CN220732751U - Half-duplex isolation circuit and communication device - Google Patents
Half-duplex isolation circuit and communication device Download PDFInfo
- Publication number
- CN220732751U CN220732751U CN202321958177.3U CN202321958177U CN220732751U CN 220732751 U CN220732751 U CN 220732751U CN 202321958177 U CN202321958177 U CN 202321958177U CN 220732751 U CN220732751 U CN 220732751U
- Authority
- CN
- China
- Prior art keywords
- selection circuit
- isolation device
- circuit
- selection
- direction isolation
- 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
- 238000002955 isolation Methods 0.000 title claims abstract description 247
- 238000004891 communication Methods 0.000 title claims abstract description 44
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 7
- 238000004146 energy storage Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000008054 signal transmission Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000007885 magnetic separation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Bidirectional Digital Transmission (AREA)
Abstract
The application discloses half duplex isolation circuit and communication device includes: a first direction isolation device, a second direction isolation device, a first selection circuit, a second selection circuit, and a selection control circuit; the first selection circuit is respectively connected with the first port of the first direction isolation device and the first port of the second direction isolation device, and the second selection circuit is respectively connected with the second port of the first direction isolation device and the second port of the second direction isolation device, wherein the signal directions of the first direction isolation device and the second direction isolation device are different; the selection control circuit is respectively connected with the first selection circuit and the second selection circuit, and the level signal of the selection control circuit triggers the first selection circuit and the second selection circuit to be respectively communicated with the first direction isolation device, or the level information of the selection circuit triggers the first selection circuit and the second selection circuit to be respectively communicated with the second direction isolation device. The isolation circuit can realize half-duplex communication, and ensures the communication rate of the system.
Description
Technical Field
The present utility model relates to the field of electrical engineering, and in particular, to a half-duplex isolation circuit and a communication device.
Background
Along with the rapid development of the energy storage system, the requirements on various indexes of the energy storage system are gradually increased, wherein the safety requirements of the energy storage system are particularly strict, and higher requirements on electrical intervals and creepage distances are provided. The common isolation method mainly comprises optical isolation, magnetic isolation, capacity isolation and the like, but the existing optical isolation chip basically does not support single-wire half-duplex communication; although the capacity isolation chip can support single-wire half-duplex communication, the communication distance of the capacity isolation chip cannot meet the requirements of the current energy storage system, and the limitation is large; although the magnetic separation chip can realize single-wire half-duplex communication, the isolation distance also meets the safety requirement of the energy storage system, but the magnetic separation chip has the problems of leakage inductance and noise, and the communication speed is relatively low, and the isolation requirement of high-speed communication cannot be met, so that a half-duplex isolation circuit is urgently needed at present to meet the isolation requirement of the energy storage system.
Disclosure of Invention
The utility model provides a half-duplex isolation circuit and a communication device, which are used for isolating the circuit according to the requirement and realizing half-duplex communication so as to ensure the communication rate of a system.
According to an aspect of the present utility model, there is provided a half-duplex isolation circuit, wherein the half-duplex isolation circuit includes: a first direction isolation device, a second direction isolation device, a first selection circuit, a second selection circuit, and a selection control circuit;
the first selection circuit is respectively connected with the first port of the first direction isolation device and the first port of the second direction isolation device, and the second selection circuit is respectively connected with the second port of the first direction isolation device and the second port of the second direction isolation device, wherein the signal directions of the first direction isolation device and the second direction isolation device are different;
the selection circuit is respectively connected with the first selection circuit and the second selection circuit, the level signal of the selection circuit triggers the first selection circuit and the second selection circuit to be respectively communicated with the first direction isolation device, or the level information of the selection circuit triggers the first selection circuit and the second selection circuit to be respectively communicated with the second direction isolation device.
