Roland Walter

Title: **The Innovative Mind of Roland Walter**

Introduction

Roland Walter, an accomplished inventor based in Tiefenbronn, Germany, has made significant contributions to the field of electric drive technologies. With a total of four patents to his name, his innovative spirit is evident in his latest works that aim to enhance the efficiency and performance of electric motors.

Latest Patents

Walter’s most recent patents include a **method and device for operating an electric drive with the aid of phase angle control**. This invention focuses on a process for operating an electric motor using phase angle control techniques. The key steps involve applying an AC voltage to a series connection of the electric motor and a switching element, like a triac. The switching element is activated by an ignition signal, allowing current flow only when above a certain level. This patent introduces a method for determining the time of a zero crossing of a virtual motor current, which improves the operation of electric drives.

Another notable patent by Walter is a **method and circuit for regulating the speed of a commutator series-wound motor**. This invention, particularly applicable to universal motors, outlines a system for speed regulation through a semiconductor switching element arranged in series with armature and field windings. The control unit receives input signals corresponding to voltage drops and compares them with characteristic lines, allowing it to generate control signals that optimize performance.

Career Highlights

Roland Walter works at Robert Bosch GmbH, a leading global supplier of technology and services. Throughout his career, he has demonstrated a keen insight into electric motor mechanics and controls, solidifying his reputation as a thought leader in the industry.

Collaborations

Walter collaborates with notable professionals Dietmar Hahn and Klaus Dengler at Robert Bosch GmbH. Their teamwork fosters an environment of innovation and drives the development of new technologies that enhance electric drive systems.

Conclusion

Roland Walter's contributions to the field of electric drives reflect his commitment to innovation. Through his patents and collaborative efforts, he continues to impact technology positively, making strides toward more efficient and effective electric motor solutions.