Driver circuit between electromagnetic ballast and led

A device, comprising:

• a rectifier bridge with an input for exchanging a first current signal with an electromagnetic ballast and with an output for providing a second current signal to a light circuit comprising one or more light emitting diodes, and
• a protection circuit for protecting the electromagnetic ballast against one or more parameters of the first current signal obtaining a value larger than a threshold value, the one or more parameters comprising an average value of a rectified version of the first current signal, the protection circuit comprising a detector for detecting the average value of the rectified version of the first current signal or an average value of the second current signal, and comprising a switch for, in response to a detection result, interrupting the second current signal.

A device comprising:

• a rectifier bridge with an input for exchanging a first current signal with an electromagnetic ballast and with an output for providing a second current signal to a light circuit comprising one or more light emitting diodes, and
• a protection circuit for protecting the electromagnetic ballast against one or more parameters of the first current signal obtaining a value larger than a threshold value, the one or more parameters comprising a peak value of the first current signal, wherein the protection circuit comprises a detector for detecting the peak value of the first current signal or a peak value of the second current signal, and comprising a switch for, in response to a detection result, interrupting the second current signal.