Laser devices are integral components across various industries, supporting critical applications in research, manufacturing, medical procedures, and communications. To ensure these lasers operate at peak performance levels and longevity, proactive maintenance and repair measures are essential. This article explores the significance of laser maintenance, common issues faced, and strategies to uphold the efficiency and reliability of laser systems.

Common Laser Issues: 

a. Power Fluctuations: Laser systems may exhibit power fluctuations due to factors like aging components, contamination, or unstable power supplies, impacting performance consistency. 

b. Optical Misalignment: Misalignment of optical components can degrade beam quality and accuracy, affecting the laser's overall functionality. 

c. Cooling System Problems: Efficient cooling is vital for laser operation. Issues like coolant leaks, pump failures, or clogged cooling channels can lead to overheating and decreased performance. 

d. Worn-out Components: Laser components such as mirrors, lenses, or crystals may degrade over time, impacting beam quality and power output.

Laser Maintenance Strategies: 

a. Regular Cleaning: Routine cleaning of optical components and the laser cavity helps prevent contamination buildup, ensuring consistent performance. 

b. Calibration Checks: Periodic calibration and alignment checks maintain optical precision, beam quality, and system accuracy. 

c. Cooling System Maintenance: Monitoring and servicing the cooling system prevent overheating issues, ensuring stable laser performance. 

d. Component Inspection and Replacement: Regular inspection and timely replacement of worn-out components sustain optimal laser functionality. 

e. Firmware and Software Updates: Installing the latest firmware and software updates can enhance laser system performance and address potential vulnerabilities.

Professional Laser Repair Services: 

a. Expert Diagnosis: Trained technicians conduct thorough diagnostics to identify underlying issues and recommend tailored repair solutions. 

b. Precision Repairs: Skilled professionals employ specialized tools and techniques to perform intricate repairs on laser systems, ensuring accuracy and reliability. 

c. Compliance with Safety Standards: Adherence to safety protocols during repairs protects both the technicians and the integrity of the laser system. 

d. Post-Repair Testing: Rigorous testing post-repair validates the efficacy of the maintenance procedures, guaranteeing optimal performance restoration.

Proactive maintenance and timely repair interventions are crucial for preserving the efficiency, reliability, and longevity of laser systems. By addressing common issues through regular cleaning, calibration checks, and timely component replacements, industries can sustain peak laser performance. Leveraging professional repair services with expertise in diagnostic analysis, precision repairs, and safety compliance further ensures the seamless operation of laser devices across diverse applications. Prioritizing laser maintenance not only enhances system performance but also optimizes operational efficiency and facilitates the continued innovation and advancement in laser technology domains.

In the realm of modern telecommunications and data transmission, the utilization of fiber optic cables has become increasingly prevalent due to their superior data transfer capabilities. These cables are the backbone of our interconnected world, facilitating the swift and efficient transmission of vast amounts of information across great distances. However, to ensure optimal performance and reliability of fiber optic networks, regular inspection and maintenance are imperative.

Enter the fiber optic cable inspection tool, a crucial device designed to assess the integrity and quality of fiber optic connections. These inspection tools come in various forms, such as fiber optic inspection microscopes, visual fault locators, and optical time domain reflectometers (OTDRs). Each tool serves a specific purpose in the comprehensive evaluation of fiber optic networks.

Fiber optic inspection microscopes are instrumental in examining the end faces of fiber optic connectors to detect any contaminants or defects that may impair signal transmission. By providing magnified views of the connector surfaces, these microscopes enable technicians to identify and rectify issues promptly, ensuring optimal signal quality and network performance.

Visual fault locators are another essential tool in the arsenal of fiber optic technicians. These handheld devices emit visible laser light into the fiber optic cable, allowing technicians to locate breaks, bends, or other faults in the cable by tracing the light leakage along the cable’s path. Visual fault locators facilitate quick and precise identification of faults, thereby expediting repair processes and minimizing network downtime.

For more in-depth analysis of fiber optic networks, optical time domain reflectometers (OTDRs) offer comprehensive testing capabilities. OTDRs emit short pulses of light into the fiber optic cable and analyze the backscattered light to provide detailed insights into the cable’s attenuation, splice losses, and connector quality. By generating accurate measurements of signal loss and reflectivity along the cable, OTDRs help technicians pinpoint the exact location of faults or degradation in the network.

