Shuran Wei

Title: Shuran Wei: Innovator in Phase-Locked Loop Technology

Introduction

Shuran Wei is a prominent inventor based in Saint Paul, MN (US). He has made significant contributions to the field of electronics, particularly in the development of phase-locked loop (PLL) technologies. With a total of 6 patents to his name, Wei's work has had a substantial impact on the industry.

Latest Patents

One of Wei's latest patents is titled "Fully integrated phase-locked loop with resistor-less loop filter." This invention includes a phase detector, a charge pump, a resistor-less loop filter, and a voltage-controlled oscillator (VCO). The design features a phase detector with a reference input, a feedback input, and a charge control output. The charge pump is connected to the charge control output, while the resistor-less loop filter is linked to the charge pump. The VCO has a control voltage input connected to the resistor-less loop filter, a clock output linked to the feedback input, and a series of delay elements that form a ring oscillator. Each delay element includes a delay element output, with a MOSFET gate oxide capacitance coupled between each delay element output and the charge control output.

Another notable patent is the "VCO supply voltage regulator for PLL." This invention comprises a control voltage input, first and second supply voltage inputs, a regulated voltage output, a current source, and an amplifier. The current source connects the first voltage supply input to the regulated voltage output and has a bias input. The amplifier's input is coupled to the control voltage input, while its output connects to the bias input, and the feedback input is linked to the regulated voltage output.

Career Highlights

Shuran Wei has built a successful career at LSI Logic Corporation, where he has been instrumental in advancing PLL technologies. His innovative designs have contributed to the company's reputation as a leader in the semiconductor industry.

Collaborations

Throughout his career, Wei has collaborated with notable colleagues, including Alan S. Fiedler and Randall E. Bach. These partnerships have fostered a creative environment that has led to groundbreaking advancements in technology.

Conclusion

Shuran Wei's contributions to phase-locked loop technology exemplify his dedication to innovation in the electronics field. His patents reflect a deep understanding of complex systems and a commitment to advancing technology. His work continues