A family of DC-to-DC PWM converters using a new ZVS commutation cell

Author

Martins, Denizar Cruz ; De Seixas, Falcondes J M ; Brilhante, Jáder A. ; Barbi, Ivo

Author_Institution

Univ. Federal de Santa Catarina, Florianopolis, Brazil

fYear

1993

fDate

20-24 Jun 1993

Firstpage

524

Lastpage

530

Abstract

A commutation cell is proposed that is destined to replace the conventional hard switched one in PWM DC-DC converters, with the following advantages: commutation at zero-voltage for both the active and the passive semiconductor, PWM at constant frequency, no overvoltage across the switches, and no additional current stress in comparison to the hard switching converter counterpart. Auxiliary components rated at very small current are used. Both the main and the auxiliary switches are gated by the same signal, rendering simple the drive circuitry. The principle of operation and analysis are provided. Experimental results obtained from a prototype rated at 300 V and 1.2 kW are also presented

Keywords

DC-DC power convertors; PWM power convertors; commutation; switching circuits; 1.2 kW; 300 V; DC-to-DC PWM converters; ZVS commutation cell; active semiconductor; passive semiconductor; zero voltage switching; DC-DC power converters; Frequency conversion; Pulse width modulation; Pulse width modulation converters; Stress; Switches; Switching circuits; Switching converters; Voltage control; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1993. PESC '93 Record., 24th Annual IEEE

Conference_Location

Seattle, WA

Print_ISBN

0-7803-1243-0

Type

conf

DOI

10.1109/PESC.1993.471979

Filename

471979