C.r.f. Societa Consortile Per Azioni

Giuseppe Catona

Riccardo Groppo

Alberto Manzone

Paolo Reggio

Andrea Pizzato

A system for controlling a power-converter device of a DC/DC type, having an input connected to a first electric battery at an input voltage, and an output connected to a second electric battery at an output voltage, and being provided with: a transformer stage, with a primary winding coupled to the input, and a secondary winding coupled to the output; a switching stage, arranged between the input and the primary winding and supplying an alternating electrical quantity to the primary winding as a function of the input voltage; a rectifier stage arranged between the secondary winding and the output for generating the output voltage. A control stage switching controls the switching stage at a switching frequency, as a function of a measurement signal indicative of an electrical output quantity, by means of a digital average-current-mode control, obtaining the measurement signal by means of a subsampling of the electrical output quantity, at a sampling frequency, lower than the switching frequency.

System and method for digital control of a DC/DC power-converter device, in particular for automotive applications

In an embodiment, an automotive inverter assembly has at least one component for cooling. The inverter assembly has a supporting body for supporting the at least one component. The supporting body defines at least part of a volume through which flows a cooling fluid coupled thermally with the at least one component for cooling.

Automotive inverter assembly

Described herein is a surface-mounted integrated current sensor for use in a printed circuit having a track along which there flows, in use, the electric current to be measured. The current sensor comprises a package having a bottom face facing, in use, the printed circuit, and on which there is set an electrically conductive bottom piece, which, in use, makes contact with the track of the printed circuit in such a way as to be traversed by the current to be measured. The current sensor moreover comprises a sensor element, for example a Hall-effect one, designed to generate a voltage proportional to the electric current that flows through the bottom piece.

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Orbassano, Italy

Giuseppe Catona