POWER SUPPLY DEVICE AND SWITCHING ARRANGEMENT WITH SAID POWER SUPPLY DEVICE

摘要

Disclosed is a power supply device comprising an intermediate power storage unit (CL; LL), a main power storage unit (C) and a switching device (S), whereby the switching device (S) has at least two switching states. The intermediate power storage unit (CZ ;L) is connected to a power supply input (E) in a first switching state and connected to the main power storage unit (C) in a second switching state. The main power storage unit (C) is connected to a power supply output (A) in a second switching state.