Analysis design and experimental verification of a quadratic boost converter

Abstract

This paper presents analysis, design and experimentation of a Quadratic Boost Converter (QBC). Operation of the QBC is analyzed, leading to mathematical expressions that can be used to design the converter. Based on the derived analytical expressions, a 100W, 12V-to-48V, QBC converter is designed and built. Experiment shows that the prototyped converter operates satisfactorily throughout its operating range and achieves the highest efficiency of 83%.

Quadratic Boost Converter: An Analysis with Passive Components Losses

“…Assuming that all components are ideal and the converter is operating in Continuous Conduction Mode (CCM) [16] as this operating mode is more suited for photovoltaic applications, the basic equations are as follows [17]:…”

“…That is, there are many works in the field of DC-DC converters with the main objective in renewable energies being high voltage gain with maximum efficiency with reasonable duty cycle [12]- [17]. In this field, quadratic boost converters are good candidates but there are still some problems to solve: how to minimize losses?…”

Analysis and Implementation of Quadratic Boost Converter for Nanogrid Applications

“…The basic circuit of QBC constitutes a boost converter with an assumption of purely resistive load, ideal switch and a constant instantaneous input voltage Vd .Since in steady state operation [3] the waveforms must repeat from one time period to next, the integral of the inductor voltage V L1 and V L2 over one time period must be zero.…”