Peter Adrian Dear

Title: The Innovations of Peter Adrian Dear

Introduction

Peter Adrian Dear is a notable inventor based in London, GB. He has made significant contributions to the field of electrical engineering, particularly in the design of ballast circuits for discharge lamps. His innovative approach has led to the development of a patent that enhances the efficiency and cost-effectiveness of these circuits.

Latest Patents

Peter Adrian Dear holds a patent for "Discharge lamp ballast circuits." This invention utilizes a ballast circuit that incorporates a capacitor in series with a relatively small inductor. The capacitative reactance is designed to be between 24 and 55 times the inductive reactance. This configuration results in unexpectedly low third harmonic distortion while maintaining an acceptable crest factor, which is the ratio of peak to root mean square (r.m.s.) current. The small size of the inductor contributes to high circuit efficiency, as well as reduced cost and weight. The capacitance/inductance ratio is defined in relation to the frequency of the tuned circuit compared to the supply frequency, with a preferred range of 5 to 7.5 times the supply frequency.

Career Highlights

Peter Adrian Dear has worked with Thorn Electrical Industries Limited, where he has applied his expertise in electrical engineering to develop innovative solutions. His work has been instrumental in advancing the technology behind discharge lamps, making them more efficient and reliable.

Collaborations

Peter has collaborated with Wladyslaw Pelc, contributing to the development of new technologies and enhancing the capabilities of their projects.

Conclusion

Peter Adrian Dear's contributions to the field of electrical engineering, particularly through his patent for discharge lamp ballast circuits, demonstrate his innovative spirit and commitment to improving technology. His work continues to influence the industry and pave the way for future advancements.