| 摘要 |
The invention relates to a driver circuit for at least one subscriber terminal. The driver circuit comprises a first driver (14) for amplifying the power of an applied direct voltage signal for supplying power to the subscriber terminal. The first driver (14) is supplied with a first supply voltage (V1). The driver circuit also comprises a second driver (37; 37a, 37b), which is connected in outgoing circuit to the first driver and which is provided for modulating high-frequency signal currents up to the power-amplified direct voltage signal. |
