TY - GEN
T1 - Wireless power transfer integrated board for low power IoT applications
AU - Pardue, Colin
AU - Davis, Anto
AU - Bellaredj, Mohamed
AU - Swaminathan, Madhavan
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2018/4/6
Y1 - 2018/4/6
N2 - IoT edge devices are of interest to sustainability research because of their support for low energy applications. This work focuses on a wireless power transfer (WPT) system at GHz frequency based on near field coupling (NFC) with a class E rectifier and DC-DC converter with power inductor, designed for loads in the mW range. The design is completed on an integrated board, allowing for integration of the WPT coils and power inductor on the circuit board with designed electrical characteristics. The WPT coils and class E rectifier are designed for maximum efficiency, minimizing the losses associated with high frequency, low power operation. A commercial off the shelf (COTS) buck converter is integrated into the architecture to fix the output voltage. The power inductor is fabricated with a Nickel Zinc ferrite epoxy composite screen printed on the top and bottom layer of the integrated board. The complete circuit design is fabricated and measured, with the total measured system efficiency peaking at 22.7% power efficiency at a WPT transmission distance of 2 mm.
AB - IoT edge devices are of interest to sustainability research because of their support for low energy applications. This work focuses on a wireless power transfer (WPT) system at GHz frequency based on near field coupling (NFC) with a class E rectifier and DC-DC converter with power inductor, designed for loads in the mW range. The design is completed on an integrated board, allowing for integration of the WPT coils and power inductor on the circuit board with designed electrical characteristics. The WPT coils and class E rectifier are designed for maximum efficiency, minimizing the losses associated with high frequency, low power operation. A commercial off the shelf (COTS) buck converter is integrated into the architecture to fix the output voltage. The power inductor is fabricated with a Nickel Zinc ferrite epoxy composite screen printed on the top and bottom layer of the integrated board. The complete circuit design is fabricated and measured, with the total measured system efficiency peaking at 22.7% power efficiency at a WPT transmission distance of 2 mm.
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U2 - 10.1109/SusTech.2017.8333523
DO - 10.1109/SusTech.2017.8333523
M3 - Conference contribution
AN - SCOPUS:85049639283
T3 - 2017 IEEE Conference on Technologies for Sustainability, SusTech 2017
SP - 1
EP - 6
BT - 2017 IEEE Conference on Technologies for Sustainability, SusTech 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 5th Annual IEEE Conference on Technologies for Sustainability, SusTech 2017
Y2 - 12 November 2017 through 14 November 2017
ER -
