Analysis of the Current-Fed Push-Pull Parallel Resonant Inverter Implemented with Unidirectional Switches

Author

Peretz, Mor Mordechai ; Ben-yaakov, Sam

Author_Institution

Dept. of Electr. & Comput. Eng., Ben-Gurion Univ. of the Negev, Beer-Sheva

fYear

2005

fDate

16-16 June 2005

Firstpage

880

Lastpage

884

Abstract

A modified current-fed push-pull parallel resonant inverter (CFPPRI), that includes diodes in series with the switches, was analyzed and tested by simulation and experimentally. The modified power source is capable of producing a low THD output voltage within a relatively wide frequency range. A comparison between the modified topology and the basic CFPPRI, in terms of output signal quality and efficiency was carried out. It was found that the modified inverter is more efficient and that it produces an output signal that is less distorted as the running frequency deviates from resonance. Operation with a capacitive load in an off-resonance mode was demonstrated by driving a rotary piezoelectric motor by the modified inverter

Keywords

harmonic distortion; motor drives; piezoelectric motors; resonant invertors; switching convertors; THD; current-fed push-pull parallel resonant inverter; off-resonance mode; rotary piezoelectric motor; signal quality; unidirectional switches; Analytical models; Diodes; Distortion; Low voltage; Resonance; Resonant frequency; Resonant inverters; Switches; Testing; Topology;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2005. PESC '05. IEEE 36th

Conference_Location

Recife

Print_ISBN

0-7803-9033-4

Type

conf

DOI

10.1109/PESC.2005.1581731

Filename

1581731