James H Spreen

Title: **James H. Spreen: Innovator in Transformer Technology**

Introduction

James H. Spreen, an accomplished inventor based in Stone Ridge, NY, has made substantial contributions to transformer technology through his extensive research and innovative mindset. With a portfolio of 10 patents, Spreen has developed methods and devices that enhance the efficiency and functionality of transformers, particularly in electrical engineering applications.

Latest Patents

Among Spreen's notable inventions is a patent titled *Suppression of Transformer Capacitive Current*. This invention describes a method and apparatus aimed at mitigating capacitive current in transformers. The approach involves modifying the winding of a transformer into two identical halves wired in a series aiding configuration. By implementing a center point at a constant potential throughout the transformer’s switching cycle, Spreen achieves the suppression of capacitive current in the input/output leads through the introduction of common mode impedance. Various techniques, such as using magnetic materials like toroids or beads, enable this suppression effectively.

Another significant patent from Spreen is the *Three Coil Bridge Transformer*, which features an E-E shaped magnetic core. This invention divides the primary winding into three identical planar coils wired in series, facilitating the induction of consistent magnetic fluxes. The innovative design includes a secondary constructed from a contact plate and conductor frame, allowing enhanced power delivery and efficient cooling within switch mode power supplies. Both inventions reflect Spreen's commitment to advancing electrical engineering technologies.

Career Highlights

James H. Spreen works for the International Business Machines Corporation (IBM), where he has dedicated his expertise to research and development in transformer technology. His career at IBM is marked by a series of innovative breakthroughs that have paved the way for advancements in power supply systems and electrical efficiency.

Collaborations

Spreen collaborates with talented colleagues, including John B. Gillett and Kevin Robert Covi, who share his passion for innovation in electrical engineering. Together, they exchange ideas and knowledge to further enhance their respective projects and contribute to pioneering technologies in the industry.

Conclusion

As a recognized inventor, James H. Spreen continues to shape the future of transformer technology through his innovative patents and collaborative work at IBM. His inventions not only solve existing challenges in electrical engineering but also set the stage for future advancements in power supply systems.