POWER CONVERTER

To provide a power converter with high efficiency at a low cost.SOLUTION: A power converter (3) has a power conversion unit (30) that includes multiple parallel switching elements (S1) are connected in series (S1-S8) in which at least one switching element (S1a-S1b) are connected in parallel. In eac...

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Bibliographische Detailangaben
Hauptverfasser:	FUJII NAOAKI, AKIMASA HISASHI, GOTO SHUSAKU
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	To provide a power converter with high efficiency at a low cost.SOLUTION: A power converter (3) has a power conversion unit (30) that includes multiple parallel switching elements (S1) are connected in series (S1-S8) in which at least one switching element (S1a-S1b) are connected in parallel. In each of the switching elements (S1a-S1b), diodes (D1a-D1b) are formed or connected in anti-parallel. In the multiple parallel switching elements (S1-S8), a parallel switching element (S1) with several parallels is fewer than that of other parallel switching elements is included.SELECTED DRAWING: Figure 16 【課題】低コストで高効率な電力変換装置を実現する。【解決手段】電力変換装置（３）は、少なくとも一つのスイッチング素子（Ｓ１ａ－Ｓ１ｂ）が並列接続された並列スイッチング素子（Ｓ１）が、複数（Ｓ１－Ｓ８）直列に接続された電力変換部（３０）を有する。各スイッチング素子（Ｓ１ａ－Ｓ１ｂ）には逆並列にダイオード（Ｄ１ａ－Ｄ１ｂ）が形成または接続されている。複数の並列スイッチング素子（Ｓ１－Ｓ８）のうち、並列数が他の並列スイッチング素子より少ない並列スイッチング素子（Ｓ１）を含む。【選択図】図１６