Title :
Miniaturised battery charger using piezoelectric transformers
Author :
Navas, J. ; Bove, T. ; Cobos, J.A. ; Nuño, F. ; Brebol, K.
Author_Institution :
Alcatel Corp. Res. Center, Madrid, Spain
Abstract :
Piezoelectric materials are a technology that in recent years have raised enormous interest for their possible use as power transformers. Their main features are high power densities, absence of electromagnetic noise and high voltage isolation capability. This paper presents the results obtained in a prototype of a miniaturized battery charger for mobile phones. Due to the reduced size of the piezoelectric transformers, the charger has been introduced in a plug type case, smaller than a matchbox
Keywords :
battery chargers; piezoelectric devices; piezoelectric materials; power transformers; electromagnetic compatibility; high voltage isolation capability; miniaturised battery charger; mobile phones; piezoelectric transformers; plug type case; power density; power transformers; Batteries; Electromagnetic interference; Frequency; Magnetic separation; Mobile handsets; Piezoelectric materials; Power transformers; Resonance; Transmitters; Vibrations;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2001. APEC 2001. Sixteenth Annual IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-6618-2
DOI :
10.1109/APEC.2001.911692
