Robert S Wrathall

Title: The Innovations of Robert S Wrathall

Introduction

Robert S Wrathall is a notable inventor based in Durham, NC (US), recognized for his contributions to electrical engineering and power conversion technologies. With a total of 4 patents to his name, Wrathall has made significant advancements in the field, particularly in the area of harmonic content removal and semiconductor devices.

Latest Patents

One of Wrathall's latest patents is titled "Systems and methods of unwanted harmonic content removal for power conversion." This invention provides electrical circuits and methods for power factor correction. The method involves receiving an input voltage at a fundamental frequency and generating an output voltage. It includes generating a first measurement signal based on the output voltage, subtracting a first reference signal to obtain a first error signal, and generating an adaptive current sense signal. The process continues with generating a reference voltage, controlling current measurement, and minimizing the difference signal by removing overtones of the fundamental frequency. This innovative approach allows for effective regulation of the converter.

Another significant patent is for a "Power VDMOSFET with Schottky on lightly doped drain of lateral driver FET." This monolithic semiconductor device features a VDMOS transistor and a lateral MOSFET, where one of the electrodes of the lateral MOSFET has a lower doping concentration. This design forms a Schottky barrier diode, enhancing the performance of the device.

Career Highlights

Throughout his career, Robert S Wrathall has worked with prominent companies such as Harris Corporation and General Electric Company. His experience in these organizations has contributed to his expertise and innovative capabilities in the field of electrical engineering.

Collaborations

Some of his notable coworkers include Frederick P Jones and Joseph A Yedinak, who have collaborated with him on various projects, further enriching his professional journey.

Conclusion

Robert S Wrathall's contributions to electrical engineering and power conversion technologies are significant, with his innovative patents paving the way for advancements in the industry. His work continues to influence the field and inspire future innovations.