A New High Frequency, Zero Voltage Switched, PWM Converter

A New High Frequency, Zero Voltage Switched, PWM Converter

  • Date of Publication 23 Feb 1992
  • Meeting end date 27 Feb 1992
  • On page 657-664
  • Location Boston, MA, USA
  • Conference/Proceedings Applied Power Electronics Conference and Exposition, February 1992. APEC '92. Conference Proceedings 1992, Seventh Annual

A high efficiency, high power density converter, operating at constant frequency and switching at zero voltage is presented. Zero voltage switching conditions are achieved over a broad input voltage and output current range. Continuous power transfer from the input to the output minimizes the output filter requirements and by using integrated magnetic technique, high power density can be achieved. By employing the same configuration to classical PWM topologies, a new family of ZVS-PWM converters can be derived. An experimental 5V, 100A converter was designed and built. The converter operates from an input voltage of 200Vdc to 400Vdc, at 400 KHz switching frequency.