David Lehmann

Title: The Innovative Mind of David Lehmann

Introduction

David Lehmann is a notable inventor based in Heitenried, Switzerland. He has made significant contributions to the field of motor technology, particularly with his innovative approach to sensorless determination of rotor orientation in ironless Permanent Magnet Synchronous Motors (PMSM). His work has implications for improving the efficiency and performance of electric motors.

Latest Patents

David Lehmann holds a patent for a "Method and system for sensorless determination of the orientation of the rotor of an ironless PMSM motor." This patent describes a method that includes specifying a rotor system according to the rotor angle, applying voltage pulses to the motor phases, measuring the current in the motor phases, and determining the expected back EMF along the flux-forming axis. The process involves forming an integral of the expected back EMF and determining the rotor's orientation based on the algebraic sign of this integral.

Career Highlights

Throughout his career, David has worked with Maxon International AG, a company known for its high-precision drive systems. His experience in this company has allowed him to refine his skills and contribute to advancements in motor technology.

Collaborations

David has collaborated with talented individuals such as Damian Frick and Sébastien Mariéthoz. Their combined expertise has likely fostered innovative solutions in their respective projects.

Conclusion

David Lehmann's contributions to motor technology through his patent and career experiences highlight his role as an influential inventor in the field. His innovative methods continue to pave the way for advancements in electric motor efficiency and performance.