CN113037329B - Connecting circuit and connecting method of power line carrier decoupling network - Google Patents
Connecting circuit and connecting method of power line carrier decoupling network Download PDFInfo
- Publication number
- CN113037329B CN113037329B CN202110104250.XA CN202110104250A CN113037329B CN 113037329 B CN113037329 B CN 113037329B CN 202110104250 A CN202110104250 A CN 202110104250A CN 113037329 B CN113037329 B CN 113037329B
- Authority
- CN
- China
- Prior art keywords
- circuit
- capacitor
- decoupling
- power line
- power
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The invention provides a connecting circuit of a power line carrier decoupling network and a connecting method thereof, wherein the connecting circuit comprises a first circuit, a second circuit, a third circuit, a fourth circuit and a fifth circuit; the first circuit comprises a capacitor X and a capacitor Y, wherein the capacitor X is connected between power lines, and the capacitor Y is connected between the power lines and the ground; the second circuit comprises a set of inductances for equivalently describing the long-distance power line; the third circuit comprises a first decoupling capacitor, a first decoupling transformer and a power carrier communication slave module, the fourth circuit comprises a second decoupling capacitor, a second decoupling transformer and a power carrier communication master module, and the fifth circuit comprises an equivalent transformer in a power line network. According to the technical scheme, the decoupling network connection corresponding to the low-impedance network design between the power line and the equipment is selected, so that the stability and the reliability of power line carrier communication in a long-distance strong-interference communication environment are guaranteed.
Description
Technical Field
The invention belongs to the technical field of power line carriers, and particularly relates to a connecting circuit and a connecting method of a power line carrier decoupling network.
Background
At present, a power line carrier communication mode is adopted, and a main communication mode is formed due to low design and operation cost because a network does not need to be erected again. However, in the existing power line carrier communication, because the power line network topology is complex, different signal coupling modes have different losses to the power carrier signal, and when the load on the power line is heavy, the line impedance can reach below 1 ohm, which causes signal attenuation of the carrier signal in the transmission on the power line, and in addition, the device absorbs the signal, which affects the stability and reliability of the communication, especially in the long-distance transmission process, the interference signal is stronger, which makes the communication more unstable and unreliable.
Disclosure of Invention
Aiming at the technical problems, the invention discloses a connecting circuit of a power line carrier decoupling network and a connecting method thereof, which can effectively reduce the attenuation of carrier signals transmitted on a power line and the absorption of equipment on the signals, thereby ensuring the stability and reliability of power line carrier communication in a long-distance strong-interference communication environment.
In contrast, the technical scheme adopted by the invention is as follows:
a connecting circuit of a power line carrier decoupling network comprises a first circuit, a second circuit, a third circuit, a fourth circuit and a fifth circuit, wherein the first circuit comprises a capacitor X and a capacitor Y, the capacitor X is connected between power lines, and the capacitor Y is connected between the power lines and the ground; the capacitor X and the capacitor Y are high-frequency capacitors;
the second circuit comprises a group of inductances for equivalently describing the long-distance power line, and each inductance is connected in series with the corresponding power line;
the third circuit comprises a first decoupling capacitor, a first decoupling transformer and a power carrier communication slave module, wherein the first decoupling capacitor is connected with one end of a primary winding of the first decoupling transformer, and two ends of a secondary winding of the first decoupling transformer are connected with the power carrier communication slave module;
the fourth circuit comprises a second decoupling capacitor, a second decoupling transformer and a power carrier communication main module, wherein the second decoupling capacitor is connected with one end of a primary winding of the second decoupling transformer, and two ends of a secondary winding of the second decoupling transformer are connected with the power carrier communication main module;
the fifth circuit comprises equivalent transformers in a power line network, and the equivalent transformers are connected with each power line;
the communication equipment is sequentially connected with the first circuit, the second circuit and the fifth circuit in series; the third circuit is positioned between the first circuit and the second circuit and is bridged between the power lines; the fourth circuit is positioned between the second circuit and the fifth circuit and is bridged between two power lines which are the same as the third circuit or between the power lines and the ground.
By adopting the technical scheme, the corresponding decoupling network connection is designed by utilizing the low impedance network between the power line and the equipment, so that the attenuation of the transmission of the carrier signal on the power line and the absorption of the equipment to the signal can be effectively reduced.
As a further improvement of the present invention, in the third circuit, two ends of the primary winding of the first decoupling transformer are connected in parallel with the first capacitor; in the fourth circuit, two ends of the primary winding of the second decoupling transformer are connected in parallel with the second capacitor.
As a further improvement of the present invention, in the third circuit, two ends of the first capacitor are connected in parallel with the first inductor; in the fourth circuit, two ends of the second capacitor are connected in parallel with the second inductor.
As a further improvement of the present invention, the other end of the primary winding of the first decoupling transformer is connected in series with a third capacitor, and the other end of the primary winding of the second decoupling transformer is connected in series with a fourth capacitor.
As a further improvement of the present invention, if the capacitance value of the capacitor Y in the first circuit is smaller than that of the capacitor X, the third circuit and the fourth circuit are bridged between any power line and the ground. I.e. in parallel relationship with any capacitance Y.
As a further improvement of the present invention, one end of the primary winding of the first decoupling transformer of the third circuit is connected to another power line through a fifth capacitor, respectively; and one end of a primary winding of a second decoupling transformer of the fourth circuit is connected with the other power line through a sixth capacitor respectively.
As a further improvement of the present invention, if the capacitance value of the capacitor Y in the first circuit is greater than that of the capacitor X, the third circuit and the fourth circuit are connected across any two power lines, i.e. are in parallel relation with any capacitor X.
As a further improvement of the invention, the capacitor X and the capacitor Y are located in the communication device.
The invention also discloses a connection method of the power line carrier decoupling network, which adopts the connection circuit of the power line carrier decoupling network, and communication equipment is sequentially connected with the first circuit, the second circuit and the fifth circuit in series; the third circuit is positioned between the first circuit and the second circuit and is bridged between the power lines; the fourth circuit is positioned between the second circuit and the fifth circuit and is bridged between two power lines which are the same as the third circuit or between the power lines and the ground; and selecting a decoupling network connection corresponding to the low impedance network design between the power lines and the equipment according to the condition, wherein when the capacitance value of the capacitor Y is larger than that of the capacitor X, the third circuit and the fourth circuit are bridged between any two power lines, and when the capacitance value of the capacitor Y is smaller than that of the capacitor X, the third circuit and the fourth circuit are bridged between any one power line and the ground.
Compared with the prior art, the invention has the following beneficial effects:
by adopting the technical scheme of the invention, the decoupling network connection corresponding to the low-impedance network design between the power line and the equipment is selected, so that the attenuation of the transmission of the carrier signal on the power line and the absorption of the equipment to the signal can be effectively reduced. Therefore, the stability and the reliability of the power line carrier communication in a long-distance strong-interference communication environment are ensured.
Drawings
Fig. 1 is a schematic diagram of a connection circuit of a power line carrier decoupling network according to embodiment 1 of the present invention.
Fig. 2 is a schematic diagram of a connection circuit of a power line carrier decoupling network according to embodiment 2 of the present invention.
Fig. 3 is a schematic diagram of a connection circuit of a power line carrier decoupling network according to embodiment 3 of the present invention.
Fig. 4 is a schematic diagram of a connection circuit of a power line carrier decoupling network according to embodiment 4 of the present invention.
Fig. 5 is a schematic diagram of a third circuit and a fourth circuit in embodiment 5 of the present invention, in which a) is the third circuit and b) is the fourth circuit.
Fig. 6 is a schematic diagram of a third circuit and a fourth circuit in embodiment 6 of the present invention, in which a) is the third circuit and b) is the fourth circuit.
Fig. 7 is a schematic diagram of a third circuit and a fourth circuit in embodiment 7 of the present invention, in which a) is the third circuit and b) is the fourth circuit.
Fig. 8 is a schematic diagram of a connection circuit of a power line carrier decoupling network according to embodiment 8 of the present invention.
Fig. 9 is a schematic diagram of a connection circuit of a power line carrier decoupling network according to embodiment 9 of the present invention.
