During the last years, three main approaches to transmit power without cable connections have been studied. The first one relies on microwave radiating systems, and its performance is mostly limited by the rectenna device, required to pick-up and DC convert the radiated power. This approach has not pervaded application fields since its hazardousness is still not well assessed. Moreover, it has still to face several technological issues and safety concerns before being eligible for application. The second one refers to optical wireless transmission at long distances, which uses laser and photovoltaic diodes for successful operation. The third approach exploits coupled circuits to transmit power upon short or midrange distances. Its breakthrough is gaining attention in a number of application fields, such as radiofrequency identification, small batteryless home appliances, mobile devices and electrical vehicles recharging, wireless and body sensor networks. The paper deals with wireless power transmission technology based on the third approach, and takes into account two classes of applications: contactless recharging and batteryless supply. Contactless recharging involves the possibility of keeping an electrical equipment, and specifically its internal battery, grid disconnected, without giving up to its recharging. Batteryless supply permits the functioning of remote wireless equipment, often deployed in networked architectures, which are more and more valued for their fast installation and easy re-positioning features. For both classes, the benefits that can be achieved by adopting wireless power transmission are also highlighted. An experimental study is finally carried out. To this end, a typical architecture of a power transmission system relying on resonance-based coupling mechanisms is implemented. The ground electronics of the simple set-up, which uses a relaxation oscillator in the primary circuit and a full-rectifier bridge in the secondary to attain DC power, is described in detail. The obtained results show the efficiency of the power transfer mechanism both for nominal operative conditions and different ones characterized by deliberate mismatches.

Wireless Power Transmission Technology for Contactless Recharging and Batteryless Supply / Angrisani, Leopoldo; D'Alessandro, Guido; D'Apuzzo, Massimo; D'Arco, Mauro. - In: JOURNAL OF ENERGY CHALLENGES AND MECHANICS. - ISSN 2056-9386. - I:4(2014), pp. 1-7.

Wireless Power Transmission Technology for Contactless Recharging and Batteryless Supply

ANGRISANI, LEOPOLDO;D'ALESSANDRO, GUIDO;D'APUZZO, MASSIMO;D'ARCO, MAURO
2014

Abstract

During the last years, three main approaches to transmit power without cable connections have been studied. The first one relies on microwave radiating systems, and its performance is mostly limited by the rectenna device, required to pick-up and DC convert the radiated power. This approach has not pervaded application fields since its hazardousness is still not well assessed. Moreover, it has still to face several technological issues and safety concerns before being eligible for application. The second one refers to optical wireless transmission at long distances, which uses laser and photovoltaic diodes for successful operation. The third approach exploits coupled circuits to transmit power upon short or midrange distances. Its breakthrough is gaining attention in a number of application fields, such as radiofrequency identification, small batteryless home appliances, mobile devices and electrical vehicles recharging, wireless and body sensor networks. The paper deals with wireless power transmission technology based on the third approach, and takes into account two classes of applications: contactless recharging and batteryless supply. Contactless recharging involves the possibility of keeping an electrical equipment, and specifically its internal battery, grid disconnected, without giving up to its recharging. Batteryless supply permits the functioning of remote wireless equipment, often deployed in networked architectures, which are more and more valued for their fast installation and easy re-positioning features. For both classes, the benefits that can be achieved by adopting wireless power transmission are also highlighted. An experimental study is finally carried out. To this end, a typical architecture of a power transmission system relying on resonance-based coupling mechanisms is implemented. The ground electronics of the simple set-up, which uses a relaxation oscillator in the primary circuit and a full-rectifier bridge in the secondary to attain DC power, is described in detail. The obtained results show the efficiency of the power transfer mechanism both for nominal operative conditions and different ones characterized by deliberate mismatches.
2014
Wireless Power Transmission Technology for Contactless Recharging and Batteryless Supply / Angrisani, Leopoldo; D'Alessandro, Guido; D'Apuzzo, Massimo; D'Arco, Mauro. - In: JOURNAL OF ENERGY CHALLENGES AND MECHANICS. - ISSN 2056-9386. - I:4(2014), pp. 1-7.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/586669
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact