The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Nous proposons une méthode pour dériver le gain de boucle des impédances de sortie en boucle ouverte et en boucle fermée dans un convertisseur abaisseur CC-CC avec commandes de mode tension et de mode courant. Ceci permet de mesurer le gain de boucle sans injecter de signal dans la boucle de rétroaction, c'est à dire sans rompre la boucle de rétroaction ; la méthode proposée peut donc être appliquée aux circuits de contrôle implémentés sur un CI. Notre simulation et notre expérience montrent que le gain de boucle déterminé par la méthode proposée correspond étroitement à celui obtenu par la méthode conventionnelle, qui doit rompre la boucle de rétroaction. Ces résultats confirment que la méthode proposée peut estimer avec précision la marge de phase.
Nobukazu TSUKIJI
Gunma University
Yasunori KOBORI
Gunma University
Haruo KOBAYASHI
Gunma University
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Nobukazu TSUKIJI, Yasunori KOBORI, Haruo KOBAYASHI, "A Study on Loop Gain Measurement Method Using Output Impedance in DC-DC Buck Converter" in IEICE TRANSACTIONS on Communications,
vol. E101-B, no. 9, pp. 1940-1948, September 2018, doi: 10.1587/transcom.2017EBP3358.
Abstract: We propose a method to derive the loop gain from the open-loop and closed-loop output impedances in a dc-dc buck converter with voltage mode and current mode controls. This enables the loop gain to be measured without injecting a signal into the feedback loop, i.e. without breaking the feedback loop; hence the proposed method can be applied to the control circuits implemented on an IC. Our simulation and experiment show that the loop gain determined by the proposed method closely matches that yielded by the conventional method, which has to break the feedback loop. These results confirm that the proposed method can accurately estimate the phase margin.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2017EBP3358/_p
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@ARTICLE{e101-b_9_1940,
author={Nobukazu TSUKIJI, Yasunori KOBORI, Haruo KOBAYASHI, },
journal={IEICE TRANSACTIONS on Communications},
title={A Study on Loop Gain Measurement Method Using Output Impedance in DC-DC Buck Converter},
year={2018},
volume={E101-B},
number={9},
pages={1940-1948},
abstract={We propose a method to derive the loop gain from the open-loop and closed-loop output impedances in a dc-dc buck converter with voltage mode and current mode controls. This enables the loop gain to be measured without injecting a signal into the feedback loop, i.e. without breaking the feedback loop; hence the proposed method can be applied to the control circuits implemented on an IC. Our simulation and experiment show that the loop gain determined by the proposed method closely matches that yielded by the conventional method, which has to break the feedback loop. These results confirm that the proposed method can accurately estimate the phase margin.},
keywords={},
doi={10.1587/transcom.2017EBP3358},
ISSN={1745-1345},
month={September},}
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TY - JOUR
TI - A Study on Loop Gain Measurement Method Using Output Impedance in DC-DC Buck Converter
T2 - IEICE TRANSACTIONS on Communications
SP - 1940
EP - 1948
AU - Nobukazu TSUKIJI
AU - Yasunori KOBORI
AU - Haruo KOBAYASHI
PY - 2018
DO - 10.1587/transcom.2017EBP3358
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E101-B
IS - 9
JA - IEICE TRANSACTIONS on Communications
Y1 - September 2018
AB - We propose a method to derive the loop gain from the open-loop and closed-loop output impedances in a dc-dc buck converter with voltage mode and current mode controls. This enables the loop gain to be measured without injecting a signal into the feedback loop, i.e. without breaking the feedback loop; hence the proposed method can be applied to the control circuits implemented on an IC. Our simulation and experiment show that the loop gain determined by the proposed method closely matches that yielded by the conventional method, which has to break the feedback loop. These results confirm that the proposed method can accurately estimate the phase margin.
ER -