Concept and design of hybrid interleaved and isolated micro-converter for low power applications

Author

Zijian Xiao ; Kerachev, Lyubomir ; Cousineau, Marc ; Crebier, Jean-Christophe ; Sarraute, Emmanuel ; Meynard, Thierry ; Lembeye, Yves

Author_Institution

Lab. on PLAsma & Conversion of Energy (LAPLACE), Toulouse, France

fYear

2013

fDate

2-6 Sept. 2013

Firstpage

1

Lastpage

10

Abstract

In this paper, a hybrid interleaved and isolated micro-converter (5V/2A/1MHz) dedicated to low power conversion is presented. In order to be able to address a lot of different applications, its structure is isolated (implementation of a planar coupler) and uses interleaved parallel legs with coupled inductors (lowering internal losses). For very high integration purpose, two chips have been done: one dedicated to the control of the switching-cells and the other implementing the drivers and the power switches. The control part implements an original modular approach dedicated to provide the interleaved carriers and to guaranty the current balancing. The power part discusses the layout constraints to optimize the power density.

Keywords

electric connectors; inductors; isolation technology; low-power electronics; power convertors; chips; coupled inductors; current 2 A; current balancing; drivers; frequency 1 MHz; hybrid interleaved microconverter; interleaved carriers; interleaved parallel legs; isolated microconverter; low power applications; planar coupler; power density; power switches; switching-cells; voltage 5 V; Capacitors; Generators; Integrated circuits; Legged locomotion; Steady-state; Switches; Converter control; Integrated circuit; Interleaved converters; Power integrated circuit;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications (EPE), 2013 15th European Conference on

Conference_Location

Lille

Type

conf

DOI

10.1109/EPE.2013.6631871

Filename

6631871