Author
Abouzeid, Mohamed Osama Hussein Soliman, Tekin, Ahmet
Publication Date
2017
Publication Place
-
IEEE
Subject
Coil design, Wireless power transfer, Wireless charging
Type
Document
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
978-1-4673-6853-7
Record ID
c29dcd0b-cc48-4c3e-8166-9aefddea2b05
Library Location
Electrical & Electronics Engineering
Date
2017
Notes
Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Sample Text
This paper presents a low cost wireless power transfer system tailored particularly for size limited insulation sealed wearable devices. The 5-V USB input system features a crystal oscillator as reference signal source, a class-E power stage, a transmit coil with tunable series resonance and a feedback path to tune the resonance for peak power transmission. Regardless of the receive coil, load, component variations or any external blockers, the system continuously targets peak power at the strict center frequency of 6.78 MHz for compliance with international frequency regulations. Design choices and experimental measurement results were presented along with detailed circuit diagrams. The design can transfer around 50mW power to a 15mm × 17mm × 1mm 40-turn receive coil in a charging pad area of as wide as 9cm × 9cm.
DOI
10.1109/ISCAS.2017.8050849
