Abstract: A control method of an electric machine is described, including a first step of detecting the angular position of a rotor of the electric machine; a second step of detecting the values of the alternate current next to at least two phases of the input current to the electric machine; a third step of detecting the values of voltage and direct current supplied as input to the inverter by the electric supply means; a fourth step of estimating the torque supplied by the electric machine performed by processing data detected in the first and second step; a fifth step of computing the torque supplied by the electric machine performed by processing data detected in the third and first step; a sixth step of comparing the value of the computed torque and the value of the estimated torque; a control system and a motor comprising such system are further described.

Abstract: A control system (200) of an electric machine (80) includes a position sensor (51) configured to detect the angular position of a rotor of the electric machine (80); at least two alternate current sensors (52), each one of the alternate current sensors (52) being configured to detect the value of the alternate current (ia, ib, ic) to an input phase to the electric machine (80), and being electrically connected to a phase of the supply circuit of the electric machine (80), the electric machine (80) being electrically connected to an inverter (60) configured to transform a continuous voltage supplied by the electric supply means into an alternate voltage for a power supply of the electric machine (80); and a measuring circuit (100) of a voltage of an electric machine.

Abstract: A measuring circuit (100) is described, for the voltage of an electric machine comprising a first operational amplifier (20) having its non-inverting input (5) connected to a non-inverting input (10) of at least one second operational amplifier (30), and its output (7) feedback connected, through a resistance (R5), to the inverting input (6), the inverting input (6) of the first operational amplifier (20) being further connected through a resistance (R6) to a first phase (C) of the input current to an electric machine, the output (7) of the first operational amplifier (20) being connected, through a resistance (R8), to the inverting input (2) of a third operational amplifier (40) which has its non-inverting input (3) connected to a reference voltage (VREF), the output (7) of the first operational amplifier (20) being further connected to a first output (VC) of the circuit, which is at a voltage value equal to the voltage of a first phase of the electric machine to be measured, said third operational amplifier

Abstract: A measuring circuit (100) is described, for the voltage of an electric machine comprising a first operational amplifier (20), at least one second operational amplifier (30), a third operational amplifier (40); a system and a process for estimating the temperature of the magnets of electric machines using such circuit (100) are further described.

Abstract: A control method of an electric machine is described, including a first step of detecting the angular position of a rotor of the electric machine; a second step of detecting the values of the alternate current next to at least two phases of the input current to the electric machine; a third step of detecting the values of voltage and direct current supplied as input to the inverter by the electric supply means; a fourth step of estimating the torque supplied by the electric machine performed by processing data detected in the first and second step; a fifth step of computing the torque supplied by the electric machine performed by processing data detected in the third and first step; a sixth step of comparing the value of the computed torque and the value of the estimated torque; a control system and a motor comprising such system are further described.

Abstract: The present invention is a power module for a system for converting a direct electrical power into a three-phase electrical power. The power module according to the invention comprises two inputs (E1, E2), an output (S), two switches (1), two diodes (D), and two capacitors (Cs, Cov) and to a conversion system comprising such a power module.

Abstract: The present invention is a system for converting a direct electrical power into alternating electrical power. The conversion system comprises an assembly on a printed circuit board (14) of power modules (7), an electrical energy recovery module (5?) and a coil and the present invention also relates to a method for assembling the conversion system, and a motor system comprising the conversion system.

Abstract: The present invention relates to a DC/AC converter, comprising switching arms, a voltage and current variation modulation circuit, and an electrical energy harvester module. The energy recovery module is linked to the switching arms and to the modulation circuit.

Abstract: The present invention is a power module for a system for converting a direct electrical power into a three-phase electrical power. The power module according to the invention comprises two inputs (E1, E2), an output (S), two switches (1), two diodes (D), and two capacitors (Cs, Cov) and to a conversion system comprising such a power module.

Abstract: The present invention relates to a system for converting a direct electrical power into alternating electrical power. The conversion system comprises an assembly on a printed circuit board (14) of several power modules (7), an electrical energy harvesting module and a coil. The present invention relates also to a method for assembling such a conversion system, and a motor system comprising such a conversion system.

Abstract: The present invention relates to a DC/AC converter, comprising switching arms, a voltage and current variation modulation circuit, and an electrical energy recovery module. The energy recovery module is linked to the switching arms and to the modulation circuit.

Abstract: The present invention is an electronic device (10) comprising a printed circuit board (12) bearing at least one component comprising at least one of a power component (14) and at least one power conductor (18). The printed circuit board comprises an alternating succession of insulating (22) and conductive (24) layers, wells (30, 30?) bearing an internal electrically and thermally conductive coating (32) which passes through the thickness of the board, and a cooling device (34) for the board. The interior of the wells are filled with a thermally conductive material (44) to produce a thermal bridge between the component and the cooling device (34).