of second transformer are in the 3rd pin and the 6th pin of Ethernet terminal 712,704 cross-over connections of the 3rd transformer are in the 4th pin and the 5th pin of Ethernet terminal 712, and 706 cross-over connections of the 4th transformer are in the 7th pin and the 8th pin of Ethernet terminal 712. switch unit 710 is coupled to first transformer 700, second transformer 702, the center tap of the 3rd transformer 704 and the 4th transformer 706, being used for switching the voltage of the center tap of the voltage of center tap of output first transformer 700 and second transformer 702 or the 3rd transformer 704 and the 4th transformer 706. bridge rectifier 708 preferably suppresses the output that unit 716 is coupled to switch unit 710 via an electromagnetic interference, be used for the power supply that switch unit 710 is exported is carried out rectification, and by a Zener diode 720 output voltage V out to receiving end equipment. electromagnetic interference suppresses unit 716 and is used for suppressing or eliminating electromagnetic interference, and it can be common mode choke coil (Common-Mode Choke), magnetic bead inductance (Bead Inductor) or other assembly.Zener diode 720 act as a clamped assembly, be used for burning voltage Vout.
Therefore, power supply change-over device 70 passes through first and second pin and the 3rd of Ethernet terminal 712, the situation (as shown in Figure 2) of six pins power supply, the situation (as shown in Figure 1) of also powering applicable to fourth, fifth pin and the 7th, eight pins simultaneously applicable to feeder ear equipment.In addition, no matter receiving end equipment is 10Mbs, 100Mbs or the ethernet device of 1000Mbs, power supply change-over device 70 all can receive feeder ear equipment by Ethernet terminal 712, and exports receiving end equipment to.
By power supply change-over device of the present invention, no matter receiving end equipment is 10Mbs, 100Mbs or the ethernet device of 1000Mbs (as bluetooth access point, the network printer, network telephone, network camera, wireless network bridge, security system, monitoring system etc.), only need can be online to network and obtain power supply simultaneously, thereby save spent time and the expense of power supply of installing by a grid line.
Because the Ethernet equipment of 1000Mbs uses all twisted-pair feeder transmission data of standard five classes (Catalog 5) grid line, and the Ethernet equipment of 10Mbs and 100Mbs only uses two pairs of twisted-pair feeders (first and second pin and the 3rd, six pins) transmission data in standard five classes (Catalog 5) grid line, causes existing Power over Ethernet system can't satisfy the Ethernet equipment of 10Mbs, 100Mbs and 1000Mbs simultaneously.In the present invention,, all can provide receiving end equipment galvanic current, keep the normal operation of network on-line simultaneously by power supply change-over device of the present invention no matter receiving end equipment is 10Mbs, 100Mbs or the ethernet device of 1000Mbs.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.

Claims (21)

