Single-core coaxial interface communication circuit and power supply device control system of nuclear fusion device

Abstract

The present invention relates to the field of power electronics technology and discloses a single-core coaxial interface communication circuit, including: a control module, having a signal sending end and a signal receiving end, the signal sending end and the signal receiving end are physically connected to the single-core coaxial interface at the same time; the signal sending end is used to send a first signal to the single-core coaxial interface, and the signal receiving end is used to receive a second signal sent by the single-core coaxial interface; the signal receiving end is provided with a first signal isolation module, and the first signal isolation module disconnects the communication connection between the signal receiving end and the single-core coaxial interface under the trigger of the first signal; the signal sending end is provided with a second signal isolation module, and the second signal isolation module blocks the second signal from being transmitted to the signal sending end; the above implementation method can achieve half-duplex communication of the control module without additionally occupying the IO ports of the control module and without additionally setting software to switch the communication method, and can prevent the backflow of the first signal or the backflow of the second signal.

Description

Technical Field

[0001] The present invention relates to the technical field of signal transmission, and in particular to a single-core coaxial interface communication circuit and a power supply device control system for a nuclear fusion device. Background Art

[0002] Single-core coaxial interface communication is a common radio frequency cable interface, which is widely used in fields such as video, audio, and wireless communication. It refers to a structure where a coaxial cable has only one inner core wire, which is wrapped with a metal shielding layer and an insulating layer outside. Common single-core coaxial interface communications such as BNC, RCA, SMA, MMCX, etc. can meet the needs of different fields.

[0003] Using single-core coaxial interface communication usually can only perform one-way communication. When two-way communication is required, one way is to use a dual interface and a dual signal processing circuit to achieve full-duplex communication. Although this method enhances the function, the cost will also increase significantly, and the corresponding circuit board area increases. In some usage scenarios where high-speed two-way communication is not required, full-duplex communication is redundant to a certain extent.

[0004] Another way is to use a controller to switch between receiving and sending to achieve half-duplex communication. In this implementation method, additional IO ports need to be set for communication. This will occupy the limited computing resources of the controller, especially for microcontrollers such as MCUs where the proportion of IO port resources and computing resources is relatively tight. Therefore, how to reasonably and economically achieve two-way communication of a single-core coaxial interface has become a technical problem to be solved urgently. Summary of the Invention

[0005] In view of this, the present invention provides a single-core coaxial interface communication circuit and a power supply device control system for a nuclear fusion device to solve the technical problem of how to reasonably and economically achieve two-way communication of a single-core coaxial interface in the prior art.

[0006] According to a second aspect, the single-core coaxial interface communication circuit provided in the present application includes: a control module, having a signal sending end and a signal receiving end, the signal sending end and the signal receiving end are physically connected to the single-core coaxial interface at the same time; the signal sending end is used to send a first signal to the single-core coaxial interface, and the signal receiving end is used to receive a second signal sent by the single-core coaxial interface; a first signal isolation module is provided at the signal receiving end, and the first signal isolation module disconnects the communication connection between the signal receiving end and the single-core coaxial interface under the trigger of the first signal; a second signal isolation module is provided at the signal sending end, and the second signal isolation module blocks the transmission of the second signal to the signal sending end.

[0007] As an exemplary embodiment, the first signal isolation module includes a first controllable switch. The control end of the first controllable switch is connected to the signal sending end. One end of the first controllable switch is connected to the signal receiving end, and the other end is grounded. The second signal isolation module includes a first diode. The anode of the first diode is connected to the signal sending end, and the cathode of the first diode is connected to the single-core coaxial interface.

[0008] As an exemplary embodiment, the first controllable switch includes an N-type semiconductor switch. The control end of the N-type semiconductor is connected to the signal sending end. The input end of the N-type semiconductor is connected to the signal receiving end, and the output end of the N-type semiconductor is grounded.

[0009] As an exemplary embodiment, the first signal isolation module includes a second controllable switch, which is connected in series between the signal receiving end and the single-core coaxial interface, and the control end of the second controllable switch is connected to the signal sending end. The second signal isolation module includes a second diode. The cathode of the second diode is connected to the signal sending end, and the anode of the second diode is connected to the single-core coaxial interface.

