An auxiliary power supply apparatus includes a first switching circuit and a second switching circuit. The first switching circuit is disposed between a charging circuit and positive terminals of a plurality of auxiliary power supplies. The first switching circuit is configured to perform switching between or among the auxiliary power supplies such that at least one of the auxiliary power supplies is connected to the charging circuit, and the other auxiliary power supply or supplies is or are connected to a power supply destination. The second switching circuit is configured to perform switching between a parallel connection state and a series connection state. In the parallel connection state, the auxiliary power supplies are connected in parallel between a main power supply and the first switching circuit. In the series connection state, the auxiliary power supplies are connected in series between the main power supply and the first switching circuit.
AUXILIARY POWER SUPPLY APPARATUS AND POWER SUPPLY SYSTEM
HILFSSTROMVERSORGUNGSVORRICHTUNG UND STROMVERSORGUNGSSYSTEM
APPAREIL D'ALIMENTATION AUXILIAIRE ET SYSTÈME D'ALIMENTATION ÉLECTRIQUE
2018-11-21
Patent
Electronic Resource
English
AUXILIARY POWER SUPPLY DEVICE AND AUXILIARY POWER SUPPLY CONTROL SYSTEM
European Patent Office | 2018
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