High voltage-gain boost DC-DC converter with tapped-inductor

Abstract

This study presents a novel topology named high voltage-gain boost DC-DC converter with tapped-inductor. The proposed topology provides a high voltage-gain and low input current ripple which are suitable for alternative power sources such as PV and fuel-cell applications. The interleaved control mode can be used to reduce input and output filtering. Moreover, the voltage stress on MOSFETs are clamped, resulting of low onresistance (R DS(ON) ) MOSFET usage to improve efficiency. Addition to providing circuit operation and analysis with symmetric control and interleaved control modes, a simulation and laboratory prototype of the proposed topology was built and inspected under 15-28 V input, 400 V/250 W output and 100 kHz switching frequency. The results showed that the proposed circuit achieved low voltage spikes on MOSFETs. Low R DS(ON) MOSFETs were used to improved efficiency. For interleaved control mode, the input current ripple and output voltage ripple were low, requiring smaller input and output filtering.

Soft-switched high step-up DC/DC boost converter for distributed generation

“…Trazamni et al (2017) has used multilevel voltage multiplier cells to improve voltage gain of DC-DC converters. High-gain boost converters have also been developed by researchers (Arshadi et al, 2015;Axelrod et al, 2009;Laird et al, 2009;Li et al, 2009;Lin et al, 2013;Quang et al, 2014;Vazquez et al, 2007;Xuefeng and Chunying, 2014) using a section of a coupled-inductor in series with the source and other section in series with the load. The voltage gain of coupled-inductor boost converter has been improved further by Jain et al (2014) by transferring the leakage energy of the coupled inductor to the load.…”