This inventor holds 2 USPTO granted patents. Top assignees: Virginia Polytechnic Institute and State University, Virginia Tech Intellectual Properties Inc.. Active years: 2013-2016.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 79 
1 out of 825 
Years Active: 2013-2016
Title: The Innovations of Shu Ji
Introduction
Shu Ji is an accomplished inventor based in Blacksburg, VA (US). He holds 2 patents that showcase his expertise in power conversion technologies. His work primarily focuses on enhancing the efficiency and performance of electronic systems.
Latest Patents
One of Shu Ji's latest patents is titled "Optimal trajectory control for LLC resonant converter for LED PWM dimming." This invention provides a method for controlling a resonant power converter, particularly for dimming light-emitting diode arrays without loss of efficiency. The technology limits dynamic oscillation at the beginning of a pulse width modulated pulse burst by shortening the first and/or last pulse of a pulse burst. This approach allows for a connection with a full load steady-state voltage/current trajectory of the power converter, significantly reducing dynamic oscillation.
Another notable patent is the "Multi-channel constant current source and illumination source." This invention features a multi-channel circuit powered through transformers with primary windings connected in series. It allows for substantially equal constant currents across all channels by cross-regulation, requiring only a single channel to be monitored and controlled. The design improves efficiency by reducing the number of stages in the constant current source while providing both DC-to-DC conversion and constant current regulation.
Career Highlights
Shu Ji has made significant contributions to the field of electrical engineering through his work at Virginia Tech Intellectual Properties Inc. and Virginia Polytechnic Institute and State University. His innovative approaches have led to advancements in power electronics and lighting technologies.
Collaborations
Shu Ji has collaborated with notable professionals in his field, including Fred C. Lee and Weiyi Feng. Their combined expertise has contributed to the development of cutting-edge technologies in power conversion.
Conclusion
Shu Ji's contributions to the field of power electronics through his patents and career highlights demonstrate his commitment to innovation. His work continues to influence the efficiency of electronic systems and lighting technologies.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile