CN112532280A - Circuit for transmitting signals in direct-current power carrier mode - Google Patents
Circuit for transmitting signals in direct-current power carrier mode Download PDFInfo
- Publication number
- CN112532280A CN112532280A CN202011561012.3A CN202011561012A CN112532280A CN 112532280 A CN112532280 A CN 112532280A CN 202011561012 A CN202011561012 A CN 202011561012A CN 112532280 A CN112532280 A CN 112532280A
- Authority
- CN
- China
- Prior art keywords
- resistor
- circuit
- diode
- triode
- control chip
- 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.)
- Withdrawn
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
- H04B3/548—Systems for transmission via power distribution lines the power on the line being DC
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5462—Systems for power line communications
- H04B2203/547—Systems for power line communications via DC power distribution
Abstract
The invention discloses a circuit for transmitting signals in a direct-current power carrier mode, which comprises an intelligent switch controller, a DB1 bridge stack, a ZD1 voltage-regulator tube, a ZD2 voltage-regulator tube, a ZD3 voltage-regulator tube, an R1 resistor, an R2 resistor, an R3 resistor, an R4 resistor, an R5 resistor, an R6 resistor, an R7 resistor, a Q1 triode, a Q2 triode, a D1 diode, a D2 diode, a D3 diode, a D4 diode and an MCU control chip. The invention is applied to a communication circuit with two lines passing through direct current carriers, is not limited by troubles caused by wiring or multiple lines, can transmit digital signals back and forth on two power lines without distinguishing the positive polarity and the negative polarity on a direct current power supply, isolates the contact of a human body and high voltage electricity because the direct current carriers of the two lines are used for supplying power and transmitting signals in low-voltage 15V direct current communication on the two lines, and is a convenient, safe and reliable communication mode.
Description
Technical Field
The invention relates to the technical field of power communication, in particular to a circuit for transmitting signals in a direct-current power carrier mode.
Background
In a digital signal communication circuit, in order to meet the requirements of communication and power supply, three lines are generally needed to transmit signals and supply power respectively, and in an actual application environment, two lines are used to meet the requirements.
Disclosure of Invention
The present invention is directed to a circuit for transmitting signals by a dc power carrier method, so as to solve the problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a circuit for transmitting signals in a direct current power carrier mode comprises an intelligent switch controller, a DB1 bridge stack, a ZD1 voltage regulator tube, a ZD2 voltage regulator tube, a ZD3 voltage regulator tube, an R1 resistor, an R2 resistor, an R3 resistor, an R4 resistor, an R5 resistor, an R6 resistor, an R7 resistor, a Q1 triode, a Q2 triode, a D1 diode, a D2 diode, a D3 diode, a D4 diode and an MCU control chip;
the intelligent switch controller sends a digital signal to an MCU control chip, the digital signal is carried on 15V direct current and is subjected to current limiting through an R1 resistor, the digital signal is transmitted to a D3 diode through WIN1 and is rectified and then subjected to current limiting through an R5 resistor, then the digital signal carried on the direct current and between 8V and 12V is screened out through signal chopping of a ZD3 voltage regulator tube, the signal is amplified through a Q2 triode and is finally transmitted to the MCU control chip, and the MCU control chip receives a command and performs corresponding command action;
the MCU control chip feeds back digital signals to the intelligent switch controller, the MCU control chip sends out digital signals, the digital signals are transmitted to the base electrode of the Q1 triode through the R4 resistor in a current limiting mode, when signals are transmitted to the base electrode of the Q1 triode, the Q1 triode is conducted through generated voltage, and the digital signals are transmitted to the intelligent switch controller through a power supply power line carrying the DB1 bridge stack after passing through the emitting electrode of the Q1 triode and the ZD2 voltage stabilizing tube.
Preferably, the intelligent switch controller and the MCU control chip both include digital signal transceiving ports, the R1 resistor is a circuit current-limiting resistor, and the DB1 bridge stack, the D1 diode, the D2 diode, the D3 diode, and the D4 diode are circuit rectifying elements, so that the transceiving signal ports do not need to distinguish between positive and negative polarities of the dc power supply circuit.
Preferably, the ZD1 voltage regulator tube ensures the stability of voltage in a direct current circuit.
Preferably, the R2 resistor is a discharge resistor, and when no signal is transmitted, the R2 resistor pulls the signal port low.
Preferably, the ZD2 voltage regulator tube is used for loading digital signals onto a carrier circuit, the Q1 triode amplifies output signals, and when the ZD2 voltage regulator tube is cut off, the R3 resistor supplies power to an emitter of the Q1 triode.
Preferably, the R4 resistor is a digital signal current-limiting resistor, the R5 resistor is a current-limiting resistor at the input signal end, the R6 resistor is a voltage pull-down resistor at the base and source of the Q2 triode, and the R7 resistor is a digital signal power supply resistor.
Preferably, the intelligent switch controller and the MCU control chip are electrically connected in a bidirectional communication manner.
Preferably, the power line carrier chopper circuit is connected by an electrical conductor.
Compared with the prior art, the invention has the following beneficial effects:
the invention is applied to a communication circuit with two lines passing through direct current carriers, is not limited by troubles caused by wiring or multiple lines, can transmit digital signals back and forth on two power lines without distinguishing the positive polarity and the negative polarity on a direct current power supply, and because the direct current carriers of the two lines are used for supplying power and transmitting signals in low-voltage 15V direct current communication of the two lines, the contact between a human body and high-voltage electricity is isolated, the communication circuit is a convenient, safe and reliable communication mode, can realize long-distance, high-reliability and low-speed signal transmission, and has the advantages of simple structure, few components, low cost, ingenious design and strong practicability.
Drawings
FIG. 1 is a schematic diagram of the circuit of the present invention;
FIG. 2 is a schematic diagram of a digital signal waveform of a 15V power carrier according to the present invention;
FIG. 3 is a schematic structural diagram of an MCU control chip according to the present invention.
In the figure: the circuit comprises an intelligent switch controller 1, a 2 DB1 bridge stack, a 3 ZD1 voltage regulator tube, a 4 ZD2 voltage regulator tube, a 5 ZD3 voltage regulator tube, a 6R 1 resistor, a 7R 2 resistor, an 8R 3 resistor, a 9R 4 resistor, a 10R 5 resistor, an 11R 6 resistor, a 12R 7 resistor, a 13Q 1 triode, a 14Q 2 triode, a 15D 1 diode, a 16D 2 diode, a 17D 3 diode, an 18D 4 diode and a 19 MCU control chip.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a circuit for transmitting signals in a direct current power carrier manner includes an intelligent switch controller 1, a DB1 bridge 2, a ZD1 voltage regulator 3, a ZD2 voltage regulator 4, a ZD3 voltage regulator 5, an R1 resistor 6, an R2 resistor 7, an R3 resistor 8, an R4 resistor 9, an R5 resistor 10, an R6 resistor 11, an R7 resistor 12, a Q1 triode 13, a Q2 triode 14, a D1 diode 15, a D2 diode 16, a D3 diode 17, a D4 diode 18, and an MCU control chip 19.
The intelligent switch controller 1 sends a digital signal to the MCU control chip 19, the digital signal is carried on 15V direct current and is subjected to current limiting through an R1 resistor 6, the digital signal is transmitted to a D3 diode 17 through WIN1 and is rectified and then is subjected to current limiting through an R5 resistor 10, then the digital signal carried on the direct current and between 8V and 12V is screened out through signal chopping of a ZD3 voltage regulator tube 5, the digital signal is subjected to signal amplification through a Q2 triode 14 and is finally transmitted to the MCU control chip 19, and the MCU control chip 19 receives a command and performs corresponding command action.
The MCU control chip 19 feeds back digital signals to the intelligent switch controller 1, the MCU control chip 19 firstly sends out digital signals, the digital signals are transmitted to the base electrode of the Q1 triode 13 through the R4 resistor 9 in a current limiting mode, when the signals are transmitted to the base electrode of the Q1 triode 13, the generated voltage enables the Q1 triode 13 to be conducted, and the digital signals are transmitted to the intelligent switch controller 1 through a power supply power line carrying the DB1 bridge stack 2 after passing through the emitting electrode of the Q1 triode 13 and the ZD2 voltage regulator tube 4.
In the specific implementation, the intelligent switch controller 1 and the MCU control chip 19 both include digital signal transceiving ports, the R1 resistor 6 is a circuit current-limiting resistor, the DB1 bridge stack 2, the D1 diode 15, the D2 diode 16, the D3 diode 17, and the D4 diode 18 are circuit rectifying elements, and the circuit rectifying elements make the transceiving signal ports unnecessary to distinguish between positive and negative polarities on the dc power supply circuit.
