Single-stage constant-wattage high-power-factor electronic ballast with dimming capability

Author

Alonso, J.M. ; Calleja, A.J. ; Ferrero, F.J. ; Lopez, Enrique ; Ribas, J. ; Rico-Secades, M.

Author_Institution

Oviedo Univ., Spain

Volume

2

fYear

1998

fDate

17-22 May 1998

Firstpage

2021

Abstract

A novel single-stage high-power-factor electronic ballast is presented in this paper. The ballast is obtained from the integration of a buck-boost converter and a half-bridge LC resonant inverter. The ballast features lamp power regulation against line voltage fluctuations together with high power factor and dimming capability. The steady-state analysis of the ballast is performed and a low-frequency model of the input stage is derived. A design example, including closed-loop circuitry, is also presented. Finally some experimental results from a lab prototype are shown

Keywords

DC-DC power convertors; bridge circuits; closed loop systems; invertors; lamp accessories; optical variables control; power control; power factor; resonant power convertors; buck-boost converter; closed-loop circuitry; dimming capability; half-bridge LC resonant inverter; high-power-factor electronic ballast; input stage model; lamp power regulation; line voltage fluctuations; low-frequency model; single-stage ballast; steady-state analysis; Capacitors; Circuits; Costs; Discharges; Electronic ballasts; Frequency; Lamps; Power generation; Reactive power; Voltage fluctuations;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE

Conference_Location

Fukuoka

ISSN

0275-9306

Print_ISBN

0-7803-4489-8

Type

conf

DOI

10.1109/PESC.1998.703458

Filename

703458