| 摘要 |
The invention relates to an apparatus having at least one soft magnetic movable actuation element (2; 13; 24) and at least one first coil (4; 12a-12f; 23a-231) which can be connected to an energy source and in the magnetic field of which, which is produced on account of the excitation by the energy source, the movable actuation element (2; 13; 24) can be moved into a preferred position on account of the soft magnetic material thereof being magnetized by the magnetic field of the coil (4; 12a-12f; 23a-231), wherein a second coil (5; 14a-14d; 26a-26h) is wound around the movable actuation element (2; 13; 24), the ends of which second coil are connected via a diode (D; D1-D5), wherein the diode (D; D1-D5) is connected in a poled manner such that, in the event of magnetization of the movable actuation element (2; 13; 24), which is intended to move the actuation element into the preferred position, no induction current can flow and, in the event of demagnetization, the induced current results in a delay in the demagnetization. |