In practical application, the ZD1 voltage regulator 3 ensures the stability of voltage in the dc circuit.
In one embodiment, the R2 resistor 7 is a discharge resistor, and when no signal is transmitted, the R2 resistor 7 pulls the signal port low.
In specific implementation, the ZD2 voltage regulator 4 is used for carrying digital signals to a carrier circuit, the Q1 triode 13 amplifies output signals, and when the ZD2 voltage regulator 4 is turned off, the R3 resistor 8 supplies power to the emitter of the Q1 triode.
In specific implementation, the R4 resistor 9 is a digital signal current limiting resistor, the R5 resistor 10 is a current limiting resistor at an input signal end, the R6 resistor 11 is a voltage pull-down resistor at the base and source of the Q2 triode 14, and the R7 resistor 12 is a digital signal power supply resistor.
In specific implementation, the intelligent switch controller 1 and the MCU control chip 19 are electrically connected in a bidirectional communication manner.
In particular implementations, the power line carrier chopper circuits are connected by electrical conductors.
The digital signal carried on the 15V power carrier is positioned in a partial waveform on a graph 2, the waveform respectively has a real part demodulation signal and an imaginary part demodulation signal, the digital signal carried on the direct current between 8V and 12V is screened out through chopping of a 10V voltage stabilizing diode, two paths of related value data and amplitude information of the real part and the imaginary part are obtained, the two paths of related value data and the amplitude information are subjected to peak value capturing, decoding and error correcting, frequency difference correcting, signal judging and other steps, and the final binary data are transmitted to the intelligent switch controller 1 or the MCU control chip 19 through universal asynchronous receiving and transmitting to carry out command action.
Fig. 3 shows that in the practical circuit, there are few components, and the technician can flexibly adjust the components and the circuit layout according to the different product structures.
In summary, the following steps: the invention is applied to a communication circuit with two lines passing through direct current carriers, is not limited by troubles caused by wiring or multiple lines, can transmit digital signals back and forth on two power lines without distinguishing the positive polarity and the negative polarity on a direct current power supply, and because the direct current carriers of the two lines are used for supplying power and transmitting signals in low-voltage 15V direct current communication of the two lines, the contact between a human body and high-voltage electricity is isolated, the communication circuit is a convenient, safe and reliable communication mode, can realize long-distance, high-reliability and low-speed signal transmission, and has the advantages of simple structure, few components, low cost, ingenious design and strong practicability.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A circuit for transmitting signals in a direct current power carrier mode, comprising: the circuit comprises an intelligent switch controller, a DB1 bridge stack, a ZD1 voltage regulator tube, a ZD2 voltage regulator tube, a ZD3 voltage regulator tube, an R1 resistor, an R2 resistor, an R3 resistor, an R4 resistor, an R5 resistor, an R6 resistor, an R7 resistor, a Q1 triode, a Q2 triode, a D1 diode, a D2 diode, a D3 diode, a D4 diode and an MCU control chip;
the intelligent switch controller sends a digital signal to an MCU control chip, the digital signal is carried on 15V direct current and is subjected to current limiting through an R1 resistor, the digital signal is transmitted to a D3 diode through WIN1 and is rectified and then subjected to current limiting through an R5 resistor, then the digital signal carried on the direct current and between 8V and 12V is screened out through signal chopping of a ZD3 voltage regulator tube, the signal is amplified through a Q2 triode and is finally transmitted to the MCU control chip, and the MCU control chip receives a command and performs corresponding command action;
the MCU control chip feeds back digital signals to the intelligent switch controller, the MCU control chip sends out digital signals, the digital signals are transmitted to the base electrode of the Q1 triode through the R4 resistor in a current limiting mode, when signals are transmitted to the base electrode of the Q1 triode, the Q1 triode is conducted through generated voltage, and the digital signals are transmitted to the intelligent switch controller through a power supply power line carrying the DB1 bridge stack after passing through the emitting electrode of the Q1 triode and the ZD2 voltage stabilizing tube.
