All-digital current-sensorless multi-mode DC-DC converter for battery powered applications

Guan Shen Yao, Yi Yang Tsai, Kai Yu Hu, Chun Yu Chen, Kuan Hua Lai, Chien Hung Tsai

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

Abstract

This paper presents an all-digital current-sensorless multi-mode DC-DC converter for portable applications. All-digital load current detector, operation mode detector and multi-mode controller are implemented. The multi-mode controller can seamlessly change modes between pulse frequency modulation (PFM) and pulse width modulation (PWM) with the aid of load current detector and operation mode detector. The cooperation of PWM and PFM can maintain good output voltage regulation and light-load efficiency over wide load range. The digital controller, power MOSFET and driver are fabricated in TSMC 90-nm standard CMOS process. The experimental results show that the proposed architecture can achieve high efficiency over a wide load range.

Original languageEnglish
Title of host publication2019 IEEE 8th Global Conference on Consumer Electronics, GCCE 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1144-1145
Number of pages2
ISBN (Electronic)9781728135755
DOIs
Publication statusPublished - 2019 Oct
Event8th IEEE Global Conference on Consumer Electronics, GCCE 2019 - Osaka, Japan
Duration: 2019 Oct 152019 Oct 18

Publication series

Name2019 IEEE 8th Global Conference on Consumer Electronics, GCCE 2019

Conference

Conference8th IEEE Global Conference on Consumer Electronics, GCCE 2019
CountryJapan
CityOsaka
Period19-10-1519-10-18

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Artificial Intelligence
  • Computer Networks and Communications
  • Computer Science Applications
  • Electrical and Electronic Engineering

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  • Cite this

    Yao, G. S., Tsai, Y. Y., Hu, K. Y., Chen, C. Y., Lai, K. H., & Tsai, C. H. (2019). All-digital current-sensorless multi-mode DC-DC converter for battery powered applications. In 2019 IEEE 8th Global Conference on Consumer Electronics, GCCE 2019 (pp. 1144-1145). [9014640] (2019 IEEE 8th Global Conference on Consumer Electronics, GCCE 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/GCCE46687.2019.9014640