Current-sensing technique for current-mode DC-DC buck converter with offset-voltage compensation

Jungeui Park; Jungsoo Choi; Wooju Jeong; Sanduk Yu; Kichang Jang; Youngchan Choi; Joongho Choi

doi:10.1109/APCCAS.2008.4746367

Current-sensing technique for current-mode DC-DC buck converter with offset-voltage compensation

Jungeui Park, Jungsoo Choi, Wooju Jeong, Sanduk Yu, Kichang Jang, Youngchan Choi, Joongho Choi

School of Electrical and Computer Engineering

University of Seoul

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

6 Scopus citations

Abstract

As the technology of SoC (System-on-Chip) implementation has been improved, power management IC such as DC-DC converters should be also integrated into a single chip.The current-mode control DC-DC converter is preferred to the voltage-mode one because of simpler frequency compensation scheme, which makes it possible to utilize the chip with less off-chip components. In order to achieve an efficient current-mode control, an elaborate current sensing technique should beincorporated to maintain conversion efficiency. In this paper, a new current sensing circuitry is proposed that compensates the offset voltage of the operational amplifier that is used in current-mirroring sensing scheme. The chip is implemented in a 0.35-uμm CMOS technology.

Original language	English
Title of host publication	Proceedings of APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems
Pages	1704-1707
Number of pages	4
DOIs	https://doi.org/10.1109/APCCAS.2008.4746367
State	Published - 2008
Event	APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems - Macao, China Duration: 30 Nov 2008 → 3 Dec 2008

Publication series

Name	IEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS

Conference

Conference	APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems
Country/Territory	China
City	Macao
Period	30/11/08 → 3/12/08

Access to Document

10.1109/APCCAS.2008.4746367

Cite this

Park, J., Choi, J., Jeong, W., Yu, S., Jang, K., Choi, Y., & Choi, J. (2008). Current-sensing technique for current-mode DC-DC buck converter with offset-voltage compensation. In Proceedings of APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems (pp. 1704-1707). Article 4746367 (IEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS). https://doi.org/10.1109/APCCAS.2008.4746367

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title = "Current-sensing technique for current-mode DC-DC buck converter with offset-voltage compensation",

abstract = "As the technology of SoC (System-on-Chip) implementation has been improved, power management IC such as DC-DC converters should be also integrated into a single chip.The current-mode control DC-DC converter is preferred to the voltage-mode one because of simpler frequency compensation scheme, which makes it possible to utilize the chip with less off-chip components. In order to achieve an efficient current-mode control, an elaborate current sensing technique should beincorporated to maintain conversion efficiency. In this paper, a new current sensing circuitry is proposed that compensates the offset voltage of the operational amplifier that is used in current-mirroring sensing scheme. The chip is implemented in a 0.35-uμm CMOS technology.",

author = "Jungeui Park and Jungsoo Choi and Wooju Jeong and Sanduk Yu and Kichang Jang and Youngchan Choi and Joongho Choi",

year = "2008",

doi = "10.1109/APCCAS.2008.4746367",

language = "English",

isbn = "9781424423422",

series = "IEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS",

pages = "1704--1707",

booktitle = "Proceedings of APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems",

note = "APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems ; Conference date: 30-11-2008 Through 03-12-2008",

}

Park, J, Choi, J, Jeong, W, Yu, S, Jang, K, Choi, Y & Choi, J 2008, Current-sensing technique for current-mode DC-DC buck converter with offset-voltage compensation. in Proceedings of APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems., 4746367, IEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS, pp. 1704-1707, APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems, Macao, China, 30/11/08. https://doi.org/10.1109/APCCAS.2008.4746367

Current-sensing technique for current-mode DC-DC buck converter with offset-voltage compensation. / Park, Jungeui; Choi, Jungsoo; Jeong, Wooju et al.
Proceedings of APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems. 2008. p. 1704-1707 4746367 (IEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS).

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

TY - GEN

T1 - Current-sensing technique for current-mode DC-DC buck converter with offset-voltage compensation

AU - Park, Jungeui

AU - Choi, Jungsoo

AU - Jeong, Wooju

AU - Yu, Sanduk

AU - Jang, Kichang

AU - Choi, Youngchan

AU - Choi, Joongho

PY - 2008

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N2 - As the technology of SoC (System-on-Chip) implementation has been improved, power management IC such as DC-DC converters should be also integrated into a single chip.The current-mode control DC-DC converter is preferred to the voltage-mode one because of simpler frequency compensation scheme, which makes it possible to utilize the chip with less off-chip components. In order to achieve an efficient current-mode control, an elaborate current sensing technique should beincorporated to maintain conversion efficiency. In this paper, a new current sensing circuitry is proposed that compensates the offset voltage of the operational amplifier that is used in current-mirroring sensing scheme. The chip is implemented in a 0.35-uμm CMOS technology.

AB - As the technology of SoC (System-on-Chip) implementation has been improved, power management IC such as DC-DC converters should be also integrated into a single chip.The current-mode control DC-DC converter is preferred to the voltage-mode one because of simpler frequency compensation scheme, which makes it possible to utilize the chip with less off-chip components. In order to achieve an efficient current-mode control, an elaborate current sensing technique should beincorporated to maintain conversion efficiency. In this paper, a new current sensing circuitry is proposed that compensates the offset voltage of the operational amplifier that is used in current-mirroring sensing scheme. The chip is implemented in a 0.35-uμm CMOS technology.

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T3 - IEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS

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BT - Proceedings of APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems

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Park J, Choi J, Jeong W, Yu S, Jang K, Choi Y et al. Current-sensing technique for current-mode DC-DC buck converter with offset-voltage compensation. In Proceedings of APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems. 2008. p. 1704-1707. 4746367. (IEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS). doi: 10.1109/APCCAS.2008.4746367

Current-sensing technique for current-mode DC-DC buck converter with offset-voltage compensation

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