A Comparative Study of a New ZCS DC-DC Full-Bridge Boost Converter With a ZVS Active-Clamp Converter

Pulse width modulation (PWM) current-fed full-bridge dc-dc boost converters are typically used in applications where the output voltage is considerably higher than the input voltage. In this paper, a comparison is made between two converter topologies of this type-the standard zero-voltage switching...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2012-03, Vol.27 (3), p.1347-1358
Main Authors: Mousavi, A., Das, P., Moschopoulos, G.
Format: Article
Language:English
Subjects:
Active clamp
Applied sciences
Bridge circuits
Capacitors
Circuit properties
Clamps
Comparative studies
Converters
Convertors
dc-dc power conversion
Electric currents
Electric, optical and optoelectronic circuits
Electrical engineering. Electrical power engineering
Electrical equipment
Electrical machines
Electronic circuits
Electronic equipment and fabrication. Passive components, printed wiring boards, connectics
Electronics
Exact sciences and technology
full-bridge converter
LC-resonance
low-power converters
Power electronics, power supplies
Prototypes
pulsewidth modulated (PWM) converters
Signal convertors
soft switching
switch-mode power supply
Switches
Zero current switching
Zero voltage switching
zero-current switching (ZCS)
zero-voltage switching (ZVS)
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Summary:Pulse width modulation (PWM) current-fed full-bridge dc-dc boost converters are typically used in applications where the output voltage is considerably higher than the input voltage. In this paper, a comparison is made between two converter topologies of this type-the standard zero-voltage switching (ZVS) active-clamp topology and a new zero-current switching (ZCS) topology. This paper begins with a review of the operation of the ZVS active-clamp converter and that of ZCS converters in general; the advantages and disadvantages of each approach are stated. A new ZCS-PWM current-fed dc-dc boost full-bridge converter is then introduced. The operation of the new converter is explained and analyzed, and a procedure for the design of its key components is given and demonstrated with an example. Experimental results obtained from a prototype of a ZVS active-clamp converter and the new ZCS converter are presented. Finally, a comparison of the performance of the two converters is made and conclusion based on this comparison is stated.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2011.2118233