[0010] As an exemplary embodiment, the first controllable switch includes an N-type semiconductor switch. The control end of the N-type semiconductor is connected to the signal sending end. The output end of the N-type semiconductor is connected to the signal receiving end, and the input end of the N-type semiconductor is connected to the single-core coaxial interface.

[0011] As an exemplary embodiment, the single-core coaxial interface communication circuit further includes: a first follower, which is connected between the signal sending end and the second signal isolation module.

[0012] As an exemplary embodiment, the single-core coaxial interface communication circuit further includes a second follower, which is connected between the signal receiving end and the single-core coaxial interface.

[0013] As an exemplary embodiment, the single-core coaxial interface communication circuit further includes a high-voltage isolation module, which is connected between the control module and the single-core coaxial interface. The high-voltage isolation module is used to achieve high isolation withstand voltage to protect the control module from being damaged by high voltage.

[0014] According to a second aspect, an embodiment of the present application further provides a power supply device control system for a nuclear fusion device, including: the single-core coaxial interface communication circuit according to any one of the above first aspects and a power supply device control module connected to the single-core coaxial interface. Among them, the signal sending end sends a first signal to the power supply device control module through the single-core coaxial interface, and the power supply device control module feeds back a second signal to the signal receiving end through the single-core coaxial interface.

[0015] The present invention provides a single-core coaxial interface communication circuit, including: a control module, having a signal sending end and a signal receiving end, wherein the signal sending end and the signal receiving end are physically connected to the single-core coaxial interface at the same time; the signal sending end is used to send a first signal to the single-core coaxial interface, and the signal receiving end is used to receive a second signal sent by the single-core coaxial interface; a first signal isolation module is arranged at the signal receiving end, and the first signal isolation module disconnects the communication connection between the signal receiving end and the single-core coaxial interface under the trigger of the first signal; a second signal isolation module is arranged at the signal sending end, and the second signal isolation module blocks the second signal from being transmitted to the signal sending end; in the above implementation manner, on the one hand, when the signal sending end sends a signal, the first isolation module can use the first signal sent by the signal sending end to disconnect the connection of the signal receiving end, so that the first signal is only transmitted to the single-core coaxial interface. At the same time, when the single-core coaxial interface sends a second signal, the second signal isolation module can cut off the transmission of the second signal to the signal sending end, so that the second signal is only transmitted to the signal receiving end. Therefore, it is possible to achieve more economical and simpler signal half-duplex communication without additionally adding a dual interface and a dual signal processing circuit, without additionally occupying the IO ports of the control module, and without additionally setting software to switch the communication mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a modular schematic diagram of a single-core coaxial interface communication circuit according to an embodiment of the present application;

[0018] Figure 2 is a modular schematic diagram of the first embodiment of a single-core coaxial interface communication circuit according to an embodiment of the present application;

[0019] Figure 3 is a circuit principle schematic diagram of a signal isolation module in the first embodiment of a single-core coaxial interface communication circuit according to an embodiment of the present application;

[0020] Figure 4 is a modular schematic diagram of the second embodiment of a single-core coaxial interface communication circuit according to an embodiment of the present application;

[0021] Figure 5It is a schematic circuit diagram of a signal isolation module in the second implementation manner of the single-core coaxial interface communication circuit according to an embodiment of the present application;

[0022] Figure 6 It is a modular schematic diagram of setting a first follower in the single-core coaxial interface communication circuit according to an embodiment of the present application;

[0023] Figure 7 It is a modular schematic diagram of setting a second follower in the single-core coaxial interface communication circuit according to an embodiment of the present application;

[0024] Figure 8 It is a modular schematic diagram of setting a high-voltage isolation module in the single-core coaxial interface communication circuit according to an embodiment of the present application;

[0025] Figure 9 It is a simplified schematic circuit diagram of the first implementation manner of the single-core coaxial interface communication circuit according to an embodiment of the present application;

[0026] Figure 10 It is a simplified schematic circuit diagram of the second implementation manner of the single-core coaxial interface communication circuit according to an embodiment of the present application;

[0027] Figure 11 It is a schematic diagram of a power supply device control system of a nuclear fusion device according to an embodiment of the present application.

