This inventor holds 1 USPTO granted patent. Top assignee: Philips Electronics North America Corporation. Active years: 1998.
Company Filing History:
Years Active: 1998
Title: Innovations by John Wei-Fan Chou
Introduction
John Wei-Fan Chou is an accomplished inventor based in Monterey Park, CA (US). He has made significant contributions to the field of lighting control technology. His innovative approach focuses on reducing energy consumption through efficient lighting systems.
Latest Patents
One of Chou's notable patents is for a lighting control circuit designed to reduce energy consumption. This circuit operates by controlling the lighting of specific lamps in response to the toggling of a power switch. The design connects only with the high (output) side of a lighting system's ballast and is completely contained on the high side. It relies on a single time period for toggling, making it user-friendly. The circuit can be utilized with any ballast that employs an output transformer, requiring no modifications to the original ballast circuitry. The operation is straightforward, utilizing a triac driven by a flip-flop via a driver transistor to manage the high-frequency AC power that drives the lamps. A Schmitt trigger sharpens the signal generated by the ballast output transformer in response to the toggling of the light switch. This innovative design allows for efficient control of lighting, enhancing energy savings.
Career Highlights
Chou is currently employed at Philips Electronics North America Corporation, where he continues to develop and refine his innovative ideas. His work has contributed to advancements in energy-efficient lighting solutions.
Collaborations
Chou has collaborated with notable colleagues, including Richard Qun Li and Ronald Siepkes, to further enhance the impact of his inventions.
Conclusion
John Wei-Fan Chou's contributions to lighting control technology exemplify the importance of innovation in reducing energy consumption. His patent reflects a commitment to creating efficient solutions that benefit both users and the environment.