This inventor holds 1 USPTO granted patent. Top assignee: The University of Hong Kong. Active years: 2006.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2006
Title: Innovations of Joe Chiu Pong Liu
Introduction
Joe Chiu Pong Liu is a notable inventor based in Hong Kong, CN. He has made significant contributions to the field of electrical engineering, particularly in the development of power conversion technologies. His innovative approach has led to the creation of a unique patent that addresses the challenges associated with fluorescent lamp dimming.
Latest Patents
One of Joe Chiu Pong Liu's key patents is titled "Dimmable ballast with resistive input and low electromagnetic interference." This invention describes an AC to AC power conversion apparatus designed to provide constant power feeding characteristics to fluorescent lamps or FD lamps. The technology achieves constant power characteristics through discontinuous mode operation of a capacitor coupled in series with the load. Energy packets are delivered to the load in each switching cycle, independent of the resonant characteristics. The input power's dependence on the square of the supply voltage results in a resistive input, which automatically produces a good power factor. Additionally, the lamp load can be dimmed using an external phase control dimmer, similar to resistive incandescent lamps. The design allows for multiple lamp loads with varying power ratings to be integrated by adding more sets of capacitors and associated components.
Career Highlights
Joe Chiu Pong Liu is affiliated with The University of Hong Kong, where he continues to contribute to research and innovation in electrical engineering. His work has garnered attention for its practical applications and efficiency improvements in lighting technology.
Collaborations
Joe has collaborated with several colleagues, including Franki Ngai Kit Poon and Man Hay Pong. Their combined expertise has further advanced the research and development of innovative electrical solutions.
Conclusion
Joe Chiu Pong Liu's contributions to the field of electrical engineering, particularly through his patent on dimmable ballasts, showcase his innovative spirit and dedication to improving technology. His work not only enhances the functionality of lighting systems but also promotes energy efficiency in everyday applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile