Title :
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
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;
Conference_Titel :
Telecommunications Energy Conference, 2002. INTELEC. 24th Annual International
Print_ISBN :
0-7803-7512-2
DOI :
10.1109/INTLEC.2002.1048721
