Frederick Kieferndorf

Title: The Innovations of Frederick Kieferndorf

Introduction

Frederick Kieferndorf is a notable inventor based in Baden, Switzerland. He holds a total of 6 patents that showcase his contributions to the field of electrical engineering and power electronics. His work has significantly impacted the design and operation of power electronic devices and systems.

Latest Patents

One of Kieferndorf's latest patents is a method for operating a power electronic converter device with floating cells. This method involves a converter circuit that includes an input side, an output side, a first converter, and at least one second converter. The second converter features a floating cell with a DC intermediate circuit and semiconductor devices. The method optimizes the switching of semiconductor devices to generate a fundamental voltage component, ensuring that the voltage of the DC intermediate circuit remains within a specified reference voltage range for effective balancing.

Another significant patent is a control scheme for the operation of an electric motor actuator for a medium to high voltage circuit breaker. This invention includes a contact actuating unit that comprises an electro-mechanical device connected to a contact arrangement in the circuit breaker. The control unit is designed to manage the electro-mechanical device, allowing for precise movement of the actuator and contact arrangement to predetermined positions based on specific force or torque values.

Career Highlights

Kieferndorf has worked with prominent companies such as ABB Schweiz AG and ABB Research Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in power electronics and electrical systems.

Collaborations

Throughout his career, Kieferndorf has collaborated with talented professionals, including Tobias Geyer and Georgios Papafotiou. These collaborations have contributed to the advancement of his projects and the successful implementation of his inventions.

Conclusion

Frederick Kieferndorf's contributions to the field of electrical engineering through his patents and collaborations highlight his innovative spirit and dedication to advancing technology. His work continues to influence the design and operation of power electronic systems.