DC-DC Converters with Ripple Cancel Circuit

Conference: Intelec '05 - Telecommunications Conference - 27th International Telecommunication Energy Conference
09/18/2005 - 09/22/2005 at Berlin, Germany

Proceedings: Intelec '05 - Telecommunications Conference

Pages: 6Language: englishTyp: PDF

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Sato, Terukazu; Nabeshima, Takashi; Nishijima, Kimihiro; Nakano, Tadao (Oita University 700 Dannoharu, Oita, Japan)
Sekine, Masaoki (Origin Electric Co., Ltd. 1-18-1 Takada, Toyoshima, Tokyo, Japan)

In this paper, various kinds of ripple reduction topologies for switching converters are presented. A ripple canceller employing auxiliary switches is initially introduced and its steady state and small signal ac analysis are examined. Next, a ripple canceller using a voltage transformer, which needs no additional switches and drive circuits, are proposed. Finally, a ripple reduction circuit employing a current transformer, the simplest among all topologies, is proposed. For all topologies, the control-to-output transfer functions are experimentally investigated and comparative studies on the proposed topologies are performed.