CN106911307A - Ethernet transmits eoc signal frequency mixer - Google Patents
Ethernet transmits eoc signal frequency mixer Download PDFInfo
- Publication number
- CN106911307A CN106911307A CN201710097035.5A CN201710097035A CN106911307A CN 106911307 A CN106911307 A CN 106911307A CN 201710097035 A CN201710097035 A CN 201710097035A CN 106911307 A CN106911307 A CN 106911307A
- Authority
- CN
- China
- Prior art keywords
- eoc signal
- signal blender
- eoc
- blender
- switch
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/16—Multiple-frequency-changing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/025—Disconnection after limiting, e.g. when limiting is not sufficient or for facilitating disconnection
-
- 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
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
This application provides Ethernet transmission eoc signal frequency mixer.In the application, lightning-protection module is increased by eoc signal blender, the probability that eoc signal blender is subjected to broken by lightning can be reduced, improve the reliability of eoc signal blender.
Description
Technical field
The application is related to signalling technique, more particularly to Ethernet transmission (EOC：Ethernet Over Cable) signal mix
Frequency device.
Background technology
In eoc signal blender, coaxial cables most is suspended on outdoor, is subject to thunderbolt, so reducing eoc signal
Infringement when frequency mixer is struck by lightning is extremely important.Also, there is the alternating current (AC of 60 volts (V) in coaxial cable：
Alternating Curren), for being powered to the broadcasting and TV equipment such as signal amplifier, eoc signal frequency mixer must be supported
By 60V alternating currents (abbreviation AC60), original coaxial network is not just interfered with.
The content of the invention
This application provides Ethernet transmission eoc signal frequency mixer, broken by lightning is subjected to reduce eoc signal blender
Probability.
The technical scheme that the application is provided includes：
One kind transmission eoc signal blender, comprising the signal mixing for being connected to shaft cable in the eoc signal blender
Circuit, the eoc signal blender also includes：
Lightning-protection module, is connected to the coaxial cable, comprising lightning protection component and piezo-resistance；
The lightning protection component, energy of being released is produced for reducing the eoc signal blender by thunderbolt；
The piezo-resistance, the leakage current moment produced during for preventing the eoc signal blender to be struck by lightning increases
Greatly.
As can be seen from the above technical solutions, in the application, lightning-protection module is increased by eoc signal blender, can
The probability that eoc signal blender is subjected to broken by lightning is reduced, the reliability of eoc signal blender is improved, eoc signal is realized and is mixed
Clutch supports the purpose of lightning protection.
Brief description of the drawings
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows the implementation for meeting the disclosure
Example, and it is used to explain the principle of the disclosure together with specification.
Fig. 1 is the structure chart of signal mixed circuit；
The eoc signal mixer structure schematic diagram that Fig. 2 is provided for the application；
The eoc signal blender first embodiment structural representation that Fig. 3 is provided for the application；
The eoc signal blender second embodiment structural representation that Fig. 4 is provided for the application；
The eoc signal blender 3rd embodiment structural representation that Fig. 5 is provided for the application；
The eoc signal blender fourth embodiment structural representation that Fig. 6 is provided for the application；
The example structure schematic diagram of eoc signal blender the 5th that Fig. 7 is provided for the application；
The eoc signal blender sixth embodiment structural representation that Fig. 8 is provided for the application.
Specific embodiment
In order that the purpose, technical scheme and advantage of the application are clearer, below in conjunction with the accompanying drawings with specific embodiment pair
The application is described in detail.
Comprising the signal mixed circuit for being connected to shaft cable in eoc signal blender, it is used to realize signal mixing work(
Energy.Signal mixed circuit includes a high-pass filter and a low pass filter, and high-pass filter and low pass filter connect
It is connected to coaxial cable.Fig. 1 shows the structure of signal mixed circuit.
In order to improve the reliability of eoc signal blender, the application increased lightning-protection module in eoc signal blender,
To reduce the probability that eoc signal blender is subjected to broken by lightning.
In this application, lightning-protection module, is connected to above-mentioned coaxial cable.Wherein in an implementation method, lightning protection mould
Block includes lightning protection component (being designated as T1) and piezo-resistance (being designated as RV1).
