The invention concerns a method and apparatus for controlling the output phase of a voltage controlled oscillator (VCO) for use in antenna arrays for receiving radio signals. Such arrays can converge energy, receive signals, and reject interference. Beam-forming techniques using phase shifters are u.....
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The panoramic stereo imaging system is capable of providing 3D visual information in all directions with depth information. The system, installed with a camera coaxially combined with a fisheye lens and mirror, provides stereo vision over a 360-degree horizontal field of view and the entire vertical.....
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High-order filters, capable of increasing the efficiency of converters, depend on advanced control algorithms to reduce multiple resonant frequencies, but that such algorithms often require precise information about the component parameters of the converter’s output filters. To capture the parameter.....
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Recent advances in power electronics and semiconductor technologies and cost reduction of solar panels have profound impact on the commercial acceptance of grid connected photovoltaic (PV) systems. Among various choices, high energy-efficient AC-modules that consist of an inverter are suitable for s.....
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The invention relates to a method of manufacturing ballasts for high voltage discharge lamps. The method provides the passive LC ballast with an inductance and capacitance derived from a non-linear model. The purpose is to ensure that the lamp operates at a pre-determined lamp power. The ballast is .....
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