The reference numerals include:
1-a first circuit, 2-a second circuit, 3-a third circuit, 4-a fourth circuit, 5-a fifth circuit.
Detailed Description
Preferred embodiments of the present invention are described in further detail below.
Example 1
As shown in fig. 1, a connection circuit of a power line carrier decoupling network includes a first circuit 1, a second circuit 2, a third circuit 3, a fourth circuit 4, and a fifth circuit 5, where the first circuit 1 includes a capacitor X and a capacitor Y, the capacitor X is connected between power lines, and the capacitor Y is connected between the power lines and the ground; the capacitor X and the capacitor Y are high-frequency capacitors;
the second circuit 2 comprises a set of inductances equivalent to describe a long-distance power line, each inductance being connected in series with a respective power line;
the third circuit 3 comprises a first decoupling capacitor, a first decoupling transformer and a power carrier communication slave module, wherein the first decoupling capacitor is connected with one end of a primary winding of the first decoupling transformer, and two ends of a secondary winding of the first decoupling transformer are connected with the power carrier communication slave module;
the fourth circuit 4 comprises a second decoupling capacitor, a second decoupling transformer and a power carrier communication main module, wherein the second decoupling capacitor is connected with one end of a primary winding of the second decoupling transformer, and two ends of a secondary winding of the second decoupling transformer are connected with the power carrier communication main module;
the fifth circuit 5 comprises an equivalent transformer in a power line network, and the equivalent transformer is connected with each power line;
the communication equipment is sequentially connected with the first circuit 1, the second circuit 2 and the fifth circuit 5 in series; the third circuit 3 is positioned between the first circuit 1 and the second circuit 2 and is bridged between power lines; the fourth circuit 4 is located between the second circuit 2 and the fifth circuit 5 and is connected across two power lines in common with the third circuit 3.
Furthermore, the third circuit 3 and the fourth circuit 4 select the crossed power line to satisfy the principle that the impedance is the largest corresponding to the carrier frequency. If the capacitance value of the capacitor Y in the first circuit 1 is larger than that of the capacitor X, the third circuit 3 and the fourth circuit 4 are connected across any two power lines. I.e. in parallel relationship with any capacitance X. The capacitance X and the capacitance Y of the first circuit 1 are located in the communication device.
Example 2
As shown in fig. 2, a connection circuit of a power line carrier decoupling network includes a first circuit 1, a second circuit 2, a third circuit 3, a fourth circuit 4, and a fifth circuit 5, where the first circuit 1 includes a capacitor X and a capacitor Y, the capacitor X is connected between power lines, and the capacitor Y is connected between the power lines and the ground; the capacitor X and the capacitor Y are high-frequency capacitors; the second circuit 2 comprises a set of inductances equivalent to describe a long-distance power line, each inductance being connected in series with a respective power line; the third circuit 3 comprises a first decoupling capacitor, a first decoupling transformer and a power carrier communication slave module, wherein the first decoupling capacitor is connected with one end of a primary winding of the first decoupling transformer, and two ends of a secondary winding of the first decoupling transformer are connected with the power carrier communication slave module; the fourth circuit 4 comprises a second decoupling capacitor, a second decoupling transformer and a power carrier communication main module, wherein the second decoupling capacitor is connected with one end of a primary winding of the second decoupling transformer, and two ends of a secondary winding of the second decoupling transformer are connected with the power carrier communication main module; the fifth circuit 5 comprises an equivalent transformer in a power line network, and the equivalent transformer is connected with each power line; the communication equipment is sequentially connected with the first circuit 1, the second circuit 2 and the fifth circuit 5 in series; the third circuit 3 is positioned between the first circuit 1 and the second circuit 2 and is bridged between power lines; the capacitance value of the capacitor Y in the first circuit 1 is smaller than that of the capacitor X, and the fourth circuit 4 is positioned between the second circuit 2 and the fifth circuit 5 and is bridged between a power line and the ground.
Further, the third circuit 3 and the fourth circuit 4 select the crossed power line to satisfy the principle that the carrier frequency corresponds to the maximum impedance. If the capacitance value of the capacitor Y in the first circuit 1 is smaller than that of the capacitor X, the third circuit 3 and the fourth circuit 4 are connected across any power line and the ground, i.e. are in parallel connection with any capacitor Y. The capacitance X and the capacitance Y of the first circuit 1 are located in the communication device.
