A novel ZVS buck converter topology for VRM applications

The paper presents a novel ZVS buck converter topology. The proposed topology solves narrow duty cycle and hard switching problems of conventional buck converter in lower output voltage and higher output current. At the same times, the voltage stresses across main switches are also clamped at input...

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Published in2011 6th IEEE Conference on Industrial Electronics and Applications pp. 2374 - 2379
Main Author Jinbin Zhao
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2011
Subjects
Capacitors
Equations
Inductors
Mathematical model
Switches
Topology
Zero voltage switching
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ISBN9781424487547
1424487544
ISSN2156-2318
DOI10.1109/ICIEA.2011.5975990

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Abstract The paper presents a novel ZVS buck converter topology. The proposed topology solves narrow duty cycle and hard switching problems of conventional buck converter in lower output voltage and higher output current. At the same times, the voltage stresses across main switches are also clamped at input voltage. In the topology, an adjustable inductor and a resonant capacitor are used to reduce charge voltage and extend the discharge time of filter inductor to achieve above target. To demonstrate the results, detailed steady-state analysis is presented. Finally, a 48V/1V, 10A simulation prototype is built to verify the theoretical analysis and shows the significant advantages.
AbstractList The paper presents a novel ZVS buck converter topology. The proposed topology solves narrow duty cycle and hard switching problems of conventional buck converter in lower output voltage and higher output current. At the same times, the voltage stresses across main switches are also clamped at input voltage. In the topology, an adjustable inductor and a resonant capacitor are used to reduce charge voltage and extend the discharge time of filter inductor to achieve above target. To demonstrate the results, detailed steady-state analysis is presented. Finally, a 48V/1V, 10A simulation prototype is built to verify the theoretical analysis and shows the significant advantages.
Author Jinbin Zhao
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Snippet The paper presents a novel ZVS buck converter topology. The proposed topology solves narrow duty cycle and hard switching problems of conventional buck...
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StartPage 2374
SubjectTerms Capacitors
Equations
Inductors
Mathematical model
Switches
Topology
Zero voltage switching
Title A novel ZVS buck converter topology for VRM applications
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