Lightning protection component T1, energy of being released is produced for reducing the eoc signal blender by thunderbolt.
Piezo-resistance RV1, the leakage current moment produced during for preventing the eoc signal blender to be struck by lightning increases
Greatly.
Voltage when eoc signal blender is struck by lightning is acted on when on piezo-resistance RV1, based on piezo-resistance RV1
Nonlinear wind vibration, the resistance of piezo-resistance RV1 can taper into, it is therefore prevented that the moment of leakage current becomes big so that EOC
Energy diminishes after signal mixer is struck by lightning, and prevents eoc signal blender and is damaged because of moment too strong energy, subtracts significantly
Few eoc signal blender is subjected to the probability of broken by lightning, improves the reliability of eoc signal blender.
In this application, lightning protection component T1 and piezo-resistance RV1 is connected, but both residing particular location orders are not limited
Fixed, Fig. 2 is mixed with one end connecting coaxial cable of lightning protection component T1, other end connection piezo-resistance RV1 to be illustrated eoc signal
The structure of clutch.
In this application, when eoc signal blender is subjected to strong thunderbolt, the impedance of piezo-resistance RV1 as described above becomes
It is small to limit the increase of leakage current moment, leakage current is slowly increased, and for the increase of leakage current, if do not controlled
System can form short circuit, and for such case, used as an implementation method, lightning-protection module in this application further increases guarantor
Dangerous silk F1.
Fuse F1 is used for molten when the eoc signal blender is subjected to the leakage current of thunderbolt generation more than given threshold
It is disconnected, short circuit is prevented, protect eoc signal blender.That is, in this application, fuse F1 is in leakage current more than setting
When determining threshold value, blow in advance, do not result in short circuit and damage eoc signal blender, also do not interfere with AC60 and power.
In this application, fuse F1 connects with lightning protection component T1 and piezo-resistance RV1 three, but specific residing for three
Sequence of positions is not limited.Fig. 3 exemplified fuse F1, lightning protection component T1 and piezo-resistance RV1 three series connection are wherein
A kind of connected mode.
Used as one embodiment of the application, in this application, lightning protection component T1 is the gas discharge for meeting lightning protection parameter
Pipe (being designated as D1).Here, the lightning protection parameter is preferably：Impact resistance electric current is more than setting electric current value.Wherein, setting electric current value can
AC60 electric currents are not interfered with such as according to actual conditions and are determined.
In this application, as one embodiment, eoc signal blender also includes overcurrent module.
Overcurrent module, for preventing eoc signal and TV (TV) signal, it is allowed to which specified current flow passes through.As a reality
Example is applied, specified current flow here is AC60 electric currents.By overcurrent module, the eoc signal in eoc signal blender can be avoided
AC60 electric currents are disturbed with TV signal.
In this application, as an implementation method, one end of overcurrent module is connected to the input of eoc signal blender
End, the other end is connected to the output end of eoc signal blender, specific as shown in Figure 4.
According to different application scenarios, the specific implementation of the overcurrent module of citing description below：
Mode 1：
In the manner 1, overcurrent module includes a LC low pass filter.Fig. 5 shows that the eoc signal under mode 1 is mixed
Clutch.As shown in figure 5, the LC low pass filters include high-voltage capacitance (CY1_1 shown in Fig. 5) and the inductance (LY1_ shown in Fig. 5
1)。
In one embodiment of the application, the specification of inductance LY1_1 meets the enamel-covered wire of setting numerical value from diameter,
Setting numerical value is used to allow the electric current of setting electric current value such as 10A to pass through.
In one embodiment of the application, the inductance value of inductance LY1_1 is more than setting inductance value such as 10 microhenrys (H),
Setting inductance value meets the condition that LC low pass filters are formed for inductance LY1_1 and high-voltage capacitance CY1_1.
So far, the description of mode 1 is completed.
