To provide a battery charger capable of suppressing reduction of supply power to an on-vehicle secondary battery even in a case where abnormality occurs in a power conversion section.SOLUTION: In a case where abnormality is detected in any one of a primary side of a first transformer 21 in a first power conversion section 20 and a primary side of a second transformer 31 in a second power conversion section 30, a control section 50 stops power supply from a power system 100 to the primary side of the transformer 21 in the power conversion section 20 at an abnormal side, stops power supply from a storage battery 40 to a secondary side of the transformer 31 in the power conversion section 30 at a normal side, increases power supply from the storage battery 40 through a secondary side of the transformer 21 in the power conversion section 20 at the abnormal side to an on-vehicle secondary battery 200, and increases power supply from the power system 100 through the transformer 31 in the power conversion section 30 at the normal side to the on-vehicle secondary battery 200.SELECTED DRAWING: Figure 4
【課題】電力変換部に異常が発生した場合にも車載用二次電池への供給電力の低減を抑制することができる充電器を提供する。【解決手段】制御部50は、第1電力変換部20の第1トランス21の一次側と第2電力変換部30の第2トランス31の一次側のうちのいずれか一方に異常が検出されると、電力系統100から異常側の電力変換部20のトランス21の一次側への電力供給を停止するとともに蓄電池40から正常側の電力変換部30のトランス31の二次側への電力供給を停止し、かつ、蓄電池40から異常側の電力変換部20のトランス21の二次側を介した車載用二次電池200への電力供給を増加させるとともに電力系統100から正常側の電力変換部30のトランス31を介した車載用二次電池200への電力供給を増加させる。【選択図】図4
BATTERY CHARGER
充電器
2021-12-16
Patent
Electronic Resource
Japanese