2. The circuit according to claim 1, wherein the circuit comprises: the intelligent switch controller and the MCU control chip both comprise digital signal transceiving ports, the R1 resistor is a circuit current-limiting resistor, the DB1 bridge stack, the D1 diode, the D2 diode, the D3 diode and the D4 diode are circuit rectifying elements, and the circuit rectifying elements enable the transceiving signal ports not to distinguish positive and negative polarities on a direct current power supply circuit.
3. The circuit according to claim 1, wherein the circuit comprises: the ZD1 voltage regulator tube ensures the stability of voltage in a direct current circuit.
4. The circuit according to claim 1, wherein the circuit comprises: the R2 resistor is a discharge resistor, and the R2 resistor pulls the signal port low when no signal is transmitted.
5. The circuit according to claim 1, wherein the circuit comprises: the ZD2 voltage regulator tube is used for carrying digital signals to a carrier circuit, the Q1 triode amplifies output signals, and when the ZD2 voltage regulator tube is cut off, the R3 resistor supplies power to an emitting electrode of the Q1 triode.
6. The circuit according to claim 1, wherein the circuit comprises: the resistor R4 is a digital signal current-limiting resistor, the resistor R5 is a current-limiting resistor at an input signal end, the resistor R6 is a voltage pull-down resistor at the base and source of the Q2 triode, and the resistor R7 is a digital signal power supply resistor.
7. The circuit according to claim 1, wherein the circuit comprises: the intelligent switch controller and the MCU control chip are electrically connected in a bidirectional communication mode.
8. The circuit according to claim 1, wherein the circuit comprises: the power line carrier chopper circuit is connected through an electrical conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011561012.3A CN112532280A (en) | 2020-12-25 | 2020-12-25 | Circuit for transmitting signals in direct-current power carrier mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011561012.3A CN112532280A (en) | 2020-12-25 | 2020-12-25 | Circuit for transmitting signals in direct-current power carrier mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112532280A true CN112532280A (en) | 2021-03-19 |
Family
ID=74976372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011561012.3A Withdrawn CN112532280A (en) | 2020-12-25 | 2020-12-25 | Circuit for transmitting signals in direct-current power carrier mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112532280A (en) |
-
2020
- 2020-12-25 CN CN202011561012.3A patent/CN112532280A/en not_active Withdrawn
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5428640A (en) | Switch circuit for setting and signaling a voltage level | |
| US20150254206A1 (en) | Communication Bus with Zero Power Wake Function | |
| TW342556B (en) | Comparator circuit for decreasing shoot-through current on power switches | |
| CN104596049B (en) | Current loop communication circuit and air-conditioner | |
| JP2002182802A (en) | Terminal adapted to be powered locally and to receive remote power feed via link connecting it to local area network | |
| CN214069927U (en) | Circuit for transmitting signals in direct-current power carrier mode | |
| JP5900812B2 (en) | Closed circuit power line communication system for large loads. | |
| US20230327590A1 (en) | Gear control circuit and system for alternating current motor, switch controller, and electronic device | |
| CN112532280A (en) | Circuit for transmitting signals in direct-current power carrier mode | |
| KR100702351B1 (en) | Communication bus system | |
| CN103220017A (en) | Communication system for distributing electric energy and signal and control method thereof | |
| US4697275A (en) | Receiving circuit for signal transmission systems | |
| CN214704618U (en) | Serial port communication multiplexing circuit | |
| WO2021082748A1 (en) | Vehicle control device and system, and vehicle | |
| CN210807214U (en) | Circuit structure for realizing ultralow standby power consumption by utilizing optical coupler of switching device | |
| CN111988898A (en) | Independent DALI conversion module of adjusting luminance | |
| CN218387249U (en) | Base station power amplifier switch drive circuit | |
| CN213367755U (en) | RS232 signal isolation passive converter | |
| CN217521505U (en) | Two-wire communication and power supply system | |
| CN216848512U (en) | Power supply communication circuit of cooking utensil and cooking utensil | |
| CN210222531U (en) | Eight-channel PSE detection management circuit and PSE management device | |
| CN214125285U (en) | RS485 nonpolarity communication circuit | |
| CN210156319U (en) | Contactor voltage control circuit and contactor system | |
| CN211352073U (en) | Drive module for three-level inverter | |
| CN216599583U (en) | Communication circuit, electronic equipment and communication system |
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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210319 |
|
| WW01 | Invention patent application withdrawn after publication |