Kari Tikkanen

Title: Innovations by Kari Tikkanen

Introduction

Kari Tikkanen is an accomplished inventor based in New Berlin, Wisconsin. She has made significant contributions to the field of electrical engineering, particularly in the design and manufacturing of rotating electrical machines. With a total of five patents to her name, her work has had a notable impact on the industry.

Latest Patents

Kari's latest patents include innovative technologies aimed at improving the efficiency and reliability of electrical machines. One of her patents focuses on the reduction of shaft voltage in rotating electrical machines. This invention involves a machine frame, a rotor, a shaft attached to the rotor, and bearings that support the shaft and rotor within the machine frame. Additionally, the design incorporates an electrically conducting member with a hole, allowing the shaft to extend through it. Another significant patent addresses temperature estimation in power semiconductor devices within electric drive systems. This technology estimates junction temperature by monitoring the direction of electrical current to determine which power semiconductor is in an on-state, while also sensing the voltage drop across it. The correlation between voltage drop and temperature is dependent on the level of electrical current.

Career Highlights

Throughout her career, Kari has worked with prominent companies such as ABB Schweiz AG and ABB Oy. Her experience in these organizations has allowed her to develop and refine her innovative ideas, contributing to advancements in electrical engineering.

Collaborations

Kari has collaborated with notable professionals in her field, including Jukka-Pekka Sjoroos and Kjell Ingman. These partnerships have fostered a creative environment that has led to the development of her groundbreaking inventions.

Conclusion

Kari Tikkanen's contributions to the field of electrical engineering through her patents and collaborations highlight her role as a leading inventor. Her innovative work continues to influence the industry and pave the way for future advancements.