Abstract
A major problem in an isolated DC/DC converters operating at high switching frequencies is the attendant switching losses in the semiconductor devices. This can be reduced by introducing either zero-voltage switching (ZVS) or zero-current switching (ZCS) of the semiconductor switches. This paper deals with the simulation, design, fabrication and experimental evaluation of a novel soft-switching full bridge transformer isolated step up/down dc-dc converter. The output voltage of the converter can be set to be higher or lower than the DC input voltage, depending on the selected duty ratio, representing width modulation. Galvanic isolation between the source and load is also achieved in this configuration. The configuration achieves soft switching of all the semiconductor devices in the power circuit, resulting in higher overall efficiency. The system was extended for covering closed loop operation, wherein for a range of values for the set voltage, the ability of the system to maintain the same output voltage the context of variable DC input voltage and/or variable load is verified
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
