A magnetic energy harvesting device using current transformer
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초록
Magnetic energy harvesting technology for non-contact self-generative IoT sensors using power line networks have been actively studied. However, the proposed methods are designed to operate at a large current for high-voltage transmission line applica-tions. Therefore, in this study, a device was developed to harvest magnetic energy at a low current. The basic characteristics of energy harvesting of commercial current transformers (CTs) were reviewed, and a method was proposed to enhance the harvested AC power. A peak AC power of 2.7 W was harvested from a copper wire carrying a current of 7 Arms using five CTs in series connection. The practicality of the proposed device was demonstrated by operating a high-brightness LED with the DC power converted in the rectifier circuit.
Abstract
Magnetic energy harvesting technology for non-contact self-generative IoT sensors using power line networks have been actively studied. However, the proposed methods are designed to operate at a large current for high-voltage transmission line applica-tions. Therefore, in this study, a device was developed to harvest magnetic energy at a low current. The basic characteristics of energy harvesting of commercial current transformers (CTs) were reviewed, and a method was proposed to enhance the harvested AC power. A peak AC power of 2.7 W was harvested from a copper wire carrying a current of 7 Arms using five CTs in series connection. The practicality of the proposed device was demonstrated by operating a high-brightness LED with the DC power converted in the rectifier circuit.
참고문헌 (7)
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