Location History:
- Weiher, DE (1976)
- Erlangen, DE (1977)
- Weiher near Erlangen, DE (1978)
- Uttenreuth-Weiher, DE (1991 - 1996)
Company Filing History:
Years Active: 1976-1996
Title: **The Inventive Mind of Karl-Friedrich Leowald**
Introduction
Karl-Friedrich Leowald, based in Weiher, Germany, is a prominent inventor known for his contributions to electrical engineering. With a remarkable portfolio of 11 patents, Leowald has significantly advanced technologies related to controlled series compensators and triggering systems.
Latest Patents
Among Leowald's latest patents is a **method and apparatus for generating a synchronizing signal for a firing-circuit subassembly**. This invention facilitates the triggering of power converter valves in a controlled series compensator. It utilizes a sinusoidal substitute variable, formulated from either measured line currents or a combination of capacitor and valve currents. This innovative approach ensures stable zero crossings of the substitute variable, thereby enhancing operational stability, particularly during resonance.
Another notable patent focuses on a **method and a device for recognizing defects in a triggering system** of a controlled series compensator. By intervening based on an impedance differential calculated from specific system variables, this invention improves the reliability of the controlled series compensator. It enables the identification of defects, thus protecting the system and improving overall performance during network operations.
Career Highlights
Leowald's career includes significant tenures at leading companies, particularly Siemens AG, where he honed his expertise in electrical engineering and innovation. His inventions have played a crucial role in advancing technologies that enhance the functionality and safety of electrical systems.
Collaborations
Throughout his career, Leowald has collaborated with notable professionals such as Jakob Schenk and Stephan Weiss. These partnerships have contributed to the development and refinement of his innovative ideas, showcasing the importance of teamwork in the field of invention.
Conclusion
In conclusion, Karl-Friedrich Leowald stands as a distinguished figure in the realm of electrical engineering. His 11 patents, including groundbreaking methods for generating synchronizing signals and recognizing defects in triggering systems, highlight his inventive spirit. His collaborations and experience at prominent companies such as Siemens further underscore his significant impact on the industry.