Hans-Jurg Wiesmann

Title: Innovations of Hans-Jurg Wiesmann

Introduction

Hans-Jurg Wiesmann is a notable inventor based in Seegraben, Switzerland. He has made significant contributions to the field of electrical engineering, particularly in the development of current limiters. With a total of 3 patents to his name, Wiesmann's work focuses on enhancing the safety and efficiency of electrical systems.

Latest Patents

One of Wiesmann's latest patents is an overcurrent limiter featuring inductive compensation. This innovation utilizes PTC resistors to limit short-circuit currents when connected in series with capacitors and converter valves. The protective devices that operate with these PTC resistors are designed to work reversibly and respond without arcing. They exhibit low inductance, making them suitable for space-saving designs. Furthermore, these protective circuits are characterized by low loss, shake-proof reliability, and the ability to integrate into existing cooling circuits. The PTC resistors are constructed in a meander shape using porous metal foam or metal braid, with electrical contact bridges between their resistor tracks. At least two resistor tracks are arranged in parallel, allowing partial currents to flow in opposite directions through superposed track areas. This design can also accommodate grooves in a cooling body or take on a circular shape. Additionally, a compensation resistor can be included to address uncompensated marginal areas of the resistor tracks.

Career Highlights

Throughout his career, Wiesmann has worked with prominent companies such as Daimler Chrysler AG and BBC Brown, Boveri & Company, Limited. His experience in these organizations has contributed to his expertise in electrical engineering and innovation.

Collaborations

Wiesmann has collaborated with notable colleagues, including Tudor Baiatu and Peter Etter. Their joint efforts have likely fostered advancements in their respective fields.

Conclusion

Hans-Jurg Wiesmann's contributions to electrical engineering, particularly through his innovative patents, demonstrate his commitment to enhancing safety and efficiency in electrical systems. His work continues to influence the industry and inspire future innovations.