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First, strong market demand is always an important driving force for the development of switching power supplies
Switching power supply technology belongs to power electronic technology. It uses power converter to convert electric energy. After transforming electric energy, it can meet various power requirements. Because of its high efficiency and energy saving, it can bring huge economic benefits, which has attracted the attention of all sectors of society and has been rapidly promoted.
Taking the AC-DC conversion as an example, compared with the traditional phase-controlled power supply using the power frequency conversion technology, the high-frequency rectification power supply using the high-power switch tube is a leap in technology, which not only can easily obtain different voltages. The level, more importantly, is to get rid of the bulky and heavy power frequency transformer and filter inductor and capacitor. Due to the use of high frequency power conversion, the power supply device significantly reduces the size and weight, and is likely to be coordinated with the host volume of the device, and the electrical performance is further improved. Because of this, in 1994, China's former Ministry of Posts and Telecommunications made a major decision, requiring the use of switching power supplies in the communications field to replace phase-controlled power supplies. Practices over the past few years have proven that this decision is completely correct. The use of switching power supplies has saved the country a large amount of copper, steel and floor space. As the conversion efficiency is increased, the energy consumption is reduced, the room temperature of the environment around the power supply is lowered, and the environment of the worker is improved. The widespread use of switching power supplies in China's post and telecommunications departments has greatly promoted its wide application in other fields. It is worth pointing out that the power system DC operating power supply that has appeared in the past two years has been launched for the state investment of 400 billion yuan for the power supply engineering transformation of urban and rural power grids, and to improve the quality of power transmission and distribution. It has begun to adopt switches. The power supply replaces the traditional phase-controlled power supply. Some domestic communication companies such as ZTE have successively launched a series of products.
At present, there are more than 300 independent research and development and production manufacturers of switching power supplies in China, and there are more than ten scales. Domestic switching power supplies have occupied a considerable market. Some large companies such as ZTE's self-developed power series products have been widely recognized, and they have advantages in the power market competition, and a small number of exports began.
Second, the development prospects of switching power supply in the 21st century
Energy plays a key role in social modernization. Power electronics technology with its flexible power conversion method, high performance, high power density, high efficiency, will be vigorously developed in the 21st century, and switching power supply is an important aspect of power electronics technology.
Focus on lighting lighting companies are keen on self-built talent pool Huadong lighting market to discuss the big market to meet the challenges (Figure) East China lighting market research to build a leading enterprise (Figure) East China lighting market research and discover the new market space (Figure) East China lighting market research to engage in large market to see the supporting (Figure) East China lighting market research and invigorating the market to see the government (Figure)
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