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Notice of retraction
Vol. 34, No. 8(3), S&M3042

Notice of retraction
Vol. 32, No. 8(2), S&M2292

Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Sensors and Materials
is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.

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Sensors and Materials, Volume 34, Number 10(1) (2022)
Copyright(C) MYU K.K.
pp. 3693-3706
S&M3070 Technical Paper
https://doi.org/10.18494/SAM3980
Published: October 5, 2022

Frequency Compensation with Capacitor Multiplier in DC–DC Converter [PDF]

Lei Tian, Zhong Chen, Qinqin Li, and Weiheng Wang

(Received June 20, 2022; Accepted August 22, 2022 )

Keywords: frequency compensation, capacitor multiplier, current-mode, DC–DC converter

In this paper, we present on-chip frequency compensation with a capacitor multiplier for a current-mode control DC–DC converter. The capacitor multiplier technique can effectively remove the crossover frequency from the origin. An equivalent capacitance is obtained by amplifying the small current in the capacitor. The value of the equivalent capacitor can be adjusted. The functional block diagram and small-signal transfer function of a buck DC–DC converter are derived for a simplified system loop for on-chip frequency compensation with a capacitor multiplier. In this paper, the derived system transfer function for frequency compensation is verified by simulation and from test results. The proposed circuit is suitable for low-cost and small-size applications. Simulation results and experimental results are presented to demonstrate the theoretical analysis.

Corresponding author: Lei Tian


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This work is licensed under a Creative Commons Attribution 4.0 International License.

Cite this article
Lei Tian, Zhong Chen, Qinqin Li, and Weiheng Wang, Frequency Compensation with Capacitor Multiplier in DC–DC Converter, Sens. Mater., Vol. 34, No. 10, 2022, p. 3693-3706.



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