Design and Analysis of a Non-Isolated DC-DC Converter With a High-Voltage Conversion Ratio

In this brief, a new non-isolated high gain DC-DC converter topology is proposed to attain the high-voltage conversion ratio. The high-voltage conversion ratio is achieved without utilizing the coupled inductors and any transformers. The proposed topology utilizes a single power semiconductor switch...

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Bibliographic Details
Published inIEEE transactions on circuits and systems. II, Express briefs Vol. 70; no. 6; pp. 2036 - 2041
Main Authors Rajesh, Ramachandran, Prabaharan, Natarajan, Santhosh, T. K.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.06.2023
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Capacitors
Conversion ratio
DC-DC Converter
DC-DC power converters
Design analysis
efficiency
High gain
High voltages
Inductors
Passive components
power loss
Power rating
Semiconductor diodes
Switches
Topology
Voltage
Voltage converters (DC to DC)
voltage stress
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Summary:In this brief, a new non-isolated high gain DC-DC converter topology is proposed to attain the high-voltage conversion ratio. The high-voltage conversion ratio is achieved without utilizing the coupled inductors and any transformers. The proposed topology utilizes a single power semiconductor switch and its operation is examined under continuous conduction mode (CCM), discontinuous conduction mode (DCM) and boundary conduction mode (BCM). The theoretical analysis and design procedure for passive components are provided with mathematical expressions. The validity of the theoretical analysis is examined by using a laboratory prototype of the proposed converter with a power rating of 200 W. The experimental results are taken under CCM with a 60% duty cycle. The proposed topology is also examined with dynamic changes in duty cycle value and load values. The efficiency and power density of the proposed converter are 90% and 1.03kW/L.
ISSN:1549-7747
1558-3791
DOI:10.1109/TCSII.2022.3226187