Views: 202 Author: Site Editor Publish Time: 2021-10-23 Origin: Site
Switching power supply industry overview
Switch mode power supply, also known as switching power supply, switching converter, is a high-frequency electric energy conversion device, and a kind of power supply. Its function is to convert a level of voltage into the voltage or current required by the user through different forms of architecture. The input of the switching power supply is mostly AC power or DC power, and the output is mostly equipment that requires DC power.
The research and application of switching power supply began in the 1950s. In the 1960s, switching power supply technology basically took shape. The first civilian standardized switching power supply was born in the 1970s, and in the mid-1980s, a switch power supply that meets global general specifications appeared. With the continuous development of upstream component technology and key power electronics technology, switching power supply technology has achieved rapid development and has rapidly grown into an important basic product in the electronics industry. There are various home light switches facilitating people’s life. The smart wall light switch is gradually replacing the push button wall switch.
Analysis of the development status of China's switching power supply industry
Switching power supply is an important part of the power supply, and there are many application fields, there is no substitute equipment, so the market scale is very large. As of 2017, the market size of China's electrical switches and outlets industry has grown to RMB 132.33 billion, a year-on-year increase of 8.89%. The market size of China's switching power supply industry is expected to reach about 143.13 billion yuan in 2018, an increase of 8.16% year-on-year.
At present, the switching power supply is widely used in almost all electronic equipment due to its small size, light weight and high efficiency. For instance, electrical switch and socket have become necessities in people’s daily life. Electrical switch has become an indispensable power supply method for the rapid development of today's electronic information industry. According to statistics, China's switching power supply accounted for 57% of the total power supply scale in 2017, far exceeding UPS power supplies, inverter power supplies, frequency converters and others.
Analysis of the development trend of China's switching power supply industry
The development of high frequency technology. At present, the rapid development of society has undoubtedly put forward new requirements for the development of switching power supply technology. At this stage, the switching frequency of the switching converter has been improved to a greater extent than before. At the same time, with the increasing frequency, the volume of the switching converter is also in a trend of decreasing, so it also provides an opportunity for the continuous improvement of switching power supply technology.
The development of digital technology. For traditional switching power supplies, the analog signal guides the work of the control part. At this stage, digital control is already the control method adopted by most equipment, and switching power supplies are also the main field of application of digital technology in the future. At this stage, the research of digital power technology has become the main direction of public relations for scientific researchers, and a lot of scientific research results have also been harvested, which undoubtedly played a key role in promoting the development of switching power supply digital technology. Digital light switch is widely used in people’s house light switch now.
Modular technology development. The modular technology here can be divided into two aspects to interpret, one is power devices, and the other is power supply units. Through modular technology, the volume of the switching power supply can be greatly reduced, but in order to not lose the reliability of the power supply system, it is necessary to integrate all the hardware and modularize it into a unit in the form of a chip.