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Wireless Charging System for a Drone Using Two Small Rx Resonator Coils
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- Authors
- Sang-Won KIM, Seong-Min KIM, Jung-Ick MOON, In-Kui CHO
- Issue Date
- 2016-12
- Citation
- Asian Wireless Power Transfer Workshop (AWPT) 2016, pp.1-3
- Language
- English
- Type
- Conference Paper
- Abstract
- Unmanned aerial vehicles (UAV) and drones have critical disadvantage of which their short flight time [1]. Because battery capacity is limited, so most commercial applications the maximum flight time falls around a total of 15~20 minutes. In order to solve this limitation, wireless power transfer (WPT) technology, expedient and automatic battery charging for drones in anytime is will be proposed and described in detail. We propose a wireless charging system for a drone with a 200 W transceiver and 100 W receiver in this paper. The operating resonance frequency is 300 kHz and the magnetic resonance (MR) method was applied to implement the system. The system is composed of Tx base charging station which has a 2-layered coil, feeding coil and 200 W transmitter. Two small receive coils, full-bridge rectified receiver, and a LiPo battery are used for Rx module. Out-of-band BLE (Bluetooth Low Energy) technology for power control is adopted. Seamless charging efficiency is achieved regardless of wherever landing position within base charging station board of drones, receiver system select optimal resonators automatically.
- KSP Keywords
- Battery capacity, Charging efficiency, Commercial application, Full-bridge, Magnetic resonance(MR), Power control(PC), Resonance frequency, Wireless Charging System, battery charging, bluetooth low energy, charging station