James John McCullagh

Title: Innovations of James John McCullagh

Introduction

James John McCullagh is an accomplished inventor based in Ann Arbor, MI. He is known for his innovative contributions to the field of electrical engineering, particularly in the development of charge pump circuits. His work has significant implications for energy efficiency and voltage regulation in electronic devices.

Latest Patents

One of McCullagh's notable patents is the "Full-wave charge pump with low-voltage startup." This invention presents a charge pump circuit that is comprised of transistor pairs arranged in stages. The circuit is designed to receive an input voltage and generate an output voltage that exceeds the input voltage's magnitude. An energy storage device is integrated to receive and store voltage from the charge pump circuit. Additionally, a switching circuit is interfaced with the control terminals of the transistors. This circuit responds to leakage current through the transistors by activating select transistors while the voltage stored by the energy storage device is below the threshold voltage of the transistors.

Career Highlights

James John McCullagh is affiliated with the University of Michigan, where he continues to advance his research and development efforts. His work in the university setting allows him to collaborate with other experts in the field and contribute to cutting-edge innovations.

Collaborations

Some of McCullagh's notable coworkers include Khalil Najafi and Rebecca L. Peterson. Their collaborative efforts enhance the research environment and foster innovation in their respective projects.

Conclusion

James John McCullagh's contributions to the field of electrical engineering, particularly through his patent on charge pump technology, demonstrate his commitment to innovation. His work not only advances academic research but also has practical applications in the industry.