POWER CONVERSION DEVICE

• Main Author: NAKAI MOTOO
• Format: Patent
• Language: English; Japanese
• Published: 15.12.2016
• Subjects: 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

PROBLEM TO BE SOLVED: To provide a power conversion device capable of shortening a wiring path between a switching element and a snubber circuit element, and of reducing a surge voltage.SOLUTION: A power conversion device 1 includes a wiring board 21 having a pattern surface 23 on which a wiring pattern 22 is formed. On the wiring board 21, a first switching element 10U is bonded. The first switching element 10U has one surface 31 having a drain electrode 12 and a source electrode 13 formed at a distance from each other, and the other surface 32 opposite to the one surface 31. The first switching element 10U is bonded on the wiring board 21 in a state where the one surface 31 is opposed to the pattern surface 23 of the wiring board 21. A snubber circuit element 17 is interposed between the wiring board 21 and the first switching element 10U. The snubber circuit element 17 is electrically connected with the drain electrode 12 and the source electrode 13, between the wiring board 21 and the first switching element 10U.SELECTED DRAWING: Figure 5 【課題】スイッチング素子およびスナバ回路素子間の配線経路を短縮し、サージ電圧を低減できる電力変換装置を提供する。【解決手段】電力変換装置１は、配線パターン２２が形成されたパターン面２３を有する配線基板２１を含む。配線基板２１上には、第１スイッチング素子１０Ｕが接合されている。第１スイッチング素子１０Ｕは、互いに間隔を空けて形成されたドレイン電極１２およびソース電極１３を有する一方表面３１と、その反対の他方表面３２とを有している。第１スイッチング素子１０Ｕは、一方表面３１を配線基板２１のパターン面２３に対向させた状態で配線基板２１上に接合されている。配線基板２１と第１スイッチング素子１０Ｕとの間には、スナバ回路素子１７が介在している。スナバ回路素子１７は、配線基板２１と第１スイッチング素子１０Ｕとの間で、ドレイン電極１２およびソース電極１３に電気的に接続されている。【選択図】図５