Zeqiang Chen

Title: Zeqiang Chen: Innovator in Power Supply Technologies

Introduction

Zeqiang Chen, based in Shanghai, China, is a distinguished inventor known for his contributions to the field of power supply technologies. With a total of four patents to his name, Chen has made significant strides towards enhancing the efficiency and functionality of switched mode power supplies (SMPS).

Latest Patents

Among his latest innovations, Chen has developed two notable patents: the "High Power-Factor Control Circuit and Method for Switched Mode Power Supply" and the "High Power-Factor Control Circuit and Power Supply."

The first patent describes an SMPS system that integrates a rectifying circuit with a transformer and control mechanisms. This innovative system is designed to ensure that current flow in the primary winding is synchronized with the AC input voltage, thereby delivering a constant average output current.

The second patent further refines the power supply's performance by utilizing a power switch with a constant turn-on time. This ensures that the current is maintained in phase with the rectified periodic input line voltage, achieving a high power factor without the need for voltage sampling. The innovation uses a minimalistic controller chip design that can operate in either Boundary Conduction Mode or Discontinuous Conduction Mode, showcasing Chen's emphasis on efficiency.

Career Highlights

Chen's career features prominent roles at BCD Semiconductor Manufacturing Co., Ltd. and Shanghai Sim-bcd Semiconductor Manufacturing Co., Ltd., where he contributed to groundbreaking advancements in semiconductor technologies and power supply systems. His expertise has been pivotal in implementing practical solutions that enhance the efficiency of electrical devices.

Collaborations

Throughout his career, Chen has collaborated with notable professionals in the field, including Xuegang Ren and Yajiang Zhu. These partnerships highlight his commitment to innovation and knowledge sharing within the semiconductor and power supply communities.

Conclusion

Zeqiang Chen stands out as a significant figure in the realm of power supply innovation. His patented technologies not only advance the efficiency of SMPS systems but also pave the way for future developments in the industry. As he continues to innovate, Chen's work will undoubtedly influence the trajectory of power supply technology for years to come.