Journal of the Japan Society of Applied Electromagnetics and Mechanics
Online ISSN : 2187-9257
Print ISSN : 0919-4452
Special Issue on The 23rd MAGDA Conference in Takamatsu (MAGDA2014)
Concideration of impedance matching on power conversion circuit for magnetic energy harvesting
With Cockcroft-Walton circuit
Kunihisa TASHIROHiroyuki WAKIWAKAAzusa IKEGAMI
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Volume 23 (2015) Issue 4 Pages 692-697

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Abstract

 In recent years, energy harvesting is an attractive research for worldwide engineers. An environmental magnetic field around power lines and electric appliances could be regarded as a reusable energy source. This paper considers the impedance matching on power conversion circuit for magnetic energy circuit. The Cockcroft-Walton circuit consisting of ideal diodes are used for this considerations. Based on the maximum power transfer theorem, the optimum load is expressed by the two parameters: input resistance and number of steps in the Cockcroft-Walton circuit. From both the analysis and experimental results, the estimated output voltage and power are confirmed.

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© 2015 The Japan Society of Applied Electromagnetics and Mechanics
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