Single-switch electronic ballast with continuous input current charge pump power-factor correction

Author

Lin, Chang-Shiarn ; Chen, Chern-Lin

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

47

Issue

6

fYear

2000

fDate

12/1/2000 12:00:00 AM

Firstpage

1263

Lastpage

1270

Abstract

This paper presents a single-switch electronic ballast with continuous input current charge pump power-factor correction. The ballast circuit is composed of a series/parallel inverter, a charge pump power-factor corrector, and a dimming controller. The characteristics and design considerations of this ballast are discussed in this paper. Dimming control is achieved by varying the switching frequency. The frequency-modulation scheme is used to reduce the low-frequency output current ripple. A prototype of a 36WT8 fluorescent lamp ballast has been implemented and tested. Experimental results verify the analytical derivations.

Keywords

fluorescent lamps; frequency control; invertors; lamp accessories; lighting; lighting control; power factor correction; switching circuits; 36WT8 fluorescent lamp ballast; ballast circuit; charge pump power-factor corrector; continuous input current charge pump; dimming controller; frequency-modulation; low-frequency output current ripple reduction; power-factor correction; series/parallel inverter; single-switch electronic ballast; switching frequency variation; Charge pumps; Circuits; Diodes; Electronic ballasts; Filters; Fluorescent lamps; Inductors; Inverters; Resonance; Switches;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.887954

Filename

887954