According to another aspect of the present utility model, there is provided a communication apparatus, comprising: the device comprises an input module, an output module and an isolation device module;
the input module comprises a selection control circuit and a first selection circuit; the output module comprises a second selection circuit; the isolation device module comprises a first direction isolation device and a second direction isolation device;
the first selection circuit is respectively connected with the first port of the first direction isolation device and the first port of the second direction isolation device, and the second selection circuit is respectively connected with the second port of the first direction isolation device and the second port of the second direction isolation device, wherein the signal directions of the first direction isolation device and the second direction isolation device are different;
the selection circuit is respectively connected with the first selection circuit and the second selection circuit, the level signal of the selection circuit triggers the first selection circuit and the second selection circuit to be respectively communicated with the first direction isolation device, or the level information of the selection circuit triggers the first selection circuit and the second selection circuit to be respectively communicated with the second direction isolation device.
According to the technical scheme, the half-duplex isolation circuit is formed by the first direction isolation piece, the second direction isolation piece, the first selection circuit, the second selection circuit and the selection control circuit, the first selection circuit is connected to the first port of the first direction isolation device and the first port of the second direction isolation device, the second selection circuit is connected to the second port of the first direction isolation device and the second direction isolation device, the first direction isolation device and the second direction isolation device have different signal directions, the selection control circuit is connected with the first selection circuit and the second selection circuit, and the level signal of the selection control circuit triggers the first selection circuit and the second selection circuit to be communicated with the first direction isolation device or the second direction isolation device, so that half-duplex transmission of signals is achieved, the load degree of the electric isolation circuit is simplified, and the electric isolation cost can be reduced.
It should be understood that the description of this section is not intended to identify key or critical features of the embodiments of the application or to delineate the scope of the application. Other features of the present application will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a half-duplex isolation circuit according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a half-duplex isolation circuit according to an embodiment of the present utility model;
fig. 3 is a schematic diagram of another half-duplex isolation circuit according to an embodiment of the present utility model;
fig. 4 is a schematic diagram of another half-duplex isolation circuit according to an embodiment of the present utility model;
fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present utility model;
fig. 6 is an exemplary diagram of a half-duplex isolation circuit provided in accordance with an embodiment of the present utility model;
fig. 7 is a flowchart of a half-duplex isolation circuit according to an embodiment of the present utility model.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 is a schematic structural diagram of a half-duplex isolation circuit according to an embodiment of the present utility model, where the half-duplex isolation circuit provided in the embodiment of the present application may be suitable for a scenario of isolating electricity in an electrical storage system, and referring to fig. 1, the half-duplex isolation circuit provided in the embodiment of the present application includes: a first direction isolation device 10, a second direction isolation device 11, a first selection circuit 12, a second selection circuit 13, and a selection control circuit 14; the first selection circuit 12 is respectively connected with first ports of the first direction isolation device 10 and the second direction isolation device 11, and the second selection circuit 13 is respectively connected with second ports of the first direction isolation device 10 and the second direction isolation device 11, wherein the signal directions of the first direction isolation device 10 and the second direction isolation device 11 are different; the selection control circuit 14 is connected to the first selection circuit 12 and the second selection circuit 13, respectively, and the level signal of the selection control circuit 14 triggers the first selection circuit 12 and the second selection circuit 13 to communicate with the first direction isolation device 10, respectively, or the level information of the selection circuit 14 triggers the first selection circuit 12 and the second selection circuit 13 to communicate with the second direction isolation device 11, respectively.
The first direction isolation device 10 and the second direction isolation device 11 may be devices for unidirectional isolation of the communication signal, the communication signal is unidirectional transmitted between the first direction isolation device 10 and the second direction isolation device 11, the transmission directions of the first direction isolation device 10 and the second direction isolation device 11 may be different, the first direction isolation device 10 and the second direction isolation device 11 may be the same or different isolation devices, and the isolation devices may include, but are not limited to, an optical isolator device, a capacitive isolator device, a digital isolator device, and the like. The first selection circuit 12 may be connected to the selection circuits of the first direction isolation device 10 and the second isolation device 11 through the first port, the first selection circuit 12 may be connected to the first direction isolation device 10 and the second isolation device 11 in different selection states, that is, the first selection circuit 12 is connected to only the first direction isolation device 10 or the second direction isolation device 11 at the same time, for example, when the first selection circuit 12 includes a single pole double throw switch, the first ports of the first direction isolation device 10 and the second direction isolation device 11 are respectively located on different terminals of the single pole double throw switch, when the first selection circuit 12 is connected to the terminal of the first direction isolation device 10, the first selection circuit 12 controls the communication signal to be transmitted in the circuit of the first direction isolation device 10, and when the first selection circuit 12 is connected to the terminal of the second direction isolation device 11, the first selection circuit 12 controls the communication signal to be transmitted in the circuit of the second direction isolation device 11. Similarly, the second selection circuit 13 may be connected to the first direction isolation device 10 and the second direction isolation device 11, respectively, the second selection circuit 13 may control the communication signal to pass through the first direction isolation device 10 or to pass through the second direction isolation device 11, and it is understood that the second selection circuit 13 and the first selection circuit 12 may be connected to different ports of the first direction isolation device 10 and the second direction isolation device 11, respectively.
