Yanjun Shi

Title: Yanjun Shi: Innovator in Electric Vehicle Technology

Introduction

Yanjun Shi is a notable inventor based in Torrance, CA, specializing in advancements related to electric vehicle technology. With a total of 3 patents to his name, he has made significant contributions to the field, particularly in current sensor compensation and dual-active bridge converters.

Latest Patents

One of Yanjun Shi's latest patents is focused on current sensor compensation. This innovation involves a system that includes a charger for electric vehicles, which features one or more controllers. A controller amplifies an input signal at a selected frequency to generate a first signal, while another controller amplifies the direct current component of the input signal to create a second signal. Additionally, a component of the charger generates a reference signal for input into the current sensor, based on a combination of the first and second signals.

Another significant patent by Yanjun Shi pertains to modulation aimed at extending the zero-voltage switching margin for dual-active bridge converters. This patent describes systems and methods for controlling a dual active bridge (DAB) converter. It involves detecting a bus voltage of the DAB converter and determining the first and second duty ratios of the primary and secondary bridges. The duty ratios are modified by adjusting differential mode and common mode adjustment variables based on the detected bus voltage, leading to a time-based switching sequence for the respective switches.

Career Highlights

Yanjun Shi is currently employed at Rivian IP Holdings, LLC, where he continues to innovate in the electric vehicle sector. His work is instrumental in enhancing the efficiency and performance of electric vehicle charging systems.

Collaborations

Yanjun collaborates with talented individuals such as Zahra Mohajerani and Mohammad Nanda Rahmana Marwali, contributing to a dynamic and innovative work environment.

Conclusion

Yanjun Shi's contributions to electric vehicle technology through his patents and work at Rivian IP Holdings, LLC, highlight his role as a key innovator in the industry. His advancements in current sensor compensation and dual-active bridge converters are paving the way for more efficient electric vehicle systems.