Jianyang Liu

Title: Innovations by Jianyang Liu

Introduction

Jianyang Liu is a notable inventor based in Lake Forest, CA, with a remarkable portfolio of six patents. His work primarily focuses on advancements in circuit interrupters and current sensing technologies. Liu's innovative designs address critical challenges in electrical engineering, particularly in space-constrained environments.

Latest Patents

One of Liu's latest patents is the "Compact flat-mount segmented Rogowski coil." This invention presents an improved PCB Rogowski coil that effectively addresses the challenges posed by limited space within circuit interrupters. The design features multiple PCBs that are coupled together, contrasting with traditional coils made from a single PCB. During the pre-assembly stage, three PCBs are joined to create a partial coil assembly, which is then mounted onto a circuit interrupter's primary conductor. A fourth PCB is subsequently connected via press-fit connectors to complete the coil. This modular design allows a significant portion of the PCB surface area to be mounted parallel to the primary conductor, thereby occupying considerably less space than conventional PCB Rogowski coils.

Another significant patent is the "Solid state circuit interrupter." This invention includes a current sensor with both a normal sensor output and an overcurrent detection output. It features a solid-state switch module that can be in a closed state to allow current flow or an open state to interrupt it. The gate driver controls the solid-state switch module and includes a desaturation function output. This design enables the solid-state switch module to interrupt current flow when the DESAT function output changes to the on state. Additionally, an electronic trip circuit outputs a trip signal to the gate driver when the normal sensor output reaches a specific threshold or when the overcurrent detection output is activated.

Career Highlights

Jianyang Liu is currently employed at Eaton Intelligent Power Limited, where he continues to contribute to innovative electrical solutions. His expertise in circuit design and current sensing has made a significant impact in the field.

Collaborations

Liu collaborates with talented colleagues, including Xin Zhou and Brian E. Carlson, who share his commitment to advancing technology in electrical engineering.

Conclusion

Jianyang Liu's contributions to the field of electrical engineering through his innovative patents demonstrate his dedication to solving complex challenges. His work continues to influence the development of more efficient and compact circuit interrupters.