[0028] Reference numerals:

[0029] 100, control module; 101, signal sending end; 102, signal receiving end; 21, first signal isolation module; 211, first controllable switch; 2111, first NMOS transistor; 212, second controllable switch; 2121, second NMOS transistor; 22, second signal isolation module; 221, first diode; 222, second diode; 300, single-core coaxial interface; 40, first follower; 50, second follower; 60, high-voltage isolation module; 400, power supply device control module. Detailed implementation manners

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] According to an embodiment of the present invention, a single-core coaxial interface communication circuit is provided; Figure 1is a modular schematic diagram of a single-core coaxial interface communication circuit according to an embodiment of the present application, as Figure 1 shown, including: a control module 100, having a signal sending end 101 and a signal receiving end 102, the signal sending end 101 and the signal receiving end 102 are physically connected to the single-core coaxial interface 300 at the same time; the signal sending end 101 is used to send a first signal to the single-core coaxial interface 300, and the signal receiving end 102 is used to receive a second signal sent by the single-core coaxial interface 300; the signal receiving end 102 is provided with a first signal isolation module 21, and the first signal isolation module 21 disconnects the communication connection between the signal receiving end 102 and the single-core coaxial interface 300 under the trigger of the first signal; the signal sending end 101 is provided with a second signal isolation module 22, and the second signal isolation module 22 blocks the transmission of the second signal to the signal sending end 101.

[0032] In this embodiment, the signal receiving end 102 is provided with a first signal isolation module 21. When the signal sending end 101 sends a first signal, the first signal isolation module 21 disconnects the communication connection between the signal receiving end 102 and the single-core coaxial interface 300 under the trigger of the first signal, so that the signal receiving end 102 is in a disconnected state when the signal sending end 101 is working, so as to avoid the first signal from being back-fed to the signal receiving end 102 when the signal sending end 101 sends the first signal, and make the first signal only transmitted to the single-core coaxial interface 300; the signal sending end 101 is provided with a second signal isolation module 22. When the signal receiving end 102 receives the second signal, the second signal isolation module 22 blocks the connection between the signal sending end 101 and the single-core coaxial interface 300, so that the signal receiving end 102 needs to be in a disconnected state when receiving the signal, so as to avoid the second signal from being back-fed to the signal sending end 101 when the signal receiving end 102 receives the second signal; in the above implementation manner, on the one hand, the first isolation module can use the first signal sent by the signal sending end 101 to disconnect the connection of the signal receiving end 102 when the signal sending end 101 sends a signal, so that the first signal is only transmitted to the single-core coaxial interface 300; at the same time, when the single-core coaxial interface 300 sends the second signal, the second signal isolation module 22 can block the transmission of the second signal to the signal sending end 101, so that the second signal is only transmitted to the signal receiving end 102; therefore, it is possible to realize two-way signal transmission more economically and simply without additionally adding a dual interface and a dual signal processing circuit, without additionally occupying the IO port of the control module 100, and without additionally setting a software switching communication method.

[0033] As a possible implementation, the control module 100 may be a control module such as a single-chip microcomputer, a CPU, an MPU, a DSP, an FPGA, etc. In this embodiment, a single-chip microcomputer is taken as an example for illustration. Specifically, the control module 100 may be a 51 series single-chip microcomputer or an STM series single-chip microcomputer; the signal sending end 101 may be the TX port of the single-chip microcomputer, and the first signal may be the TX signal sent by the single-chip microcomputer through the TX port; the signal receiving end 102 may be the RX port of the single-chip microcomputer, and the second signal may be the RX signal received by the single-chip microcomputer through the RX port.

[0034] As an exemplary embodiment, the signal sending end 101, the signal receiving end 102, and the single-core coaxial interface 300 are in an idle state at a low level and are active at a high level.

[0035] See Figure 2 As shown, the first signal isolation module 21 includes a first controllable switch 211. The control end of the first controllable switch 211 is connected to the signal sending end 101. One end of the first controllable switch 211 is connected to the signal receiving end 102, and the other end is grounded; the second signal isolation module 22 includes a first diode 221. The anode of the first diode 221 is connected to the signal sending end 101, and the cathode of the first diode 221 is connected to the single-core coaxial interface 300.

