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Power adapter, the development history of switching power supply

Power adapter, the development history of switching power supply

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  • Time of issue:2018-10-10
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(Summary description)The scale of China's switching power supply and power adapter industry can be divided into three stages of development. According to the statistics and data of the former Ministry of Electronics Industry, a rough outline of development can be drawn.

Power adapter, the development history of switching power supply

(Summary description)The scale of China's switching power supply and power adapter industry can be divided into three stages of development. According to the statistics and data of the former Ministry of Electronics Industry, a rough outline of development can be drawn.

  • Categories:Events
  • Author:
  • Origin:
  • Time of issue:2018-10-10
  • Views:0
Information

  The scale of China's switching power supply and power adapter industry can be divided into three stages of development. According to the statistics and data of the former Ministry of Electronics Industry, a rough outline of development can be drawn.

  The first stage was before 1976, which was the initial stage of the development of China's switching power supply and power adapter industry.

  Before the liberation, my country's switching power supply and power adapter industries were basically blank, and there were only small enterprises with storage batteries and dry batteries. With the establishment of a large number of state-owned enterprises in the 1950s, and the development of the electronics industry's raw materials, original components and complete machine industries, power products also grew out of nothing. In 1959, the second factory and the first school produced more than 1,600 power supplies in five specifications. By 1976, after 17 years of development, it had grown to 26 factories, 34 varieties, 52 specifications, and more than 33,000 power supplies. Production units increased by 8.7 times, varieties and specifications increased by 10.4 times, and output increased by 20.2 times. In the first stage, it started from scratch. Although the growth rate is relatively fast, the scale of the power supply industry is still small.

  The second stage is from 1977 to 1989, which is a period of initial growth of China's switching power supply and power adapter industry.

  This stage is the initial stage of my country's reform and opening up, economic construction is gradually accelerating, and the power supply industry has gradually entered a stage of rapid growth. In 1989, the number of power supply manufacturers has grown to 171, with more than 340 product specifications and an annual output of more than 540,000 power supplies. The number of production enterprises increased by 6.6 times compared with 1976, the variety increased by 10 times, and the output increased by 16.4 times.

  At this stage, with the gradual and rapid development of the power supply industry, the majority of power supply scientists urgently need to break the original closed state and understand the outside world. Since the mid-1970s, power supply technicians have spontaneously organized technical exchanges. The first national power supply technology exchange meeting was held in 1978. The Chinese Power Supply Society was established in 1983 and was approved by the National Science and Technology Commission in 1986.

  The third stage is from 1990 to present, which is a period of great development of China's switching power supply and power adapter industry.

  At this stage, in addition to the original Ministry of Electronics Industry system, other industries and systems, such as machinery, post and telecommunications, railways, electric power, military systems, etc., have power development and production. Especially township and private enterprises have emerged in large numbers, with thousands of companies across the country. , Almost all over the country, there have been a number of power supply companies exceeding 100 million yuan or even more than 1 billion yuan. In these 10 years, a large number of foreign products and companies have entered the country and occupied a considerable share, which has intensified market competition.

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