Abstract: The invention relates to a module for controlling the power supply (10) of an electric motor which comprises a printed circuit board (12) bored with a plurality of through-holes (30), respectively associated with an electrical connection pad (32) supported by said plate adjacent to each of said through-holes. The electrical connection pads (32) are arranged on a surface (26) of the printed circuit board (12) so that a virtual circle can be defined passing substantially through each of the connection pads, said pads being concentrated on a portion of the printed circuit board so as to form an arc of circle which is shorter than half the circumference of said virtual circle.

Abstract: A method of control of an electric motor involves generation of an electrical control signal for the electric motor, the signal having a series of sequences of pulses, each pulse being defined by a width and a period. The ratio of width to period defines a mean electrical power provided to the electric motor by this pulse. The period of a pulse situated at an arbitrary position of a sequence of pulses is equal to the period of the pulse situated at that position of any other sequence of pulses of the series, and the period of each pulse is fixed in a pseudo random manner, such that the inverse of the fixed period lies above the audible acoustic spectrum. The number of pulses of each sequence is fixed so that the inverse of the sum of the periods of all the pulses lies below the audible acoustic spectrum.

Abstract: The invention relates to a device for controlling the electrical power supply of a circuit for a vehicle, said vehicle comprising: an electrical battery (2); an electrical energy storage element (C1), one terminal of which is connected to the first terminal (VBAT) of the battery and the other terminal of which is connected to an electrical earth; a first circuit (5), capable of consuming electricity coming from the electrical battery (2), and having first and second terminals respectively connected to the first and second terminals (?VBAT, VBAT) of the battery (2); and electrical supply management means (QI) configured to allow or prevent the passage of electrical current between said electrical energy storage element (C1) and said first circuit (5).

Abstract: The invention relates to a module for controlling the power supply (10) of an electric motor which comprises a printed circuit board (12) bored with a plurality of through-holes (30), respectively associated with an electrical connection pad (32) supported by said plate adjacent to each of said through-holes. The electrical connection pads (32) are arranged on a surface (26) of the printed circuit board (12) so that a virtual circle can be defined passing substantially through each of the connection pads, said pads being concentrated on a portion of the printed circuit board so as to form an arc of circle which is shorter than half the circumference of said virtual circle.

Abstract: The invention relates particularly to a method for controlling an electric motor, comprising generating, by means of an electronic control circuit, an electrical signal for controlling the electric motor. The aim of the signal generated is to reduce the electromagnetic parasites in AM radio bands as well as in the band [0 k Hz; 125 k Hz] (used particularly by RFID chips associated with certain sensors), without generating acoustic parasites in the audible frequency bands.

Abstract: The invention relates to a device for controlling the electrical power supply of a circuit for a vehicle, said vehicle comprising: an electrical battery (2); an electrical energy storage element (C1), one terminal of which is connected to the first terminal (VBAT) of the battery and the other terminal of which is connected to an electrical earth; a first circuit (5), capable of consuming electricity coming from the electrical battery (2), and having first and second terminals respectively connected to the first and second terminals (?VBAT, VBAT) of the battery (2); and electrical supply management means (QI) configured to allow or prevent the passage of electrical current between said electrical energy storage element (C1) and said first circuit (5).

Abstract: An electrical filter (10) is suitable for having a greater effectiveness for reducing the common mode current that an electrical device (30) can produce in the direction of a voltage source (20) which is used to supply this device. Such a filter can be useful for meeting the electromagnetic compatibility requirements set by the BMW Group Standard GS 95002-2 “Electromagnetic Compatibility (EMC)—requirements and tests on components up to 60 V nominal voltage”.

Abstract: The invention relates to a power supply system of an electric motor (1) comprising a power circuit (3), the input terminals of which are connected to a DC voltage source, and an electronic circuit (4) for controlling the electric motor (1) based on a control signal representative of the set speed of the motor. According to the invention, the system comprises a means (6) capable of reducing the DC voltage value received by the power circuit (3) during the starting of the electric motor (1) and/or during operating phases in which the set speed of the electric motor (1) is below a threshold speed.

Abstract: An electrical filter (10) is suitable for having a greater effectiveness for reducing the common mode current that an electrical device (30) can produce in the direction of a voltage source (20) which is used to supply this device. Such a filter can be useful for meeting the electromagnetic compatibility requirements set by the BMW Group Standard GS 95002-2 “Electromagnetic Compatibility (EMC)—requirements and tests on components up to 60 V nominal voltage”.

Abstract: The invention relates to a power supply system of an electric motor (1) comprising a power circuit (3), the input terminals of which are connected to a DC voltage source, and an electronic circuit (4) for controlling the electric motor (1) based on a control signal representative of the set speed of the motor. According to the invention, the system comprises a means (6) capable of reducing the DC voltage value received by the power circuit (3) during the starting of the electric motor (1) and/or during operating phases in which the set speed of the electric motor (1) is below a threshold speed.

Abstract: The invention relates to a cooling device for a printed circuit board, comprising a printed circuit board equipped with at least one face or first face and at least one heat sink (9) brazed to said at least one face of the printed circuit, in which said at least one heat sink (9) can be disposed in a flow of coolant. The invention is suitable for motor vehicles.

Abstract: The invention relates to a ventilation device (1) for a ventilation unit of a motor vehicle passenger compartment, comprising: an impeller (4) that generates an air flow (11, 12) and can be driven by an electric motor; and a printed circuit board (15) having secured thereto at least one electronic component (19) that can release calories. The printed circuit board (15) comprises at least one through-hole (18) provided in a part (21) of the printed circuit board (15). The ventilation device (1) is configured such that the air flow (11, 12) generated by the impeller (4) moves along said part (21) of the printed circuit board (15).

Abstract: The invention relates to a system for controlling the speed of a motor (1) of an electric fan unit comprising a field-effect transistor (3) that controls the motor (1) using pulse-width modulation, the field-effect transistor (3) being connected to a circuit (5) comprising a voltage source (7) and a resistive element (9) in series, the circuit (5) is connected between the gate (G) of the field-effect transistor (3) and a second source (S2) that is connected to a first source (S1) of the field-effect transistor (3), via an inductor (11) in order to allow a reduction in the slope of the current as the field-effect transistor (3) switches.