| 摘要 |
A circuit for actuating an illumination component is disclosed. A control voltage for actuating the illumination component can be tapped off at a capacitor which can be charged via a charge current proportional to the voltage at the capacitor. The capacitor can be charged with a substantially exponential voltage profile at the capacitor via a first current mirror. The capacitor can be discharged via a second current mirror, the first current mirror and the second current mirror coupled, and the second current mirror provides, via this coupling, a coupling current which is proportional to a discharge current of the capacitor, and the first current mirror produces the charge current, which is substantially proportional to the coupling current. |
