Abstract: An active optical sensor system is disclosed. The active optical sensor system includes a first light emitter and a second light emitter. The active optical sensor system includes a first and second energy storage element connected to a first and second light emitter respectively. The active optical sensor system also includes control circuitry configured to selectively charge the first and second energy storage elements, and discharge the energy storage elements via the light emitters in a first and second emission period respectively. The active optical sensor system also includes a monitoring unit coupled to the energy storage elements to compare a value of a monitoring signal representing the electrical energy stored by the energy storage elements with a predefined threshold value and generate a failure signal depending on the comparison.

Abstract: The present disclosure introduces a charger for inductively charging a mobile device inside a motor vehicle. The charger includes a power source configured to supply electrical energy in the form of DC voltage, a transmitter coil for inductively transferring power to the mobile device, a signal generator configured to generate a sinusoidal signal, and an output stage that is coupled to the power source, the transmitter coil and the signal generator. The output stage is configured to receive the sinusoidal signal as a control signal and to supply to the transmitter coil a current flow, corresponding to the control signal, of the energy provided by the power source.

Abstract: The present disclosure introduces a charger for inductively charging a mobile device inside a motor vehicle. The charger includes a power source configured to supply electrical energy in the form of DC voltage, a transmitter coil for inductively transferring power to the mobile device, a signal generator configured to generate a sinusoidal signal, and an output stage that is coupled to the power source, the transmitter coil and the signal generator. The output stage is configured to receive the sinusoidal signal as a control signal and to supply to the transmitter coil a current flow, corresponding to the control signal, of the energy provided by the power source.