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A new three-phase AC-DC zero-voltage-switching isolated converter operating in DCM

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3 Author(s)
Panov, Y.V. ; Virginia Power Electron. Center, Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA ; Lee, F.C. ; Cho, J.G.

As an alternative to two-stage cascaded AC-DC power converters, the paper presents a single-stage three-phase rectifier with input/output isolation. The rectifier contains five active devices driven by a simple PWM controller. The proposed power converter operates in the discontinuous conduction mode (DCM) and provides an improved input current spectrum. Zero voltage switching for all active devices and diodes is implemented in the suggested power converter with low effort. Operational principles and design, as well as experimental results obtained from a 5 kW prototype, are also discussed

Published in:

Industry Applications Conference, 1995. Thirtieth IAS Annual Meeting, IAS '95., Conference Record of the 1995 IEEE  (Volume:3 )

Date of Conference:

8-12 Oct 1995