Loop Model and Quasi Limit Cycle for Digitally Controlled Switching DC-DC Converters

摘要：

Loop model and controlled object model for digitally controlled switching dc-dc converters are set up in this paper, and buck converters stability for both digital control and analog control are comparatively analyzed based on the proposed models. This paper also discusses the presence of one oscillation, called as quasi limit cycle, caused by one additional switching cycle delay in the digital feedback loop, and three methods to remove it are introduced and studied. Simulation results are provided to verify the correctness of proposed models and the validity of removal methods.

关键词： switching dc-dc converter limit cycle pulse-width modulation

作者: Feng Li Tingcun Wei Han Yan Ran Zheng

作者单位: School of Computer Science and Technology, Northwestern Polytechnical University Xian China

会议类型: 国际会议

会议名称: The 2010 International Conference on Computer Application and System Modeling(2010计算机应用与系统建模国际会议 ICCASM 2010)

会议地点: 太原

会议语种:英文

页码: 358-362

在线出版日期: 2010-10-22（万方平台首次上网日期，不代表论文的发表时间）