Zhizhi Li

Title: Zhizhi Li: Innovator in Power Supply Technology

Introduction

Zhizhi Li is a prominent inventor based in Hong Kong, China. He has made significant contributions to the field of power supply technology, holding 2 patents to his name. His work focuses on enhancing the efficiency and functionality of multi-phase switched-mode power supplies.

Latest Patents

Zhizhi Li's latest patents include innovative designs for multi-phase switched-mode power supplies. These designs feature first and second interleaved phase circuits that are coupled between input and output terminals. The first phase circuit incorporates a first inductor connected to a first switch, while the second phase circuit includes a second inductor linked to a second switch. A control circuit is responsible for outputting first and second PWM signals to these switches. Notably, the on time of the second PWM signal is equal to the on time of the first PWM signal plus a fixed offset time period. The control circuit also determines the period between rising edges of the first PWM signal to establish an off trigger PWM signal. It changes the second PWM signal to a logical low value when a falling edge of the off trigger PWM signal occurs while the second PWM signal remains high.

Career Highlights

Zhizhi Li is currently employed at Astec International Limited, where he continues to develop cutting-edge technologies in power supply systems. His expertise in this area has positioned him as a valuable asset to the company.

Collaborations

Throughout his career, Zhizhi Li has collaborated with notable colleagues, including Israel Gomez Beltran and Siu Lun Wu. These partnerships have fostered innovation and contributed to the advancement of power supply technologies.

Conclusion

Zhizhi Li's contributions to the field of power supply technology through his patents and work at Astec International Limited highlight his role as an influential inventor. His innovative designs continue to shape the future of power supply systems.