Class-E power converters for AC (50/60 Hz) wireless transmission
| Autor: | C. Branas, M. Lobeira, Jose R. Perez-Cisneros, J. de Mingo, Jose A. Garcia, M. Nieves Ruiz |
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| Přispěvatelé: | Universidad de Cantabria |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Engineering
Rectenna business.industry Rectifier Amplifier RF power amplifier GaN HEMT Electrical engineering Schottky diode 020206 networking & telecommunications 02 engineering and technology Power factor High-electron-mobility transistor Class-E DC AC Wireless power transmission Ultra high frequency 0202 electrical engineering electronic engineering information engineering Power amplifier Waveform Inverter business |
| Zdroj: | IEEE MTT-S International Microwave Symposium (IMS), San Francisco, 2016, 515-518 UCrea Repositorio Abierto de la Universidad de Cantabria Universidad de Cantabria (UC) |
| Popis: | In this paper, class-E power amplifiers (PAs) and rectifiers, operating at UHF band, are properly integrated in efficient AC-to-RF and RF-to-AC converters for their use in 50/60 Hz wireless power transmission (WPT). Slightly modifying a center-tap full-wave rectifier, it is proved that a 915 MHz frequency carrier may be high-level amplitude modulated by each of the semi-cycles of the utility waveform. Assuming those components are transmitted by means of orthogonal antenna polarizations, the high-fidelity recovery of both semi-sinusoids in the remote position is also demonstrated, to be stepped-up and combined at the ∆ port of an additional center-tap transformer. GaN HEMT packaged devices were selected for the designed PAs, while Schottky diodes for the rectifiers, resulting in average efficiency figures of 83.3% and 75.4%, respectively. The authors would like to thank the Ministry of Economy and Competitiveness by the financial support provided through projects TEC2014-58341-C4-1-R and TEC2014- 58341-C4-2-R, co-funded with FEDER. José R. PérezCisneros also thanks the support to his stay at the Univ. of Cantabria provided by the pre-doctoral mobility grant EEBBI-15-10447. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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