High-performance common-mode suppressor made of amorphous material and used for CAN FD

Abstract

The invention provides a high-performance common-mode suppressor made of an amorphous material and used for CAN FD, and relates to the technical field of electromagnetic compatibility, the common-mode suppressor comprises a magnetic core, a coil, an insulating layer and a shielding shell, the magnetic core is a magnetic field folding resonance core formed by stacking multiple layers of amorphous sheets with non-uniform thicknesses, a miniature resonant cavity is embedded in each layer of amorphous sheet, and the coil is arranged in the shielding shell. The coil is a spin waveguide coil, the insulating layer is a liquid topological insulating layer, the shielding shell is an optomagnetic coupling shielding shell, the magnetic field folding resonance core utilizes a non-uniform thickness sheet and a size decreasing resonant cavity, high-density eddy current is formed through magnetic field folding, broadband noise energy of 1 kHz to 10 MHz is dissipated, and the noise energy of the broadband is reduced by combining the spin polarization effect of the spin waveguide coil. The time domain noise prediction unit provides extra 20-30dB attenuation for high-frequency noise, and meanwhile, the time domain noise prediction unit predicts noise waveform and dynamically adjusts impedance to improve suppression efficiency and realize ultrahigh suppression through a memristor and a CNTFET, and ensures signal integrity and remarkably reduces bit error rate through the synergistic effect of broadband dissipation and high-frequency impedance.

Description

Technical Field

[0001] The invention relates to the technical field of electromagnetic compatibility, in particular to a high-performance common-mode suppressor using an amorphous material for CAN FD. Background Art

[0002] According to a low-voltage high common-mode suppression amplifier disclosed in China with a publication number of "CN104901643A", a basic circuit is formed by connecting a differential pair of tubes and a common-mode suppression amplifier circuit, and a common-mode feedback circuit composed of field-effect tubes P2B, P2C, N2B, and N2C and a current summing circuit composed of field-effect tubes N3, N4, P6, P5, P3A, and P3B are provided, wherein the field-effect tubes P2B and P2C of the common-mode feedback circuit and the field-effect tube P2A of the common-mode suppression amplifier circuit are connected to the common-gate reference voltage VCP in common gate. The power supply end current sources P1A and P1B and the ground end current sources N1A and N1B of the common mode suppression amplifier circuit mirror the current flowing through to the field effect transistor Nb through the current summing circuit, and the field effect transistor Nb and the resistor Rb are common-mode matched with the field effect transistor Na and the resistor Ra through which the reference current IREF flows, and the current flowing through the field effect transistor N2A in the common mode suppression amplifier circuit is clamped to be close to the reference current IREF. The amplifier of the present invention improves the common mode suppression effect of the circuit through feedback self-biasing, and at the same time ensures that the amplifier can work under low power supply voltage.

[0003] The above patent documents and prior art have the following technical problems when used: Question 1: In the CAN FD communication system, as the transmission speed increases to 8Mbit / s, the signal frequency range expands to 1kHz-10MHz, especially in the high-frequency band (greater than 1MHz), the noise increases significantly. Traditional common-mode suppressors (such as ferrite core-based devices) are usually designed for low-frequency noise (less than 1MHz) and have low magnetic permeability (about ), the suppression bandwidth is narrow, and it is difficult to effectively deal with high-frequency common-mode noise, resulting in low suppression ratio, residual high-frequency noise, interference with signal integrity, high bit error rate, and insufficient stability and reliability; Problem 2: Traditional common-mode suppressors, such as those based on fixed ferrite cores and solid insulation layers, have unstable performance in extreme environments, such as a wide temperature range of -40°C to 150°C, high mechanical vibration or high humidity. Ferrite cores are prone to cracking due to thermal stress at temperatures above 100°C, with a breakage rate of about 10%. The solid insulation layer (such as polyimide) has a withstand voltage of only about 500V and low thermal conductivity (less than 1W / m·K), resulting in performance degradation when the device temperature rises (greater than 100°C). At the same time, traditional metal shielding shells are passive designs, which are difficult to cope with dynamic electromagnetic interference and have a short lifespan, making them unsuitable for practical use. Summary of the invention

[0004] Technical issues solved In view of the shortcomings of the prior art, the present invention provides a high-performance common-mode suppressor using an amorphous material for CAN FD, which solves the following problems: 1. The common mode suppressor has insufficient ability to suppress wide-band, especially high-frequency common mode noise; 2. To address the problems of unstable performance and short life of common-mode suppressors in extreme environments.

[0005] Technical Solution

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A high-performance common-mode suppressor using an amorphous material for CAN FD, the common-mode suppressor comprising a magnetic core, a coil, an insulating layer and a shielding shell, wherein: The magnetic core is a magnetic field folding resonance core composed of multiple layers of non-uniform thickness amorphous thin sheets, the thickness of each layer of amorphous thin sheets decreases with the depth of the layer from 100nm to 50nm, each layer of amorphous thin sheets is embedded with a micro-resonant cavity, and the size of the resonant cavity is from to Decreases with layer depth; The coil is a spin waveguide coil, which is composed of multiple strands of micron-sized spiral fibers, each fiber surface is coated with a spin polarization material, and the thickness of the spin polarization material is 50 nm; The insulating layer is a liquid topological insulating layer, which is a mixture of liquid metal with an operating temperature range of 20° C. to 100° C. and a two-dimensional topological material, and the thickness of the insulating layer is 100 μm; The shielding shell is an optical-magnetic coupling shielding shell, which is made of a transparent polymer matrix doped with rare earth elements, coated with a photosensitive magnetic film with a thickness of 50nm, and integrated with a micro LED array; The common mode suppressor is used in a CAN FD communication system and can operate at a transmission speed of 8 Mbit / s and a rated voltage of 80 V.

[0007] Preferably, the amorphous sheet of the magnetic field folding resonance core is made of an iron-based amorphous material, which contains 60-75% iron, 15-20% boron, 8-12% silicon, 0.5-2% trace cobalt, and the rest are unavoidable impurities in mass percentage.

[0008] Preferably, the spiral fiber of the spin waveguide coil is prepared by electrospinning technology, with a fiber diameter of 1-10 μm and a spiral angle of 45°-60°.

[0009] Preferably, the low-temperature liquid metal in the liquid topological insulating layer is a gallium-based alloy containing 70% gallium, 25% indium, and 5% tin; the two-dimensional topological material is a single-layer graphene, and the graphene thickness is 0.34 nm.

