Wide load range three-level ZVS-PWM DC-to-DC converter

Author

Pinheiro, Renes ; Barbi, Ivo

Author_Institution

Federal Univ. of Santa Maria, Brazil

fYear

1993

fDate

20-24 Jun 1993

Firstpage

171

Lastpage

177

Abstract

A new three-level ZVS-PWM DC-DC converter operating in a wide load range is introduced. It is used for high-voltage and high-power applications and has as its main features: zero-voltage-switching (ZVS) from no load up to full load, operation at constant frequency, regulation by pulse-width modulation (PWM), and low RMS current stress upon power switches. Its greatest attribute is that the voltage across the switches is half the value of the input voltage. A prototype operating at 100 kHz, rated at 600 V input voltage, 1.5 kW output power, and 25 A output current, has been fabricated and successfully tested in the laboratory. The principle of operation, theoretical analysis, design procedure, and an example, along with experimental results, are presented

Keywords

DC-DC power convertors; PWM power convertors; switching circuits; 1.5 kW; 100 kHz; 25 A; 600 V; ZVS-PWM DC-to-DC converter; constant frequency operation; design procedure; high-power; high-voltage; low RMS current stress; operation; power switches; theoretical analysis; three-level convertor; wide load range; zero-voltage-switching; DC-DC power converters; Frequency; Power generation; Prototypes; Pulse width modulation; Space vector pulse width modulation; Stress; Switches; Testing; 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.1993.471920

Filename

471920