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The power adapter is power supply equipment transform small portable electronic equipment and electronic appliances, generally consists of a shell, a power transformer and rectifier circuit, according to the type of output can be divided into AC output type and DC output type; according to connection can be divided into the plug wall and desktop.

Application of power adapter

Power adapter is widely used in consumer electronic products, most of the output power is within 100 watts, and the market demand is growing rapidly. Such as electric bicycle battery charger, small size LCD TV, laptop, printer, DVD player and set-top box and so on. Most of the early power adapter with linear transformer, with consumer electronic products with high efficiency, the power adapter with wide input voltage range, and the increase of copper, iron and manpower cost, this kind of power adapter inside the original linear transformer was gradually replaced most of the switching power supply.

Development trend of power adapter

The power adapter appears most early in the last century, the mid 80s, Toshiba pioneered the technology of switching power supply for external power supply of the notebook, it first created a power adapter in the history of the development of a new page, which became the world's first independent notebook adapter, because the external power supply using the technology of switching power supply so the notebook does not need to considering the power conversion and the heat generated is gathered in the laptop itself, and portable power adapter, and it can effectively improve the notebook computer commercialization and popularization.

At present, the high frequency power adapter has become the direction of its development, so that high-frequency switching power supply miniaturization, and the power adapter in a more wide range of applications, especially in the high-tech fields, and promote the miniaturization and portability of the high technology products. In addition, the development and application of power adapter is of great significance in saving energy, saving resources and protecting the environment.

Power adapter Market Prospects

At present, with the continuous progress of science and technology, all kinds of electronic products and technology has matured, the mobile terminal equipment of all kinds grew in popularity, and in 2014, the tablet computer, smart TV began to replace the traditional terminal equipment, has been received, sales growth is the inevitable result.

The report shows that, driven by the strong demand of popular electronic products, the global market of external power adapter and charger will increase by 19% in the past 2012-2014 years, reaching 1 billion US dollars.

Next, the computer market will be gradually eroded by the tablet computer, since the beginning of 2014, smart TV, smart appliances began to enter the public view, wearable devices, portable medical testing equipment has entered the stage of rapid development, and any one of the above fields cannot do without the power supply, power adapter is expected to usher in development the golden period.