CN108712267A - CATV photoreceivers communicate the power supply circuit construction that electrostatic resistance function is realized in integrated system with PON - Google Patents
CATV photoreceivers communicate the power supply circuit construction that electrostatic resistance function is realized in integrated system with PON Download PDFInfo
- Publication number
- CN108712267A CN108712267A CN201810942324.5A CN201810942324A CN108712267A CN 108712267 A CN108712267 A CN 108712267A CN 201810942324 A CN201810942324 A CN 201810942324A CN 108712267 A CN108712267 A CN 108712267A
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- catv
- photoreceivers
- power supply
- ground terminal
- supply circuit
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- 238000010276 construction Methods 0.000 title claims abstract description 24
- 239000011324 bead Substances 0.000 claims abstract description 36
- 230000004224 protection Effects 0.000 description 14
- 230000005611 electricity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000037081 physical activity Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The present invention relates to a kind of antistatic power supply circuit constructions communicating integrated system with PON for CATV receivers, it includes CATV photoreceivers, RTL chip systems to communicate integrated system, the CATV photoreceivers are connected with RTL chip systems, and power supply circuit construction includes power module.The ground terminal of the power module is connected with the ground terminal of the CATV photoreceivers, the feeder ear of the power module is that the RTL chip systems are powered, and the ground terminal of the power module 4 is connected by magnetic bead terminal connecting structure with the ground terminal of the RTL chip systems by magnetic bead terminal connecting structure.Using the communication integrated system of this kind of power supply circuit construction, so that ray machine port electrostatic energy when by electrostatic is led by the connection of the ground terminal of CATV photoreceivers and the ground terminal of power module on power supply, since the ground terminal of 12V power supplys and RTL chip systems uses magnetic bead every anti-, the electrostatic made is converted into heat consumption by magnetic bead and falls, the influence to avoid electrostatic to the ground terminal of RTL chip systems.
Description
Technical field
The present invention relates to ESD electrostatic protections fields more particularly to CATV photoreceivers to contact electrostatic to RTL chip systems
The influence of ground terminal, in particular to a kind of power supply circuit construction of electrostatic resistance function.
Background technology
In cold winter, due to dry weather, relative air humidity is very low, when physical activity, between skin and clothes
And rubs mutually between clothes and clothes, electrostatic will be generated.With household electrical appliance increase and winter people more wear chemical fibre
Clothes, electrostatic charge caused by household electrical appliance can be absorbed by the body and accumulate, and room interior walls and floor belong to exhausted more in addition
Edge body, is air-dried, therefore is easier by electrostatic interference, and it's a normal phenomenon, when user is using ray machine product
When, very strong electrostatic energy can be released in a flash in contact, if the system that ray machine does not do electrostatic protection, less serious case is in short-term
Influence system short trouble can seriously lead to system in case of system halt, restart, or even can cause component damage, cause irrecoverable event
Barrier.
General guard system using 0 ohm and high-voltage capacitance directly by ray machine with systematically link together, in this way
So that electrostatic energy can be transmitted to systematically by ray machine when by electrostatic by 0 Ohmic resistance, cause master chip by electrostatic
Influence, to influence the normal operation of system, however ray machine be connected to systematically using magnetic bead after due to magnetic bead characteristic,
With ensure that ray machine when low frequency with connection systematically, radiation effect will not be caused, the magnetic bead when suffering from high-frequency electrostatic energy
Resistance value increase, so that partial electrostatic energy is converted into heat, to reduce ray machine by when electrostatic to influence systematically.More
The good stability for strengthening system.
Invention content
The purpose of the present invention is overcoming the above-mentioned prior art, providing one kind can avoid ray machine from suffering from
When electrostatic to the influence of system, the connection type of taking into account ray machine and system, neither influence ray machine radiation and ray machine can be avoided quiet
Electricity communicates the CATV photoreceivers systematically influenced with PON the power supply circuit that electrostatic resistance function is realized in integrated system
Structure.
To achieve the goals above, CATV photoreceivers of the invention, which are communicated with PON in integrated system, realizes antistatic do
The power supply circuit construction for disturbing function has following constitute：
The CATV photoreceivers communicate the power supply circuit construction that electrostatic resistance function is realized in integrated system with PON, lead to
Believe that integrated system includes CATV photoreceivers, RTL chip systems, the CATV photoreceivers are connected with RTL chip systems,
Power supply circuit construction includes power module, is mainly characterized by, the ground terminal of the power module and the CATV light-receivings
The ground terminal of machine is connected, and the feeder ear of the power module is the RTL chip systems by magnetic bead terminal connecting structure
Power supply, and the ground terminal of the power module is connected by magnetic bead terminal connecting structure with the ground terminal of the RTL chip systems.