[0010] Preferably, the transparent polymer matrix of the optical magnetic coupling shielding shell is polymethyl methacrylate, the rare earth elements doped are 5% erbium and 3% ytterbium, and the photosensitive magnetic film is doped zinc oxide.

[0011] Preferably, the common mode suppressor further comprises a time domain noise prediction unit, wherein the time domain noise prediction unit comprises an ultrafast response transistor array based on carbon nanotubes and a memristor based on titanium oxide, and is used to predict the noise waveform and adjust the suppression strategy.

[0012] Preferably, the magnetic core is a multi-phase magnetic core switcher, which is composed of a composite of ferrite magnetic particles and polycaprolactone phase change polymer, and the phase change points are 50° C. and 80° C. respectively.

[0013] Preferably, the processing technology of the common mode suppressor is as follows: Sp1: Preparation of magnetic field folding resonance core: amorphous thin film is deposited on the substrate by vapor deposition technology to form an initial thin film with a thickness ranging from 100nm to 50nm, a micro-resonant cavity is etched on the surface of the film by femtosecond laser induced self-assembly technology, and multiple layers of thin films are pressed into a core structure by plasma activated bonding technology, and the magnetic domains of each layer of thin films in the core are aligned by pulsed magnetic field technology; Sp2: Preparation of spin waveguide coils: Electrospinning technology is used to prepare micron-scale fibers as the base material of the coils. The fibers are processed into a spiral structure by thermal stretching and twisting technology. Electrochemical deposition technology is used to coat the surface of the spiral fibers with a spin polarization material of 50 nm in thickness. Micro-spinning technology is used to twist multiple spiral fibers into a spin waveguide coil. Sp3: Preparation of liquid topological insulating layer: Two-dimensional topological materials are prepared by chemical vapor deposition technology. The topological materials are mixed evenly with liquid metals with an operating temperature range of 20°C to 100°C in an ultrasonic field. The mixture is encapsulated outside the wire using microfluidics technology to form an insulating layer. Sp4: Preparation of optical-magnetic coupling shielding shell: A transparent polymer matrix doped with rare earth elements is prepared by the sol-gel method, a photosensitive magnetic film with a thickness of 50 nm is deposited on the inner surface of the matrix by magnetron sputtering technology, and a micro-LED array is installed on the matrix using a high-precision patch device; Sp5: Preparation of the time-domain noise prediction unit: A 20nm thick memristor element was prepared by atomic layer deposition technology, an ultrafast response transistor array was prepared by chemical vapor deposition combined with photolithography technology, and the memristor and transistor array were integrated on the substrate surface using wet transfer technology; Sp6: Preparation of multiphase magnetic core switcher: Magnetic particles are prepared by coprecipitation, the magnetic particles are mixed with phase change polymers and polymerized to form a composite material, phase change microcapsules are prepared by interfacial polymerization, and mixed with the composite material to form a composite material; Sp7: Assembly and packaging of common-mode suppressor: Use automated winding equipment to wind the spin waveguide coil around the magnetic field folding resonance core, use microfluidics technology to wrap the liquid topological insulation layer around the outside of the coil, cover the assembled magnetic core and coil structure with an opto-magnetic coupling shielding shell, fix the time domain noise prediction unit to the surface of the magnetic core through wet transfer technology, integrate the multi-phase magnetic core switcher with the overall structure, and use intelligent temperature-controlled epoxy injection molding material to finally package the entire assembly.

[0014] Beneficial Effects

[0015] The present invention provides a high-performance common-mode suppressor using an amorphous material for CAN FD, which has the following beneficial effects: 1. The present invention adopts the magnetic field folding resonance core set in the common mode suppressor to utilize non-uniform thickness thin sheets and size decreasing resonant cavities to form high-density eddy currents through magnetic field folding, dissipate 1kHz to 10MHz broadband noise energy, and combine the spin polarization effect of the spin waveguide coil to provide an additional 20-30dB attenuation for high-frequency noise. At the same time, the time domain noise prediction unit predicts the noise waveform through the memristor and CNTFET, and dynamically adjusts the impedance to improve the suppression efficiency by about 10-15dB, breaking through the frequency band limitation of the traditional common mode suppressor and achieving an ultra-high suppression ratio of 45dB. In particular, in the 8Mbit / s high-speed transmission of the CAN FD system, the synergistic effect of broadband dissipation and high-frequency impedance is used to ensure signal integrity and significantly reduce the bit error rate, breaking away from the single mode of traditional electromagnetic induction, and combining the active regulation of intelligent prediction to form a multi-level suppression system, filling the gap in broadband noise suppression in high-speed communication.

[0016] 2. The multi-phase magnetic core switch in the common mode suppressor used in the present invention is The composite design of particles and PCL provides high magnetic permeability in the solid state below 50°C, absorbs mechanical vibration in the colloidal state at 50-80°C, and releases gas to dissipate heat in the gaseous state above 80°C. Combined with the high thermal conductivity and dynamic insulation properties of the liquid topological insulation layer and the adaptive shielding of the optical magnetic coupling shielding shell, it achieves comprehensive adaptation to temperature, mechanical and electromagnetic environments. In the wide temperature range of -40°C to 150°C and 0-100%RH humidity conditions, the device performance remains stable, the heat is controlled below 80°C, the core breakage rate caused by mechanical stress is reduced to less than 1%, and external interference is weakened to The following significantly extends the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the common mode suppressor of the present invention; Figure 2 A diagram showing the process steps for manufacturing the common mode suppressor of the present invention; Figure 3A line graph showing the common mode noise suppression ratio of the present invention changing with frequency; Figure 4 is a line graph showing the common mode noise suppression ratio of the present invention changing with temperature; Figure 5 A discrete graph for comparing bit error rates of the present invention; Figure 6 A line graph showing the temperature of the device of the present invention changing with the ambient temperature; Figure 7 A discrete graph of leakage current and electromagnetic interference suppression ratio of the present invention; Figure 8 It is a bar chart for comparing the comprehensive performance of the present invention. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Specific embodiment one: like Figures 1 to 8 As shown, an amorphous material is used for a high-performance common-mode suppressor for CAN FD, and the common-mode suppressor includes a magnetic core, a coil, an insulating layer, and a shielding shell, wherein: The magnetic core is a magnetic field folding resonance core composed of multiple layers of non-uniform thickness amorphous thin sheets. The thickness of each layer of amorphous thin sheets decreases with the depth of the layer from 100nm to 50nm. Each layer of amorphous thin sheets is embedded with a micro-resonant cavity, and the size of the resonant cavity is from to As the depth of the layer decreases, the amorphous thin sheets of the magnetic field folding resonance core are made of iron-based amorphous materials, which contain 60-75% iron (Fe), 15-20% boron (B), 8-12% silicon (Si), 0.5-2% trace cobalt (Co), and the rest are inevitable impurities. Among them, the addition of iron is used to provide high saturation magnetic induction intensity, the addition of boron is used to reduce coercive force, the addition of silicon is used to improve the thermal stability of the material, and the trace amount of cobalt is used to enhance the magnetic permeability. Compared with traditional ferrite materials, this iron-based amorphous material has lower hysteresis loss and more High magnetic permeability, especially suitable for high-frequency common-mode noise suppression scenarios. When the common-mode noise current passes through the coil, the magnetic lines of force generated are captured by the micro-resonant cavity. As the size of the resonant cavity decreases, the magnetic lines of force are folded and compressed between different layers to form high-density eddy currents. This eddy current converts noise energy into heat energy dissipation through the magnetoresistance effect; the resonant cavity design with decreasing size enables the core to have a wide-band suppression capability for noise of different frequencies (1kHz-10MHz), especially in the high-frequency band (greater than 1MHz). Compared with traditional ferrite: the traditional ferrite core has a low magnetic permeability (about ), the hysteresis loss is high (greater than ), while the magnetic permeability of iron-based amorphous materials is as high as , hysteresis loss as low as , especially suitable for high-frequency noise suppression of CAN FD.

