Volume 23 (2015) Issue 4 Pages 692-697
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.