Title :
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
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;
Conference_Titel :
Power Electronics Specialists Conference, 2008. PESC 2008. IEEE
Conference_Location :
Rhodes
Print_ISBN :
978-1-4244-1667-7
Electronic_ISBN :
0275-9306
DOI :
10.1109/PESC.2008.4592307
