Title :
The three-level ZVS PWM converter-a new concept in high voltage DC-to-DC conversion
Author :
Pinheiro, J.R. ; Barbi, Ivo
Author_Institution :
Power Electron. Lab., Florianopolis, Brazil
Abstract :
A novel high-frequency DC-to-DC power converter for high-voltage and high power is introduced, which features zero voltage switching (ZVS) operation at constant frequency, regulation by pulse width modulation (PWM) and low RMS current stress upon power switches. Its greatest attribute, in comparison to the ZVS-PWM full bridge converter, is that the voltage across the switches is half the input voltage. This property is achieved due to the use of a three-level leg in place of the conventional two-switch leg. Operation, analysis, design procedure and example, and simulation are presented. A prototype operating at 100 kHz, rated at 600 V input voltage, and 1.5 kW output power and 25 A output current, has been fabricated and successfully tested in the laboratory
Keywords :
network analysis; network synthesis; power convertors; pulse width modulation; switching circuits; 1.5 kW; 100 kHz; 25 A; 600 V; DC/DC power convertor; HF; HV; PWM; RMS current stress; ZVS; design; network analysis; network synthesis; power switches; simulation; three-level leg; zero voltage switching; Bridge circuits; DC-DC power converters; Frequency conversion; Leg; Pulse width modulation; Pulse width modulation converters; Stress; Switches; Switching converters; Zero voltage switching;
Conference_Titel :
Industrial Electronics, Control, Instrumentation, and Automation, 1992. Power Electronics and Motion Control., Proceedings of the 1992 International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0582-5
DOI :
10.1109/IECON.1992.254637
