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Ionel Dan Jitaru ITT Powersystem Corporation Tucson, ArizonaIn co-ooeration with Polytechnical Ihstitute of Bucharest 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 magnetics 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 SV, lOOAmp converter was designed and built . The converter operates from an input voltage of 200 to 430 Vdc, at 400Khz switching frequency.

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