Patent application number | Description | Published |
20100039086 | VOLTAGE CONVERTER - A voltage converter connectable to a power source (PS) and a load (LD) provides a regulated output voltage (Vout) from a voltage (Vin) power source by switchable current paths including an inductive element (L). The voltage converter includes a plurality of switching elements for switching the current paths of the voltage converter as a forward-phase current path when the input voltage corresponds to the output voltage, as an up-phase current path when the input voltage is lower than the output voltage, and as a down-phase current path when the input voltage is higher than the output voltage. A central controller controls a switching state of the plurality of switching elements, a current sensing unit including a comparator for sensing a current flowing through at least one of the switching elements, and a plurality of processing units for processing the current sensing. | 02-18-2010 |
20110001460 | LOWER POWER CONTROLLER FOR DC TO DC CONVERTERS - The present invention relates to a DC to DC converter system ( | 01-06-2011 |
20110031816 | PHOTOVOLTAIC UNIT, A DC-DC CONVERTER THEREFOR, AND A METHOD OF OPERATING THE SAME - A photovoltaic unit is disclosed comprising a plurality of sub-units connected in series, each sub-unit having a main input and a main output, which main output is connected to the respective main input of a neighbouring sub-unit, each sub-unit further comprising a segment comprising one or more series-connected solar cells, and a supplementary power unit, wherein the supplementary power unit is configured to at least one of receive power from or supply power to the neighbouring sub-unit. The supplementary power unit is preferably a DC-DC converter, and arranged to exchange energy between neighbouring segments, without requiring a high-voltage connection across the complete string (of more than 2 segments). The converter may be inductive or capacitive. | 02-10-2011 |
20110115297 | PHOTOVOLTAIC ASSEMBLY AND METHOD OF OPERATING A PHOTOVOLTAIC ASSEMBLY - A photovoltaic assembly is disclosed which comprises a string formed from a plurality of series-connected photovoltaic generators, and a hierarchical structure of power-exchange units, which each exchange power between neighbouring photovoltaic generators or groups of photovoltaic generators. | 05-19-2011 |
20120062031 | CONTROL SYSTEM FOR MULTI OUTPUT DCDC CONVERTER - A multi-output DC to DC converter can have complex control requirements in CCM mode because of the differing load requirements of the outputs. A multi-output DC to DC converter having a single coil or inductor and a freewheel switch is described. A controller measures the duration of the freewheel phase. The controller increases the current supplied to the DC to DC converter in the following duty-cycle if the duration is less than a first value, and decreases the current supplied to the inductor in the following duty-cycle if the duration is greater than a second value. | 03-15-2012 |
20140300410 | CASCODED SEMICONDUCTOR DEVICES - The invention provides a cascode transistor circuit with a depletion mode transistor and a switching device. A gate bias circuit is connected between the gate of the depletion mode transistor and the low power line. The gate bias circuit is adapted to compensate the forward voltage of a diode function of the switching device. The depletion mode transistor and the gate bias circuit are formed as part of an integrated circuit. | 10-09-2014 |