Mode 2：
In the manner 2, overcurrent module is opened comprising a LC low pass filter and one for circuit to be opening and closing of
Close.This is used for the opening and closing of switch of circuit and sets to the input of eoc signal blender, or, set mixed to eoc signal
The output end of clutch.Fig. 6 is set to eoc signal blender for the opening and closing of switch of circuit (SW1_2 shown in Fig. 6)
Input as a example by.As shown in fig. 6, the LC low pass filters that overcurrent module is included include the high-voltage capacitance (CY1_ shown in Fig. 6
2) with inductance (LY1_2 shown in Fig. 6).
In one embodiment of the application, the specification of inductance LY1_2 meets the enamel-covered wire of setting numerical value from diameter,
Setting numerical value is used to allow the electric current of setting electric current value such as 10A to pass through.
In one embodiment of the application, the inductance value of inductance LY1_2 is more than setting inductance value such as 10 microhenrys (H),
The setting inductance value meets the condition that LC low pass filters are formed for inductance LY1_2 and high-voltage capacitance CY1_2.
So far, the description of mode 2 is completed.
Mode 3：
In the manner 3, overcurrent module is opened comprising a LC low pass filter and two for circuit to be opening and closing of
Close.Two be used in the opening and closing of switch of circuit are set to the input of eoc signal blender, another setting
To the output end of the input of eoc signal blender, Fig. 7 shows and set for the opening and closing of switch SW1_3_1 of circuit
To the input of eoc signal blender, another sets mixed to eoc signal for the opening and closing of switch SW1_3_2 of circuit
The output end of clutch.As shown in fig. 7, the LC low pass filters that overcurrent module is included include the high-voltage capacitance (CY1_ shown in Fig. 7
3) with inductance (LY1_3 shown in Fig. 7).
In one embodiment of the application, the specification of inductance LY1_3 meets the enamel-covered wire of setting numerical value from diameter,
Setting numerical value is used to allow the electric current of setting electric current value such as 10A to pass through.
In one embodiment of the application, the inductance value of inductance LY1_3 is more than setting inductance value such as 10 microhenrys (H),
The setting inductance value meets the condition that LC low pass filters are formed for inductance LY1_3 and high-voltage capacitance CY1_3.
So far, the description of mode 3 is completed.
Mode 4：
Under the manner 4, overcurrent module is opened comprising two-stage LC low pass filters and one for circuit to be opening and closing of
Close.Wherein, this be used for circuit it is opening and closing of switch be connected between two-stage LC low pass filters.As shown in figure 8, this is used for
The opening and closing of switch of circuit is designated as SW1_4.
In fig. 8, the wherein one-level LC low pass filters in the two-stage LC low pass filters that overcurrent module is included are included
Inductance LY1_4_1 and high-voltage capacitance CY1_4_1 shown in Fig. 8, another grade of LC low pass filter include the inductance LY1_ shown in Fig. 8
4_2 and high-voltage capacitance CY1_4_2.
In fig. 8, one end ground connection of high-voltage capacitance CY1_4_1, the other end is connected to one end and the switch of inductance LY1_4_1
Between SW1_4, the other end of inductance LY1_4_1 connects the input of eoc signal blender.
In fig. 8, one end ground connection of high-voltage capacitance CY1_4_2, the other end is connected to one end and the switch of inductance LY1_4_2
Between SW1_4, the other end of inductance LY_4_2 connects the output end of eoc signal blender.
In this application, wherein in one embodiment, inductance LY1_4_1, the specification of inductance LY1_4_2 select diameter
Meet the enamel-covered wire of setting numerical value, setting numerical value is used to allow the electric current of setting electric current value such as 10A to pass through.
In this application, wherein in one embodiment, the inductance value of inductance LY1_4_1 is more than the first setting inductance value ratio
Such as 10 microhenrys (H), first sets inductance value meets for inductance LY1_4_1 and high-voltage capacitance CY1_4_1 formation LC LPFs
The condition of device.
The inductance value of inductance LY1_4_2 meets more than the second setting inductance value such as 10 microhenrys (H), the second setting inductance value
The condition of LC low pass filters is formed for inductance LY1_4_2 and high-voltage capacitance CY1_4_2.
So far, the description of mode 4 is completed.
