DC POWER SUPPLY AND AIR CONDITIONER EMPLOYING THE SAME
PROBLEM TO BE SOLVED: To provide a high-efficiency DC power supply by reducing a circuit loss caused by a hysteresis loss that occurs in an AC reactor.SOLUTION: The DC power supply includes a converter circuit 100 for converting AC power to DC power. The converter circuit 100 includes: a diode bridg...
Saved in:
Main Authors | , , , , , |
---|---|
Format | Patent |
Language | English Japanese |
Published |
24.11.2015
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | PROBLEM TO BE SOLVED: To provide a high-efficiency DC power supply by reducing a circuit loss caused by a hysteresis loss that occurs in an AC reactor.SOLUTION: The DC power supply includes a converter circuit 100 for converting AC power to DC power. The converter circuit 100 includes: a diode bridge (D1-D4) formed from a plurality of diodes D1-D4; a plurality of switching elements Q1-Q6; and a first AC reactor L1 and a second AC reactor L2 at a high side or a low side of the converter circuit 100. Power factor control is performed while circulation directions of currents circulating to the first AC reactor L1 and the second AC reactor L2 are limited to one direction by the plurality of switching elements Q5 and Q6.
【課題】交流リアクトルで発生するヒステリシス損失による回路損失を低減し、高効率な直流電源装置を提供する。【解決手段】交流電力を直流電力に変換するコンバータ回路100を有する直流電源装置であって、前記コンバータ回路100に、複数のダイオードD1〜D4からなるダイオードブリッジ(D1〜D4)と、複数のスイッチング素子Q1〜Q6と、前記コンバータ回路100のハイサイドまたはローサイドのどちらか一方に第1の交流リアクトルL1と第2の交流リアクトルL2と、を備え、前記複数のスイッチング素子Q5、Q6によって、前記第1の交流リアクトルL1と第2の交流リアクトルL2のそれぞれに通流する電流の通流方向を一方向に制限しながら、力率改善制御を行う。【選択図】図1 |
---|---|
Bibliography: | Application Number: JP20140089741 |