Jinhua Duan

Title: Jinhua Duan: Innovator in Power Supply Technology

Introduction

Jinhua Duan is a notable inventor based in Shanghai, China. He has made significant contributions to the field of power supply technology, particularly through his innovative designs and patents. His work focuses on enhancing the efficiency and performance of power transistor driving circuits.

Latest Patents

Jinhua Duan holds a patent for "Power transistor driving circuits and methods for switching mode power supplies." This invention provides a power supply controller that delivers a drive current to a control terminal of a power transistor in three distinct time intervals. The controller is equipped with control circuits that manage the drive current in multiple stages. During the first time interval, the first drive current features a current spike that activates the power transistor in response to the initiation of the control signal pulse. In the second time interval, the second drive current consists of a ramping current that is substantially proportional to the magnitude of the current flowing through the power transistor. Finally, during the third time interval, the current flow to the power transistor is partially turned off before the conclusion of the control signal pulse.

Career Highlights

Jinhua Duan is currently employed at BCD Semiconductor Manufacturing Limited, a company recognized for its advancements in semiconductor technology. His role involves developing innovative solutions that improve power supply systems. His expertise in this area has positioned him as a valuable asset to his team and the industry.

Collaborations

Throughout his career, Jinhua has collaborated with several talented individuals, including Qiang Zong and Yajiang Zhu. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of cutting-edge technologies.

Conclusion

Jinhua Duan's contributions to power supply technology through his patent and work at BCD Semiconductor Manufacturing Limited highlight his innovative spirit and dedication to advancing the field. His inventions continue to influence the efficiency of power systems, showcasing the importance of innovation in technology.