Jia Wei

Title: Innovations by Inventor Jia Wei

Introduction

Jia Wei is an accomplished inventor based in Blacksburg, VA (US). He has made significant contributions to the field of voltage regulation, holding a total of 4 patents. His work focuses on enhancing the efficiency of voltage regulators, particularly in applications involving power-saving modes.

Latest Patents

One of Jia Wei's latest patents is titled "Adaptive bus voltage positioning for two-stage voltage regulators." This invention alters the voltage input to a voltage regulator output stage from a regulator stage in a two-stage voltage regulator. It provides optimal voltage placement for a wide range of current loads, thereby increasing voltage regulator efficiency. This technology is particularly suited for CPUs that operate in power-saving sleep modes. The invention selects or develops an optimal voltage based on information regarding the operational mode or current consumption of the powered device. A notable feature of this invention is the ability to adjust the selected voltage to further optimize the matching of voltage placement to the load, offering a continuous range of voltages.

Another significant patent is "Two-stage voltage regulators with adjustable intermediate bus voltage, adjustable switching frequency, and adjustable number of active phases." This two-stage power converter dynamically adjusts to output current requirements. The first stage regulator provides power to a second stage regulator, which can be a multiple-phase buck converter. The output voltage of the first stage, known as the intermediate bus voltage (Vbus), is varied according to the load current to optimize conversion efficiency. As the load current increases, the Vbus voltage is also increased to maximize efficiency. The Vbus voltage can be adjusted through duty cycle or operating frequency control, and the switching frequency of the second stage can be varied to maintain constant output current ripple.

Career Highlights

Jia Wei is associated with Virginia Tech Intellectual Properties Inc., where he continues to innovate and develop new technologies. His work has significantly impacted the field of power electronics, particularly in improving the efficiency of voltage regulation systems.

Collaborations

Jia Wei has collaborated with notable colleagues, including Fred C. Lee and Ming Xu, who have contributed to his research and development efforts.

Conclusion

Jia Wei's innovative patents and contributions to voltage regulation technology demonstrate his commitment to enhancing efficiency in electronic systems. His work continues to influence the field and pave the way for future advancements.