The Prevalence Of Digital Power

Published:2010/9/5 19:24:00 Author:Michelle From:SeekIC

Technology of digital software has become pervading in area of switch power which was dominated by analog technology. In addition, digital-controlled power supply is introduced into areas like LED lighting, power in cars and industrial devices. Effects are embodied with respect to aspects of power efficiency rise, products size decrease and development time reduction by adding communication functions and changing control mode.

Digital power will help to realize the miniaturization and high efficiency for AC-DC power supply and DC-DC converters. It has been drawn attention sine five years ago and now it is enlarging with an quiet speed. Previously, it was only applied in uninterruptible supply, communication products, servers and solar power supplies. In recent years, digital power supply is applied in LED lighting devices, autos and even part of consuming products.

The main reason why digital power supply is used widely is that power-controlled IC products that use digital power supply are very cheap with price about 100 yen. As a result, companies are striving to develop this kind. Furthermore, digital power with DSP micro-controller is prevalent in areas with output power of more than 100W and switching frequency less than 1MHz.

Apart from that described above, digital power also has advantages in power property, development and application, for instance, the size of products will be decreased, numbers of components will be reduced and efficiency raised as well. However, there are some limitations together with its advantages. Not any power supplies can be applied with it and it is limited in power ability and switching frequency. Besides, cost limitation is also strict , and it will need some time for it to be entirely introduced. Related chip is:LC7980 .

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