Development trend and market prospect of power adapter

Power adapter is a small portable electronic equipment and the power supply conversion equipment of electronic appliances. It is generally composed of shell, power transformer and rectifier circuit. According to its output type, it can be divided into AC output type and DC output type; according to the connection mode, it can be divided into plug-in type and desktop type.

< strong > Application of power adapter < / strong >

Power adapter is widely used in consumer electronic products. Most of the output power provided is within 100 watts, and the market demand is growing rapidly. Such as electric bicycle battery charger, small size LCD TV, notebook computer, printer, DVD player and set-top box. Most of the early power adaptors used linear transformers. With the high efficiency and wide input voltage range of consumer electronic products, and the increase of copper, iron and labor costs, the original linear transformers in these power adaptors were gradually replaced by switching power supply.

Development trend of < strong > power adapter < / strong >

The power adapter first appeared in the mid-1980s. Toshiba, Japan, took the lead in using the switching power technology for the external power supply of notebook. Its creation created a new page in the development history of the power adapter and became the first independent notebook power adapter in the world. Because the power supply of the switching power technology is external, the notebook does not need to consider the power conversion The heat generated by the exchange is gathered in the notebook itself, and the power adapter is easy to carry, which effectively improves the commercialization and popularization of notebook computers.

At present, the high frequency of power adapter has become its development direction. The high frequency makes the switching power supply miniaturized, and makes the power adapter enter more extensive application fields, especially in the field of high and new technology, which promotes the miniaturization and portability of high-tech products. In addition, the development and application of power adapter have important significance in energy saving, resource saving and environmental protection.