Ruhe Shi

Title: Innovations by Ruhe Shi in Electronic Ballast Technology

Introduction

Ruhe Shi is an accomplished inventor based in Madison, AL, known for her significant contributions to electronic ballast technology. With a total of two patents to her name, she has developed innovative solutions that enhance the reliability and efficiency of fluorescent lighting systems.

Latest Patents

Her latest patents include an "IC-based low cost reliable electronic ballast with multiple striking attempts and end of lamp life protection." This invention focuses on creating a simple and cost-effective ballast for fluorescent lamps that integrates an integrated circuit along with various ballast protection functions. The design aims to improve reliability by incorporating end-of-lamp-life circuitry that shuts down the ballast when rectification currents exceed a predetermined level due to lamp aging. Additionally, it features re-ignition circuitry that allows for restarting the ballast when new lamps are installed without needing to shut off the ballast. Another notable patent is the "Electronic ballast having end of lamp life, overheating, and shut down protections, and reignition and multiple striking capabilities." This invention includes a comprehensive protection and control circuit that places the ballast in a protected state when the lamp load reaches an end-of-lamp-life condition or overheats, while also enabling multiple striking attempts for hard-to-strike lamp loads.

Career Highlights

Ruhe Shi is currently employed at Universal Lighting Technologies, Inc., where she continues to innovate in the field of lighting technology. Her work has significantly impacted the efficiency and reliability of electronic ballasts, making them more user-friendly and effective.

Collaborations

Throughout her career, Ruhe has collaborated with notable colleagues, including David Anthony Blair and Peter W. Shackle, contributing to advancements in electronic ballast technology.

Conclusion

Ruhe Shi's innovative work in electronic ballast technology showcases her dedication to enhancing lighting systems' reliability and efficiency. Her patents reflect a commitment to developing practical solutions that benefit both consumers and the industry.