Abstract: A power supply architecture for powering aircraft actuators includes a single-phase on-board electricity network is connected by a power supply circuit to an electric motor of an actuator, supercapacitor associated with an electronic circuit for managing the operation of the supercapacitor, and a downstream converter device for connecting to the motor. The power supply circuit includes in succession an upstream converter device for converting the voltage of the on-board electricity network into a voltage adapted to the power supply circuit downstream therefrom. The downstream converter device is reversible, so as to convert voltage both when the motor is operating in motor mode and also when the motor is operating in generator mode. The downstream converter device is arranged selectively to have a voltage-decreasing function and to have a voltage-increasing function regardless of the mode of operation of the motor.

Abstract: An electrical supply holding circuit includes a primary stage and a secondary stage. The primary stage includes a voltage connector connected to a supply network, and a primary winding connected to a voltage converter. The secondary stage includes a secondary winding facing the primary winding, the primary and secondary windings forming two coupled inductances, and a voltage controller to which the secondary winding is connected, the voltage controller being connected to a load and controlling a voltage across the terminals of the load. Directions of the currents flowing through the primary and secondary windings are the reverse of one another, and the voltage converter stops the supply to the primary winding when the supply voltage is less than a threshold voltage and resumes the supply to the primary winding when the supply voltage is greater than a threshold voltage.

Abstract: An electrical conversion system includes an inverter arranged according to a multilevel type topology with k arms and a command device for cut-off against an electrical overload, connected to a set of first intermediate lines to measure a first intermediate continuous voltage. The cut-off command device is configured to determine a fault by detecting if the first measured intermediate continuous voltage is outside of a nominal voltage variation range [Vmax1, Vmin1] of the first intermediate voltage and to transmit a generalised opening command signal for an opening of the electronic commutation switches of each arm when the fault is determined.

Abstract: An electrical supply holding circuit includes a primary stage and a secondary stage. The primary stage includes a voltage connector connected to a supply network, and a primary winding connected to a voltage converter. The secondary stage includes a secondary winding facing the primary winding, the primary and secondary windings forming two coupled inductances, and a voltage controller to which the secondary winding is connected, the voltage controller being connected to a load and controlling a voltage across the terminals of the load. Directions of the currents flowing through the primary and secondary windings are the reverse of one another, and the voltage converter stops the supply to the primary winding when the supply voltage is less than a threshold voltage and resumes the supply to the primary winding when the supply voltage is greater than a threshold voltage.

Abstract: To this end, the invention relates to a method for controlling a switched electronic circuit connecting an electrical voltage source u to a load R and forming a system having an output y and a plurality of operating modes i, at least some of which thus can be activated by following a switching rule o. According to the invention, the following steps are provided: —measuring state variables x of the system having equilibrium values xr; —introducing at least one parameter p into the system, representing a measuring error of an electrical unknown of the operation of the circuit; —estimating the parameter from a state monitor and applying a Lyapunov function thereto; —deducing therefrom the equilibrium values of the system in order to obtain the control rule.

Abstract: To this end, the invention relates to a method for controlling a switched electronic circuit connecting an electrical voltage source u to a load R and forming a system having an output y and a plurality of operating modes i, at least some of which thus can be activated by following a switching rule o. According to the invention, the following steps are provided:—measuring state variables x of the system having equilibrium values xr;—introducing at least one parameter p into the system, representing a measuring error of an electrical unknown of the operation of the circuit;—estimating the parameter from a state monitor and applying a Lyapunov function thereto;—deducing therefrom the equilibrium values of the system in order to obtain the control rule.

Abstract: In order to reduce the cost of a switch-mode converter delivering a continuous voltage to the terminals of a load (Z), the present invention proposes a circuit having two windings (Lp, Ls) and a single magnetic core.

Abstract: A method for controlling a DC-DC converter including an energy accumulation element, an energy storage element and a switching element, said control method including the following steps implemented by a control unit: a step of generating a control signal for the switching element with a duty cycle ? that is a function of information relating to the output electrical conditions of said converter; a step of controlling said switching element by means of said control signal; a step of compensating said control signal for a continuous conduction mode; a step of compensating said control signal for a discontinuous conduction mode; and a step of estimating the current operating mode of said converter in order to control the implementation either of the compensation step or of the compensation step as a function of the estimated current operating mode. The invention further relates to a DC-DC converter for implementing said control method.

Abstract: A method for controlling a DC-DC converter including an energy accumulation element, an energy storage element and a switching element, said control method including the following steps implemented by a control unit: a step of generating a control signal for the switching element with a duty cycle ? that is a function of information relating to the output electrical conditions of said converter; a step of controlling said switching element by means of said control signal; a step of compensating said control signal for a continuous conduction mode; a step of compensating said control signal for a discontinuous conduction mode; and a step of estimating the current operating mode of said converter in order to control the implementation either of the compensation step or of the compensation step as a function of the estimated current operating mode. The invention further relates to a DC-DC converter for implementing said control method.

Abstract: In order to reduce the cost of a switch-mode converter delivering a continuous voltage to the terminals of a load (Z), the present invention proposes a circuit having two windings (Lp, Ls) and a single magnetic core.