Aiming at this problem , this paper discusses a systematic method for deriving basic configurations that achieve pfc and voltage regulation 本文针对这个问题，提出了一个系统的分析方法来构建pfc的拓扑结构。
Results from our laboratory suggests that the pfc provides an infrastructure for the rapid synthesis of the diverse information 从我们的实验结果推测，额前皮质能在多样化的讯息下，提供一个迅速整合的基本结构。
The double closed - loops framework is applied in the pfc control circuit and the pi algorithm is adopted as system " s control algorithm Pfc系统的控制电路采用电流环与电压环双闭环控制结构，控制算法采用传统的pi算法。
The experimental result shows the control scheme of the paralleling of pfc module work reliable with good performance and is easy to realize in practice 样机实验结果表明，并联控制方案工作可靠、性能优良，工程上易于实现。
The paper analyzes the contradiction between static and dynamic performances in pfc , then introduces several strategies for resolving these problems 分析了pfc中存在的稳态性能与动态性能的矛盾，介绍了解决此矛盾的若干方法。
In the thesis the hot problems and development of pfc technology are analyzed farther . it establishes good foundations for future research 本文还分析了功率因数校正技术的热点问题和发展方向，为今后的研究打下良好的基础。
In the thesis the hot problems and development of pfc technology are analyzed farther . it establishes good foundation for future research 本文还分析了功率因数校正技术的热点问题和发展方向,为今后的研究打下了良好的基础。
For increasing the switching frequency and reducing switching losses and emi noise of the pfc circuits , soft - switching technologies are adopted 在功率因数校正变换器中采用软开关变换技术可以使开关频率提高、降低开关损耗、并有效抑制emi 。
In order to solve this problem , the power factor correction ( pfc ) pre - regulators are applied to limit the input current harmonics of the switching power supplies 为了限制谐波污染,用电设备需加入功率因数校正( powerfactorcorrection , pfc )装置。