Example 3
On the basis of embodiment 1, as shown in fig. 3, this embodiment is applied to a single-phase power line network, and includes a first circuit 1, a second circuit 2, a third circuit 3, a fourth circuit 4, and a fifth circuit 5, where the first circuit 1 includes a capacitor X and a capacitor Y, the capacitor X is connected between power lines, and the capacitor Y is connected between the power lines and ground; the capacitor X and the capacitor Y are high-frequency capacitors; the second circuit 2 comprises a set of inductances equivalent to describe a long-distance power line, each inductance being connected in series with a respective power line; the third circuit 3 comprises a first decoupling capacitor, a first decoupling transformer and a power carrier communication slave module, wherein the first decoupling capacitor is connected with one end of a primary winding of the first decoupling transformer, and two ends of a secondary winding of the first decoupling transformer are connected with the power carrier communication slave module; the fourth circuit 4 comprises a second decoupling capacitor, a second decoupling transformer and a power carrier communication main module, wherein the second decoupling capacitor is connected with one end of a primary winding of the second decoupling transformer, and two ends of a secondary winding of the second decoupling transformer are connected with the power carrier communication main module; the fifth circuit 5 comprises an equivalent transformer in a power line network, which equivalent transformer is connected to the power line. The communication equipment is sequentially connected with the first circuit 1, the second circuit 2 and the fifth circuit 5 in series; the third circuit 3 is positioned between the first circuit 1 and the second circuit 2 and is bridged between power lines; the fourth circuit 4 is located between the second circuit 2 and the fifth circuit 5 and is connected across the power lines.
Example 4
On the basis of embodiment 1, as shown in fig. 4, this embodiment is applied to a single-phase power line network, and includes a first circuit 1, a second circuit 2, a third circuit 3, a fourth circuit 4, and a fifth circuit 5, where the first circuit 1 includes a capacitor X and a capacitor Y, the capacitor X is connected between power lines, and the capacitor Y is connected between the power lines and ground; the capacitor X and the capacitor Y are high-frequency capacitors; the second circuit 2 comprises a set of inductances equivalent to describe a long-distance power line, each inductance being connected in series with a respective power line; the third circuit 3 comprises a first decoupling capacitor, a first decoupling transformer and a power carrier communication slave module, wherein the first decoupling capacitor is connected with one end of a primary winding of the first decoupling transformer, and two ends of a secondary winding of the first decoupling transformer are connected with the power carrier communication slave module; the fourth circuit 4 comprises a second decoupling capacitor, a second decoupling transformer and a power carrier communication main module, wherein the second decoupling capacitor is connected with one end of a primary winding of the second decoupling transformer, and two ends of a secondary winding of the second decoupling transformer are connected with the power carrier communication main module; the fifth circuit 5 comprises an equivalent transformer in a power line network, which equivalent transformer is connected to the power line. The communication equipment is sequentially connected with the first circuit 1, the second circuit 2 and the fifth circuit 5 in series; the third circuit 3 is positioned between the first circuit 1 and the second circuit 2 and is bridged between a power line and the ground; the fourth circuit 4 is located between the second circuit 2 and the fifth circuit 5 and is connected across the power line and ground.
Example 5
On the basis of embodiment 1, the third circuit 3 may also adopt a circuit as shown in fig. 5 a), or the fourth circuit 4 may adopt a circuit as shown in fig. 5 b), in the third circuit 3, two ends of the primary winding of the first decoupling transformer are connected in parallel with the first capacitor; in the fourth circuit 4, two ends of the primary winding of the second decoupling transformer are connected in parallel with the second capacitor.
Example 6
On the basis of embodiment 1, the third circuit 3 may also adopt a circuit as shown in fig. 6 a), or the fourth circuit 4 may adopt a circuit as shown in fig. 6 b), in the third circuit 3, two ends of the primary winding of the first decoupling transformer are connected in parallel with the first capacitor, and two ends of the first capacitor are connected in parallel with the first inductor; in the fourth circuit 4, two ends of the primary winding of the second decoupling transformer are connected in parallel with the second capacitor, and two ends of the second capacitor are connected in parallel with the second inductor.
