Weihong Qui

Title: Weihong Qui - Innovator in Power Factor Correction Technology

Introduction

Weihong Qui is a notable inventor based in Kent, WA (US). He has made significant contributions to the field of electrical engineering, particularly in the development of power factor correction technologies. His innovative approach has led to the creation of a low-cost AC/DC converter that enhances efficiency and reduces costs.

Latest Patents

Weihong Qui holds a patent for a "Low cost AC/DC converter with power factor correction." This high-performance single-stage Power Factor Correction (PFC) converter features tight output voltage regulation and a simple circuit design. The design allows for lower costs compared to its counterparts. The converter utilizes two basic flyback circuits, which include a straightforward control circuit. In the hard switching circuit, only one switch is employed to achieve cost-effectiveness. For the soft switching scheme, an auxiliary switch is added to enhance efficiency and reduce size. The design incorporates two power flow paths, which minimize current stress and improve overall efficiency. The maximum DC bus voltage is limited to less than 400 volts, and a single commercial capacitor can be utilized for universal voltage stress under light load conditions. Weihong Qui has 1 patent to his name.

Career Highlights

Weihong Qui is associated with the University of Central Florida Research Foundation Inc., where he continues to innovate and contribute to research in electrical engineering. His work has garnered attention for its practical applications and cost-saving benefits.

Collaborations

Weihong Qui has collaborated with esteemed colleagues, including Issa E Batarseh and Wenkal Wu, who have also made significant contributions to the field of electrical engineering.

Conclusion

Weihong Qui's innovative work in power factor correction technology exemplifies the impact of research and development in electrical engineering. His contributions not only advance technology but also provide cost-effective solutions for various applications.