Title :
PCB integrated transformer composed with ferrite mosaics for LLC resonant converter
Author :
Wang, Jianing ; Yang, Xu ; Niu, Huapeng ; Wang, Zhaoan ; Liu, Jinjun
Author_Institution :
Sch. of Electr. Eng., Xi´´an Jiaotong Univ., Xi´´an, China
Abstract :
A mosaic structured core composed with ferrite mosaics for passive embedded substrate is described in this paper. The ferrite mosaic structured core is finished after cutting, laminating and assembling the ferrite mosaics which consist of a supporting plate and ferrite units with small size stuck on it. This structure is applied to a transformer design for 48 V to 12 V, 500 W LLC resonant bus converter with efficiency up to 97%. Analysis is conducted to show this structure working well and finite element analysis (FEA) is executed for simulation of the power losses in the new structure core. Experiment results show that gap control is a big challenge to mosaic structured transformers.
Keywords :
mosaic structure; printed circuits; resonant invertors; transformers; LLC resonant converter; PCB integrated transformer; ferrite mosaics; finite element analysis; passive embedded substrate; PCB embedded circuit; ferrite mosaic; mosaic structured core; passive integration; passive substrate;
Conference_Titel :
Energy Conversion Congress and Exposition, 2009. ECCE 2009. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-2893-9
Electronic_ISBN :
978-1-4244-2893-9
DOI :
10.1109/ECCE.2009.5316377
