Definition and classification of 1. switching power supply

Switching power supply is a kind of high frequency pulse width modulation (PWM) or high frequency pulse frequency modulation (PFM) Technology, the power supply method that converts AC voltage into low-voltage DC. Switching power supply is widely used in various electronic equipment with the characteristics of small size, light weight and high efficiency, and it is an indispensable power supply mode for the rapid development of electronic information industry.。

According to different output characteristics and functions, switching power supplies can be divided into the following categories：

DC/DC (DC/DC) Converter: A switching power supply that converts one DC voltage into another DC voltage, commonly used in automobiles, aerospace, communications and other fields.

DC/Communication (DC/AC) Inverter: A switching power supply that converts DC voltage into AC voltage, commonly used in solar photovoltaic, wind power generation, emergency lighting and other fields.

Communication/DC (AC/DC) Rectifier: A switching power supply that converts AC voltage into DC voltage, commonly used in computers, household appliances, industrial control and other fields.

Communication/Communication (AC/AC) Inverter: A switching power supply that converts one AC frequency to another, commonly used in air conditioners, refrigerators, washing machines and other fields.

2. Switching Power Supply Market Size

According to data from the Champ Consulting Group,2022In, the global switching power supply market reached349.2billion dollars, with a growth rate6.7%; China switching power supply market size reached204.2billion yuan (approx.31.5billion dollars), with a growth rate7.5%。

expected2023At the end of the year, as the effects of epidemic prevention and control gradually became apparent, and5G, new energy vehicles, intelligent manufacturing and other emerging areas of rapid development, the global and China's switching power supply market will return to a higher growth rate, respectively.8.2%and9.5%The market size will reach2,120Billions of dollars and870billion yuan.

Competitive landscape of 3. switching power supply

The competitive landscape of the switching power supply industry can be analyzed from two aspects, one is product competition, and the other is enterprise competition.

From the point of view of product competition, the main competitive factors of switching power supply include price, performance, quality, service and so on. Due to the relatively low technical threshold of switching power supplies, there are a large number of low-end products on the market, resulting in fierce price competition and low product profits. At the same time, with the diversification and personalization of customer demand, the performance, quality and service of switching power supply have become important competitive factors. Therefore, switching power supply products need to continuously improve their comprehensive competitiveness to meet market demand.

From the point of view of enterprise competition, There are a large number of companies in the switching power supply industry, but the concentration is not high. According to the Champ Consulting GroupThe data shows that,2022The market concentration of China's switching power supply industry is low, and the total market share of the top ten companies is about 25%., which topped the list was Taiwan Meida Electronics (MEAN WELL), with a market share of 6%. Followed by Taiwan Delta Electronics (Delta), Hitachi, Japan (Hitachi), Emerson, USA (Emerson), China's Huawei (Huawei)), ZTE (ZTE), Honglida (Huntkey), Pengding Holdings (Pengding), Kelu Electronics (Kelu) and other well-known enterprises.It can be seen that there is a certain degree of international competition in the switching power supply industry, and domestic companies need to strengthen their independent innovation capabilities, enhance brand influence, and expand market share.

Upstream and downstream industry chain of 4. switching power supply

Switching power supply as a basic product, its upstream and downstream industry chain involves many fields. Its upstream mainly includes components, materials, equipment and other suppliers, its downstream mainly includes a variety of end applications.

From the upstream point of view, the components required for switching power supply mainly include integrated circuits (IC), power devices, transformers, capacitors, inductors, etc. Integrated circuits and power devices are the core components that affect the performance and cost of switching power supplies. At present, there is still a certain gap in these two aspects, mainly relying on imports. Materials are mainly copper wire, iron core, magnetic powder and so on. Equipment is mainly automated production lines, testing instruments and so on.

From the downstream point of view, switching power supplies are widely used in various terminal equipment, such as computers, communications, consumer electronics, industrial control, medical equipment, automotive electronics, new energy, etc. Among them, computers and communications are currently the largest application areas, occupying about60%market share. With5GWith the rapid development of network and data center, the demand for switching power supply in these two fields will continue to grow. Consumer electronics is a more mature and stable application area, occupying about20%market share. With the popularity of smart phones, tablet computers, smart wear and other products, the requirements for switching power supply in this field are getting higher and higher. Industrial control is a more decentralized and diverse field of application, occupying about10%market share. With the industry4.0And the promotion of intelligent manufacturing, the demand for switching power supply in this field will gradually increase. Medical equipment is a more specific and rigorous application area, occupying about5%market share. This field has higher requirements for the safety, reliability and stability of switching power supply. Automotive electronics and new energy are two relatively new and rapidly developing application areas, each occupying about2.5%market share. With the development of new energy vehicles, intelligent network vehicles, driverless vehicles and other technologies, the demand for switching power supply in these two fields will show explosive growth.