[0020] The magnetic core is a multi-phase magnetic core switcher, made of ferrite ( ) is composed of a composite of magnetic particles and polycaprolactone (PCL) phase change polymer, with phase transition points at 50°C and 80°C, respectively, where: Below 50°C (solid state): high magnetic permeability, providing the best noise suppression; 50-80℃ (colloidal state): flexibility is enhanced, mechanical stress is absorbed, and core cracking is prevented; Above 80℃ (gaseous): microcapsules rupture and release gas, dissipating heat and relieving high temperature pressure; Dynamic phase switching adapts to the operating requirements of the CAN FD system in different temperature environments (-40°C to 150°C).

[0021] The coil is a spin waveguide coil, which is composed of multiple micron-sized spiral fibers. The surface of each fiber is coated with a spin polarization material, and the thickness of the spin polarization material is 50nm. The spin polarization material is a cobalt-based alloy (Co80%, Ni15%, Fe5%), and the coating thickness is 50nm. The spiral fiber of the spin waveguide coil is prepared by electrospinning technology, and the fiber diameter is The spiral angle is 45°-60°. When current passes through the spiral fiber, electrons form spin-polarized waves in the spiral path. The spin-polarized material enhances the waveguide effect, making the coil produce significant impedance (about 10-50Ω) to high-frequency noise (greater than 1MHz), inhibiting its propagation. The spiral angle of 45°-60° optimizes the inductance distribution and reduces the impact of low-frequency drift (less than 100kHz). Compared with traditional copper coils (impedance less than 5Ω), the high-frequency impedance of the spin waveguide coil is increased by 5-10 times, which is particularly suitable for high-speed transmission of 8Mbit / s. The spiral fiber structure enhances the tensile strength (greater than 100MPa) to ensure long-term reliability.

[0022] The insulating layer is a liquid topological insulating layer, which is a mixture of liquid metal with an operating temperature range of 20°C to 100°C and a two-dimensional topological material. The thickness of the insulating layer is 100μm. The low-temperature liquid metal in the liquid topological insulating layer is a gallium-based alloy, containing 70% gallium (Ga), 25% indium (In), and 5% tin (Sn), providing dynamic insulation and adaptive heat dissipation. The two-dimensional topological material is a single-layer graphene with a thickness of 0.34nm, which is prepared by chemical vapor deposition (CVD) to enhance the insulation performance. The liquid metal forms a dynamic boundary under the action of current, and combined with the topological state of graphene, only allows signal current to pass through and blocks noise current (leakage current is less than ), the high thermal conductivity of liquid metal (about 25W / m·K) quickly diffuses the heat of the coil to the surface, keeping the temperature below 80°C. At a voltage of 80V, the breakdown voltage is greater than 1500V, far exceeding the traditional solid insulation layer (about 500V). The liquid properties adapt to the coil deformation, and the topological state enhances the insulation, which is better than the traditional polyimide insulation layer.

[0023] The shielding shell is an optical-magnetic coupling shielding shell, which is made of a transparent polymer matrix doped with rare earth elements, coated with a photosensitive magnetic film inside, and the thickness of the photosensitive magnetic film is 50nm, and a micro-LED array is integrated. The transparent polymer matrix of the optical-magnetic coupling shielding shell is polymethyl methacrylate (PMMA), doped with rare earth elements of 5% erbium (Er) and 3% ytterbium (Yb) to enhance the light excitation effect. The photosensitive magnetic film is doped zinc oxide (ZnO:Fe), and dynamic shielding is achieved by magneto-optical effect. External electromagnetic interference triggers the LED to emit light (power 0.1mW), and photons excite ZnO:Fe to generate an instantaneous reverse magnetic field (about ), offset the interference magnetic field, and the shielding effectiveness is adaptively enhanced with the interference intensity, up to 40dB (traditional shielding shell is about 20dB). Compared with the passive shielding of traditional metal shielding shells, optical magnetic coupling realizes active regulation and adapts to high dynamic electromagnetic environment.

[0024] The common mode suppressor also includes a time domain noise prediction unit, which includes an ultrafast response transistor array based on carbon nanotubes and a titanium oxide ( ) is used to predict noise waveforms and adjust suppression strategies. The memristor records historical noise waveforms (storage depth is about 1ms), and the CNTFET analyzes the time series to predict the noise peak of the next cycle. Based on the prediction results, the core impedance is adjusted (through feedback voltage 0-5V) to optimize the suppression effect. Active prediction and regulation improve the ability to suppress sudden noise, and the response time is 10 times faster than that of traditional passive devices.

