Title :
Investigation of a novel high-power-factor electronic ballast based on the input current shaper
Author :
Alonso, J.M. ; Calleja, A.J. ; Ribas, J. ; Lopez, E. ; Rico, M. ; Sebastian, J. ; Arau, J. ; Ponce, M.
Author_Institution :
Oviedo Univ., Spain
Abstract :
This paper investigates the characteristics and features of a novel high input power factor electronic ballast based on the input current shaper (ICS) arrangement. The ICS is implemented between main rectifier and bulk capacitor in order to increase the conduction angle of the main rectifier diodes up to a minimum value to obtain low current harmonics injected to the mains. In this paper, the ICS is implemented using a flyback converter operating in discontinuous conduction mode, and the ballast features both good efficiency and dimming capability. Experimental results from a 40 W fluorescent lamp prototype are presented to evaluate the proposed solution
Keywords :
fluorescent lamps; lamp accessories; power conversion harmonics; power convertors; power factor; 40 W; bulk capacitor; conduction angle; dimming capability; discontinuous conduction mode; flyback converter; high-power-factor electronic ballast; input current shaper; low current harmonics injection; rectifier; rectifier diodes; Capacitors; Costs; Diodes; Electronic ballasts; Fluorescent lamps; Power harmonic filters; Reactive power; Rectifiers; Resonant inverters; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 1999. PESC 99. 30th Annual IEEE
Conference_Location :
Charleston, SC
Print_ISBN :
0-7803-5421-4
DOI :
10.1109/PESC.1999.785650
