To provide an auxiliary power supply device capable of continuously maintaining a high output voltage state, and supplying electric power to a power supply destination by an auxiliary power supply when a main power supply abnormality occurs.SOLUTION: An auxiliary power supply device 32 includes: a first switching circuit 56 provided between a charging circuit 52 and a positive electrode side terminal of auxiliary power supplies 54 and 55 of a plurality of systems, for switching the auxiliary power supplies 54 and 55 of one system connected to the charging circuit 52 among the auxiliary power supplies of the plurality of systems, and at the same time, switching the auxiliary power supplies of one system connected to a power supply destination 42 so as not to match the auxiliary power supplies of the system connected to the precharge circuit; and a second switching circuit 57 provided between a main power supply 31 and the first switching circuit 56, for switching a parallel connection state where the auxiliary power supplies 54 and 55 of the plurality of systems are connected in parallel, and a series connection state where the auxiliary power supplies 54 and 55 of the plurality of systems are connected in series.SELECTED DRAWING: Figure 2
【課題】高出力電圧状態を継続して維持できるとともに、主電源異常時に補助電源によって電力供給先に電力を供給できる補助電源装置を提供する。【解決手段】補助電源装置32は、充電回路52と複数系統の補助電源54,55の正極側端子との間に設けられ、複数系統の補助電源のうち充電回路52に接続される1系統の補助電源54,55を切り替えると同時に、電力供給先42に接続される1系統の補助電源を前充電回路に接続される系統の補助電源と一致しないように切り替えるための第1切替回路56と、主電源31と第1切替回路56との間に、複数系統の補助電源54,55が並列接続される並列接続状態と、複数系統の補助電源54,55が直列接続される直列接続状態とを切り替えるための第2切替回路57とを含む。【選択図】図2
AUXILIARY POWER SUPPLY DEVICE AND POWER SUPPLY SYSTEM
補助電源装置および電源システム
2018-12-06
Patent
Electronic Resource
Japanese
AUXILIARY POWER SUPPLY DEVICE AND AUXILIARY POWER SUPPLY CONTROL SYSTEM
European Patent Office | 2018
|European Patent Office | 2015
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