Low-cost single-stage electronic ballast based on a self-oscillating resonant inverter integrated with a buck-boost PFC circuit

Author

Ribas, Javier ; Alonso, Jose M. ; Calleja, Antonio J. ; Corominas, Emilio L. ; Rico-Secades, Manuel ; Cardesin, Jesús

Author_Institution

tamento de Ingenieria Electr. y Electron., Tecnologia Electron., Oviedo Univ., Spain

Volume

48

Issue

6

fYear

2001

fDate

12/1/2001 12:00:00 AM

Firstpage

1196

Lastpage

1204

Abstract

In this paper, a new solution to implement and control a single-stage electronic ballast based on the integration of a buck-boost power-factor-correction stage and a half-bridge resonant inverter is presented. The control signals are obtained from the inverter resonant current by means of a saturable transformer. Core saturation is used to control the required dead time between the control pulses of both switches. Since no special integrated circuits are required to control the ballast, the total number of components is minimized and the final cost of the ballast is reduced compared to a typical two-stage configuration. Analysis and basic design guidelines are presented in the paper, together with experimental results obtained from a laboratory prototype

Keywords

DC-DC power convertors; bridge circuits; circuit oscillations; fluorescent lamps; invertors; lamp accessories; power factor correction; resonant power convertors; switching circuits; buck-boost PFC circuit; control signals; core saturation; dead time control; fluorescent lamps; half-bridge resonant inverter; low-cost single-stage electronic ballast; saturable transformer; self-oscillating control; self-oscillating resonant inverter; single-stage converter; Circuit faults; Costs; Electronic ballasts; Guidelines; Laboratories; Pulse transformers; Resonance; Resonant inverters; Switches; Transformer cores;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.969399

Filename

969399