Example 7
On the basis of embodiment 1, the third circuit 3 may also adopt a circuit as shown in fig. 7 a), or the fourth circuit 4 may adopt a circuit as shown in fig. 7 b), in the third circuit 3, both ends of the primary winding of the first decoupling transformer are connected in parallel with the first capacitor, and in the fourth circuit 4, both ends of the primary winding of the second decoupling transformer are connected in parallel with the second capacitor; the other end of the primary winding of the first decoupling transformer is connected in series with a third capacitor, and the other end of the primary winding of the second decoupling transformer is connected in series with a fourth capacitor.
Example 8
On the basis of embodiment 1, when the third circuit 3 and the fourth circuit 4 are bridged between the power lines and the ground, the connection mode may be as shown in fig. 8, where one end of the primary winding of the first decoupling transformer of the third circuit 3 is connected to the other two power lines through a fifth capacitor, respectively; one end of a primary winding of a second decoupling transformer of the fourth circuit 4 is connected with the other two power lines through a sixth capacitor respectively.
Example 9
On the basis of embodiment 1, for a single-phase power line network, when the third circuit 3 and the fourth circuit 4 are bridged between a power line and the ground, a connection mode as shown in fig. 9 may be adopted, where one end of the primary winding of the first decoupling transformer of the third circuit 3 is connected to another power line through a fifth capacitor; one end of the primary winding of the second decoupling transformer of the fourth circuit 4 is connected to the other power line via a sixth capacitor.
The embodiment of the invention also discloses a connection method of the power line carrier decoupling network, which can adopt the connection circuit of the power line carrier decoupling network as described in the embodiments 1-9, and the communication equipment is sequentially connected with the first circuit, the second circuit and the fifth circuit in series; the third circuit is positioned between the first circuit and the second circuit and is bridged between the power lines; the fourth circuit is positioned between the second circuit and the fifth circuit and is bridged between two power lines which are the same as the third circuit or between the power lines and the ground; and selecting a decoupling network connection corresponding to the design of the low-impedance network between the power line and the equipment according to the situation. When the capacitance value of the capacitor Y is smaller than that of the capacitor X, the third circuit 3 and the fourth circuit 4 are bridged between any power line and the ground.
The foregoing is a further detailed description of the invention in connection with specific preferred embodiments and it is not intended to limit the invention to the specific embodiments described. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (7)
1. A connecting circuit of a power line carrier decoupling network is characterized in that: the circuit comprises a first circuit, a second circuit, a third circuit, a fourth circuit and a fifth circuit;
the first circuit comprises a capacitor X and a capacitor Y, wherein the capacitor X is connected between power lines, and the capacitor Y is connected between the power lines and the ground; the capacitor X and the capacitor Y are high-frequency capacitors;
the second circuit comprises a group of inductances which are used for equivalently describing the long-distance power line, and each inductance is connected in series with the corresponding power line;
the third circuit comprises a first decoupling capacitor, a first decoupling transformer and a power carrier communication slave module, wherein the first decoupling capacitor is connected with one end of a primary winding of the first decoupling transformer, and two ends of a secondary winding of the first decoupling transformer are connected with the power carrier communication slave module;
the fourth circuit comprises a second decoupling capacitor, a second decoupling transformer and a power carrier communication main module, wherein the second decoupling capacitor is connected with one end of a primary winding of the second decoupling transformer, and two ends of a secondary winding of the second decoupling transformer are connected with the power carrier communication main module;
the fifth circuit comprises equivalent transformers in a power line network, and the equivalent transformers are connected with each power line;
the communication equipment is sequentially connected with the first circuit, the second circuit and the fifth circuit in series; the third circuit is positioned between the first circuit and the second circuit and is bridged between the power lines; the fourth circuit is positioned between the second circuit and the fifth circuit and is bridged between two power lines which are the same as the third circuit or between the power lines and the ground;
the decoupling network connection corresponding to the low impedance network design between the power line and the equipment is selected according to the situation, the power line selectively bridged by the third circuit and the fourth circuit meets the principle of maximum impedance corresponding to the carrier frequency,
if the capacitance value of the capacitor Y in the first circuit is smaller than that of the capacitor X, the third circuit and the fourth circuit are bridged between any power line and the ground;
and if the capacitance value of the capacitor Y in the first circuit is larger than that of the capacitor X, the third circuit and the fourth circuit are bridged between any two power lines.