Be can be seen that in this application by being described above, lightning-protection module is increased by eoc signal blender, can
The probability that eoc signal blender is subjected to broken by lightning is reduced, the reliability of eoc signal blender is improved；By mixed in eoc signal
Increase overcurrent module in clutch, the interference of the excessively electric circuit of specified current flow such as AC60 electric currents can be avoided, improve signal mixing
Stability.
The preferred embodiment of the application is the foregoing is only, is not used to limit the application, all essences in the application
Within god and principle, any modification, equivalent substitution and improvements done etc. should be included within the scope of the application protection.
Claims (10)
1. a kind of Ethernet transmission eoc signal blender, includes the signal for being connected to shaft cable in the eoc signal blender
Hybrid circuit, it is characterised in that the eoc signal blender also includes：
Lightning-protection module, is connected to the coaxial cable, comprising lightning protection component and piezo-resistance；
The lightning protection component, energy of being released is produced for reducing the eoc signal blender by thunderbolt；
The piezo-resistance, the leakage current moment produced during for preventing the eoc signal blender to be struck by lightning increases.
2. eoc signal blender according to claim 1, it is characterised in that the lightning-protection module is further included：Insurance
Silk；
The fuse is used for molten when the eoc signal blender is subjected to the leakage current of thunderbolt generation more than given threshold
It is disconnected.
3. eoc signal blender according to claim 2, it is characterised in that the fuse, the lightning protection component, with
And the piezo-resistance three series connection.
4. eoc signal blender according to claim 1 and 2, it is characterised in that the lightning protection component is to meet lightning protection ginseng
Several gas-discharge tubes.
5. eoc signal blender according to claim 3, it is characterised in that the lightning protection parameter is：Impact resistance electric current is big
In setting electric current value.
6. eoc signal blender according to claim 1, it is characterised in that the eoc signal blender also includes：Cross
Current module,
The overcurrent module, for preventing eoc signal and TV signal, it is allowed to which specified current flow passes through.
7. eoc signal blender according to claim 6, it is characterised in that the overcurrent module is low comprising a LC
Bandpass filter, a LC low pass filters include the first high-voltage capacitance and the first inductance.
8. eoc signal blender according to claim 7, it is characterised in that the overcurrent module is further comprising the
One switch；
The first switch is set to the input of eoc signal blender, or, set to the output end of eoc signal blender.
9. eoc signal blender according to claim 7, it is characterised in that the overcurrent module is further comprising the
Two switches and the 3rd switch；
A switch in the second switch and the 3rd switch is set to the input of eoc signal blender, another switch
Set to the output end of eoc signal blender.
10. eoc signal blender according to claim 7, it is characterised in that the overcurrent module is further comprising the
Two LC low pass filters and the 4th switch；The 2nd LC low pass filters include the second inductance and the second high-voltage capacitance；
4th switch is connected between a LC low pass filters and the 2nd LC low pass filters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710097035.5A CN106911307A (en) | 2017-02-22 | 2017-02-22 | Ethernet transmits eoc signal frequency mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710097035.5A CN106911307A (en) | 2017-02-22 | 2017-02-22 | Ethernet transmits eoc signal frequency mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106911307A true CN106911307A (en) | 2017-06-30 |
Family
ID=59207947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710097035.5A Pending CN106911307A (en) | 2017-02-22 | 2017-02-22 | Ethernet transmits eoc signal frequency mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106911307A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3487023A1 (en) * | 2017-11-17 | 2019-05-22 | Pegatron Corporation | Filter circuit |