Preferably, the power supply circuit construction further includes voltage changing module, the voltage changing module is connected to the power supply
Between module and the CATV photoreceivers.
Preferably, the power module feeder ear and ground terminal respectively by magnetic bead terminal connecting structure with it is described
The corresponding terminal of voltage changing module is connected.
Preferably, the CATV photoreceivers coupled with the mutual optical signal of RTL chip systems by optocoupler 3 and
Circuit is isolated.
Preferably, the ground terminal of the CATV photoreceivers is the shell of the CATV photoreceivers.
Preferably, the magnetic bead terminal connecting structure, which includes magnetic bead and external limit, contacts conductive member, the magnetic
Pearl is embedded in the external limit contact conductive member, and is connected for electrical contact.
Preferably, the voltage of the feeder ear of the power module is 12V.
Preferably, the output voltage of the voltage changing module is 5V.
Preferably, the width of connecting line is not less than between the ground terminal of CATV photoreceivers and the ground terminal of power module
20 millimeters (mil).
The CATV photoreceivers for using the invention communicate the power supply that electrostatic resistance function is realized in integrated system with PON
Circuit structure consequently facilitating electrical contact is connected, and is avoided due to wherein limiting in the magnetic bead portion of being placed in contact conductive member
RTL chip systems are influenced by CATV photoreceivers；Voltage changing module realizes corresponding protection to avoid electrostatic influence to being
The normal work of system；Isolation is carried out by magnetic bead and realizes protection, makes ray machine port that can not be interfered by magnetic bead when by electrostatic
To electrostatic systematically, is avoided to influence systematically, to achieve the purpose that protection system, make system avoid by from
The interference of ray machine port electrostatic energy；Ray machine with systematically connect, avoid generate radiation problem, electrostatic can be weakened and pass through ray machine
To injuring caused by systematically.The present invention can disposably solve the interference problem that all electrostatic belts come, and be a kind of more practical
Novel protective means, comprehensive protection has been carried out to system.
Description of the drawings
Fig. 1 is that the CATV photoreceivers of the present invention communicate the power supply that electrostatic resistance function is realized in integrated system with PON
The frame of circuit structure.
Reference sign：
1 CATV photoreceivers
2 RTL chip systems
3 optocouplers
4 power modules
5 voltage changing modules
6 magnetic bead terminal connecting structures
Specific implementation mode
Before being described in detail according to an embodiment of the invention, it should be noted that, hereinafter, first and second etc
Relational terms be used merely to distinguish an entity or action and another entity or action, and not necessarily require or imply and is this
Any actual this relationship or sequence between entity or action.The terms "include", "comprise" or any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only these
Element, but also include other elements that are not explicitly listed is either this process, method, article or equipment institute are intrinsic
Element.
In order to more clearly describe the technology contents of the present invention, carried out with reference to specific embodiment further
Description.
The CATV photoreceivers of the present invention communicate the power supply circuit knot that electrostatic resistance function is realized in integrated system with PON
In the technical solution of structure, the present invention is a kind of systematic electrostatic protection, is related to the exposed port contact electrostatic of ray machine to system institute
The influence of generation belongs to ESD electrostatic protection technical fields.
In specific embodiment of the invention below, if Fig. 1,12V refer to the voltage of the feeder ear of power module 4,5V refers to change
The output voltage of die block 5 refers to ray machine the ground terminal of CATV photoreceivers 1, is also the shell of the CATV photoreceivers 1.System
Ground refers to the ground terminal of RTL chip systems 2, and power ground refers to the ground terminal of power module 4, positive and negative two lines drawn by 12V power supplys,
The referred to as 12V of middle negative terminal, V_TX refers to that the transmitting terminal of RTL chip systems 2, U_RX refer to the reception of RTL chip systems 2
End.
The CATV photoreceivers communicate the power supply circuit construction that electrostatic resistance function is realized in integrated system with PON, lead to
Believe that integrated system includes CATV photoreceivers 1, RTL chip systems 2,2 phase of CATV photoreceivers 1 and RTL chip systems
Connection, power supply circuit construction includes power module 4, and the ground terminal of power module 4 is connected with the ground terminal of CATV photoreceivers 1, electricity
The feeder ear of source module 4 is powered by magnetic bead terminal connecting structure 6 for RTL chip systems 2, and the ground terminal of the power module 4 is logical
Magnetic bead terminal connecting structure 6 is crossed with the ground terminal of RTL chip systems 2 to be connected.
