Company Filing History:
Years Active: 2006-2009
Title: Shu-hung Chung: Innovator in Electronic Ballast Technology
Introduction
Shu-hung Chung is a notable inventor based in Hong Kong, CN. He has made significant contributions to the field of electronic ballast technology, particularly for high-intensity discharge lamps. With a total of 3 patents to his name, his work has advanced the efficiency and functionality of lighting systems.
Latest Patents
One of his latest patents focuses on circuit designs and control techniques for high-frequency electronic ballasts for high-intensity discharge lamps. This invention provides an electronic ballast that includes an inverter and a resonant circuit with an ignition capacitor. The ignition capacitor is crucial for supplying the necessary start-up energy and ensuring a low impedance discharge path. In cases where a long cable connects the lamp to the ballast, two ignition capacitors in parallel may be utilized. Additionally, the ballast features monitoring and control mechanisms for lamp power, as well as detection systems for short-circuit and open-circuit conditions. Another significant patent involves an apparatus and method for providing dimming control of lamps and electrical lighting systems. This dimming is achieved through a reactive power device that is placed in series between the AC supply and the ballast. The device allows for a variable auxiliary voltage to be applied to the lamp, enabling effective dimming control.
Career Highlights
Shu-hung Chung has worked with esteemed institutions such as the City University of Hong Kong and E.Energy Double Tree Limited. His experience in these organizations has contributed to his expertise in electronic ballast technology and lighting systems.
Collaborations
Throughout his career, Shu-hung has collaborated with notable colleagues, including Shu Yuen Ron Hui and Ngai Man Ho. These partnerships have fostered innovation and development in the field of electronic lighting solutions.
Conclusion
Shu-hung Chung's contributions to electronic ballast technology have made a significant impact on the efficiency and control of lighting systems. His innovative patents and collaborations highlight his role as a leading inventor in this field.