Semi-Digital Interleaved PFC Control with Optimized Light Load Efficiency

被引：0
|
作者：
Grote, T. [1 ]
Figge, H. [1 ]
Froehleke, N. [1 ]
Beulen, W. [2 ]
Schafmeister, F. [2 ]
Ide, P. [2 ]
Boecker, J. [1 ]
机构：
[1] Univ Gesamthsch Paderborn, Inst Power Elect & Elect Drives, D-4790 Paderborn, Germany
[2] DELTA Energy Syst GmbH, Soest, Germany
来源：
APEC: 2009 IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, VOLS 1- 4 | 2009年
关键词：
power factor correction rectifier; digital control; semi-digital control; interleaving; power management;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A control structure for an interleaved power factor correction (PFC) rectifier with smart combination of analog and digital control parts is presented in this paper. Analog technique is employed to accomplish high control bandwidth while digital control is used for parts of lower dynamic demands. This results in low microcontroller costs though the system is kept flexible. Particularly, the control strategy can be adapted depending on the operation point. Since the light load performance is in recent focus of interest, appropriate algorithms to improve light load efficiency were implemented on a prototype system and are briefly described in this paper. The effectiveness of the proposed semi-digital control approach is verified by experimental results.
引用
收藏
页码：1722 / +
页数：2
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