Specifically, the selection control circuit 14 may be connected to the first selection circuit 12 and the second selection circuit 13, where the selection control circuit may control the first selection circuit 12 and the second selection circuit 13 through different level signals, the first selection circuit 12 and the second selection circuit 13 are connected to the circuit where the first direction isolation device 10 is located or the second direction isolation device 11, it may be understood that the first selection circuit 12 and the second selection circuit 13 may be simultaneously connected to the first direction isolation device 10 or the second direction isolation device 11 by the selection control circuit 14, so that the first selection circuit 12, the second selection circuit 13 and the first direction isolation device 10 or the second direction isolation device 11 form a closed circuit, and a master control chip may be included in the selection control circuit 14, where the master control chip may trigger the level signals according to a preconfigured rule, so as to implement control of the first selection circuit 12 and the second selection circuit 13 by the selection control circuit 14.
In one exemplary embodiment, referring to fig. 2, the half-duplex isolation circuit may include multiple sets of sub-circuits, each set including a first direction isolation device, a second direction isolation device, a first selection circuit, a second selection circuit, and a selection control circuit.
In some embodiments, the first direction isolation device 10 and the second direction isolation device 11 each include at least one signal isolation device.
In the embodiment of the present application, the first direction isolation device 10 and the second direction isolation device 11 in the half duplex isolation circuit may each be composed of one or more isolation devices. In an exemplary embodiment, referring to fig. 2, the first direction isolation device 10 may include two isolation devices, and the second direction isolation device 11 may include two isolation devices, with the signal transmission direction of each isolation device within the first direction isolation device 10 being the same, and the signal transmission direction of each isolation device within the second direction isolation device 11 being the same.
Further, in accordance with the above-described embodiments, the signal isolation device includes at least one of: an optocoupler and a digital isolation chip.
In the embodiment of the application, the signal isolation device in the half-duplex isolation circuit may be one or more of an optical coupler and a digital isolation chip. It will be appreciated that the first direction isolation device 10 may comprise a plurality of signal isolation devices, each of which may be of a different model or type.
Illustratively, referring to fig. 3, a first direction isolation device 10 is shown, the first direction isolation device 10 may include three signal isolation devices, the signal isolation device 101 may be a capacitive isolation device, the signal isolation device 102 may be an optical coupler, and the signal isolation device 103 may be a digital isolation chip.
In some embodiments, the first selection circuit 12 and the second selection circuit 13 respectively include signal switches, the first switch end of the signal switch of the first selection circuit 12 is connected to the first port of the first direction isolation device 10, the second switch end of the signal switch of the first selection circuit 12 is connected to the first port of the second direction isolation device 11, the first switch end of the signal switch of the second selection circuit 13 is connected to the second port of the first direction isolation device 10, and the second switch end of the signal switch of the second selection circuit 13 is connected to the second port of the second direction isolation device 11.
In this embodiment of the present application, the signal switch may be a device that controls the first selection circuit 12 and the second selection circuit 13 to be turned on and off, and different numbers of signal switches may be respectively disposed in the first selection circuit 12 and the second selection circuit 13, where the signal switch may control the circuit where the first direction isolation device 10 or the second direction isolation device 11 is located to be closed, and the signal switch may receive different level signals of the first selection circuit 12 or the second selection circuit 13, so that the signal switch may be closed and connected to the first direction isolation device 10 or be closed and connected to the second direction isolation device 11. In some application embodiments, the first direction isolation device 10 and the second direction isolation device 11 may be connected to the circuits under the control of the signal switch of the first selection circuit 12 and the signal switch of the second selection circuit 13, respectively, such that the first direction isolation device 10 and the second direction isolation device 11 perform corresponding functions, for example, the first direction isolation device 10 may perform corresponding functions when the first switch end of the signal switch of the first selection circuit 12 and the first switch end of the second selection circuit 12 are connected to the first direction isolation device 10, and the second direction isolation device 11 may perform corresponding functions when the second switch end of the signal switch of the first selection circuit 12 and the second switch end of the signal switch of the second selection circuit 13 are connected to the second direction isolation device 11.
