DocumentCode :
1790299
Title :
AC-DC converter for wireless power transmission of energy harvesting system
Author :
Tae-il Yun ; Jang Hyun Lee ; Jong Jin Baek ; Youn Tae Kim
Author_Institution :
IT Fusion Technol. Res. Center, Chosun Univ., Gwangju, South Korea
fYear :
2014
fDate :
22-25 June 2014
Firstpage :
1
Lastpage :
2
Abstract :
In this study, a high-efficiency AC-DC converter is developed for a wireless power transmission system that transmits power generated from energy harvesting. RF power is transmitted in the frequency of 10-100 MHz, and power of -10 to 15 dBm is received by the AC-DC converter. A matching network is designed according to the received power from resonant coils, and the load resistor is optimized to obtain maximum output power. As a result, conversion efficiency ranging from 50% to a maximum of 87% is achieved in an RF power range of -10 to 15 dBm that has 10-100 MHz frequency. Compared to other converters, the implemented AC-DC converter shows not only 20%-40% higher peak efficiency, but also 20%-50% higher average efficiency. It is suitable for application in wearable devices or body area networks.
Keywords :
AC-DC power convertors; energy harvesting; radiofrequency power transmission; RF power; average efficiency; body area networks; conversion efficiency; efficiency 50 percent to 87 percent; energy harvesting system; frequency 10 MHz to 100 MHz; high-efficiency AC-DC converter; implemented AC-DC converter; load resistor optimization; matching network; maximum output power; peak efficiency; resonant coils; wearable devices; wireless power transmission system; Coils; Energy harvesting; Frequency conversion; Power measurement; Power transmission; Radio frequency; Wireless communication; AC-DC converter; Schottky diode; wireless power transmission;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Consumer Electronics (ISCE 2014), The 18th IEEE International Symposium on
Conference_Location :
JeJu Island
Type :
conf
DOI :
10.1109/ISCE.2014.6884370
Filename :
6884370
Link To Document :
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