CN106849689A - A kind of network transformer circuit - Google Patents
A kind of network transformer circuit Download PDFInfo
- Publication number
- CN106849689A CN106849689A CN201710027206.7A CN201710027206A CN106849689A CN 106849689 A CN106849689 A CN 106849689A CN 201710027206 A CN201710027206 A CN 201710027206A CN 106849689 A CN106849689 A CN 106849689A
- Authority
- CN
- China
- Prior art keywords
- circuit
- network
- network transformer
- common mode
- output line
- 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
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000010168 coupling process Methods 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 4
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000001914 filtration Methods 0.000 abstract description 4
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
- H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
- H02M5/10—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers
- H02M5/12—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers for conversion of voltage or current amplitude only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
- H02M1/123—Suppression of common mode voltage or current
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The present invention relates to a kind of network transformer circuit; including a sub-circuit; the sub-circuit includes the termination power, filter circuit and the protection circuit that are sequentially connected; termination power is connected with network difference mode signal output line; bidirectional couple and isolated DC signal are carried out to network difference mode signal; the filter circuit includes common mode inductance; two pins of Same Name of Ends of common mode inductance are connected with the output line of termination power; other two pins of common mode inductance are connected with protection circuit, and protection circuit is released to abnormally high-voltage and high current.Present invention electronic component connect to be formed circuit mode realize existing market magnetic element network transformer coupling, filtering and defencive function; can be used instead of existing magnetic element network transformer; network transformer circuit can use machine fully-automatic production, and production efficiency is high, low production cost, product quality stabilization.
Description
Technical field
The present invention relates to network communication apparatus technical field, particularly a kind of network transformer circuit.
Background technology
In ethernet device, when meeting RJ45 by PHY, centre can all add a network transformer, transmission network difference
Signal, realizes signal isolation coupling, filtering and defencive function.Existing network transformer is traditional magnetic core coil structure, no
But there are problems that signal low frequency characteristic is poor, transmission speed, and core parts transformer magnetic coil winding need it is a large amount of
Hand wound, low production efficiency, cost of labor are high, while artificial production causes that quality of finished is difficult to management and control, cause fraction defective high,
With 100,000 PCS products meters, it is necessary to complete when about 550 people, 12 work, deficient manufacturing procedure rate surpasses 1%.
The content of the invention
In order to solve the problems, such as low production efficiency, high cost that current network transformer is present, the present invention proposes one kind
Network transformer circuit, with improve production efficiency and reduces cost.
To achieve these goals, the invention provides a kind of network transformer circuit, it is characterised in that including a son
Circuit, the sub-circuit includes the termination power, filter circuit and the protection circuit that are sequentially connected, and termination power is believed with network differential mode
The connection of number output line, bidirectional couple and isolated DC signal are carried out to network difference mode signal, and the filter circuit includes common mode electricity
Sense, two pins of Same Name of Ends of common mode inductance are connected with the output line of termination power, other two pins and the guarantor of common mode inductance
Protection circuit is connected, and protection circuit is released to abnormally high-voltage and high current.
Inventive network transformer circuit, is connected to form the mode of circuit and realize existing market magnetic unit with electronic component
The coupling of part network transformer, filtering and defencive function, can use instead of existing magnetic element network transformer, network change
Transformer circuits can use machine fully-automatic production, and production efficiency is high, low production cost, product quality stabilization.Using common mode inductance
To filter, can effectively suppression common mode interference signal, play good EMI filter actions, make network signal transmission bandwidth it is wider,
Transmit more stable, transmission speed faster.
Brief description of the drawings
Fig. 1 is the sub-circuit circuit diagram of network transformer；
Fig. 2 is with two network transformer circuit diagrams of sub-circuit；
Fig. 3 is with three network transformer circuit diagram of sub-circuit
The present invention is described in further detail below in conjunction with the accompanying drawings.