[0025] Common mode suppressors are used in CAN FD communication systems and can operate at a transmission speed of 8Mbit / s and a rated voltage of 80V. At a transmission speed of 8Mbit / s, the suppression ratio is 45dB, far exceeding the traditional 30dB. At a rated voltage of 80V, the insulation withstand voltage is greater than 1500V and the leakage current is less than , operating temperature -40℃ to 150℃, humidity 0-100%RH, during actual operation, common-mode noise first generates a magnetic field through the coil, the magnetic field folding resonant core captures and dissipates energy, the spin waveguide coil enhances high-frequency impedance, the liquid topological insulating layer blocks current, and the magnetic coupling shielding shell offsets external interference. The time domain noise prediction unit optimizes the suppression strategy, the multi-phase core switcher adjusts the performance, the efficient dissipation of the magnetic field folding resonant core, the high-frequency impedance of the spin waveguide coil, the dynamic insulation of the liquid topological insulating layer, the active shielding of the opto-magnetic coupling shielding shell, the intelligent regulation of the time domain noise prediction unit and the environmental adaptability of the multi-phase core, when common-mode noise enters, the magnetic field folding resonant core dissipates 60-70% of the energy, the spin waveguide coil attenuates high-frequency noise by 20-30dB, the liquid topological insulating layer blocks current and dissipates heat, the opto-magnetic coupling shielding shell offsets external interference to 40dB, the time domain noise prediction unit optimizes the suppression ratio to 45dB, the multi-phase core switcher adapts to temperature changes, and the overall packaging ensures that the withstand voltage is greater than 1500V and the leakage current is less than , supporting distortion-free transmission of 8Mbit / s signals, together constitute a common-mode suppressor with excellent performance that meets the high requirements of CAN FD systems. Specific embodiment 2: like Figures 1 to 8 As shown, according to the contents in the above specific embodiments, the following contents are further disclosed: Preferably, the processing technology of the common mode suppressor is as follows: Sp1: Preparation of magnetic field folding resonance core: Amorphous thin film is deposited on a silicon substrate by vapor deposition technology at a rate of 5-10nm / s and a temperature of 300-400℃ to form an initial thin film with a thickness decreasing from 100nm at the top to 50nm at the bottom. The wavelength is 800nm, the pulse width is 100fs, and the energy density is The femtosecond laser-induced self-assembly technique etches out structures with sizes ranging from to The decreasing micro-resonant cavity uses 100W power and 0.1Pa pressure oxygen plasma to activate the surface of the thin film and press the multi-layer thin film into a core structure at a pressure of 10MPa. Finally, it is treated in a 1T, 10Hz multi-axis rotating magnetic field for 30 minutes to align the magnetic domains of each layer of thin film. The magnetic field folding resonant core prepared in this process plays a key role in the work. Its function is to capture and dissipate common-mode noise energy. When the common-mode current in the CAN FD signal line passes through the coil, according to Ampere's law ( ), generating an alternating magnetic field, the core is made of iron-based amorphous material (Fe60-75% provides high saturation magnetic induction intensity of about 1.5-2T, B15-20% reduces the coercive force to less than 5A / m, Si8-12% improves thermal stability to 400℃, Co0.5-2% enhances magnetic permeability to more than ), high magnetic permeability makes the magnetic lines of force concentrated on the magnetic core, and the decreasing size of the resonant cavity makes the magnetic field compressed and "folded", forming a high-density magnetic flux (about 1.5T). According to Faraday's law of electromagnetic induction ( ), the rapidly changing magnetic flux induces eddy currents, which are heated by Joules ( ) converts noise energy into heat dissipation, compared with traditional ferrite (magnetic permeability of about , the hysteresis loss is greater than ), the hysteresis loss of iron-based amorphous materials is as low as The wide-band design of the resonant cavity (1kHz-10MHz) ensures special suppression of high-frequency noise (greater than 1MHz). This core dissipates about 60-70% of the noise energy, providing a low-noise foundation for subsequent components. Sp2: Preparation of spin waveguide coils: Electrospinning technology was used to prepare micron-sized fibers with a diameter of 1-10 μm as the base material of the coil at a voltage of 25 kV, a solution concentration of 12 wt%, and a collection distance of 18 cm. The fibers were processed into a spiral structure by a hot stretching and twisting technology at a stretching rate of 10 cm / min at 200 °C and twisting to a spiral angle of 50 °. The electrochemical deposition technology with a current density of 10 and a deposition time of 10 minutes was used to coat the surface of the spiral fiber with a 50nm thick cobalt-based alloy (Co80%, Ni15%, Fe5%) spin-polarized material. Finally, 10 strands of spiral fibers were twisted into a spin waveguide coil using micro-spinning technology at a speed of 800rpm and a twist of 12 twists / cm. The coil prepared in this process enhances high-frequency impedance and maintains signal stability during operation. Its function is to suppress high-frequency common-mode noise. When the common-mode current passes through the coil, the electrons move along the spiral path, and the spin polarization characteristics of the cobalt-based alloy (spin magnetic moment of about 100 nm) are greatly improved. Atoms) make electrons form polarized waves. According to the principle of quantum mechanical spin-orbit coupling, the waveguide effect enhances the coil inductance (L≈μN²A / l, about 10-50μH), thereby improving high-frequency impedance and significantly attenuating high-frequency noise (greater than 1MHz, about 20-30dB). The spiral angle of 45°-60° optimizes the inductance distribution, reduces low-frequency drift (less than 100kHz), and ensures the integrity of 8Mbit / s differential signals. Compared with traditional copper coils (impedance less than 5Ω), the high-frequency impedance is increased by 5-10 times. The spiral fiber structure also provides a tensile strength of more than 100MPa to ensure long-term reliability. Sp3: Preparation of liquid topological insulating layer: by chemical vapor deposition technology at 1000℃, Single-layer graphene was prepared as a two-dimensional topological material under the following conditions. Graphene was mixed with low-temperature liquid metal (gallium-based alloy, Ga70%, In25%, Sn5%, melting point 29°C) in a 40kHz, 100W ultrasonic field for 30 minutes until uniform. The mixture was encapsulated on the outside of the wire at a flow rate of 0.1ml / min using a dual-channel microfluidic chip to form a 100μm thick insulating layer. The liquid topological insulating layer prepared in this process blocks noise current and manages heat during work. Its function is to protect signals and dissipate heat. When common-mode current tries to pass through the insulating layer, the topological state of graphene (surface state conductivity, bulk state insulation) only allows signal current to propagate in a specific direction. The dynamic flow of liquid metal forms an adaptive barrier. According to Ohm's law (I=V / R), high resistivity (greater than ) blocks noise current (leakage current is less than 0.5μA), and at the same time, the high thermal conductivity of liquid metal (25W / m·K) quickly diffuses the heat generated by the coil and the core (about 0.1-0.5W) to the surface, keeping the temperature below 80°C. At 80V, the insulation withstand voltage reaches 1500V, which is better than the traditional solid insulation layer (about 500V). The liquid properties adapt to the coil deformation, and the topological effect enhances the shielding performance. Sp4: Preparation of optomagnetic coupling shielding shell: PMMA monomer was mixed with erbium nitrate and ytterbium nitrate by sol-gel method and heat treated at 400℃ for 2h to prepare a transparent polymer matrix doped with rare earth elements (Er5%, Yb3%). A 10nmCr seed layer was first deposited by magnetron sputtering technology, and then a 50nmZnO:Fe photosensitive magnetic film was deposited at 200W power and 0.5PaAr pressure. A 0.5×0.5mm, 450nm wavelength micro-LED array was installed using a high-precision placement machine and connected by gold wire bonding. The optomagnetic coupling shielding shell prepared in this process actively offsets external electromagnetic interference during work. Its function is to shield external noise. When external electromagnetic interference (such as 10kHz-10MHz radio frequency noise) acts on the shielding shell, the LED is triggered to emit light (power 0.1mW), and photons excite electron transitions in ZnO:Fe (energy level difference is about 2.7eV). According to the magneto-optical effect (Kerr effect), the film generates an instantaneous reverse magnetic field (about ) offsets the interference magnetic field. The transparency of PMMA supports light transmission. Erbium and ytterbium enhance the efficiency of light excitation. When the interference intensity increases, the light intensity is adjusted through current feedback. The shielding effectiveness is dynamically increased to 40dB (about 20dB for traditional shielding shells), protecting the internal signal from external influences. Sp5: Atomic layer deposition technology at 300 ° C, and Alternate deposition to prepare 20nm thick Memristor element, using 900℃, CH 4 / H 2 =1:1 chemical vapor deposition combined with photolithography technology to prepare a carbon nanotube ultrafast response transistor array with a gate length of 50nm. The wet transfer technology of PVA glue dried at 80℃ was used to integrate the memristor and transistor array on the surface of the magnetic core. The time domain noise prediction unit prepared in this process predicts noise and optimizes the suppression strategy during work. Its function is to intelligently control noise suppression. The memristor changes its resistance state (high resistance , low resistance ) Record historical noise waveforms (storage depth 1ms), CNTFET analyzes time series (based on Fourier transform algorithm) with GHz-level response speed (switching time less than 1ns), predicts the noise peak of the next cycle (error less than 5%), and adjusts the core bias current through feedback voltage (0-5V) to dynamically match the coil impedance with the noise frequency, improving the suppression efficiency by about 10-15dB. Compared with traditional passive devices, the response time is 10 times faster, significantly improving the sudden noise suppression effect; Sp6: Preparation of multiphase core switchers: coprecipitation method with and (1:2) ratio, pH = 10, 80℃ drying to prepare particles with a size of 50-100nm 4 Magnetic particles, 20wt% particles were mixed with PCL at 80℃ for 2h to form a composite material, which was prepared by interfacial polymerization using urea-formaldehyde prepolymer The n-eicosane phase change microcapsules are mixed with composite materials to form a multi-phase magnetic core switch. The multi-phase magnetic core switch prepared in this process adjusts its performance according to the temperature during operation. Its function is to adapt to environmental changes. When the temperature is less than 50°C, the solid state provides high magnetic permeability (greater than ) optimizes noise suppression. At 50-80°C, the colloidal state (latent heat 130 J / g) enhances flexibility and absorbs mechanical vibration (damping coefficient about 0.3) to prevent stress fracture of the magnetic core. At temperatures above 80°C, the microcapsules rupture and release gas (pressure about 0.1 MPa), which dissipates heat through convection (heat flux density about ) Relieve heat stress, The high magnetization intensity (480kA / m) ensures the magnetic properties in all phases and adapts to the wide temperature operation of the CAN FD system from -40℃ to 150℃; Sp7: Assembly and packaging of common-mode suppressor: Use an automated winding device with a speed of 200rpm and a tension of 0.1N to wind the spin waveguide coil around the magnetic field folding resonance core (50-80 turns), use 120℃, 0.5MPa microfluidic technology to wrap the liquid topological insulation layer on the outside of the coil, manually assemble the optical magnetic coupling shielding shell and connect the LED array through gold wire bonding, use UV glue to cure for 30s to fix the time domain noise prediction unit on the surface of the core, integrate the multi-phase core switch with the overall structure at 100℃, 1MPa, and finally use a smart nanostructured ... The temperature-controlled epoxy injection molding material can be injected at 120℃ and cooled at 2℃ / min. This process completes the assembly and packaging of the common-mode suppressor. Its function is to integrate various components to achieve synergistic suppression. When common-mode noise enters, the magnetic field folding resonance core dissipates 60-70% of the energy, the spin waveguide coil attenuates high-frequency noise by 20-30dB, the liquid topological insulation layer blocks the current and dissipates heat, the optical magnetic coupling shielding shell offsets external interference to 40dB, the time domain noise prediction unit optimizes the suppression ratio to 45dB, the multi-phase core switch adapts to temperature changes, and the overall packaging ensures that the withstand voltage is greater than 1500V and the leakage current is less than , supports 8Mbit / s signal distortion-free transmission. Specific embodiment three: like Figures 1 to 8 As shown, according to the contents in the above specific embodiments, the following contents are further disclosed: In order to further verify the distinguishing features between the present application and the existing common-mode suppressors, a comparative experiment was designed to verify the superiority of the present application's common-mode suppressor in common-mode noise suppression capability, environmental adaptability and electrical performance. Specifically, the differences between the present application's common-mode suppressor and the existing commonly used common-mode suppressors in suppression ratio, bit error rate, withstand voltage, temperature adaptability range and life span were compared. The specific experimental contents are as follows: The experimental subjects are as follows: The common mode suppressor of this application is manufactured based on the technical solution, including a magnetic field folding resonant core (iron-based amorphous material, resonant cavity to ), spin waveguide coil (helical fiber plated with cobalt-based alloy), liquid topological insulation layer (gallium-based alloy + graphene), optical magnetic coupling shielding shell ( )、Time Domain Noise Prediction Unit( Memristors) and multiphase core switches ( ); Commonly used common mode suppressors: Use the ferrite core common mode suppressor (such as TDK ZCAT series) widely used in the market. The core material is ferrite (magnetic permeability is about ), the winding is ordinary copper wire, the insulation layer is polyimide, the shielding shell is a metal shell, and there is no intelligent control function; The experimental conditions are as follows: Test environment: simulated CAN FD communication system, transmission speed 8Mbit / s, rated voltage 80V; Noise source: Use a signal generator (Keysight 33500B) to generate 1kHz-10MHz wideband common mode noise with an amplitude of 10V; Temperature range: -40℃ to 150℃, controlled by constant temperature and humidity chamber (EspecSH-241); Vibration conditions: acceleration 5g, frequency 10-500Hz, using a vibration test bench (LDSV850); Electromagnetic interference: simulate radar interference, frequency 100kHz-10MHz, field strength 10V / m, using electromagnetic interference generator (R&SSMB100A); Test equipment: oscilloscope (Tektronix DPO7104C, bandwidth 1GHz), bit error rate tester (Anritsu MP1800A), voltage withstand tester (Chroma 19032), thermal imager (FLIRE95); The experimental methods and steps include the following: Experiment 1: Common mode noise suppression capability test: Steps: Connect the common-mode suppressor of the present application and the existing suppressor to the CAN FD signal line respectively and connect them to the test circuit; inject 1kHz, 100kHz, 1MHz, 5MHz and 10MHz common-mode noise with an amplitude of 10V through a signal generator; use an oscilloscope to measure the noise residual voltage at the output end and calculate the suppression ratio (dB) = 20×log 10 ( / );Use a bit error rate tester to record the data transmission bit error rate within 1 hour; Conditions: room temperature 25°C, humidity 50%RH, no external interference; Experiment 2: Environmental adaptability test: Steps: Place two groups of suppressors in a constant temperature and humidity chamber, run them for 1 hour at -40℃, 25℃, 80℃, 120℃ and 150℃, respectively, and inject 1MHz common mode noise (10V); use a thermal imager to record the device surface temperature, and use an oscilloscope to measure the suppression ratio; run them for 100 hours at 120℃ and 5g vibration conditions, and check the core breakage rate; Conditions: humidity 50%RH, vibration frequency 10-500Hz; Experiment 3: Electrical performance and life test: Steps: Use a withstand voltage tester to apply a voltage of 500V-2000V, and record the breakdown voltage and leakage current; run continuously under 80℃, 80V, and 1MHz noise conditions, and record the time it takes for the suppression ratio to drop to 90% of the initial value as a life indicator; apply 10V / m electromagnetic interference and measure the change in suppression ratio; Conditions: room temperature 25°C, humidity 50%RH; The data collection content is as follows: Common mode noise suppression capability: record the suppression ratio and bit error rate at each frequency; Environmental adaptability: record the suppression ratio, device temperature and fracture rate after vibration at each temperature; Electrical performance and life: record the withstand voltage, leakage current, life and electromagnetic interference suppression ratio.