[0036] Among them, the first controllable switch 211 may include a semiconductor type controllable switch or a relay switch. Exemplarily, the solution of this embodiment is described by taking the first controllable switch 211 as a semiconductor type controllable switch as an example; specifically, the semiconductor type controllable switch is connected in series between the signal receiving end 102 and the ground, and the control end of the semiconductor type controllable switch is connected to the signal sending end 101; the control end of the semiconductor type controllable switch conducts the single-core coaxial interface 300 to the ground under the trigger of the first signal sent by the signal sending end 101, so that the first signal flows into the ground to prevent the first signal from affecting the signal receiving end 102. When receiving the second signal, the first diode 221 can prevent the second signal from being back-fed to the signal sending end 101.

[0037] In this embodiment, the first controllable switch 211 includes an N-type semiconductor switch. In this embodiment, the N-type semiconductor switch may include a semiconductor switch such as an N-type triode, an N-channel IGBT, an NMOS transistor, etc. that is turned on by a high level trigger.

[0038] In this embodiment, the first controllable switch 211 is described by taking an NMOS transistor as an example: As Figure 3As shown, the first controllable switch 211 takes the first NMOS transistor 2111 as an example. The gate of the first NMOS transistor 2111 is connected to the signal sending end 101, the drain is connected to the signal receiving end 102, and the source is grounded; the first NMOS transistor 2111 is in an off state when a low-level signal is received at the gate and in an on state when a high-level signal is received; the cathode of the first diode 221 is connected to the single-core coaxial port 300.

[0039] When the signal sending end 101 outputs a high level, that is, when sending the first signal, it triggers the first NMOS transistor 2111 to conduct. When the first signal flows to the signal receiving end after passing through the first diode 221 and the single-core coaxial interface 300, the first signal will leak into the ground through the first NMOS transistor 2111 to remove the interference of the first signal on the signal receiving end 102.

[0040] When the single-core coaxial interface 300 receives a high level, that is, when the single-core coaxial interface 300 outputs and sends the second signal to the signal receiving end, due to the one-way conductivity of the first diode 221, the second signal is cut off from being fed back to the signal sending end 101. And, since the signal sending end 101 is in an idle state and outputs a low level, the first NMOS transistor 2111 is in an off state, and the second signal can safely enter the signal receiving end 102. In this way, half-duplex communication is achieved.

[0041] Therefore, through the above implementation manner, half-duplex communication between the control module 100 and the single-core coaxial interface 300 can be achieved without additionally occupying the IO port of the control module 100 and without additionally setting software to switch the communication mode.

[0042] As another exemplary embodiment, the signal sending end 101, the signal receiving end 102, and the single-core coaxial interface 300 are in an idle state at a high level and low level is valid.

[0043] As an exemplary embodiment, as Figure 4 shown, the first signal isolation module 21 includes a second controllable switch 212, which is serially connected between the signal receiving end 102 and the single-core coaxial interface 300, and the control end of the second controllable switch 212 is connected to the signal sending end 101; the second signal isolation module 22 includes a second diode 222; the cathode of the second diode 222 is connected to the signal sending end 101, and the anode of the second diode 222 is connected to the single-core coaxial interface 300.

[0044] In this embodiment, the second controllable switch 212 may include a semiconductor type controllable switch or a relay switch. Exemplarily, the solution of this embodiment is described by taking the second controllable switch 212 as a semiconductor type controllable switch; specifically, the semiconductor type controllable switch is connected in series between the signal receiving end 102 and the single-core coaxial interface 300, and the control end of the semiconductor type controllable switch is connected to the signal sending end 101; the control end of the semiconductor type controllable switch is disconnected under the trigger of the first signal sent by the signal sending end 101 to disconnect the connection between the signal receiving end 102 and the single-core coaxial interface 300; when receiving the second signal, the second diode 222 can prevent the second signal from being back-fed to the signal sending end 101.

