Title :
Non-inverting buck-boost power-factor-correction converter with wide input-voltage-range applications
Author :
Lin, Ray-Lee ; Wang, Rui-Che
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
Abstract :
This paper presents a non-inverting buck-boost based power-factor-correction (PFC) converter operating in the boundary-conduction-mode (BCM) for the wide input-voltage-range applications. Unlike other conventional PFC converters, the proposed non-inverting buck-boost based PFC converter has both step-up and step-down conversion functionalities to provide positive DC output-voltage. In order to reduce the turn-on switching-loss in high frequency applications, the BCM current control is employed to achieve zero current turn-on for the power switches. Besides, the relationships of the power factor versus the voltage conversion ratio between the BCM boost PFC converter and the proposed BCM non-inverting buck-boost PFC converter are also provided. Finally, the 70-watt prototype circuit of the proposed BCM buck-boost based PFC converter is built for the verification of the high frequency and wide input-voltage-range.
Keywords :
power convertors; power factor correction; BCM current control; BCM noninverting buck-boost PFC converter; boundary-conduction-mode; input-voltage range applications; power 700 W; power factor correction; power switches; Converters; Equations; Inductors; Logic gates; Prototypes; Reactive power; Voltage measurement; boost converter; boundary-conduction-mode (BCM); buck-boost converter; power-factor-correction (PFC);
Conference_Titel :
IECON 2010 - 36th Annual Conference on IEEE Industrial Electronics Society
Conference_Location :
Glendale, AZ
Print_ISBN :
978-1-4244-5225-5
Electronic_ISBN :
1553-572X
DOI :
10.1109/IECON.2010.5675217
