A Single-Inductor Triple-Output Converter with an Automatic Detection of DC or AC Energy Harvesting Source for Supplying 93% Efficiency and 0.05mV/mA Cross Regulation to Wearable Electronics

T. Nagateja, Shao Qi Chen, Li Cheng Chu, Ke Horng Chen, Ying Hsi Lin, Shian Ru Lin, Tsung Yen Tsai

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The proposed single-inductor triple-output (SITO) converter can accept both DC battery voltage and AC energy harvesting voltage to provide a triple step up and down outputs. Storing the energy to the H-bridge capacitor first and pumping it later can ensure a continuous inductor current for reducing the output voltage ripple by 67%. Due to the H-bridge, the inductor current value is reduced to 1/5X to achieve high efficiency of 93% under the current loading of 120mA. Moreover, the proposed PWM and the adaptive on-time hybrid controller uses different modulation methods in a single controller to meet the requirements of different multiple outputs.

Original languageEnglish
Title of host publicationProceedings - 2019 IEEE Asian Solid-State Circuits Conference, A-SSCC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages49-52
Number of pages4
ISBN (Electronic)9781728151069
DOIs
StatePublished - Nov 2019
Event15th IEEE Asian Solid-State Circuits Conference, A-SSCC 2019 - Macao, China
Duration: 4 Nov 20196 Nov 2019

Publication series

NameProceedings - 2019 IEEE Asian Solid-State Circuits Conference, A-SSCC 2019

Conference

Conference15th IEEE Asian Solid-State Circuits Conference, A-SSCC 2019
CountryChina
CityMacao
Period4/11/196/11/19

Keywords

  • adaptive on-time (AOT)
  • pulse width modulation (PWM)
  • single-inductor triple-output (SITO) converter

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