This technology is a dynamic output compensator that can significantly improve the dynamic response of voltage regulators. The key advantage of the compensation method is that it is not necessary to redesign the power conversion stage and controller existing in voltage regulators. It only requires .....
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In recent years, indoor air quality has become an important issue in Hong Kong, China and in many other countries. Numerous indoor sources emit a low concentration of volatile organic compounds (VOCs), which cause adverse health effects such as allergic reactions, tiredness, and even cancer. Conside.....
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The invention proposes the adding ay to the insidof a small time-dele differential link of a PID controller. The differential action efficiency is satisfactory when the time delay is little. In case the time delay is large, the differential action work will switch to the proportional control operati.....
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This invention aims at enhancing and widening the spatial effect of stereo audio system. Traditional ways of enhancing the spatial effect of a stereo audio system may sound mechanical, and could be affected by external factors such as the auditory characteristics of the listeners. Our method conceal.....
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Surfaces with extreme liquid-repellency is critical to the functionality and robustness of many commercial and industrial applications including weather-resistant machines and apparel, non-stick and anti-fouling surfaces for consumer products and life sciences equipment, and moisture-repellent surfa.....
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