Analytical modeling for switched damping electromagnetic energy harvester

Beng Lee Ooi, James M. Gilbert, A. Rashid A. Aziz, Chung Ket Thein

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

1 Citation (Scopus)


This paper presents a novel switched damping method which is able to improve the operational bandwidth of a linear electromagnetic energy harvester. In this system, different damping coefficients, in which values are computed based on the adaptive percentage-varying factor, are electronically switched at different points within the predefined oscillating quadrants. An analytical model of the switching damping device is presented, and the predictive results indicate that a reasonable large range of frequency shifts can be achieved for the proposed output resistances. The outputs for a range of values of internal coil resistance and electromotive force (emf) constant are recorded, and for the proposed system, the frequency can be shifted up to range of +19.50 to −81.46% away from the initial resonance.

Original languageEnglish
Title of host publicationTheory and Applications of Applied Electromagnetics - APPEIC 2015
EditorsMohamad Zoinol Abidin Abd. Aziz, Hamzah Asyrani Sulaiman, Mohd Azlishah Othman, Mohd Fareq Abd Malek, Ping Jack Soh
PublisherSpringer Verlag
Number of pages12
ISBN (Print)9783319301167
Publication statusPublished - 2016
Externally publishedYes
Event2nd Applied Electromagnetic International Conference, APPEIC 2015 - Krabi, Thailand
Duration: 3 Dec 20155 Dec 2015

Publication series

NameLecture Notes in Electrical Engineering
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119


Conference2nd Applied Electromagnetic International Conference, APPEIC 2015


  • Active switching device
  • Electromagnetic induction
  • Frequency tuning
  • Switching damping system
  • Vibration energy harvesting

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering


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