Alain M Cassat

Title: The Innovative Contributions of Alain M Cassat

Introduction

Alain M Cassat is a notable inventor based in Pully, Switzerland. He has made significant contributions to the field of technology, particularly in the development of advanced motor control systems and magnetizing apparatuses. With a total of 5 patents to his name, Cassat's work reflects a commitment to innovation and excellence.

Latest Patents

Cassat's latest patents include a groundbreaking magnetizing apparatus. This invention features a circular magnetizer that comprises circular insulating inset holding pans of axially disposed wires. Each pair of wires carries a current that is oppositely directed from the adjacent pair. The insert is designed to face a back iron across a circular gap, allowing a circular magnet to be positioned within it. This arrangement creates flux lines that establish alternating magnetic poles separated by null zones in the magnet.

Another significant patent is for a closed-loop control system for a brushless DC motor at nominal speed. This apparatus regulates the speed of the motor without relying on conventional rotor position location devices, such as Hall sensors. Instead, it determines the current speed using back EMF zero-crossing measured only on complete rotor revolutions. This innovative approach mitigates motor dissymmetry errors and ensures highly accurate speed control.

Career Highlights

Cassat is currently employed at Seagate Technology Incorporated, where he continues to push the boundaries of technology. His work has been instrumental in advancing the capabilities of motor control systems and magnetization techniques.

Collaborations

Throughout his career, Cassat has collaborated with esteemed colleagues, including Laurent Cardoletti and Donald J MacLeod. These partnerships have fostered an environment of creativity and innovation, leading to the development of cutting-edge technologies.

Conclusion

Alain M Cassat's contributions to the field of technology are noteworthy and impactful. His innovative patents and collaborations highlight his dedication to advancing engineering solutions. As he continues his work at Seagate Technology Incorporated, the future holds great promise for further advancements in his areas of expertise.