Further, on the basis of the above-mentioned application embodiment, the selection control circuit 14 is respectively connected with the signal switches of the first selection circuit 12 and the second selection circuit 13, the selection control circuit 14 triggers the signal switches of the first selection circuit 12 and the second selection circuit 13 to be respectively connected to the first switch end, or the selection control circuit 14 triggers the signal switches of the first selection circuit 12 and the second selection circuit 13 to be respectively connected to the second switch end.
In this embodiment of the present application, the selection control circuit 14 may be connected to the signal switch, where the selection control circuit 14 may transmit different level signals to the signal switch to change different closing states of the signal switch, so that the signal switches in the first selection circuit 12 and the second selection circuit 13 are connected to the first switch terminal or the second switch terminal, so as to implement that the selection circuit 14 controls the first direction isolation device 10 or the second direction isolation device 11 to be closed to the circuit to perform the corresponding function.
Further, on the basis of the above-described application embodiment, the selection control circuit 14 further includes a signal isolation device, and the selection control circuit 14 is connected to the signal switch of the second selection circuit through the signal isolation device.
In this embodiment of the present application, a signal isolation device may be disposed in the selection control circuit 14, where the signal isolation device may ensure that a level signal in the control circuit 14 is connected in a preset direction, so that the level signal in the control circuit 14 accurately reaches the signal switch of the second selection circuit.
In some embodiments, the first selection circuit 12 and the second selection circuit 13 are respectively disposed on the input module and the output module.
In this embodiment, referring to fig. 4, the half-duplex isolation circuit may be used together with other devices, where the half-duplex isolation circuit may not include the first selection circuit 12 and the second selection circuit 13, and input modules in other devices may include the first selection circuit 12 and output modules may include the second selection circuit 13, and the half-duplex isolation circuit may implement half-duplex transmission of signals through cooperation with the output modules and the output modules of the other devices.
Further, on the basis of the above-mentioned application embodiment, the selection switch is constituted by one of the following modes: an integrated select device architecture, at least two discrete device architectures.
Fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present utility model, where the half-duplex isolation circuit provided in the embodiment of the present application may be suitable for a scenario of isolating electricity in an electrical storage system, and referring to fig. 5, the communication device provided in the embodiment of the present application includes: an input module 20, an output module 21, and an isolation device module 22;
wherein the input module 20 includes a selection control circuit and a first selection circuit; the output module 21 includes a second selection circuit; the isolation device module 22 includes a first direction isolation device and a second direction isolation device; the first selection circuit 12 is respectively connected with first ports of the first direction isolation device 10 and the second direction isolation device 11, and the second selection circuit 13 is respectively connected with second ports of the first direction isolation device 10 and the second direction isolation device 11, wherein the signal directions of the first direction isolation device 10 and the second direction isolation device 11 are different; the selection control circuit 14 is connected to the first selection circuit 12 and the second selection circuit 13, respectively, and the level signal of the selection control circuit 14 triggers the first selection circuit 12 and the second selection circuit 13 to communicate with the first direction isolation device 10, respectively, or the level information of the selection circuit 14 triggers the first selection circuit 12 and the second selection circuit 13 to communicate with the second direction isolation device 11, respectively.
Further, on the basis of the above-mentioned application embodiment, the communication device further includes: the main control unit is connected to the selection control circuit 14 of the input module, and the level signal of the main control unit triggers the first selection circuit 12 and the second selection circuit 13 through the selection control circuit 14.
