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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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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This invention can cancel undesirable noise generated by the components’ parasitic inductances, physical orientation, and the layout of conductive tracks on the printed circuit boards. It can effectively improve the high-frequency response of the entire circuit or system. The invented method can be.....
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CityU researchers have developed an efficient thermoelectric modular design for converting heat energy into electrical power. The team aims to identify high-performance thermoelectric materials and to minimize cost. A new nanomaterial is developed for the said purpose. Thermoelectric materials can b.....
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Axial mode helix antennas are used as RFID base station antennas but the number of winding of helix antennas are at least 10, making them too high for use as base station antennas. To address the problem, an integrated wire elliptical helical antenna with novel cuboids dielectric resonator loading f.....
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