Interface circuits for usb - and illumination applications

摘要

According to one embodiment of the present invention comprises a method for operating a power supply circuit receiving an input signal, which a request for a target - power supply voltage and / or a - current at an interface circuit to a secondary side an adaptive power supply. The input signal is converted into a digital signal, which the target - power supply voltage and / or has the - current. The digital signal is by way of a galvanically separate signal path to a control unit in a primary side of the adaptable transmitted power supply.