Whether there is imagined life left the phone, the computer will be how? Now, no matter where you go, do what will be used in mobile phones, and even take the bus, subway, etc., eat leisure time we will use electronic products to pass the time. A variety of electronic devices have been fully integrated into our lives, they are a very important part of our lives, but it is because of this, the power adapter, charger and other equipment is also growing. China's consumption of IT industry in 2017 rapid development, the next five years CAGR (average annual compound growth rate) was 20.9%. MP3, digital cameras, digital cameras, personal media players (PMP), handheld game consoles and other markets to further prosperity and challenge as the main IT industry, the main driving force of the PC industry's dominant position. CCID market analysis report predicts that China's digital product market growth rate of 82.4%.
     The development trend of mobile digital products First, the appearance of the pursuit of miniaturization, the second is the pursuit of diversification. The use of color LCD display, it will speed up the battery energy consumption, significantly reduce the working hours of mobile devices in the future for a long time, to be able to reduce the battery size (capacity); functional diversification, especially the use of color LCD display, Substantial increase in battery capacity is almost impossible. Statistics show that the battery capacity increased by 20% every 10 years. Therefore, how to anytime, anywhere for mobile digital products charge, power supply, extend the use of mobile digital products, is the current and future mobile digital products users face the biggest problem.


Currently on the market using the basic charger there are two: high-frequency switching power supply charger and power frequency transformer charger. Switching power supply charger commonly known as smart charger, compared with the power frequency charger, generally have the following advantages:
The same time as
1, power frequency charger weight is heavy, bulky, no side to carry.


2, power frequency charger with a transformer, the cost of a little higher price is also more expensive.


3, charging performance, high-frequency charger internal IC and other device control, for different batteries, the corresponding charging method, generally 3-5-stage charging, power frequency charger is difficult to achieve.


4, high-frequency charger high efficiency, less power consumption.


Because high-frequency charger has these characteristics, has been widely recognized by the market, has also become a charger industry trends.