Company Filing History:
Years Active: 2011-2012
Title: Waley Li: Innovator in Power Electronics
Introduction
Waley Li is a prominent inventor based in Beijing, China. He has made significant contributions to the field of power electronics, particularly in the development of innovative methods for noise cancellation and circuit design. With a total of 2 patents, his work has garnered attention in the industry.
Latest Patents
Waley Li's latest patents include a "Substrate Noise Passive Cancellation Method for Buck Converter" and a "Gate Driver Circuit for H Bridge Circuit." The substrate noise cancellation method utilizes an on-chip capacitor to effectively reduce substrate noise in buck converters. This capacitor can be realized in various forms, such as a MOS capacitor or an NMOS isolation ring n-well capacitor, making it easy to implement. The method also cleverly uses bond wire parasitic inductance to further mitigate substrate noise.
The gate driver circuit for the H bridge circuit addresses issues related to minority carrier injection and power dissipation. By biasing the gate voltage of the NMOS device at a range of 0.1V to 0.4V during the dead time of the H bridge circuit, it overcomes the limitations of conventional designs that operate at V=0.
Career Highlights
Waley Li is currently employed at Freescale Semiconductor, Inc., where he continues to innovate and develop cutting-edge technologies in power electronics. His work has been instrumental in advancing the efficiency and performance of electronic circuits.
Collaborations
He collaborates with talented coworkers, including Iven Zheng and Hongwei Zhao, who contribute to the innovative environment at Freescale Semiconductor.
Conclusion
Waley Li's contributions to power electronics through his patents and work at Freescale Semiconductor highlight his role as a key innovator in the field. His advancements in noise cancellation and circuit design are paving the way for more efficient electronic systems.