国研网21世纪国内外开关电源发展展望（Development prospect of switching power supply at home and abroad in twenty-first Century）.docVIP

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国研网21世纪国内外开关电源发展展望（Development prospect of switching power supply at home and abroad in twenty-first Century）.doc

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国研网21世纪国内外开关电源发展展望（Development prospect of switching power supply at home and abroad in twenty-first Century）

国研网21世纪国内外开关电源发展展望（Development prospect of switching power supply at home and abroad in twenty-first Century） National Research Network: development prospects of switching power supply at home and abroad in twenty-first Century Your current position: Home Page macro class twenty-first Century outlook industry economy outlook light industry textile [collection] [comment] [Print] [off] Development prospect of switching power supply at home and abroad in twenty-first Century 2001-1-12 Abstract: switching power supply technology belongs to power electronic technology, it uses power converter for power conversion, through the transformation of electrical energy, can meet all kinds of power requirements. Because of its high efficiency and energy saving, it can bring huge economic benefits, so it has been paid attention to by all aspects of society and has been popularized rapidly. . First, a strong market demand is always an important driving force for the development of switching power supply With the AC DC transform as an example, the phase controlled power supply with traditional frequency conversion technology compared to high frequency rectifier with high power switch tube, is a leap in technology, it can not only conveniently obtain different voltage levels, it is more important to get rid of the large heavy industrial frequency transformer and filter inductance capacitance. Due to the use of high frequency power conversion, the power supply device significantly reduces the volume and weight, and may be coordinated with the volume of the host of the device, and further improves the electrical performance. Because of this, in 1994, Chinas Ministry of Posts and Telecommunications made a major decision, requiring the field of communications to promote the use of switching power supply to replace the phase control power supply. The practice of the past few years has proved that this decision is absolutely correct. The use of switching power supply saves a lot of cop