Wen-Jian Gu

Title: The Innovative Contributions of Wen-Jian Gu

Introduction

Wen-Jian Gu is a notable inventor based in Croton-on-Hudson, NY (US). He has made significant contributions to the field of electrical engineering, particularly in the development of advanced ballast systems for lighting applications. With a total of nine patents to his name, Gu's work has had a considerable impact on energy efficiency and cost reduction in lighting technology.

Latest Patents

One of Gu's latest patents is for a high-efficiency dimmable cold cathode fluorescent lamp ballast. This invention includes a ballast that features an inverter and a circuit with a resonant frequency coupled to the output of the inverter. In this embodiment, the only discrete type of element that substantially affects the resonant frequency is primarily inductive in electrical character. Notably, there is no discrete ballasting element in series with the lamp load, which reduces both power consumption and costs associated with the ballast.

Another significant patent is for a two-frequency electronic ballast system that incorporates an isolated PFC converter. This AC-AC ballast system is designed for discharge lamps, such as fluorescent lamps. It includes a PFC converter with an isolation transformer and a DC-AC inverter on the secondary side. The isolation provided by the transformer allows for a significantly higher switching frequency in the PFC converter compared to the lamp current frequency. This innovation enables a reduction in the size and weight of the ballast system without increasing EMI radiation emissions.

Career Highlights

Wen-Jian Gu has worked with prominent companies in the industry, including Philips Electronics North America Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in lighting technology.

Collaborations

Throughout his career, Gu has collaborated with talented individuals such as Rui Liu and Gregory T DiVincenzo. These partnerships have contributed to the successful development of his patented technologies.

Conclusion

Wen-Jian Gu's contributions to the field of electrical engineering, particularly in ballast systems for lighting, demonstrate his commitment to innovation and efficiency. His patents reflect a deep understanding of technology and a drive to improve energy consumption in lighting applications.