A high efficiency CMOS DC-DC boost converter with current sensing feedback

Jung Kyungsoo; Lim Jinup; Park Jongmin; Yang Huikwan; Cha Sanghyun; Choi Joongho

doi:10.1109/MWSCAS.2005.1594437

A high efficiency CMOS DC-DC boost converter with current sensing feedback

Jung Kyungsoo, Lim Jinup, Park Jongmin, Yang Huikwan, Cha Sanghyun, Choi Joongho

School of Electrical and Computer Engineering

University of Seoul

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

13 Scopus citations

Abstract

This paper presents a high efficiency CMOS DC-DC boost converter with current sensing feedback. The internal 500 kHz oscillator for switching operation is used to make set control signal in pulse-width modulation topology. To sense the amount of current through the inductor, the high accuracy current copy circuit using operational amplifier is included. The load regulation is 11.5%/A with compensation scheme that increases the feedback loop gain and accuracy of the output voltage. To guarantee the stability of the converter, the artificial ramp signal is used. The measurement results show that the efficiency is up to 90.7% with 2.2V input and 220mA load current for 3.3V output. This converter is fabricated in 0.18-μm CMOS standard technology with thick gate oxide option.

Original language	English
Title of host publication	2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005
Pages	1661-1664
Number of pages	4
DOIs	https://doi.org/10.1109/MWSCAS.2005.1594437
State	Published - 2005
Event	2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005 - Cincinnati, OH, United States Duration: 7 Aug 2005 → 10 Aug 2005

Publication series

Name	Midwest Symposium on Circuits and Systems
Volume	2005
ISSN (Print)	1548-3746

Conference

Conference	2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005
Country/Territory	United States
City	Cincinnati, OH
Period	7/08/05 → 10/08/05

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10.1109/MWSCAS.2005.1594437

Cite this

Kyungsoo, J., Jinup, L., Jongmin, P., Huikwan, Y., Sanghyun, C., & Joongho, C. (2005). A high efficiency CMOS DC-DC boost converter with current sensing feedback. In 2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005 (pp. 1661-1664). Article 1594437 (Midwest Symposium on Circuits and Systems; Vol. 2005). https://doi.org/10.1109/MWSCAS.2005.1594437

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title = "A high efficiency CMOS DC-DC boost converter with current sensing feedback",

abstract = "This paper presents a high efficiency CMOS DC-DC boost converter with current sensing feedback. The internal 500 kHz oscillator for switching operation is used to make set control signal in pulse-width modulation topology. To sense the amount of current through the inductor, the high accuracy current copy circuit using operational amplifier is included. The load regulation is 11.5%/A with compensation scheme that increases the feedback loop gain and accuracy of the output voltage. To guarantee the stability of the converter, the artificial ramp signal is used. The measurement results show that the efficiency is up to 90.7% with 2.2V input and 220mA load current for 3.3V output. This converter is fabricated in 0.18-μm CMOS standard technology with thick gate oxide option.",

author = "Jung Kyungsoo and Lim Jinup and Park Jongmin and Yang Huikwan and Cha Sanghyun and Choi Joongho",

year = "2005",

doi = "10.1109/MWSCAS.2005.1594437",

language = "English",

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series = "Midwest Symposium on Circuits and Systems",

pages = "1661--1664",

booktitle = "2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005",

note = "2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005 ; Conference date: 07-08-2005 Through 10-08-2005",

}

Kyungsoo, J, Jinup, L, Jongmin, P, Huikwan, Y, Sanghyun, C & Joongho, C 2005, A high efficiency CMOS DC-DC boost converter with current sensing feedback. in 2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005., 1594437, Midwest Symposium on Circuits and Systems, vol. 2005, pp. 1661-1664, 2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005, Cincinnati, OH, United States, 7/08/05. https://doi.org/10.1109/MWSCAS.2005.1594437

A high efficiency CMOS DC-DC boost converter with current sensing feedback. / Kyungsoo, Jung; Jinup, Lim; Jongmin, Park et al.
2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005. 2005. p. 1661-1664 1594437 (Midwest Symposium on Circuits and Systems; Vol. 2005).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Joongho, Choi

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N2 - This paper presents a high efficiency CMOS DC-DC boost converter with current sensing feedback. The internal 500 kHz oscillator for switching operation is used to make set control signal in pulse-width modulation topology. To sense the amount of current through the inductor, the high accuracy current copy circuit using operational amplifier is included. The load regulation is 11.5%/A with compensation scheme that increases the feedback loop gain and accuracy of the output voltage. To guarantee the stability of the converter, the artificial ramp signal is used. The measurement results show that the efficiency is up to 90.7% with 2.2V input and 220mA load current for 3.3V output. This converter is fabricated in 0.18-μm CMOS standard technology with thick gate oxide option.

AB - This paper presents a high efficiency CMOS DC-DC boost converter with current sensing feedback. The internal 500 kHz oscillator for switching operation is used to make set control signal in pulse-width modulation topology. To sense the amount of current through the inductor, the high accuracy current copy circuit using operational amplifier is included. The load regulation is 11.5%/A with compensation scheme that increases the feedback loop gain and accuracy of the output voltage. To guarantee the stability of the converter, the artificial ramp signal is used. The measurement results show that the efficiency is up to 90.7% with 2.2V input and 220mA load current for 3.3V output. This converter is fabricated in 0.18-μm CMOS standard technology with thick gate oxide option.

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A high efficiency CMOS DC-DC boost converter with current sensing feedback

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