In this embodiment of the present application, a main control unit may be further disposed in the communication device, where the main control unit may be a system-on-chip, a central processing unit chip, a micro control unit, and the like, and the main control unit may generate different level signals under different situations, where the level signals may be transmitted to the first selection circuit 12 or the second selection circuit 13 through the selection control circuit 14, so that the first direction isolation device 10 or the second direction isolation device 11 in the communication device works.
In an exemplary embodiment, referring to fig. 6, 100 is an input module, 200 is an isolation module, the isolation module 200 is not limited to an isolation manner, the isolation module 200 includes a common isolation manner such as capacitive isolation, optical isolation, and the like, and 300 is an output module. 101. 103 is a direction control pin, and 102, 104, 301, 302 are half-duplex input-output signals. In the embodiment of the application, the half-duplex isolation circuit is added with the channel switching circuit on the basis of the unidirectional isolation chip to select the channel of the unidirectional isolation chip, so that the half-duplex circuit isolation is realized. The peripheral circuit of the embodiment of the application is simple to realize, and the problem of single-wire half-duplex communication can be solved by utilizing unidirectional isolation communication modes such as optical isolation, capacitance isolation and the like. Furthermore, the input module and the output module comprise switch switching circuits, and half-duplex sending and receiving of data can be realized through control of the switch switching circuits. Specifically, referring to fig. 7, the half-duplex isolation circuit operates as follows:
1) The system is powered on to run, the host judges the communication direction according to the communication requirement, and the communication direction can be defaulted to be the direction of receiving data;
2) Determining the communication direction as the data receiving direction, and the host computer switches the switch circuit through the GPIO control 101 and 103 pin level, and receives data in the receiving channels 105 and 107 until the data receiving is completed;
3) Determining the communication direction as the data transmission direction, and the host computer switches the switch switching circuit through the pin levels of the GPIO control 101 and 103 to transmit data in the transmission channels 106 and 108 until the data transmission is completed;
4) And (3) steps of 1), 2) and 3) are cycled, so that the transmission and the acceptance of single-wire half-duplex communication data are realized.
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof.
To provide for interaction with a user, the systems and techniques described here can be implemented at a communications device further having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) through which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.
The computing system may include clients and servers. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service are overcome.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present application may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solutions of the present application are achieved, and the present application is not limited herein.
The above embodiments do not limit the scope of the application. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application are intended to be included within the scope of the present application.
Claims (10)
1. A half-duplex isolation circuit, the half-duplex isolation circuit comprising: a first direction isolation device, a second direction isolation device, a first selection circuit, a second selection circuit, and a selection control circuit;
the first selection circuit is respectively connected with the first port of the first direction isolation device and the first port of the second direction isolation device, and the second selection circuit is respectively connected with the second port of the first direction isolation device and the second port of the second direction isolation device, wherein the signal directions of the first direction isolation device and the second direction isolation device are different;
the selection control circuit is respectively connected with the first selection circuit and the second selection circuit, and the level signal of the selection control circuit triggers the first selection circuit and the second selection circuit to be respectively communicated with the first direction isolation device, or the level information of the selection circuit triggers the first selection circuit and the second selection circuit to be respectively communicated with the second direction isolation device.
2. The half-duplex isolation circuit of claim 1 wherein the first direction isolation device and the second direction isolation device each comprise at least one signal isolation device.
3. The half-duplex isolation circuit of claim 2, wherein the signal isolation device comprises at least one of: an optocoupler and a digital isolation chip.
4. The half-duplex isolation circuit of claim 1, wherein the first and second selection circuits each comprise a signal switch, a first switch end of the signal switch of the first selection circuit being connected to the first port of the first direction isolation device, a second switch end of the signal switch of the first selection circuit being connected to the first port of the second direction isolation device, a first switch end of the signal switch of the second selection circuit being connected to the second port of the first direction isolation device, and a second switch end of the signal switch of the second selection circuit being connected to the second port of the second direction isolation device.
5. The half-duplex isolation circuit of claim 4, wherein the selection control circuit is respectively connected to the signal switches of the first selection circuit and the second selection circuit, the selection control circuit triggers the signal switches of the first selection circuit and the second selection circuit to respectively communicate to the first switch terminal, or the selection control circuit triggers the signal switches of the first selection circuit and the second selection circuit to respectively communicate to the second switch terminal.