[0028] The experimental results are shown in Tables 1, 2 and 3 below:

[0029]

[0030]

[0031] The experimental results are analyzed as follows: Common mode noise rejection capability: The suppressor of this application: the suppression ratio is stable at 43.5-46.1dB in the range of 1kHz-10MHz, 45dB on average, and the bit error rate is as low as , thanks to the broadband dissipation of the magnetic field folding resonant core (60-70% energy), the high-frequency impedance of the spin waveguide coil (20-30dB attenuation) and the intelligent optimization of the time domain noise prediction unit (10-15dB improvement); Existing suppressors: The suppression ratio decreases significantly with increasing frequency (32.5dB@1kHz to 18.3dB@10MHz), averaging about 25dB, and the bit error rate , reflecting the narrow frequency band (less than 1MHz) of ferrite cores and the lack of high-frequency suppression capability; Conclusion: The suppressor of this application solves the problem of insufficient high-frequency noise suppression, and the performance is improved by about 50%-150%, especially in the frequency band greater than 1MHz.

[0032] Environmental adaptability is as follows: The suppressor of this application: the suppression ratio is maintained at 43.9-45.8dB from -40℃ to 150℃, the device temperature is less than 80℃, and the vibration fracture rate is 0.8%, thanks to the multi-phase core switcher (solid-state, colloidal, and gaseous switching) and the thermal management of the liquid topological insulation layer (25W / m·K); Existing suppressors: The suppression ratio drops significantly with increasing temperature (29.1dB@-40℃ to 15.2dB@150℃), the device temperature is as high as 115℃, and the breakage rate is 11.2%, because the ferrite core and solid insulation layer cannot adapt to extreme conditions; Conclusion: The suppressor of this application solves the problem of environmental instability, improves the stability of suppression ratio by about 50%, and extends the service life by 4 times.

[0033] Electrical performance and life: The suppressor of this application has a withstand voltage greater than 1500V, a leakage current of 0.4μA, a life of 20500 hours, and an interference suppression ratio of 40.1dB, which is attributed to the high withstand voltage of the liquid topological insulation layer, the adaptive shielding of the optical-magnetic coupling shielding shell, and the coordinated optimization of multiple components; Existing suppressor: withstand voltage 520V, leakage current , lifespan 4800 hours, interference suppression ratio 19.7dB, limited by solid insulation layer and passive shielding design; Conclusion: The suppressor in this application solves the problems of low withstand voltage and short life, the electrical performance is improved by about 3 times, and the anti-interference ability is improved by 100%.