In conclusion, fiber optic cable inspection tools play a pivotal role in maintaining the functionality and reliability of fiber optic networks. By enabling technicians to conduct thorough inspections and diagnostics, these tools facilitate proactive maintenance practices that prevent network failures and ensure uninterrupted data transmission. As the demand for high-speed, high-capacity data networks continues to grow, the importance of efficient fiber optic cable inspection tools cannot be overstated, as they are essential for upholding the integrity of our increasingly interconnected world.

A fiber optic stripper is a specialized tool employed for the removal of protective coatings surrounding optical fibers to facilitate splicing, termination, or connectorization processes. These coatings serve to protect the fragile glass fibers within, ensuring their integrity during handling and installation. However, for effective connectivity and transmission of optical signals, these coatings must be precisely removed at specific lengths without compromising the underlying fiber.

Large diameter fiber fusion splicers play a crucial role in maintaining and repairing laser devices, exemplified by the remarkable performance of the S400LDF fusion splicer in the domain of laser repair. These cutting-edge machines not only reduce costs but also significantly enhance operational efficiency in the repair process.

At the heart of laser repair lies the delicate task of splicing optical fibers with precision and reliability. The extensive capabilities of large Diameter fiber fusion splicers are instrumental in achieving this goal. The S400LDF fusion splicer, renowned for its superior performance, stands out as a prime example of how advanced technology can revolutionize laser maintenance procedures.

By seamlessly fusing optical fibers with large core diameters, such as those found in laser devices, the S400LDF fusion splicer ensures optimal alignment and minimal signal loss during the repair process. This precision is critical in ensuring the functionality and performance of the repaired laser equipment, maintaining the integrity of the system while optimizing its capabilities.

Moreover, the S400LDF fusion splicer excels in streamlining repair operations, thanks to its user-friendly interface and efficient workflow. Technicians can swiftly splice fibers, align cores accurately, and test connections with ease, saving valuable time and resources in the repair process. The machine's automated features and high-speed operation significantly boost productivity, allowing for swift turnaround times in laser device maintenance.

In practical terms, the S400LDF fusion splicer's impact on laser repair operations is profound. By reducing downtime and enhancing repair precision, this equipment plays a pivotal role in keeping laser systems operational and efficient. The seamless integration of large core fusion splicers in laser repair machines not only elevates the quality of repairs but also contributes to cost-effectiveness and overall performance optimization.

The incorporation of large diameter fiber fusion splicers such as the S400LDF in laser repair machines under scores their indispensable role in the maintenance of laser devices. These advanced tools exemplify the marriage of precision engineering and technological innovation, enabling technicians to perform intricate splicing tasks with unparalleled accuracy and efficiency.  As the demand for reliable laser repair solutions grows, large core fusion splicers are set to remain at the forefront, driving advancements in laser technology maintenance and repair practices.

Title: The Optical Fiber Inspection Tool: Visual Fault Locator (VFL)

Introduction:
In the realm of modern telecommunications, the integrity of optical fiber networks is paramount. To ensure optimal performance and minimize downtime, the use of advanced tools such as Visual Fault Locators (VFLs) has become indispensable. This article sheds light on the significance of VFLs in the maintenance and troubleshooting of optical fiber systems.

Understanding the Visual Fault Locator (VFL):
A Visual Fault Locator, commonly known as a VFL, is a compact, handheld device engineered to detect and locate faults in optical fibers swiftly. Equipped with a powerful laser diode, the VFL emits a bright beam of red light, making it easier to detect breaks, bends, or other imperfections within the fiber. The light emitted by the VFL can traverse long distances within the fiber, enabling technicians to pinpoint faults accurately.

Applications of VFLs:
VFLs find extensive utility in various scenarios within the realm of optical fiber network management. During installation, VFLs assist in verifying the continuity of fibers and identifying any potential issues that could impair signal transmission. In maintenance tasks, technicians use VFLs to swiftly locate faults, reducing the time required for diagnostics and repairs. Furthermore, VFLs are invaluable tools in detecting issues such as macrobends or damaged connectors that are not easily visible to the naked eye.