Power supply circuit construction further includes voltage changing module 5, voltage changing module 5 be connected to power module 4 and CATV photoreceivers 1 it
Between, the feeder ear and ground terminal of power module 4 distinguish the corresponding terminal phase by magnetic bead terminal connecting structure 6 and voltage changing module 5
Connection.
CATV photoreceivers 1 are coupled with 2 mutual optical signal of RTL chip systems by optocoupler 3 and circuit is isolated, and avoid RTL
Chip system 2 is influenced by CATV photoreceivers 1.Magnetic bead terminal connecting structure 6 includes magnetic bead and external limit contact conducting
Component, magnetic bead is embedded in the external limit contact conductive member, and is connected for electrical contact.
When light electrostatic imported into the ground terminal of CATV photoreceivers 1, due to ground terminal and the power module 4 of CATV photoreceivers 1
Ground terminal between be connected directly, the ground terminals of RTL chip systems 2 carries out isolating and protecting with power supply by magnetic bead, and design in this way makes
Ray machine port electrostatic energy when by electrostatic is led by the connection of the ground terminal and the ground terminal of power module 4 of CATV photoreceivers 1
Onto power supply, when ground terminal of the electrostatic to CATV photoreceivers 1, the ground terminal of CATV photoreceivers 1 and the ground terminal meeting of power module 4
Portion of energy is passed on power supply.
Power output end, CATV photoreceivers 1 ground terminal and system master chip between, voltage changing module 5 realizes corresponding anti-
The normal work to avoid electrostatic influence to system is protected, carrying out isolation by magnetic bead realizes protection, and is connected to power module 4
Port makes ray machine port that the energy part of electrostatic are converted into thermal energy by magnetic bead when by electrostatic, can not be interfered by magnetic bead
To the ground terminal of RTL chip systems 2, nubbin energy is then led in the ground terminal of 12V power modules 4 by circuit, to avoid
Influence of the electrostatic to the ground terminal of RTL chip systems 2 makes system avoid by from light to achieve the purpose that protection system
The interference of generator terminal mouth electrostatic energy.The ground terminal of CATV photoreceivers 1 is connect with the ground terminal of RTL chip systems 2, avoids generating radiation
Problem can realize that the ground terminal of CATV photoreceivers 1 is connected with the ground terminal of RTL chip systems 2 by magnetic bead connection, and can weaken quiet
Electricity is injured by ray machine caused by the ground terminal of RTL chip systems 2.
In the specific implementation mode of the present invention, in order to reach better antistatic interference effect, the CATV light connects
The width of connecting line is usually not less than 20 millimeters between the ground terminal and the ground terminal of power module 4 of receipts machine 1.Meanwhile it is 12V straight
It is connected to optical engine case in succession, the independent drawings of 12V are converted to 5V and are used to ray machine all the way, and the ground terminal of RTL chip systems 2 uses magnetic with 12V
Pearl is isolated, and the 12V being isolated gives RTL chip systems 2 to use, RF by directly leading 12V power supply adaptors when electrostatic, decrease pair
The influence of system.
It uses above-mentioned CATV photoreceivers and communicates the power supply electricity for realizing electrostatic resistance function in integrated system with PON
Line structure consequently facilitating electrical contact is connected, and is avoided due to wherein limiting in the magnetic bead portion of being placed in contact conductive member
RTL chip systems 2 are influenced by CATV photoreceivers 1；Voltage changing module 5 realizes corresponding protection to avoid electrostatic influence to being
The normal work of system；Isolation is carried out by magnetic bead and realizes protection, makes ray machine port that can not be interfered by magnetic bead when by electrostatic
To the ground terminal of RTL chip systems 2, influence of the electrostatic to the ground terminal of RTL chip systems 2 is avoided, to reach protection system
Purpose makes system avoid by the interference from ray machine port electrostatic energy；The ground terminal of CATV photoreceivers 1 and RTL chips
The ground terminal of system 2 connects, and avoids generating radiation problem, can weaken ground of the electrostatic by CATV photoreceivers to RTL chip systems 2
Injury caused by end.The present invention can disposably solve the interference problem that all electrostatic belts come, and be a kind of more practical novel
Preventive means has carried out system comprehensive protection.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that can still make
Various modifications and alterations are without departing from the spirit and scope of the invention.Therefore, the description and the appended drawings should be considered as illustrative
And not restrictive.
