Details

Autor(en) / Beteiligte

• Dick, C.P.
• Titiz, F.K.
• De Doncker, R.W.

Titel

A high-efficient LLCC series-parallel resonant converter

Ist Teil von

• 2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2010, p.696-701

Ort / Verlag

IEEE

Erscheinungsjahr

2010

Link zum Volltext

• Volltext

Quelle

IEEE Xplore Digital Library

Beschreibungen/Notizen

• A high efficient LLCC-type resonant dc-dc converter is discussed in this paper for a low-power photovoltaic application. Emphasis is put on the different design mechanisms of the resonant tank. At the same time soft switching of the inverter as well as the rectifier bridge are regarded. Concerning the design rules, a new challenge is solved in designing a LLCC-converter with voltage-source output. Instead of the resonant elements, ratios of them, e.g. the ratio of inductances L s /L p is considered as design parameters first. Furthermore, the derived design rule for the transformer-inductor device fits directly into the overall LLCC-design. Due to the nature of transformers, i.e. the relation of the inductances L s /L p is only a function of geometry, this design parameter is directly considered by geometry. Experimental results demonstrate the high efficiency.