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Single-Stage High-Power-Factor Electronic Ballast with a Symmetrical Class-DE Resonant Rectifier.
- Source :
-
Journal of Power Electronics . May2012, Vol. 12 Issue 3, p429-438. 10p. - Publication Year :
- 2012
-
Abstract
- This paper presents the use of a novel, single-stage high-power-factor electronic ballast with a symmetrical class-DE low-dv/dt resonant rectifier as a power-factor corrector for fluorescent lamps. The power-factor correction is achieved by using a bridge rectifier to utilize the function of a symmetrical class-DE resonant rectifier. By employing this topology, the peak and ripple values of the input current are reduced, allowing for a reduced filter inductor volume of the EMI filter. Since the conduction angle of the bridge rectifier diode current was increased, a low-line current harmonic and a power factor near unity can be obtained. A prototype ballast, operating at an 84-kHz fixed frequency and a 220-Vrms, 50-Hz line input voltage, was utilized to drive a T8-36W fluorescent lamp. Experimental results are presented which verify the theoretical analysis. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 15982092
- Volume :
- 12
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Journal of Power Electronics
- Publication Type :
- Academic Journal
- Accession number :
- 82190816
- Full Text :
- https://doi.org/10.6113/JPE.2012.12.3.429