Penta-Phase Series-Parallel LCsCp Resonant Inverter to Drive 1kW HPS Lamps

Author

Brañas, Christian ; Azcondo, Francisco J. ; Casanueva, Rosario ; Diaz, Francisco J.

Author_Institution

Univ. of Cantabria, Santander

fYear

2007

Firstpage

839

Lastpage

845

Abstract

This paper presents the analysis and design of a new configuration of a resonant inverter suitable for high pressure sodium (HPS) lamp ballast applications. The proposed inverter results from the parallel connection of five class D LCsCp resonant inverters. Since the load current is shared among five equal sections, the circuit is able to drive lamps over 1kW using low cost power MOSFETs and achieves better efficiency than single class D solutions due to the reduction of the conduction losses. The regulation is implemented at constant frequency, modifying the phase displacement of the output voltage of one inverter section with respect to the others.

Keywords

lamp accessories; power MOSFET; resonant invertors; conduction losses; high pressure sodium lamp ballasts; load current; phase displacement; power 1 kW; power MOSFET; series-parallel resonant inverters; Circuits; Costs; Displacement control; Electronic ballasts; Frequency; Ignition; Lamps; MOSFETs; Resonant inverters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2007. 42nd IAS Annual Meeting. Conference Record of the 2007 IEEE

Conference_Location

New Orleans, LA

ISSN

0197-2618

Print_ISBN

978-1-4244-1259-4

Electronic_ISBN

0197-2618

Type

conf

DOI

10.1109/07IAS.2007.132

Filename

4347881