Abstract: A power-factor correction circuit for a three-phase power supply is provided. The correction circuit includes a filtering unit at the input receiving the three phases of the current, at least one inductor per phase placed downstream of the filtering unit, a rectifying bridge powering a current-chopping stage. The filtering unit includes a differential-mode filtering cell including at least one inductive circuit formed of a single magnetic material in a double E, each leg of the E being surrounded by a winding.

Abstract: A power-factor correction circuit for a three-phase power supply is provided. The correction circuit comprises a filtering unit at the input receiving the three phases of the current, at least one inductor per phase placed downstream of the filtering unit, a rectifying bridge powering a current-chopping stage, wherein the filtering unit comprises a differential-mode filtering cell comprising at least one inductive circuit formed of a single magnetic material in a double E, each leg of the E being surrounded by a winding. The invention applies notably to the field of power electronics, in particular to the production of three-phase power supply units.

Abstract: In a method and device for the encoding/decoding of power distribution at outputs of a system, a distribution encoder includes an element that receives a useful input signal and a piece of distribution information, and that superposes the piece of distribution information received on the input signal. The piece of information is used for the subsequent distribution of the total power of the input signal at an output or outputs of the system. A distribution decoder includes one or more inputs that receive an encoded signal or an encoded signal divided into several signals including the useful signal and the piece of distribution information. Further, one or more outputs are connected to the outputs of the system to which the useful signal is transmitted by distributing the total power received according to the piece of distribution information. The method and device enable, for example, fast, low-power switching of the outputs of a high-power system and the programming of a system with variable power outputs.

Abstract: In a method and device for the encoding/decoding of the power distribution at the outputs of a system, the distribution encoder comprises an element that receives a signal s(t) and a piece of distribution information i(t), and that superposes said piece of distribution information i(t) received on said signal s(t) received. The piece of information i(t) is used for the subsequent distribution of the total power Ps of said signal s(t) at said output or outputs {S&Ggr;} of a system &Ggr;. The distribution decoder comprises one or more inputs on which there is received an encoded signal c(t) or an encoded signal divided into several signal (cj(t))j&egr;[1,2N] comprising the useful signal s(t) and the piece of distribution information i(t). It also comprises one or more outputs connected to the outputs {S&Ggr;} of said system &Ggr; to which said signal s(t) is transmitted by distributing the total power received Ps according to said piece of distribution information i(t).