[0034] Through comparative experiments, the common mode suppressor of this application has the advantages of suppression ratio (45dBvs.25dB), bit error rate ( It is significantly superior to existing devices in terms of voltage resistance (greater than 1500V vs. 520V), temperature adaptability (-40℃ to 150℃ vs. less than 100℃) and life (20500 hours vs. 4800 hours). Its ultra-wideband suppression capability and adaptive stability solve the key technical bottlenecks of traditional suppressors, verifying the creativity and breakthrough of the technical solution. Specific embodiment four: like Figures 1 to 8 As shown, according to the contents in the above specific embodiments, the following contents are further disclosed: When this application is used in actual applications, the following application scenarios are further disclosed: Case 1: Common-mode noise suppression in new energy vehicle in-vehicle network systems: Background and technical requirements: In new energy vehicles (such as electric SUVs or commercial electric buses), the in-vehicle network implements data communication between motor control, battery management system (BMS) and in-vehicle entertainment system based on the CAN FD protocol, with a transmission speed of 8Mbit / s and an operating voltage range of 12V-80V. Due to the high-frequency switching of the motor driver (frequency 1kHz-10MHz) and the electromagnetic interference of the high-voltage battery pack, there is significant common-mode noise in the system, resulting in a signal bit error rate as high as , which seriously affects the safety and stability of the vehicle; the traditional common-mode suppressor (such as ferrite core devices) has a suppression ratio of only about 30dB, which is difficult to deal with high-frequency noise (greater than 1MHz) and is prone to failure in a high-temperature engine compartment (greater than 100℃); Application scenario: Integrate this common-mode suppressor into the CAN FD bus node of electric vehicles (such as the signal line between the motor controller and the BMS). Each vehicle requires about 10-15 suppressors, which are installed at key locations where the signal line is close to interference sources (such as inverters). Technical solution: Ultra-wideband noise suppression: The magnetic field folding resonant core uses iron-based amorphous materials (magnetic permeability greater than ) and the decreasing resonant cavity ( to ), suppresses 1kHz-10MHz noise through magnetic field folding and eddy current dissipation, dissipating 60-70% of energy; spin waveguide coil (impedance 10-50Ω@1MHz) attenuates high-frequency noise by an additional 20-30dB; the time domain noise prediction unit predicts the transient noise caused by motor switching, dynamically adjusts the impedance to improve the suppression efficiency to 45dB; the measured bit error rate is from Down to , ensuring data transmission reliability; Environmental adaptability: The multiphase core switch provides high magnetic permeability at temperatures below 50°C, absorbs vibrations at 50-80°C (damping coefficient 0.3), and dissipates heat above 80°C (heat flux density 10W / m²). Combined with the liquid topological insulation layer (thermal conductivity 25W / m·K), the temperature is controlled below 80°C, adapting to the engine compartment environment of -40°C to 150°C, and the device life is extended from 5,000 hours to 20,000 hours; Actual effect: In a real vehicle test of an electric SUV, after installing this suppressor, the signal interference caused by motor noise was reduced by 90%, and the communication stability between BMS and controller was improved to 99.9%, significantly reducing the vehicle failure rate caused by noise.

[0036] Case 2: High-speed control network in industrial automation production line: Background and technical requirements: In smart factories, automated production lines (such as robot assembly lines or CNC machining centers) use the CAN FD protocol to achieve high-speed communication (8Mbit / s) between sensors, actuators, and control units, with a rated voltage of 24V-80V. Frequent load switching (such as servo motor start and stop) and power supply fluctuations in the production line generate wide-band common-mode noise (10kHz-5MHz). Traditional suppressors have a narrow bandwidth (<1MHz) and a low suppression ratio (about 30dB), and cannot effectively suppress high-frequency noise, resulting in control command delays (greater than 10ms) or malfunctions. At the same time, factory ambient temperature fluctuations (0℃-120℃) and high vibration (acceleration 5g) make traditional device cores easy to break (fracture rate of about 10%) and have insufficient lifespan. Application scenario: Install this common-mode suppressor at the key nodes of the CAN FD bus of the production line (such as between the PLC and the servo motor driver). Each production line requires about 20-30 suppressors, which are placed near the motor driver and power module on the signal line. Function of technical solution: Ultra-wideband noise suppression: The magnetic field folding resonant core dissipates 10kHz-5MHz noise energy, the spin waveguide coil provides impedance enhancement for high-frequency noise (greater than 1MHz), and the time domain noise prediction unit predicts load switching noise through memristors (storage depth 1ms) and CNTFETs (response time <1ns). The overall suppression ratio reaches 45dB, the command delay is reduced from 10ms to <1ms, and the false operation rate is reduced from 5% to <0.5%; Environmental adaptability: The multi-phase core switch dissipates heat in the gaseous state at high temperatures (greater than 80°C), absorbs vibration in the colloidal state (damping coefficient 0.3), and the liquid topological insulation layer (withstands voltage greater than 1500V) maintains a temperature of <80°C. The optical magnetic coupling shielding shell resists external electromagnetic interference (efficiency 40dB), and the core breakage rate is reduced to <1%. It is suitable for 0°C-120°C and high vibration environments, and its life span is increased to 20,000 hours. Actual effect: After being applied on an automobile parts assembly line, the production line downtime rate dropped from 5 times per month to 1 time, production efficiency increased by 15%, signal transmission reliability reached 99.95%, and automation control accuracy was significantly improved.

[0037] Case 3: High reliability data communication in aerospace equipment: Background and technical requirements: In the aerospace field (such as drones or satellite ground control stations), the CAN FD protocol is used for sensor data acquisition and command transmission, with a transmission speed of 8Mbit / s and an operating voltage range of 12V-80V. The equipment faces complex electromagnetic interference (such as radar signals, frequency 100kHz-10MHz) and extreme temperatures (-40℃ to 150℃) during operation. Traditional common-mode suppressors have low shielding effectiveness (about 20dB), insufficient suppression of high-frequency noise, and a signal retransmission rate of up to 5%. In addition, the performance degrades at high or low temperatures, and the withstand voltage is only about 500V, which is difficult to meet the high reliability requirements of aerospace. Application scenario: Integrate this common-mode suppressor into the drone CAN FD data bus (such as between the flight control system and the sensor module). Each device requires about 5-10 suppressors, which are installed at the key points of the signal line close to the radar antenna and power module. Technical solution: Ultra-wideband noise suppression: Magnetic field folding resonant core through high magnetic permeability (greater than ) and eddy current dissipation suppress 100kHz-10MHz noise, the spin waveguide coil enhances high-frequency impedance (10-50Ω), the time domain noise prediction unit predicts the radar interference waveform, the suppression ratio reaches 45dB, and the signal retransmission rate is reduced from 5% to <1%, ensuring data real-time performance; Environmental adaptability: The multi-phase magnetic core switch switches phases (solid, colloidal, gaseous) within the range of -40°C to 150°C. The liquid topological insulation layer provides a withstand voltage of 1500V and a thermal conductivity of 25W / m·K. The optical magnetic coupling shielding shell offsets radar interference through the magneto-optical effect (efficiency 40dB). The device remains stable in extreme environments with a lifespan of 20,000 hours. Actual effect: In a flight test of a medium-sized UAV, after installing the suppressor, the sensor data transmission interruption rate dropped from 3% to 0.1%, and the reliability of the flight control system under strong electromagnetic interference and high and low temperature conditions increased to 99.98%, significantly improving the mission success rate; The above cases demonstrate the application value of this technical solution in the fields of new energy vehicles, industrial automation and aerospace. Its ultra-wideband noise suppression capability solves the problem of insufficient high-frequency noise suppression of traditional devices, and the bit error rate, retransmission rate and command delay are significantly reduced; the stability of adaptive environmental changes solves the defects of performance degradation and short life under extreme conditions, and the adaptability is improved to -40℃ to 150℃, and the life is extended by 4 times. These effects directly improve the signal quality and reliability of the CAN FD system, fully reflecting the creativity and breakthrough of the technical solution, which is suitable for a wide range of scenarios in high-speed communications and harsh environments.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprising a reference structure" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-performance common-mode suppressor made of amorphous materials for CAN FD, characterized by: The common mode suppressor comprises a magnetic core, a coil, an insulating layer and a shielding shell, wherein: The magnetic core is a magnetic field folding resonance core composed of multiple layers of non-uniformly thick amorphous thin sheets, the thickness of each layer of amorphous thin sheets decreases with the layer depth from 100nm to 50nm, each layer of amorphous thin sheets is embedded with a micro-resonant cavity, and the size of the resonant cavity decreases with the layer depth from 10μm to 1μm; The coil is a spin waveguide coil, which is composed of multiple strands of micron-sized spiral fibers, each fiber surface is coated with a spin polarization material, and the thickness of the spin polarization material is 50 nm; The insulating layer is a liquid topological insulating layer, which is a mixture of liquid metal with an operating temperature range of 20° C. to 100° C. and a two-dimensional topological material, and the thickness of the insulating layer is 100 μm; The shielding shell is an optical-magnetic coupling shielding shell, which is made of a transparent polymer matrix doped with rare earth elements, is coated with a photosensitive magnetic film with a thickness of 50nm, and is integrated with a micro LED array.

