Circuit Arrangement and Method for Operating a Light Source, in Particular, a Light-Emitting Diode

Abstract

A circuit arrangement for driving a light source, in particular, a light-emitting diode, comprises a first adjustable current path (1), that connects a terminal (BAT_IN) for a battery to a terminal (CAP_IN) for a capacitor, a second current path (2) that connects the terminal (CAP_IN) for a capacitor to a terminal (LED_OUT) for a light source, and a third adjustable current path (3) that connects the terminal (BAT_IN) for a battery to the terminal (LED_OUT) for a light source. A control unit (CTRL) is provided that has a control input (IN) and is set up to adjust current intensities (I_CHRG, I_CAP, I_DIRECT) on the first, second and third control paths (1, 2, 3), respectively, as a function of control signals (I_in) that can be applied to the control input (IN). A method for operating a light source, in particular, a light-emitting diode, is also proposed.

Dependencies are inferred from the claim text.