Patent application number | Description | Published |
20090207542 | VOLTAGE SURGE PROTECTION DEVICE AND ELECTRONIC CIRCUIT COMPRISING ONE SUCH A DEVICE - The voltage surge protection device comprises at least one input designed to be connected to an electric power supply system, at least one output designed to be connected to an electric circuit to be protected, and voltage surge limiting means connected between the inputs and outputs to protect said electric circuit against voltage surges able to be applied on the inputs. The voltage surge limiting means comprise bidirectional series electronic limiting means comprising at least two inputs/outputs connected in series with at least one of said inputs, and which are turned on when a low voltage drop occurs when a circulating current is lower than a current limiting value, and limiting said circulating current by increasing a voltage drop between said inputs/outputs. | 08-20-2009 |
20090212726 | DEVICE FOR PROTECTING A SPEED CONTROLLER AGAINST OVERCURRENT - The invention relates to a speed controller comprising:
| 08-27-2009 |
20090213513 | SPEED CONTROLLER INCLUDING A DEVICE FOR PROTECTION AGAINST OVERCURRENTS AND OVERVOLTAGES - The invention relates to a speed controller comprising:
| 08-27-2009 |
20110057587 | ENERGY-RECOVERY DEVICE IN A VARIABLE SPEED DRIVE - The invention relates to a variable speed drive comprising a direct-current power bus having a positive line ( | 03-10-2011 |
20110199801 | ENERGY RECOVERY DEVICE IN A VARIABLE-FREQUENCY DRIVE - A variable-frequency drive that includes a DC power supply bus with a positive line and a negative line, and an inverter module powered by the DC bus for supplying a variable voltage to an electric load. The inverter includes a first DC/DC converter including output terminals connected in series on the positive line of the DC bus, a second DC/DC converter including input terminals connected between the positive line and the negative line of the DC bus, a filtering capacitor connected in parallel to the input terminals of the first converter and to the first output terminals of the second converter, and an electric power storage module connected in parallel to the second output terminals of the second converter. | 08-18-2011 |
20150084413 | METHOD AND SYSTEM FOR SUPPLYING ELECTRIC POWER TO A HYBRID MOTOR VEHICLE WITH DUAL ELECTRICAL ENERGY STORAGE DEVICES - Method used in a vehicle provided with an electrical power system ( | 03-26-2015 |
20150244243 | CONNECTION DEVICE FOR A ROTARY ELECTRIC MACHINE AND USE OF SUCH A CONNECTION DEVICE IN AN ELECTRIC SUPERCHARGER - A connection device is provided for a rotary electric machine of the type supplied with power by a plurality of first pins arranged on a bearing of an axis of the machine at predetermined angular intervals around the axis at a first predetermined distance. The connection device includes a plurality of second pins that are arranged around the axis at a second predetermined distance, which is greater than the first predetermined distance, and that are electrically connected to a plurality of first terminals able to be connected to the first pins. The connection device also includes a main part made of plastics material with a plurality of overmoulded metal bars connecting the second pins and the first terminals. | 08-27-2015 |
20150283913 | ELECTRICITY SUPPLY SYSTEM HAVING DOUBLE POWER-STORAGE DEVICES OF A HYBRID OR ELECTRIC MOTOR VEHICLE - An electricity supply system having double power-storage devices which is suitable for implementation in an electric or hybrid motor vehicle. The supply system is intended for being connected to a power network of the vehicle. The supply system is of the type that includes a first power-storage device, having a first specific energy, a first specific power and a first operating voltage (Ue), and a second power-storage device, having a second specific energy that is lower than the first specific energy, a second specific power that is higher than the first specific power and a second operating voltage (Up) that is higher than the first operating voltage (Ue). The first and second power-storage devices are electrically coupled by a bidirectional DC-DC converter controlled in accordance with the operating states of the vehicle. The DC-DC converter includes a floating capacitor connected in series between the first and second power-storage devices. | 10-08-2015 |