Title :
A family of low EMI, unity power factor converters
Author :
van der Berg, M. ; Ferreira, J.A.
Author_Institution :
Energy Lab., Rand Afrikaans Univ., Johannesburg, South Africa
Abstract :
A new family of soft switching, unity power factor converters with high input power factor and isolated output is presented. A feature of the converters is a significant reduction of conducted EMI. Six converter topologies have been identified that share a zero voltage switching phase arm on the input boost converter stage. Detailed analysis and experimental results are presented on the double ZVS phase arm, resonant transition converter, which is operated at constant switching frequency
Keywords :
DC-DC power convertors; PWM power convertors; electromagnetic interference; power factor; resonant power convertors; switching circuits; DC/DC converters; PWM control; conducted EMI reduction; constant switching frequency; double ZVS phase arm; high input power factor; input boost converter stage; isolated output; low EMI; resonant transition converter; soft switching; unity power factor converters; zero voltage switching phase arm; Bridge circuits; Circuit topology; DC-DC power converters; Electromagnetic interference; Magnetic resonance; Reactive power; Switches; Switching converters; Zero current switching; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, 1996. PESC '96 Record., 27th Annual IEEE
Conference_Location :
Baveno
Print_ISBN :
0-7803-3500-7
DOI :
10.1109/PESC.1996.548722
