John DeWitte Cottingham

Title: John DeWitte Cottingham: Innovator in Aircraft Power Supply Technology

Introduction

John DeWitte Cottingham is a notable inventor based in Anderson, SC (US). He has made significant contributions to the field of aircraft power supply systems, holding 2 patents that enhance the quality and efficiency of power delivery in aviation.

Latest Patents

Cottingham's latest patents include an innovative aircraft power supply and method of operating the same. This aircraft power supply is designed to provide DC power with improved power quality characteristics. It features a transformer control system that utilizes closed-loop feedback from a DC power output to control switches, which can short primary winding turns of a step-down transformer. By manipulating the turns ratio in the transformer, the system compensates for decreases in the DC power output. Another significant patent focuses on an aircraft power supply that includes an input filter, a step-down transformer, one or more rectifier networks, and an output filter with a voltage modulation attenuator. This arrangement passively improves power quality characteristics by reducing voltage transients in the aircraft power supply.

Career Highlights

Throughout his career, Cottingham has worked with Champion Aerospace Inc., where he applied his expertise in power supply technology. His work has contributed to advancements in the reliability and efficiency of aircraft systems.

Collaborations

Cottingham has collaborated with notable professionals in the field, including James R Berliner and Steve John Kempinski. Their combined efforts have furthered the development of innovative solutions in aircraft power systems.

Conclusion

John DeWitte Cottingham's contributions to aircraft power supply technology demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of the complexities involved in providing reliable power to aircraft systems.