1. power supply change-over device that is used for a receiving end equipment of a Power over Ethernet system includes:
One first transformer, cross-over connection is in first pin and second pin of an Ethernet terminal;
One second transformer, cross-over connection is in the 3rd pin and the 6th pin of this Ethernet terminal;
One first bridge rectifier is coupled to the center tap of this first transformer and the center tap of this second transformer, is used for the power supply that the center tap of this first transformer and this second transformer is exported is carried out rectification, to supply power to this receiving end equipment;
One the 3rd transformer, cross-over connection is in the 4th pin and the 5th pin of this Ethernet terminal;
One the 4th transformer, cross-over connection is in the 7th pin and the 8th pin of this Ethernet terminal; And
One second bridge rectifier is coupled to the center tap of the 3rd transformer and the center tap of the 4th transformer, is used for the power supply that the center tap of the 3rd transformer and the 4th transformer is exported is carried out rectification, to supply power to this receiving end equipment.
2. power supply change-over device as claimed in claim 1, wherein this Ethernet terminal is a RJ-45 terminal.
3. power supply change-over device as claimed in claim 1, wherein this Ethernet terminal is located on this receiving end equipment.
4. power supply change-over device as claimed in claim 1, wherein this first bridge rectifier is coupled to the center tap of this first transformer and the center tap of this second transformer by electromagnetic interference inhibition unit.
5. power supply change-over device as claimed in claim 4, wherein this electromagnetic interference inhibition unit is a common mode choking-winding.
6. power supply change-over device as claimed in claim 4, wherein this electromagnetic interference inhibition unit is a magnetic bead inductance.
7. power supply change-over device as claimed in claim 1, wherein this second bridge rectifier is coupled to the center tap of the 3rd transformer and the center tap of the 4th transformer by electromagnetic interference inhibition unit.
8. power supply change-over device as claimed in claim 7, wherein this electromagnetic interference inhibition unit is a common mode choking-winding.
9. power supply change-over device as claimed in claim 7, wherein this electromagnetic interference inhibition unit is a magnetic bead inductance.
10. power supply change-over device as claimed in claim 1, it also comprises a clamped assembly, is coupled between the output and this receiving end equipment of this first bridge rectifier.
11. power supply change-over device as claimed in claim 10, wherein this clamped assembly is a Zener diode.
12. power supply change-over device as claimed in claim 1, it also comprises a clamped assembly, is coupled between the output and this receiving end equipment of this second bridge rectifier.
13. power supply change-over device as claimed in claim 12, wherein this clamped assembly is a Zener diode.
14. a power supply change-over device that is used for a receiving end equipment of a Power over Ethernet system includes:
One first transformer, cross-over connection is in first pin and second pin of an Ethernet terminal;
One second transformer, cross-over connection is in the 3rd pin and the 6th pin of this Ethernet terminal;
One the 3rd transformer, cross-over connection is in the 4th pin and the 5th pin of this Ethernet terminal;
One the 4th transformer, cross-over connection is in the 7th pin and the 8th pin of this Ethernet terminal;
One switches the unit, include the center tap that one first end is coupled to this first transformer, one second end is coupled to the center tap of this second transformer, one the 3rd end is coupled to the center tap of the 3rd transformer, one the 4th end is coupled to the center tap of the 4th transformer, one first output, and one second output switch this first end of output and the voltage of this second end or the voltage of the 3rd end and the 4th end with this first output of cause and this second output; And
One bridge rectifier is coupled to this first output and this second output of this switch unit, is used for the power supply that this first output and this second output are exported is carried out rectification, to supply power to this receiving end equipment.
15. power supply change-over device as claimed in claim 14, wherein this Ethernet terminal is a RJ-45 terminal.
16. power supply change-over device as claimed in claim 14, wherein this Ethernet terminal is located on this receiving end equipment.
17. power supply change-over device as claimed in claim 14, wherein this bridge rectifier suppresses this first output and this second output that the unit is coupled to this switch unit by an electromagnetic interference.
18. power supply change-over device as claimed in claim 17, wherein this electromagnetic interference inhibition unit is a common mode choking-winding.
19. power supply change-over device as claimed in claim 17, wherein this electromagnetic interference inhibition unit is a magnetic bead inductance.
20. power supply change-over device as claimed in claim 14, it also comprises a clamped assembly, is coupled between the output and this receiving end equipment of this bridge rectifier.
21. power supply change-over device as claimed in claim 20, wherein this clamped assembly is a Zener diode.
CN200610141678A 2006-10-09 2006-10-09 Power supply converter for an electro-receiving end equipment of an Ethernet power supply system Active CN101163018B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200610141678A CN101163018B (en) 2006-10-09 2006-10-09 Power supply converter for an electro-receiving end equipment of an Ethernet power supply system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200610141678A CN101163018B (en) 2006-10-09 2006-10-09 Power supply converter for an electro-receiving end equipment of an Ethernet power supply system

Publications (2)

Publication Number Publication Date
CN101163018A CN101163018A (en) 2008-04-16
CN101163018B true CN101163018B (en) 2010-05-12

Family

ID=39297856

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200610141678A Active CN101163018B (en) 2006-10-09 2006-10-09 Power supply converter for an electro-receiving end equipment of an Ethernet power supply system

Country Status (1)

