Wireless Power Transfer Using Harvested Radio Frequency Energy with Magnetic Resonance Coupling to Charge Mobile Device Batteries
This research paper presents the design of a wireless power transfer (WPT) circuit integrated with magnetic resonance coupling (MRC) and harvested radio frequency (RF) energy to wirelessly charge the battery of a mobile device. A capacitor (100 µF, 16 V) in the RF energy harvesting circuit stored th...
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doaj-ea602488b19949b384c9fed9b275e6fb2021-08-26T13:31:05ZengMDPI AGApplied Sciences2076-34172021-08-01117707770710.3390/app11167707Wireless Power Transfer Using Harvested Radio Frequency Energy with Magnetic Resonance Coupling to Charge Mobile Device BatteriesNeetu Ramsaroop0Oludayo O. Olugbara1ICT and Society Research Group, South Africa Luban Workshop, Durban University of Technology, Durban 4000, South AfricaICT and Society Research Group, South Africa Luban Workshop, Durban University of Technology, Durban 4000, South AfricaThis research paper presents the design of a wireless power transfer (WPT) circuit integrated with magnetic resonance coupling (MRC) and harvested radio frequency (RF) energy to wirelessly charge the battery of a mobile device. A capacitor (100 µF, 16 V) in the RF energy harvesting circuit stored the converted power, and the accumulated voltage stored in the capacitor was 9.46 V. The foundation of the proposed WPT prototype circuit included two coils (28 AWG)—a transmitter coil, and a receiver coil. The transmitter coil was energized by the alternating current (AC), which produced a magnetic field, which in turn induced a current in the receiver coil. The harvested RF energy (9.46 V) was converted into AC, which energized the transmitter coil and generated a magnetic field. The electronics in the receiver coil then converted the AC into direct current (DC), which became usable power to charge the battery of a mobile device. The experimental setup based on mathematical modeling and simulation displayed successful charging capabilities of MRC, with the alternate power source being the harvested RF energy. Mathematical formulae were applied to calculate the amount of power generated from the prototype circuit. LTSpice simulation software was applied to demonstrate the behavior of the different components in the circuit layout for effective WPT transfer.https://www.mdpi.com/2076-3417/11/16/7707batterycouplingenergyfrequencymagneticmobile |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Neetu Ramsaroop Oludayo O. Olugbara |
spellingShingle |
Neetu Ramsaroop Oludayo O. Olugbara Wireless Power Transfer Using Harvested Radio Frequency Energy with Magnetic Resonance Coupling to Charge Mobile Device Batteries Applied Sciences battery coupling energy frequency magnetic mobile |
author_facet |
Neetu Ramsaroop Oludayo O. Olugbara |
author_sort |
Neetu Ramsaroop |
title |
Wireless Power Transfer Using Harvested Radio Frequency Energy with Magnetic Resonance Coupling to Charge Mobile Device Batteries |
title_short |
Wireless Power Transfer Using Harvested Radio Frequency Energy with Magnetic Resonance Coupling to Charge Mobile Device Batteries |
title_full |
Wireless Power Transfer Using Harvested Radio Frequency Energy with Magnetic Resonance Coupling to Charge Mobile Device Batteries |
title_fullStr |
Wireless Power Transfer Using Harvested Radio Frequency Energy with Magnetic Resonance Coupling to Charge Mobile Device Batteries |
title_full_unstemmed |
Wireless Power Transfer Using Harvested Radio Frequency Energy with Magnetic Resonance Coupling to Charge Mobile Device Batteries |
title_sort |
wireless power transfer using harvested radio frequency energy with magnetic resonance coupling to charge mobile device batteries |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2021-08-01 |
description |
This research paper presents the design of a wireless power transfer (WPT) circuit integrated with magnetic resonance coupling (MRC) and harvested radio frequency (RF) energy to wirelessly charge the battery of a mobile device. A capacitor (100 µF, 16 V) in the RF energy harvesting circuit stored the converted power, and the accumulated voltage stored in the capacitor was 9.46 V. The foundation of the proposed WPT prototype circuit included two coils (28 AWG)—a transmitter coil, and a receiver coil. The transmitter coil was energized by the alternating current (AC), which produced a magnetic field, which in turn induced a current in the receiver coil. The harvested RF energy (9.46 V) was converted into AC, which energized the transmitter coil and generated a magnetic field. The electronics in the receiver coil then converted the AC into direct current (DC), which became usable power to charge the battery of a mobile device. The experimental setup based on mathematical modeling and simulation displayed successful charging capabilities of MRC, with the alternate power source being the harvested RF energy. Mathematical formulae were applied to calculate the amount of power generated from the prototype circuit. LTSpice simulation software was applied to demonstrate the behavior of the different components in the circuit layout for effective WPT transfer. |
topic |
battery coupling energy frequency magnetic mobile |
url |
https://www.mdpi.com/2076-3417/11/16/7707 |
work_keys_str_mv |
AT neeturamsaroop wirelesspowertransferusingharvestedradiofrequencyenergywithmagneticresonancecouplingtochargemobiledevicebatteries AT oludayooolugbara wirelesspowertransferusingharvestedradiofrequencyenergywithmagneticresonancecouplingtochargemobiledevicebatteries |
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1721194974660263936 |