Keyao Sun

Title: Keyao Sun: Innovator in Power Supply Technologies

Introduction

Keyao Sun is a prominent inventor based in Blacksburg, Virginia. He has made significant contributions to the field of power supply technologies, holding 2 patents that showcase his innovative approach to electrical engineering.

Latest Patents

One of his latest patents is focused on a voltage-balancing non-isolated high-step-down-ratio power supply. This invention describes topologies and configurations of step-down power supplies that include unidirectional balancing cells. In this design, a step-down power supply features an input and an output, a string of series-connected capacitors, and multiple unidirectional balancing cells. These cells are configured to transfer power unilaterally among the capacitors in different directions, enhancing the efficiency of power distribution. Additionally, the power supply incorporates a gate controller that generates switching control signals at a frequency decoupled from the resonant frequency of the balancing branch.

Another notable patent by Keyao Sun involves a series/series resonant topology for wireless power transfer. This invention presents an efficient compensation network aimed at reducing reactive power in wireless power transfer systems. The compensation network consists of a series/series constant current source, a reactive power compensation capacitor, and a constant current-to-constant voltage network. This innovative design converts input voltage signals into a constant alternating current signal, which is then transformed into a constant AC voltage signal, thereby improving the overall performance of wireless power systems.

Career Highlights

Keyao Sun is associated with Virginia Tech Intellectual Properties, Inc., where he continues to develop and refine his inventions. His work has significantly impacted the field of power supply technologies, making him a valuable asset to his organization.

Collaborations

Throughout his career, Keyao has collaborated with notable colleagues such as Rolando Burgos and Dushan Boroyevich. These collaborations have further enriched his research and development efforts in the field.

Conclusion

Keyao Sun is an influential inventor whose work in power supply technologies has led to innovative solutions that enhance efficiency and performance. His contributions are paving the way for advancements in electrical engineering and wireless power transfer systems.