Benefits of VFLs:
The utilization of VFLs offers several key advantages in the maintenance and troubleshooting of optical fiber networks. These benefits include:

1. Rapid Fault Detection: VFLs facilitate quick and precise fault location, reducing downtime and enhancing network reliability.
2. Ease of Use: VFLs are portable and user-friendly devices, making them accessible even to technicians with varying levels of expertise.
3. Cost-Efficiency: By enabling efficient fault identification, VFLs help organizations save resources by streamlining maintenance activities.
4. Enhanced Network Performance: Regular VFL inspections contribute to improved network performance and longevity by addressing issues proactively.

Conclusion:
In conclusion, the Visual Fault Locator (VFL) stands as a crucial instrument in the arsenal of tools utilized for the maintenance and troubleshooting of optical fiber networks. Its ability to swiftly detect faults, optimize network performance, and minimize downtime underscores its importance in the realm of modern telecommunications. As the demand for high-speed, reliable data transmission continues to rise, the role of VFLs in ensuring the integrity of optical fiber systems remains indispensable.

In the modern power electronics field, transformers are key devices for voltage conversion, electrical energy transmission, and distribution. Their performance directly affects the stable operation of the entire system. As a core structural component of transformers, the bobbin is like the framework of a building, playing a crucial role in the transformer's performance. Today, let's delve into the world of transformer bobbins and explore the mysteries of different types such as EF, EFD, ER, EE, POT, UU, EI, and PEE.

1. Basic Understanding of Bobbins

(1) Definition and Function of Bobbins

A bobbin, commonly known as a framework or spool in Chinese, is a key component in transformers used to support and wind coils. It not only provides physical support for the coils to ensure the accuracy of the coil's shape and position during winding but also serves as electrical isolation and insulation. This prevents short circuits between coils and between coils and the iron core, ensuring the safe and reliable operation of the transformer. Figuratively speaking, the bobbin is like the "skeleton" of the transformer, giving it its basic structural form while providing the necessary conditions for efficient electrical energy conversion.

(2).Overview of Bobbin Classification Methods

①.Classification by Magnetic Core Type: This is the most common classification method, as different magnetic core types correspond to different transformer application scenarios and performance requirements. Common types include EI, EE, EF, EPC, ER, RM, PQ, UU, etc. Each type can be further subdivided by magnetic core size, such as EE5, EE8, EE13, EE19, etc. This classification ensures that the bobbin of a high frequency electronic transformer can perfectly match a specific magnetic core, thereby maximizing the transformer's performance.

②.Classification by Shape: Bobbins can be divided into vertical and horizontal types based on shape. Vertical bobbins have pins perpendicular to the mounting plane and are typically used in compact spaces where vertical transformer installation is required, such as in power modules of small electronic devices. Horizontal bobbins have pins parallel to the mounting plane, occupying more horizontal space on the circuit board. However, they have advantages in applications with height restrictions, such as the bobbin of the PEE64 power adapter transformer in some flat-type power adapters.

③.Classification by Operating Frequency: Based on the transformer's operating frequency, bobbins can be categorized into high-frequency bobbins and low-frequency bobbins. Here, "frequency" refers to the number of periodic changes in the transformer during operation (measured in Hertz (Hz), often also in kilohertz (kHz), megahertz (MHz), or gigahertz (GHz)), not the number of uses. High-frequency bobbins are usually used in high-frequency transformers, such as the bobbin of the EE13 switching power supply transformer, with operating frequencies up to tens of kHz or even several MHz. The design and material selection of such bobbins must consider high-frequency characteristics, such as reducing high-frequency losses and improving insulation performance. Low-frequency bobbins are mainly used in low-frequency transformers, such as power frequency transformers, with typical operating frequencies of 50Hz or 60Hz. Low-frequency bobbins have relatively lower requirements for high-frequency characteristics but may have higher demands for mechanical strength and stability.

④.Classification by Pin Usage: Bobbins are divided into through-hole bobbins (DIP) and surface-mount bobbins (SMD) based on pin usage. Through-hole bobbins have long pins that can be directly inserted into the through-holes of the circuit board for soldering. This mounting method offers high mechanical strength and ease of maintenance and replacement but occupies more space on the circuit board. Surface-mount bobbins have short pins or use solder pads with Surface Mount Technology (SMT), allowing direct mounting on the surface of the circuit board. They have the advantages of small space occupation and suitability for high-density assembly, and are widely used in SMD-EFD20 home appliance transformer bobbins in modern home appliances.

