Center tapped preregulator based on three-state switching cell for ups applications

Author

Câmara, Raphael Amaral da ; Cruz, Cícero M T ; Torrico-Bascopé, René P.

Author_Institution

Energy Process. & Control Group, Fed. Univ. of Ceara, Fortaleza

fYear

2008

fDate

15-19 June 2008

Firstpage

2441

Lastpage

2446

Abstract

This paper presents a novel center tapped preregulator topology based on three-state switching cells for uninterruptible power supplies (UPS) applications. The main features of this preregulator are: reduced conduction losses on the controlled switches, magnetic components operating with the double of switching frequency reducing weight and volume, reduced high-frequency current ripple, simple control strategy that can be implemented with well know integrated circuits and connection between input power supply and converter output enabling the use of UPS inverter and by-pass. A theoretical analysis and experimental results from a 3 kW laboratory prototype are presented.

Keywords

invertors; switching convertors; uninterruptible power supplies; center tapped preregulator topology; conduction loss reduction; integrated circuits; magnetic components; switching frequency; three-state switching cell; uninterruptible power supplies; Inverters; Magnetic analysis; Magnetic switching; Power supplies; Switches; Switching circuits; Switching converters; Switching frequency; Topology; Uninterruptible power systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2008. PESC 2008. IEEE

Conference_Location

Rhodes

ISSN

0275-9306

Print_ISBN

978-1-4244-1667-7

Electronic_ISBN

0275-9306

Type

conf

DOI

10.1109/PESC.2008.4592307

Filename

4592307