A 1-kW isolated noncascaded boost buck-boost AC/DC PFC power supply based on reduced redundant power processing principle

Author

Cheung, Martin K H ; Chow, Martin H L ; Tse, Chi K.

Author_Institution

Dept. of Electron. & Inf. Eng., Hong Kong Polytech. Univ., China

fYear

2002

fDate

2002

Firstpage

619

Lastpage

626

Abstract

This paper addresses a noncascaded connection of two power converters for achieving power factor correction (PFC) and fast voltage regulation for high power applications. The noncascaded structure can inherently achieve a higher overall efficiency because part of the input power is processed by only one power conversion stage before it is transferred to the output load. A PFC AC/DC power supply that employs an isolated boost full-bridge (EBFB) converter for PFC with noncascaded connection to a buck-boost converter for voltage regulation is described. A prototype of the proposed power supply is constructed and the experimental waveforms are given.

Keywords

AC-DC power convertors; bridge circuits; power factor correction; redundancy; 1 kW; boost full bridge converter; buck-boost converter; fast voltage regulation; high power applications; isolated noncascaded boost buck-boost AC/DC PFC power supply; output load; power converters; power factor correction; power supply; reduced redundant power processing; Analog-digital conversion; Buffer storage; Power conversion; Power engineering and energy; Power factor correction; Power supplies; Radio access networks; Reactive power; Regulators; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference, 2002. INTELEC. 24th Annual International

Print_ISBN

0-7803-7512-2

Type

conf

DOI

10.1109/INTLEC.2002.1048721

Filename

1048721