Title :
A Novel 50W/in3 and 96.2% efficient 48V/3.5kW single-phase rectifier
Author :
Li Jian ; Zhu Jianhua ; Yang Ruiguo ; Xiang Bo ; Xu Guanghua ; Duan Qingan
Author_Institution :
Emerson Network Power Co. Ltd., Shenzhen, China
fDate :
Sept. 28 2014-Oct. 2 2014
Abstract :
This paper presents the design and experimental performance of a compact, 50W/in3 (3kW/liter), and 96.2% peak efficiency 3.5kW single phase rectifier for telecommunication application. The rectifier is composed of two stages connected in series. The bridgeless PFC boost rectifier with bidirectional switch has less forward diode voltage drop than conventional technologies. The DC-DC converter is based on a full bridge LLC resonant converter with synchronous rectification. A fully digital controller is used to obtain the high power density of the rectifier. The efficiency, PF and THD experimental results obtained from the prototype are also presented.
Keywords :
LC circuits; digital control; harmonic distortion; power conversion harmonics; power factor correction; rectifiers; resonant power convertors; switching convertors; DC-DC converter; THD; bidirectional switch; bridgeless PFC boost rectifier; digital controller; forward diode voltage drop; full bridge LLC resonant converter; power 3.5 kW; power density; single-phase rectifier; synchronous rectification; telecommunication application; voltage 48 V; Density measurement; Inductors; Magnetics; Power system measurements; Rectifiers; Semiconductor diodes; Switches;
Conference_Titel :
Telecommunications Energy Conference (INTELEC), 2014 IEEE 36th International
Conference_Location :
Vancouver, BC
DOI :
10.1109/INTLEC.2014.6972182