Technical Development of 5. Switching Power Supply

The technical development of switching power supply is mainly reflected in the following aspects:

High frequency: high frequency is an important way to improve the efficiency and power density of switching power supply and reduce the volume and weight of switching power supply. At present, the working frequency of switching power supply has been from tens of kilohertz (kHz) to hundreds of kilohertz or even megahertz (MHz). High frequency brings the miniaturization of transformers, capacitors, inductors and other components, as well as the reduction of switching losses, conduction losses, core losses, etc., thus improving the overall performance of the switching power supply.

Digitization: Digitization is the use of digital signal processing (DSP) Technology, a way to control and manage switching power supplies. Digitization can realize the intelligent, network and modularization of switching power supply, and improve the reliability, flexibility and compatibility of switching power supply. Digitization can also realize the fault diagnosis, protection, monitoring and other functions of the switching power supply, and improve the safety and stability of the switching power supply.

Integration: Integration is a way to integrate multiple components or functions in a switching power supply on a chip or module. Integration can realize the simplification, standardization and standardization of switching power supply, and reduce the cost and complexity of switching power supply. Integration can also achieve interconnection between switching power supplies or with other devices to improve the adaptability and scalability of switching power supplies.

Application field of 6. switching power supply

As a basic product, switching power supply has a wide range of applications, covering various industries and fields. The following are some representative or potential application areas:

The 5G network:5GNetwork refers to the fifth generation of mobile communication networks, is the following.4GThe new generation of wireless communication technology after the network has the characteristics of high speed, low delay and large capacity.5GThe network puts forward higher requirements for communication equipment such as base station equipment and data center equipment, including the requirements for switching power supply.5GThe network needs more and denser base station equipment, which requires smaller and lighter switching power supplies.5GThe network needs a higher data transmission rate, which requires a more efficient and stable switching power supply.5GThe network needs lower energy consumption and carbon emissions, which requires more energy-saving and more environmentally friendly switching power supply. Therefore,5GNetwork is an important application field of switching power supply, and it is also a huge market opportunity.

New energy vehicles: New energy vehicles refer to vehicles that use new power systems, do not rely on traditional fuels, or use traditional fuels but adopt new driving methods, mainly including pure electric vehicles, hybrid vehicles, and fuel cell vehicles. New energy vehicles are an effective way to deal with the energy crisis and environmental problems, and are also the development direction of the future automobile industry. The demand for switching power supplies for new energy vehicles is mainly reflected in the following aspects: First, the battery management system (BMS), a switching power supply is required to realize the functions of charge and discharge control, temperature control, and balance control of the battery pack; the second is the drive control system (DCS), a switching power supply is required to realize the functions of motor speed control, torque control, fault protection, etc.; the third is the auxiliary system (AUX), a switching power supply is required to realize the power supply and adjustment functions of air conditioning, lighting, audio and other equipment. Therefore, new energy vehicles are an emerging application field of switching power supplies and a rapidly growing market demand.

Intelligent manufacturing: Intelligent manufacturing refers to the use of information technology, network technology, artificial intelligence technology, etc., to achieve the automation of the manufacturing process, digital and intelligent a way. Intelligent manufacturing is the realization of industrial4.0and made in China2025It is also an inevitable choice to enhance the competitiveness and innovation of the manufacturing industry. The demand for switching power supply in intelligent manufacturing is mainly reflected in the following aspects: first, industrial robots, which need switching power supply to realize the functions of motion control, visual control, communication control and so on; second, industrial Internet of things (IIoT), a switching power supply is required to realize the power supply and connection functions of various sensors, actuators, controllers and other equipment; the third is the industrial cloud platform (ICP), a switching power supply is required to realize the power supply and protection functions of various servers, memory, routers and other equipment. Therefore, intelligent manufacturing is an important application field of switching power supply, and it is also a growing market demand.

Policy Environment for 7. Switching Power Supplies

As a basic product, the policy environment of switching power supply is mainly affected by the relevant policies of the state and industry. Here are some influential or guiding policies:

"National Energy Saving and New Energy Automobile Industry Development Plan (2021-2035Year): The plan is proposed2035Build a world-class new energy vehicle industry system in, form an automobile structure with new energy vehicles as the main body, achieve the goal of high-quality development of the automobile industry, and put forward key tasks such as strengthening core technological innovation, promoting industrial coordinated development, and improving infrastructure construction. The plan provides policy support and development direction for the field of new energy vehicles, and also provides market opportunities and technical requirements for switching power supplies in this field.

