A voltage-mode DC-DC converter with enhanced transient responses

Kichang Jang; Jungsoo Choi; Chulkyu Park; Joongho Choi

doi:10.1109/ISCAS.2012.6272209

A voltage-mode DC-DC converter with enhanced transient responses

Kichang Jang, Jungsoo Choi, Chulkyu Park, Joongho Choi

School of Electrical and Computer Engineering

University of Seoul

Research output: Contribution to conference › Paper › peer-review

1 Scopus citations

Abstract

This paper presents the design technique using a charge-pump circuit for enhancing the transient responses of a voltage-mode DC-DC converter. Although there is no need for additional sensing circuitry for a voltage-mode DC-DC converter, extensive frequency compensation scheme should be critical for stable operations. This converter shows slow transient responses with respect to variations of input voltage and load current. In this paper, a charge-pump circuit is added to the compensating circuit for faster responses. The proposed method is verified in hardware implementation where the voltage-mode DC-DC buck converter is fabricated in a 0.35-um CMOS technology.

Original language	English
Pages	974-977
Number of pages	4
DOIs	https://doi.org/10.1109/ISCAS.2012.6272209
State	Published - 2012
Event	2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012 - Seoul, Korea, Republic of Duration: 20 May 2012 → 23 May 2012

Conference

Conference	2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012
Country/Territory	Korea, Republic of
City	Seoul
Period	20/05/12 → 23/05/12

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10.1109/ISCAS.2012.6272209

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abstract = "This paper presents the design technique using a charge-pump circuit for enhancing the transient responses of a voltage-mode DC-DC converter. Although there is no need for additional sensing circuitry for a voltage-mode DC-DC converter, extensive frequency compensation scheme should be critical for stable operations. This converter shows slow transient responses with respect to variations of input voltage and load current. In this paper, a charge-pump circuit is added to the compensating circuit for faster responses. The proposed method is verified in hardware implementation where the voltage-mode DC-DC buck converter is fabricated in a 0.35-um CMOS technology.",

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AU - Park, Chulkyu

AU - Choi, Joongho

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AB - This paper presents the design technique using a charge-pump circuit for enhancing the transient responses of a voltage-mode DC-DC converter. Although there is no need for additional sensing circuitry for a voltage-mode DC-DC converter, extensive frequency compensation scheme should be critical for stable operations. This converter shows slow transient responses with respect to variations of input voltage and load current. In this paper, a charge-pump circuit is added to the compensating circuit for faster responses. The proposed method is verified in hardware implementation where the voltage-mode DC-DC buck converter is fabricated in a 0.35-um CMOS technology.

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T2 - 2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012

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ER -

A voltage-mode DC-DC converter with enhanced transient responses

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