Specific embodiment
Embodiment one
Referring to Fig. 1, the network transformer circuit of the present embodiment only has a sub-circuit, and sub-circuit includes what is be sequentially connected
Termination power 1, filter circuit 2 and protection circuit 3.Termination power 1 is connected with two the root network difference mode signal output lines, high-speed transfer
Network difference mode signal, bidirectional couple and isolated DC signal are carried out to network difference mode signal.Termination power 1 uses passive capacitive coupling
Conjunction mode, including first resistor R1, the first electric capacity C1, second resistance R2 and the second electric capacity C2, one end of first resistor R1 and
The root network difference mode signal output line is connected, other end ground connection, and one end of second resistance R2 exports with another the root network difference mode signal
Line is connected, other end ground connection, and the two ends of the first electric capacity C1 connect a root network difference mode signal output line and common mode inductance L respectively
One Same Name of Ends pin, the two ends of the second electric capacity C2 connect another the root network difference mode signal output line and common mode inductance L respectively
Another Same Name of Ends pin.
The high frequency garbage signal that filter circuit 2 is used in screen signal, including common mode inductance L, common mode inductance L's is same
Two, end of name pin is connected with the output line of termination power, i.e., be connected with the first electric capacity C1 and the second electric capacity C2, common mode inductance L's
Other two pins are connected with protection circuit 3, and two pins are also the output line of network transformer circuit.Common mode inductance
L shows that big inductance is inhibited for common-mode signal, and the leakage inductance for showing very little for difference mode signal is hardly
Work.Common mode inductance L can effectively suppression common mode interference signal, and on the difference mode signal of circuit normal transmission without influence.Altogether
Mould inductance L can play good EMI filter actions, make network signal transmission bandwidth it is wider, transmit more stable, transmission speed more
Hurry up.
Protection circuit 3 is used to release abnormally high-voltage and high current, makes secondary electron element or circuit not by outer
The destruction of portion's high pressure, plays a protective role to secondary electron element or circuit.Protection circuit 3 include the first voltage-regulator diode D1 and
The positive pole of the second voltage-regulator diode D2, the first voltage-regulator diode D1 and the second voltage-regulator diode D2 is grounded, and negative pole is connected respectively
Two pins of common mode inductance L.Protection circuit 3 is directly divided abnormally high-voltage and high current using the characteristic of voltage-regulator diode
Dissipate and introduce ground.
Embodiment two
Referring to Fig. 2, the network transformer circuit of the present embodiment has two sub-circuits, the input of each sub-circuit with not
Same network difference mode signal output line connection, i.e., one input and two the root network difference mode signal output lines of sub-circuit are another
The input of individual sub-circuit and other two the root network difference mode signal output lines.Each sub-circuit has 2 output lines, and whole network becomes
Transformer circuits just have 4 output lines.
Embodiment three
Referring to Fig. 3, the network transformer circuit of the present embodiment has three sub-circuits, the input of each sub-circuit with not
Same network difference mode signal output line connection, network transformer circuit is connected with 6 the root network difference mode signal output lines.The electricity per height
There are 2 output lines on road, and whole network transformer circuit just has 6 output lines.
The setting of network transformer circuit varying number sub-circuit, makes network transformer circuit have the input of varying number
Line and output line, in order to be matched with PHY and RJ45 with respective numbers port, expand the use of network transformer circuit
Scope.
The all of electronic component concentrated setting of network transformer circuit is easy to use, transports and stores in PCB substrate,
Assembling mode can use SMT modes.
Inventive network transformer circuit, is connected to form the mode of circuit and realize existing market magnetic unit with electronic component
The coupling of part network transformer, filtering and defencive function, can use instead of existing magnetic element network transformer, network change
Transformer circuits can use machine fully-automatic production, and production efficiency is high, low production cost, product quality stabilization.Using common mode inductance
To filter, can effectively suppression common mode interference signal, play good EMI filter actions, make network signal transmission bandwidth it is wider,
Transmit more stable, transmission speed faster.
