Shanglin Xu

Title: Innovations of Shanglin Xu

Introduction

Shanglin Xu is a notable inventor based in Chengdu, China. He has made significant contributions to the field of power systems and charge pump technology. With a total of 4 patents to his name, Xu continues to push the boundaries of innovation in his industry.

Latest Patents

One of Xu's latest patents is a supply voltage generating method for a driver circuit in a power system. This invention involves a power system that includes a power input terminal to receive an input voltage, a system output terminal to provide a system voltage, a switching circuit, a bootstrap capacitor, and a first driver circuit with a power terminal. The switching circuit operates in buck mode to convert the input voltage to the system voltage, or in boost mode to convert the system voltage to a boost output voltage. The bootstrap capacitor generates a bootstrap voltage at a bootstrap terminal. The method generates an input pump voltage based on the input voltage and the boost output voltage, creates a first supply voltage based on the bootstrap voltage and the input pump voltage, and supplies the first supply voltage to the power terminal of the first driver circuit.

Another significant patent by Xu is a charge pump with improved light-load efficiency and its control method. This charge pump consists of two bridge arms coupled in parallel, two capacitors, and a control circuit. Each bridge arm features two pairs of switches connected in series, with each pair having two switches linked through a common node. Each capacitor is positioned between the two common nodes of the corresponding bridge arm. The control circuit generates a mode signal by comparing the output voltage of the charge pump with two threshold voltages through hysteretic comparison. It also provides two control signals with opposite logic states based on the mode signal to manage each pair of switches complementarily.

Career Highlights

Shanglin Xu is currently employed at Chengdu Monolithic Power Systems Co., Ltd. His work focuses on developing innovative solutions that enhance the efficiency and performance of power systems. His expertise in this area has led to the successful filing of multiple patents, showcasing his commitment to advancing technology.

Collaborations

Xu collaborates with talented individuals such as Rui Wang and Haishi Wang. Their teamwork fosters an environment of creativity and innovation, contributing to the success of their projects.

Conclusion

Shanglin Xu is a prominent inventor whose work in power systems and