Title :
A high power factor electronic ballast with mitigation of the leakage inductance effects
Author :
Vilela, A., Jr. ; Vaz, A.R. ; Morais, A.S. ; Coelho, E.A.A. ; Farias, V.J. ; de Freitas, L.C. ; Vieira, J.B., Jr.
Author_Institution :
Faculdade de Engenharia Eletrica, Univ. Fed. de Uberlandia, Brazil
Abstract :
This paper presents a high power factor electronic ballast, with a single power stage, feeding two 40 W lamps. The boost converter operating in discontinuous conduction mode (DCM) is used for power factor correction. Coupled inductors allow the voltage inversion on the output series-parallel resonant circuit and consequently at lamps, and a circuit for minimization the voltage stress on the switches, caused by the leakage inductance, is presented. An experimental prototype that operates in 50 kHz was implemented. Experimental results confirm operation of the proposed converter.
Keywords :
DC-DC power convertors; fluorescent lamps; inductance; lamp accessories; magnetic leakage; power factor correction; resonant power convertors; 110 V; 40 W; 50 kHz; 60 Hz; 80 W; boost converter; coupled inductors; discontinuous conduction mode; fluorescent lamps; high power factor electronic ballast; leakage inductance effects mitigation; output series-parallel resonant circuit; single power stage; switches; voltage inversion; voltage stress minimization; Coupling circuits; Electronic ballasts; Inductance; Inductors; Lamps; Minimization; Power factor correction; RLC circuits; Reactive power; Voltage;
Conference_Titel :
Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual
Print_ISBN :
0-7803-7754-0
DOI :
10.1109/PESC.2003.1218143