[0045] As an exemplary embodiment, the second controllable switch 212 includes an N-type semiconductor switch. In this embodiment, the N-type semiconductor switch may include semiconductor switches such as an N-type triode, an N-channel IGBT, and an NMOS transistor that are turned on by a high-level trigger.

[0046] Exemplarily, as Figure 5 shown, the technical solution of this embodiment is described by taking the N-type semiconductor switch as an NMOS transistor; specifically, the gate of the second NMOS transistor 2121 is connected to the signal sending end 101, and the source and drain of the second NMOS transistor 2121 are connected in series between the signal receiving end 102 and the single-core coaxial interface 300; the gate of the second NMOS transistor 2121 disconnects the connection between the source and the drain under the trigger of the first signal sent by the signal sending end 101 to disconnect the connection between the signal receiving end 102 and the single-core coaxial interface 300.

[0047] When the signal sending end 101 sends a low level, that is, the first signal, to the single-core coaxial interface 300, the cathode of the second diode 222 is connected to the signal sending end 101. When the signal sending end 101 outputs a low level, the signal sending end 101 pulls down the level of the single-core coaxial interface 300, and the single-core coaxial interface 300 is in a low-level state. At the same time, the gate of the second NMOS transistor 2121 is connected to the signal sending end 101, and the second NMOS transistor 2121 is disconnected under the trigger of the low level, and the signal receiving end 102 is disconnected from the single-core coaxial interface 300. Therefore, the low level output by the signal sending end 101 cannot be transmitted to the signal receiving end 102 through the single-core coaxial interface 300.

[0048] When the signal transmitting end 101 outputs a high level, that is, in the idle state, the second diode 222 is in the cut-off state, and the signal receiving end 102 is also in the high-level state. Although the second NMOS transistor 2121 is in the conducting state, the signal receiving end 102 is also in the high-level state. Therefore, the level state at the signal receiving end 102 does not change, which is equivalent to that no matter what level signal the signal transmitting end 101 transmits, the signal receiving end 102 is in the high-level state, but the level state at the signal transmitting end 101 is consistent with the level state at the single-core coaxial interface 300.

[0049] When the single-core coaxial interface 300 sends a signal to the signal receiving end 102, the signal transmitting end 101 is in the idle state and outputs a high level. The second NMOS transistor 2121 is always in the conducting state. At the same time, the cathode of the second diode 222 is at a high level, and the anode of the second diode 222 is at a low level. The second diode 222 can prevent the second signal sent by the single-core coaxial interface 300 from flowing back to the signal transmitting end 101, and the signal transmitting end 101 is always in the high-level idle state.

[0050] Therefore, through the above-described embodiments, the two-way signal transmission between the control module 100 and the single-core coaxial interface 300 can be achieved without additionally occupying the IO ports of the control module 100 and without additionally setting a software switching communication method.

[0051] As an exemplary embodiment, as Figure 7 shown, the single-core coaxial interface communication circuit further includes: a first follower 40 connected between the signal transmitting end 101 and the second signal isolation module 22.

[0052] In this embodiment, the first follower 40 can be an operational amplifier or a voltage amplifier, and the first follower 40 is used to improve the signal loading capacity or improve the signal sensitivity.

[0053] As an exemplary embodiment, as Figure 8 shown, the single-core coaxial interface communication circuit further includes a second follower 50 connected between the signal receiving end 102 and the single-core coaxial interface 300.

[0054] In this embodiment, the second follower 50 can be an operational amplifier or a voltage amplifier, and the first follower 40 is used to improve the signal loading capacity or improve the signal sensitivity.

[0055] As an exemplary embodiment, as Figure 9As shown, the single-core coaxial interface communication circuit further includes a high-voltage isolation module 60, and the high-voltage isolation module 60 is connected between the control module 100 and the single-core coaxial interface 300; the high-voltage isolation module 60 is used to achieve high isolation withstand voltage to protect the control module 100 from being damaged by high voltage.

[0056] In this embodiment, the high-voltage isolation module 60 may include an opto-isolation module and an inductive isolation module.

