Lorand
Lorand Cesnak, Weikendorf AT
Patent application number | Description | Published |
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20090212750 | METHOD FOR OPERATING AN INVERTER HAVING A STEP-UP DEVICE CONNECTED UPSTREAM - The invention relates to a method for operating an inverter comprising a step-up device which is upstream-connected by means of an intermediate circuit and is connectable to a direct-current source with a variable reference sampling current wherein said inverter and the step-up device are provided with an efficiency optimizing working area, respectively. When the variable reference sampling current is raised and the step-up device approaches a pulse duty factor value, the intermediate circuit voltage is reduced and the variable reference sampling current is stabilized, said intermediate circuit voltage is re-raised. When the direct-current source is in a permanent operational state, the inverter and the step-up device operate in the efficiency optimizing working area thereof, respectively. | 08-27-2009 |
20150028841 | DC/DC CONVERTER - A DC/DC converter has an active energy store, such as an inductance, which can be periodically charged and discharged by one or more semiconductor switches, such as transistors. To avoid voltage overshoot, an RCD element is provided for at least one semiconductor switch, wherein a capacitor and a diode of the RCD element are connected in series, and a resistor of the RCD element can be connected either in parallel with the diode or disconnected from the diode by a switch. The diode of the RCD element is arranged so as to be blocking in the conducting direction of the semiconductor switch. | 01-29-2015 |
Lorand Cesnak, Wien AT
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20090213622 | Powering Unit with Full Bridge and Wide Adjusting Range Circuit - There is described a powering unit comprising at least one transformer, at least one full bridge circuit via which a primary winding of the transformer is connected to a direct current voltage input, a secondary winding for triggering an output circuit with an output direct current voltage via a bridge-type rectifier circuit as well as an output choke coil and an output capacitor, and a discharge circuit consisting a diode, for a capacitor and of a resistor for reducing the secondary-side peak voltages. The powering unit has another secondary winding, another bridge-type rectifier circuit and another discharge circuit operable to trigger the output circuit with part of the output direct current voltage via the output choke coil and the output capacitor. Thus, there are fewer losses in the resistors and the performance is enhanced. | 08-27-2009 |
Lorand De Ouvenou, Bernhardswald DE
Patent application number | Description | Published |
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20090200865 | DEVICE FOR GENERATING ELECTRICAL ENERGY IN A MOTOR VEHICLE AND A MOTOR VEHICLE WITH SUCH A DEVICE - In a device for generating electrical energy in a motor vehicle and a motor vehicle with such a device, a microturbine | 08-13-2009 |
20090303836 | DEVICE AND METHOD FOR SCARING OFF ANIMALS FROM A PARKED MOTOR VEHICLE - In a device and a method for scaring off animals, in particular martins, from a parked motor vehicle, the piezoinjectors ( | 12-10-2009 |
Lorand Romvari, Budapest HU
Patent application number | Description | Published |
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20150377978 | SECONDARY BATTERY STATE DETECTING DEVICE AND SECONDARY BATTERY STATE DETECTING METHOD - To provide a secondary battery state detecting device that decreases the deterioration in capacity of the secondary battery and is low in arithmetic cost. | 12-31-2015 |