A digitally controlled DC-DC buck converter with bang-bang control

Heejun Kim, Jungmoon Kim, Minseob Shim, Junwon Jung, Sejin Park, Chulwoo Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

This paper proposes a digitally controlled DC-DC buck converter with bang-bang control in 0.18μm BCDMOS technology. It has advantages of digital circuit and hysteresis control. The converter includes a 6-bit SAR ADC, 6-bit DPWM, analog dead-time & driver circuits, and proposed bang-bang control block. The converter occupies an area of 2.35mm2, and it operates with a fixed switching frequency of 1MHz. The input voltage ranges from 1.8V to 4V. The output voltage is 1.2V. The power efficiency of 77.4% is achieved at the output current of 199mA. The output ripple voltage is 1.6mV.

Original languageEnglish
Title of host publication13th International Conference on Electronics, Information, and Communication, ICEIC 2014 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479939428
DOIs
Publication statusPublished - 2014 Sep 30
Event13th International Conference on Electronics, Information, and Communication, ICEIC 2014 - Kota Kinabalu, Malaysia
Duration: 2014 Jan 152014 Jan 18

Publication series

Name13th International Conference on Electronics, Information, and Communication, ICEIC 2014 - Proceedings

Other

Other13th International Conference on Electronics, Information, and Communication, ICEIC 2014
CountryMalaysia
CityKota Kinabalu
Period14/1/1514/1/18

Keywords

  • Bang-bang control
  • buck converter
  • digital DC-DC converter

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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