| 摘要 |
The invention relates to a device and method for supplying direct voltage, wherein said device comprises a first connection arrangement (3, 4) for a first direct voltage source (8) and a second connection arrangement (5, 6, 7) for a second direct voltage source (11), wherein the device (1) is provided with a protective element (18) which is connected to the first connection arrangement (3, 4) and prevents from a charge equalisation between one direct voltage source (8, 11) and the other direct voltage source (11, 8). The aim of said invention is to ease the direct voltage supply (2). For this purpose, the protective element (18) is also connected to the second connection arrangement (5, 6, 7) in order to prevent the defective operation of the device (1) in the case of the reversed polarity of the first direct voltage source (8). |
