James W DuLaney, Jr

Title: Innovations of James W DuLaney, Jr.

Introduction

James W DuLaney, Jr. is an accomplished inventor based in Shakopee, MN (US). He has made significant contributions to the field of technology, particularly in motor control and electronic ballast systems. With a total of 2 patents, his work has had a notable impact on various industries.

Latest Patents

One of his latest patents is titled "Closed-loop rotational control of a brushless dc motor." This invention provides a method and apparatus for controlling a brushless dc motor, commonly used in data storage devices to rotate data storage media. The innovation involves applying a sequence of drive pulses to rotate the motor, with the sequence switching between motor commutation states based on elapsed time changes between successive pulses. Each drive pulse is carefully timed and separated by an intermediate delay, optimizing the motor's performance. The invention also includes a method for accelerating the motor from rest to its final operational velocity using back electromotive force (bemf) commutation.

Another significant patent is the "Electronic ballast with programmable processor." This electronic ballast circuit features a programmable processor that can adjust operating parameters to accommodate various types and sizes of lamps. The processor is capable of varying component parameters, such as inductance and resistance, as well as the oscillation frequency of the ballast circuit. This flexibility allows for optimized circuit operation, enhancing the performance of the lamps.

Career Highlights

Throughout his career, James W DuLaney, Jr. has worked with notable companies, including Seagate Technology Incorporated and Aurora Lighting, Inc. His experience in these organizations has contributed to his expertise in developing innovative technologies.

Collaborations

James has collaborated with several professionals in his field, including Jeffrey A Heydt and David R Street. These collaborations have likely enriched his work and led to further advancements in his inventions.

Conclusion

James W DuLaney, Jr. is a distinguished inventor whose contributions to motor control and electronic ballast technology have made a lasting impact. His innovative patents reflect his dedication to advancing technology and improving efficiency in various applications.