@inproceedings{1302a5d4a8964ad2a8d3155cde634d28,
title = "An Enhanced Multi-frequency Small-Signal Model for a High-Bandwidth PCM Buck Converter",
abstract = "An enhanced multi-frequency small-signal model (E-MFSSM) is proposed to analyze the frequency domain characteristics of high-bandwidth peak current mode (PCM) buck converters. For such systems, the small-signal averaged model (SSAM) fails due to three major factors (i) the sampling-hold effect produced by the PCM control (ii) the considerable sideband components that exist in the pulse width modulation (PWM), and (iii) the large modulation waveform ripple due to the high bandwidth. Several modified small-signal models have been proposed by considering factor (i) or (ii). Compared with these models, our E-MFSSM incorporates all three factors to make further improvement in accuracy. In this study, factors (i) and (iii) are modeled by describing function. By considering the dominant sideband component, factor (ii) is added to obtain this extremely accurate model. Simulations and experiments are presented as verifications.",
keywords = "Buck converter, High-bandwidth, Modulation waveform ripple, Peak current mode, Small-signal",
author = "Xiangpeng Cheng and Jinjun Liu and Zeng Liu and Li Cheng and Yiming Tu",
note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019 ; Conference date: 29-09-2019 Through 03-10-2019",
year = "2019",
month = sep,
doi = "10.1109/ECCE.2019.8912537",
language = "英语",
series = "2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "654--659",
booktitle = "2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019",
}