Abstract: A voltage converter that receives at input a primary DC voltage that is variable over a wide voltage range and that supplies at output a regulated first secondary DC voltage and an unregulated second secondary DC voltage, including a buck converter with inductors coupled to two outputs, it also includes a boost converter arranged upstream of the buck converter and able to boost the primary voltage when activated, and a charge pump module arranged between the second secondary voltage and the first secondary voltage and able to balance the charges when activated, the boost converter and the charge pump module being activated simultaneously.

Abstract: Disclosed is a method for regulating the duty cycle of a controlled current signal of a conversion module of a voltage converter including a step of measuring, by the microcontroller, the duty cycle of the envelope of the controlled current signal, and when the value of the duty cycle is below a predetermined threshold, a step of controlling, by the microcontroller, the current control module to decrease the amplitude of the control signal and that the duty cycle of the envelope of the controlled current signal thus tends toward a predetermined threshold, or when the value of the duty cycle is higher than the predetermined threshold, a step of controlling, by the microcontroller, the current control module so the current control module increases the amplitude of the controlled current signal and that the duty cycle of the envelope of the controlled current signal thus tends toward the predetermined threshold.

Abstract: Disclosed is a method for regulating the output voltage of a DC-to-DC voltage converter of a motor vehicle engine control computer. The method includes a step of the microcontroller simultaneously controlling a control module, so that the control module drives at least one injector of the vehicle engine, and a converter, so that the converter generates its own output voltage by setting the strength of the drive current to its maximum in what is called a “forced” mode corresponding to a step.

Abstract: A voltage converter that receives at input a primary DC voltage that is variable over a wide voltage range and that supplies at output a regulated first secondary DC voltage and an unregulated second secondary DC voltage, including a buck converter with inductors coupled to two outputs, it also includes a boost converter arranged upstream of the buck converter and able to boost the primary voltage when activated, and a charge pump module arranged between the second secondary voltage and the first secondary voltage and able to balance the charges when activated, the boost converter and the charge pump module being activated simultaneously.

Abstract: Disclosed is a method for regulating the duty cycle of a controlled current signal of a conversion module of a voltage converter including a step of measuring, by the microcontroller, the duty cycle of the envelope of the controlled current signal, and when the value of the duty cycle is below a predetermined threshold, a step of controlling, by the microcontroller, the current control module to decrease the amplitude of the control signal and that the duty cycle of the envelope of the controlled current signal thus tends toward a predetermined threshold, or when the value of the duty cycle is higher than the predetermined threshold, a step of controlling, by the microcontroller, the current control module so the current control module increases the amplitude of the controlled current signal and that the duty cycle of the envelope of the controlled current signal thus tends toward the predetermined threshold.

Abstract: Disclosed is a method for regulating the output voltage of a DC-to-DC voltage converter of a motor vehicle engine control computer. The method includes a step of the microcontroller simultaneously controlling a control module, so that the control module drives at least one injector of the vehicle engine, and a converter, so that the converter generates its own output voltage by setting the strength of the drive current to its maximum in what is called a “forced” mode corresponding to a step.

Abstract: A method for controlling a voltage step-down converter (20) including an inductive component (21), one terminal of which is connected to an electrical source (50) via a regulating switch (24), while its other terminal is connected to a capacitive component (22), the output of the voltage step-down converter being regulated by alternating connection intervals, during which the regulating switch is in an on state, with disconnection intervals, during which the regulating switch is in an off state, the regulating switch being switched from the on state to the off state when the value of the output voltage reaches a disconnection threshold. The disconnection threshold has a variable value which decreases progressively, during each connection interval, from a maximum value of the disconnection threshold.

Abstract: A device and switching method for a circuit for generating an output voltage (Vout) via a control signal (CTRL) with two pulse-width modulated states are described. The control signal (CTRL) frequency (Fq) is measured. In order to generate the control signal (CTRL), either a first hysteresis comparator (31) or a second hysteresis comparator (32) is enabled depending on the control signal (CTRL) measured frequency (Fq). Advantageously, the voltage thresholds of the hysteresis comparators and at least one frequency threshold can be chosen in such a manner as to avoid the control signal (CTRL) frequency (Fq) entering into forbidden frequency bands.

Abstract: A method for controlling a voltage step-down converter (20) including an inductive component (21), one terminal of which is connected to an electrical source (50) via a regulating switch (24), while its other terminal is connected to a capacitive component (22), the output of the voltage step-down converter being regulated by alternating connection intervals, during which the regulating switch is in an on state, with disconnection intervals, during which the regulating switch is in an off state, the regulating switch being switched from the on state to the off state when the value of the output voltage reaches a disconnection threshold. The disconnection threshold has a variable value which decreases progressively, during each connection interval, from a maximum value of the disconnection threshold.

Abstract: A device and switching method for a circuit for generating an output voltage (Vout) via a control signal (CTRL) with two pulse-width modulated states are described. The control signal (CTRL) frequency (Fq) is measured. In order to generate the control signal (CTRL), either a first hysteresis comparator (31) or a second hysteresis comparator (32) is enabled depending on the control signal (CTRL) measured frequency (Fq). Advantageously, the voltage thresholds of the hysteresis comparators and at least one frequency threshold can be chosen in such a manner as to avoid the control signal (CTRL) frequency (Fq) entering into forbidden frequency bands.

Abstract: A method for managing the power supply voltage (Vs) of an electronic computer of a motor vehicle, the electronic computer including: a microcontroller, a power supply circuit powered by a battery and supplying the microcontroller with a power supply voltage regulated by a regulator having a nominal regulation frequency (FREF) set by a clock, at least one electronic component connected to the microcontroller and the power supply circuit which supplies it with a regulated power supply voltage, a element of communication between the microcontroller and the power supply circuit, the method includes: identification of an imminent modification of the current demand, sending an instruction to increase the FREF, increasing its FREF to a higher regulation frequency (FACCEL), for a predetermined time period (T) measured by the internal clock, when T has elapsed, lowering the higher regulation frequency (FACCEL) to its nominal regulation frequency (FREF).

Abstract: A method for controlling a motorization device for an hybrid vehicle includes using alternatively two modes for connecting the wheels to the electric motor and to the internal combustion engine; a parallel mode in which the internal combustion engine drives the wheels directly, without electrical assistance; a series mode in which the electrical motor drives the wheels, with an intermittent use of the internal combustion engine only at its optimal operating point, for the purpose of recharging the battery regularly, the switch from one mode to the other being determined by a step for comparing between the consumption of the internal combustion engine in parallel mode, and the optimal consumption of the internal combustion engine to which are added the losses due to the activation of the electrical chain of the series mode.