Patent ID: 8773203

Claim:
An amplifier circuit for actuating a light diode, the amplifier circuit, comprising: an entry stage for actuating a driver circuit, which actuates the light diode via a DC current supply, wherein the driver circuit comprises a first transistor and a second transistor that are complementary to one another, wherein emitters of the first and second transistors are electrically connected to one another, a first current source electrically connected between a first base and a first collector of the first transistor, a second current source electrically connected between a second base and a second collector of the second transistor, and a voltage control circuit electrically connected between the first and second bases of the first and second transistors, wherein the DC current supply comprises a coupling capacitor electrically connected to the emitters of both the transistors with a first electrical terminal, and wherein a second electrical terminal of said coupling capacitor is electrically connected to ground via an electric coil and a third current source, the light diode being electrically connected in a conductance direction electrically parallel to the coil and to the third current source, thereby providing a closed-circuit current for the light diode.