|XANDEX, INC. Patent applications|
|Patent application number||Title||Published|
|20110273155||Hybrid Rectifier - A hybrid voltage rectifier enables a switch mode DC-DC power converter to safely power an external dynamic load by way of a substantially lossless conductive coupling between an output filter of the converter and the load. The rectifier is controlled so as to permit net average current through an inductor of the output filter to be approximately equal to, but not less than, zero by permitting very low loss conduction in the first quadrant and, selectively, cycle by cycle, in the third quadrant during load operation. The converter has a first switch, an output filter, a second switch, and a controller. The output filter is conductively coupled with the first switch, and has an inductor in series with the load. The controller sets state conditions of the second switch, such that the inductor operates in a continuous current mode.||11-10-2011|
|20110273152||OUTPUT VOLTAGE RIPPLE CONTROL FOR A DC-DC POWER CONVERTER - An output ripple voltage average amplitude of a switch mode DC-DC converter is dynamically maintained. The converter has a switch and an output filter. By varying a switching period (T||11-10-2011|
|20100089431||TIME AVERAGED MODULATED DIODE APPARATUS FOR PHOTOVOLTAIC APPLICATION - DC-DC converters are described that employ a time-averaged modulated bypass diode to facilitate the efficient harvest of power in photovoltaic systems.||04-15-2010|
Patent applications by XANDEX, INC.