Title :
Designing light sources for solar-powered systems
Author :
Duarte, J.L. ; Wijntjens, J.A.A. ; Rozenboom, J.
Author_Institution :
Eindhoven Univ. of Technology, Netherlands
Abstract :
The design of a fluorescent lamp power circuit for (portable) light sources, using a photovoltaic-supplied battery as an intermediate energy buffer, is documented. The described driver circuit, which is based on a class-E resonant inverter, operates on a high frequency (125 kHz), requires low-cost components and simple design and exhibits high efficiency (over 85%). The circuit provides resonance ignition, sinusoidal lamp current and illumination intensity control. These operating conditions are optimal, and they yield a long tube life. Experimental results from a 7 W lamp are included
Keywords :
design engineering; driver circuits; fluorescent lamps; invertors; lighting; power supplies to apparatus; secondary cells; solar cells; 125 kHz; 7 W; 85 percent; class-E resonant inverter; design; driver circuit; fluorescent lamp; illumination intensity control; lighting; power supplies to apparatus; resonance ignition; secondary cells; sinusoidal lamp current; solar cells; tube life;
Conference_Titel :
Power Electronics and Applications, 1993., Fifth European Conference on
Conference_Location :
Brighton
