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Auxiliary current control for improving unloading transient recovery of buck converter

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Authors

Kim, Dongwook; Shin, Jong-Won

Issue Date
2022-03
Publisher
SPRINGER HEIDELBERG
Citation
JOURNAL OF POWER ELECTRONICS, Vol.22 No.3, pp.385-394
Abstract
An auxiliary current control technique is presented to improve the unloading transient response of the buck converter in this paper. The proposed control minimizes the output voltage deviation with minimal efficiency degradation of the auxiliary buck/boost converter. The parasitic components of the output capacitor and load are analyzed to estimate their effect on the load transient response. An implementation of the proposed control circuit was realized by discrete analog integrated circuits, such as operational amplifiers, comparators, logic gates, and their peripheral passive components. The performance and feasibility were experimentally verified by a 15-3.3 V and 400-kHz prototype buck converter applying the proposed control circuit.
ISSN
1598-2092
URI
https://hdl.handle.net/10371/201441
DOI
https://doi.org/10.1007/s43236-021-00370-1
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  • College of Engineering
  • Department of Electrical and Computer Engineering
Research Area DC-DC and AC-DC power conversion, DC-DC 및 AC-DC 전력변환, converter modeling, high-density, high-frequency power conversion, 고밀도 고주파 전력 변환, 컨버터 모델링

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