Novel soft-switching dc-dc power converter with high-frequency transformer secondary-side phase shifted PWM active rectifier

Takeshi Morimoto, Shinya Shirakawa, Eiji Hiraki, Mutsuo Nakaoka

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

This paper presents a novel prototype of soft-switching PWM DC-DC power converter using synchronous active power switches in series with each rectifier diode in high-frequency transformer secondary side. This high-efficient soft-switching DC-DC power converter topology with transformer link that is suitable for high-power applications can completely achieve soft-switching under the condition of no freewheeling current operation and wide load variations. Using the proposed soft-switching PWM DC-DC power converter, switching losses of active power devices and their conduction losses are both reduced as compared with the previously-developed soft-switching PWM DC-DC converter. The steady-state operating characteristics of the proposed power converter circuit and its unique features are illustrated and discussed on the basis of the simulation analysis and some results of 2kW-40kHz experimentation.

Original languageEnglish
Pages (from-to)5-3
Number of pages3
JournalINTELEC, International Telecommunications Energy Conference (Proceedings)
Publication statusPublished - Dec 1 1999
Externally publishedYes
EventProceedings of the 1999 21st International Telecommunications Energy Conference (INTELEC'99) - Copenhagen, Denmark
Duration: Jun 6 1999Jun 9 1999

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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