Company Filing History:
Years Active: 2015-2016
Title: The Innovations of Stefan Spannhake
Introduction
Stefan Spannhake is a notable inventor based in Markgroeningen, Germany. He has made significant contributions to the field of electrical engineering, particularly in the operation of electrical machines. With a total of 2 patents to his name, Spannhake's work focuses on enhancing the efficiency and safety of synchronous machines.
Latest Patents
One of Spannhake's latest patents is titled "Method and device for operating an electrical machine having separate excitation." This invention involves a method and device that utilize a sensor system to determine a variable characterizing rotor and/or stator temperature. The control unit then specifies the excitation current and stator currents based on these temperature variables, particularly within specified operating ranges.
Another significant patent is the "Circuit arrangement for limiting the overvoltage of an excitation winding of a synchronous machine having rapid de-excitation." This circuit arrangement is designed to de-excite an excitation winding in the event of a fault. It includes a control circuit that manages current flow through the excitation winding, allowing for both positive control voltage for excitation and negative control voltage for rapid de-excitation. Additionally, a protective circuit is integrated to limit voltage and facilitate de-excitation if a connecting line is interrupted.
Career Highlights
Stefan Spannhake is currently employed at Robert Bosch GmbH, a leading company in the engineering and technology sector. His work at Bosch has allowed him to apply his innovative ideas in practical applications, contributing to advancements in electrical machine technology.
Collaborations
Throughout his career, Spannhake has collaborated with esteemed colleagues such as Jochen Fassnacht and Hans-Peter Mueller. These collaborations have fostered a creative environment that encourages the development of groundbreaking technologies.
Conclusion
Stefan Spannhake's contributions to the field of electrical engineering through his patents and work at Robert Bosch GmbH highlight his innovative spirit and dedication to advancing technology. His inventions are paving the way for more efficient and safer electrical machines.