Richardeau
Charles Richardeau, Mortagne-Sur-Sevre FR
Patent application number | Description | Published |
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20110032737 | Power Factor Correction Circuit for Three-Phase Power Supply - 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. | 02-10-2011 |
20110109417 | POWER TRANSFORMER FOR RADIOFREQUENCY SIGNALS - The present invention relates to a power transformer for radiofrequency signals. The transformer is made in a low-cost, multilayer printed circuit board comprising at least the following stacked layers in succession: a first conductive layer, a first layer of dielectric substrate, a second conductive layer, a second layer of dielectric substrate, and a third conductive layer, the primary winding being formed by a turn printed in the second conductive layer, the secondary winding being formed by a first turn printed in the first conductive layer, this first turn being connected to a second turn printed in the third conductive layer, the turns of the secondary winding being placed opposite to the turn of the primary winding, the board being tightly held above and below by two plates of ferromagnetic material. Capacitive components connected between winding(s) on the one hand and ground on the other hand can improve the behavior of the proposed transformer. The invention applies notably to the production of HF transmitting radioelectric terminals. | 05-12-2011 |
Frederic Richardeau, Flourens FR
Patent application number | Description | Published |
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20080218150 | Method and Device for Supply to a Magnetic Coupler - The invention relates to a method for supply to a magnetic coupler comprising several pairs of windings, each pair being formed from a first and a second adjacent paired winding, magnetically coupled to each other by means of a core of magnetic material. The method further consists of supplying (in | 09-11-2008 |
20110002148 | POWER RECTIFIER CIRCUIT AND SYSTEMS, ASSOCIATED METHOD, AND AIRCRAFT COMPRISING SUCH A CIRCUIT OR SYSTEMS - A power rectifying circuit for an electric current signal supplied by an alternating power source, which includes: two separate switching assemblies adapted to be connected to a power terminal of the source, wherein at least one switching assembly includes a plurality of boost cells in cascade, each boost cell including a diode, a switch mechanism and a capacitor, the capacitors of the two terminal boost cells of the switching assemblies having one terminal in common. The circuit may include two assemblies of boost cells, and can be used in electric systems onboard aircrafts. | 01-06-2011 |
20130194840 | Redundancy Structures for Static Converters - The invention relates to a static converter connected between an electrical voltage source ( | 08-01-2013 |
20140299916 | MONOLITHIC CELL FOR AN INTEGRATED CIRCUIT AND ESPECIALLY A MONOLITHIC SWITCHING CELL - A cell includes at least two semiconductor structures of the same nature, these two structures both employing voltages and currents that are unidirectional, each structure having an anode ( | 10-09-2014 |
Frédéric Richardeau, Flourens FR
Patent application number | Description | Published |
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20130194840 | Redundancy Structures for Static Converters - The invention relates to a static converter connected between an electrical voltage source ( | 08-01-2013 |