Design and implementation of a switching DC-DC converter IC using sigma-delta modulator

Chi Yuan Huang, Yi Ting Chang, Chien-Hung Tsai

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

Abstract

This paper presents an integrated sigma-delta noise-suppression buck converter using a discrete-time second order single-bit sigma-delta modulator (DT-SDM2). The context includes the description of small signal analysis and circuit design flow. The DT-SDM2 buck converter was designed and fabricated with a standard TSMC 0.35μm 3.3V CMOS process. The operating frequency of the proposed DT-SDM2 ranges from 1 to 5MHz. Compared to traditional pulse width modulator (PWM), using DT-SDM2 to control has greater noise suppressing ability. The measurement results show that the DT-SDM2 controlled converter suppresses the switching tones by 60dB at the switching frequency of 1MHz, and suppresses the switching tones by 30dB at the switching frequency of 5MHz.

Original languageEnglish
Title of host publication2012 International Conference on Anti-Counterfeiting, Security and Identification, ASID 2012
DOIs
Publication statusPublished - 2012 Dec 11
Event2012 International Conference on Anti-Counterfeiting, Security and Identification, ASID 2012 - Taipei, Taiwan
Duration: 2012 Aug 242012 Aug 26

Publication series

NameProceedings of the International Conference on Anti-Counterfeiting, Security and Identification, ASID
ISSN (Print)2163-5048
ISSN (Electronic)2163-5056

Other

Other2012 International Conference on Anti-Counterfeiting, Security and Identification, ASID 2012
CountryTaiwan
CityTaipei
Period12-08-2412-08-26

All Science Journal Classification (ASJC) codes

  • Computer Graphics and Computer-Aided Design
  • Computer Science Applications
  • Computer Vision and Pattern Recognition
  • Software

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  • Cite this

    Huang, C. Y., Chang, Y. T., & Tsai, C-H. (2012). Design and implementation of a switching DC-DC converter IC using sigma-delta modulator. In 2012 International Conference on Anti-Counterfeiting, Security and Identification, ASID 2012 [6325301] (Proceedings of the International Conference on Anti-Counterfeiting, Security and Identification, ASID). https://doi.org/10.1109/ICASID.2012.6325301