Li Jiang

Title: Li Jiang’s Patent in Power Regulation and Current Sensing.

Introduction

Li Jiang is an inventor based in San Jose, California, whose patent work addresses current sensing in high-power switching regulators. The supplied information identifies one patent associated with Jiang and Alpha and Omega Semiconductor International LP.

Latest Patents

Jiang’s listed patent, “High Power Fast Transient Response Linear Current Sensing Topology,” describes an apparatus and methods for a pole-zero-balanced power-switching regulation system designed for high-power, high-frequency applications.

In one illustrative implementation, a trans-inductor voltage regulator (TLVR) has at least two phases, each with a current-inducing circuit. A second-order current-sensing circuit, operably coupled to the TLVR, measures current flow in each phase. The TLVR’s transfer function may have two zeros and one pole, while the sensing circuit’s transfer function may have two DCR poles and one DCR zero. The arrangement is designed so corresponding poles and zeros effectively cancel, keeping the gain and phase differences between the transfer functions close to zero. This approach may enable fast transient current measurement at the TLVR.

Career Highlights

The supplied information associates Jiang with Alpha and Omega Semiconductor International LP. The patent’s focus is power regulation and current-sensing circuitry for demanding high-power, high-frequency applications.

Collaborations

The listed coworkers are Winway Chen and Sitthipong Angkititraku. The supplied information does not specify their roles in the patent or their working relationship with Jiang.

Conclusion

Li Jiang’s listed patent presents a pole-zero-balanced current-sensing approach intended to support fast transient measurement in high-power switching regulation systems.