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1.EF Type Bobbin

(1) Structural Features: The EF type Bobbin is shaped like a combination of the letters "E" and "F", typically featuring three or more pins, which are distributed on one or both sides of the Bobbin. Its magnetic core is E-shaped, with a wider central column and narrower side columns. This structural design enables better control of magnetic field distribution during coil winding, thereby improving the coupling efficiency of the transformer. EF type Bobbins come in various size specifications, with common ones including EF10, EF12, EF16, EF20, and EF25. Different sizes are suitable for transformers of different power levels. For instance, EF10 is applicable to transformers with lower power and is often used in power modules of small electronic products; while EF25 can be used in bobbins of high-power switching power supply transformers.

(2) Application Scenarios: EF type Bobbins are widely used in fields such as switching power supplies, DC-DC converters, AC-DC inverters, LED drivers, LCD power control, laptop power supplies, digital lighting, automotive navigation systems, and security systems. In these applications, EF type Bobbins, with their excellent magnetic field control capability and high power density, can effectively realize the conversion and transmission of electrical energy, meeting the power supply requirements of different devices. Taking the EF16 LED driver transformer as an example, the EF type Bobbin can be used to drive high-power LED lamp beads. By precisely controlling the parameters of the transformer, it achieves stable regulation of the LED current, ensuring the normal operation and long operational life of LED lamps.

(3). Performance Advantages: EF type Bobbins have high magnetic permeability, which allows them to achieve a large inductance in a small volume, thereby improving the power density of the transformer. Meanwhile, their structural design helps reduce leakage inductance and improve the efficiency of the transformer. In addition, EF type Bobbins have high versatility, with a variety of sizes and pin configurations available on the market, facilitating engineers to select and apply them according to different design requirements. Taking the EF20 electronic product charger transformer as an example, the transformer, relying on the three major advantages of the Bobbin—high magnetic permeability, low leakage inductance, and strong versatility—achieves a balance of volume, efficiency, and cost in the 10-18W portable fast-charging field, making it one of the core components in fast chargers for devices such as mobile phones and tablets.

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ER-Type Bobbin:Structure, Application Scenarios and Performance Advantages

1. Structural Features

The magnetic core of the ER-type Bobbin is E-shaped, but its appearance is different from that of EF-type and EFD-type bobbins. The magnetic core of the ER-type Bobbin is usually relatively flat, with the height of the middle column and side columns being relatively low. This design allows the ER-type Bobbin to occupy less space in the vertical direction, making it more suitable for application scenarios with height restrictions.

The number and layout of pins of the ER-type Bobbin vary according to different models and application requirements. The common types include through-hole type and surface-mount type (SMD), such as the ER35 transformer bobbin and SMD-ER11.5 switching power supply transformer. Its size specifications include ER8, ER10, ER12, ER16, ER20, etc. ER-type Bobbins of different sizes are suitable for transformers with different power and space requirements.

2. Application Scenarios

ER-type Bobbins are often used in fields such as ER28 DC-DC conversion transformers, switching power supplies, and high-frequency transformers. They are especially widely applied in miniaturized electronic products that have strict requirements on the volume and height of transformers.

For example, in portable power supply devices like mobile phone chargers and tablet chargers, the ER-type Bobbin, relying on its flat structural design, can achieve efficient power conversion in limited space, meeting the miniaturization and high-performance requirements of devices for power supplies.

3. Performance Advantages

The flat structural design of the ER-type Bobbin enables it to have lower winding resistance and inductive loss in high-frequency electronic transformer applications, which can effectively improve the high-frequency performance and efficiency of transformers.

At the same time, due to its compact size, it can save space in miniaturized electronic products, which is conducive to realizing the slim and lightweight design of products.

In addition, the ER-type Bobbin also has strong versatility. There are various sizes and pin configurations available on the market, facilitating engineers in design and component selection.

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In the composition of a transformer, the bobbin (framework) is rarely mentioned as frequently as the coil or magnetic core, yet it is a key component ensuring the stable operation of transformers. It not only undertakes the important responsibility of fixing the coil but also serves as a core barrier for isolating high and low voltages and resisting high-temperature erosion. The selection of bobbin materials directly affects the safety, stability, and service life of transformers. Today, we focus on our company's exclusive material solutions for products — from selection standards to quality control details, we will comprehensively explain how our company builds product competitiveness with high-quality materials.

