Abstract: A power factor correction device includes a power supply side which can be connected to an alternating current source, an output side which can be connected to a direct current load, at least a first power inductor electrically connected in series to a first terminal of the power supply side, and a rectifier operatively interposed between the power supply side and the output side. The rectifier includes a diode bridge configured to convert the alternating current from the source into a direct current towards the load, and one or more switches which can be selectively switched between an open configuration and a closed configuration in order to switch the rectifier between a first configuration, in which it interrupts the current flow towards the output side and charges the first inductor, and a second configuration, in which it allows the transfer of current to the load and discharges the first inductor. A second power inductor is electrically connected in series to a second terminal of the power supply side.

Abstract: A method for protecting an on-board charging device includes the steps of detecting the phase and neutral voltages coming from the grid, detecting a current signal representing a compensation current generated by a compensation circuit, combining the phase voltages together so as to obtain a homopolar voltage signal, squaring the current signal and the homopolar voltage signal so as to obtain a first square current wave and a second square voltage wave, combining the first and second square waves together so as to generate an output signal having a first logic level when the first and second square waves are in phase and a second logic level when the first and second square waves are out of phase, generating a voltage increasing in proportion to the duration of each section of the output signal having the first value, comparing the voltage value with a limit value and generating an alarm signal when the voltage level exceeds the limit value.

Abstract: A method for measuring an earth resistance in a battery charging system, including the steps of injecting a measuring signal in alternating current between a first, neutral node and a second, earth node, detecting a voltage signal representing an electrical potential difference between the first and the second node, processing the voltage signal so as to extract a first signal having a frequency equal to that of the measuring signal and a phase correlated thereto, and calculating an earth resistance value as a function of a ratio between the measuring signal and a reference value of said first signal.

Abstract: It is disclosed a housing for electronic power devices for driving an electric motor of an electric or hybrid vehicle. The housing comprises a perimeter element adapted to house a support for electronic power devices. The perimeter element comprises an electrical connector adapted to receive a direct voltage generated by a battery pack, comprises a metal conductor adapted to carry an alternating voltage for driving the electric motor, comprises a magnetic flux concentrator adapted to generate a magnetic field at least partially crossing the metal conductor. The concentrator surrounds the metal conductor and comprises an air opening adapted to house a Hall sensor to measure the current flowing across the metal conductor.

Abstract: A connecting member for an inverter includes a support made of electrically insulating material, a first and a second conductive tracks anchored to said support. The support further includes one or more housings designed to contain a plurality of capacitors, provided with an opening for connection with said first and second conductive track.

Abstract: Protecting system for occupants of heavy or medium—heavy transport means composed of a frame able to constrain an airbag to a heavy transport means.