[0057] As a specific embodiment of the present application, refer to Figure 9 As shown, the control module 100 has a signal sending end 101 and a signal receiving end 102. The signal sending end 101 and the signal receiving end 102 are physically connected to the single-core coaxial interface 300 through the high-voltage isolation module 60 at the same time; the signal sending end 101 is used to send a first signal to the single-core coaxial interface 300, and the signal receiving end 102 is used to receive a second signal sent by the single-core coaxial interface 300; a first diode 221 is arranged between the signal sending end 101 and the single-core coaxial interface. The anode of the first diode 221 is sequentially connected to the signal sending end 101 through a first follower 40 and the high-voltage isolation module 60, and the cathode of the first diode 221 is connected to the single-core coaxial interface 300; a first NMOS transistor 2111 is arranged at the signal receiving end 102. The gate of the first NMOS transistor 2111 is connected to the signal sending end 101, the drain is connected to the input end of a second follower 50, the output end of the second follower 50 is connected to the signal receiving end 102, and the source of the first NMOS transistor 2111 is grounded. The single-core coaxial interface 300 is connected to the drain of the first NMOS transistor 2111 and the input end of the second follower 50 through the high-voltage isolation module 60.

[0058] When the signal sending end 101 outputs a high level, that is, when sending the first signal, it triggers the first NMOS transistor 2111 to conduct. When the first signal flows to the signal receiving end after passing through the first diode 221 and the single-core coaxial interface 300, the first signal will leak into the ground through the first NMOS transistor 2111 to remove the interference of the first signal on the signal receiving end 102.

[0059] When the single-core coaxial interface 300 receives a high level, that is, when the single-core coaxial interface 300 outputs and sends a second signal to the signal receiving end, due to the one-way conductivity of the first diode 221, the second signal is blocked from being fed back to the signal sending end 101. Moreover, since the signal sending end 101 is in an idle state, when the signal sending end 101 outputs a low level, the first NMOS transistor 2111 is in an off state. With the first NMOS transistor 2111 in an off state, the second signal can safely enter the signal receiving end 102. In this way, half-duplex communication is achieved.

[0060] As another specific embodiment of the present application, as Figure 10As shown in the figure, the single-core coaxial interface communication circuit includes: a control module 100, which has a signal sending end 101 and a signal receiving end 102. The signal sending end 101 and the signal receiving end 102 are physically connected to the single-core coaxial interface 300 through a high-voltage isolation module 60 at the same time. The signal sending end 101 is used to send a first signal to the single-core coaxial interface 300, and the signal receiving end 102 is used to receive a second signal sent by the single-core coaxial interface 300. A second diode 222 is provided between the signal sending end 101 and the single-core coaxial interface 300. The cathode of the second diode 222 is connected to the signal sending end 101 through a first follower 40 and a high-voltage isolation module 60 in sequence, and the anode of the second diode 222 is connected to the single-core coaxial interface 300. A second NMOS transistor 2121 is provided at the signal receiving end 102. The gate of the second NMOS transistor 2121 is connected to the signal sending end 101. One end of the source is connected in series to the signal receiving end 102 through a second follower 50, and one end of the drain is connected to the high-voltage isolation module 60. The second NMOS transistor 2121 disconnects the connection between the source and the drain when the signal sending end 101 sends the first signal.

[0061] In this embodiment, when the signal sending end 101 sends a first signal to the single-core coaxial interface 300, the cathode of the second diode 222 is connected to the signal sending end 101. When the signal sending end 101 outputs a low level, the signal sending end 101 pulls down the level of the single-core coaxial interface 300, and the single-core coaxial interface 300 is in a low-level state. Moreover, the second NMOS transistor 2121 is turned off, and the signal receiving end 102 is disconnected from the single-core coaxial interface 300. Therefore, the low level output by the signal sending end 101 cannot be transmitted to the signal receiving end 102 through the single-core coaxial interface 300. When the signal sending end 101 outputs a high level, although the second diode 222 is in a cut-off state, the signal receiving end 102 is also in a high-level state, and the single-core coaxial interface 300 is in a high-level state. Therefore, the level state at the signal receiving end 102 does not change, which is equivalent to that no matter what level signal the signal sending end 101 sends, the signal receiving end 102 is in a high-level state, but the level state at the single-core coaxial interface 300 is consistent with the level state of the signal sending end 101.