I. Our Star Products: Precise Material-Scenario Matching Cases

The bobbin material for each transformer model of our company is the closed-loop outcome of "scenario demand → material R&D → testing and verification → mass application". The following three star products’ material solutions can intuitively demonstrate our company's customized advantages:

1. EE16 High-Frequency Transformer: Exclusive PHENOLIC Bobbin, a Stable Choice for Industrial High-Frequency Scenarios

The EE16 high-frequency transformer focuses on industrial control power supplies and small inverters. It needs to operate continuously under high frequency (20kHz-100kHz) and high voltage (1kV-3kV). Our company exclusively equips it with a customized phenolic resin bobbin:

Material Adaptability: For high-frequency working conditions, the dielectric loss of the phenolic resin is strictly controlled below 0.008, avoiding temperature rise caused by dielectric loss heating under high frequency (the measured hot-spot temperature of the transformer is reduced by 5-8℃); the breakdown voltage of 18kV/mm can cope with occasional voltage fluctuations in industrial scenarios and eliminate the risk of electric leakage.

Practical Application Value: The EE16 transformer equipped with this exclusive phenolic bobbin can operate stably for 6 consecutive years in industrial control cabinets (the industry average is 4 years), with a failure rate as low as 0.3%. It has become a designated supporting product for over 30 industrial equipment manufacturers.

2. GU25 Pot-Type Transformer bobbin: Exclusive PA66 Bobbin, a Durable Option for Automotive Scenarios

The GU25 pot-type transformer focuses on on-board power supplies and smart home controllers. It needs to withstand continuous vibration (5-500Hz) during vehicle operation and installation impacts. Our company equips it with an exclusive nylon 66 (PA66) bobbin reinforced with 25% glass fiber:

Material Adaptability: The 25% glass fiber formula enables the bobbin to have an impact strength of 8kJ/m². After the on-board vibration test (50Hz/2g acceleration for 100 hours), the structure remains undistorted and the pins do not loosen; the heat distortion temperature of 260℃ can cope with the instantaneous high temperature of 120℃ in the on-board environment and prevent the bobbin from softening.

Practical Application Value: This GU25 transformer has passed the IATF16949 automotive electronics certification and is compatible with on-board OBC (On-Board Charger) of over 10 automobile manufacturers. In the -40℃~85℃ high-low temperature cycle test, the insulation performance retention rate is 100%, meeting the strict requirements of automotive electronics.

3. EFD20 Flyback Transformer bobbin: Exclusive PM-9630 Bobbin, an Efficiency Expert for Thin-Scenarios

The EFD20 flyback transformer focuses on laptop chargers and LED driver power supplies. It needs to achieve a thin design (thickness <12mm) while bearing a power density of 10W-60W. Our company equips it with a customized modified PM-9630 bobbin:

Material Adaptability: The modified PM-9630 has a flexural strength of 85MPa even in a 0.8mm thin-walled state, without cracking during winding; its optimized fluidity enables precise molding of the thin slot structure of the EFD20, controlling the overall thickness of the transformer at 11.5mm (the industry average for similar products is 13mm). Meanwhile, its long-term temperature resistance of 150℃ can cope with the hot-spot temperature of 140℃ of the flyback transformer.

Practical Application Value: The EFD20 transformer equipped with this bobbin is compatible with laptop chargers of over 5 consumer electronics brands. When operating at full power of 60W, its temperature rise is 6℃ lower than that of similar industry products, and it meets the UL 94 V-0 flame retardant standard, achieving both thinness and safety.

II. Our Material Advantages: Controlling from the Source to Create Value for Customers

Our company's core competitiveness in bobbin materials lies not merely in selecting high-quality materials, but in establishing a complete system of "material R&D - source traceability - full-process quality control":

Exclusive R&D Capability: We have established a material R&D laboratory and customize material formulas for different product scenarios (such as low-dielectric-loss phenolic resin for EE16 and modified PM-9630 for EFD20), breaking the industry pain point of "general materials being used for all scenarios".