Country Link
CN (1) CN101163018B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8387103B2 (en) * 2009-12-28 2013-02-26 Gemtek Technology Co., Ltd. Video server device for closed circuit television
CN104753685B (en) * 2013-12-30 2018-08-31 启碁科技股份有限公司 Power conversion system for Power over Ethernet system
TWI528742B (en) * 2014-01-13 2016-04-01 瑞昱半導體股份有限公司 Emi suppression device and method for network transmission
CN103986587B (en) * 2014-04-29 2018-10-12 上海斐讯数据通信技术有限公司 A kind of POE power supply systems
CN106160876B (en) * 2016-08-17 2019-06-21 深圳市海硕科技有限公司 A kind of optical network device and its power receiving circuit
CN110138189B (en) * 2018-02-02 2021-09-03 安雷科技股份有限公司 Protection circuit for Ethernet and power supply end equipment with protection circuit
CN109542200A (en) * 2019-01-21 2019-03-29 广东易达电子科技有限公司 The power supply system of terminal and terminal

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6218930B1 (en) * 1999-03-10 2001-04-17 Merlot Communications Apparatus and method for remotely powering access equipment over a 10/100 switched ethernet network
CN1407815A (en) * 2001-09-11 2003-04-02 友讯科技股份有限公司 Network switching apparatus with power supply to network communication facilities via dual twist wires
CN2687968Y (en) * 2004-03-10 2005-03-23 华为技术有限公司 Ethernet terminal device for realizing adaptive power supply
CN1604546A (en) * 2003-09-29 2005-04-06 浙江中控技术股份有限公司 Ethernet switch for implementing redundancy power supply and implementing method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6218930B1 (en) * 1999-03-10 2001-04-17 Merlot Communications Apparatus and method for remotely powering access equipment over a 10/100 switched ethernet network
CN1407815A (en) * 2001-09-11 2003-04-02 友讯科技股份有限公司 Network switching apparatus with power supply to network communication facilities via dual twist wires
CN1604546A (en) * 2003-09-29 2005-04-06 浙江中控技术股份有限公司 Ethernet switch for implementing redundancy power supply and implementing method thereof
CN2687968Y (en) * 2004-03-10 2005-03-23 华为技术有限公司 Ethernet terminal device for realizing adaptive power supply

Also Published As

Publication number Publication date
CN101163018A (en) 2008-04-16

Similar Documents

Publication Publication Date Title
US9189036B2 (en) Ethernet module
US7831844B2 (en) Integrated powered device connector in system for supplying power over communication link
US8050399B2 (en) Power transformation device of a powered device in a power over ethernet system
US7761719B2 (en) Ethernet module
CN101163018B (en) Power supply converter for an electro-receiving end equipment of an Ethernet power supply system
US20070288771A1 (en) Source Separator for Power over Ethernet Systems
US7053501B1 (en) Multi-pair aggregate power distribution
EP2660989B1 (en) A power over one-pair ethernet approach
CN101282275B (en) Telecommunication Ethernet system and repeater
US8044747B2 (en) Capacitor coupled Ethernet
EP2805214B1 (en) Device and method for powering ethernet midspan device and endspan device
US20060251179A1 (en) Ethernet bridge
CN200959605Y (en) Interface circuit of electric connector
CN101436883A (en) Electric power modem
CN102075331B (en) Ethernet power supply end equipment as well as system and method thereof for realizing power supply
WO2007140467A2 (en) Ethernet module
US20070110026A1 (en) Systems and methods for dual power and data over a single cable
US7872378B2 (en) Power management system
CN102404125A (en) Power supply method and system of Ethernet
CN104125076A (en) POE (Power Over Ethernet) multimedia terminal
CN102710425A (en) Ethernet power relay system, feeder device and access bridging device
CN2648674Y (en) Electric injector
CN109039659A (en) G.fast reverse power supply system, terminal device and local side apparatus
CN204539174U (en) A kind of simple and easy external power supply POE electric power system
CN204615842U (en) Mobile communication system POE electric supply installation

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant