Wide input wide output (WIWO) DC-DC converter

Author

Cheng, Hao ; Smedley, Keyue

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of California, Irvine, CA

fYear

2008

fDate

24-28 Feb. 2008

Firstpage

1562

Lastpage

1568

Abstract

This paper proposes a new wide input wide output (WIWO) DC-DC converter, which is an integration of buck and boost converters via coupled inductors. Coherent working from stepping down to stepping up can be achieved by proper control scheme. Due to the coupled inductors, wide-step-up and wide-step-down DC-DC conversions are realized. A lossless clamp circuit is applied to store the leakage current so that the turn-off voltage spike of the active switch can be clamped. Experimental results for 12 V - 48 V to 28 V DC-DC conversions verify the theoretical analysis.

Keywords

DC-DC power convertors; inductors; leakage currents; buck-boost converters; coupled inductors; leakage current; lossless clamp circuit; voltage 12 V to 28 V; wide input wide output DC-DC converter; Buck converters; Clamps; Coupling circuits; DC-DC power converters; Inductors; Switches; Switching circuits; Switching converters; Topology; Voltage; WIWO DC-DC converter; boost; buck; coupled inductors; lossless clamp circuit; wide-step-down; wide-step-up;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2008. APEC 2008. Twenty-Third Annual IEEE

Conference_Location

Austin, TX

ISSN

1048-2334

Print_ISBN

978-1-4244-1873-2

Electronic_ISBN

1048-2334

Type

conf

DOI

10.1109/APEC.2008.4522933

Filename

4522933