This inventor holds 1 USPTO granted patent. Top assignees: Danfoss Power Electronics A/s, Indian Institute of Technology Madras. Active years: 2026.
Company Filing History:
1 out of 72 
1 out of 125 Years Active: 2026
Title: Seshadri Gopalan: Innovator in Power Electronics
Introduction
Seshadri Gopalan is a notable inventor based in Chennai, India. He has made significant contributions to the field of power electronics, particularly in the area of switch control methods. His innovative approach addresses critical issues related to harmonics in supply voltage, enhancing the performance and longevity of electronic systems.
Latest Patents
Seshadri Gopalan holds a patent for a "Switch control method to suppress the effect of even order harmonics in supply voltage on ASD." This invention discloses systems and methods for reducing the impact of even-order harmonics on the DC side components in AC-DC converters. The method involves modifying the firing times of various switches through control logic, which is derived from measuring or estimating the DC bus voltage or the input AC voltage. The proposed control methods are particularly beneficial in Adjustable Speed Drives (ASDs) that utilize full bridge configurations for AC to DC conversion. Additionally, this control method can be applied in ASDs with half bridge rectifier systems. The innovation reduces stress on the DC bus capacitor, increases its lifespan, and minimizes peak current through the device, thereby lowering stress on rectifier components. Furthermore, it effectively reduces the Total Harmonic Distortion (THD) of the line current.
Career Highlights
Seshadri Gopalan has had a distinguished career, working with prestigious organizations such as the Indian Institute of Technology Madras and Danfoss Power Electronics A/S. His experience in these institutions has allowed him to develop and refine his innovative ideas in power electronics.
Collaborations
Throughout his career, Seshadri has collaborated with notable colleagues, including Dinesh Kumar and Krishna Vasudevan. These partnerships have contributed to the advancement of his research and inventions.
Conclusion
Seshadri Gopalan's contributions to power electronics through his innovative patent and collaborative efforts highlight his role as a significant inventor in the field. His work continues to influence the development of more efficient electronic systems.