Chengmin Li

Title: Chengmin Li and Advances in Quasi-Multi-Level Power Conversion

Introduction

Chengmin Li is an inventor based in Lausanne, Switzerland. His work includes power-conversion technologies, and he is associated with Huawei Technologies Co., Ltd. His patent portfolio includes 2 patents.

Latest Patents

Li’s recent patent work includes “Quasi three-level power converter,” which describes a converter that switches a direct-current voltage between positive and negative terminals to produce an alternating-current output with three main voltage levels. Transitions between those levels follow a trapezoidal shape and include at least one intermediate voltage sub-level.

His other recent patent, “Quasi multi-level converter,” concerns a power converter and its method of operation. The design addresses scalable operating voltage, multiple output levels, controllable voltage slew rates, and the balance between high-voltage capability and the size and weight of passive components.

Career Highlights

Li’s listed work at Huawei Technologies Co., Ltd. connects his inventive activity with power electronics and converter design. The two patent disclosures focus on managing voltage levels and transitions in power-conversion systems.

Collaborations

Li’s listed coworkers include Peng Shuai and Drazen Dujic. Their names provide context for the professional network associated with his work.

Conclusion

Chengmin Li’s patent activity centers on quasi-multi-level power converters, with designs aimed at controlling output voltage levels and transitions while addressing practical system constraints.