Nonlinear modelling of switching DC-DC converters operating in discontinuous conduction mode

被引：1
|
作者：
Chau, KT
机构：
[1] Department of Electrical and Electronic Engineering, University of Hong Kong, Pokfulam
来源：
INTERNATIONAL JOURNAL OF ELECTRONICS | 1997年 / 83卷 / 02期
关键词：
D O I：
10.1080/002072197135571
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：
Analytical large-signal frequency-domain modelling of switching DC-DC converters, operating in the discontinuous conduction mode, is presented. The modelling approach is to derive analytical expressions of the converter output response using the extended Volterra functional series. Nonlinear frequency responses, including additional DC offset as well as significant subharmonic and higher harmonic components, due to large-signal perturbations of both the duty ratio and source voltage, are investigated. Their vulnerability to switching frequencies are also described. This modelling approach has been applied to various PWM DC-DC converters, including boost, buck and buck-boost types, operating in the discontinuous conduction mode, and the results are verified. Since the approach is so general, it can readily be extended to other switching power converters.
引用
收藏
页码：271 / 286
页数：16
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