2. The connection circuit of the power line carrier decoupling network of claim 1, wherein: in the third circuit, two ends of the primary winding of the first decoupling transformer are connected in parallel with the first capacitor; in the fourth circuit, two ends of the primary winding of the second decoupling transformer are connected in parallel with the second capacitor.
3. The connection circuit of the power line carrier decoupling network as claimed in claim 2, wherein: in the third circuit, two ends of the first capacitor are connected with the first inductor in parallel; in the fourth circuit, two ends of the second capacitor are connected in parallel with the second inductor.
4. The connection circuit of the power line carrier decoupling network as claimed in claim 2, wherein: the other end of the primary winding of the first decoupling transformer is connected with a third capacitor in series, and the other end of the primary winding of the second decoupling transformer is connected with a fourth capacitor in series.
5. The connection circuit of the power line carrier decoupling network as claimed in claim 1, wherein: when the capacitance value of the capacitor Y in the first circuit is smaller than that of the capacitor X, one end of a primary winding of a first decoupling transformer of the third circuit is connected with another power line through a fifth capacitor respectively; and one end of a primary winding of a second decoupling transformer of the fourth circuit is connected with the other power line through a sixth capacitor respectively.
6. The connection circuit of the power line carrier decoupling network of claim 1, wherein: the capacitor X and the capacitor Y are located in the communication equipment.
7. A connection method of a power line carrier decoupling network is characterized in that: the connecting circuit of the power line carrier decoupling network as claimed in claim 1 is adopted, and the communication equipment is sequentially connected with the first circuit, the second circuit and the fifth circuit in series; the third circuit is positioned between the first circuit and the second circuit and is bridged between the power lines; the fourth circuit is positioned between the second circuit and the fifth circuit and is bridged between two power lines which are the same as the third circuit or between the power lines and the ground;
and selecting a decoupling network connection corresponding to the design of a low impedance network between the power line and the equipment according to the situation, wherein the third circuit and the fourth circuit select the power line to be bridged to meet the principle that the impedance corresponding to the carrier frequency is the maximum, when the capacitance value of the capacitor Y is greater than that of the capacitor X, the third circuit and the fourth circuit are bridged between any two power lines, and when the capacitance value of the capacitor Y is less than that of the capacitor X, the third circuit and the fourth circuit are bridged between any one power line and the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110104250.XA CN113037329B (en) | 2021-01-26 | 2021-01-26 | Connecting circuit and connecting method of power line carrier decoupling network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110104250.XA CN113037329B (en) | 2021-01-26 | 2021-01-26 | Connecting circuit and connecting method of power line carrier decoupling network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113037329A CN113037329A (en) | 2021-06-25 |
| CN113037329B true CN113037329B (en) | 2022-12-20 |
Family
ID=76459794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110104250.XA Active CN113037329B (en) | 2021-01-26 | 2021-01-26 | Connecting circuit and connecting method of power line carrier decoupling network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113037329B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB523697A (en) * | 1939-01-12 | 1940-07-19 | Marconi Wireless Telegraph Co | Improvements in or relating to radio and like receivers |
| GB1147231A (en) * | 1965-03-26 | 1969-04-02 | Telefunken Patent | High-frequency push-pull amplifier circuit |
| WO1989003623A1 (en) * | 1987-10-15 | 1989-04-20 | The South East Queensland Electricity Board | Decoupling network and communication system |
| CN104502755A (en) * | 2014-12-15 | 2015-04-08 | 北京航空航天大学 | Gaussian even pulse high-current high-power broadband power line injection coupling network and construction method thereof |
| WO2015157527A1 (en) * | 2014-04-09 | 2015-10-15 | Linear Technology Corporation | BROADBAND POWER COUPLING/DECOUPLING NETWORK FOR PoDL |
| CN214675142U (en) * | 2021-01-26 | 2021-11-09 | 深圳科士达科技股份有限公司 | Connecting circuit of power line carrier decoupling network |
-
2021
- 2021-01-26 CN CN202110104250.XA patent/CN113037329B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB523697A (en) * | 1939-01-12 | 1940-07-19 | Marconi Wireless Telegraph Co | Improvements in or relating to radio and like receivers |
| GB1147231A (en) * | 1965-03-26 | 1969-04-02 | Telefunken Patent | High-frequency push-pull amplifier circuit |
| WO1989003623A1 (en) * | 1987-10-15 | 1989-04-20 | The South East Queensland Electricity Board | Decoupling network and communication system |
| WO2015157527A1 (en) * | 2014-04-09 | 2015-10-15 | Linear Technology Corporation | BROADBAND POWER COUPLING/DECOUPLING NETWORK FOR PoDL |
| CN106105094A (en) * | 2014-04-09 | 2016-11-09 | 凌力尔特公司 | Broadband power coupling/uncoupling network for PoDL |
| CN104502755A (en) * | 2014-12-15 | 2015-04-08 | 北京航空航天大学 | Gaussian even pulse high-current high-power broadband power line injection coupling network and construction method thereof |
| CN214675142U (en) * | 2021-01-26 | 2021-11-09 | 深圳科士达科技股份有限公司 | Connecting circuit of power line carrier decoupling network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113037329A (en) | 2021-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7286026B2 (en) | Serial signal injection using capacitive and transformer couplings for power line communications | |
| EP3291453B1 (en) | Power carrier signal coupling circuit and communication system | |
| CN110277920B (en) | Power and communication system for providing differential data and DC power on line pairs | |
| US10425237B1 (en) | Termination for wire pair carrying DC and differential signals | |
| US10382216B1 (en) | Termination for wire pair carrying DC and differential signals | |
| CN102082612A (en) | Controller area network (CAN) bus-based anti-electromagnetic interference method and device | |
| KR20050048606A (en) | Common mode signal suppressing circuit and normal mode signal suppressing circuit | |
| CN214675142U (en) | Connecting circuit of power line carrier decoupling network | |
| CN113037329B (en) | Connecting circuit and connecting method of power line carrier decoupling network | |
| US20220278622A1 (en) | Power conversion apparatus including transformer and operable with reduced common mode noise | |
| WO2023208252A1 (en) | Digital isolator | |
| CN202841146U (en) | Ethernet electromagnetic interference suppression device | |
| CN111681851A (en) | High-speed differential signal input-output circuit and integrated circuit chip | |
| CN215773083U (en) | Communication isolation circuit and communication isolator | |
| EP3836395B1 (en) | Noise suppressor | |
| KR100847570B1 (en) | Power line communication device for signal isolator and leakage signal absorber | |
| CN217282720U (en) | Capacitance separation type voltage transformation circuit | |
| EP3164944B1 (en) | Hybrid coil circuit | |
| US11601162B2 (en) | Capacitive coupling circuit device provided with capacitive coupling circuit demodulating modulated signal transmitted through coupling capacitor | |
| CN110830084B (en) | Phase coupling driving circuit of power line carrier communication system | |
| CN220821890U (en) | Balun device for radio frequency front end module | |
| CN215868949U (en) | Transformer and photovoltaic power generation system | |
| CN214280931U (en) | Overvoltage surge protection circuit and device | |
| CN215601285U (en) | Common mode noise suppression circuit for high-speed differential signal | |
| CN217363098U (en) | Communication isolation 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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20221102 Address after: Floor 9, Keshida Industrial Park R&D Building, No.7 Road, Gaoxinyuan West District, Guangming New District, Shenzhen, Guangdong 518000 Applicant after: SHENZHEN KSTAR NEW ENERGY Co.,Ltd. Address before: 518000 rooms 401 and 402, 4th floor, building 1, software park, kejizhong 2nd Road, Gaoxin North District, Nanshan District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN KSTAR SCIENCE AND TECHNOLOGY Co.,Ltd. Applicant before: Guangdong Youdian New Energy Technology Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |