Abstract: A virtual bass enhancing device for enhancing a virtual bass of an input audio signal includes a demixer, configured to extract at least one audio channel from the input audio signal, wherein the audio channel corresponds to an acoustic source, or to a group of acoustic sources, of the input audio signal, at least one virtual bass enhancing unit configured to generate overtones for enhancing a bass perception of the audio channel, and at least one adder configured to add the overtones to the input audio signal so as to generate an enhanced audio signal.

Abstract: A buck-boost converter includes a converter, for converting an input voltage into an output voltage, the converter including a plurality of switches and an inductor, and a controller for controlling the plurality of switches. The operation of the controller is driven by a finite state machine configured to receive as input state change signals and to provide as output state signals for driving the controller. The state change signals are generated by a comparator based on a comparison of a replica signal and an error signal, wherein the error signal is computed on the basis of a signal representative of a difference between a characteristic of the converter and a predetermined reference signal, and wherein the replica signal is representative of the current flowing through the inductor.

Abstract: The present invention relates to a device (200, 800) for active balancing of a battery (B), the battery (B) comprising a plurality of units (U1-UN) connected in series at a plurality of nodes (N1-NN?1), the device comprising at least one DC/DC converter (210, 610, 710, 8101-810N) configured to transfer charges between a first group (G1) of the plurality of units (U1-UN) and a second group (G2) of the plurality of units (U1-UN), at least one of the first group (G1) and second group (G2 comprising a plurality of the units (U1-UN).

Abstract: A circuit for driving a capacitive load includes an amplifier for driving the load based on an input signal, the amplifier comprising at least a boost converter, a dynamic model configured to track a capacitance of the load and a voltage of the source for powering at least parts of the circuit, an adaptive filter, configured to filter the input signal based on an output of the dynamic model.