Title :
Input current control for bridgeless PFC converter without sensing current
Author :
Hung-Chi Chen ; Chao-Chiang Chung ; Jhen-Yu Liao ; Sheng-Yang Yu
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
The bridgeless power-factor-correction (PFC) converter possesses higher efficiency than the conventional boost-type PFC converter due to its reduced conduction voltage drop and conduction loss. The conventional multiloop control needs to sense the input current to yield the desired sinusoidal current waveform. This paper presents a control method for bridgeless PFC converter to provide sinusoidal current without sensing input current. The performance of the proposed method is demonstrated by the provided results with a 600W prototype.
Keywords :
electric current control; power factor correction; boost-type PFC converter; bridgeless PFC converter; conduction loss; input current control; multiloop control; power 600 W; power-factor-correction; reduced conduction voltage drop; sinusoidal current waveform; Current control; Harmonic analysis; Inductors; Logic gates; Sensors; Switches; Voltage control;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2014 Twenty-Ninth Annual IEEE
Conference_Location :
Fort Worth, TX
DOI :
10.1109/APEC.2014.6803553
