NDLI: Contactless battery charger for composite humidity and temperature wireless sensors

Content Provider	IEEE Xplore Digital Library
Author	Marques, H. Borges, B. Ramos, P. Martins, A.
Copyright Year	2011
Description	Author affiliation: Instituto de Telecomunicações, Torre Norte, Av. Rovisco Pais, 1049-001 Lisboa, Portugal (Marques, H.; Borges, B.; Ramos, P.; Martins, A.)
Abstract	This paper presents the analysis and design of a DC-DC series resonant power converter used as a contactless battery charger (5V −1A) for a mobile electronic device. The system is enclosed in a sealed spherical shell containing temperature and humidity wireless sensors and related electronic circuitry for real time composting process monitoring. Some particular characteristics of the device and its physical dimensions impose a maximum distance between the primary and the secondary transformer windings of 20mm. For transformer type core and windings configuration selection criteria, an experimental characterization of loosely coupled power transformers was evaluated. Both simulation and experimental results, obtained in a 150kHz laboratory prototype, were used as evidence of the developed theoretical models and analysis.
Starting Page	1
Ending Page	4
File Size	366898
Page Count	4
File Format	PDF
ISBN	9781424474868
e-ISBN	9781424474875
DOI	10.1109/EUROCON.2011.5929369
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-04-27
Publisher Place	Portugal
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Coils Batteries Couplings Windings Transformer cores Magnetic flux Wireless transmission system Loosely coupled transformer Contactless DC/DC resonant converter
Content Type	Text
Resource Type	Article

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