System-Order Reduction for Stability Improvement in a Two-Stage DC-DC Converter with Low-Voltage/High-Current Output

Seiya ABE; Tamotsu NINOMIYA; Junichi YAMAMOTO; Takeshi UEMATSU

System-Order Reduction for Stability Improvement in a Two-Stage DC-DC Converter with Low-Voltage/High-Current Output

Seiya ABE, Tamotsu NINOMIYA, Junichi YAMAMOTO, Takeshi UEMATSU

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This paper presents the improvement of the transient response and stability for a two-stage DC-DC converter by removing the output inductor. The conventional two-stage converter consists of a buck converter used as the first stage and a half-bridge converter used as the second stage. The proposed circuit topology removing the output inductor and the conventional topology are compared. Removing the output inductor results in the system-order reduction of the transfer function. As a result, the stability is improved, and the crossover frequency of the open-loop transfer function becomes higher. The effectiveness of the proposed circuit topology was experimentally confirmed.

Publication: IEICE TRANSACTIONS on Electronics Vol.E87-C No.6 pp.985-989

Publication Date: 2004/06/01

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Type of Manuscript: Special Section PAPER (Special Section on Analog Circuit and Device Technologies)

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Seiya ABE, Tamotsu NINOMIYA, Junichi YAMAMOTO, Takeshi UEMATSU, "System-Order Reduction for Stability Improvement in a Two-Stage DC-DC Converter with Low-Voltage/High-Current Output" in IEICE TRANSACTIONS on Electronics, vol. E87-C, no. 6, pp. 985-989, June 2004, doi: .
Abstract: This paper presents the improvement of the transient response and stability for a two-stage DC-DC converter by removing the output inductor. The conventional two-stage converter consists of a buck converter used as the first stage and a half-bridge converter used as the second stage. The proposed circuit topology removing the output inductor and the conventional topology are compared. Removing the output inductor results in the system-order reduction of the transfer function. As a result, the stability is improved, and the crossover frequency of the open-loop transfer function becomes higher. The effectiveness of the proposed circuit topology was experimentally confirmed.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e87-c_6_985/_p

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@ARTICLE{e87-c_6_985,
author={Seiya ABE, Tamotsu NINOMIYA, Junichi YAMAMOTO, Takeshi UEMATSU, },
journal={IEICE TRANSACTIONS on Electronics},
title={System-Order Reduction for Stability Improvement in a Two-Stage DC-DC Converter with Low-Voltage/High-Current Output},
year={2004},
volume={E87-C},
number={6},
pages={985-989},
abstract={This paper presents the improvement of the transient response and stability for a two-stage DC-DC converter by removing the output inductor. The conventional two-stage converter consists of a buck converter used as the first stage and a half-bridge converter used as the second stage. The proposed circuit topology removing the output inductor and the conventional topology are compared. Removing the output inductor results in the system-order reduction of the transfer function. As a result, the stability is improved, and the crossover frequency of the open-loop transfer function becomes higher. The effectiveness of the proposed circuit topology was experimentally confirmed.},
keywords={},
doi={},
ISSN={},
month={June},}

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TY - JOUR
TI - System-Order Reduction for Stability Improvement in a Two-Stage DC-DC Converter with Low-Voltage/High-Current Output
T2 - IEICE TRANSACTIONS on Electronics
SP - 985
EP - 989
AU - Seiya ABE
AU - Tamotsu NINOMIYA
AU - Junichi YAMAMOTO
AU - Takeshi UEMATSU
PY - 2004
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E87-C
IS - 6
JA - IEICE TRANSACTIONS on Electronics
Y1 - June 2004
AB - This paper presents the improvement of the transient response and stability for a two-stage DC-DC converter by removing the output inductor. The conventional two-stage converter consists of a buck converter used as the first stage and a half-bridge converter used as the second stage. The proposed circuit topology removing the output inductor and the conventional topology are compared. Removing the output inductor results in the system-order reduction of the transfer function. As a result, the stability is improved, and the crossover frequency of the open-loop transfer function becomes higher. The effectiveness of the proposed circuit topology was experimentally confirmed.
ER -