[0062] When the single - core coaxial interface 300 sends a second signal to the signal receiving end 102 and the signal receiving end 102 receives the second signal, when the single - core coaxial interface 300 outputs a high level, the level state at the signal sending end 101 is the same as that of the single - core coaxial interface 300, outputting a high level. At this time, the second NMOS transistor 2121 is always in the on state; when the single - core coaxial interface 300 outputs a low level, due to the unidirectional conductivity of the second diode 222, the signal sending end 101 is still in the high - level state. At this time, the second NMOS transistor 2121 is always in the on state, and the signal receiving end 102 is pulled low by the single - core coaxial interface 300 and is in the low - level state; therefore, the level state at the signal sending end 101 does not change, which is equivalent to that no matter what level signal the single - core coaxial interface 300 sends, the signal sending end 101 is in the high - level state, but the level state at the single - core coaxial interface 300 is the same as the level state at the signal receiving end 102.

[0063] The embodiment of the present application also provides a power supply device control system for a nuclear fusion device, as Figure 11 shown. The control system may include a single - core coaxial interface communication circuit and a power supply device control module 400 connected to the single - core coaxial interface. Among them, the signal sending end 101 sends a first signal to the power supply device control module 400 through the single - core coaxial interface 300, and the power supply device control module 400 feeds back a second signal to the signal receiving end 102 through the single - core coaxial interface 300.

[0064] As an exemplary embodiment, the power supply device of the nuclear fusion device may be a capacitor energy storage module. Through the single - core coaxial interface communication circuit in the above - mentioned embodiment, the nuclear fusion device can output a first signal to the power supply device control module as a trigger signal, that is, output a trigger signal to the control module for controlling the discharge of the capacitor energy storage module. The capacitor energy storage module and its power supply control module can send a second signal to the signal receiving end through the single - core coaxial interface as a feedback signal to ensure that the trigger is correct. Therefore, in this embodiment, in view that only half - duplex communication is required between the control module and the power supply device of the nuclear fusion device in this embodiment to meet the requirements, therefore, through the single - core coaxial interface communication circuit in the above - mentioned embodiment, without occupying additional IO ports and without additionally setting a software - switched communication method, half - duplex communication between the control module and the power supply device of the nuclear fusion device is achieved.

[0065] See Figure 11 shown. The power supply device control module 400 is communicatively connected to the control module 100 through the single - core coaxial interface 300. Since the power supply device, that is, when the capacitor energy storage module discharges, it will generate a huge back - rush voltage and the complex electromagnetic environment of the nuclear fusion device itself, the voltage of the second signal may be relatively high. Therefore, it can be through Figure 11The first diode 221 in it blocks the received second signal from flowing back into the signal sending end 101 and damaging the control module 100. Additionally, the high-voltage isolation module 60 can further isolate the huge backrush voltage generated when the capacitor energy storage module discharges and the complex electromagnetic environment of the nuclear fusion device itself.

[0066] Therefore, through the above-described embodiments, two-way signal transmission between the control module 100 and the single-core coaxial interface 300 can be achieved without additionally occupying the IO ports of the control module 100 and without the need to additionally set up a software switching communication method.

[0067] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and details are not repeated herein.

[0068] The serial numbers of the embodiments of the present application above are only for description and do not represent the superiority or inferiority of the embodiments.

[0069] In the above embodiments of the present application, the descriptions of each embodiment have their own emphases. For parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0070] In several embodiments provided by the present application, it should be understood that the disclosed client can be implemented in other ways. Among them, the device embodiments described above are only illustrative. For example, the division of units is only a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of units or modules can be in electrical or other forms.

[0071] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution provided in this embodiment.

[0072] In addition, in each embodiment of the present application, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above integrated units can be implemented in the form of hardware or in the form of software functional units.

