Misha Kumar

Title: Innovations of Misha Kumar

Introduction

Misha Kumar is an accomplished inventor based in Cary, NC (US). She has made significant contributions to the field of electrical engineering, particularly in the development of advanced DC-DC converters. With a total of seven patents to her name, Misha has demonstrated her expertise and innovative spirit in her work.

Latest Patents

Misha's latest patents include a soft-switched resonant DC-DC converter with a wide gain range. This invention introduces a novel phase-shift based modulation strategy that enables the converter to operate with zero voltage-switching (ZVS) across a wide voltage and power range. The converter operates at a fixed fundamental frequency, with the output current controlled based on the amount of phase shift of the fundamental component at the output of the inverter portion of the converter. To achieve soft switching, the rectifier portion of the converter is controlled to phase shift the fundamental component of the rectifier voltage observed at a rectifier reference terminal. By requiring a phase shift of the voltage at the rectifier terminal relative to the output voltage of the inverter, the inverter current is adjusted to achieve ZVS.

Another notable patent is the multiple-port bidirectional converter and control method. This invention describes a bidirectional DC-DC converter with three or more ports, utilizing a common transformer for all ports. It allows for power transfer from any port to any or all of the remaining ports. The converter may utilize a controller that implements variable-frequency control, delay-time control, and/or phase-delay control to achieve desired power transfer between the converter ports. In some cases, power transfer between ports can operate similarly to a series-resonant converter or a dual active bridge converter.

Career Highlights

Misha Kumar is currently employed at Delta Electronics, Inc., where she continues to innovate and develop cutting-edge technologies. Her work has significantly impacted the field of power electronics, and she is recognized for her contributions to the industry.

Collaborations

Misha collaborates with talented individuals such as Yungtaek Jang and Peter Mantovanelli Barbosa, enhancing her projects with diverse expertise and perspectives.

Conclusion

Misha Kumar is a remarkable inventor whose work in DC-DC converters showcases her innovative capabilities and dedication to advancing technology. Her contributions continue to influence the field and inspire future innovations.