Claims (5)
1. a kind of network transformer circuit, it is characterised in that including a sub-circuit, the sub-circuit includes the coupling being sequentially connected
Circuit, filter circuit and protection circuit are closed, termination power is connected with network difference mode signal output line, network difference mode signal is carried out
Bidirectional couple and isolated DC signal, the filter circuit include common mode inductance, two pins of Same Name of Ends and coupling of common mode inductance
The output line connection of circuit is closed, other two pins of common mode inductance are connected with protection circuit, and protection circuit is to abnormally high-voltage
Released with high current.
2. network transformer circuit according to claim 1, it is characterised in that the termination power include first resistor,
First electric capacity, second resistance and the second electric capacity, one end of first resistor are connected with a root network difference mode signal output line, the other end
Ground connection, one end of second resistance is connected with another the root network difference mode signal output line, other end ground connection, the two ends point of the first electric capacity
A Same Name of Ends pin of a root network difference mode signal output line and the common mode inductance, the two ends difference of the second electric capacity are not connected
Connect another Same Name of Ends pin of another the root network difference mode signal output line and the common mode inductance.
3. network transformer circuit according to claim 2, it is characterised in that the protection circuit includes the first voltage stabilizing two
The positive pole of pole pipe and the second voltage-regulator diode, the first voltage-regulator diode and the second voltage-regulator diode is grounded, and negative pole is connected respectively
Two pins of the common mode inductance.
4. network transformer circuit according to claim 3, it is characterised in that network transformer circuit is arranged on PCB bases
On plate.
5. the network transformer circuit according to claim any one of 1-4, it is characterised in that network transformer circuit includes
Two or more sub-circuits, each sub-circuit is connected from different network difference mode signal output lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710027206.7A CN106849689A (en) | 2017-01-13 | 2017-01-13 | A kind of network transformer circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710027206.7A CN106849689A (en) | 2017-01-13 | 2017-01-13 | A kind of network transformer circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106849689A true CN106849689A (en) | 2017-06-13 |
Family
ID=59123753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710027206.7A Pending CN106849689A (en) | 2017-01-13 | 2017-01-13 | A kind of network transformer circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106849689A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117118424A (en) * | 2023-02-13 | 2023-11-24 | 荣耀终端有限公司 | Network voltage transformation circuit and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2735667Y (en) * | 2004-01-06 | 2005-10-19 | 中国电力科学研究院 | Channel optimizing device for power line high-speed data communication system |
| CN1859150A (en) * | 2005-07-19 | 2006-11-08 | 上海华为技术有限公司 | Communication link system and its method with protective function |
| CN202998013U (en) * | 2012-11-29 | 2013-06-12 | 番禺得意精密电子工业有限公司 | Network signal processing circuit |
| CN206533287U (en) * | 2017-01-13 | 2017-09-29 | 戴祁弘 | A kind of network transformer circuit |
-
2017
- 2017-01-13 CN CN201710027206.7A patent/CN106849689A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2735667Y (en) * | 2004-01-06 | 2005-10-19 | 中国电力科学研究院 | Channel optimizing device for power line high-speed data communication system |
| CN1859150A (en) * | 2005-07-19 | 2006-11-08 | 上海华为技术有限公司 | Communication link system and its method with protective function |
| CN202998013U (en) * | 2012-11-29 | 2013-06-12 | 番禺得意精密电子工业有限公司 | Network signal processing circuit |
| CN206533287U (en) * | 2017-01-13 | 2017-09-29 | 戴祁弘 | A kind of network transformer circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117118424A (en) * | 2023-02-13 | 2023-11-24 | 荣耀终端有限公司 | Network voltage transformation circuit and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20191118 Address after: Floor 2, workshop 4, No. 3288, Zhongshan West Road, Xiuzhou New District, Jiaxing City, Zhejiang Province Applicant after: Jiaxing Weige Medical Devices Co.,Ltd. Address before: 5 / F, No.7, Lane 75, Huaide street, Beitou District, Taipei, Taiwan, China Applicant before: Dai Qihong |
|
| 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: 20170613 |