A Novel Buck-Boost Converter with an Enhanced Negative Output Voltage

Abstract

This paper proposes the theoretical design of a novel buck-boost converter with an enhanced negative output voltage than conventional converters. It is beneficial for applications that require a wide range of conversion ratio. The steady-state as well as power-loss analyses of the proposed converter operating in continuous conduction mode are examined. Comparison with typical negative output converters like the buck-boost converter, self-lift Luo converter and hybrid buck-boost converter is also presented to emphasize the proposal. The design is simulated and tested by using MATLAB/SIMULINK software and found that the results consistently showed sensible conformity with the analysis. Keywords: conversion ratio, DC–DC power converters, negative output, steady state