POWER CONVERSION DEVICE

To solve such a problem that noise is generated due to switching of each switching element in a power conversion device.SOLUTION: A power conversion device 10 includes a metal housing 20, a plurality of power conversion circuits 30, and a control unit controlling each power conversion circuit. Each...

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Bibliographic Details
Main Author ISHIKURA YUKI
Format Patent
LanguageEnglish
Japanese
Published 10.06.2024
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Summary:To solve such a problem that noise is generated due to switching of each switching element in a power conversion device.SOLUTION: A power conversion device 10 includes a metal housing 20, a plurality of power conversion circuits 30, and a control unit controlling each power conversion circuit. Each power conversion circuit 30 includes a high potential input terminal and a low potential input terminal, an output terminal 23, an input capacitor, an inductor, a switching element, and a first common mode choke coil. The first common mode choke coil includes a magnetic core. The first common mode choke coils of two or more of the power conversion circuits 30 share the same magnetic core. The control unit controls on/off of each switching element in each power conversion circuit 30 such that the timing of on/off of each switching element is deviated.SELECTED DRAWING: Figure 1 【課題】各スイッチング素子のスイッチングに起因してノイズが発生する。【解決手段】電力変換装置10は、金属筐体20と、複数の電力変換回路30と、各電力変換回路を制御する制御部と、を備え、各電力変換回路30は、高電位入力端子及び低電位入力端子と、出力端子23と、入力コンデンサと、インダクタと、スイッチング素子と、第1コモンモードチョークコイルと、を備えている。第1コモンモードチョークコイルは、磁性コアを備えている。2以上の電力変換回路30の各第1コモンモードチョークコイルは、同一の磁性コアを共有している。制御部は、各電力変換回路30の各スイッチング素子のオンオフのタイミングがずれるように、各スイッチング素子をオンオフ制御する。【選択図】図1
Bibliography:Application Number: JP20220190494