| EP4033623A4 (en) * | 2019-09-17 | 2022-12-21 | Qingdao Haier Air-Conditioning Electronic Co., Ltd | Surge absorption circuit for single-phase air conditioning system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832969A (en) * | 2012-09-04 | 2012-12-19 | 深圳市双赢伟业科技股份有限公司 | EOC (Ethernet over Coax) mixer |
| CN203151086U (en) * | 2013-02-05 | 2013-08-21 | 中兴通讯股份有限公司 | Lightning-protection protective circuit |
| CN103384064A (en) * | 2013-07-16 | 2013-11-06 | 深圳远征技术有限公司 | Distribution system concentrated ground protection and lightning protection device and system |
| CN103795054A (en) * | 2013-08-20 | 2014-05-14 | 深圳市金霆科技有限公司 | Lightning protection system and method of direct-current remote supply power equipment |
| CN104253426A (en) * | 2014-09-03 | 2014-12-31 | 烽火通信科技股份有限公司 | Lightning protection circuit and lightning protection method for direct-current power supply port of communication equipment |
| CN205544252U (en) * | 2016-02-17 | 2016-08-31 | 刘俊杰 | Lightning protection circuit at EOC terminal |
-
2017
- 2017-02-22 CN CN201710097035.5A patent/CN106911307A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832969A (en) * | 2012-09-04 | 2012-12-19 | 深圳市双赢伟业科技股份有限公司 | EOC (Ethernet over Coax) mixer |
| CN203151086U (en) * | 2013-02-05 | 2013-08-21 | 中兴通讯股份有限公司 | Lightning-protection protective circuit |
| CN103384064A (en) * | 2013-07-16 | 2013-11-06 | 深圳远征技术有限公司 | Distribution system concentrated ground protection and lightning protection device and system |
| CN103795054A (en) * | 2013-08-20 | 2014-05-14 | 深圳市金霆科技有限公司 | Lightning protection system and method of direct-current remote supply power equipment |
| CN104253426A (en) * | 2014-09-03 | 2014-12-31 | 烽火通信科技股份有限公司 | Lightning protection circuit and lightning protection method for direct-current power supply port of communication equipment |
| CN205544252U (en) * | 2016-02-17 | 2016-08-31 | 刘俊杰 | Lightning protection circuit at EOC terminal |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3487023A1 (en) * | 2017-11-17 | 2019-05-22 | Pegatron Corporation | Filter circuit |
| CN109802653A (en) * | 2017-11-17 | 2019-05-24 | 和硕联合科技股份有限公司 | Filter circuit |
| EP4033623A4 (en) * | 2019-09-17 | 2022-12-21 | Qingdao Haier Air-Conditioning Electronic Co., Ltd | Surge absorption circuit for single-phase air conditioning system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20080224536A1 (en) | Transmission Line Structure for Power Line Communication and Power Line Switch Used Therein | |
| PT1050975E (en) | Communications apparatus for use with an electricity network | |
| JP2008523717A (en) | A data chain inductive coupler device for data communication. | |
| CN204046638U (en) | For the CAN communication circuit of welding equipment | |
| CN106464297A (en) | A surge protector for a transceiver | |
| CN106911307A (en) | Ethernet transmits eoc signal frequency mixer | |
| US7148788B2 (en) | Method for transmitting high-frequency signals to low-frequency networks and corresponding system | |
| CN101202150B (en) | EMC filter inductance | |
| JP5508104B2 (en) | Surge test circuit | |
| CN203574361U (en) | Antenna feeder lightning protection device of RF radio frequency device for LED control | |
| EP3035475A1 (en) | Surge protection device and method | |
| CN104608638A (en) | High-voltage isolation switch control circuit | |
| CN109217279A (en) | Surging protection circuit and method for surging protection circuit | |
| CN105790797A (en) | Integrated capacitive coupler for medium voltage power carrier communication | |
| CN105470936A (en) | Network transformer lightning protection circuit for suppressing common mode surge | |
| CN111614116B (en) | Grounding method and device of flexible direct current system | |
| US20060176637A1 (en) | High-frequency bypass unit | |
| US1303383A (en) | Lines | |
| CN108242802A (en) | Interface protection circuit and equipment interface | |
| CN105680432A (en) | Electrical facility and apparatus for protecting electrical facility | |
| KR102474656B1 (en) | Network device | |
| WO2006012681A1 (en) | Method and device for power line head-end data transmission | |
| CN204967261U (en) | Parallelly connected damping device | |
| CN209313430U (en) | Electronic equipment and its protection circuit | |
| CN219477849U (en) | Separated network transformer circuit and network interface circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170630 |