A Family of High-Voltage-Gain DC-DC Converters based on a Generalized Structure


A family of high-voltage-gain dc-dc converters derived from a generalized structure with two stages is introduced in this paper. On the input side, a two-phase interleaved boost stage boosts the dc input voltage to output a modified square wave voltage that feeds the second stage. This output of the interleaved boost stage is rectified and further boosted using a voltage multiplier stage. As a result, a high voltage gain is achieved using the proposed converters. The two-phase interleaved boost stage on the input side makes it possible for the converters to be operated using a single source or two independent sources. If a single source is used, the input current drawn is continuous with a very small ripple. Owing to its generalized structure, the proposed family of converters includes both non-isolated and isolated converters with high voltage gains. The high voltage gain and low-ripple continuous input current make these converters appealing in applications like the integration of renewable sources such as solar, fuel cells, etc., on to a 400V dc bus.


Electrical and Computer Engineering

Research Center/Lab(s)

Intelligent Systems Center

Keywords and Phrases

DC-DC Converters; Electric Inductors; Electric Inverters; Electric Windings; Fuel Cells; Gain Measurement; Power Converters; Renewable Energy Resources; Switches; Wave Energy Conversion; High Voltage Gain; Low Voltages; Renewable Energy Source; Square Waves; Two Phase; Voltage Multipliers; HVDC Power Transmission; DC-DC Power Converters; High-Voltage-Gain (HVG) DC-DC Converter; Inductors; Low Voltage; Modified Square Wave (MSW); Renewable Energy Sources; Switches; Two-Phase Interleaved (TPI) Boost Stage; Voltage Multiplier (VM) Stage; Windings

International Standard Serial Number (ISSN)

0885-8993; 1941-0107

Document Type

Article - Journal

Document Version


File Type





© 2017 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Oct 2018