Claims (9)
1. a kind of CATV photoreceivers communicate the power supply circuit construction for realizing electrostatic resistance function in integrated system, institute with PON
The communication integrated system stated includes CATV photoreceivers, RTL chip systems, the CATV photoreceivers and RTL chip systems
Be connected, the power supply circuit construction includes power module, which is characterized in that the ground terminal of the power module with it is described
The ground terminal of CATV photoreceivers is connected, and the feeder ear of the power module is described by magnetic bead terminal connecting structure
RTL chip systems are powered, and the ground terminal of the power module passes through the ground of magnetic bead terminal connecting structure and the RTL chip systems
End is connected.
2. CATV photoreceivers according to claim 1 are communicated with PON realizes electrostatic resistance function in integrated system
Power supply circuit construction, which is characterized in that the power supply circuit construction further includes voltage changing module, and the voltage changing module is connected to institute
Between the power module and the CATV photoreceivers stated.
3. CATV photoreceivers according to claim 2 are communicated with PON realizes electrostatic resistance function in integrated system
Power supply circuit construction, which is characterized in that the feeder ear of the power module connects knot by magnetic bead terminal respectively with ground terminal
Structure is connected with the corresponding terminal of the voltage changing module.
4. CATV photoreceivers according to claim 1 are communicated with PON realizes electrostatic resistance function in integrated system
Power supply circuit construction, which is characterized in that the CATV photoreceivers pass through optocoupler 3 and the mutual light of RTL chip systems
Signal couples and circuit is isolated.
5. CATV photoreceivers according to claim 1 are communicated with PON realizes electrostatic resistance function in integrated system
Power supply circuit construction, which is characterized in that the ground terminal of the CATV photoreceivers is the shell of the CATV photoreceivers.
6. CATV photoreceivers according to any one of claim 1 to 5 communicated with PON in integrated system realize it is antistatic
The power supply circuit construction of interference function, which is characterized in that the magnetic bead terminal connecting structure includes that magnetic bead and external limit connect
Conductive member is touched, the magnetic bead is embedded in the external limit contact conductive member, and is connected for electrical contact.
7. CATV photoreceivers according to any one of claim 1 to 5 communicated with PON in integrated system realize it is antistatic
The power supply circuit construction of interference function, which is characterized in that the voltage of the feeder ear of the power module is 12V.
8. CATV photoreceivers according to any one of claim 1 to 5 communicated with PON in integrated system realize it is antistatic
The power supply circuit construction of interference function, which is characterized in that the output voltage of the voltage changing module is 5V.
9. CATV photoreceivers according to claim 1 are communicated with PON realizes electrostatic resistance function in integrated system
Power supply circuit construction, which is characterized in that connecting line between the ground terminal of CATV photoreceivers and the ground terminal of power module
Width is not less than 20 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810942324.5A CN108712267A (en) | 2018-08-17 | 2018-08-17 | CATV photoreceivers communicate the power supply circuit construction that electrostatic resistance function is realized in integrated system with PON |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810942324.5A CN108712267A (en) | 2018-08-17 | 2018-08-17 | CATV photoreceivers communicate the power supply circuit construction that electrostatic resistance function is realized in integrated system with PON |
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| Publication Number | Publication Date |
|---|---|
| CN108712267A true CN108712267A (en) | 2018-10-26 |
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|---|---|---|---|
| CN201810942324.5A Pending CN108712267A (en) | 2018-08-17 | 2018-08-17 | CATV photoreceivers communicate the power supply circuit construction that electrostatic resistance function is realized in integrated system with PON |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111629163A (en) * | 2020-06-29 | 2020-09-04 | 平湖新纳通信技术股份有限公司 | Coaxial line power supply circuit of domestic light receiver of cable television and power supply method thereof |
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Effective date of registration: 20231123 Address after: 215412 No.89 Jiangnan Road, Ludu Town, Taicang City, Suzhou City, Jiangsu Province Applicant after: TAICANG T&W ELECTRONICS Co.,Ltd. Address before: 200235 7th floor, Yuanzhong scientific research building, 1905 Hongmei Road, Xuhui District, Shanghai Applicant before: SHANGHAI GONGJIN COMMUNICATIONS TECHNOLOGY Co.,Ltd. |