"National Integrated Circuit Industry Development Promotion Outline": the outline proposed.2030To build an internationally competitive integrated circuit industry system in, to achieve major breakthroughs in the fields of integrated circuit design, manufacturing, packaging and testing, equipment and materials, to meet the needs of national security and economic and social development, and to strengthen top-level design and optimize industrial layout, Increase policy support, promote international cooperation and other key measures. The outline provides policy guidance and development goals for the field of integrated circuits, and also provides technical support and market demand for switching power supplies in this field.

"Action Plan for High-quality Development of Electronic Information Manufacturing Industry (2021-2025Year): The plan is proposed.2025Achieve high-quality development of the electronic information manufacturing industry, form a number of internationally competitive backbone enterprises and innovation platforms, create a number of internationally influential brands and standards, and propose to accelerate technological innovation, promote industrial upgrading, and deepen open cooperation And other key tasks. The plan provides policy incentives and development paths for the electronic information manufacturing industry, and also provides market space and technical requirements for switching power supplies in this field.

"Guiding Opinions on Promoting the Healthy Development of Switching Power Supply Industry": The guiding opinions are issued by China Electronics Industry Standardization Technology Association (CESA) The industry guidance document issued by the company aims to standardize the development of the switching power supply industry, improve the quality and level of switching power supply products, and put forward guidance on strengthening standard formulation, improving quality supervision, promoting technological innovation, and expanding application fields. The guidance provides industry norms and development suggestions for the switching power supply industry, and also provides a reference basis and development direction for switching power supply enterprises.

Development Trend of 8. Switching Power Supply

According to the above evaluation of the development status of the switching power supply industry, combined with the data and analysis of the Shangpu Consulting Group, the following development trends can be predicted:

The market size will continue to grow, but the growth rate will gradually slow down. With the increasing demand for switching power supply in various application fields, the market size of switching power supply will maintain a high growth level.2025The year will reach2,800billion yuan. However, due to increased market saturation and a surplus of low-end products, market growth will gradually slow down and is expected2025The year will drop6.5%。

The product structure will be further optimized, and high-end products will dominate. With the diversification and personalization of customer needs, as well as the continuous improvement of technical level, switching power supply products will develop in the direction of high-frequency, digital and integrated, and high-end products will occupy a dominant position. At the same time, according to the special needs of different application areas, switching power supply products will form more market segments and differentiated products to meet the customized needs of customers.

Enterprise competition will be more intense, industry concentration will gradually increase. With the intensification of market competition and the improvement of customers' requirements for brand, quality and service, switching power supply enterprises will face greater challenges and pressures. On the one hand, enterprises need to strengthen the ability of independent innovation, improve product performance and quality, increase the added value of products, and improve product competitiveness. On the other hand, companies need to strengthen market development capabilities, expand application areas, increase market share, and increase market influence. It is expected that in the next few years, the switching power supply industry will see the rise of a number of advantageous companies and the elimination of a number of disadvantaged companies, and the industry concentration will gradually increase.

Technological innovation will continue to advance, new technologies and new products will continue to emerge. With the progress of science and technology and the development of society, switching power supply technology will continue to advance, new technologies and new products will continue to emerge. For example, based on gallium nitride (GaN) and silicon carbide (SiC) and other new power semiconductor materials, with higher frequency, efficiency and power density, can achieve smaller, lighter and stronger switching power supply. The switching power supply based on wireless charging technology can realize contactless, wireless and convenient power supply, and can be used in automobile, medical, consumer and other fields. The switching power supply based on artificial intelligence technology can realize the intelligent control, management and optimization of the switching power supply, and can improve the reliability, flexibility and compatibility of the switching power supply.

9. epilogue

Switching power supply is a basic product, and its development is affected by many factors. This report from the definition of switching power supply, classification, market size, competitive landscape, upstream and downstream industry chain, technology development, application areas, policy environment, etc., on2023The development status of switching power supply industry is evaluated and the future development trend is predicted. The report believes that the switching power supply industry has high growth potential and innovation capabilities, but it is also facing challenges such as cost pressure, market competition, and technical barriers. It needs to strengthen independent research and development, improve product quality, expand application fields, and promote industrial coordination. To achieve sustainable development.