Jiangang Liu

Title: Innovations by Jiangang Liu in Isolation Impedance Measurement

Introduction

Jiangang Liu is an accomplished inventor based in San Jose, California. He has made significant contributions to the field of electrical engineering, particularly in the measurement of isolation impedance in electric vehicles (EVs) and hybrid electric vehicles (HEVs). His innovative work focuses on enhancing the safety and efficiency of high voltage systems in vehicles.

Latest Patents

Jiangang Liu holds a patent for an "Isolation impedance measuring system and method using Fourier transform and component value self-calibration." This invention discloses methods and systems for measuring isolation impedance in vehicles equipped with high voltage systems. The method employs an extraction algorithm based on a Fourier transform to calculate phase and amplitude, which are then used to determine the isolation impedance. This impedance includes leakage resistance and total capacitance that are coupled in parallel between the high voltage system and the chassis. Additionally, the invention provides a method for component value self-calibration, ensuring accurate measurements.

Career Highlights

Jiangang Liu is currently employed at Maxim Integrated Products, Inc., where he continues to develop innovative solutions in the field of electrical engineering. His work has been instrumental in advancing technologies that improve the safety and performance of electric vehicles.

Collaborations

Jiangang Liu collaborates with Jason Allen Wortham, contributing to various projects that aim to enhance the functionality and reliability of high voltage systems in vehicles.

Conclusion

Jiangang Liu's contributions to the field of isolation impedance measurement represent a significant advancement in electric vehicle technology. His innovative patent and ongoing work at Maxim Integrated Products, Inc. highlight his commitment to improving safety and efficiency in high voltage systems.