Title :
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
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;
Conference_Titel :
Power Electronics Specialists Conference, 2005. PESC '05. IEEE 36th
Conference_Location :
Recife
Print_ISBN :
0-7803-9033-4
DOI :
10.1109/PESC.2005.1581731
