Pilawa-Podgurski
Robert Pilawa-Podgurski, Cambridge, MA US
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20110284059 | THERMOPHOTOVOLTAIC ENERGY GENERATION - Inventive systems and methods for the generation of energy using thermophotovoltaic cells are described. Also described are systems and methods for selectively emitting electromagnetic radiation from an emitter for use in thermophotovoltaic energy generation systems. In at least some of the inventive energy generation systems and methods, a voltage applied to the thermophotovoltaic cell (e.g., to enhance the power produced by the cell) can be adjusted to enhance system performance. Certain embodiments of the systems and methods described herein can be used to generate energy relatively efficiently. | 11-24-2011 |
20130221753 | POWER PROCESSING METHODS AND APPARATUS FOR PHOTOVOLTAIC SYSTEMS - High power output may be obtained from a photovoltaic (PV) system by controlling each photovoltaic cell of a solar array individually to operate at its maximum power point. Each cell may have associated power electronics and control circuitry that may be integrated together on a chip which may be advantageously implemented in CMOS, enabling reductions in cost and size. A perturb and observe algorithm may be used to find the maximum power point by measuring the power produced at different operating points, and modifying the operating point in the direction of increased power production. In one aspect, performance of a perturb and observe algorithm may be improved in the presence of noise. | 08-29-2013 |
Robert Pilawa-Podgurski, Urbana, IL US
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20160079761 | SYSTEM AND METHOD FOR POWER POINT TRACKING FOR PHOTOVOLTAIC CELLS - A system includes a first photovoltaic sub-module connected with a second photovoltaic sub-module. A first differential power processing converter connects with the first photovoltaic submodule and the second photovoltaic sub-module, and a third photovoltaic sub-module connects with the second photovoltaic sub-module and the first differential power processing converter. A second differential power processing converter connects with the first differential power processing converter, the first photovoltaic sub-module, the second photovoltaic sub-module and the third photovoltaic sub-module, where the second differential power processing converter communicates with the first differential power processing converter to exchange an information about determined perturbation of the first differential power processing converter and the second differential power processing converter. | 03-17-2016 |
Robert C.n. Pilawa-Podgurski, Cambridge, MA US
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20120313602 | Power Converter With Capacitive Energy Transfer And Fast Dynamic Response - A converter circuit and related technique for providing high power density power conversion includes a reconfigurable switched capacitor transformation stage coupled to a magnetic converter (or regulation) stage. The circuits and techniques achieve high performance over a wide input voltage range or a wide output voltage range. The converter can be used, for example, to power logic devices in portable battery operated devices. | 12-13-2012 |
20120326684 | Power Converter With Capacitive Energy Transfer And Fast Dynamic Response - A converter circuit and related technique for providing high power density power conversion includes a reconfigurable switched capacitor transformation stage coupled to a magnetic converter (or regulation) stage. The circuits and techniques achieve high performance over a wide input voltage range or a wide output voltage range. The converter can be used, for example, to power logic devices in portable battery operated devices. | 12-27-2012 |
20150280553 | Power Converter With Capacitive Energy Transfer And Fast Dynamic Response - A converter circuit and related technique for providing high power density power conversion includes a reconfigurable switched capacitor transformation stage coupled to a magnetic converter (or regulation) stage. The circuits and techniques achieve high performance over a wide input voltage range or a wide output voltage range. The converter can be used, for example, to power logic devices in portable battery operated devices. | 10-01-2015 |
Robert C.n. Pilawa-Podgurski, Urbana, IL US
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20150131187 | Systems and Methods for Photovoltaic String Protection - A system and method includes a circuit for protecting a photovoltaic string. A bypass switch connects in parallel to the photovoltaic string and a hot spot protection switch connects in series with the photovoltaic string. A first control signal controls opening and closing of the bypass switch and a second control signal controls opening and closing of the hot spot protection switch. Upon detection of a hot spot condition the first control signal closes the bypass switch and after the bypass switch is closed the second control signal opens the hot spot protection switch. | 05-14-2015 |
Robert C. N. Pilawa-Podgurski, Cambridge, MA US
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20090278520 | Power Converter with Capacitive Energy Transfer and Fast Dynamic Response - A converter circuit and related technique for providing high power density power conversion includes a reconfigurable switched capacitor transformation stage coupled to a magnetic converter (or regulation) stage. The circuits and techniques achieve high performance over a wide input voltage range or a wide output voltage range. The converter can be used, for example, to power logic devices in portable battery operated devices. | 11-12-2009 |