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J.M. Alonso

Researcher at University of Oviedo

Publications -  247
Citations -  5202

J.M. Alonso is an academic researcher from University of Oviedo. The author has contributed to research in topics: Power factor & Ballast. The author has an hindex of 35, co-authored 239 publications receiving 4889 citations.

Papers
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Journal ArticleDOI

New control strategy in a square-wave inverter for low wattage metal halide lamp supply to avoid acoustic resonances

TL;DR: In this paper, a new control strategy for a high frequency (HF) square wave inverter is presented, which keeps lamp power harmonics at low levels, regardless of the lamp equivalent load.
Proceedings ArticleDOI

Comparison Among Power LEDs for Automotive Lighting Applications

TL;DR: A comparison among the most efficient red, amber/yellow and white Power LEDs currently available from the leading manufacturers is proposed, offering a comparison in terms of luminous efficiency in nominal test conditions, thermal resistance between the junction and the slug and also giving a comparison about the performance depending on junction temperature between the two most efficient LEDs for each colour.
Journal ArticleDOI

Magnetic dimming of electronic ballasts

TL;DR: In this article, a new control method for electronic ballasts based on magnetic regulators is presented, which allows starting and dimming the lamp at constant frequency by adjusting the inductance of the resonant tank.
Proceedings ArticleDOI

Evaluation of a high efficiency boost stage to supply a permanent LED emergency lighting system

TL;DR: In this article, a boost converter to supply a permanent emergency lighting system based on LED was developed to assure a constant current through LEDs for all the battery conditions, and a 30 lumens and 1 hour PELS was built and tested.