Yogendra K Chawla

Title: Innovations by Yogendra K Chawla: Pioneering High Power RF Amplifiers

Introduction

Yogendra K Chawla, an accomplished inventor based in Pittsford, NY, has significantly contributed to the field of high-power RF amplification. With a total of five patents to his name, Chawla is recognized for his innovative approaches to designing electronic components that enhance performance and reliability in various applications.

Latest Patents

Chawla's most recent patent is focused on the development of a Parallel HV MOSFET high power stable amplifier. This high-power grounded-drain source follower RF amplifier circuit utilizes a high voltage MOSFET, applying the RF signal with respect to ground via an isolation transformer. This configuration ensures stable performance, making it suitable for high-power applications. The design features a 13.56 MHz 3 KW power amplifier topology, which includes isolated RF input drive for each MOSFET die. The inclusion of kilowatt power transistors (KPTs) with multiple large area MOSFET dies allows for advanced thermal and electrical performance. Furthermore, Chawla has designed generators with capacities of 2.5 KW, 5 KW, and 10 KW that apply innovative filtering techniques to minimize harmonic distortion while protecting the MOSFETs.

Another crucial invention from Chawla is a linear RF power amplifier that employs push-pull pairs of high voltage MOSFETs. This design minimizes the need for transformers while maximizing efficiency, contributing to improved thermal management. By integrating thermal sensors for gate bias control and voltage regulation, Chawla’s invention ensures durability and reliability in high-stress environments.

Career Highlights

Chawla's career reflects a commitment to innovation in electronic engineering. He has notably worked with Eni Technologies Inc. and Eni, where he developed advanced technologies for RF amplifiers. His experience in the industry allowed him to refine his designs, focusing on performance and thermal stability, essential elements in high-powered RF applications.

Collaborations

Throughout his career, Chawla has collaborated with esteemed professionals in the field, including Leonid Reyzelman and Craig A Covert. These partnerships have fostered an environment of creativity and innovation, leading to the successful development and implementation of cutting-edge technologies.

Conclusion

Yogendra K Chawla exemplifies the spirit of innovation, tirelessly working to advance the capabilities of RF technology. His patents represent a blend of creativity and technical expertise, contributing to significant improvements in high-power RF amplification. As he continues to innovate, Chawla undoubtedly leaves a lasting impact on the industry, paving the way for future advancements in electronic engineering.