[0073] The above are only the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A single-core coaxial interface communication circuit, characterized in that, Power supply device control system applied to a nuclear fusion device. In the power supply device control system, the power supply device control module communicates through a single-core coaxial interface communication circuit, and the single-core coaxial interface communication circuit includes: A control module having a signal sending end and a signal receiving end. The signal sending end and the signal receiving end are both physically connected to the single-core coaxial interface. The signal sending end is used to send a first signal to the single-core coaxial interface, and the signal receiving end is used to receive a second signal sent by the single-core coaxial interface. A first signal isolation module is arranged between the signal receiving end and the single-core coaxial interface. The first signal isolation module disconnects the communication connection between the signal receiving end and the single-core coaxial interface under the trigger of the first signal. A second signal isolation module is arranged between the signal sending end and the single-core coaxial interface. The second signal isolation module blocks the transmission of the second signal to the signal sending end. The first signal isolation module includes a first controllable switch. The control end of the first controllable switch is connected to the signal sending end. One end of the first controllable switch is connected to the signal receiving end, and the other end is grounded. The second signal isolation module includes a first diode. The anode of the first diode is connected to the signal sending end, and the cathode of the first diode is connected to the single-core coaxial interface.

2. The single-core coaxial interface communication circuit according to claim 1, wherein The first controllable switch includes an N-type semiconductor switch. The control end of the N-type semiconductor is connected to the signal sending end. The input end of the N-type semiconductor is connected to the signal receiving end, and the output end of the N-type semiconductor is grounded.

3. The single-core coaxial interface communication circuit according to claim 1, characterized in that, The first controllable switch includes an N-type semiconductor switch. The control end of the N-type semiconductor is connected to the signal sending end. The output end of the N-type semiconductor is connected to the signal receiving end, and the input end of the N-type semiconductor is connected to the single-core coaxial interface.

4. The single-core coaxial interface communication circuit according to claim 1, characterized in that, It further includes: A first follower connected between the signal sending end and the second signal isolation module.

5. The single-core coaxial interface communication circuit according to claim 1, characterized in that, It further includes: A second follower connected between the signal receiving end and the single-core coaxial interface.

6. The single-core coaxial interface communication circuit according to claim 1, characterized in that, It further includes: A high-voltage isolation module connected between the control module and the single-core coaxial interface for high-voltage isolation.

7. A single-core coaxial interface communication circuit, characterized in that, Power supply device control system applied to a nuclear fusion device. In the power supply device control system, the power supply device control module communicates through a single-core coaxial interface communication circuit, and the single-core coaxial interface communication circuit includes: A control module having a signal sending end and a signal receiving end. The signal sending end and the signal receiving end are both physically connected to the single-core coaxial interface. The signal sending end is used to send a first signal to the single-core coaxial interface, and the signal receiving end is used to receive a second signal sent by the single-core coaxial interface. A first signal isolation module is arranged between the signal receiving end and the single-core coaxial interface. The first signal isolation module disconnects the communication connection between the signal receiving end and the single-core coaxial interface under the trigger of the first signal. A second signal isolation module is provided between the signal sending end and the single-core coaxial interface, and the second signal isolation module cuts off the transmission of the second signal to the signal sending end; The first signal isolation module includes a second controllable switch, which is connected in series between the signal receiving end and the single-core coaxial interface, and the control end of the second controllable switch is connected to the signal sending end; The second signal isolation module includes a second diode; the cathode of the second diode is connected to the signal sending end, and the anode of the second diode is connected to the single-core coaxial interface.

8. The single-core coaxial interface communication circuit according to claim 7, wherein, The second controllable switch includes a semiconductor type controllable switch or a relay switch.

9. The single-core coaxial interface communication circuit according to claim 8, characterized in that, The semiconductor type controllable switch includes a second NMOS transistor, the gate of the second NMOS transistor is connected to the signal sending end, and the source and drain of the second NMOS transistor are connected in series between the signal receiving end and the single-core coaxial interface.

10. A power supply device control system for a nuclear fusion device, characterized in that, Comprising: The single-core coaxial interface communication circuit according to any one of claims 1 to 9 and a power supply device control module connected to the single-core coaxial interface, wherein the signal sending end sends a first signal to the power supply device control module through the single-core coaxial interface, and the power supply device control module feeds back a second signal to the signal receiving end through the single-core coaxial interface.

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