| 摘要 |
An electrical drive device (1) comprises a control circuit (3) according to the invention, the control circuit being connected to a voltage source (5) on the input side and to an electric drive motor (4) on the output side. The control circuit (3) comprises two separate return conductors (13, 35), which are interconnected at a connection point (36). One return conductor (13) is connected to the ground terminal (12) of the control circuit (3). A further return conductor (35) is connected to a motor converter (14), a converter control (15), and a back-up capacitor (19). The currents (is, ia) flowing in a back-up circuit (31) and an control circuit (32) are thereby enclosed in the control circuit (3) and separated from a housing (10), such as the chassis of a motor vehicle. The electrical drive device (1) thus has low interference emissions. |