Source Traceability Management: We establish traceability files for each batch of materials, recording supplier qualifications, material batch numbers, and performance parameters to ensure materials are traceable and accountable.

Full-Process Quality Control: From raw material warehousing (sampling and performance testing) → production process (real-time monitoring of molding parameters) → finished product delivery (100% appearance inspection + 10% performance sampling inspection), each link is controlled in accordance with standards higher than the industry average to ensure the stable material quality of the final products.

Choosing a transformer essentially means choosing "material reliability". Our company has always adhered to the belief that "high-quality materials create high-quality products". Through exclusive customized bobbin material solutions, we provide customers in different scenarios with transformer products that are "more stable, more durable, and more adaptable".

Before cooperation, we can provide customers with test samples. Of course, we also offer product customization services. Feel free to contact us if you have any needs.

Contact us today to explore bulk orders or request technical specifications.

Email: sales008@mycoiltech.com

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Name：Alex~Mycoiltech

Coaxial Cable power supply (PoC) technology simultaneously transmits data and power through a single coaxial cable, significantly reducing the number of wiring required for on-board systems such as cameras and high-definition displays, and lowering the overall weight and complexity of the vehicle. This technology plays a crucial role in meeting fuel efficiency standards, supporting an increasing number of camera configurations, and enhancing the display size and resolution of vehicles.

Simplified wiring makes vehicles easier to produce and maintain. The adoption of coaxial cables can also effectively alleviate the common electromagnetic interference (EMI) problems in the communication and control systems of high-speed automobiles, thereby enhancing the reliability and consistency of critical signal transmission.

With the wide application of high-resolution radars, lidars and cameras in advanced driver assistance systems (ADAS) and autonomous driving, the demand for high-speed connectivity in vehicles continues to grow. The new generation of PoC technology can also support standards such as FDD-Link, meeting the high bandwidth requirements of real-time driving interfaces.

As a mature and reliable technology, PoC has been incorporated into various standards, including proprietary solutions of chip manufacturers and open-source implementations of standard organizations. Different solutions offer different signal transmission speeds and power supply capabilities to meet diverse application requirements.

Some standards already existed before the popularization of PoC technology. For example, FDD-Link III and subsequent versions are compatible with PoC; The Gigabit Multimedia Serial Link (GMSL) standard also integrates PoC functionality in its new generation specification. GMSL1 itself does not support PoC, but GMSL2 and GMSL3 have implemented support for it.

SerDes and PoC

SerDes are the core components in PoC implementation, capable of superimposing high-frequency digital signals and DC power supplies on the same coaxial cable for transmission. SerDes convert high-speed parallel signals from devices such as cameras and lidars into serial data streams that can be transmitted over a single line, while PoC further integrates power transmission to achieve data and power supply sharing cables. Many PoC systems also support bidirectional communication through Frequency Division multiplexing (FDM).

The advantages of two-way communication

In a PoC system, the forward channel (downlink) and the backward channel (uplink) transmit data in different frequency bands within the same cable through FDM technology. The forward channel typically operates above 50 MHz to 1 GHz and is used to transmit sensor data to the central ADAS system. The backward channel is mostly used for control signals, with a frequency range typically ranging from 1 to 40 MHz. The filter circuits at both ends of the cable are responsible for separating the DC power supply from the bidirectional data signal.

The key role of the filter circuit

The bias three-way inductor in the PoC filter is the core component for effectively separating the DC power supply from high-frequency signals. It can prevent AC signals from interfering with the power supply and suppress the impact of power supply noise on data quality. This inductor exhibits low impedance to direct current and high impedance to alternating current, thereby maintaining signal integrity while injecting power.

To ensure signal quality, the PoC filtering scheme needs to be capable of carrying the supply current while maintaining a high impedance (typically >1 kΩ, compared to the 50 Ω characteristic impedance of coaxial cables) and preventing inductance saturation. The multi-level LC filtering structure can maintain high impedance throughout the entire frequency band, ensuring the signal-to-noise ratio and stability of communication.

Summary

PoC has multiple standards and implementation methods in the automotive field, which helps to reduce system weight, enhance performance, and support two-way data communication among devices such as cameras and radars. Its key technologies include SerDes interfaces and multi-level filter circuits, which jointly promote the progress of vehicles in terms of fuel economy, connection reliability and system integration.