6. The half-duplex isolation circuit of claim 4, wherein the selection control circuit comprises a signal isolation device through which the selection control circuit is connected to the signal switch of the second selection circuit.
7. The half-duplex isolation circuit of claim 1, wherein the first selection circuit and the second selection circuit are provided to an input module and an output module, respectively.
8. The half-duplex isolation circuit of claim 4 wherein the signal switch comprises a select switch configured by one of: an integrated select device architecture, at least two discrete device architectures.
9. A communication device, the communication device comprising: the device comprises an input module, an output module and an isolation device module;
the input module comprises a selection control circuit and a first selection circuit; the output module comprises a second selection circuit; the isolation device module comprises a first direction isolation device and a second direction isolation device;
the first selection circuit is respectively connected with the first port of the first direction isolation device and the first port of the second direction isolation device, and the second selection circuit is respectively connected with the second port of the first direction isolation device and the second port of the second direction isolation device, wherein the signal directions of the first direction isolation device and the second direction isolation device are different;
the selection circuit is respectively connected with the first selection circuit and the second selection circuit, the level signal of the selection circuit triggers the first selection circuit and the second selection circuit to be respectively communicated with the first direction isolation device, or the level information of the selection circuit triggers the first selection circuit and the second selection circuit to be respectively communicated with the second direction isolation device.
10. The communication device of claim 9, wherein the communication device further comprises: the main control unit is connected to the selection control circuit of the input module, and the level signal of the main control unit triggers the first selection circuit and the second selection circuit through the selection control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321958177.3U CN220732751U (en) | 2023-07-21 | 2023-07-21 | Half-duplex isolation circuit and communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321958177.3U CN220732751U (en) | 2023-07-21 | 2023-07-21 | Half-duplex isolation circuit and communication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220732751U true CN220732751U (en) | 2024-04-05 |
Family
ID=90501707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321958177.3U Active CN220732751U (en) | 2023-07-21 | 2023-07-21 | Half-duplex isolation circuit and communication device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220732751U (en) |
-
2023
- 2023-07-21 CN CN202321958177.3U patent/CN220732751U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10198396B2 (en) | Master control board that switches transmission channel to local commissioning serial port of the master control board | |
| Feng et al. | Dual‐band balanced‐to‐unbalanced filtering power divider by coupled ring resonators | |
| CN103199617B (en) | Representing method of corresponding relationship between virtual circuits and physical ports in secondary circuit graph | |
| CN106444345B (en) | Time measuring circuit, method and measuring device | |
| CN207924656U (en) | Usb interface multiplex circuit | |
| EP4247103A1 (en) | Method and apparatus for determining satellite backhaul information | |
| CN105005545A (en) | Line card serial port switching device and line card serial port switching method | |
| CN220732751U (en) | Half-duplex isolation circuit and communication device | |
| CN114742000A (en) | SoC chip verification system, verification method and device based on FPGA cluster | |
| CN103049410A (en) | Server and serial port switching circuit thereof | |
| CN110162287B (en) | Method and device for realizing VGA display of PCIE Box | |
| CN217562026U (en) | Serial port adapter plate and system of hardware simulation accelerator | |
| CN104618273B (en) | The control system and channel resolver of a kind of optical fiber switch | |
| CN104216809A (en) | Signal testing device | |
| CN103118143B (en) | Multiplex circuit of serial interface and Ethernet interface | |
| CN109460379A (en) | A kind of method and switching device of serial ports selection | |
| CN109408292A (en) | A kind of reset circuit and electronic equipment | |
| CN108089952B (en) | Automatic change test equipment | |
| US10277040B2 (en) | Communication system for a battery-management system for a battery, and method for operating at least one predefined coupling network of such a communications system | |
| CN110850779A (en) | Circuit of CAN bus interface expansion interface | |
| US20230081215A1 (en) | Connector and electronic device using the same | |
| US20230081278A1 (en) | Connector subassembly and electronic device using the same | |
| CN114780468B (en) | Server carrier plate, data communication method, server main board, system and medium | |
| CN115189772A (en) | Bus communication system, method and storage medium | |
| CN215120760U (en) | Asynchronous communication circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |