Lizhi Xu

Title: Lizhi Xu: Innovator in Power Frequency Current Conversion

Introduction

Lizhi Xu is a prominent inventor based in Shanghai, China. He has made significant contributions to the field of electrical engineering, particularly in power frequency current conversion. With a total of 11 patents to his name, Xu continues to push the boundaries of innovation in his area of expertise.

Latest Patents

Among his latest patents is the "Power frequency current converter and method for controlling the same." This invention provides a power frequency current converter that includes an input side and an output side, where the current on either side is a power frequency current. The design features a switching device and a controller that manages the switching device's operation at an operating frequency. The controller generates at least two fixed-frequency control signals within half of a power frequency cycle, allowing the switching device's operating frequency to change at least twice. This innovation aims to reduce the junction temperature of the switching device.

Another notable patent is the "Converter system, driving circuit and method for semiconductor switch." This application discloses a converter system along with a driving circuit and method for a semiconductor switch. The driving circuit consists of a driving unit, a sampling unit, and a selection unit. It includes multiple turn-off driving units with varying turn-off parameters, allowing for the selection of a unit that adapts to the working state of the semiconductor switch.

Career Highlights

Lizhi Xu has worked with notable companies such as Delta Electronics (Shanghai) Co., Ltd and Delta Electronics, Inc. His experience in these organizations has contributed to his expertise and innovative capabilities in the field of electrical engineering.

Collaborations

Throughout his career, Xu has collaborated with talented individuals, including Weiqiang Zhang and Jianping Ying. These collaborations have likely enriched his work and led to further advancements in his inventions.

Conclusion

Lizhi Xu is a distinguished inventor whose work in power frequency current conversion has garnered attention and respect in the engineering community. His innovative patents and collaborations reflect his commitment to advancing technology in his field.