A Novel Single-Stage Tandem Soft-Switching Converter with Low Input Current Distortion

Abstract

In order to improve the power factor and reduce the input current harmonics, power factor correction (PFC) converters are utilized. This paper introduces a single-stage continuous conduction mode (CCM) soft-switched power factor correction (PFC) converter with a tandem topology. The proposed topology has two operating modes, namely resonant operation mode and boost operation mode. Such a design and control realizes the zero-voltage switching (ZVS) and zero current switching (ZCS) of the power switches. The proposed topology has been introduced to reduce the total harmonic distortion (THD) of the input current further in the boost PFC converter under lower power and higher output voltage conditions. The simulation and experimental results are presented to verify the effectiveness of the performance of the proposed design and its control.

Conducted emission study in space vector modulated voltage source inverter

“…Conducted emission study in space vector modulated voltage source inverter (Uma Maheswari Yuvaraj) 989 inverter for filter development in high voltage networks is researched [8]. Soft switching topologies also reduce the current distortion [9]. Soft switching for inverter and the effect on EMI mitigation is presented in [10]- [12].…”