A novel energy harvester in a backpack via precision sensing of back electromotive force

W. W. Yen, Paul C.-P. Chao

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

Abstract

In this paper, swop fly-back converter, a new type of fly-back converter, was proposed. It is controlled by constant-on time, a strategy of pulse frequency modulation with boundary conduction mode. Due to the structure of swop fly-back converter and the boundary conduction mode control strategy, the energy delivery to battery is proportional to the voltage of coupled capacitor of swop fly-back converter which changed the position of the metal-oxide-semiconductor field-effect transistor and the capacitor instead of measuring input voltage and input current. Thus, the energy was estimated by measuring the voltage of coupled capacitor. The previous test shows that the voltage of coupled capacitor sensing which is measured by 10-bit ADC is good. The peak voltage is 4.036 V, the ADC value is 1009 digi, and it induced average power 1.25W for striding and 2W for jogging.

Original languageEnglish
Title of host publicationASME 2020 29th Conference on Information Storage and Processing Systems, ISPS 2020
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791883600
DOIs
StatePublished - Jun 2020
EventASME 2020 29th Conference on Information Storage and Processing Systems, ISPS 2020 - Virtual, Online
Duration: 24 Jun 202025 Jun 2020

Publication series

NameASME 2020 29th Conference on Information Storage and Processing Systems, ISPS 2020

Conference

ConferenceASME 2020 29th Conference on Information Storage and Processing Systems, ISPS 2020
CityVirtual, Online
Period24/06/2025/06/20

Keywords

  • Backpack
  • Constant on time
  • Energy harvester
  • Swop fly-back converter
  • Vibration energy

Fingerprint Dive into the research topics of 'A novel energy harvester in a backpack via precision sensing of back electromotive force'. Together they form a unique fingerprint.

Cite this