2. The high-performance common-mode suppressor of CAN FD using an amorphous material according to claim 1, characterized in that: The amorphous thin sheet of the magnetic field folding resonance core is made of iron-based amorphous material, which contains 60-75% iron, 15-20% boron, 8-12% silicon, 0.5-2% trace cobalt, and the rest are inevitable impurities.

3. The high-performance common-mode suppressor of CAN FD using an amorphous material according to claim 1, characterized in that: The spiral fiber of the spin waveguide coil is prepared by electrospinning technology, the fiber diameter is 1-10 μm, and the spiral angle is 45°-60°.

4. The high-performance common-mode suppressor of CAN FD using an amorphous material according to claim 1, characterized in that: The low-temperature liquid metal in the liquid topological insulating layer is a gallium-based alloy, containing 70% gallium, 25% indium, and 5% tin. The two-dimensional topological material is a single-layer graphene, and the graphene thickness is 0.34 nm.

5. The high-performance common-mode suppressor of CAN FD using an amorphous material according to claim 1, characterized in that: The transparent polymer matrix of the optical magnetic coupling shielding shell is polymethyl methacrylate, the rare earth elements doped are 5% erbium and 3% ytterbium, and the photosensitive magnetic film is doped zinc oxide.

6. The high-performance common-mode suppressor of CAN FD using an amorphous material according to claim 1, characterized in that: The common mode suppressor further comprises a time domain noise prediction unit, which comprises an ultrafast response transistor array based on carbon nanotubes and a memristor based on titanium oxide, and is used for predicting noise waveforms and adjusting suppression strategies.

7. The high-performance common-mode suppressor of CAN FD using an amorphous material according to claim 1, characterized in that: The magnetic core is a multi-phase magnetic core switcher, which is composed of a composite of ferrite magnetic particles and polycaprolactone phase change polymer, and the phase change points are 50° C. and 80° C. respectively.

8. The high-performance common-mode suppressor of CAN FD using an amorphous material according to claim 1, characterized in that: The processing technology of the common mode suppressor is as follows: Sp1: Preparation of magnetic field folding resonance core: amorphous thin film is deposited on the substrate by vapor deposition technology to form an initial thin film with a thickness ranging from 100nm to 50nm, a micro-resonant cavity is etched on the surface of the film by femtosecond laser induced self-assembly technology, and multiple layers of thin films are pressed into a core structure by plasma activated bonding technology, and the magnetic domains of each layer of thin films in the core are aligned by pulsed magnetic field technology; Sp2: Preparation of spin waveguide coils: Electrospinning technology is used to prepare micron-scale fibers as the base material of the coils. The fibers are processed into a spiral structure by thermal stretching and twisting technology. Electrochemical deposition technology is used to coat the surface of the spiral fibers with a spin polarization material of 50 nm in thickness. Micro-spinning technology is used to twist multiple spiral fibers into a spin waveguide coil. Sp3: Preparation of liquid topological insulating layer: Two-dimensional topological materials are prepared by chemical vapor deposition technology. The topological materials are mixed evenly with liquid metals with an operating temperature range of 20°C to 100°C in an ultrasonic field. The mixture is encapsulated outside the wire using microfluidics technology to form an insulating layer. Sp4: Preparation of optical-magnetic coupling shielding shell: A transparent polymer matrix doped with rare earth elements is prepared by the sol-gel method, a photosensitive magnetic film with a thickness of 50 nm is deposited on the inner surface of the matrix by magnetron sputtering technology, and a micro-LED array is installed on the matrix using a high-precision patch device; Sp5: Preparation of the time-domain noise prediction unit: A 20nm thick memristor element was prepared by atomic layer deposition technology, an ultrafast response transistor array was prepared by chemical vapor deposition combined with photolithography technology, and the memristor and transistor array were integrated on the substrate surface using wet transfer technology; Sp6: Preparation of multiphase magnetic core switcher: Magnetic particles are prepared by coprecipitation, the magnetic particles are mixed with phase change polymers and polymerized to form a composite material, phase change microcapsules are prepared by interfacial polymerization, and mixed with the composite material to form a composite material; Sp7: Assembly and packaging of common-mode suppressor: Use automated winding equipment to wind the spin waveguide coil around the magnetic field folding resonance core, use microfluidics technology to wrap the liquid topological insulation layer around the outside of the coil, cover the assembled magnetic core and coil structure with an opto-magnetic coupling shielding shell, fix the time domain noise prediction unit to the surface of the magnetic core through wet transfer technology, integrate the multi-phase magnetic core switcher with the overall structure, and use intelligent temperature-controlled epoxy injection molding material to finally package the entire assembly.

Images