Wolfgang M Radziwill

Title: Wolfgang M Radziwill: Innovator in DC Motor Technology

Introduction

Wolfgang M Radziwill is a notable inventor based in Aachen, Germany. He has made significant contributions to the field of electrical engineering, particularly in the development of control circuits for DC motors. With a total of 3 patents to his name, Radziwill's work has had a lasting impact on motor technology.

Latest Patents

Radziwill's latest patents include innovative designs that enhance the functionality of collectorless DC motors. One of his key inventions is a commutation circuit for a collectorless DC motor. This control circuit operates without a commutation sensor and features a stator with a multiphase system and a permanent-magnet rotor. The commutation state of the motor is determined by the voltages induced in the stator windings. A comparison signal is generated to indicate whether the winding voltage aligns with a predetermined sign based on the instantaneous commutation state. This comparison signal is inhibited during transient effects that may cause spurious zero crossings in the windings. The switching elements are advanced one commutation step further if the comparison signal does not have the appropriate sign.

Another significant patent is for a DC motor with an electronic commutation circuit. This design utilizes magnetically controllable electronic switches in the form of integrated semiconductor circuits. Each switch consists of a first switching path between a first input terminal and an output terminal, and a second switching path between a second input terminal and the output terminal. The magnetic field of the rotor controls these switching paths, ensuring that only one path is closed at any given time.

Career Highlights

Wolfgang M Radziwill is associated with U.S. Philips Corporation, where he has contributed to various projects related to motor technology. His work has been instrumental in advancing the efficiency and reliability of DC motors.

Collaborations

Radziwill has collaborated with notable colleagues such as Gunter Doring and Hans Steinbusch. Their combined expertise has fostered innovation in the field of electrical engineering.

Conclusion

Wolfgang M Radziwill's contributions to DC motor technology through his patents and collaborations highlight his role as a significant inventor in the field. His innovative designs continue to influence the development of efficient motor systems.