Yi-Mei Li

Title: **The Innovative Contributions of Yi-Mei Li in LED Technology**

Introduction

Yi-Mei Li, an accomplished inventor based in New Taipei, Taiwan, has made significant strides in the field of lighting technology. With a remarkable portfolio of 25 patents, Li’s contributions focus primarily on the enhancement of light-emitting diode (LED) systems, showcasing his commitment to advancing energy-efficient solutions.

Latest Patents

Among his latest innovations are two patents that demonstrate his expertise in LED technology:

1. **Light-emitting diode lighting device which improves line regulation**: This invention includes a luminescent device powered by rectified AC voltage, alongside a current detecting circuit, a current regulating circuit, and a duty cycle detecting circuit. The design ensures that the current flowing through the luminescent device remains within safe limits, improving overall line regulation despite voltage fluctuations.

2. **Light-emitting diode lighting system with automatic bleeder current control**: This LED lighting system features a luminescent unit also driven by rectified AC voltage and incorporates a bleeder circuit. The circuit comprises a current source, a dimming detection unit, and an adjusting unit. The innovation allows for dynamic control of bleeder current, which is crucial in maintaining functionality during varying operational modes, particularly in dimming situations.

Career Highlights

Yi-Mei Li has demonstrated his expertise through his professional journey at notable companies such as IML International and Addtek Corporation. His work in these organizations has allowed him to refine his skills and contribute to various groundbreaking projects, particularly in the field of LED technology.

Collaborations

Throughout his career, Yi-Mei Li has collaborated with talented professionals, including coworkers Yung-Hsin Chiang and Horng-Bin Hsu. These partnerships have played a pivotal role in fostering innovation and enhancing the collective knowledge within the industry.

Conclusion

Yi-Mei Li's dedication to innovation in LED technology is evident through his extensive patent portfolio and significant contributions to various companies. His advancements not only reflect a deep understanding of electrical engineering but also a commitment to creating sustainable lighting solutions for the future. With continued innovation, Li is poised to play a crucial role in the evolution of lighting technologies.