Step up switching capacitor DC-to-DC converter using ferroelectric capacitor

Abstract

Ferroelectric capacitors based on thin films such as lead zirconate Titanate(PZT) and strontium bismuth titanate (SBT) have capacitance density and significant spontaneous polarization. DC-DC switching polarization switching converter is presented in this paper with the utilization of ferroelectric capacitor. The topology used in this converter is series and parallel which is analyzed using calculations, simulation and experimental results. The performance of these converters are compared with linear capacitors. Due to polarization switching, these converters show better performance in terms of higher output power compared to linear capacitors.