基于TOPSwitch-GX器件的新型有源功率因数校正技术

The New APFC Technology Based on TOPSwitch-GX IC

本文分析了功率因数校正的原理,阐述了最新的TOPSwitch-GX器件在APFC中的应用。给出了计算方法、原理图和一个算例。指出基于TOPSwitch-GX器件Boost拓扑结构的APFC技术是提高中小功率电器功率因数的较好解决方案之一。

In this paper the principle of power factor correction is analyzed and the application of the newest TOPSwitch-GX IC to APFC is elucidated. Moreover, the author provides a calculation method, a principle chart and a calculation example. It is pointed out that the APFC technology based on TOPSwitch-GX IC Boost topological structure is a better solution to improving the power factor of small-power electrical equipment.