Title :
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
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;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2008. APEC 2008. Twenty-Third Annual IEEE
Conference_Location :
Austin, TX
Print_ISBN :
978-1-4244-1873-2
Electronic_ISBN :
1048-2334
DOI :
10.1109/APEC.2008.4522933
